vba-clojure: src/common/lua-engine.cpp annotate

annotate src/common/lua-engine.cpp @ 4:5f6f2134e8ce

apu appears to not be used

author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:35:58 -0600
parents	f9f4f1b99eed
children	bf9169ad4222

rev	line source
rlm@1	1 #include <cstdio>
rlm@1	2 #include <cstdlib>
rlm@1	3 #include <malloc.h>
rlm@1	4 #include <string>
rlm@1	5 #include <cassert>
rlm@1	6 #include <cctype>
rlm@1	7 #include <cmath>
rlm@1	8 #include <ctime>
rlm@1	9
rlm@1	10 #include <vector>
rlm@1	11 #include <map>
rlm@1	12 #include <string>
rlm@1	13 #include <algorithm>
rlm@1	14
rlm@1	15 using namespace std;
rlm@1	16
rlm@1	17 #ifdef __linux
rlm@1	18 #include <unistd.h> // for unlink
rlm@1	19 #include <sys/types.h>
rlm@1	20 #include <sys/wait.h>
rlm@1	21 #endif
rlm@1	22 #if (defined(WIN32) && !defined(SDL))
rlm@1	23 #include <direct.h>
rlm@1	24 #include "../win32/stdafx.h"
rlm@1	25 #include "../win32/Input.h"
rlm@1	26 #include "../win32/MainWnd.h"
rlm@1	27 #include "../win32/VBA.h"
rlm@1	28 #include "../win32/LuaOpenDialog.h"
rlm@1	29 #else
rlm@1	30 #define stricmp strcasecmp
rlm@1	31 #define strnicmp strncasecmp
rlm@1	32 #endif
rlm@1	33
rlm@1	34 #include "../Port.h"
rlm@1	35 #include "System.h"
rlm@1	36 #include "movie.h"
rlm@1	37 #include "../gba/GBA.h"
rlm@1	38 #include "../gba/GBAGlobals.h"
rlm@1	39 #include "../gb/GB.h"
rlm@1	40 #include "../gb/gbGlobals.h"
rlm@1	41 #include "../gba/GBASound.h"
rlm@1	42
rlm@1	43 #ifdef _WIN32
rlm@1	44 #include "../win32/Sound.h"
rlm@1	45 //#include "../win32/WinMiscUtil.h"
rlm@1	46 extern CString winGetSavestateFilename(const CString &LogicalRomName, int nID);
rlm@1	47 #else
rlm@1	48 #endif
rlm@1	49
rlm@1	50 extern "C"
rlm@1	51 {
rlm@1	52 #include "../lua/src/lua.h"
rlm@1	53 #include "../lua/src/lauxlib.h"
rlm@1	54 #include "../lua/src/lualib.h"
rlm@1	55 #include "../lua/src/lstate.h"
rlm@1	56 }
rlm@1	57 #include "vbalua.h"
rlm@1	58
rlm@1	59 #include "../SFMT/SFMT.c"
rlm@1	60
rlm@1	61 static void (info_print)(int uid, const char str);
rlm@1	62 static void (*info_onstart)(int uid);
rlm@1	63 static void (*info_onstop)(int uid);
rlm@1	64 static int info_uid;
rlm@1	65
rlm@1	66 #ifndef countof
rlm@1	67 #define countof(a) (sizeof(a) / sizeof(a[0]))
rlm@1	68 #endif
rlm@1	69
rlm@1	70 static lua_State *LUA;
rlm@1	71
rlm@1	72 // Are we running any code right now?
rlm@1	73 static char *luaScriptName = NULL;
rlm@1	74
rlm@1	75 // Are we running any code right now?
rlm@1	76 static bool8 luaRunning = false;
rlm@1	77
rlm@1	78 // True at the frame boundary, false otherwise.
rlm@1	79 static bool8 frameBoundary = false;
rlm@1	80
rlm@1	81 // The execution speed we're running at.
rlm@1	82 static enum { SPEED_NORMAL, SPEED_NOTHROTTLE, SPEED_TURBO, SPEED_MAXIMUM } speedmode = SPEED_NORMAL;
rlm@1	83
rlm@1	84 // Rerecord count skip mode
rlm@1	85 static bool8 skipRerecords = false;
rlm@1	86
rlm@1	87 // Used by the registry to find our functions
rlm@1	88 static const char *frameAdvanceThread = "VBA.FrameAdvance";
rlm@1	89 static const char *guiCallbackTable = "VBA.GUI";
rlm@1	90
rlm@1	91 // True if there's a thread waiting to run after a run of frame-advance.
rlm@1	92 static bool8 frameAdvanceWaiting = false;
rlm@1	93
rlm@1	94 // We save our pause status in the case of a natural death.
rlm@1	95 //static bool8 wasPaused = false;
rlm@1	96
rlm@1	97 // Transparency strength. 255=opaque, 0=so transparent it's invisible
rlm@1	98 static int transparencyModifier = 255;
rlm@1	99
rlm@1	100 // Our joypads.
rlm@1	101 static uint32 lua_joypads[4];
rlm@1	102 static uint8 lua_joypads_used = 0;
rlm@1	103
rlm@1	104 static bool8 gui_used = false;
rlm@1	105 static uint8 *gui_data = NULL; // BGRA
rlm@1	106
rlm@1	107 // Protects Lua calls from going nuts.
rlm@1	108 // We set this to a big number like 1000 and decrement it
rlm@1	109 // over time. The script gets knifed once this reaches zero.
rlm@1	110 static int numTries;
rlm@1	111
rlm@1	112 // number of registered memory functions (1 per hooked byte)
rlm@1	113 static unsigned int numMemHooks;
rlm@1	114
rlm@1	115 // Look in inputglobal.h for macros named like BUTTON_MASK_UP to determine the order.
rlm@1	116 static const char *button_mappings[] = {
rlm@1	117 "A", "B", "select", "start", "right", "left", "up", "down", "R", "L"
rlm@1	118 };
rlm@1	119
rlm@1	120 #ifdef _MSC_VER
rlm@1	121 #define snprintf _snprintf
rlm@1	122 #define vscprintf _vscprintf
rlm@1	123 #else
rlm@1	124 #define stricmp strcasecmp
rlm@1	125 #define strnicmp strncasecmp
rlm@1	126 #define __forceinline __attribute__((always_inline))
rlm@1	127 #endif
rlm@1	128
rlm@1	129 static const char *luaCallIDStrings[] =
rlm@1	130 {
rlm@1	131 "CALL_BEFOREEMULATION",
rlm@1	132 "CALL_AFTEREMULATION",
rlm@1	133 "CALL_BEFOREEXIT"
rlm@1	134 };
rlm@1	135
rlm@1	136 //make sure we have the right number of strings
rlm@1	137 CTASSERT(sizeof(luaCallIDStrings) / sizeof(*luaCallIDStrings) == LUACALL_COUNT)
rlm@1	138
rlm@1	139 static const char *luaMemHookTypeStrings [] =
rlm@1	140 {
rlm@1	141 "MEMHOOK_WRITE",
rlm@1	142 "MEMHOOK_READ",
rlm@1	143 "MEMHOOK_EXEC",
rlm@1	144
rlm@1	145 "MEMHOOK_WRITE_SUB",
rlm@1	146 "MEMHOOK_READ_SUB",
rlm@1	147 "MEMHOOK_EXEC_SUB",
rlm@1	148 };
rlm@1	149
rlm@1	150 //make sure we have the right number of strings
rlm@1	151 CTASSERT(sizeof(luaMemHookTypeStrings) / sizeof(*luaMemHookTypeStrings) == LUAMEMHOOK_COUNT)
rlm@1	152
rlm@1	153 static char rawToCString(lua_State L, int idx = 0);
rlm@1	154 static const char toCString(lua_State L, int idx = 0);
rlm@1	155
rlm@1	156 // GBA memory I/O functions copied from win32/MemoryViewerDlg.cpp
rlm@1	157 static inline u8 CPUReadByteQuick(u32 addr)
rlm@1	158 {
rlm@1	159 return ::map[addr >> 24].address[addr & ::map[addr >> 24].mask];
rlm@1	160 }
rlm@1	161
rlm@1	162 static inline void CPUWriteByteQuick(u32 addr, u8 b)
rlm@1	163 {
rlm@1	164 ::map[addr >> 24].address[addr & ::map[addr >> 24].mask] = b;
rlm@1	165 }
rlm@1	166
rlm@1	167 static inline u16 CPUReadHalfWordQuick(u32 addr)
rlm@1	168 {
rlm@1	169 return ((u16 ) &::map[addr >> 24].address[addr & ::map[addr >> 24].mask]);
rlm@1	170 }
rlm@1	171
rlm@1	172 static inline void CPUWriteHalfWordQuick(u32 addr, u16 b)
rlm@1	173 {
rlm@1	174 ((u16 ) &::map[addr >> 24].address[addr & ::map[addr >> 24].mask]) = b;
rlm@1	175 }
rlm@1	176
rlm@1	177 static inline u32 CPUReadMemoryQuick(u32 addr)
rlm@1	178 {
rlm@1	179 return ((u32 ) &::map[addr >> 24].address[addr & ::map[addr >> 24].mask]);
rlm@1	180 }
rlm@1	181
rlm@1	182 static inline void CPUWriteMemoryQuick(u32 addr, u32 b)
rlm@1	183 {
rlm@1	184 ((u32 ) &::map[addr >> 24].address[addr & ::map[addr >> 24].mask]) = b;
rlm@1	185 }
rlm@1	186
rlm@1	187 // GB
rlm@1	188 static inline u8 gbReadMemoryQuick8(u16 addr)
rlm@1	189 {
rlm@1	190 return gbReadMemoryQuick(addr);
rlm@1	191 }
rlm@1	192
rlm@1	193 static inline void gbWriteMemoryQuick8(u16 addr, u8 b)
rlm@1	194 {
rlm@1	195 gbWriteMemoryQuick(addr, b);
rlm@1	196 }
rlm@1	197
rlm@1	198 static inline u16 gbReadMemoryQuick16(u16 addr)
rlm@1	199 {
rlm@1	200 return (gbReadMemoryQuick(addr + 1) << 8) \| gbReadMemoryQuick(addr);
rlm@1	201 }
rlm@1	202
rlm@1	203 static inline void gbWriteMemoryQuick16(u16 addr, u16 b)
rlm@1	204 {
rlm@1	205 gbWriteMemoryQuick(addr, b & 0xff);
rlm@1	206 gbWriteMemoryQuick(addr + 1, (b >> 8) & 0xff);
rlm@1	207 }
rlm@1	208
rlm@1	209 static inline u32 gbReadMemoryQuick32(u16 addr)
rlm@1	210 {
rlm@1	211 return (gbReadMemoryQuick(addr + 3) << 24) \|
rlm@1	212 (gbReadMemoryQuick(addr + 2) << 16) \|
rlm@1	213 (gbReadMemoryQuick(addr + 1) << 8) \|
rlm@1	214 gbReadMemoryQuick(addr);
rlm@1	215 }
rlm@1	216
rlm@1	217 static inline void gbWriteMemoryQuick32(u16 addr, u32 b)
rlm@1	218 {
rlm@1	219 gbWriteMemoryQuick(addr, b & 0xff);
rlm@1	220 gbWriteMemoryQuick(addr + 1, (b >> 8) & 0xff);
rlm@1	221 gbWriteMemoryQuick(addr + 2, (b >> 16) & 0xff);
rlm@1	222 gbWriteMemoryQuick(addr + 1, (b >> 24) & 0xff);
rlm@1	223 }
rlm@1	224
rlm@1	225 static inline u8 gbReadROMQuick8(u32 addr)
rlm@1	226 {
rlm@1	227 return gbReadROMQuick(addr & gbRomSizeMask);
rlm@1	228 }
rlm@1	229
rlm@1	230 static inline u8 gbReadROMQuick16(u32 addr)
rlm@1	231 {
rlm@1	232 return (gbReadROMQuick(addr+1 & gbRomSizeMask) << 8) \| gbReadROMQuick(addr & gbRomSizeMask);
rlm@1	233 }
rlm@1	234
rlm@1	235 static inline u8 gbReadROMQuick32(u32 addr)
rlm@1	236 {
rlm@1	237 return (gbReadROMQuick(addr+3 & gbRomSizeMask) << 24) \|
rlm@1	238 (gbReadROMQuick(addr+2 & gbRomSizeMask) << 16) \|
rlm@1	239 (gbReadROMQuick(addr+1 & gbRomSizeMask) << 8) \|
rlm@1	240 gbReadROMQuick(addr & gbRomSizeMask);
rlm@1	241 }
rlm@1	242
rlm@1	243 typedef void (GetColorFunc)(const uint8 , uint8 , uint8 , uint8 *);
rlm@1	244 typedef void (SetColorFunc)(uint8 , uint8, uint8, uint8);
rlm@1	245
rlm@1	246 static void getColor16(const uint8 s, uint8 r, uint8 g, uint8 b)
rlm@1	247 {
rlm@1	248 u16 v = (const uint16 )s;
rlm@1	249 *r = ((v >> systemBlueShift) & 0x001f) << 3;
rlm@1	250 *g = ((v >> systemGreenShift) & 0x001f) << 3;
rlm@1	251 *b = ((v >> systemRedShift) & 0x001f) << 3;
rlm@1	252 }
rlm@1	253
rlm@1	254 static void getColor24(const uint8 s, uint8 r, uint8 g, uint8 b)
rlm@1	255 {
rlm@1	256 if (systemRedShift > systemBlueShift)
rlm@1	257 b = s[0], g = s[1], *r = s[2];
rlm@1	258 else
rlm@1	259 r = s[0], g = s[1], *b = s[2];
rlm@1	260 }
rlm@1	261
rlm@1	262 static void getColor32(const uint8 s, uint8 r, uint8 g, uint8 b)
rlm@1	263 {
rlm@1	264 u32 v = (const uint32 )s;
rlm@1	265 *b = ((v >> systemBlueShift) & 0x001f) << 3;
rlm@1	266 *g = ((v >> systemGreenShift) & 0x001f) << 3;
rlm@1	267 *r = ((v >> systemRedShift) & 0x001f) << 3;
rlm@1	268 }
rlm@1	269
rlm@1	270 static void setColor16(uint8 *s, uint8 r, uint8 g, uint8 b)
rlm@1	271 {
rlm@1	272 (uint16 )s = ((b >> 3) & 0x01f) <<
rlm@1	273 systemBlueShift \|
rlm@1	274 ((g >> 3) & 0x01f) <<
rlm@1	275 systemGreenShift \|
rlm@1	276 ((r >> 3) & 0x01f) <<
rlm@1	277 systemRedShift;
rlm@1	278 }
rlm@1	279
rlm@1	280 static void setColor24(uint8 *s, uint8 r, uint8 g, uint8 b)
rlm@1	281 {
rlm@1	282 if (systemRedShift > systemBlueShift)
rlm@1	283 s[0] = b, s[1] = g, s[2] = r;
rlm@1	284 else
rlm@1	285 s[0] = r, s[1] = g, s[2] = b;
rlm@1	286 }
rlm@1	287
rlm@1	288 static void setColor32(uint8 *s, uint8 r, uint8 g, uint8 b)
rlm@1	289 {
rlm@1	290 (uint32 )s = ((b >> 3) & 0x01f) <<
rlm@1	291 systemBlueShift \|
rlm@1	292 ((g >> 3) & 0x01f) <<
rlm@1	293 systemGreenShift \|
rlm@1	294 ((r >> 3) & 0x01f) <<
rlm@1	295 systemRedShift;
rlm@1	296 }
rlm@1	297
rlm@1	298 static bool getColorIOFunc(int depth, GetColorFunc getColor, SetColorFunc setColor)
rlm@1	299 {
rlm@1	300 switch (depth)
rlm@1	301 {
rlm@1	302 case 16:
rlm@1	303 if (getColor)
rlm@1	304 *getColor = getColor16;
rlm@1	305 if (setColor)
rlm@1	306 *setColor = setColor16;
rlm@1	307 return true;
rlm@1	308 case 24:
rlm@1	309 if (getColor)
rlm@1	310 *getColor = getColor24;
rlm@1	311 if (setColor)
rlm@1	312 *setColor = setColor24;
rlm@1	313 return true;
rlm@1	314 case 32:
rlm@1	315 if (getColor)
rlm@1	316 *getColor = getColor32;
rlm@1	317 if (setColor)
rlm@1	318 *setColor = setColor32;
rlm@1	319 return true;
rlm@1	320 default:
rlm@1	321 return false;
rlm@1	322 }
rlm@1	323 }
rlm@1	324
rlm@1	325 /**
rlm@1	326 * Resets emulator speed / pause states after script exit.
rlm@1	327 */
rlm@1	328 static void VBALuaOnStop(void)
rlm@1	329 {
rlm@1	330 luaRunning = false;
rlm@1	331 lua_joypads_used = 0;
rlm@1	332 gui_used = false;
rlm@1	333 //if (wasPaused)
rlm@1	334 // systemSetPause(true);
rlm@1	335 }
rlm@1	336
rlm@1	337 /**
rlm@1	338 * Asks Lua if it wants control of the emulator's speed.
rlm@1	339 * Returns 0 if no, 1 if yes. If yes, we also tamper with the
rlm@1	340 * IPPU's settings for speed ourselves, so the calling code
rlm@1	341 * need not do anything.
rlm@1	342 */
rlm@1	343 int VBALuaSpeed(void)
rlm@1	344 {
rlm@1	345 if (!LUA \|\| !luaRunning)
rlm@1	346 return 0;
rlm@1	347
rlm@1	348 //printf("%d\n", speedmode);
rlm@1	349 switch (speedmode)
rlm@1	350 {
rlm@1	351 /*
rlm@1	352 case SPEED_NORMAL:
rlm@1	353 return 0;
rlm@1	354 case SPEED_NOTHROTTLE:
rlm@1	355 IPPU.RenderThisFrame = true;
rlm@1	356 return 1;
rlm@1	357
rlm@1	358 case SPEED_TURBO:
rlm@1	359 IPPU.SkippedFrames++;
rlm@1	360 if (IPPU.SkippedFrames >= 40) {
rlm@1	361 IPPU.SkippedFrames = 0;
rlm@1	362 IPPU.RenderThisFrame = true;
rlm@1	363 }
rlm@1	364 else
rlm@1	365 IPPU.RenderThisFrame = false;
rlm@1	366 return 1;
rlm@1	367
rlm@1	368 // In mode 3, SkippedFrames is set to zero so that the frame
rlm@1	369 // skipping code doesn't try anything funny.
rlm@1	370 case SPEED_MAXIMUM:
rlm@1	371 IPPU.SkippedFrames=0;
rlm@1	372 IPPU.RenderThisFrame = false;
rlm@1	373 return 1;
rlm@1	374 */
rlm@1	375 case 0: // FIXME: to get rid of the warning
rlm@1	376 default:
rlm@1	377 assert(false);
rlm@1	378 return 0;
rlm@1	379 }
rlm@1	380 }
rlm@1	381
rlm@1	382 ///////////////////////////
rlm@1	383 // vba.speedmode(string mode)
rlm@1	384 //
rlm@1	385 // Takes control of the emulation speed
rlm@1	386 // of the system. Normal is normal speed (60fps, 50 for PAL),
rlm@1	387 // nothrottle disables speed control but renders every frame,
rlm@1	388 // turbo renders only a few frames in order to speed up emulation,
rlm@1	389
rlm@1	390 // maximum renders no frames
rlm@1	391 static int vba_speedmode(lua_State *L)
rlm@1	392 {
rlm@1	393 const char *mode = luaL_checkstring(L, 1);
rlm@1	394
rlm@1	395 if (strcasecmp(mode, "normal") == 0)
rlm@1	396 {
rlm@1	397 speedmode = SPEED_NORMAL;
rlm@1	398 }
rlm@1	399 else if (strcasecmp(mode, "nothrottle") == 0)
rlm@1	400 {
rlm@1	401 speedmode = SPEED_NOTHROTTLE;
rlm@1	402 }
rlm@1	403 else if (strcasecmp(mode, "turbo") == 0)
rlm@1	404 {
rlm@1	405 speedmode = SPEED_TURBO;
rlm@1	406 }
rlm@1	407 else if (strcasecmp(mode, "maximum") == 0)
rlm@1	408 {
rlm@1	409 speedmode = SPEED_MAXIMUM;
rlm@1	410 }
rlm@1	411 else
rlm@1	412 luaL_error(L, "Invalid mode %s to vba.speedmode", mode);
rlm@1	413
rlm@1	414 //printf("new speed mode: %d\n", speedmode);
rlm@1	415 return 0;
rlm@1	416 }
rlm@1	417
rlm@1	418 // vba.frameadvnace()
rlm@1	419 //
rlm@1	420 // Executes a frame advance. Occurs by yielding the coroutine, then re-running
rlm@1	421
rlm@1	422 // when we break out.
rlm@1	423 static int vba_frameadvance(lua_State *L)
rlm@1	424 {
rlm@1	425 // We're going to sleep for a frame-advance. Take notes.
rlm@1	426 if (frameAdvanceWaiting)
rlm@1	427 return luaL_error(L, "can't call vba.frameadvance() from here");
rlm@1	428
rlm@1	429 frameAdvanceWaiting = true;
rlm@1	430
rlm@1	431 // Don't do this! The user won't like us sending their emulator out of control!
rlm@1	432 // Settings.FrameAdvance = true;
rlm@1	433 // Now we can yield to the main
rlm@1	434 return lua_yield(L, 0);
rlm@1	435
rlm@1	436 // It's actually rather disappointing...
rlm@1	437 }
rlm@1	438
rlm@1	439 // vba.pause()
rlm@1	440 //
rlm@1	441 // Pauses the emulator, function "waits" until the user unpauses.
rlm@1	442 // This function MAY be called from a non-frame boundary, but the frame
rlm@1	443
rlm@1	444 // finishes executing anwyays. In this case, the function returns immediately.
rlm@1	445 static int vba_pause(lua_State *L)
rlm@1	446 {
rlm@1	447 systemSetPause(true);
rlm@1	448 speedmode = SPEED_NORMAL;
rlm@1	449
rlm@1	450 // Return control if we're midway through a frame. We can't pause here.
rlm@1	451 if (frameAdvanceWaiting)
rlm@1	452 {
rlm@1	453 return 0;
rlm@1	454 }
rlm@1	455
rlm@1	456 // If it's on a frame boundary, we also yield.
rlm@1	457 frameAdvanceWaiting = true;
rlm@1	458 return lua_yield(L, 0);
rlm@1	459 }
rlm@1	460
rlm@1	461 static int vba_registerbefore(lua_State *L)
rlm@1	462 {
rlm@1	463 if (!lua_isnil(L, 1))
rlm@1	464 luaL_checktype(L, 1, LUA_TFUNCTION);
rlm@1	465 lua_settop(L, 1);
rlm@1	466 lua_getfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_BEFOREEMULATION]);
rlm@1	467 lua_insert(L, 1);
rlm@1	468 lua_setfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_BEFOREEMULATION]);
rlm@1	469
rlm@1	470 //StopScriptIfFinished(luaStateToUIDMap[L]);
rlm@1	471 return 1;
rlm@1	472 }
rlm@1	473
rlm@1	474 static int vba_registerafter(lua_State *L)
rlm@1	475 {
rlm@1	476 if (!lua_isnil(L, 1))
rlm@1	477 luaL_checktype(L, 1, LUA_TFUNCTION);
rlm@1	478 lua_settop(L, 1);
rlm@1	479 lua_getfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_AFTEREMULATION]);
rlm@1	480 lua_insert(L, 1);
rlm@1	481 lua_setfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_AFTEREMULATION]);
rlm@1	482
rlm@1	483 //StopScriptIfFinished(luaStateToUIDMap[L]);
rlm@1	484 return 1;
rlm@1	485 }
rlm@1	486
rlm@1	487 static int vba_registerexit(lua_State *L)
rlm@1	488 {
rlm@1	489 if (!lua_isnil(L, 1))
rlm@1	490 luaL_checktype(L, 1, LUA_TFUNCTION);
rlm@1	491 lua_settop(L, 1);
rlm@1	492 lua_getfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_BEFOREEXIT]);
rlm@1	493 lua_insert(L, 1);
rlm@1	494 lua_setfield(L, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_BEFOREEXIT]);
rlm@1	495
rlm@1	496 //StopScriptIfFinished(luaStateToUIDMap[L]);
rlm@1	497 return 1;
rlm@1	498 }
rlm@1	499
rlm@1	500 static inline bool isalphaorunderscore(char c)
rlm@1	501 {
rlm@1	502 return isalpha(c) \|\| c == '_';
rlm@1	503 }
rlm@1	504
rlm@1	505 static std::vector<const void *> s_tableAddressStack; // prevents infinite recursion of a table within a table (when cycle is
rlm@1	506 // found, print something like table:parent)
rlm@1	507 static std::vector<const void *> s_metacallStack; // prevents infinite recursion if something's __tostring returns another table
rlm@1	508 // that contains that something (when cycle is found, print the inner result
rlm@1	509 // without using __tostring)
rlm@1	510
rlm@1	511 #define APPENDPRINT { int _n = snprintf(ptr, remaining,
rlm@1	512 #define END ); if (_n >= 0) { ptr += _n; remaining -= _n; } else { remaining = 0; } }
rlm@1	513 static void toCStringConverter(lua_State L, int i, char &ptr, int &remaining)
rlm@1	514 {
rlm@1	515 if (remaining <= 0)
rlm@1	516 return;
rlm@1	517
rlm@1	518 const char *str = ptr; // for debugging
rlm@1	519
rlm@1	520 // if there is a __tostring metamethod then call it
rlm@1	521 int usedMeta = luaL_callmeta(L, i, "__tostring");
rlm@1	522 if (usedMeta)
rlm@1	523 {
rlm@1	524 std::vector<const void *>::const_iterator foundCycleIter = std::find(s_metacallStack.begin(), s_metacallStack.end(), lua_topointer(L, i));
rlm@1	525 if (foundCycleIter != s_metacallStack.end())
rlm@1	526 {
rlm@1	527 lua_pop(L, 1);
rlm@1	528 usedMeta = false;
rlm@1	529 }
rlm@1	530 else
rlm@1	531 {
rlm@1	532 s_metacallStack.push_back(lua_topointer(L, i));
rlm@1	533 i = lua_gettop(L);
rlm@1	534 }
rlm@1	535 }
rlm@1	536
rlm@1	537 switch (lua_type(L, i))
rlm@1	538 {
rlm@1	539 case LUA_TNONE:
rlm@1	540 break;
rlm@1	541 case LUA_TNIL:
rlm@1	542 APPENDPRINT "nil" END break;
rlm@1	543 case LUA_TBOOLEAN:
rlm@1	544 APPENDPRINT lua_toboolean(L, i) ? "true" : "false" END break;
rlm@1	545 case LUA_TSTRING : APPENDPRINT "%s", lua_tostring(L, i) END break;
rlm@1	546 case LUA_TNUMBER:
rlm@1	547 APPENDPRINT "%.12Lg", lua_tonumber(L, i) END break;
rlm@1	548 case LUA_TFUNCTION:
rlm@1	549 if ((L->base + i - 1)->value.gc->cl.c.isC)
rlm@1	550 {
rlm@1	551 //lua_CFunction func = lua_tocfunction(L, i);
rlm@1	552 //std::map<lua_CFunction, const char*>::iterator iter = s_cFuncInfoMap.find(func);
rlm@1	553 //if(iter == s_cFuncInfoMap.end())
rlm@1	554 goto defcase;
rlm@1	555 //APPENDPRINT "function(%s)", iter->second END
rlm@1	556 }
rlm@1	557 else
rlm@1	558 {
rlm@1	559 APPENDPRINT "function(" END
rlm@1	560 Proto * p = (L->base + i - 1)->value.gc->cl.l.p;
rlm@1	561 int numParams = p->numparams + (p->is_vararg ? 1 : 0);
rlm@1	562 for (int n = 0; n < p->numparams; n++)
rlm@1	563 {
rlm@1	564 APPENDPRINT "%s", getstr(p->locvars[n].varname) END
rlm@1	565 if (n != numParams - 1)
rlm@1	566 APPENDPRINT "," END
rlm@1	567 }
rlm@1	568 if (p->is_vararg)
rlm@1	569 APPENDPRINT "..." END
rlm@1	570 APPENDPRINT ")" END
rlm@1	571 }
rlm@1	572 break;
rlm@1	573 defcase: default:
rlm@1	574 APPENDPRINT "%s:%p", luaL_typename(L, i), lua_topointer(L, i) END break;
rlm@1	575 case LUA_TTABLE:
rlm@1	576 {
rlm@1	577 // first make sure there's enough stack space
rlm@1	578 if (!lua_checkstack(L, 4))
rlm@1	579 {
rlm@1	580 // note that even if lua_checkstack never returns false,
rlm@1	581 // that doesn't mean we didn't need to call it,
rlm@1	582 // because calling it retrieves stack space past LUA_MINSTACK
rlm@1	583 goto defcase;
rlm@1	584 }
rlm@1	585
rlm@1	586 std::vector<const void *>::const_iterator foundCycleIter =
rlm@1	587 std::find(s_tableAddressStack.begin(), s_tableAddressStack.end(), lua_topointer(L, i));
rlm@1	588 if (foundCycleIter != s_tableAddressStack.end())
rlm@1	589 {
rlm@1	590 int parentNum = s_tableAddressStack.end() - foundCycleIter;
rlm@1	591 if (parentNum > 1)
rlm@1	592 APPENDPRINT "%s:parent^%d", luaL_typename(L, i), parentNum END
rlm@1	593 else
rlm@1	594 APPENDPRINT "%s:parent", luaL_typename(L, i) END
rlm@1	595 }
rlm@1	596 else
rlm@1	597 {
rlm@1	598 s_tableAddressStack.push_back(lua_topointer(L, i));
rlm@1	599 struct Scope { ~Scope(){ s_tableAddressStack. pop_back(); } } scope;
rlm@1	600
rlm@1	601 APPENDPRINT "{" END
rlm@1	602
rlm@1	603 lua_pushnil(L); // first key
rlm@1	604 int keyIndex = lua_gettop(L);
rlm@1	605 int valueIndex = keyIndex + 1;
rlm@1	606 bool first = true;
rlm@1	607 bool skipKey = true; // true if we're still in the "array part" of the table
rlm@1	608 lua_Number arrayIndex = (lua_Number)0;
rlm@1	609 while (lua_next(L, i))
rlm@1	610 {
rlm@1	611 if (first)
rlm@1	612 first = false;
rlm@1	613 else
rlm@1	614 APPENDPRINT ", " END
rlm@1	615 if (skipKey)
rlm@1	616 {
rlm@1	617 arrayIndex += (lua_Number)1;
rlm@1	618 bool keyIsNumber = (lua_type(L, keyIndex) == LUA_TNUMBER);
rlm@1	619 skipKey = keyIsNumber && (lua_tonumber(L, keyIndex) == arrayIndex);
rlm@1	620 }
rlm@1	621 if (!skipKey)
rlm@1	622 {
rlm@1	623 bool keyIsString = (lua_type(L, keyIndex) == LUA_TSTRING);
rlm@1	624 bool invalidLuaIdentifier = (!keyIsString \|\| !isalphaorunderscore(*lua_tostring(L, keyIndex)));
rlm@1	625 if (invalidLuaIdentifier)
rlm@1	626 if (keyIsString)
rlm@1	627 APPENDPRINT "['" END
rlm@1	628 else
rlm@1	629 APPENDPRINT "[" END
rlm@1	630
rlm@1	631 toCStringConverter(L, keyIndex, ptr, remaining);
rlm@1	632 // key
rlm@1	633
rlm@1	634 if (invalidLuaIdentifier)
rlm@1	635 if (keyIsString)
rlm@1	636 APPENDPRINT "']=" END
rlm@1	637 else
rlm@1	638 APPENDPRINT "]=" END
rlm@1	639 else
rlm@1	640 APPENDPRINT "=" END
rlm@1	641 }
rlm@1	642
rlm@1	643 bool valueIsString = (lua_type(L, valueIndex) == LUA_TSTRING);
rlm@1	644 if (valueIsString)
rlm@1	645 APPENDPRINT "'" END
rlm@1	646
rlm@1	647 toCStringConverter(L, valueIndex, ptr, remaining); // value
rlm@1	648
rlm@1	649 if (valueIsString)
rlm@1	650 APPENDPRINT "'" END
rlm@1	651
rlm@1	652 lua_pop(L, 1);
rlm@1	653
rlm@1	654 if (remaining <= 0)
rlm@1	655 {
rlm@1	656 lua_settop(L, keyIndex - 1); // stack might not be clean yet if we're breaking
rlm@1	657 // early
rlm@1	658 break;
rlm@1	659 }
rlm@1	660 }
rlm@1	661 APPENDPRINT "}" END
rlm@1	662 }
rlm@1	663 }
rlm@1	664 break;
rlm@1	665 }
rlm@1	666
rlm@1	667 if (usedMeta)
rlm@1	668 {
rlm@1	669 s_metacallStack.pop_back();
rlm@1	670 lua_pop(L, 1);
rlm@1	671 }
rlm@1	672 }
rlm@1	673
rlm@1	674 static const int s_tempStrMaxLen = 64 * 1024;
rlm@1	675 static char s_tempStr [s_tempStrMaxLen];
rlm@1	676
rlm@1	677 static char rawToCString(lua_State L, int idx)
rlm@1	678 {
rlm@1	679 int a = idx > 0 ? idx : 1;
rlm@1	680 int n = idx > 0 ? idx : lua_gettop(L);
rlm@1	681
rlm@1	682 char *ptr = s_tempStr;
rlm@1	683 *ptr = 0;
rlm@1	684
rlm@1	685 int remaining = s_tempStrMaxLen;
rlm@1	686 for (int i = a; i <= n; i++)
rlm@1	687 {
rlm@1	688 toCStringConverter(L, i, ptr, remaining);
rlm@1	689 if (i != n)
rlm@1	690 APPENDPRINT " " END
rlm@1	691 }
rlm@1	692
rlm@1	693 if (remaining < 3)
rlm@1	694 {
rlm@1	695 while (remaining < 6)
rlm@1	696 remaining++, ptr--;
rlm@1	697 APPENDPRINT "..." END
rlm@1	698 }
rlm@1	699 APPENDPRINT "\r\n" END
rlm@1	700 // the trailing newline is so print() can avoid having to do wasteful things to print its newline
rlm@1	701 // (string copying would be wasteful and calling info.print() twice can be extremely slow)
rlm@1	702 // at the cost of functions that don't want the newline needing to trim off the last two characters
rlm@1	703 // (which is a very fast operation and thus acceptable in this case)
rlm@1	704
rlm@1	705 return s_tempStr;
rlm@1	706 }
rlm@1	707 #undef APPENDPRINT
rlm@1	708 #undef END
rlm@1	709
rlm@1	710 // replacement for luaB_tostring() that is able to show the contents of tables (and formats numbers better, and show function
rlm@1	711 // prototypes)
rlm@1	712 // can be called directly from lua via tostring(), assuming tostring hasn't been reassigned
rlm@1	713 static int tostring(lua_State *L)
rlm@1	714 {
rlm@1	715 char *str = rawToCString(L);
rlm@1	716 str[strlen(str) - 2] = 0; // hack: trim off the \r\n (which is there to simplify the print function's
rlm@1	717 // task)
rlm@1	718 lua_pushstring(L, str);
rlm@1	719 return 1;
rlm@1	720 }
rlm@1	721
rlm@1	722 // like rawToCString, but will check if the global Lua function tostring()
rlm@1	723 // has been replaced with a custom function, and call that instead if so
rlm@1	724 static const char toCString(lua_State L, int idx)
rlm@1	725 {
rlm@1	726 int a = idx > 0 ? idx : 1;
rlm@1	727 int n = idx > 0 ? idx : lua_gettop(L);
rlm@1	728 lua_getglobal(L, "tostring");
rlm@1	729 lua_CFunction cf = lua_tocfunction(L, -1);
rlm@1	730 if (cf == tostring \|\| lua_isnil(L, -1)) // optimization: if using our own C tostring function, we can
rlm@1	731 // bypass the call through Lua and all the string object
rlm@1	732 // allocation that would entail
rlm@1	733 {
rlm@1	734 lua_pop(L, 1);
rlm@1	735 return rawToCString(L, idx);
rlm@1	736 }
rlm@1	737 else // if the user overrided the tostring function, we have to actually call it and store the
rlm@1	738 // temporarily allocated string it returns
rlm@1	739 {
rlm@1	740 lua_pushstring(L, "");
rlm@1	741 for (int i = a; i <= n; i++)
rlm@1	742 {
rlm@1	743 lua_pushvalue(L, -2); // function to be called
rlm@1	744 lua_pushvalue(L, i); // value to print
rlm@1	745 lua_call(L, 1, 1);
rlm@1	746 if (lua_tostring(L, -1) == NULL)
rlm@1	747 luaL_error(L, LUA_QL("tostring") " must return a string to " LUA_QL("print"));
rlm@1	748 lua_pushstring(L, (i < n) ? " " : "\r\n");
rlm@1	749 lua_concat(L, 3);
rlm@1	750 }
rlm@1	751 const char *str = lua_tostring(L, -1);
rlm@1	752 strncpy(s_tempStr, str, s_tempStrMaxLen);
rlm@1	753 s_tempStr[s_tempStrMaxLen - 1] = 0;
rlm@1	754 lua_pop(L, 2);
rlm@1	755 return s_tempStr;
rlm@1	756 }
rlm@1	757 }
rlm@1	758
rlm@1	759 // replacement for luaB_print() that goes to the appropriate textbox instead of stdout
rlm@1	760 static int print(lua_State *L)
rlm@1	761 {
rlm@1	762 const char *str = toCString(L);
rlm@1	763
rlm@1	764 int uid = info_uid; //luaStateToUIDMap[L->l_G->mainthread];
rlm@1	765 //LuaContextInfo& info = GetCurrentInfo();
rlm@1	766
rlm@1	767 if (info_print)
rlm@1	768 info_print(uid, str);
rlm@1	769 else
rlm@1	770 puts(str);
rlm@1	771
rlm@1	772 //worry(L, 100);
rlm@1	773 return 0;
rlm@1	774 }
rlm@1	775
rlm@1	776 static int printerror(lua_State *L, int idx)
rlm@1	777 {
rlm@1	778 lua_checkstack(L, lua_gettop(L) + 4);
rlm@1	779
rlm@1	780 if (idx < 0)
rlm@1	781 idx = lua_gettop(L) + 1 + idx;
rlm@1	782
rlm@1	783 const char *str = rawToCString(L, idx);
rlm@1	784
rlm@1	785 int uid = info_uid; //luaStateToUIDMap[L->l_G->mainthread];
rlm@1	786 //LuaContextInfo& info = GetCurrentInfo();
rlm@1	787
rlm@1	788 if (info_print)
rlm@1	789 info_print(uid, str);
rlm@1	790 else
rlm@1	791 fputs(str, stderr);
rlm@1	792
rlm@1	793 //worry(L, 100);
rlm@1	794 return 0;
rlm@1	795 }
rlm@1	796
rlm@1	797 // vba.message(string msg)
rlm@1	798 //
rlm@1	799 // Displays the given message on the screen.
rlm@1	800 static int vba_message(lua_State *L)
rlm@1	801 {
rlm@1	802 const char *msg = luaL_checkstring(L, 1);
rlm@1	803 systemScreenMessage(msg);
rlm@1	804
rlm@1	805 return 0;
rlm@1	806 }
rlm@1	807
rlm@1	808 // provides an easy way to copy a table from Lua
rlm@1	809 // (simple assignment only makes an alias, but sometimes an independent table is desired)
rlm@1	810 // currently this function only performs a shallow copy,
rlm@1	811 // but I think it should be changed to do a deep copy (possibly of configurable depth?)
rlm@1	812 // that maintains the internal table reference structure
rlm@1	813 static int copytable(lua_State *L)
rlm@1	814 {
rlm@1	815 int origIndex = 1; // we only care about the first argument
rlm@1	816 int origType = lua_type(L, origIndex);
rlm@1	817 if (origType == LUA_TNIL)
rlm@1	818 {
rlm@1	819 lua_pushnil(L);
rlm@1	820 return 1;
rlm@1	821 }
rlm@1	822 if (origType != LUA_TTABLE)
rlm@1	823 {
rlm@1	824 luaL_typerror(L, 1, lua_typename(L, LUA_TTABLE));
rlm@1	825 lua_pushnil(L);
rlm@1	826 return 1;
rlm@1	827 }
rlm@1	828
rlm@1	829 lua_createtable(L, lua_objlen(L, 1), 0);
rlm@1	830 int copyIndex = lua_gettop(L);
rlm@1	831
rlm@1	832 lua_pushnil(L); // first key
rlm@1	833 int keyIndex = lua_gettop(L);
rlm@1	834 int valueIndex = keyIndex + 1;
rlm@1	835
rlm@1	836 while (lua_next(L, origIndex))
rlm@1	837 {
rlm@1	838 lua_pushvalue(L, keyIndex);
rlm@1	839 lua_pushvalue(L, valueIndex);
rlm@1	840 lua_rawset(L, copyIndex); // copytable[key] = value
rlm@1	841 lua_pop(L, 1);
rlm@1	842 }
rlm@1	843
rlm@1	844 // copy the reference to the metatable as well, if any
rlm@1	845 if (lua_getmetatable(L, origIndex))
rlm@1	846 lua_setmetatable(L, copyIndex);
rlm@1	847
rlm@1	848 return 1; // return the new table
rlm@1	849 }
rlm@1	850
rlm@1	851 // because print traditionally shows the address of tables,
rlm@1	852 // and the print function I provide instead shows the contents of tables,
rlm@1	853 // I also provide this function
rlm@1	854 // (otherwise there would be no way to see a table's address, AFAICT)
rlm@1	855 static int addressof(lua_State *L)
rlm@1	856 {
rlm@1	857 const void *ptr = lua_topointer(L, -1);
rlm@1	858 lua_pushinteger(L, (lua_Integer)ptr);
rlm@1	859 return 1;
rlm@1	860 }
rlm@1	861
rlm@1	862 struct registerPointerMap
rlm@1	863 {
rlm@1	864 const char * registerName;
rlm@1	865 unsigned int *pointer;
rlm@1	866 int dataSize;
rlm@1	867 };
rlm@1	868
rlm@1	869 #define RPM_ENTRY(name, var) \
rlm@1	870 { name, (unsigned int *)&var, sizeof(var) \
rlm@1	871 } \
rlm@1	872 ,
rlm@1	873
rlm@1	874 extern gbRegister AF;
rlm@1	875 extern gbRegister BC;
rlm@1	876 extern gbRegister DE;
rlm@1	877 extern gbRegister HL;
rlm@1	878 extern gbRegister SP;
rlm@1	879 extern gbRegister PC;
rlm@1	880 extern u16 IFF;
rlm@1	881
rlm@1	882 registerPointerMap regPointerMap [] = {
rlm@1	883 // gba registers
rlm@1	884 RPM_ENTRY("r0", reg[0].I)
rlm@1	885 RPM_ENTRY("r1", reg[1].I)
rlm@1	886 RPM_ENTRY("r2", reg[2].I)
rlm@1	887 RPM_ENTRY("r3", reg[3].I)
rlm@1	888 RPM_ENTRY("r4", reg[4].I)
rlm@1	889 RPM_ENTRY("r5", reg[5].I)
rlm@1	890 RPM_ENTRY("r6", reg[6].I)
rlm@1	891 RPM_ENTRY("r7", reg[7].I)
rlm@1	892 RPM_ENTRY("r8", reg[8].I)
rlm@1	893 RPM_ENTRY("r9", reg[9].I)
rlm@1	894 RPM_ENTRY("r10", reg[10].I)
rlm@1	895 RPM_ENTRY("r11", reg[11].I)
rlm@1	896 RPM_ENTRY("r12", reg[12].I)
rlm@1	897 RPM_ENTRY("r13", reg[13].I)
rlm@1	898 RPM_ENTRY("r14", reg[14].I)
rlm@1	899 RPM_ENTRY("r15", reg[15].I)
rlm@1	900 RPM_ENTRY("cpsr", reg[16].I)
rlm@1	901 RPM_ENTRY("spsr", reg[17].I)
rlm@1	902 // gb registers
rlm@1	903 RPM_ENTRY("a", AF.B.B1)
rlm@1	904 RPM_ENTRY("f", AF.B.B0)
rlm@1	905 RPM_ENTRY("b", BC.B.B1)
rlm@1	906 RPM_ENTRY("c", BC.B.B0)
rlm@1	907 RPM_ENTRY("d", DE.B.B1)
rlm@1	908 RPM_ENTRY("e", DE.B.B0)
rlm@1	909 RPM_ENTRY("h", HL.B.B1)
rlm@1	910 RPM_ENTRY("l", HL.B.B0)
rlm@1	911 RPM_ENTRY("af", AF.W)
rlm@1	912 RPM_ENTRY("bc", BC.W)
rlm@1	913 RPM_ENTRY("de", DE.W)
rlm@1	914 RPM_ENTRY("hl", HL.W)
rlm@1	915 RPM_ENTRY("sp", SP.W)
rlm@1	916 RPM_ENTRY("pc", PC.W)
rlm@1	917 {}
rlm@1	918 };
rlm@1	919
rlm@1	920 struct cpuToRegisterMap
rlm@1	921 {
rlm@1	922 const char *cpuName;
rlm@1	923 registerPointerMap *rpmap;
rlm@1	924 }
rlm@1	925 cpuToRegisterMaps [] =
rlm@1	926 {
rlm@1	927 { "", regPointerMap },
rlm@1	928 };
rlm@1	929
rlm@1	930 //DEFINE_LUA_FUNCTION(memory_getregister, "cpu_dot_registername_string")
rlm@1	931 static int memory_getregister(lua_State *L)
rlm@1	932 {
rlm@1	933 const char *qualifiedRegisterName = luaL_checkstring(L, 1);
rlm@1	934 lua_settop(L, 0);
rlm@1	935 for (int cpu = 0; cpu < sizeof(cpuToRegisterMaps) / sizeof(*cpuToRegisterMaps); cpu++)
rlm@1	936 {
rlm@1	937 cpuToRegisterMap ctrm = cpuToRegisterMaps[cpu];
rlm@1	938 int cpuNameLen = strlen(ctrm.cpuName);
rlm@1	939 if (!strnicmp(qualifiedRegisterName, ctrm.cpuName, cpuNameLen))
rlm@1	940 {
rlm@1	941 qualifiedRegisterName += cpuNameLen;
rlm@1	942 for (int reg = 0; ctrm.rpmap[reg].dataSize; reg++)
rlm@1	943 {
rlm@1	944 registerPointerMap rpm = ctrm.rpmap[reg];
rlm@1	945 if (!stricmp(qualifiedRegisterName, rpm.registerName))
rlm@1	946 {
rlm@1	947 switch (rpm.dataSize)
rlm@1	948 {
rlm@1	949 default:
rlm@1	950 case 1:
rlm@1	951 lua_pushinteger(L, (unsigned char )rpm.pointer); break;
rlm@1	952 case 2:
rlm@1	953 lua_pushinteger(L, (unsigned short )rpm.pointer); break;
rlm@1	954 case 4:
rlm@1	955 lua_pushinteger(L, (unsigned long )rpm.pointer); break;
rlm@1	956 }
rlm@1	957 return 1;
rlm@1	958 }
rlm@1	959 }
rlm@1	960 lua_pushnil(L);
rlm@1	961 return 1;
rlm@1	962 }
rlm@1	963 }
rlm@1	964 lua_pushnil(L);
rlm@1	965 return 1;
rlm@1	966 }
rlm@1	967
rlm@1	968 //DEFINE_LUA_FUNCTION(memory_setregister, "cpu_dot_registername_string,value")
rlm@1	969 static int memory_setregister(lua_State *L)
rlm@1	970 {
rlm@1	971 const char * qualifiedRegisterName = luaL_checkstring(L, 1);
rlm@1	972 unsigned long value = (unsigned long)(luaL_checkinteger(L, 2));
rlm@1	973 lua_settop(L, 0);
rlm@1	974 for (int cpu = 0; cpu < sizeof(cpuToRegisterMaps) / sizeof(*cpuToRegisterMaps); cpu++)
rlm@1	975 {
rlm@1	976 cpuToRegisterMap ctrm = cpuToRegisterMaps[cpu];
rlm@1	977 int cpuNameLen = strlen(ctrm.cpuName);
rlm@1	978 if (!strnicmp(qualifiedRegisterName, ctrm.cpuName, cpuNameLen))
rlm@1	979 {
rlm@1	980 qualifiedRegisterName += cpuNameLen;
rlm@1	981 for (int reg = 0; ctrm.rpmap[reg].dataSize; reg++)
rlm@1	982 {
rlm@1	983 registerPointerMap rpm = ctrm.rpmap[reg];
rlm@1	984 if (!stricmp(qualifiedRegisterName, rpm.registerName))
rlm@1	985 {
rlm@1	986 switch (rpm.dataSize)
rlm@1	987 {
rlm@1	988 default:
rlm@1	989 case 1:
rlm@1	990 (unsigned char )rpm.pointer = (unsigned char)(value & 0xFF); break;
rlm@1	991 case 2:
rlm@1	992 (unsigned short )rpm.pointer = (unsigned short)(value & 0xFFFF); break;
rlm@1	993 case 4:
rlm@1	994 (unsigned long )rpm.pointer = value; break;
rlm@1	995 }
rlm@1	996 return 0;
rlm@1	997 }
rlm@1	998 }
rlm@1	999 return 0;
rlm@1	1000 }
rlm@1	1001 }
rlm@1	1002 return 0;
rlm@1	1003 }
rlm@1	1004
rlm@1	1005 void HandleCallbackError(lua_State *L)
rlm@1	1006 {
rlm@1	1007 if (L->errfunc \|\| L->errorJmp)
rlm@1	1008 luaL_error(L, "%s", lua_tostring(L, -1));
rlm@1	1009 else
rlm@1	1010 {
rlm@1	1011 lua_pushnil(LUA);
rlm@1	1012 lua_setfield(LUA, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	1013
rlm@1	1014 // Error?
rlm@1	1015 //#if (defined(WIN32) && !defined(SDL))
rlm@1	1016 // info_print(info_uid, lua_tostring(LUA, -1)); //Clear_Sound_Buffer();
rlm@1	1017 // AfxGetApp()->m_pMainWnd->MessageBox(lua_tostring(LUA, -1), "Lua run error", MB_OK \| MB_ICONSTOP);
rlm@1	1018 //#else
rlm@1	1019 // fprintf(stderr, "Lua thread bombed out: %s\n", lua_tostring(LUA, -1));
rlm@1	1020 //#endif
rlm@1	1021 printerror(LUA, -1);
rlm@1	1022 VBALuaStop();
rlm@1	1023 }
rlm@1	1024 }
rlm@1	1025
rlm@1	1026 void CallRegisteredLuaFunctions(LuaCallID calltype)
rlm@1	1027 {
rlm@1	1028 assert((unsigned int)calltype < (unsigned int)LUACALL_COUNT);
rlm@1	1029
rlm@1	1030 const char *idstring = luaCallIDStrings[calltype];
rlm@1	1031
rlm@1	1032 if (!LUA)
rlm@1	1033 return;
rlm@1	1034
rlm@1	1035 lua_settop(LUA, 0);
rlm@1	1036 lua_getfield(LUA, LUA_REGISTRYINDEX, idstring);
rlm@1	1037
rlm@1	1038 int errorcode = 0;
rlm@1	1039 if (lua_isfunction(LUA, -1))
rlm@1	1040 {
rlm@1	1041 errorcode = lua_pcall(LUA, 0, 0, 0);
rlm@1	1042 if (errorcode)
rlm@1	1043 HandleCallbackError(LUA);
rlm@1	1044 }
rlm@1	1045 else
rlm@1	1046 {
rlm@1	1047 lua_pop(LUA, 1);
rlm@1	1048 }
rlm@1	1049 }
rlm@1	1050
rlm@1	1051 // the purpose of this structure is to provide a way of
rlm@1	1052 // QUICKLY determining whether a memory address range has a hook associated with it,
rlm@1	1053 // with a bias toward fast rejection because the majority of addresses will not be hooked.
rlm@1	1054 // (it must not use any part of Lua or perform any per-script operations,
rlm@1	1055 // otherwise it would definitely be too slow.)
rlm@1	1056 // calculating the regions when a hook is added/removed may be slow,
rlm@1	1057 // but this is an intentional tradeoff to obtain a high speed of checking during later execution
rlm@1	1058 struct TieredRegion
rlm@1	1059 {
rlm@1	1060 template<unsigned int maxGap>
rlm@1	1061 struct Region
rlm@1	1062 {
rlm@1	1063 struct Island
rlm@1	1064 {
rlm@1	1065 unsigned int start;
rlm@1	1066 unsigned int end;
rlm@1	1067 __forceinline bool Contains(unsigned int address, int size) const { return address < end && address + size > start; }
rlm@1	1068 };
rlm@1	1069 std::vector<Island> islands;
rlm@1	1070
rlm@1	1071 void Calculate(const std::vector<unsigned int> &bytes)
rlm@1	1072 {
rlm@1	1073 islands. clear();
rlm@1	1074
rlm@1	1075 unsigned int lastEnd = ~0;
rlm@1	1076
rlm@1	1077 std::vector<unsigned int>::const_iterator iter = bytes.begin();
rlm@1	1078 std::vector<unsigned int>::const_iterator end = bytes.end();
rlm@1	1079 for (; iter != end; ++iter)
rlm@1	1080 {
rlm@1	1081 unsigned int addr = *iter;
rlm@1	1082 if (addr < lastEnd \|\| addr > lastEnd + (long long)maxGap)
rlm@1	1083 {
rlm@1	1084 islands. push_back(Island());
rlm@1	1085 islands. back().start = addr;
rlm@1	1086 }
rlm@1	1087 islands.back(). end = addr + 1;
rlm@1	1088 lastEnd = addr + 1;
rlm@1	1089 }
rlm@1	1090 }
rlm@1	1091
rlm@1	1092 bool Contains(unsigned int address, int size) const
rlm@1	1093 {
rlm@1	1094 for (size_t i = 0; i != islands.size(); ++i)
rlm@1	1095 {
rlm@1	1096 if (islands[i].Contains(address, size))
rlm@1	1097 return true;
rlm@1	1098 }
rlm@1	1099 return false;
rlm@1	1100 }
rlm@1	1101 };
rlm@1	1102
rlm@1	1103 Region<0xFFFFFFFF> broad;
rlm@1	1104 Region<0x1000> mid;
rlm@1	1105 Region<0> narrow;
rlm@1	1106
rlm@1	1107 void Calculate(std::vector<unsigned int> &bytes)
rlm@1	1108 {
rlm@1	1109 std:: sort(bytes.begin(), bytes.end());
rlm@1	1110
rlm@1	1111 broad. Calculate(bytes);
rlm@1	1112 mid. Calculate(bytes);
rlm@1	1113 narrow. Calculate(bytes);
rlm@1	1114 }
rlm@1	1115
rlm@1	1116 TieredRegion()
rlm@1	1117 {
rlm@1	1118 std::vector <unsigned int> temp;
rlm@1	1119 Calculate(temp);
rlm@1	1120 }
rlm@1	1121
rlm@1	1122 __forceinline int NotEmpty()
rlm@1	1123 {
rlm@1	1124 return broad.islands.size();
rlm@1	1125 }
rlm@1	1126
rlm@1	1127 // note: it is illegal to call this if NotEmpty() returns 0
rlm@1	1128 __forceinline bool Contains(unsigned int address, int size)
rlm@1	1129 {
rlm@1	1130 return broad.islands[0].Contains(address, size) &&
rlm@1	1131 mid.Contains(address, size) &&
rlm@1	1132 narrow.Contains(address, size);
rlm@1	1133 }
rlm@1	1134 };
rlm@1	1135 TieredRegion hookedRegions [LUAMEMHOOK_COUNT];
rlm@1	1136
rlm@1	1137 static void CalculateMemHookRegions(LuaMemHookType hookType)
rlm@1	1138 {
rlm@1	1139 std::vector<unsigned int> hookedBytes;
rlm@1	1140 // std::map<int, LuaContextInfo*>::iterator iter = luaContextInfo.begin();
rlm@1	1141 // std::map<int, LuaContextInfo*>::iterator end = luaContextInfo.end();
rlm@1	1142 // while(iter != end)
rlm@1	1143 // {
rlm@1	1144 // LuaContextInfo& info = *iter->second;
rlm@1	1145 if (/info./ numMemHooks)
rlm@1	1146 {
rlm@1	1147 lua_State L = LUA /info.L*/;
rlm@1	1148 if (L)
rlm@1	1149 {
rlm@1	1150 lua_settop(L, 0);
rlm@1	1151 lua_getfield(L, LUA_REGISTRYINDEX, luaMemHookTypeStrings[hookType]);
rlm@1	1152 lua_pushnil(L);
rlm@1	1153 while (lua_next(L, -2))
rlm@1	1154 {
rlm@1	1155 if (lua_isfunction(L, -1))
rlm@1	1156 {
rlm@1	1157 unsigned int addr = lua_tointeger(L, -2);
rlm@1	1158 hookedBytes.push_back(addr);
rlm@1	1159 }
rlm@1	1160 lua_pop(L, 1);
rlm@1	1161 }
rlm@1	1162 lua_settop(L, 0);
rlm@1	1163 }
rlm@1	1164 }
rlm@1	1165 // ++iter;
rlm@1	1166 // }
rlm@1	1167 hookedRegions[hookType].Calculate(hookedBytes);
rlm@1	1168 }
rlm@1	1169
rlm@1	1170 static void CallRegisteredLuaMemHook_LuaMatch(unsigned int address, int size, unsigned int value, LuaMemHookType hookType)
rlm@1	1171 {
rlm@1	1172 // std::map<int, LuaContextInfo*>::iterator iter = luaContextInfo.begin();
rlm@1	1173 // std::map<int, LuaContextInfo*>::iterator end = luaContextInfo.end();
rlm@1	1174 // while(iter != end)
rlm@1	1175 // {
rlm@1	1176 // LuaContextInfo& info = *iter->second;
rlm@1	1177 if (/info./ numMemHooks)
rlm@1	1178 {
rlm@1	1179 lua_State L = LUA /info.L*/;
rlm@1	1180 if (L /* && !info.panic*/)
rlm@1	1181 {
rlm@1	1182 #ifdef USE_INFO_STACK
rlm@1	1183 infoStack.insert(infoStack.begin(), &info);
rlm@1	1184 struct Scope { ~Scope(){ infoStack. erase(infoStack.begin()); } } scope;
rlm@1	1185 #endif
rlm@1	1186 lua_settop(L, 0);
rlm@1	1187 lua_getfield(L, LUA_REGISTRYINDEX, luaMemHookTypeStrings[hookType]);
rlm@1	1188 for (int i = address; i != address + size; i++)
rlm@1	1189 {
rlm@1	1190 lua_rawgeti(L, -1, i);
rlm@1	1191 if (lua_isfunction(L, -1))
rlm@1	1192 {
rlm@1	1193 bool wasRunning = (luaRunning != 0) /info.running/;
rlm@1	1194 luaRunning /info.running/ = true;
rlm@1	1195 //RefreshScriptSpeedStatus();
rlm@1	1196 lua_pushinteger(L, address);
rlm@1	1197 lua_pushinteger(L, size);
rlm@1	1198 int errorcode = lua_pcall(L, 2, 0, 0);
rlm@1	1199 luaRunning /info.running/ = wasRunning;
rlm@1	1200 //RefreshScriptSpeedStatus();
rlm@1	1201 if (errorcode)
rlm@1	1202 {
rlm@1	1203 HandleCallbackError(L);
rlm@1	1204 //int uid = iter->first;
rlm@1	1205 //HandleCallbackError(L,info,uid,true);
rlm@1	1206 }
rlm@1	1207 break;
rlm@1	1208 }
rlm@1	1209 else
rlm@1	1210 {
rlm@1	1211 lua_pop(L, 1);
rlm@1	1212 }
rlm@1	1213 }
rlm@1	1214 lua_settop(L, 0);
rlm@1	1215 }
rlm@1	1216 }
rlm@1	1217 // ++iter;
rlm@1	1218 // }
rlm@1	1219 }
rlm@1	1220
rlm@1	1221 void CallRegisteredLuaMemHook(unsigned int address, int size, unsigned int value, LuaMemHookType hookType)
rlm@1	1222 {
rlm@1	1223 // performance critical! (called VERY frequently)
rlm@1	1224 // I suggest timing a large number of calls to this function in Release if you change anything in here,
rlm@1	1225 // before and after, because even the most innocent change can make it become 30% to 400% slower.
rlm@1	1226 // a good amount to test is: 100000000 calls with no hook set, and another 100000000 with a hook set.
rlm@1	1227 // (on my system that consistently took 200 ms total in the former case and 350 ms total in the latter
rlm@1	1228 // case)
rlm@1	1229 if (hookedRegions[hookType].NotEmpty())
rlm@1	1230 {
rlm@1	1231 //if((hookType <= LUAMEMHOOK_EXEC) && (address >= 0xE00000))
rlm@1	1232 // address \|= 0xFF0000; // account for mirroring of RAM
rlm@1	1233 if (hookedRegions[hookType].Contains(address, size))
rlm@1	1234 CallRegisteredLuaMemHook_LuaMatch(address, size, value, hookType); // something has hooked this
rlm@1	1235 // specific address
rlm@1	1236 }
rlm@1	1237 }
rlm@1	1238
rlm@1	1239 static int memory_registerHook(lua_State *L, LuaMemHookType hookType, int defaultSize)
rlm@1	1240 {
rlm@1	1241 // get first argument: address
rlm@1	1242 unsigned int addr = luaL_checkinteger(L, 1);
rlm@1	1243 //if((addr & ~0xFFFFFF) == ~0xFFFFFF)
rlm@1	1244 // addr &= 0xFFFFFF;
rlm@1	1245
rlm@1	1246 // get optional second argument: size
rlm@1	1247 int size = defaultSize;
rlm@1	1248 int funcIdx = 2;
rlm@1	1249 if (lua_isnumber(L, 2))
rlm@1	1250 {
rlm@1	1251 size = luaL_checkinteger(L, 2);
rlm@1	1252 if (size < 0)
rlm@1	1253 {
rlm@1	1254 size = -size;
rlm@1	1255 addr -= size;
rlm@1	1256 }
rlm@1	1257 funcIdx++;
rlm@1	1258 }
rlm@1	1259
rlm@1	1260 // check last argument: callback function
rlm@1	1261 bool clearing = lua_isnil(L, funcIdx);
rlm@1	1262 if (!clearing)
rlm@1	1263 luaL_checktype(L, funcIdx, LUA_TFUNCTION);
rlm@1	1264 lua_settop(L, funcIdx);
rlm@1	1265
rlm@1	1266 // get the address-to-callback table for this hook type of the current script
rlm@1	1267 lua_getfield(L, LUA_REGISTRYINDEX, luaMemHookTypeStrings[hookType]);
rlm@1	1268
rlm@1	1269 // count how many callback functions we'll be displacing
rlm@1	1270 int numFuncsAfter = clearing ? 0 : size;
rlm@1	1271 int numFuncsBefore = 0;
rlm@1	1272 for (unsigned int i = addr; i != addr + size; i++)
rlm@1	1273 {
rlm@1	1274 lua_rawgeti(L, -1, i);
rlm@1	1275 if (lua_isfunction(L, -1))
rlm@1	1276 numFuncsBefore++;
rlm@1	1277 lua_pop(L, 1);
rlm@1	1278 }
rlm@1	1279
rlm@1	1280 // put the callback function in the address slots
rlm@1	1281 for (unsigned int i = addr; i != addr + size; i++)
rlm@1	1282 {
rlm@1	1283 lua_pushvalue(L, -2);
rlm@1	1284 lua_rawseti(L, -2, i);
rlm@1	1285 }
rlm@1	1286
rlm@1	1287 // adjust the count of active hooks
rlm@1	1288 //LuaContextInfo& info = GetCurrentInfo();
rlm@1	1289 /info./ numMemHooks += numFuncsAfter - numFuncsBefore;
rlm@1	1290
rlm@1	1291 // re-cache regions of hooked memory across all scripts
rlm@1	1292 CalculateMemHookRegions(hookType);
rlm@1	1293
rlm@1	1294 //StopScriptIfFinished(luaStateToUIDMap[L]);
rlm@1	1295 return 0;
rlm@1	1296 }
rlm@1	1297
rlm@1	1298 LuaMemHookType MatchHookTypeToCPU(lua_State *L, LuaMemHookType hookType)
rlm@1	1299 {
rlm@1	1300 int cpuID = 0;
rlm@1	1301
rlm@1	1302 int cpunameIndex = 0;
rlm@1	1303 if (lua_type(L, 2) == LUA_TSTRING)
rlm@1	1304 cpunameIndex = 2;
rlm@1	1305 else if (lua_type(L, 3) == LUA_TSTRING)
rlm@1	1306 cpunameIndex = 3;
rlm@1	1307
rlm@1	1308 if (cpunameIndex)
rlm@1	1309 {
rlm@1	1310 const char *cpuName = lua_tostring(L, cpunameIndex);
rlm@1	1311 if (!stricmp(cpuName, "sub"))
rlm@1	1312 cpuID = 1;
rlm@1	1313 lua_remove(L, cpunameIndex);
rlm@1	1314 }
rlm@1	1315
rlm@1	1316 switch (cpuID)
rlm@1	1317 {
rlm@1	1318 case 0:
rlm@1	1319 return hookType;
rlm@1	1320
rlm@1	1321 case 1:
rlm@1	1322 switch (hookType)
rlm@1	1323 {
rlm@1	1324 case LUAMEMHOOK_WRITE:
rlm@1	1325 return LUAMEMHOOK_WRITE_SUB;
rlm@1	1326 case LUAMEMHOOK_READ:
rlm@1	1327 return LUAMEMHOOK_READ_SUB;
rlm@1	1328 case LUAMEMHOOK_EXEC:
rlm@1	1329 return LUAMEMHOOK_EXEC_SUB;
rlm@1	1330 }
rlm@1	1331 }
rlm@1	1332 return hookType;
rlm@1	1333 }
rlm@1	1334
rlm@1	1335 static int memory_registerwrite(lua_State *L)
rlm@1	1336 {
rlm@1	1337 return memory_registerHook(L, MatchHookTypeToCPU(L, LUAMEMHOOK_WRITE), 1);
rlm@1	1338 }
rlm@1	1339
rlm@1	1340 static int memory_registerread(lua_State *L)
rlm@1	1341 {
rlm@1	1342 return memory_registerHook(L, MatchHookTypeToCPU(L, LUAMEMHOOK_READ), 1);
rlm@1	1343 }
rlm@1	1344
rlm@1	1345 static int memory_registerexec(lua_State *L)
rlm@1	1346 {
rlm@1	1347 return memory_registerHook(L, MatchHookTypeToCPU(L, LUAMEMHOOK_EXEC), 1);
rlm@1	1348 }
rlm@1	1349
rlm@1	1350 //int vba.lagcount
rlm@1	1351 //
rlm@1	1352
rlm@1	1353 //Returns the lagcounter variable
rlm@1	1354 static int vba_getlagcount(lua_State *L)
rlm@1	1355 {
rlm@1	1356 lua_pushinteger(L, systemCounters.lagCount);
rlm@1	1357 return 1;
rlm@1	1358 }
rlm@1	1359
rlm@1	1360 //int vba.lagged
rlm@1	1361 //
rlm@1	1362 //Returns true if the current frame is a lag frame
rlm@1	1363 static int vba_lagged(lua_State *L)
rlm@1	1364 {
rlm@1	1365 lua_pushboolean(L, systemCounters.laggedLast);
rlm@1	1366 return 1;
rlm@1	1367 }
rlm@1	1368
rlm@1	1369 // boolean vba.emulating()
rlm@1	1370 int vba_emulating(lua_State *L)
rlm@1	1371 {
rlm@1	1372 lua_pushboolean(L, systemIsEmulating());
rlm@1	1373 return 1;
rlm@1	1374 }
rlm@1	1375
rlm@1	1376 int movie_isactive(lua_State *L)
rlm@1	1377 {
rlm@1	1378 lua_pushboolean(L, VBAMovieActive());
rlm@1	1379 return 1;
rlm@1	1380 }
rlm@1	1381
rlm@1	1382 int movie_isrecording(lua_State *L)
rlm@1	1383 {
rlm@1	1384 lua_pushboolean(L, VBAMovieRecording());
rlm@1	1385 return 1;
rlm@1	1386 }
rlm@1	1387
rlm@1	1388 int movie_isplaying(lua_State *L)
rlm@1	1389 {
rlm@1	1390 lua_pushboolean(L, VBAMoviePlaying());
rlm@1	1391 return 1;
rlm@1	1392 }
rlm@1	1393
rlm@1	1394 int movie_getlength(lua_State *L)
rlm@1	1395 {
rlm@1	1396 if (VBAMovieActive())
rlm@1	1397 lua_pushinteger(L, VBAMovieGetLength());
rlm@1	1398 else
rlm@1	1399 lua_pushinteger(L, 0);
rlm@1	1400 return 1;
rlm@1	1401 }
rlm@1	1402
rlm@1	1403 static int memory_readbyte(lua_State *L)
rlm@1	1404 {
rlm@1	1405 u32 addr;
rlm@1	1406 u8 val;
rlm@1	1407
rlm@1	1408 addr = luaL_checkinteger(L, 1);
rlm@1	1409 if (systemIsRunningGBA())
rlm@1	1410 {
rlm@1	1411 val = CPUReadByteQuick(addr);
rlm@1	1412 }
rlm@1	1413 else
rlm@1	1414 {
rlm@1	1415 val = gbReadMemoryQuick8(addr);
rlm@1	1416 }
rlm@1	1417
rlm@1	1418 lua_pushinteger(L, val);
rlm@1	1419 return 1;
rlm@1	1420 }
rlm@1	1421
rlm@1	1422 static int memory_readbytesigned(lua_State *L)
rlm@1	1423 {
rlm@1	1424 u32 addr;
rlm@1	1425 s8 val;
rlm@1	1426
rlm@1	1427 addr = luaL_checkinteger(L, 1);
rlm@1	1428 if (systemIsRunningGBA())
rlm@1	1429 {
rlm@1	1430 val = (s8) CPUReadByteQuick(addr);
rlm@1	1431 }
rlm@1	1432 else
rlm@1	1433 {
rlm@1	1434 val = (s8) gbReadMemoryQuick8(addr);
rlm@1	1435 }
rlm@1	1436
rlm@1	1437 lua_pushinteger(L, val);
rlm@1	1438 return 1;
rlm@1	1439 }
rlm@1	1440
rlm@1	1441 static int memory_readword(lua_State *L)
rlm@1	1442 {
rlm@1	1443 u32 addr;
rlm@1	1444 u16 val;
rlm@1	1445
rlm@1	1446 addr = luaL_checkinteger(L, 1);
rlm@1	1447 if (systemIsRunningGBA())
rlm@1	1448 {
rlm@1	1449 val = CPUReadHalfWordQuick(addr);
rlm@1	1450 }
rlm@1	1451 else
rlm@1	1452 {
rlm@1	1453 val = gbReadMemoryQuick16(addr & 0x0000FFFF);
rlm@1	1454 }
rlm@1	1455
rlm@1	1456 lua_pushinteger(L, val);
rlm@1	1457 return 1;
rlm@1	1458 }
rlm@1	1459
rlm@1	1460 static int memory_readwordsigned(lua_State *L)
rlm@1	1461 {
rlm@1	1462 u32 addr;
rlm@1	1463 s16 val;
rlm@1	1464
rlm@1	1465 addr = luaL_checkinteger(L, 1);
rlm@1	1466 if (systemIsRunningGBA())
rlm@1	1467 {
rlm@1	1468 val = (s16) CPUReadHalfWordQuick(addr);
rlm@1	1469 }
rlm@1	1470 else
rlm@1	1471 {
rlm@1	1472 val = (s16) gbReadMemoryQuick16(addr);
rlm@1	1473 }
rlm@1	1474
rlm@1	1475 lua_pushinteger(L, val);
rlm@1	1476 return 1;
rlm@1	1477 }
rlm@1	1478
rlm@1	1479 static int memory_readdword(lua_State *L)
rlm@1	1480 {
rlm@1	1481 u32 addr;
rlm@1	1482 u32 val;
rlm@1	1483
rlm@1	1484 addr = luaL_checkinteger(L, 1);
rlm@1	1485 if (systemIsRunningGBA())
rlm@1	1486 {
rlm@1	1487 val = CPUReadMemoryQuick(addr);
rlm@1	1488 }
rlm@1	1489 else
rlm@1	1490 {
rlm@1	1491 val = gbReadMemoryQuick32(addr & 0x0000FFFF);
rlm@1	1492 }
rlm@1	1493
rlm@1	1494 // lua_pushinteger doesn't work properly for 32bit system, does it?
rlm@1	1495 if (val >= 0x80000000 && sizeof(int) <= 4)
rlm@1	1496 lua_pushnumber(L, val);
rlm@1	1497 else
rlm@1	1498 lua_pushinteger(L, val);
rlm@1	1499 return 1;
rlm@1	1500 }
rlm@1	1501
rlm@1	1502 static int memory_readdwordsigned(lua_State *L)
rlm@1	1503 {
rlm@1	1504 u32 addr;
rlm@1	1505 s32 val;
rlm@1	1506
rlm@1	1507 addr = luaL_checkinteger(L, 1);
rlm@1	1508 if (systemIsRunningGBA())
rlm@1	1509 {
rlm@1	1510 val = (s32) CPUReadMemoryQuick(addr);
rlm@1	1511 }
rlm@1	1512 else
rlm@1	1513 {
rlm@1	1514 val = (s32) gbReadMemoryQuick32(addr);
rlm@1	1515 }
rlm@1	1516
rlm@1	1517 lua_pushinteger(L, val);
rlm@1	1518 return 1;
rlm@1	1519 }
rlm@1	1520
rlm@1	1521 static int memory_readbyterange(lua_State *L)
rlm@1	1522 {
rlm@1	1523 uint32 address = luaL_checkinteger(L, 1);
rlm@1	1524 int length = luaL_checkinteger(L, 2);
rlm@1	1525
rlm@1	1526 if (length < 0)
rlm@1	1527 {
rlm@1	1528 address += length;
rlm@1	1529 length = -length;
rlm@1	1530 }
rlm@1	1531
rlm@1	1532 // push the array
rlm@1	1533 lua_createtable(L, abs(length), 0);
rlm@1	1534
rlm@1	1535 // put all the values into the (1-based) array
rlm@1	1536 for (int a = address, n = 1; n <= length; a++, n++)
rlm@1	1537 {
rlm@1	1538 unsigned char value;
rlm@1	1539
rlm@1	1540 if (systemIsRunningGBA())
rlm@1	1541 {
rlm@1	1542 value = CPUReadByteQuick(a);
rlm@1	1543 }
rlm@1	1544 else
rlm@1	1545 {
rlm@1	1546 value = gbReadMemoryQuick8(a);
rlm@1	1547 }
rlm@1	1548
rlm@1	1549 lua_pushinteger(L, value);
rlm@1	1550 lua_rawseti(L, -2, n);
rlm@1	1551 }
rlm@1	1552
rlm@1	1553 return 1;
rlm@1	1554 }
rlm@1	1555
rlm@1	1556 static int memory_writebyte(lua_State *L)
rlm@1	1557 {
rlm@1	1558 u32 addr;
rlm@1	1559 int val;
rlm@1	1560
rlm@1	1561 addr = luaL_checkinteger(L, 1);
rlm@1	1562 val = luaL_checkinteger(L, 2);
rlm@1	1563 if (systemIsRunningGBA())
rlm@1	1564 {
rlm@1	1565 CPUWriteByteQuick(addr, val);
rlm@1	1566 }
rlm@1	1567 else
rlm@1	1568 {
rlm@1	1569 gbWriteMemoryQuick8(addr, val);
rlm@1	1570 }
rlm@1	1571
rlm@1	1572 CallRegisteredLuaMemHook(addr, 1, val, LUAMEMHOOK_WRITE);
rlm@1	1573 return 0;
rlm@1	1574 }
rlm@1	1575
rlm@1	1576 static int memory_writeword(lua_State *L)
rlm@1	1577 {
rlm@1	1578 u32 addr;
rlm@1	1579 int val;
rlm@1	1580
rlm@1	1581 addr = luaL_checkinteger(L, 1);
rlm@1	1582 val = luaL_checkinteger(L, 2);
rlm@1	1583 if (systemIsRunningGBA())
rlm@1	1584 {
rlm@1	1585 CPUWriteHalfWordQuick(addr, val);
rlm@1	1586 }
rlm@1	1587 else
rlm@1	1588 {
rlm@1	1589 gbWriteMemoryQuick16(addr, val);
rlm@1	1590 }
rlm@1	1591
rlm@1	1592 CallRegisteredLuaMemHook(addr, 2, val, LUAMEMHOOK_WRITE);
rlm@1	1593 return 0;
rlm@1	1594 }
rlm@1	1595
rlm@1	1596 static int memory_writedword(lua_State *L)
rlm@1	1597 {
rlm@1	1598 u32 addr;
rlm@1	1599 int val;
rlm@1	1600
rlm@1	1601 addr = luaL_checkinteger(L, 1);
rlm@1	1602 val = luaL_checkinteger(L, 2);
rlm@1	1603 if (systemIsRunningGBA())
rlm@1	1604 {
rlm@1	1605 CPUWriteMemoryQuick(addr, val);
rlm@1	1606 }
rlm@1	1607 else
rlm@1	1608 {
rlm@1	1609 gbWriteMemoryQuick32(addr, val);
rlm@1	1610 }
rlm@1	1611
rlm@1	1612 CallRegisteredLuaMemHook(addr, 4, val, LUAMEMHOOK_WRITE);
rlm@1	1613 return 0;
rlm@1	1614 }
rlm@1	1615
rlm@1	1616 static int memory_gbromreadbyte(lua_State *L)
rlm@1	1617 {
rlm@1	1618 u32 addr;
rlm@1	1619 u8 val;
rlm@1	1620
rlm@1	1621 addr = luaL_checkinteger(L, 1);
rlm@1	1622 if (systemIsRunningGBA())
rlm@1	1623 {
rlm@1	1624 lua_pushnil(L);
rlm@1	1625 return 1;
rlm@1	1626 }
rlm@1	1627 else
rlm@1	1628 {
rlm@1	1629 val = gbReadROMQuick8(addr);
rlm@1	1630 }
rlm@1	1631
rlm@1	1632 lua_pushinteger(L, val);
rlm@1	1633 return 1;
rlm@1	1634 }
rlm@1	1635
rlm@1	1636 static int memory_gbromreadbytesigned(lua_State *L)
rlm@1	1637 {
rlm@1	1638 u32 addr;
rlm@1	1639 s8 val;
rlm@1	1640
rlm@1	1641 addr = luaL_checkinteger(L, 1);
rlm@1	1642 if (systemIsRunningGBA())
rlm@1	1643 {
rlm@1	1644 lua_pushnil(L);
rlm@1	1645 return 1;
rlm@1	1646 }
rlm@1	1647 else
rlm@1	1648 {
rlm@1	1649 val = (s8) gbReadROMQuick8(addr);
rlm@1	1650 }
rlm@1	1651
rlm@1	1652 lua_pushinteger(L, val);
rlm@1	1653 return 1;
rlm@1	1654 }
rlm@1	1655
rlm@1	1656 static int memory_gbromreadword(lua_State *L)
rlm@1	1657 {
rlm@1	1658 u32 addr;
rlm@1	1659 u16 val;
rlm@1	1660
rlm@1	1661 addr = luaL_checkinteger(L, 1);
rlm@1	1662 if (systemIsRunningGBA())
rlm@1	1663 {
rlm@1	1664 lua_pushnil(L);
rlm@1	1665 return 1;
rlm@1	1666 }
rlm@1	1667 else
rlm@1	1668 {
rlm@1	1669 val = gbReadROMQuick16(addr);
rlm@1	1670 }
rlm@1	1671
rlm@1	1672 lua_pushinteger(L, val);
rlm@1	1673 return 1;
rlm@1	1674 }
rlm@1	1675
rlm@1	1676 static int memory_gbromreadwordsigned(lua_State *L)
rlm@1	1677 {
rlm@1	1678 u32 addr;
rlm@1	1679 s16 val;
rlm@1	1680
rlm@1	1681 addr = luaL_checkinteger(L, 1);
rlm@1	1682 if (systemIsRunningGBA())
rlm@1	1683 {
rlm@1	1684 lua_pushnil(L);
rlm@1	1685 return 1;
rlm@1	1686 }
rlm@1	1687 else
rlm@1	1688 {
rlm@1	1689 val = (s16) gbReadROMQuick16(addr);
rlm@1	1690 }
rlm@1	1691
rlm@1	1692 lua_pushinteger(L, val);
rlm@1	1693 return 1;
rlm@1	1694 }
rlm@1	1695
rlm@1	1696 static int memory_gbromreaddword(lua_State *L)
rlm@1	1697 {
rlm@1	1698 u32 addr;
rlm@1	1699 u32 val;
rlm@1	1700
rlm@1	1701 addr = luaL_checkinteger(L, 1);
rlm@1	1702 if (systemIsRunningGBA())
rlm@1	1703 {
rlm@1	1704 lua_pushnil(L);
rlm@1	1705 return 1;
rlm@1	1706 }
rlm@1	1707 else
rlm@1	1708 {
rlm@1	1709 val = gbReadROMQuick32(addr);
rlm@1	1710 }
rlm@1	1711
rlm@1	1712 // lua_pushinteger doesn't work properly for 32bit system, does it?
rlm@1	1713 if (val >= 0x80000000 && sizeof(int) <= 4)
rlm@1	1714 lua_pushnumber(L, val);
rlm@1	1715 else
rlm@1	1716 lua_pushinteger(L, val);
rlm@1	1717 return 1;
rlm@1	1718 }
rlm@1	1719
rlm@1	1720 static int memory_gbromreaddwordsigned(lua_State *L)
rlm@1	1721 {
rlm@1	1722 u32 addr;
rlm@1	1723 s32 val;
rlm@1	1724
rlm@1	1725 addr = luaL_checkinteger(L, 1);
rlm@1	1726 if (systemIsRunningGBA())
rlm@1	1727 {
rlm@1	1728 lua_pushnil(L);
rlm@1	1729 return 1;
rlm@1	1730 }
rlm@1	1731 else
rlm@1	1732 {
rlm@1	1733 val = (s32) gbReadROMQuick32(addr);
rlm@1	1734 }
rlm@1	1735
rlm@1	1736 lua_pushinteger(L, val);
rlm@1	1737 return 1;
rlm@1	1738 }
rlm@1	1739
rlm@1	1740 static int memory_gbromreadbyterange(lua_State *L)
rlm@1	1741 {
rlm@1	1742 uint32 address = luaL_checkinteger(L, 1);
rlm@1	1743 int length = luaL_checkinteger(L, 2);
rlm@1	1744
rlm@1	1745 if (length < 0)
rlm@1	1746 {
rlm@1	1747 address += length;
rlm@1	1748 length = -length;
rlm@1	1749 }
rlm@1	1750
rlm@1	1751 // push the array
rlm@1	1752 lua_createtable(L, abs(length), 0);
rlm@1	1753
rlm@1	1754 // put all the values into the (1-based) array
rlm@1	1755 for (int a = address, n = 1; n <= length; a++, n++)
rlm@1	1756 {
rlm@1	1757 unsigned char value;
rlm@1	1758
rlm@1	1759 if (systemIsRunningGBA())
rlm@1	1760 {
rlm@1	1761 lua_pushnil(L);
rlm@1	1762 return 1;
rlm@1	1763 }
rlm@1	1764 else
rlm@1	1765 {
rlm@1	1766 value = gbReadROMQuick8(a);
rlm@1	1767 }
rlm@1	1768
rlm@1	1769 lua_pushinteger(L, value);
rlm@1	1770 lua_rawseti(L, -2, n);
rlm@1	1771 }
rlm@1	1772
rlm@1	1773 return 1;
rlm@1	1774 }
rlm@1	1775
rlm@1	1776 // table joypad.get(int which = 1)
rlm@1	1777 //
rlm@1	1778 // Reads the joypads as inputted by the user.
rlm@1	1779 static int joy_get_internal(lua_State *L, bool reportUp, bool reportDown)
rlm@1	1780 {
rlm@1	1781 // Reads the joypads as inputted by the user
rlm@1	1782 int which = luaL_checkinteger(L, 1);
rlm@1	1783
rlm@1	1784 if (which < 0 \|\| which > 4)
rlm@1	1785 {
rlm@1	1786 luaL_error(L, "Invalid input port (valid range 0-4, specified %d)", which);
rlm@1	1787 }
rlm@1	1788
rlm@1	1789 uint32 buttons = systemGetOriginalJoypad(which - 1, false);
rlm@1	1790
rlm@1	1791 lua_newtable(L);
rlm@1	1792
rlm@1	1793 int i;
rlm@1	1794 for (i = 0; i < 10; i++)
rlm@1	1795 {
rlm@1	1796 bool pressed = (buttons & (1 << i)) != 0;
rlm@1	1797 if ((pressed && reportDown) \|\| (!pressed && reportUp))
rlm@1	1798 {
rlm@1	1799 lua_pushboolean(L, pressed);
rlm@1	1800 lua_setfield(L, -2, button_mappings[i]);
rlm@1	1801 }
rlm@1	1802 }
rlm@1	1803
rlm@1	1804 return 1;
rlm@1	1805 }
rlm@1	1806
rlm@1	1807 // joypad.get(which)
rlm@1	1808 // returns a table of every game button,
rlm@1	1809 // true meaning currently-held and false meaning not-currently-held
rlm@1	1810 // (as of last frame boundary)
rlm@1	1811 // this WILL read input from a currently-playing movie
rlm@1	1812 static int joypad_get(lua_State *L)
rlm@1	1813 {
rlm@1	1814 return joy_get_internal(L, true, true);
rlm@1	1815 }
rlm@1	1816
rlm@1	1817 // joypad.getdown(which)
rlm@1	1818 // returns a table of every game button that is currently held
rlm@1	1819 static int joypad_getdown(lua_State *L)
rlm@1	1820 {
rlm@1	1821 return joy_get_internal(L, false, true);
rlm@1	1822 }
rlm@1	1823
rlm@1	1824 // joypad.getup(which)
rlm@1	1825 // returns a table of every game button that is not currently held
rlm@1	1826 static int joypad_getup(lua_State *L)
rlm@1	1827 {
rlm@1	1828 return joy_get_internal(L, true, false);
rlm@1	1829 }
rlm@1	1830
rlm@1	1831 // joypad.set(int which, table buttons)
rlm@1	1832 //
rlm@1	1833 // Sets the given buttons to be pressed during the next
rlm@1	1834 // frame advance. The table should have the right
rlm@1	1835
rlm@1	1836 // keys (no pun intended) set.
rlm@1	1837 static int joypad_set(lua_State *L)
rlm@1	1838 {
rlm@1	1839 // Which joypad we're tampering with
rlm@1	1840 int which = luaL_checkinteger(L, 1);
rlm@1	1841 if (which < 0 \|\| which > 4)
rlm@1	1842 {
rlm@1	1843 luaL_error(L, "Invalid output port (valid range 0-4, specified %d)", which);
rlm@1	1844 }
rlm@1	1845
rlm@1	1846 if (which == 0)
rlm@1	1847 which = systemGetDefaultJoypad();
rlm@1	1848
rlm@1	1849 // And the table of buttons.
rlm@1	1850 luaL_checktype(L, 2, LUA_TTABLE);
rlm@1	1851
rlm@1	1852 // Set up for taking control of the indicated controller
rlm@1	1853 lua_joypads_used \|= 1 << (which - 1);
rlm@1	1854 lua_joypads[which - 1] = 0;
rlm@1	1855
rlm@1	1856 for (int i = 0; i < 10; i++)
rlm@1	1857 {
rlm@1	1858 const char *name = button_mappings[i];
rlm@1	1859 lua_getfield(L, 2, name);
rlm@1	1860 if (!lua_isnil(L, -1))
rlm@1	1861 {
rlm@1	1862 bool pressed = lua_toboolean(L, -1) != 0;
rlm@1	1863 if (pressed)
rlm@1	1864 lua_joypads[which - 1] \|= 1 << i;
rlm@1	1865 else
rlm@1	1866 lua_joypads[which - 1] &= ~(1 << i);
rlm@1	1867 }
rlm@1	1868 lua_pop(L, 1);
rlm@1	1869 }
rlm@1	1870
rlm@1	1871 return 0;
rlm@1	1872 }
rlm@1	1873
rlm@1	1874 // Helper function to convert a savestate object to the filename it represents.
rlm@1	1875 static const char savestateobj2filename(lua_State L, int offset)
rlm@1	1876 {
rlm@1	1877 // First we get the metatable of the indicated object
rlm@1	1878 int result = lua_getmetatable(L, offset);
rlm@1	1879
rlm@1	1880 if (!result)
rlm@1	1881 luaL_error(L, "object not a savestate object");
rlm@1	1882
rlm@1	1883 // Also check that the type entry is set
rlm@1	1884 lua_getfield(L, -1, "__metatable");
rlm@1	1885 if (strcmp(lua_tostring(L, -1), "vba Savestate") != 0)
rlm@1	1886 luaL_error(L, "object not a savestate object");
rlm@1	1887 lua_pop(L, 1);
rlm@1	1888
rlm@1	1889 // Now, get the field we want
rlm@1	1890 lua_getfield(L, -1, "filename");
rlm@1	1891
rlm@1	1892 // Return it
rlm@1	1893 return lua_tostring(L, -1);
rlm@1	1894 }
rlm@1	1895
rlm@1	1896 // Helper function for garbage collection.
rlm@1	1897 static int savestate_gc(lua_State *L)
rlm@1	1898 {
rlm@1	1899 // The object we're collecting is on top of the stack
rlm@1	1900 lua_getmetatable(L, 1);
rlm@1	1901
rlm@1	1902 // Get the filename
rlm@1	1903 const char *filename;
rlm@1	1904 lua_getfield(L, -1, "filename");
rlm@1	1905 filename = lua_tostring(L, -1);
rlm@1	1906
rlm@1	1907 // Delete the file
rlm@1	1908 remove(filename);
rlm@1	1909
rlm@1	1910 // We exit, and the garbage collector takes care of the rest.
rlm@1	1911 // Edit: Visual Studio needs a return value anyway, so returns 0.
rlm@1	1912 return 0;
rlm@1	1913 }
rlm@1	1914
rlm@1	1915 // object savestate.create(int which = nil)
rlm@1	1916 //
rlm@1	1917 // Creates an object used for savestates.
rlm@1	1918 // The object can be associated with a player-accessible savestate
rlm@1	1919
rlm@1	1920 // ("which" between 1 and 12) or not (which == nil).
rlm@1	1921 static int savestate_create(lua_State *L)
rlm@1	1922 {
rlm@1	1923 int which = -1;
rlm@1	1924 if (lua_gettop(L) >= 1)
rlm@1	1925 {
rlm@1	1926 which = luaL_checkinteger(L, 1);
rlm@1	1927 if (which < 1 \|\| which > 12)
rlm@1	1928 {
rlm@1	1929 luaL_error(L, "invalid player's savestate %d", which);
rlm@1	1930 }
rlm@1	1931 }
rlm@1	1932
rlm@1	1933 char stateName[2048];
rlm@1	1934
rlm@1	1935 if (which > 0)
rlm@1	1936 {
rlm@1	1937 // Find an appropriate filename. This is OS specific, unfortunately.
rlm@1	1938 #if (defined(WIN32) && !defined(SDL))
rlm@1	1939 CString stateName = winGetSavestateFilename(theApp.gameFilename, which);
rlm@1	1940 #else
rlm@1	1941 extern char saveDir[2048];
rlm@1	1942 extern char filename[2048];
rlm@1	1943 extern char sdlGetFilename(char name);
rlm@1	1944
rlm@1	1945 if (saveDir[0])
rlm@1	1946 sprintf(stateName, "%s/%s%d.sgm", saveDir, sdlGetFilename(filename), which);
rlm@1	1947 else
rlm@1	1948 sprintf(stateName, "%s%d.sgm", filename, which);
rlm@1	1949 #endif
rlm@1	1950 }
rlm@1	1951 else
rlm@1	1952 {
rlm@1	1953 char *stateNameTemp = tempnam(NULL, "snlua");
rlm@1	1954 strcpy(stateName, stateNameTemp);
rlm@1	1955 if (stateNameTemp)
rlm@1	1956 free(stateNameTemp);
rlm@1	1957 }
rlm@1	1958
rlm@1	1959 // Our "object". We don't care about the type, we just need the memory and GC services.
rlm@1	1960 lua_newuserdata(L, 1);
rlm@1	1961
rlm@1	1962 // The metatable we use, protected from Lua and contains garbage collection info and stuff.
rlm@1	1963 lua_newtable(L);
rlm@1	1964
rlm@1	1965 // First, we must protect it
rlm@1	1966 lua_pushstring(L, "vba Savestate");
rlm@1	1967 lua_setfield(L, -2, "__metatable");
rlm@1	1968
rlm@1	1969 // Now we need to save the file itself.
rlm@1	1970 lua_pushstring(L, stateName);
rlm@1	1971 lua_setfield(L, -2, "filename");
rlm@1	1972
rlm@1	1973 // If it's an anonymous savestate, we must delete the file from disk should it be gargage collected
rlm@1	1974 if (which < 0)
rlm@1	1975 {
rlm@1	1976 lua_pushcfunction(L, savestate_gc);
rlm@1	1977 lua_setfield(L, -2, "__gc");
rlm@1	1978 }
rlm@1	1979
rlm@1	1980 // Set the metatable
rlm@1	1981 lua_setmetatable(L, -2);
rlm@1	1982
rlm@1	1983 // Awesome. Return the object
rlm@1	1984 return 1;
rlm@1	1985 }
rlm@1	1986
rlm@1	1987 // savestate.save(object state)
rlm@1	1988 //
rlm@1	1989
rlm@1	1990 // Saves a state to the given object.
rlm@1	1991 static int savestate_save(lua_State *L)
rlm@1	1992 {
rlm@1	1993 const char *filename = savestateobj2filename(L, 1);
rlm@1	1994
rlm@1	1995 // printf("saving %s\n", filename);
rlm@1	1996 // Save states are very expensive. They take time.
rlm@1	1997 numTries--;
rlm@1	1998
rlm@1	1999 bool8 retvalue = theEmulator.emuWriteState ? theEmulator.emuWriteState(filename) : false;
rlm@1	2000 if (!retvalue)
rlm@1	2001 {
rlm@1	2002 // Uh oh
rlm@1	2003 luaL_error(L, "savestate failed");
rlm@1	2004 }
rlm@1	2005
rlm@1	2006 return 0;
rlm@1	2007 }
rlm@1	2008
rlm@1	2009 // savestate.load(object state)
rlm@1	2010 //
rlm@1	2011
rlm@1	2012 // Loads the given state
rlm@1	2013 static int savestate_load(lua_State *L)
rlm@1	2014 {
rlm@1	2015 const char *filename = savestateobj2filename(L, 1);
rlm@1	2016
rlm@1	2017 numTries--;
rlm@1	2018
rlm@1	2019 // printf("loading %s\n", filename);
rlm@1	2020 bool8 retvalue = theEmulator.emuReadState ? theEmulator.emuReadState(filename) : false;
rlm@1	2021 if (!retvalue)
rlm@1	2022 {
rlm@1	2023 // Uh oh
rlm@1	2024 luaL_error(L, "loadstate failed");
rlm@1	2025 }
rlm@1	2026
rlm@1	2027 return 0;
rlm@1	2028 }
rlm@1	2029
rlm@1	2030 // int vba.framecount()
rlm@1	2031 //
rlm@1	2032
rlm@1	2033 // Gets the frame counter for the movie, or the number of frames since last reset.
rlm@1	2034 int vba_framecount(lua_State *L)
rlm@1	2035 {
rlm@1	2036 if (!VBAMovieActive())
rlm@1	2037 {
rlm@1	2038 lua_pushinteger(L, systemCounters.frameCount);
rlm@1	2039 }
rlm@1	2040 else
rlm@1	2041 {
rlm@1	2042 lua_pushinteger(L, VBAMovieGetFrameCounter());
rlm@1	2043 }
rlm@1	2044
rlm@1	2045 return 1;
rlm@1	2046 }
rlm@1	2047
rlm@1	2048 //string movie.getauthor
rlm@1	2049 //
rlm@1	2050
rlm@1	2051 // returns author info field of .vbm file
rlm@1	2052 int movie_getauthor(lua_State *L)
rlm@1	2053 {
rlm@1	2054 if (!VBAMovieActive())
rlm@1	2055 {
rlm@1	2056 //lua_pushnil(L);
rlm@1	2057 lua_pushstring(L, "");
rlm@1	2058 return 1;
rlm@1	2059 }
rlm@1	2060
rlm@1	2061 lua_pushstring(L, VBAMovieGetAuthorInfo().c_str());
rlm@1	2062 return 1;
rlm@1	2063 }
rlm@1	2064
rlm@1	2065 //string movie.filename
rlm@1	2066 int movie_getfilename(lua_State *L)
rlm@1	2067 {
rlm@1	2068 if (!VBAMovieActive())
rlm@1	2069 {
rlm@1	2070 //lua_pushnil(L);
rlm@1	2071 lua_pushstring(L, "");
rlm@1	2072 return 1;
rlm@1	2073 }
rlm@1	2074
rlm@1	2075 lua_pushstring(L, VBAMovieGetFilename().c_str());
rlm@1	2076 return 1;
rlm@1	2077 }
rlm@1	2078
rlm@1	2079 // string movie.mode()
rlm@1	2080 //
rlm@1	2081
rlm@1	2082 // "record", "playback" or nil
rlm@1	2083 int movie_getmode(lua_State *L)
rlm@1	2084 {
rlm@1	2085 assert(!VBAMovieLoading());
rlm@1	2086 if (!VBAMovieActive())
rlm@1	2087 {
rlm@1	2088 lua_pushnil(L);
rlm@1	2089 return 1;
rlm@1	2090 }
rlm@1	2091
rlm@1	2092 if (VBAMovieRecording())
rlm@1	2093 lua_pushstring(L, "record");
rlm@1	2094 else
rlm@1	2095 lua_pushstring(L, "playback");
rlm@1	2096 return 1;
rlm@1	2097 }
rlm@1	2098
rlm@1	2099 static int movie_rerecordcount(lua_State *L)
rlm@1	2100 {
rlm@1	2101 if (VBAMovieActive())
rlm@1	2102 lua_pushinteger(L, VBAMovieGetRerecordCount());
rlm@1	2103 else
rlm@1	2104 lua_pushinteger(L, 0);
rlm@1	2105 return 1;
rlm@1	2106 }
rlm@1	2107
rlm@1	2108 static int movie_setrerecordcount(lua_State *L)
rlm@1	2109 {
rlm@1	2110 if (VBAMovieActive())
rlm@1	2111 VBAMovieSetRerecordCount(luaL_checkinteger(L, 1));
rlm@1	2112 return 0;
rlm@1	2113 }
rlm@1	2114
rlm@1	2115 static int movie_rerecordcounting(lua_State *L)
rlm@1	2116 {
rlm@1	2117 if (lua_gettop(L) == 0)
rlm@1	2118 luaL_error(L, "no parameters specified");
rlm@1	2119
rlm@1	2120 skipRerecords = lua_toboolean(L, 1);
rlm@1	2121 return 0;
rlm@1	2122 }
rlm@1	2123
rlm@1	2124 // movie.stop()
rlm@1	2125 //
rlm@1	2126
rlm@1	2127 // Stops movie playback/recording. Bombs out if movie is not running.
rlm@1	2128 static int movie_stop(lua_State *L)
rlm@1	2129 {
rlm@1	2130 if (!VBAMovieActive())
rlm@1	2131 luaL_error(L, "no movie");
rlm@1	2132
rlm@1	2133 VBAMovieStop(false);
rlm@1	2134 return 0;
rlm@1	2135 }
rlm@1	2136
rlm@1	2137 #define LUA_SCREEN_WIDTH 256
rlm@1	2138 #define LUA_SCREEN_HEIGHT 239
rlm@1	2139
rlm@1	2140 // Common code by the gui library: make sure the screen array is ready
rlm@1	2141 static void gui_prepare(void)
rlm@1	2142 {
rlm@1	2143 if (!gui_data)
rlm@1	2144 gui_data = (uint8 )malloc(LUA_SCREEN_WIDTH LUA_SCREEN_HEIGHT * 4);
rlm@1	2145 if (!gui_used)
rlm@1	2146 memset(gui_data, 0, LUA_SCREEN_WIDTH * LUA_SCREEN_HEIGHT * 4);
rlm@1	2147 gui_used = true;
rlm@1	2148 }
rlm@1	2149
rlm@1	2150 // pixform for lua graphics
rlm@1	2151 #define BUILD_PIXEL_ARGB8888(A, R, G, B) (((int)(A) << 24) \| ((int)(R) << 16) \| ((int)(G) << 8) \| (int)(B))
rlm@1	2152 #define DECOMPOSE_PIXEL_ARGB8888(PIX, A, R, G, B) \
rlm@1	2153 { \
rlm@1	2154 (A) = ((PIX) >> 24) & 0xff; \
rlm@1	2155 (R) = ((PIX) >> 16) & 0xff; \
rlm@1	2156 (G) = ((PIX) >> 8) & 0xff; \
rlm@1	2157 (B) = (PIX) & 0xff; \
rlm@1	2158 }
rlm@1	2159 #define LUA_BUILD_PIXEL BUILD_PIXEL_ARGB8888
rlm@1	2160 #define LUA_DECOMPOSE_PIXEL DECOMPOSE_PIXEL_ARGB8888
rlm@1	2161 #define LUA_PIXEL_A(PIX) (((PIX) >> 24) & 0xff)
rlm@1	2162 #define LUA_PIXEL_R(PIX) (((PIX) >> 16) & 0xff)
rlm@1	2163 #define LUA_PIXEL_G(PIX) (((PIX) >> 8) & 0xff)
rlm@1	2164 #define LUA_PIXEL_B(PIX) ((PIX) & 0xff)
rlm@1	2165
rlm@1	2166 template<class T>
rlm@1	2167 static void swap(T &one, T &two)
rlm@1	2168 {
rlm@1	2169 T temp = one;
rlm@1	2170 one = two;
rlm@1	2171 two = temp;
rlm@1	2172 }
rlm@1	2173
rlm@1	2174 // write a pixel to buffer
rlm@1	2175 static inline void blend32(uint32 *dstPixel, uint32 colour)
rlm@1	2176 {
rlm@1	2177 uint8 dst = (uint8 )dstPixel;
rlm@1	2178 int a, r, g, b;
rlm@1	2179 LUA_DECOMPOSE_PIXEL(colour, a, r, g, b);
rlm@1	2180
rlm@1	2181 if (a == 255 \|\| dst[3] == 0)
rlm@1	2182 {
rlm@1	2183 // direct copy
rlm@1	2184 (uint32 ) (dst) = colour;
rlm@1	2185 }
rlm@1	2186 else if (a == 0)
rlm@1	2187 {
rlm@1	2188 // do not copy
rlm@1	2189 }
rlm@1	2190 else
rlm@1	2191 {
rlm@1	2192 // alpha-blending
rlm@1	2193 int a_dst = ((255 - a) * dst[3] + 128) / 255;
rlm@1	2194 int a_new = a + a_dst;
rlm@1	2195
rlm@1	2196 dst[0] = (uint8) (((dst[0] * a_dst + b * a) + (a_new / 2)) / a_new);
rlm@1	2197 dst[1] = (uint8) (((dst[1] * a_dst + g * a) + (a_new / 2)) / a_new);
rlm@1	2198 dst[2] = (uint8) (((dst[2] * a_dst + r * a) + (a_new / 2)) / a_new);
rlm@1	2199 dst[3] = (uint8) a_new;
rlm@1	2200 }
rlm@1	2201 }
rlm@1	2202
rlm@1	2203 // check if a pixel is in the lua canvas
rlm@1	2204 static inline bool gui_check_boundary(int x, int y)
rlm@1	2205 {
rlm@1	2206 return !(x < 0 \|\| x >= LUA_SCREEN_WIDTH \|\| y < 0 \|\| y >= LUA_SCREEN_HEIGHT);
rlm@1	2207 }
rlm@1	2208
rlm@1	2209 // check if any part of a box is in the lua canvas
rlm@1	2210 static inline bool gui_checkbox(int x1, int y1, int x2, int y2)
rlm@1	2211 {
rlm@1	2212 if ((x1 < 0 && x2 < 0)
rlm@1	2213 \|\| (x1 >= LUA_SCREEN_WIDTH && x2 >= LUA_SCREEN_WIDTH)
rlm@1	2214 \|\| (y1 < 0 && y2 < 0)
rlm@1	2215 \|\| (y1 >= LUA_SCREEN_HEIGHT && y2 >= LUA_SCREEN_HEIGHT))
rlm@1	2216 return false;
rlm@1	2217 return true;
rlm@1	2218 }
rlm@1	2219
rlm@1	2220 // write a pixel to gui_data (do not check boundaries for speedup)
rlm@1	2221 static inline void gui_drawpixel_fast(int x, int y, uint32 colour)
rlm@1	2222 {
rlm@1	2223 //gui_prepare();
rlm@1	2224 blend32((uint32 ) &gui_data[(y LUA_SCREEN_WIDTH + x) * 4], colour);
rlm@1	2225 }
rlm@1	2226
rlm@1	2227 // write a pixel to gui_data (check boundaries)
rlm@1	2228 static inline void gui_drawpixel_internal(int x, int y, uint32 colour)
rlm@1	2229 {
rlm@1	2230 //gui_prepare();
rlm@1	2231 if (gui_check_boundary(x, y))
rlm@1	2232 gui_drawpixel_fast(x, y, colour);
rlm@1	2233 }
rlm@1	2234
rlm@1	2235 // draw a line on gui_data (checks boundaries)
rlm@1	2236 static void gui_drawline_internal(int x1, int y1, int x2, int y2, bool lastPixel, uint32 colour)
rlm@1	2237 {
rlm@1	2238 //gui_prepare();
rlm@1	2239 // Note: New version of Bresenham's Line Algorithm
rlm@1	2240 //
rlm@1	2241 //
rlm@1	2242 // http://groups.google.co.jp/group/rec.games.roguelike.development/browse_thread/thread/345f4c42c3b25858/29e07a3af3a450e6?show_docid=29e07a3af3a450e6
rlm@1	2243 int swappedx = 0;
rlm@1	2244 int swappedy = 0;
rlm@1	2245
rlm@1	2246 int xtemp = x1 - x2;
rlm@1	2247 int ytemp = y1 - y2;
rlm@1	2248 if (xtemp == 0 && ytemp == 0)
rlm@1	2249 {
rlm@1	2250 gui_drawpixel_internal(x1, y1, colour);
rlm@1	2251 return;
rlm@1	2252 }
rlm@1	2253
rlm@1	2254 if (xtemp < 0)
rlm@1	2255 {
rlm@1	2256 xtemp = -xtemp;
rlm@1	2257 swappedx = 1;
rlm@1	2258 }
rlm@1	2259
rlm@1	2260 if (ytemp < 0)
rlm@1	2261 {
rlm@1	2262 ytemp = -ytemp;
rlm@1	2263 swappedy = 1;
rlm@1	2264 }
rlm@1	2265
rlm@1	2266 int delta_x = xtemp << 1;
rlm@1	2267 int delta_y = ytemp << 1;
rlm@1	2268
rlm@1	2269 signed char ix = x1 > x2 ? 1 : -1;
rlm@1	2270 signed char iy = y1 > y2 ? 1 : -1;
rlm@1	2271
rlm@1	2272 if (lastPixel)
rlm@1	2273 gui_drawpixel_internal(x2, y2, colour);
rlm@1	2274
rlm@1	2275 if (delta_x >= delta_y)
rlm@1	2276 {
rlm@1	2277 int error = delta_y - (delta_x >> 1);
rlm@1	2278
rlm@1	2279 while (x2 != x1)
rlm@1	2280 {
rlm@1	2281 if (error == 0 && !swappedx)
rlm@1	2282 gui_drawpixel_internal(x2 + ix, y2, colour);
rlm@1	2283 if (error >= 0)
rlm@1	2284 {
rlm@1	2285 if (error \|\| (ix > 0))
rlm@1	2286 {
rlm@1	2287 y2 += iy;
rlm@1	2288 error -= delta_x;
rlm@1	2289 }
rlm@1	2290 }
rlm@1	2291
rlm@1	2292 x2 += ix;
rlm@1	2293 gui_drawpixel_internal(x2, y2, colour);
rlm@1	2294 if (error == 0 && swappedx)
rlm@1	2295 gui_drawpixel_internal(x2, y2 + iy, colour);
rlm@1	2296 error += delta_y;
rlm@1	2297 }
rlm@1	2298 }
rlm@1	2299 else
rlm@1	2300 {
rlm@1	2301 int error = delta_x - (delta_y >> 1);
rlm@1	2302
rlm@1	2303 while (y2 != y1)
rlm@1	2304 {
rlm@1	2305 if (error == 0 && !swappedy)
rlm@1	2306 gui_drawpixel_internal(x2, y2 + iy, colour);
rlm@1	2307 if (error >= 0)
rlm@1	2308 {
rlm@1	2309 if (error \|\| (iy > 0))
rlm@1	2310 {
rlm@1	2311 x2 += ix;
rlm@1	2312 error -= delta_y;
rlm@1	2313 }
rlm@1	2314 }
rlm@1	2315
rlm@1	2316 y2 += iy;
rlm@1	2317 gui_drawpixel_internal(x2, y2, colour);
rlm@1	2318 if (error == 0 && swappedy)
rlm@1	2319 gui_drawpixel_internal(x2 + ix, y2, colour);
rlm@1	2320 error += delta_x;
rlm@1	2321 }
rlm@1	2322 }
rlm@1	2323 }
rlm@1	2324
rlm@1	2325 // draw a rect on gui_data
rlm@1	2326 static void gui_drawbox_internal(int x1, int y1, int x2, int y2, uint32 colour)
rlm@1	2327 {
rlm@1	2328 if (x1 > x2)
rlm@1	2329 std::swap(x1, x2);
rlm@1	2330 if (y1 > y2)
rlm@1	2331 std::swap(y1, y2);
rlm@1	2332 if (x1 < 0)
rlm@1	2333 x1 = -1;
rlm@1	2334 if (y1 < 0)
rlm@1	2335 y1 = -1;
rlm@1	2336 if (x2 >= LUA_SCREEN_WIDTH)
rlm@1	2337 x2 = LUA_SCREEN_WIDTH;
rlm@1	2338 if (y2 >= LUA_SCREEN_HEIGHT)
rlm@1	2339 y2 = LUA_SCREEN_HEIGHT;
rlm@1	2340
rlm@1	2341 if (!gui_checkbox(x1, y1, x2, y2))
rlm@1	2342 return;
rlm@1	2343
rlm@1	2344 //gui_prepare();
rlm@1	2345 gui_drawline_internal(x1, y1, x2, y1, true, colour);
rlm@1	2346 gui_drawline_internal(x1, y2, x2, y2, true, colour);
rlm@1	2347 gui_drawline_internal(x1, y1, x1, y2, true, colour);
rlm@1	2348 gui_drawline_internal(x2, y1, x2, y2, true, colour);
rlm@1	2349 }
rlm@1	2350
rlm@1	2351 // draw a circle on gui_data
rlm@1	2352 static void gui_drawcircle_internal(int x0, int y0, int radius, uint32 colour)
rlm@1	2353 {
rlm@1	2354 //gui_prepare();
rlm@1	2355 if (radius < 0)
rlm@1	2356 radius = -radius;
rlm@1	2357 if (radius == 0)
rlm@1	2358 return;
rlm@1	2359 if (radius == 1)
rlm@1	2360 {
rlm@1	2361 gui_drawpixel_internal(x0, y0, colour);
rlm@1	2362 return;
rlm@1	2363 }
rlm@1	2364
rlm@1	2365 // http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
rlm@1	2366 int f = 1 - radius;
rlm@1	2367 int ddF_x = 1;
rlm@1	2368 int ddF_y = -2 * radius;
rlm@1	2369 int x = 0;
rlm@1	2370 int y = radius;
rlm@1	2371
rlm@1	2372 if (!gui_checkbox(x0 - radius, y0 - radius, x0 + radius, y0 + radius))
rlm@1	2373 return;
rlm@1	2374
rlm@1	2375 gui_drawpixel_internal(x0, y0 + radius, colour);
rlm@1	2376 gui_drawpixel_internal(x0, y0 - radius, colour);
rlm@1	2377 gui_drawpixel_internal(x0 + radius, y0, colour);
rlm@1	2378 gui_drawpixel_internal(x0 - radius, y0, colour);
rlm@1	2379
rlm@1	2380 // same pixel shouldn't be drawed twice,
rlm@1	2381 // because each pixel has opacity.
rlm@1	2382 // so now the routine gets ugly.
rlm@1	2383 while (true)
rlm@1	2384 {
rlm@1	2385 assert(ddF_x == 2 * x + 1);
rlm@1	2386 assert(ddF_y == -2 * y);
rlm@1	2387 assert(f == x * x + y * y - radius * radius + 2 * x - y + 1);
rlm@1	2388 if (f >= 0)
rlm@1	2389 {
rlm@1	2390 y--;
rlm@1	2391 ddF_y += 2;
rlm@1	2392 f += ddF_y;
rlm@1	2393 }
rlm@1	2394
rlm@1	2395 x++;
rlm@1	2396 ddF_x += 2;
rlm@1	2397 f += ddF_x;
rlm@1	2398 if (x < y)
rlm@1	2399 {
rlm@1	2400 gui_drawpixel_internal(x0 + x, y0 + y, colour);
rlm@1	2401 gui_drawpixel_internal(x0 - x, y0 + y, colour);
rlm@1	2402 gui_drawpixel_internal(x0 + x, y0 - y, colour);
rlm@1	2403 gui_drawpixel_internal(x0 - x, y0 - y, colour);
rlm@1	2404 gui_drawpixel_internal(x0 + y, y0 + x, colour);
rlm@1	2405 gui_drawpixel_internal(x0 - y, y0 + x, colour);
rlm@1	2406 gui_drawpixel_internal(x0 + y, y0 - x, colour);
rlm@1	2407 gui_drawpixel_internal(x0 - y, y0 - x, colour);
rlm@1	2408 }
rlm@1	2409 else if (x == y)
rlm@1	2410 {
rlm@1	2411 gui_drawpixel_internal(x0 + x, y0 + y, colour);
rlm@1	2412 gui_drawpixel_internal(x0 - x, y0 + y, colour);
rlm@1	2413 gui_drawpixel_internal(x0 + x, y0 - y, colour);
rlm@1	2414 gui_drawpixel_internal(x0 - x, y0 - y, colour);
rlm@1	2415 break;
rlm@1	2416 }
rlm@1	2417 else
rlm@1	2418 break;
rlm@1	2419 }
rlm@1	2420 }
rlm@1	2421
rlm@1	2422 // draw fill rect on gui_data
rlm@1	2423 static void gui_fillbox_internal(int x1, int y1, int x2, int y2, uint32 colour)
rlm@1	2424 {
rlm@1	2425 if (x1 > x2)
rlm@1	2426 std::swap(x1, x2);
rlm@1	2427 if (y1 > y2)
rlm@1	2428 std::swap(y1, y2);
rlm@1	2429 if (x1 < 0)
rlm@1	2430 x1 = 0;
rlm@1	2431 if (y1 < 0)
rlm@1	2432 y1 = 0;
rlm@1	2433 if (x2 >= LUA_SCREEN_WIDTH)
rlm@1	2434 x2 = LUA_SCREEN_WIDTH - 1;
rlm@1	2435 if (y2 >= LUA_SCREEN_HEIGHT)
rlm@1	2436 y2 = LUA_SCREEN_HEIGHT - 1;
rlm@1	2437
rlm@1	2438 //gui_prepare();
rlm@1	2439 int ix, iy;
rlm@1	2440 for (iy = y1; iy <= y2; iy++)
rlm@1	2441 {
rlm@1	2442 for (ix = x1; ix <= x2; ix++)
rlm@1	2443 {
rlm@1	2444 gui_drawpixel_fast(ix, iy, colour);
rlm@1	2445 }
rlm@1	2446 }
rlm@1	2447 }
rlm@1	2448
rlm@1	2449 // fill a circle on gui_data
rlm@1	2450 static void gui_fillcircle_internal(int x0, int y0, int radius, uint32 colour)
rlm@1	2451 {
rlm@1	2452 //gui_prepare();
rlm@1	2453 if (radius < 0)
rlm@1	2454 radius = -radius;
rlm@1	2455 if (radius == 0)
rlm@1	2456 return;
rlm@1	2457 if (radius == 1)
rlm@1	2458 {
rlm@1	2459 gui_drawpixel_internal(x0, y0, colour);
rlm@1	2460 return;
rlm@1	2461 }
rlm@1	2462
rlm@1	2463 // http://en.wikipedia.org/wiki/Midpoint_circle_algorithm
rlm@1	2464 int f = 1 - radius;
rlm@1	2465 int ddF_x = 1;
rlm@1	2466 int ddF_y = -2 * radius;
rlm@1	2467 int x = 0;
rlm@1	2468 int y = radius;
rlm@1	2469
rlm@1	2470 if (!gui_checkbox(x0 - radius, y0 - radius, x0 + radius, y0 + radius))
rlm@1	2471 return;
rlm@1	2472
rlm@1	2473 gui_drawline_internal(x0, y0 - radius, x0, y0 + radius, true, colour);
rlm@1	2474
rlm@1	2475 while (true)
rlm@1	2476 {
rlm@1	2477 assert(ddF_x == 2 * x + 1);
rlm@1	2478 assert(ddF_y == -2 * y);
rlm@1	2479 assert(f == x * x + y * y - radius * radius + 2 * x - y + 1);
rlm@1	2480 if (f >= 0)
rlm@1	2481 {
rlm@1	2482 y--;
rlm@1	2483 ddF_y += 2;
rlm@1	2484 f += ddF_y;
rlm@1	2485 }
rlm@1	2486
rlm@1	2487 x++;
rlm@1	2488 ddF_x += 2;
rlm@1	2489 f += ddF_x;
rlm@1	2490
rlm@1	2491 if (x < y)
rlm@1	2492 {
rlm@1	2493 gui_drawline_internal(x0 + x, y0 - y, x0 + x, y0 + y, true, colour);
rlm@1	2494 gui_drawline_internal(x0 - x, y0 - y, x0 - x, y0 + y, true, colour);
rlm@1	2495 if (f >= 0)
rlm@1	2496 {
rlm@1	2497 gui_drawline_internal(x0 + y, y0 - x, x0 + y, y0 + x, true, colour);
rlm@1	2498 gui_drawline_internal(x0 - y, y0 - x, x0 - y, y0 + x, true, colour);
rlm@1	2499 }
rlm@1	2500 }
rlm@1	2501 else if (x == y)
rlm@1	2502 {
rlm@1	2503 gui_drawline_internal(x0 + x, y0 - y, x0 + x, y0 + y, true, colour);
rlm@1	2504 gui_drawline_internal(x0 - x, y0 - y, x0 - x, y0 + y, true, colour);
rlm@1	2505 break;
rlm@1	2506 }
rlm@1	2507 else
rlm@1	2508 break;
rlm@1	2509 }
rlm@1	2510 }
rlm@1	2511
rlm@1	2512 // Helper for a simple hex parser
rlm@1	2513 static int hex2int(lua_State *L, char c)
rlm@1	2514 {
rlm@1	2515 if (c >= '0' && c <= '9')
rlm@1	2516 return c - '0';
rlm@1	2517 if (c >= 'a' && c <= 'f')
rlm@1	2518 return c - 'a' + 10;
rlm@1	2519 if (c >= 'A' && c <= 'F')
rlm@1	2520 return c - 'A' + 10;
rlm@1	2521 return luaL_error(L, "invalid hex in colour");
rlm@1	2522 }
rlm@1	2523
rlm@1	2524 static const struct ColorMapping
rlm@1	2525 {
rlm@1	2526 const char *name;
rlm@1	2527 int value;
rlm@1	2528 }
rlm@1	2529 s_colorMapping[] =
rlm@1	2530 {
rlm@1	2531 { "white", 0xFFFFFFFF },
rlm@1	2532 { "black", 0x000000FF },
rlm@1	2533 { "clear", 0x00000000 },
rlm@1	2534 { "gray", 0x7F7F7FFF },
rlm@1	2535 { "grey", 0x7F7F7FFF },
rlm@1	2536 { "red", 0xFF0000FF },
rlm@1	2537 { "orange", 0xFF7F00FF },
rlm@1	2538 { "yellow", 0xFFFF00FF },
rlm@1	2539 { "chartreuse", 0x7FFF00FF },
rlm@1	2540 { "green", 0x00FF00FF },
rlm@1	2541 { "teal", 0x00FF7FFF },
rlm@1	2542 { "cyan", 0x00FFFFFF },
rlm@1	2543 { "blue", 0x0000FFFF },
rlm@1	2544 { "purple", 0x7F00FFFF },
rlm@1	2545 { "magenta", 0xFF00FFFF },
rlm@1	2546 };
rlm@1	2547
rlm@1	2548 /**
rlm@1	2549 * Converts an integer or a string on the stack at the given
rlm@1	2550 * offset to a RGB32 colour. Several encodings are supported.
rlm@1	2551 * The user may construct their own RGB value, given a simple colour name,
rlm@1	2552 * or an HTML-style "#09abcd" colour. 16 bit reduction doesn't occur at this time.
rlm@1	2553 */
rlm@1	2554 static inline bool str2colour(uint32 colour, lua_State L, const char *str)
rlm@1	2555 {
rlm@1	2556 if (str[0] == '#')
rlm@1	2557 {
rlm@1	2558 int color;
rlm@1	2559 sscanf(str + 1, "%X", &color);
rlm@1	2560
rlm@1	2561 int len = strlen(str + 1);
rlm@1	2562 int missing = max(0, 8 - len);
rlm@1	2563 color <<= missing << 2;
rlm@1	2564 if (missing >= 2)
rlm@1	2565 color \|= 0xFF;
rlm@1	2566 *colour = color;
rlm@1	2567 return true;
rlm@1	2568 }
rlm@1	2569 else
rlm@1	2570 {
rlm@1	2571 if (!strnicmp(str, "rand", 4))
rlm@1	2572 {
rlm@1	2573 colour = gen_rand32() \| 0xFF; //((rand()255/RAND_MAX) << 8) \| ((rand()*255/RAND_MAX) << 16) \|
rlm@1	2574 // ((rand()*255/RAND_MAX) << 24) \| 0xFF;
rlm@1	2575 return true;
rlm@1	2576 }
rlm@1	2577
rlm@1	2578 for (int i = 0; i < sizeof(s_colorMapping) / sizeof(*s_colorMapping); i++)
rlm@1	2579 {
rlm@1	2580 if (!stricmp(str, s_colorMapping[i].name))
rlm@1	2581 {
rlm@1	2582 *colour = s_colorMapping[i].value;
rlm@1	2583 return true;
rlm@1	2584 }
rlm@1	2585 }
rlm@1	2586 }
rlm@1	2587
rlm@1	2588 return false;
rlm@1	2589 }
rlm@1	2590
rlm@1	2591 static inline uint32 gui_getcolour_wrapped(lua_State *L, int offset, bool hasDefaultValue, uint32 defaultColour)
rlm@1	2592 {
rlm@1	2593 switch (lua_type(L, offset))
rlm@1	2594 {
rlm@1	2595 case LUA_TSTRING:
rlm@1	2596 {
rlm@1	2597 const char *str = lua_tostring(L, offset);
rlm@1	2598 uint32 colour;
rlm@1	2599
rlm@1	2600 if (str2colour(&colour, L, str))
rlm@1	2601 return colour;
rlm@1	2602 else
rlm@1	2603 {
rlm@1	2604 if (hasDefaultValue)
rlm@1	2605 return defaultColour;
rlm@1	2606 else
rlm@1	2607 return luaL_error(L, "unknown colour %s", str);
rlm@1	2608 }
rlm@1	2609 }
rlm@1	2610
rlm@1	2611 case LUA_TNUMBER:
rlm@1	2612 {
rlm@1	2613 uint32 colour = (uint32) lua_tointeger(L, offset);
rlm@1	2614 return colour;
rlm@1	2615 }
rlm@1	2616
rlm@1	2617 case LUA_TTABLE:
rlm@1	2618 {
rlm@1	2619 int color = 0xFF;
rlm@1	2620 lua_pushnil(L); // first key
rlm@1	2621 int keyIndex = lua_gettop(L);
rlm@1	2622 int valueIndex = keyIndex + 1;
rlm@1	2623 bool first = true;
rlm@1	2624 while (lua_next(L, offset))
rlm@1	2625 {
rlm@1	2626 bool keyIsString = (lua_type(L, keyIndex) == LUA_TSTRING);
rlm@1	2627 bool keyIsNumber = (lua_type(L, keyIndex) == LUA_TNUMBER);
rlm@1	2628 int key = keyIsString ? tolower(*lua_tostring(L, keyIndex)) : (keyIsNumber ? lua_tointeger(L, keyIndex) : 0);
rlm@1	2629 int value = lua_tointeger(L, valueIndex);
rlm@1	2630 if (value < 0) value = 0;
rlm@1	2631 if (value > 255) value = 255;
rlm@1	2632 switch (key)
rlm@1	2633 {
rlm@1	2634 case 1:
rlm@1	2635 case 'r':
rlm@1	2636 color \|= value << 24; break;
rlm@1	2637 case 2:
rlm@1	2638 case 'g':
rlm@1	2639 color \|= value << 16; break;
rlm@1	2640 case 3:
rlm@1	2641 case 'b':
rlm@1	2642 color \|= value << 8; break;
rlm@1	2643 case 4:
rlm@1	2644 case 'a':
rlm@1	2645 color = (color & ~0xFF) \| value; break;
rlm@1	2646 }
rlm@1	2647 lua_pop(L, 1);
rlm@1	2648 }
rlm@1	2649 return color;
rlm@1	2650 } break;
rlm@1	2651
rlm@1	2652 case LUA_TFUNCTION:
rlm@1	2653 luaL_error(L, "invalid colour"); // NYI
rlm@1	2654 return 0;
rlm@1	2655
rlm@1	2656 default:
rlm@1	2657 if (hasDefaultValue)
rlm@1	2658 return defaultColour;
rlm@1	2659 else
rlm@1	2660 return luaL_error(L, "invalid colour");
rlm@1	2661 }
rlm@1	2662 }
rlm@1	2663
rlm@1	2664 static uint32 gui_getcolour(lua_State *L, int offset)
rlm@1	2665 {
rlm@1	2666 uint32 colour;
rlm@1	2667 int a, r, g, b;
rlm@1	2668
rlm@1	2669 colour = gui_getcolour_wrapped(L, offset, false, 0);
rlm@1	2670 a = ((colour & 0xff) * transparencyModifier) / 255;
rlm@1	2671 if (a > 255)
rlm@1	2672 a = 255;
rlm@1	2673 b = (colour >> 8) & 0xff;
rlm@1	2674 g = (colour >> 16) & 0xff;
rlm@1	2675 r = (colour >> 24) & 0xff;
rlm@1	2676 return LUA_BUILD_PIXEL(a, r, g, b);
rlm@1	2677 }
rlm@1	2678
rlm@1	2679 static uint32 gui_optcolour(lua_State *L, int offset, uint32 defaultColour)
rlm@1	2680 {
rlm@1	2681 uint32 colour;
rlm@1	2682 int a, r, g, b;
rlm@1	2683 uint8 defA, defB, defG, defR;
rlm@1	2684
rlm@1	2685 LUA_DECOMPOSE_PIXEL(defaultColour, defA, defR, defG, defB);
rlm@1	2686 defaultColour = (defR << 24) \| (defG << 16) \| (defB << 8) \| defA;
rlm@1	2687
rlm@1	2688 colour = gui_getcolour_wrapped(L, offset, true, defaultColour);
rlm@1	2689 a = ((colour & 0xff) * transparencyModifier) / 255;
rlm@1	2690 if (a > 255)
rlm@1	2691 a = 255;
rlm@1	2692 b = (colour >> 8) & 0xff;
rlm@1	2693 g = (colour >> 16) & 0xff;
rlm@1	2694 r = (colour >> 24) & 0xff;
rlm@1	2695 return LUA_BUILD_PIXEL(a, r, g, b);
rlm@1	2696 }
rlm@1	2697
rlm@1	2698 // gui.drawpixel(x,y,colour)
rlm@1	2699 static int gui_drawpixel(lua_State *L)
rlm@1	2700 {
rlm@1	2701 int x = luaL_checkinteger(L, 1);
rlm@1	2702 int y = luaL_checkinteger(L, 2);
rlm@1	2703
rlm@1	2704 uint32 colour = gui_getcolour(L, 3);
rlm@1	2705
rlm@1	2706 // if (!gui_check_boundary(x, y))
rlm@1	2707 // luaL_error(L,"bad coordinates");
rlm@1	2708 gui_prepare();
rlm@1	2709
rlm@1	2710 gui_drawpixel_internal(x, y, colour);
rlm@1	2711
rlm@1	2712 return 0;
rlm@1	2713 }
rlm@1	2714
rlm@1	2715 // gui.drawline(x1,y1,x2,y2,color,skipFirst)
rlm@1	2716 static int gui_drawline(lua_State *L)
rlm@1	2717 {
rlm@1	2718 int x1, y1, x2, y2;
rlm@1	2719 uint32 color;
rlm@1	2720 x1 = luaL_checkinteger(L, 1);
rlm@1	2721 y1 = luaL_checkinteger(L, 2);
rlm@1	2722 x2 = luaL_checkinteger(L, 3);
rlm@1	2723 y2 = luaL_checkinteger(L, 4);
rlm@1	2724 color = gui_optcolour(L, 5, LUA_BUILD_PIXEL(255, 255, 255, 255));
rlm@1	2725 int skipFirst = lua_toboolean(L, 6);
rlm@1	2726
rlm@1	2727 gui_prepare();
rlm@1	2728
rlm@1	2729 gui_drawline_internal(x2, y2, x1, y1, !skipFirst, color);
rlm@1	2730
rlm@1	2731 return 0;
rlm@1	2732 }
rlm@1	2733
rlm@1	2734 // gui.drawbox(x1, y1, x2, y2, fillcolor, outlinecolor)
rlm@1	2735 static int gui_drawbox(lua_State *L)
rlm@1	2736 {
rlm@1	2737 int x1, y1, x2, y2;
rlm@1	2738 uint32 fillcolor;
rlm@1	2739 uint32 outlinecolor;
rlm@1	2740
rlm@1	2741 x1 = luaL_checkinteger(L, 1);
rlm@1	2742 y1 = luaL_checkinteger(L, 2);
rlm@1	2743 x2 = luaL_checkinteger(L, 3);
rlm@1	2744 y2 = luaL_checkinteger(L, 4);
rlm@1	2745 fillcolor = gui_optcolour(L, 5, LUA_BUILD_PIXEL(63, 255, 255, 255));
rlm@1	2746 outlinecolor = gui_optcolour(L, 6, LUA_BUILD_PIXEL(255, LUA_PIXEL_R(fillcolor), LUA_PIXEL_G(fillcolor), LUA_PIXEL_B(fillcolor)));
rlm@1	2747
rlm@1	2748 if (x1 > x2)
rlm@1	2749 std::swap(x1, x2);
rlm@1	2750 if (y1 > y2)
rlm@1	2751 std::swap(y1, y2);
rlm@1	2752
rlm@1	2753 gui_prepare();
rlm@1	2754
rlm@1	2755 gui_drawbox_internal(x1, y1, x2, y2, outlinecolor);
rlm@1	2756 if ((x2 - x1) >= 2 && (y2 - y1) >= 2)
rlm@1	2757 gui_fillbox_internal(x1 + 1, y1 + 1, x2 - 1, y2 - 1, fillcolor);
rlm@1	2758
rlm@1	2759 return 0;
rlm@1	2760 }
rlm@1	2761
rlm@1	2762 // gui.drawcircle(x0, y0, radius, colour)
rlm@1	2763 static int gui_drawcircle(lua_State *L)
rlm@1	2764 {
rlm@1	2765 int x, y, r;
rlm@1	2766 uint32 colour;
rlm@1	2767
rlm@1	2768 x = luaL_checkinteger(L, 1);
rlm@1	2769 y = luaL_checkinteger(L, 2);
rlm@1	2770 r = luaL_checkinteger(L, 3);
rlm@1	2771 colour = gui_getcolour(L, 4);
rlm@1	2772
rlm@1	2773 gui_prepare();
rlm@1	2774
rlm@1	2775 gui_drawcircle_internal(x, y, r, colour);
rlm@1	2776
rlm@1	2777 return 0;
rlm@1	2778 }
rlm@1	2779
rlm@1	2780 // gui.fillbox(x1, y1, x2, y2, colour)
rlm@1	2781 static int gui_fillbox(lua_State *L)
rlm@1	2782 {
rlm@1	2783 int x1, y1, x2, y2;
rlm@1	2784 uint32 colour;
rlm@1	2785
rlm@1	2786 x1 = luaL_checkinteger(L, 1);
rlm@1	2787 y1 = luaL_checkinteger(L, 2);
rlm@1	2788 x2 = luaL_checkinteger(L, 3);
rlm@1	2789 y2 = luaL_checkinteger(L, 4);
rlm@1	2790 colour = gui_getcolour(L, 5);
rlm@1	2791
rlm@1	2792 // if (!gui_check_boundary(x1, y1))
rlm@1	2793 // luaL_error(L,"bad coordinates");
rlm@1	2794 //
rlm@1	2795 // if (!gui_check_boundary(x2, y2))
rlm@1	2796 // luaL_error(L,"bad coordinates");
rlm@1	2797 gui_prepare();
rlm@1	2798
rlm@1	2799 if (!gui_checkbox(x1, y1, x2, y2))
rlm@1	2800 return 0;
rlm@1	2801
rlm@1	2802 gui_fillbox_internal(x1, y1, x2, y2, colour);
rlm@1	2803
rlm@1	2804 return 0;
rlm@1	2805 }
rlm@1	2806
rlm@1	2807 // gui.fillcircle(x0, y0, radius, colour)
rlm@1	2808 static int gui_fillcircle(lua_State *L)
rlm@1	2809 {
rlm@1	2810 int x, y, r;
rlm@1	2811 uint32 colour;
rlm@1	2812
rlm@1	2813 x = luaL_checkinteger(L, 1);
rlm@1	2814 y = luaL_checkinteger(L, 2);
rlm@1	2815 r = luaL_checkinteger(L, 3);
rlm@1	2816 colour = gui_getcolour(L, 4);
rlm@1	2817
rlm@1	2818 gui_prepare();
rlm@1	2819
rlm@1	2820 gui_fillcircle_internal(x, y, r, colour);
rlm@1	2821
rlm@1	2822 return 0;
rlm@1	2823 }
rlm@1	2824
rlm@1	2825 static int gui_getpixel(lua_State *L)
rlm@1	2826 {
rlm@1	2827 int x = luaL_checkinteger(L, 1);
rlm@1	2828 int y = luaL_checkinteger(L, 2);
rlm@1	2829
rlm@1	2830 int pixWidth = 240, pixHeight = 160;
rlm@1	2831 int scrWidth = 240, scrHeight = 160;
rlm@1	2832 int scrOffsetX = 0, scrOffsetY = 0;
rlm@1	2833 int pitch;
rlm@1	2834 if (!systemIsRunningGBA())
rlm@1	2835 {
rlm@1	2836 if (gbBorderOn)
rlm@1	2837 {
rlm@1	2838 pixWidth = 256, pixHeight = 224;
rlm@1	2839 scrOffsetX = 48, scrOffsetY = 40;
rlm@1	2840 }
rlm@1	2841 else
rlm@1	2842 {
rlm@1	2843 pixWidth = 160, pixHeight = 144;
rlm@1	2844 }
rlm@1	2845 scrWidth = 160, scrHeight = 144;
rlm@1	2846 }
rlm@1	2847 pitch = pixWidth * (systemColorDepth / 8) + (systemColorDepth == 24 ? 0 : 4);
rlm@1	2848 scrOffsetY++; // don't know why it's needed
rlm@1	2849
rlm@1	2850 if (!(x >= 0 && y >= 0 && x < scrWidth && y < scrHeight) /!gui_check_boundary(x,y)/)
rlm@1	2851 {
rlm@1	2852 lua_pushinteger(L, 0);
rlm@1	2853 lua_pushinteger(L, 0);
rlm@1	2854 lua_pushinteger(L, 0);
rlm@1	2855 }
rlm@1	2856 else
rlm@1	2857 {
rlm@1	2858 switch (systemColorDepth)
rlm@1	2859 {
rlm@1	2860 case 16:
rlm@1	2861 {
rlm@1	2862 uint16 screen = (uint16 ) (&pix[scrOffsetY * pitch + scrOffsetX * 2]);
rlm@1	2863 uint16 pixColor = screen[y * pitch / 2 + x];
rlm@1	2864 lua_pushinteger(L, (pixColor >> 8) & 0xF8); // red
rlm@1	2865 lua_pushinteger(L, (pixColor >> 3) & 0xFC); // green
rlm@1	2866 lua_pushinteger(L, (pixColor << 3) & 0xF8); // blue
rlm@1	2867 }
rlm@1	2868 break;
rlm@1	2869 case 24:
rlm@1	2870 {
rlm@1	2871 uint8 screen = &pix[scrOffsetY pitch + scrOffsetX * 3];
rlm@1	2872 lua_pushinteger(L, screen[y * pitch + x * 3 + 2]); // red
rlm@1	2873 lua_pushinteger(L, screen[y * pitch + x * 3 + 1]); // green
rlm@1	2874 lua_pushinteger(L, screen[y * pitch + x * 3 + 0]); // blue
rlm@1	2875 }
rlm@1	2876 break;
rlm@1	2877 case 32:
rlm@1	2878 {
rlm@1	2879 uint8 screen = &pix[scrOffsetY pitch + scrOffsetX * 4];
rlm@1	2880 lua_pushinteger(L, screen[y * pitch + x * 4 + 2]); // red
rlm@1	2881 lua_pushinteger(L, screen[y * pitch + x * 4 + 1]); // green
rlm@1	2882 lua_pushinteger(L, screen[y * pitch + x * 4 + 0]); // blue
rlm@1	2883 }
rlm@1	2884 break;
rlm@1	2885 default:
rlm@1	2886 lua_pushinteger(L, 0);
rlm@1	2887 lua_pushinteger(L, 0);
rlm@1	2888 lua_pushinteger(L, 0);
rlm@1	2889 break;
rlm@1	2890 }
rlm@1	2891 }
rlm@1	2892 return 3;
rlm@1	2893 }
rlm@1	2894
rlm@1	2895 static int gui_parsecolor(lua_State *L)
rlm@1	2896 {
rlm@1	2897 int r, g, b, a;
rlm@1	2898 uint32 color = gui_getcolour(L, 1);
rlm@1	2899 LUA_DECOMPOSE_PIXEL(color, a, r, g, b);
rlm@1	2900 lua_pushinteger(L, r);
rlm@1	2901 lua_pushinteger(L, g);
rlm@1	2902 lua_pushinteger(L, b);
rlm@1	2903 lua_pushinteger(L, a);
rlm@1	2904 return 4;
rlm@1	2905 }
rlm@1	2906
rlm@1	2907 // gui.gdscreenshot()
rlm@1	2908 //
rlm@1	2909 // Returns a screen shot as a string in gd's v1 file format.
rlm@1	2910 // This allows us to make screen shots available without gd installed locally.
rlm@1	2911 // Users can also just grab pixels via substring selection.
rlm@1	2912 //
rlm@1	2913 // I think... Does lua support grabbing byte values from a string? // yes, string.byte(str,offset)
rlm@1	2914 // Well, either way, just install gd and do what you like with it.
rlm@1	2915 // It really is easier that way.
rlm@1	2916
rlm@1	2917 // example: gd.createFromGdStr(gui.gdscreenshot()):png("outputimage.png")
rlm@1	2918 static int gui_gdscreenshot(lua_State *L)
rlm@1	2919 {
rlm@1	2920 int xofs = 0, yofs = 0, ppl = 240, width = 240, height = 160;
rlm@1	2921 if (!systemIsRunningGBA())
rlm@1	2922 {
rlm@1	2923 if (gbBorderOn)
rlm@1	2924 xofs = 48, yofs = 40, ppl = 256;
rlm@1	2925 else
rlm@1	2926 ppl = 160;
rlm@1	2927 width = 160, height = 144;
rlm@1	2928 }
rlm@1	2929
rlm@1	2930 yofs++;
rlm@1	2931
rlm@1	2932 //int pitch = (((ppl * systemColorDepth + 7)>>3)+3)&~3;
rlm@1	2933 int pitch = ppl * (systemColorDepth / 8) + (systemColorDepth == 24 ? 0 : 4);
rlm@1	2934 uint8 screen = &pix[yofs pitch + xofs * (systemColorDepth / 8)];
rlm@1	2935
rlm@1	2936 int size = 11 + width * height * 4;
rlm@1	2937 char *str = new char[size + 1];
rlm@1	2938 str[size] = 0;
rlm@1	2939
rlm@1	2940 unsigned char ptr = (unsigned char )str;
rlm@1	2941
rlm@1	2942 // GD format header for truecolor image (11 bytes)
rlm@1	2943 *ptr++ = (65534 >> 8) & 0xFF;
rlm@1	2944 *ptr++ = (65534) & 0xFF;
rlm@1	2945 *ptr++ = (width >> 8) & 0xFF;
rlm@1	2946 *ptr++ = (width) & 0xFF;
rlm@1	2947 *ptr++ = (height >> 8) & 0xFF;
rlm@1	2948 *ptr++ = (height) & 0xFF;
rlm@1	2949 *ptr++ = 1;
rlm@1	2950 *ptr++ = 255;
rlm@1	2951 *ptr++ = 255;
rlm@1	2952 *ptr++ = 255;
rlm@1	2953 *ptr++ = 255;
rlm@1	2954
rlm@1	2955 GetColorFunc getColor;
rlm@1	2956 getColorIOFunc(systemColorDepth, &getColor, NULL);
rlm@1	2957
rlm@1	2958 int x, y;
rlm@1	2959 for (y = 0; y < height; y++)
rlm@1	2960 {
rlm@1	2961 uint8 s = &screen[y pitch];
rlm@1	2962 for (x = 0; x < width; x++, s += systemColorDepth / 8)
rlm@1	2963 {
rlm@1	2964 uint8 r, g, b;
rlm@1	2965 getColor(s, &r, &g, &b);
rlm@1	2966
rlm@1	2967 *ptr++ = 0;
rlm@1	2968 *ptr++ = r;
rlm@1	2969 *ptr++ = g;
rlm@1	2970 *ptr++ = b;
rlm@1	2971 }
rlm@1	2972 }
rlm@1	2973
rlm@1	2974 lua_pushlstring(L, str, size);
rlm@1	2975 delete[] str;
rlm@1	2976 return 1;
rlm@1	2977 }
rlm@1	2978
rlm@1	2979 // gui.opacity(number alphaValue)
rlm@1	2980 // sets the transparency of subsequent draw calls
rlm@1	2981 // 0.0 is completely transparent, 1.0 is completely opaque
rlm@1	2982 // non-integer values are supported and meaningful, as are values greater than 1.0
rlm@1	2983 // it is not necessary to use this function to get transparency (or the less-recommended gui.transparency() either),
rlm@1	2984 // because you can provide an alpha value in the color argument of each draw call.
rlm@1	2985
rlm@1	2986 // however, it can be convenient to be able to globally modify the drawing transparency
rlm@1	2987 static int gui_setopacity(lua_State *L)
rlm@1	2988 {
rlm@1	2989 double opacF = luaL_checknumber(L, 1);
rlm@1	2990 transparencyModifier = (int)(opacF * 255);
rlm@1	2991 if (transparencyModifier < 0)
rlm@1	2992 transparencyModifier = 0;
rlm@1	2993 return 0;
rlm@1	2994 }
rlm@1	2995
rlm@1	2996 // gui.transparency(int strength)
rlm@1	2997 //
rlm@1	2998
rlm@1	2999 // 0 = solid,
rlm@1	3000 static int gui_transparency(lua_State *L)
rlm@1	3001 {
rlm@1	3002 double trans = luaL_checknumber(L, 1);
rlm@1	3003 transparencyModifier = (int)((4.0 - trans) / 4.0 * 255);
rlm@1	3004 if (transparencyModifier < 0)
rlm@1	3005 transparencyModifier = 0;
rlm@1	3006 return 0;
rlm@1	3007 }
rlm@1	3008
rlm@1	3009 static const uint32 Small_Font_Data[] =
rlm@1	3010 {
rlm@1	3011 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 32
rlm@1	3012 0x00000000, 0x00000300, 0x00000400, 0x00000500, 0x00000000, 0x00000700, 0x00000000, // 33 !
rlm@1	3013 0x00000000, 0x00040002, 0x00050003, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 34 "
rlm@1	3014 0x00000000, 0x00040002, 0x00050403, 0x00060004, 0x00070605, 0x00080006, 0x00000000, // 35 #
rlm@1	3015 0x00000000, 0x00040300, 0x00000403, 0x00000500, 0x00070600, 0x00000706, 0x00000000, // 36 $
rlm@1	3016 0x00000000, 0x00000002, 0x00050000, 0x00000500, 0x00000005, 0x00080000, 0x00000000, // 37 %
rlm@1	3017 0x00000000, 0x00000300, 0x00050003, 0x00000500, 0x00070005, 0x00080700, 0x00000000, // 38 &
rlm@1	3018 0x00000000, 0x00000300, 0x00000400, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 39 '
rlm@1	3019 0x00000000, 0x00000300, 0x00000003, 0x00000004, 0x00000005, 0x00000700, 0x00000000, // 40 (
rlm@1	3020 0x00000000, 0x00000300, 0x00050000, 0x00060000, 0x00070000, 0x00000700, 0x00000000, // 41 )
rlm@1	3021 0x00000000, 0x00000000, 0x00000400, 0x00060504, 0x00000600, 0x00080006, 0x00000000, // 42 *
rlm@1	3022 0x00000000, 0x00000000, 0x00000400, 0x00060504, 0x00000600, 0x00000000, 0x00000000, // 43 +
rlm@1	3023 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000600, 0x00000700, 0x00000007, // 44 ,
rlm@1	3024 0x00000000, 0x00000000, 0x00000000, 0x00060504, 0x00000000, 0x00000000, 0x00000000, // 45 -
rlm@1	3025 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000700, 0x00000000, // 46 .
rlm@1	3026 0x00030000, 0x00040000, 0x00000400, 0x00000500, 0x00000005, 0x00000006, 0x00000000, // 47 /
rlm@1	3027 0x00000000, 0x00000300, 0x00050003, 0x00060004, 0x00070005, 0x00000700, 0x00000000, // 48 0
rlm@1	3028 0x00000000, 0x00000300, 0x00000403, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 49 1
rlm@1	3029 0x00000000, 0x00000302, 0x00050000, 0x00000500, 0x00000005, 0x00080706, 0x00000000, // 50 2
rlm@1	3030 0x00000000, 0x00000302, 0x00050000, 0x00000504, 0x00070000, 0x00000706, 0x00000000, // 51 3
rlm@1	3031 0x00000000, 0x00000300, 0x00000003, 0x00060004, 0x00070605, 0x00080000, 0x00000000, // 52 4
rlm@1	3032 0x00000000, 0x00040302, 0x00000003, 0x00000504, 0x00070000, 0x00000706, 0x00000000, // 53 5
rlm@1	3033 0x00000000, 0x00000300, 0x00000003, 0x00000504, 0x00070005, 0x00000700, 0x00000000, // 54 6
rlm@1	3034 0x00000000, 0x00040302, 0x00050000, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 55 7
rlm@1	3035 0x00000000, 0x00000300, 0x00050003, 0x00000500, 0x00070005, 0x00000700, 0x00000000, // 56 8
rlm@1	3036 0x00000000, 0x00000300, 0x00050003, 0x00060500, 0x00070000, 0x00000700, 0x00000000, // 57 9
rlm@1	3037 0x00000000, 0x00000000, 0x00000400, 0x00000000, 0x00000000, 0x00000700, 0x00000000, // 58 :
rlm@1	3038 0x00000000, 0x00000000, 0x00000000, 0x00000500, 0x00000000, 0x00000700, 0x00000007, // 59 ;
rlm@1	3039 0x00000000, 0x00040000, 0x00000400, 0x00000004, 0x00000600, 0x00080000, 0x00000000, // 60 <
rlm@1	3040 0x00000000, 0x00000000, 0x00050403, 0x00000000, 0x00070605, 0x00000000, 0x00000000, // 61 =
rlm@1	3041 0x00000000, 0x00000002, 0x00000400, 0x00060000, 0x00000600, 0x00000006, 0x00000000, // 62 >
rlm@1	3042 0x00000000, 0x00000302, 0x00050000, 0x00000500, 0x00000000, 0x00000700, 0x00000000, // 63 ?
rlm@1	3043 0x00000000, 0x00000300, 0x00050400, 0x00060004, 0x00070600, 0x00000000, 0x00000000, // 64 @
rlm@1	3044 0x00000000, 0x00000300, 0x00050003, 0x00060504, 0x00070005, 0x00080006, 0x00000000, // 65 A
rlm@1	3045 0x00000000, 0x00000302, 0x00050003, 0x00000504, 0x00070005, 0x00000706, 0x00000000, // 66 B
rlm@1	3046 0x00000000, 0x00040300, 0x00000003, 0x00000004, 0x00000005, 0x00080700, 0x00000000, // 67 C
rlm@1	3047 0x00000000, 0x00000302, 0x00050003, 0x00060004, 0x00070005, 0x00000706, 0x00000000, // 68 D
rlm@1	3048 0x00000000, 0x00040302, 0x00000003, 0x00000504, 0x00000005, 0x00080706, 0x00000000, // 69 E
rlm@1	3049 0x00000000, 0x00040302, 0x00000003, 0x00000504, 0x00000005, 0x00000006, 0x00000000, // 70 F
rlm@1	3050 0x00000000, 0x00040300, 0x00000003, 0x00060004, 0x00070005, 0x00080700, 0x00000000, // 71 G
rlm@1	3051 0x00000000, 0x00040002, 0x00050003, 0x00060504, 0x00070005, 0x00080006, 0x00000000, // 72 H
rlm@1	3052 0x00000000, 0x00000300, 0x00000400, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 73 I
rlm@1	3053 0x00000000, 0x00040000, 0x00050000, 0x00060000, 0x00070005, 0x00000700, 0x00000000, // 74 J
rlm@1	3054 0x00000000, 0x00040002, 0x00050003, 0x00000504, 0x00070005, 0x00080006, 0x00000000, // 75 K
rlm@1	3055 0x00000000, 0x00000002, 0x00000003, 0x00000004, 0x00000005, 0x00080706, 0x00000000, // 76 l
rlm@1	3056 0x00000000, 0x00040002, 0x00050403, 0x00060004, 0x00070005, 0x00080006, 0x00000000, // 77 M
rlm@1	3057 0x00000000, 0x00000302, 0x00050003, 0x00060004, 0x00070005, 0x00080006, 0x00000000, // 78 N
rlm@1	3058 0x00000000, 0x00040302, 0x00050003, 0x00060004, 0x00070005, 0x00080706, 0x00000000, // 79 O
rlm@1	3059 0x00000000, 0x00000302, 0x00050003, 0x00000504, 0x00000005, 0x00000006, 0x00000000, // 80 P
rlm@1	3060 0x00000000, 0x00040302, 0x00050003, 0x00060004, 0x00070005, 0x00080706, 0x00090000, // 81 Q
rlm@1	3061 0x00000000, 0x00000302, 0x00050003, 0x00000504, 0x00070005, 0x00080006, 0x00000000, // 82 R
rlm@1	3062 0x00000000, 0x00040300, 0x00000003, 0x00000500, 0x00070000, 0x00000706, 0x00000000, // 83 S
rlm@1	3063 0x00000000, 0x00040302, 0x00000400, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 84 T
rlm@1	3064 0x00000000, 0x00040002, 0x00050003, 0x00060004, 0x00070005, 0x00080706, 0x00000000, // 85 U
rlm@1	3065 0x00000000, 0x00040002, 0x00050003, 0x00060004, 0x00000600, 0x00000700, 0x00000000, // 86 V
rlm@1	3066 0x00000000, 0x00040002, 0x00050003, 0x00060004, 0x00070605, 0x00080006, 0x00000000, // 87 W
rlm@1	3067 0x00000000, 0x00040002, 0x00050003, 0x00000500, 0x00070005, 0x00080006, 0x00000000, // 88 X
rlm@1	3068 0x00000000, 0x00040002, 0x00050003, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 89 Y
rlm@1	3069 0x00000000, 0x00040302, 0x00050000, 0x00000500, 0x00000005, 0x00080706, 0x00000000, // 90 Z
rlm@1	3070 0x00000000, 0x00040300, 0x00000400, 0x00000500, 0x00000600, 0x00080700, 0x00000000, // 91 [
rlm@1	3071 0x00000000, 0x00000002, 0x00000400, 0x00000500, 0x00070000, 0x00080000, 0x00000000, // 92 '\'
rlm@1	3072 0x00000000, 0x00000302, 0x00000400, 0x00000500, 0x00000600, 0x00000706, 0x00000000, // 93 ]
rlm@1	3073 0x00000000, 0x00000300, 0x00050003, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 94 ^
rlm@1	3074 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00080706, 0x00000000, // 95 _
rlm@1	3075 0x00000000, 0x00000002, 0x00000400, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 96 `
rlm@1	3076 0x00000000, 0x00000000, 0x00050400, 0x00060004, 0x00070005, 0x00080700, 0x00000000, // 97 a
rlm@1	3077 0x00000000, 0x00000002, 0x00000003, 0x00000504, 0x00070005, 0x00000706, 0x00000000, // 98 b
rlm@1	3078 0x00000000, 0x00000000, 0x00050400, 0x00000004, 0x00000005, 0x00080700, 0x00000000, // 99 c
rlm@1	3079 0x00000000, 0x00040000, 0x00050000, 0x00060500, 0x00070005, 0x00080700, 0x00000000, // 100 d
rlm@1	3080 0x00000000, 0x00000000, 0x00050400, 0x00060504, 0x00000005, 0x00080700, 0x00000000, // 101 e
rlm@1	3081 0x00000000, 0x00040300, 0x00000003, 0x00000504, 0x00000005, 0x00000006, 0x00000000, // 102 f
rlm@1	3082 0x00000000, 0x00000000, 0x00050400, 0x00060004, 0x00070600, 0x00080000, 0x00000807, // 103 g
rlm@1	3083 0x00000000, 0x00000002, 0x00000003, 0x00000504, 0x00070005, 0x00080006, 0x00000000, // 104 h
rlm@1	3084 0x00000000, 0x00000300, 0x00000000, 0x00000500, 0x00000600, 0x00000700, 0x00000000, // 105 i
rlm@1	3085 0x00000000, 0x00000300, 0x00000000, 0x00000500, 0x00000600, 0x00000700, 0x00000007, // 106 j
rlm@1	3086 0x00000000, 0x00000002, 0x00000003, 0x00060004, 0x00000605, 0x00080006, 0x00000000, // 107 k
rlm@1	3087 0x00000000, 0x00000300, 0x00000400, 0x00000500, 0x00000600, 0x00080000, 0x00000000, // 108 l
rlm@1	3088 0x00000000, 0x00000000, 0x00050003, 0x00060504, 0x00070005, 0x00080006, 0x00000000, // 109 m
rlm@1	3089 0x00000000, 0x00000000, 0x00000403, 0x00060004, 0x00070005, 0x00080006, 0x00000000, // 110 n
rlm@1	3090 0x00000000, 0x00000000, 0x00000400, 0x00060004, 0x00070005, 0x00000700, 0x00000000, // 111 o
rlm@1	3091 0x00000000, 0x00000000, 0x00000400, 0x00060004, 0x00000605, 0x00000006, 0x00000007, // 112 p
rlm@1	3092 0x00000000, 0x00000000, 0x00000400, 0x00060004, 0x00070600, 0x00080000, 0x00090000, // 113 q
rlm@1	3093 0x00000000, 0x00000000, 0x00050003, 0x00000504, 0x00000005, 0x00000006, 0x00000000, // 114 r
rlm@1	3094 0x00000000, 0x00000000, 0x00050400, 0x00000004, 0x00070600, 0x00000706, 0x00000000, // 115 s
rlm@1	3095 0x00000000, 0x00000300, 0x00050403, 0x00000500, 0x00000600, 0x00080000, 0x00000000, // 116 t
rlm@1	3096 0x00000000, 0x00000000, 0x00050003, 0x00060004, 0x00070005, 0x00080700, 0x00000000, // 117 u
rlm@1	3097 0x00000000, 0x00000000, 0x00050003, 0x00060004, 0x00070005, 0x00000700, 0x00000000, // 118 v
rlm@1	3098 0x00000000, 0x00000000, 0x00050003, 0x00060004, 0x00070605, 0x00080006, 0x00000000, // 119 w
rlm@1	3099 0x00000000, 0x00000000, 0x00050003, 0x00000500, 0x00070005, 0x00080006, 0x00000000, // 120 x
rlm@1	3100 0x00000000, 0x00000000, 0x00050003, 0x00060004, 0x00000600, 0x00000700, 0x00000007, // 121 y
rlm@1	3101 0x00000000, 0x00000000, 0x00050403, 0x00000500, 0x00000005, 0x00080706, 0x00000000, // 122 z
rlm@1	3102 0x00000000, 0x00040300, 0x00000400, 0x00000504, 0x00000600, 0x00080700, 0x00000000, // 123 {
rlm@1	3103 0x00000000, 0x00000300, 0x00000400, 0x00000000, 0x00000600, 0x00000700, 0x00000000, // 124 \|
rlm@1	3104 0x00000000, 0x00000302, 0x00000400, 0x00060500, 0x00000600, 0x00000706, 0x00000000, // 125 }
rlm@1	3105 0x00000000, 0x00000302, 0x00050000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, // 126 ~
rlm@1	3106 0x00000000, 0x00000000, 0x00000400, 0x00060004, 0x00070605, 0x00000000, 0x00000000, // 127
rlm@1	3107 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000, 0x00000000,
rlm@1	3108 };
rlm@1	3109
rlm@1	3110 static void PutTextInternal(const char *str, int len, short x, short y, int color, int backcolor)
rlm@1	3111 {
rlm@1	3112 int Opac = (color >> 24) & 0xFF;
rlm@1	3113 int backOpac = (backcolor >> 24) & 0xFF;
rlm@1	3114 int origX = x;
rlm@1	3115
rlm@1	3116 if (!Opac && !backOpac)
rlm@1	3117 return;
rlm@1	3118
rlm@1	3119 while (*str && len && y < LUA_SCREEN_HEIGHT)
rlm@1	3120 {
rlm@1	3121 int c = *str++;
rlm@1	3122 while (x > LUA_SCREEN_WIDTH && c != '\n')
rlm@1	3123 {
rlm@1	3124 c = *str;
rlm@1	3125 if (c == '\0')
rlm@1	3126 break;
rlm@1	3127 str++;
rlm@1	3128 }
rlm@1	3129
rlm@1	3130 if (c == '\n')
rlm@1	3131 {
rlm@1	3132 x = origX;
rlm@1	3133 y += 8;
rlm@1	3134 continue;
rlm@1	3135 }
rlm@1	3136 else if (c == '\t') // just in case
rlm@1	3137 {
rlm@1	3138 const int tabSpace = 8;
rlm@1	3139 x += (tabSpace - (((x - origX) / 4) % tabSpace)) * 4;
rlm@1	3140 continue;
rlm@1	3141 }
rlm@1	3142
rlm@1	3143 if ((unsigned int)(c - 32) >= 96)
rlm@1	3144 continue;
rlm@1	3145
rlm@1	3146 const unsigned char Cur_Glyph = (const unsigned char ) &Small_Font_Data + (c - 32) * 7 * 4;
rlm@1	3147
rlm@1	3148 for (int y2 = 0; y2 < 8; y2++)
rlm@1	3149 {
rlm@1	3150 unsigned int glyphLine = ((unsigned int )Cur_Glyph + y2);
rlm@1	3151 for (int x2 = -1; x2 < 4; x2++)
rlm@1	3152 {
rlm@1	3153 int shift = x2 << 3;
rlm@1	3154 int mask = 0xFF << shift;
rlm@1	3155 int intensity = (glyphLine & mask) >> shift;
rlm@1	3156
rlm@1	3157 if (intensity && x2 >= 0 && y2 < 7)
rlm@1	3158 {
rlm@1	3159 //int xdraw = max(0,min(LUA_SCREEN_WIDTH - 1,x+x2));
rlm@1	3160 //int ydraw = max(0,min(LUA_SCREEN_HEIGHT - 1,y+y2));
rlm@1	3161 //gui_drawpixel_fast(xdraw, ydraw, color);
rlm@1	3162 gui_drawpixel_internal(x + x2, y + y2, color);
rlm@1	3163 }
rlm@1	3164 else if (backOpac)
rlm@1	3165 {
rlm@1	3166 for (int y3 = max(0, y2 - 1); y3 <= min(6, y2 + 1); y3++)
rlm@1	3167 {
rlm@1	3168 unsigned int glyphLine = ((unsigned int )Cur_Glyph + y3);
rlm@1	3169 for (int x3 = max(0, x2 - 1); x3 <= min(3, x2 + 1); x3++)
rlm@1	3170 {
rlm@1	3171 int shift = x3 << 3;
rlm@1	3172 int mask = 0xFF << shift;
rlm@1	3173 intensity \|= (glyphLine & mask) >> shift;
rlm@1	3174 if (intensity)
rlm@1	3175 goto draw_outline; // speedup?
rlm@1	3176 }
rlm@1	3177 }
rlm@1	3178
rlm@1	3179 draw_outline:
rlm@1	3180 if (intensity)
rlm@1	3181 {
rlm@1	3182 //int xdraw = max(0,min(LUA_SCREEN_WIDTH - 1,x+x2));
rlm@1	3183 //int ydraw = max(0,min(LUA_SCREEN_HEIGHT - 1,y+y2));
rlm@1	3184 //gui_drawpixel_fast(xdraw, ydraw, backcolor);
rlm@1	3185 gui_drawpixel_internal(x + x2, y + y2, backcolor);
rlm@1	3186 }
rlm@1	3187 }
rlm@1	3188 }
rlm@1	3189 }
rlm@1	3190
rlm@1	3191 x += 4;
rlm@1	3192 len--;
rlm@1	3193 }
rlm@1	3194 }
rlm@1	3195
rlm@1	3196 static int strlinelen(const char *string)
rlm@1	3197 {
rlm@1	3198 const char *s = string;
rlm@1	3199 while (s && s != '\n')
rlm@1	3200 s++;
rlm@1	3201 if (*s)
rlm@1	3202 s++;
rlm@1	3203 return s - string;
rlm@1	3204 }
rlm@1	3205
rlm@1	3206 static void LuaDisplayString(const char *string, int y, int x, uint32 color, uint32 outlineColor)
rlm@1	3207 {
rlm@1	3208 if (!string)
rlm@1	3209 return;
rlm@1	3210
rlm@1	3211 gui_prepare();
rlm@1	3212
rlm@1	3213 PutTextInternal(string, strlen(string), x, y, color, outlineColor);
rlm@1	3214
rlm@1	3215 /*
rlm@1	3216 const char* ptr = string;
rlm@1	3217 while(*ptr && y < LUA_SCREEN_HEIGHT)
rlm@1	3218 {
rlm@1	3219 int len = strlinelen(ptr);
rlm@1	3220 int skip = 0;
rlm@1	3221 if(len < 1) len = 1;
rlm@1	3222
rlm@1	3223 // break up the line if it's too long to display otherwise
rlm@1	3224 if(len > 63)
rlm@1	3225 {
rlm@1	3226 len = 63;
rlm@1	3227 const char* ptr2 = ptr + len-1;
rlm@1	3228 for(int j = len-1; j; j--, ptr2--)
rlm@1	3229 {
rlm@1	3230 if(ptr2 == ' ' \|\| ptr2 == '\t')
rlm@1	3231 {
rlm@1	3232 len = j;
rlm@1	3233 skip = 1;
rlm@1	3234 break;
rlm@1	3235 }
rlm@1	3236 }
rlm@1	3237 }
rlm@1	3238
rlm@1	3239 int xl = 0;
rlm@1	3240 int yl = 0;
rlm@1	3241 int xh = (LUA_SCREEN_WIDTH - 1 - 1) - 4*len;
rlm@1	3242 int yh = LUA_SCREEN_HEIGHT - 1;
rlm@1	3243 int x2 = min(max(x,xl),xh);
rlm@1	3244 int y2 = min(max(y,yl),yh);
rlm@1	3245
rlm@1	3246 PutTextInternal(ptr,len,x2,y2,color,outlineColor);
rlm@1	3247
rlm@1	3248 ptr += len + skip;
rlm@1	3249 y += 8;
rlm@1	3250 }
rlm@1	3251 */
rlm@1	3252 }
rlm@1	3253
rlm@1	3254 // gui.text(int x, int y, string msg)
rlm@1	3255 //
rlm@1	3256 // Displays the given text on the screen, using the same font and techniques as the
rlm@1	3257
rlm@1	3258 // main HUD.
rlm@1	3259 static int gui_text(lua_State *L)
rlm@1	3260 {
rlm@1	3261 //extern int font_height;
rlm@1	3262 const char *msg;
rlm@1	3263 int x, y;
rlm@1	3264 uint32 colour, borderColour;
rlm@1	3265
rlm@1	3266 x = luaL_checkinteger(L, 1);
rlm@1	3267 y = luaL_checkinteger(L, 2);
rlm@1	3268 //msg = luaL_checkstring(L, 3);
rlm@1	3269 msg = toCString(L, 3);
rlm@1	3270
rlm@1	3271 // if (x < 0 \|\| x >= LUA_SCREEN_WIDTH \|\| y < 0 \|\| y >= (LUA_SCREEN_HEIGHT - font_height))
rlm@1	3272 // luaL_error(L,"bad coordinates");
rlm@1	3273 colour = gui_optcolour(L, 4, LUA_BUILD_PIXEL(255, 255, 255, 255));
rlm@1	3274 borderColour = gui_optcolour(L, 5, LUA_BUILD_PIXEL(255, 0, 0, 0));
rlm@1	3275
rlm@1	3276 gui_prepare();
rlm@1	3277
rlm@1	3278 LuaDisplayString(msg, y, x, colour, borderColour);
rlm@1	3279
rlm@1	3280 return 0;
rlm@1	3281 }
rlm@1	3282
rlm@1	3283 // gui.gdoverlay([int dx=0, int dy=0,] string str [, sx=0, sy=0, sw, sh] [, float alphamul=1.0])
rlm@1	3284 //
rlm@1	3285 // Overlays the given image on the screen.
rlm@1	3286
rlm@1	3287 // example: gui.gdoverlay(gd.createFromPng("myimage.png"):gdStr())
rlm@1	3288 static int gui_gdoverlay(lua_State *L)
rlm@1	3289 {
rlm@1	3290 int argCount = lua_gettop(L);
rlm@1	3291
rlm@1	3292 int xStartDst = 0;
rlm@1	3293 int yStartDst = 0;
rlm@1	3294 int xStartSrc = 0;
rlm@1	3295 int yStartSrc = 0;
rlm@1	3296
rlm@1	3297 int index = 1;
rlm@1	3298 if (lua_type(L, index) == LUA_TNUMBER)
rlm@1	3299 {
rlm@1	3300 xStartDst = lua_tointeger(L, index++);
rlm@1	3301 if (lua_type(L, index) == LUA_TNUMBER)
rlm@1	3302 yStartDst = lua_tointeger(L, index++);
rlm@1	3303 }
rlm@1	3304
rlm@1	3305 luaL_checktype(L, index, LUA_TSTRING);
rlm@1	3306
rlm@1	3307 const unsigned char ptr = (const unsigned char )lua_tostring(L, index++);
rlm@1	3308
rlm@1	3309 if (ptr[0] != 255 \|\| (ptr[1] != 254 && ptr[1] != 255))
rlm@1	3310 luaL_error(L, "bad image data");
rlm@1	3311
rlm@1	3312 bool trueColor = (ptr[1] == 254);
rlm@1	3313 ptr += 2;
rlm@1	3314
rlm@1	3315 int imgwidth = *ptr++ << 8;
rlm@1	3316 imgwidth \|= *ptr++;
rlm@1	3317
rlm@1	3318 int width = imgwidth;
rlm@1	3319 int imgheight = *ptr++ << 8;
rlm@1	3320 imgheight \|= *ptr++;
rlm@1	3321
rlm@1	3322 int height = imgheight;
rlm@1	3323 if ((!trueColor && ptr) \|\| (trueColor && !ptr))
rlm@1	3324 luaL_error(L, "bad image data");
rlm@1	3325 ptr++;
rlm@1	3326
rlm@1	3327 int pitch = imgwidth * (trueColor ? 4 : 1);
rlm@1	3328
rlm@1	3329 if ((argCount - index + 1) >= 4)
rlm@1	3330 {
rlm@1	3331 xStartSrc = luaL_checkinteger(L, index++);
rlm@1	3332 yStartSrc = luaL_checkinteger(L, index++);
rlm@1	3333 width = luaL_checkinteger(L, index++);
rlm@1	3334 height = luaL_checkinteger(L, index++);
rlm@1	3335 }
rlm@1	3336
rlm@1	3337 int alphaMul = transparencyModifier;
rlm@1	3338 if (lua_isnumber(L, index))
rlm@1	3339 alphaMul = (int)(alphaMul * lua_tonumber(L, index++));
rlm@1	3340 if (alphaMul <= 0)
rlm@1	3341 return 0;
rlm@1	3342
rlm@1	3343 // since there aren't that many possible opacity levels,
rlm@1	3344 // do the opacity modification calculations beforehand instead of per pixel
rlm@1	3345 int opacMap[256];
rlm@1	3346 for (int i = 0; i < 128; i++)
rlm@1	3347 {
rlm@1	3348 int opac = 255 - ((i << 1) \| (i & 1)); // gdAlphaMax = 127, not 255
rlm@1	3349 opac = (opac * alphaMul) / 255;
rlm@1	3350 if (opac < 0)
rlm@1	3351 opac = 0;
rlm@1	3352 if (opac > 255)
rlm@1	3353 opac = 255;
rlm@1	3354 opacMap[i] = opac;
rlm@1	3355 }
rlm@1	3356
rlm@1	3357 for (int i = 128; i < 256; i++)
rlm@1	3358 opacMap[i] = 0; // what should we do for them, actually?
rlm@1	3359 int colorsTotal = 0;
rlm@1	3360 if (!trueColor)
rlm@1	3361 {
rlm@1	3362 colorsTotal = *ptr++ << 8;
rlm@1	3363 colorsTotal \|= *ptr++;
rlm@1	3364 }
rlm@1	3365
rlm@1	3366 int transparent = *ptr++ << 24;
rlm@1	3367 transparent \|= *ptr++ << 16;
rlm@1	3368 transparent \|= *ptr++ << 8;
rlm@1	3369 transparent \|= *ptr++;
rlm@1	3370 struct
rlm@1	3371 {
rlm@1	3372 uint8 r, g, b, a;
rlm@1	3373 } pal[256];
rlm@1	3374 if (!trueColor)
rlm@1	3375 for (int i = 0; i < 256; i++)
rlm@1	3376 {
rlm@1	3377 pal[i].r = *ptr++;
rlm@1	3378 pal[i].g = *ptr++;
rlm@1	3379 pal[i].b = *ptr++;
rlm@1	3380 pal[i].a = opacMap[*ptr++];
rlm@1	3381 }
rlm@1	3382
rlm@1	3383 // some of clippings
rlm@1	3384 if (xStartSrc < 0)
rlm@1	3385 {
rlm@1	3386 width += xStartSrc;
rlm@1	3387 xStartDst -= xStartSrc;
rlm@1	3388 xStartSrc = 0;
rlm@1	3389 }
rlm@1	3390
rlm@1	3391 if (yStartSrc < 0)
rlm@1	3392 {
rlm@1	3393 height += yStartSrc;
rlm@1	3394 yStartDst -= yStartSrc;
rlm@1	3395 yStartSrc = 0;
rlm@1	3396 }
rlm@1	3397
rlm@1	3398 if (xStartSrc + width >= imgwidth)
rlm@1	3399 width = imgwidth - xStartSrc;
rlm@1	3400 if (yStartSrc + height >= imgheight)
rlm@1	3401 height = imgheight - yStartSrc;
rlm@1	3402 if (xStartDst < 0)
rlm@1	3403 {
rlm@1	3404 width += xStartDst;
rlm@1	3405 if (width <= 0)
rlm@1	3406 return 0;
rlm@1	3407 xStartSrc = -xStartDst;
rlm@1	3408 xStartDst = 0;
rlm@1	3409 }
rlm@1	3410
rlm@1	3411 if (yStartDst < 0)
rlm@1	3412 {
rlm@1	3413 height += yStartDst;
rlm@1	3414 if (height <= 0)
rlm@1	3415 return 0;
rlm@1	3416 yStartSrc = -yStartDst;
rlm@1	3417 yStartDst = 0;
rlm@1	3418 }
rlm@1	3419
rlm@1	3420 if (xStartDst + width >= LUA_SCREEN_WIDTH)
rlm@1	3421 width = LUA_SCREEN_WIDTH - xStartDst;
rlm@1	3422 if (yStartDst + height >= LUA_SCREEN_HEIGHT)
rlm@1	3423 height = LUA_SCREEN_HEIGHT - yStartDst;
rlm@1	3424 if (width <= 0 \|\| height <= 0)
rlm@1	3425 return 0; // out of screen or invalid size
rlm@1	3426 gui_prepare();
rlm@1	3427
rlm@1	3428 const uint8 pix = (const uint8 )(&ptr[yStartSrc * pitch + (xStartSrc * (trueColor ? 4 : 1))]);
rlm@1	3429 int bytesToNextLine = pitch - (width * (trueColor ? 4 : 1));
rlm@1	3430 if (trueColor)
rlm@1	3431 {
rlm@1	3432 for (int y = yStartDst; y < height + yStartDst && y < LUA_SCREEN_HEIGHT; y++, pix += bytesToNextLine)
rlm@1	3433 {
rlm@1	3434 for (int x = xStartDst; x < width + xStartDst && x < LUA_SCREEN_WIDTH; x++, pix += 4)
rlm@1	3435 {
rlm@1	3436 gui_drawpixel_fast(x, y, LUA_BUILD_PIXEL(opacMap[pix[0]], pix[1], pix[2], pix[3]));
rlm@1	3437 }
rlm@1	3438 }
rlm@1	3439 }
rlm@1	3440 else
rlm@1	3441 {
rlm@1	3442 for (int y = yStartDst; y < height + yStartDst && y < LUA_SCREEN_HEIGHT; y++, pix += bytesToNextLine)
rlm@1	3443 {
rlm@1	3444 for (int x = xStartDst; x < width + xStartDst && x < LUA_SCREEN_WIDTH; x++, pix++)
rlm@1	3445 {
rlm@1	3446 gui_drawpixel_fast(x, y, LUA_BUILD_PIXEL(pal[pix].a, pal[pix].r, pal[pix].g, pal[pix].b));
rlm@1	3447 }
rlm@1	3448 }
rlm@1	3449 }
rlm@1	3450
rlm@1	3451 return 0;
rlm@1	3452 }
rlm@1	3453
rlm@1	3454 // function gui.register(function f)
rlm@1	3455 //
rlm@1	3456 // This function will be called just before a graphical update.
rlm@1	3457 // More complicated, but doesn't suffer any frame delays.
rlm@1	3458 // Nil will be accepted in place of a function to erase
rlm@1	3459 // a previously registered function, and the previous function
rlm@1	3460
rlm@1	3461 // (if any) is returned, or nil if none.
rlm@1	3462 static int gui_register(lua_State *L)
rlm@1	3463 {
rlm@1	3464 // We'll do this straight up.
rlm@1	3465 // First set up the stack.
rlm@1	3466 lua_settop(L, 1);
rlm@1	3467
rlm@1	3468 // Verify the validity of the entry
rlm@1	3469 if (!lua_isnil(L, 1))
rlm@1	3470 luaL_checktype(L, 1, LUA_TFUNCTION);
rlm@1	3471
rlm@1	3472 // Get the old value
rlm@1	3473 lua_getfield(L, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	3474
rlm@1	3475 // Save the new value
rlm@1	3476 lua_pushvalue(L, 1);
rlm@1	3477 lua_setfield(L, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	3478
rlm@1	3479 // The old value is on top of the stack. Return it.
rlm@1	3480 return 1;
rlm@1	3481 }
rlm@1	3482
rlm@1	3483 // string gui.popup(string message, [string type = "ok"])
rlm@1	3484 //
rlm@1	3485
rlm@1	3486 // Popup dialog!
rlm@1	3487 int gui_popup(lua_State *L)
rlm@1	3488 {
rlm@1	3489 const char *message = luaL_checkstring(L, 1);
rlm@1	3490 const char *type = luaL_optstring(L, 2, "ok");
rlm@1	3491
rlm@1	3492 #if (defined(WIN32) && !defined(SDL))
rlm@1	3493 int t;
rlm@1	3494 if (strcmp(type, "ok") == 0)
rlm@1	3495 t = MB_OK;
rlm@1	3496 else if (strcmp(type, "yesno") == 0)
rlm@1	3497 t = MB_YESNO;
rlm@1	3498 else if (strcmp(type, "yesnocancel") == 0)
rlm@1	3499 t = MB_YESNOCANCEL;
rlm@1	3500 else
rlm@1	3501 return luaL_error(L, "invalid popup type \"%s\"", type);
rlm@1	3502
rlm@1	3503 theApp.winCheckFullscreen();
rlm@1	3504 systemSoundClearBuffer();
rlm@1	3505 int result = AfxGetApp()->m_pMainWnd->MessageBox(message, "Lua Script Pop-up", t);
rlm@1	3506
rlm@1	3507 lua_settop(L, 1);
rlm@1	3508
rlm@1	3509 if (t != MB_OK)
rlm@1	3510 {
rlm@1	3511 if (result == IDYES)
rlm@1	3512 lua_pushstring(L, "yes");
rlm@1	3513 else if (result == IDNO)
rlm@1	3514 lua_pushstring(L, "no");
rlm@1	3515 else if (result == IDCANCEL)
rlm@1	3516 lua_pushstring(L, "cancel");
rlm@1	3517 else
rlm@1	3518 luaL_error(L, "win32 unrecognized return value %d", result);
rlm@1	3519 return 1;
rlm@1	3520 }
rlm@1	3521
rlm@1	3522 // else, we don't care.
rlm@1	3523 return 0;
rlm@1	3524 #else
rlm@1	3525 char *t;
rlm@1	3526 #ifdef __linux
rlm@1	3527 // The Linux backend has a "FromPause" variable.
rlm@1	3528 // If set to 1, assume some known external event has screwed with the flow of time.
rlm@1	3529 // Since this pauses the emulator waiting for a response, we set it to 1.
rlm@1	3530 // FIXME: Well, actually it doesn't
rlm@1	3531 // extern int FromPause;
rlm@1	3532 // FromPause = 1;
rlm@1	3533
rlm@1	3534 int pid; // appease compiler
rlm@1	3535
rlm@1	3536 // Before doing any work, verify the correctness of the parameters.
rlm@1	3537 if (strcmp(type, "ok") == 0)
rlm@1	3538 t = "OK:100";
rlm@1	3539 else if (strcmp(type, "yesno") == 0)
rlm@1	3540 t = "Yes:100,No:101";
rlm@1	3541 else if (strcmp(type, "yesnocancel") == 0)
rlm@1	3542 t = "Yes:100,No:101,Cancel:102";
rlm@1	3543 else
rlm@1	3544 return luaL_error(L, "invalid popup type \"%s\"", type);
rlm@1	3545
rlm@1	3546 // Can we find a copy of xmessage? Search the path.
rlm@1	3547 char *path = strdup(getenv("PATH"));
rlm@1	3548
rlm@1	3549 char *current = path;
rlm@1	3550
rlm@1	3551 char *colon;
rlm@1	3552
rlm@1	3553 int found = 0;
rlm@1	3554
rlm@1	3555 while (current)
rlm@1	3556 {
rlm@1	3557 colon = strchr(current, ':');
rlm@1	3558
rlm@1	3559 // Clip off the colon.
rlm@1	3560 *colon++ = 0;
rlm@1	3561
rlm@1	3562 int len = strlen(current);
rlm@1	3563 char filename = (char )malloc(len + 12); // always give excess
rlm@1	3564 snprintf(filename, len + 12, "%s/xmessage", current);
rlm@1	3565
rlm@1	3566 if (access(filename, X_OK) == 0)
rlm@1	3567 {
rlm@1	3568 free(filename);
rlm@1	3569 found = 1;
rlm@1	3570 break;
rlm@1	3571 }
rlm@1	3572
rlm@1	3573 // Failed, move on.
rlm@1	3574 current = colon;
rlm@1	3575 free(filename);
rlm@1	3576 }
rlm@1	3577
rlm@1	3578 free(path);
rlm@1	3579
rlm@1	3580 // We've found it?
rlm@1	3581 if (!found)
rlm@1	3582 goto use_console;
rlm@1	3583
rlm@1	3584 pid = fork();
rlm@1	3585 if (pid == 0)
rlm@1	3586 { // I'm the virgin sacrifice
rlm@1	3587 // I'm gonna be dead in a matter of microseconds anyways, so wasted memory doesn't matter to me.
rlm@1	3588 // Go ahead and abuse strdup.
rlm@1	3589 char *parameters[] = { "xmessage", "-buttons", t, strdup(message), NULL };
rlm@1	3590
rlm@1	3591 execvp("xmessage", parameters);
rlm@1	3592
rlm@1	3593 // Aw shitty
rlm@1	3594 perror("exec xmessage");
rlm@1	3595 exit(1);
rlm@1	3596 }
rlm@1	3597 else if (pid < 0) // something went wrong!!! Oh hell... use the console
rlm@1	3598 goto use_console;
rlm@1	3599 else
rlm@1	3600 {
rlm@1	3601 // We're the parent. Watch for the child.
rlm@1	3602 int r;
rlm@1	3603 int res = waitpid(pid, &r, 0);
rlm@1	3604 if (res < 0) // wtf?
rlm@1	3605 goto use_console;
rlm@1	3606
rlm@1	3607 // The return value gets copmlicated...
rlm@1	3608 if (!WIFEXITED(r))
rlm@1	3609 {
rlm@1	3610 luaL_error(L, "don't screw with my xmessage process!");
rlm@1	3611 }
rlm@1	3612
rlm@1	3613 r = WEXITSTATUS(r);
rlm@1	3614
rlm@1	3615 // We assume it's worked.
rlm@1	3616 if (r == 0)
rlm@1	3617 {
rlm@1	3618 return 0; // no parameters for an OK
rlm@1	3619 }
rlm@1	3620
rlm@1	3621 if (r == 100)
rlm@1	3622 {
rlm@1	3623 lua_pushstring(L, "yes");
rlm@1	3624 return 1;
rlm@1	3625 }
rlm@1	3626
rlm@1	3627 if (r == 101)
rlm@1	3628 {
rlm@1	3629 lua_pushstring(L, "no");
rlm@1	3630 return 1;
rlm@1	3631 }
rlm@1	3632
rlm@1	3633 if (r == 102)
rlm@1	3634 {
rlm@1	3635 lua_pushstring(L, "cancel");
rlm@1	3636 return 1;
rlm@1	3637 }
rlm@1	3638
rlm@1	3639 // Wtf?
rlm@1	3640 return luaL_error(L, "popup failed due to unknown results involving xmessage (%d)", r);
rlm@1	3641 }
rlm@1	3642
rlm@1	3643 use_console:
rlm@1	3644 #endif
rlm@1	3645
rlm@1	3646 // All else has failed
rlm@1	3647 if (strcmp(type, "ok") == 0)
rlm@1	3648 t = "";
rlm@1	3649 else if (strcmp(type, "yesno") == 0)
rlm@1	3650 t = "yn";
rlm@1	3651 else if (strcmp(type, "yesnocancel") == 0)
rlm@1	3652 t = "ync";
rlm@1	3653 else
rlm@1	3654 return luaL_error(L, "invalid popup type \"%s\"", type);
rlm@1	3655
rlm@1	3656 fprintf(stderr, "Lua Message: %s\n", message);
rlm@1	3657
rlm@1	3658 while (true)
rlm@1	3659 {
rlm@1	3660 char buffer[64];
rlm@1	3661
rlm@1	3662 // We don't want parameters
rlm@1	3663 if (!t[0])
rlm@1	3664 {
rlm@1	3665 fprintf(stderr, "[Press Enter]");
rlm@1	3666 fgets(buffer, sizeof(buffer), stdin);
rlm@1	3667
rlm@1	3668 // We're done
rlm@1	3669 return 0;
rlm@1	3670 }
rlm@1	3671
rlm@1	3672 fprintf(stderr, "(%s): ", t);
rlm@1	3673 fgets(buffer, sizeof(buffer), stdin);
rlm@1	3674
rlm@1	3675 // Check if the option is in the list
rlm@1	3676 if (strchr(t, tolower(buffer[0])))
rlm@1	3677 {
rlm@1	3678 switch (tolower(buffer[0]))
rlm@1	3679 {
rlm@1	3680 case 'y':
rlm@1	3681 lua_pushstring(L, "yes");
rlm@1	3682 return 1;
rlm@1	3683 case 'n':
rlm@1	3684 lua_pushstring(L, "no");
rlm@1	3685 return 1;
rlm@1	3686 case 'c':
rlm@1	3687 lua_pushstring(L, "cancel");
rlm@1	3688 return 1;
rlm@1	3689 default:
rlm@1	3690 luaL_error(L, "internal logic error in console based prompts for gui.popup");
rlm@1	3691 }
rlm@1	3692 }
rlm@1	3693
rlm@1	3694 // We fell through, so we assume the user answered wrong and prompt again.
rlm@1	3695 }
rlm@1	3696
rlm@1	3697 // Nothing here, since the only way out is in the loop.
rlm@1	3698 #endif
rlm@1	3699 }
rlm@1	3700
rlm@1	3701 #if (defined(WIN32) && !defined(SDL))
rlm@1	3702 const char *s_keyToName[256] =
rlm@1	3703 {
rlm@1	3704 NULL,
rlm@1	3705 "leftclick",
rlm@1	3706 "rightclick",
rlm@1	3707 NULL,
rlm@1	3708 "middleclick",
rlm@1	3709 NULL,
rlm@1	3710 NULL,
rlm@1	3711 NULL,
rlm@1	3712 "backspace",
rlm@1	3713 "tab",
rlm@1	3714 NULL,
rlm@1	3715 NULL,
rlm@1	3716 NULL,
rlm@1	3717 "enter",
rlm@1	3718 NULL,
rlm@1	3719 NULL,
rlm@1	3720 "shift", // 0x10
rlm@1	3721 "control",
rlm@1	3722 "alt",
rlm@1	3723 "pause",
rlm@1	3724 "capslock",
rlm@1	3725 NULL,
rlm@1	3726 NULL,
rlm@1	3727 NULL,
rlm@1	3728 NULL,
rlm@1	3729 NULL,
rlm@1	3730 NULL,
rlm@1	3731 "escape",
rlm@1	3732 NULL,
rlm@1	3733 NULL,
rlm@1	3734 NULL,
rlm@1	3735 NULL,
rlm@1	3736 "space", // 0x20
rlm@1	3737 "pageup",
rlm@1	3738 "pagedown",
rlm@1	3739 "end",
rlm@1	3740 "home",
rlm@1	3741 "left",
rlm@1	3742 "up",
rlm@1	3743 "right",
rlm@1	3744 "down",
rlm@1	3745 NULL,
rlm@1	3746 NULL,
rlm@1	3747 NULL,
rlm@1	3748 NULL,
rlm@1	3749 "insert",
rlm@1	3750 "delete",
rlm@1	3751 NULL,
rlm@1	3752 "0", "1", "2", "3", "4", "5", "6", "7", "8", "9",
rlm@1	3753 NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3754 "A", "B", "C", "D", "E", "F", "G", "H", "I", "J",
rlm@1	3755 "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T",
rlm@1	3756 "U", "V", "W", "X", "Y", "Z",
rlm@1	3757 NULL,
rlm@1	3758 NULL,
rlm@1	3759 NULL,
rlm@1	3760 NULL,
rlm@1	3761 NULL,
rlm@1	3762 "numpad0", "numpad1", "numpad2", "numpad3", "numpad4", "numpad5", "numpad6", "numpad7", "numpad8", "numpad9",
rlm@1	3763 "numpad*", "numpad+",
rlm@1	3764 NULL,
rlm@1	3765 "numpad-", "numpad.", "numpad/",
rlm@1	3766 "F1", "F2", "F3", "F4", "F5", "F6", "F7", "F8", "F9", "F10", "F11",
rlm@1	3767 "F12",
rlm@1	3768 "F13", "F14", "F15", "F16", "F17", "F18", "F19", "F20", "F21", "F22", "F23",
rlm@1	3769 "F24",
rlm@1	3770 NULL,
rlm@1	3771 NULL,
rlm@1	3772 NULL,
rlm@1	3773 NULL,
rlm@1	3774 NULL,
rlm@1	3775 NULL,
rlm@1	3776 NULL,
rlm@1	3777 NULL,
rlm@1	3778 "numlock",
rlm@1	3779 "scrolllock",
rlm@1	3780 NULL, // 0x92
rlm@1	3781 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3782 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3783 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3784 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3785 NULL, // 0xB9
rlm@1	3786 "semicolon",
rlm@1	3787 "plus",
rlm@1	3788 "comma",
rlm@1	3789 "minus",
rlm@1	3790 "period",
rlm@1	3791 "slash",
rlm@1	3792 "tilde",
rlm@1	3793 NULL, // 0xC1
rlm@1	3794 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3795 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3796 NULL, NULL, NULL, NULL, NULL, NULL, NULL,
rlm@1	3797 NULL, // 0xDA
rlm@1	3798 "leftbracket",
rlm@1	3799 "backslash",
rlm@1	3800 "rightbracket",
rlm@1	3801 "quote",
rlm@1	3802 };
rlm@1	3803 #endif
rlm@1	3804
rlm@1	3805 // input.get()
rlm@1	3806 // takes no input, returns a lua table of entries representing the current input state,
rlm@1	3807 // independent of the joypad buttons the emulated game thinks are pressed
rlm@1	3808 // for example:
rlm@1	3809 // if the user is holding the W key and the left mouse button
rlm@1	3810 // and has the mouse at the bottom-right corner of the game screen,
rlm@1	3811
rlm@1	3812 // then this would return {W=true, leftclick=true, xmouse=255, ymouse=223}
rlm@1	3813 static int input_getcurrentinputstatus(lua_State *L)
rlm@1	3814 {
rlm@1	3815 lua_newtable(L);
rlm@1	3816
rlm@1	3817 #if (defined(WIN32) && !defined(SDL))
rlm@1	3818 // keyboard and mouse button status
rlm@1	3819 {
rlm@1	3820 unsigned char keys[256];
rlm@1	3821 if (true /!GUI.BackgroundInput/) // TODO: background input
rlm@1	3822 {
rlm@1	3823 if (GetKeyboardState(keys))
rlm@1	3824 {
rlm@1	3825 for (int i = 1; i < 255; i++)
rlm@1	3826 {
rlm@1	3827 int mask = (i == VK_CAPITAL \|\| i == VK_NUMLOCK \|\| i == VK_SCROLL) ? 0x01 : 0x80;
rlm@1	3828 if (keys[i] & mask)
rlm@1	3829 {
rlm@1	3830 const char *name = s_keyToName[i];
rlm@1	3831 if (name)
rlm@1	3832 {
rlm@1	3833 lua_pushboolean(L, true);
rlm@1	3834 lua_setfield(L, -2, name);
rlm@1	3835 }
rlm@1	3836 }
rlm@1	3837 }
rlm@1	3838 }
rlm@1	3839 }
rlm@1	3840 else // use a slightly different method that will detect background input:
rlm@1	3841 {
rlm@1	3842 for (int i = 1; i < 255; i++)
rlm@1	3843 {
rlm@1	3844 const char *name = s_keyToName[i];
rlm@1	3845 if (name)
rlm@1	3846 {
rlm@1	3847 int active;
rlm@1	3848 if (i == VK_CAPITAL \|\| i == VK_NUMLOCK \|\| i == VK_SCROLL)
rlm@1	3849 active = GetKeyState(i) & 0x01;
rlm@1	3850 else
rlm@1	3851 active = GetAsyncKeyState(i) & 0x8000;
rlm@1	3852 if (active)
rlm@1	3853 {
rlm@1	3854 lua_pushboolean(L, true);
rlm@1	3855 lua_setfield(L, -2, name);
rlm@1	3856 }
rlm@1	3857 }
rlm@1	3858 }
rlm@1	3859 }
rlm@1	3860 }
rlm@1	3861
rlm@1	3862 // mouse position in game screen pixel coordinates
rlm@1	3863 {
rlm@1	3864 POINT mouse;
rlm@1	3865
rlm@1	3866 int xofs = 0, yofs = 0, width = 240, height = 160;
rlm@1	3867 if (!systemIsRunningGBA())
rlm@1	3868 {
rlm@1	3869 if (gbBorderOn)
rlm@1	3870 width = 256, height = 224, xofs = 48, yofs = 40;
rlm@1	3871 else
rlm@1	3872 width = 160, height = 144;
rlm@1	3873 }
rlm@1	3874
rlm@1	3875 GetCursorPos(&mouse);
rlm@1	3876 AfxGetApp()->m_pMainWnd->ScreenToClient(&mouse);
rlm@1	3877
rlm@1	3878 // game screen is always fully stretched to window size,
rlm@1	3879 // with no aspect rate correction, or something like that.
rlm@1	3880 RECT clientRect;
rlm@1	3881 AfxGetApp()->m_pMainWnd->GetClientRect(&clientRect);
rlm@1	3882
rlm@1	3883 int wndWidth = clientRect.right - clientRect.left;
rlm@1	3884 int wndHeight = clientRect.bottom - clientRect.top;
rlm@1	3885 mouse.x = (LONG) (mouse.x * ((float)width / wndWidth)) - xofs;
rlm@1	3886 mouse.y = (LONG) (mouse.y * ((float)height / wndHeight)) - yofs;
rlm@1	3887
rlm@1	3888 lua_pushinteger(L, mouse.x);
rlm@1	3889 lua_setfield(L, -2, "xmouse");
rlm@1	3890 lua_pushinteger(L, mouse.y);
rlm@1	3891 lua_setfield(L, -2, "ymouse");
rlm@1	3892 }
rlm@1	3893
rlm@1	3894 #else
rlm@1	3895 // NYI (well, return an empty table)
rlm@1	3896 #endif
rlm@1	3897 return 1;
rlm@1	3898 }
rlm@1	3899
rlm@1	3900 static int avi_framecount(lua_State *L)
rlm@1	3901 {
rlm@1	3902 #ifdef WIN32
rlm@1	3903 if (theApp.aviRecorder != NULL)
rlm@1	3904 {
rlm@1	3905 lua_pushinteger(L, theApp.aviRecorder->videoFrames());
rlm@1	3906 }
rlm@1	3907 else
rlm@1	3908 #endif
rlm@1	3909 {
rlm@1	3910 lua_pushinteger(L, 0);
rlm@1	3911 }
rlm@1	3912 return 1;
rlm@1	3913 }
rlm@1	3914
rlm@1	3915 static int avi_pause(lua_State *L)
rlm@1	3916 {
rlm@1	3917 #ifdef WIN32
rlm@1	3918 if (theApp.aviRecorder != NULL)
rlm@1	3919 theApp.aviRecorder->Pause(true);
rlm@1	3920 #endif
rlm@1	3921 return 1;
rlm@1	3922 }
rlm@1	3923
rlm@1	3924 static int avi_resume(lua_State *L)
rlm@1	3925 {
rlm@1	3926 #ifdef WIN32
rlm@1	3927 if (theApp.aviRecorder != NULL)
rlm@1	3928 theApp.aviRecorder->Pause(false);
rlm@1	3929 #endif
rlm@1	3930 return 1;
rlm@1	3931 }
rlm@1	3932
rlm@1	3933 static int sound_get(lua_State *L)
rlm@1	3934 {
rlm@1	3935 extern int32 soundLevel1;
rlm@1	3936 extern int32 soundLevel2;
rlm@1	3937 extern int32 soundBalance;
rlm@1	3938 extern int32 soundMasterOn;
rlm@1	3939 extern int32 soundVIN;
rlm@1	3940 extern int32 sound1On;
rlm@1	3941 extern int32 sound1EnvelopeVolume;
rlm@1	3942 extern int32 sound2On;
rlm@1	3943 extern int32 sound2EnvelopeVolume;
rlm@1	3944 extern int32 sound3On;
rlm@1	3945 extern int32 sound3OutputLevel;
rlm@1	3946 extern int32 sound3Bank;
rlm@1	3947 extern int32 sound3DataSize;
rlm@1	3948 extern int32 sound3ForcedOutput;
rlm@1	3949 extern int32 sound4On;
rlm@1	3950 extern int32 sound4EnvelopeVolume;
rlm@1	3951 extern u8 sound3WaveRam[0x20];
rlm@1	3952
rlm@1	3953 int freqReg;
rlm@1	3954 double freq;
rlm@1	3955 double leftvolscale;
rlm@1	3956 double rightvolscale;
rlm@1	3957 double panpot;
rlm@1	3958 bool gba = systemIsRunningGBA();
rlm@1	3959 u8* gbMem = gba ? ioMem : gbMemory;
rlm@1	3960 const int rNR10 = gba ? 0x60 : 0xff10;
rlm@1	3961 const int rNR11 = gba ? 0x62 : 0xff11;
rlm@1	3962 const int rNR12 = gba ? 0x63 : 0xff12;
rlm@1	3963 const int rNR13 = gba ? 0x64 : 0xff13;
rlm@1	3964 const int rNR14 = gba ? 0x65 : 0xff14;
rlm@1	3965 const int rNR21 = gba ? 0x68 : 0xff16;
rlm@1	3966 const int rNR22 = gba ? 0x69 : 0xff17;
rlm@1	3967 const int rNR23 = gba ? 0x6c : 0xff18;
rlm@1	3968 const int rNR24 = gba ? 0x6d : 0xff19;
rlm@1	3969 const int rNR30 = gba ? 0x70 : 0xff1a;
rlm@1	3970 const int rNR31 = gba ? 0x72 : 0xff1b;
rlm@1	3971 const int rNR32 = gba ? 0x73 : 0xff1c;
rlm@1	3972 const int rNR33 = gba ? 0x74 : 0xff1d;
rlm@1	3973 const int rNR34 = gba ? 0x75 : 0xff1e;
rlm@1	3974 const int rNR41 = gba ? 0x78 : 0xff20;
rlm@1	3975 const int rNR42 = gba ? 0x79 : 0xff21;
rlm@1	3976 const int rNR43 = gba ? 0x7c : 0xff22;
rlm@1	3977 const int rNR44 = gba ? 0x7d : 0xff23;
rlm@1	3978 const int rNR50 = gba ? 0x80 : 0xff24;
rlm@1	3979 const int rNR51 = gba ? 0x81 : 0xff25;
rlm@1	3980 const int rNR52 = gba ? 0x84 : 0xff26;
rlm@1	3981 const int rWAVE_RAM = gba ? 0x90 : 0xff30;
rlm@1	3982
rlm@1	3983 const int32 _soundVIN = 0x88; // gba ? 0x88 : soundVIN;
rlm@1	3984 const bool soundVINLeft = ((_soundVIN & 0x80) != 0);
rlm@1	3985 const bool soundVINRight = ((_soundVIN & 0x08) != 0);
rlm@1	3986
rlm@1	3987 lua_newtable(L);
rlm@1	3988
rlm@1	3989 // square1
rlm@1	3990 lua_newtable(L);
rlm@1	3991 if(sound1On == 0 \|\| soundMasterOn == 0)
rlm@1	3992 {
rlm@1	3993 lua_pushnumber(L, 0.0);
rlm@1	3994 panpot = 0.5;
rlm@1	3995 }
rlm@1	3996 else
rlm@1	3997 {
rlm@1	3998 double envVolume = sound1EnvelopeVolume / 15.0;
rlm@1	3999 if (soundVINLeft && (soundBalance & 0x10) != 0)
rlm@1	4000 leftvolscale = ((soundLevel2 / 7.0) * envVolume);
rlm@1	4001 else
rlm@1	4002 leftvolscale = 0.0;
rlm@1	4003 if (soundVINRight && (soundBalance & 0x01) != 0)
rlm@1	4004 rightvolscale = ((soundLevel1 / 7.0) * envVolume);
rlm@1	4005 else
rlm@1	4006 rightvolscale = 0.0;
rlm@1	4007 if ((leftvolscale + rightvolscale) != 0)
rlm@1	4008 panpot = rightvolscale / (leftvolscale + rightvolscale);
rlm@1	4009 else
rlm@1	4010 panpot = 0.5;
rlm@1	4011 lua_pushnumber(L, (leftvolscale + rightvolscale) / 2.0);
rlm@1	4012 }
rlm@1	4013 lua_setfield(L, -2, "volume");
rlm@1	4014 lua_pushnumber(L, panpot);
rlm@1	4015 lua_setfield(L, -2, "panpot");
rlm@1	4016 freqReg = (((int)(gbMem[rNR14] & 7) << 8) \| gbMem[rNR13]);
rlm@1	4017 freq = 131072.0 / (2048 - freqReg);
rlm@1	4018 lua_pushnumber(L, freq);
rlm@1	4019 lua_setfield(L, -2, "frequency");
rlm@1	4020 lua_pushnumber(L, (log(freq / 440.0) * 12 / log(2.0)) + 69);
rlm@1	4021 lua_setfield(L, -2, "midikey");
rlm@1	4022 lua_pushinteger(L, (gbMem[rNR11] & 0xC0) >> 6);
rlm@1	4023 lua_setfield(L, -2, "duty");
rlm@1	4024 lua_newtable(L);
rlm@1	4025 lua_pushinteger(L, freqReg);
rlm@1	4026 lua_setfield(L, -2, "frequency");
rlm@1	4027 lua_setfield(L, -2, "regs");
rlm@1	4028 lua_setfield(L, -2, "square1");
rlm@1	4029 // square2
rlm@1	4030 lua_newtable(L);
rlm@1	4031 if(sound2On == 0 \|\| soundMasterOn == 0)
rlm@1	4032 {
rlm@1	4033 lua_pushnumber(L, 0.0);
rlm@1	4034 panpot = 0.5;
rlm@1	4035 }
rlm@1	4036 else
rlm@1	4037 {
rlm@1	4038 double envVolume = sound2EnvelopeVolume / 15.0;
rlm@1	4039 if (soundVINLeft && (soundBalance & 0x20) != 0)
rlm@1	4040 leftvolscale = ((soundLevel2 / 7.0) * envVolume);
rlm@1	4041 else
rlm@1	4042 leftvolscale = 0.0;
rlm@1	4043 if (soundVINRight && (soundBalance & 0x02) != 0)
rlm@1	4044 rightvolscale = ((soundLevel1 / 7.0) * envVolume);
rlm@1	4045 else
rlm@1	4046 rightvolscale = 0.0;
rlm@1	4047 if ((leftvolscale + rightvolscale) != 0)
rlm@1	4048 panpot = rightvolscale / (leftvolscale + rightvolscale);
rlm@1	4049 else
rlm@1	4050 panpot = 0.5;
rlm@1	4051 lua_pushnumber(L, (leftvolscale + rightvolscale) / 2.0);
rlm@1	4052 }
rlm@1	4053 lua_setfield(L, -2, "volume");
rlm@1	4054 lua_pushnumber(L, panpot);
rlm@1	4055 lua_setfield(L, -2, "panpot");
rlm@1	4056 freqReg = (((int)(gbMem[rNR24] & 7) << 8) \| gbMem[rNR23]);
rlm@1	4057 freq = 131072.0 / (2048 - freqReg);
rlm@1	4058 lua_pushnumber(L, freq);
rlm@1	4059 lua_setfield(L, -2, "frequency");
rlm@1	4060 lua_pushnumber(L, (log(freq / 440.0) * 12 / log(2.0)) + 69);
rlm@1	4061 lua_setfield(L, -2, "midikey");
rlm@1	4062 lua_pushinteger(L, (gbMem[rNR21] & 0xC0) >> 6);
rlm@1	4063 lua_setfield(L, -2, "duty");
rlm@1	4064 lua_newtable(L);
rlm@1	4065 lua_pushinteger(L, freqReg);
rlm@1	4066 lua_setfield(L, -2, "frequency");
rlm@1	4067 lua_setfield(L, -2, "regs");
rlm@1	4068 lua_setfield(L, -2, "square2");
rlm@1	4069 // wavememory
rlm@1	4070 lua_newtable(L);
rlm@1	4071 if(sound3On == 0 \|\| soundMasterOn == 0)
rlm@1	4072 {
rlm@1	4073 lua_pushnumber(L, 0.0);
rlm@1	4074 panpot = 0.5;
rlm@1	4075 }
rlm@1	4076 else
rlm@1	4077 {
rlm@1	4078 double envVolume;
rlm@1	4079 if (gba && sound3ForcedOutput != 0)
rlm@1	4080 envVolume = 0.75;
rlm@1	4081 else
rlm@1	4082 {
rlm@1	4083 double volTable[4] = { 0.0, 1.0, 0.5, 0.25 };
rlm@1	4084 envVolume = volTable[sound3OutputLevel & 3];
rlm@1	4085 }
rlm@1	4086
rlm@1	4087 if (soundVINLeft && (soundBalance & 0x40) != 0)
rlm@1	4088 leftvolscale = ((soundLevel2 / 7.0) * envVolume);
rlm@1	4089 else
rlm@1	4090 leftvolscale = 0.0;
rlm@1	4091 if (soundVINRight && (soundBalance & 0x04) != 0)
rlm@1	4092 rightvolscale = ((soundLevel1 / 7.0) * envVolume);
rlm@1	4093 else
rlm@1	4094 rightvolscale = 0.0;
rlm@1	4095 if ((leftvolscale + rightvolscale) != 0)
rlm@1	4096 panpot = rightvolscale / (leftvolscale + rightvolscale);
rlm@1	4097 else
rlm@1	4098 panpot = 0.5;
rlm@1	4099 lua_pushnumber(L, (leftvolscale + rightvolscale) / 2.0);
rlm@1	4100 }
rlm@1	4101 lua_setfield(L, -2, "volume");
rlm@1	4102 lua_pushnumber(L, panpot);
rlm@1	4103 lua_setfield(L, -2, "panpot");
rlm@1	4104 int waveMemSamples = 32;
rlm@1	4105 if (gba)
rlm@1	4106 {
rlm@1	4107 lua_pushlstring(L, (const char ) &sound3WaveRam[sound3Bank 0x10], sound3DataSize ? 0x20 : 0x10);
rlm@1	4108 waveMemSamples = sound3DataSize ? 64 : 32;
rlm@1	4109 }
rlm@1	4110 else
rlm@1	4111 {
rlm@1	4112 lua_pushlstring(L, (const char *) &gbMem[rWAVE_RAM], 0x10);
rlm@1	4113 }
rlm@1	4114 lua_setfield(L, -2, "waveform");
rlm@1	4115 freqReg = (((int)(gbMem[rNR34] & 7) << 8) \| gbMem[rNR33]);
rlm@1	4116 freq = 2097152.0 / (waveMemSamples * (2048 - freqReg));
rlm@1	4117 lua_pushnumber(L, freq);
rlm@1	4118 lua_setfield(L, -2, "frequency");
rlm@1	4119 lua_pushnumber(L, (log(freq / 440.0) * 12 / log(2.0)) + 69);
rlm@1	4120 lua_setfield(L, -2, "midikey");
rlm@1	4121 lua_newtable(L);
rlm@1	4122 lua_pushinteger(L, freqReg);
rlm@1	4123 lua_setfield(L, -2, "frequency");
rlm@1	4124 lua_setfield(L, -2, "regs");
rlm@1	4125 lua_setfield(L, -2, "wavememory");
rlm@1	4126 // noise
rlm@1	4127 lua_newtable(L);
rlm@1	4128 if(sound4On == 0 \|\| soundMasterOn == 0)
rlm@1	4129 {
rlm@1	4130 lua_pushnumber(L, 0.0);
rlm@1	4131 panpot = 0.5;
rlm@1	4132 }
rlm@1	4133 else
rlm@1	4134 {
rlm@1	4135 double envVolume = sound4EnvelopeVolume / 15.0;
rlm@1	4136 if (soundVINLeft && (soundBalance & 0x80) != 0)
rlm@1	4137 leftvolscale = ((soundLevel2 / 7.0) * envVolume);
rlm@1	4138 else
rlm@1	4139 leftvolscale = 0.0;
rlm@1	4140 if (soundVINRight && (soundBalance & 0x08) != 0)
rlm@1	4141 rightvolscale = ((soundLevel1 / 7.0) * envVolume);
rlm@1	4142 else
rlm@1	4143 rightvolscale = 0.0;
rlm@1	4144 if ((leftvolscale + rightvolscale) != 0)
rlm@1	4145 panpot = rightvolscale / (leftvolscale + rightvolscale);
rlm@1	4146 else
rlm@1	4147 panpot = 0.5;
rlm@1	4148 lua_pushnumber(L, (leftvolscale + rightvolscale) / 2.0);
rlm@1	4149 }
rlm@1	4150 lua_setfield(L, -2, "volume");
rlm@1	4151 lua_pushnumber(L, panpot);
rlm@1	4152 lua_setfield(L, -2, "panpot");
rlm@1	4153 const int gbNoiseFreqTable[8] = { 1, 2, 4, 6, 8, 10, 12, 14 };
rlm@1	4154 freqReg = gbNoiseFreqTable[gbMem[rNR43] & 7] << (1 + (gbMem[rNR43] >> 4));
rlm@1	4155 lua_pushboolean(L, (gbMem[rNR43] & 8) != 0);
rlm@1	4156 lua_setfield(L, -2, "short");
rlm@1	4157 freq = 1048576.0 / freqReg;
rlm@1	4158 lua_pushnumber(L, freq);
rlm@1	4159 lua_setfield(L, -2, "frequency");
rlm@1	4160 lua_pushnumber(L, (log(freq / 440.0) * 12 / log(2.0)) + 69);
rlm@1	4161 lua_setfield(L, -2, "midikey");
rlm@1	4162 lua_newtable(L);
rlm@1	4163 lua_pushinteger(L, freqReg);
rlm@1	4164 lua_setfield(L, -2, "frequency");
rlm@1	4165 lua_setfield(L, -2, "regs");
rlm@1	4166 lua_setfield(L, -2, "noise");
rlm@1	4167
rlm@1	4168 return 1;
rlm@1	4169 }
rlm@1	4170
rlm@1	4171 // same as math.random, but uses SFMT instead of C rand()
rlm@1	4172 // FIXME: this function doesn't care multi-instance,
rlm@1	4173
rlm@1	4174 // original math.random either though (Lua 5.1)
rlm@1	4175 static int sfmt_random(lua_State *L)
rlm@1	4176 {
rlm@1	4177 lua_Number r = (lua_Number) genrand_real2();
rlm@1	4178 switch (lua_gettop(L))
rlm@1	4179 { // check number of arguments
rlm@1	4180 case 0:
rlm@1	4181 { // no arguments
rlm@1	4182 lua_pushnumber(L, r); // Number between 0 and 1
rlm@1	4183 break;
rlm@1	4184 }
rlm@1	4185
rlm@1	4186 case 1:
rlm@1	4187 { // only upper limit
rlm@1	4188 int u = luaL_checkint(L, 1);
rlm@1	4189 luaL_argcheck(L, 1 <= u, 1, "interval is empty");
rlm@1	4190 lua_pushnumber(L, floor(r * u) + 1); // int between 1 and `u'
rlm@1	4191 break;
rlm@1	4192 }
rlm@1	4193
rlm@1	4194 case 2:
rlm@1	4195 { // lower and upper limits
rlm@1	4196 int l = luaL_checkint(L, 1);
rlm@1	4197 int u = luaL_checkint(L, 2);
rlm@1	4198 luaL_argcheck(L, l <= u, 2, "interval is empty");
rlm@1	4199 lua_pushnumber(L, floor(r * (u - l + 1)) + l); // int between `l' and `u'
rlm@1	4200 break;
rlm@1	4201 }
rlm@1	4202
rlm@1	4203 default:
rlm@1	4204 return luaL_error(L, "wrong number of arguments");
rlm@1	4205 }
rlm@1	4206
rlm@1	4207 return 1;
rlm@1	4208 }
rlm@1	4209
rlm@1	4210 // same as math.randomseed, but uses SFMT instead of C srand()
rlm@1	4211 // FIXME: this function doesn't care multi-instance,
rlm@1	4212
rlm@1	4213 // original math.randomseed either though (Lua 5.1)
rlm@1	4214 static int sfmt_randomseed(lua_State *L)
rlm@1	4215 {
rlm@1	4216 init_gen_rand(luaL_checkint(L, 1));
rlm@1	4217 return 0;
rlm@1	4218 }
rlm@1	4219
rlm@1	4220 // the following bit operations are ported from LuaBitOp 1.0.1,
rlm@1	4221 // because it can handle the sign bit (bit 31) correctly.
rlm@1	4222
rlm@1	4223 /*
rlm@1	4224 ** Lua BitOp -- a bit operations library for Lua 5.1.
rlm@1	4225 ** http://bitop.luajit.org/
rlm@1	4226 **
rlm@1	4227 ** Copyright (C) 2008-2009 Mike Pall. All rights reserved.
rlm@1	4228 **
rlm@1	4229 ** Permission is hereby granted, free of charge, to any person obtaining
rlm@1	4230 ** a copy of this software and associated documentation files (the
rlm@1	4231 ** "Software"), to deal in the Software without restriction, including
rlm@1	4232 ** without limitation the rights to use, copy, modify, merge, publish,
rlm@1	4233 ** distribute, sublicense, and/or sell copies of the Software, and to
rlm@1	4234 ** permit persons to whom the Software is furnished to do so, subject to
rlm@1	4235 ** the following conditions:
rlm@1	4236 **
rlm@1	4237 ** The above copyright notice and this permission notice shall be
rlm@1	4238 ** included in all copies or substantial portions of the Software.
rlm@1	4239 **
rlm@1	4240 ** THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
rlm@1	4241 ** EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
rlm@1	4242 ** MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
rlm@1	4243 ** IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
rlm@1	4244 ** CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
rlm@1	4245 ** TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
rlm@1	4246 ** SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
rlm@1	4247 **
rlm@1	4248 ** [ MIT license: http://www.opensource.org/licenses/mit-license.php ]
rlm@1	4249 */
rlm@1	4250
rlm@1	4251 #ifdef _MSC_VER
rlm@1	4252 /* MSVC is stuck in the last century and doesn't have C99's stdint.h. */
rlm@1	4253 typedef __int32 int32_t;
rlm@1	4254 typedef unsigned __int32 uint32_t;
rlm@1	4255 typedef unsigned __int64 uint64_t;
rlm@1	4256 #else
rlm@1	4257 #include <stdint.h>
rlm@1	4258 #endif
rlm@1	4259
rlm@1	4260 typedef int32_t SBits;
rlm@1	4261 typedef uint32_t UBits;
rlm@1	4262
rlm@1	4263 typedef union
rlm@1	4264 {
rlm@1	4265 lua_Number n;
rlm@1	4266 #ifdef LUA_NUMBER_DOUBLE
rlm@1	4267 uint64_t b;
rlm@1	4268 #else
rlm@1	4269 UBits b;
rlm@1	4270 #endif
rlm@1	4271 } BitNum;
rlm@1	4272
rlm@1	4273 /* Convert argument to bit type. */
rlm@1	4274 static UBits barg(lua_State *L, int idx)
rlm@1	4275 {
rlm@1	4276 BitNum bn;
rlm@1	4277 UBits b;
rlm@1	4278 bn.n = lua_tonumber(L, idx);
rlm@1	4279 #if defined(LUA_NUMBER_DOUBLE)
rlm@1	4280 bn.n += 6755399441055744.0; /* 2^52+2^51 */
rlm@1	4281 #ifdef SWAPPED_DOUBLE
rlm@1	4282 b = (UBits)(bn.b >> 32);
rlm@1	4283 #else
rlm@1	4284 b = (UBits)(bn.b & 0xffffffff);
rlm@1	4285 #endif
rlm@1	4286 #elif defined(LUA_NUMBER_INT) \|\| defined(LUA_NUMBER_LONG) \|\| \
rlm@1	4287 defined(LUA_NUMBER_LONGLONG) \|\| defined(LUA_NUMBER_LONG_LONG) \|\| \
rlm@1	4288 defined(LUA_NUMBER_LLONG)
rlm@1	4289 if (sizeof(UBits) == sizeof(lua_Number))
rlm@1	4290 b = bn.b;
rlm@1	4291 else
rlm@1	4292 b = (UBits)(SBits)bn.n;
rlm@1	4293 #elif defined(LUA_NUMBER_FLOAT)
rlm@1	4294 #error "A 'float' lua_Number type is incompatible with this library"
rlm@1	4295 #else
rlm@1	4296 #error "Unknown number type, check LUA_NUMBER_* in luaconf.h"
rlm@1	4297 #endif
rlm@1	4298 if (b == 0 && !lua_isnumber(L, idx))
rlm@1	4299 luaL_typerror(L, idx, "number");
rlm@1	4300 return b;
rlm@1	4301 }
rlm@1	4302
rlm@1	4303 /* Return bit type. */
rlm@1	4304 #define BRET(b) lua_pushnumber(L, (lua_Number)(SBits)(b)); return 1;
rlm@1	4305
rlm@1	4306 static int bit_tobit(lua_State *L) { BRET(barg(L, 1)) }
rlm@1	4307 static int bit_bnot(lua_State *L) { BRET(~barg(L, 1)) }
rlm@1	4308
rlm@1	4309 #define BIT_OP(func, opr) \
rlm@1	4310 static int func(lua_State * L) { int i; UBits b = barg(L, 1); \
rlm@1	4311 for (i = lua_gettop(L); i > 1; i--) \
rlm@1	4312 b opr barg(L, i); BRET(b) }
rlm@1	4313 BIT_OP(bit_band, &= )
rlm@1	4314 BIT_OP(bit_bor, \|= )
rlm@1	4315 BIT_OP(bit_bxor, ^= )
rlm@1	4316
rlm@1	4317 #define bshl(b, n) (b << n)
rlm@1	4318 #define bshr(b, n) (b >> n)
rlm@1	4319 #define bsar(b, n) ((SBits)b >> n)
rlm@1	4320 #define brol(b, n) ((b << n) \| (b >> (32 - n)))
rlm@1	4321 #define bror(b, n) ((b << (32 - n)) \| (b >> n))
rlm@1	4322 #define BIT_SH(func, fn) \
rlm@1	4323 static int func(lua_State * L) { \
rlm@1	4324 UBits b = barg(L, 1); UBits n = barg(L, 2) & 31; BRET(fn(b, n)) }
rlm@1	4325 BIT_SH(bit_lshift, bshl)
rlm@1	4326 BIT_SH(bit_rshift, bshr)
rlm@1	4327 BIT_SH(bit_arshift, bsar)
rlm@1	4328 BIT_SH(bit_rol, brol)
rlm@1	4329 BIT_SH(bit_ror, bror)
rlm@1	4330
rlm@1	4331 static int bit_bswap(lua_State *L)
rlm@1	4332 {
rlm@1	4333 UBits b = barg(L, 1);
rlm@1	4334 b = (b >> 24) \| ((b >> 8) & 0xff00) \| ((b & 0xff00) << 8) \| (b << 24);
rlm@1	4335 BRET(b)
rlm@1	4336 }
rlm@1	4337
rlm@1	4338 static int bit_tohex(lua_State *L)
rlm@1	4339 {
rlm@1	4340 UBits b = barg(L, 1);
rlm@1	4341 SBits n = lua_isnone(L, 2) ? 8 : (SBits)barg(L, 2);
rlm@1	4342 const char *hexdigits = "0123456789abcdef";
rlm@1	4343 char buf[8];
rlm@1	4344 int i;
rlm@1	4345 if (n < 0) { n = -n; hexdigits = "0123456789ABCDEF"; }
rlm@1	4346 if (n > 8) n = 8;
rlm@1	4347 for (i = (int)n; --i >= 0; )
rlm@1	4348 {
rlm@1	4349 buf[i] = hexdigits[b & 15]; b >>= 4;
rlm@1	4350 }
rlm@1	4351 lua_pushlstring(L, buf, (size_t)n);
rlm@1	4352 return 1;
rlm@1	4353 }
rlm@1	4354
rlm@1	4355 static const struct luaL_Reg bit_funcs[] = {
rlm@1	4356 { "tobit", bit_tobit },
rlm@1	4357 { "bnot", bit_bnot },
rlm@1	4358 { "band", bit_band },
rlm@1	4359 { "bor", bit_bor },
rlm@1	4360 { "bxor", bit_bxor },
rlm@1	4361 { "lshift", bit_lshift },
rlm@1	4362 { "rshift", bit_rshift },
rlm@1	4363 { "arshift", bit_arshift },
rlm@1	4364 { "rol", bit_rol },
rlm@1	4365 { "ror", bit_ror },
rlm@1	4366 { "bswap", bit_bswap },
rlm@1	4367 { "tohex", bit_tohex },
rlm@1	4368 { NULL, NULL }
rlm@1	4369 };
rlm@1	4370
rlm@1	4371 /* Signed right-shifts are implementation-defined per C89/C99.
rlm@1	4372 ** But the de facto standard are arithmetic right-shifts on two's
rlm@1	4373 ** complement CPUs. This behaviour is required here, so test for it.
rlm@1	4374 */
rlm@1	4375 #define BAD_SAR (bsar(-8, 2) != (SBits) - 2)
rlm@1	4376
rlm@1	4377 bool luabitop_validate(lua_State *L) // originally named as luaopen_bit
rlm@1	4378 {
rlm@1	4379 UBits b;
rlm@1	4380 lua_pushnumber(L, (lua_Number)1437217655L);
rlm@1	4381 b = barg(L, -1);
rlm@1	4382 if (b != (UBits)1437217655L \|\| BAD_SAR) /* Perform a simple self-test. */
rlm@1	4383 {
rlm@1	4384 const char *msg = "compiled with incompatible luaconf.h";
rlm@1	4385 #ifdef LUA_NUMBER_DOUBLE
rlm@1	4386 #ifdef WIN32
rlm@1	4387 if (b == (UBits)1610612736L)
rlm@1	4388 msg = "use D3DCREATE_FPU_PRESERVE with DirectX";
rlm@1	4389 #endif
rlm@1	4390 if (b == (UBits)1127743488L)
rlm@1	4391 msg = "not compiled with SWAPPED_DOUBLE";
rlm@1	4392 #endif
rlm@1	4393 if (BAD_SAR)
rlm@1	4394 msg = "arithmetic right-shift broken";
rlm@1	4395 luaL_error(L, "bit library self-test failed (%s)", msg);
rlm@1	4396 return false;
rlm@1	4397 }
rlm@1	4398 return true;
rlm@1	4399 }
rlm@1	4400
rlm@1	4401 // LuaBitOp ends here
rlm@1	4402
rlm@1	4403 static int bit_bshift_emulua(lua_State *L)
rlm@1	4404 {
rlm@1	4405 int shift = luaL_checkinteger(L, 2);
rlm@1	4406 if (shift < 0)
rlm@1	4407 {
rlm@1	4408 lua_pushinteger(L, -shift);
rlm@1	4409 lua_replace(L, 2);
rlm@1	4410 return bit_lshift(L);
rlm@1	4411 }
rlm@1	4412 else
rlm@1	4413 return bit_rshift(L);
rlm@1	4414 }
rlm@1	4415
rlm@1	4416 static int bitbit(lua_State *L)
rlm@1	4417 {
rlm@1	4418 int rv = 0;
rlm@1	4419 int numArgs = lua_gettop(L);
rlm@1	4420 for (int i = 1; i <= numArgs; i++)
rlm@1	4421 {
rlm@1	4422 int where = luaL_checkinteger(L, i);
rlm@1	4423 if (where >= 0 && where < 32)
rlm@1	4424 rv \|= (1 << where);
rlm@1	4425 }
rlm@1	4426 lua_settop(L, 0);
rlm@1	4427 BRET(rv);
rlm@1	4428 }
rlm@1	4429
rlm@1	4430 // The function called periodically to ensure Lua doesn't run amok.
rlm@1	4431 static void VBALuaHookFunction(lua_State L, lua_Debug dbg)
rlm@1	4432 {
rlm@1	4433 if (numTries-- == 0)
rlm@1	4434 {
rlm@1	4435 int kill = 0;
rlm@1	4436
rlm@1	4437 #if (defined(WIN32) && !defined(SDL))
rlm@1	4438 // Uh oh
rlm@1	4439 theApp.winCheckFullscreen();
rlm@1	4440 systemSoundClearBuffer();
rlm@1	4441 int ret = AfxGetApp()->m_pMainWnd->MessageBox(
rlm@1	4442 "The Lua script running has been running a long time. It may have gone crazy. Kill it?\n\n(No = don't check anymore either)",
rlm@1	4443 "Lua Script Gone Nuts?",
rlm@1	4444 MB_YESNO);
rlm@1	4445
rlm@1	4446 if (ret == IDYES)
rlm@1	4447 {
rlm@1	4448 kill = 1;
rlm@1	4449 }
rlm@1	4450
rlm@1	4451 #else
rlm@1	4452 fprintf(
rlm@1	4453 stderr,
rlm@1	4454 "The Lua script running has been running a long time.\nIt may have gone crazy. Kill it? (I won't ask again if you say No)\n");
rlm@1	4455
rlm@1	4456 char buffer[64];
rlm@1	4457 while (true)
rlm@1	4458 {
rlm@1	4459 fprintf(stderr, "(y/n): ");
rlm@1	4460 fgets(buffer, sizeof(buffer), stdin);
rlm@1	4461 if (buffer[0] == 'y' \|\| buffer[0] == 'Y')
rlm@1	4462 {
rlm@1	4463 kill = 1;
rlm@1	4464 break;
rlm@1	4465 }
rlm@1	4466
rlm@1	4467 if (buffer[0] == 'n' \|\| buffer[0] == 'N')
rlm@1	4468 break;
rlm@1	4469 }
rlm@1	4470 #endif
rlm@1	4471 if (kill)
rlm@1	4472 {
rlm@1	4473 luaL_error(L, "Killed by user request.");
rlm@1	4474 VBALuaOnStop();
rlm@1	4475 }
rlm@1	4476
rlm@1	4477 // else, kill the debug hook.
rlm@1	4478 lua_sethook(L, NULL, 0, 0);
rlm@1	4479 }
rlm@1	4480 }
rlm@1	4481
rlm@1	4482 static const struct luaL_reg vbalib[] = {
rlm@1	4483 // {"speedmode", vba_speedmode}, // TODO: NYI
rlm@1	4484 { "frameadvance", vba_frameadvance },
rlm@1	4485 { "pause", vba_pause },
rlm@1	4486 { "framecount", vba_framecount },
rlm@1	4487 { "lagcount", vba_getlagcount },
rlm@1	4488 { "lagged", vba_lagged },
rlm@1	4489 { "emulating", vba_emulating },
rlm@1	4490 { "registerbefore", vba_registerbefore },
rlm@1	4491 { "registerafter", vba_registerafter },
rlm@1	4492 { "registerexit", vba_registerexit },
rlm@1	4493 { "message", vba_message },
rlm@1	4494 { "print", print }, // sure, why not
rlm@1	4495 { NULL, NULL }
rlm@1	4496 };
rlm@1	4497
rlm@1	4498 static const struct luaL_reg memorylib[] = {
rlm@1	4499 { "readbyte", memory_readbyte },
rlm@1	4500 { "readbytesigned", memory_readbytesigned },
rlm@1	4501 { "readword", memory_readword },
rlm@1	4502 { "readwordsigned", memory_readwordsigned },
rlm@1	4503 { "readdword", memory_readdword },
rlm@1	4504 { "readdwordsigned", memory_readdwordsigned },
rlm@1	4505 { "readbyterange", memory_readbyterange },
rlm@1	4506 { "writebyte", memory_writebyte },
rlm@1	4507 { "writeword", memory_writeword },
rlm@1	4508 { "writedword", memory_writedword },
rlm@1	4509 { "getregister", memory_getregister },
rlm@1	4510 { "setregister", memory_setregister },
rlm@1	4511 { "gbromreadbyte", memory_gbromreadbyte },
rlm@1	4512 { "gbromreadbytesigned", memory_gbromreadbytesigned },
rlm@1	4513 { "gbromreadword", memory_gbromreadword },
rlm@1	4514 { "gbromreadwordsigned", memory_gbromreadwordsigned },
rlm@1	4515 { "gbromreaddword", memory_gbromreaddword },
rlm@1	4516 { "gbromreaddwordsigned", memory_gbromreaddwordsigned },
rlm@1	4517 { "gbromreadbyterange", memory_gbromreadbyterange },
rlm@1	4518
rlm@1	4519 // alternate naming scheme for word and double-word and unsigned
rlm@1	4520 { "readbyteunsigned", memory_readbyte },
rlm@1	4521 { "readwordunsigned", memory_readword },
rlm@1	4522 { "readdwordunsigned", memory_readdword },
rlm@1	4523 { "readshort", memory_readword },
rlm@1	4524 { "readshortunsigned", memory_readword },
rlm@1	4525 { "readshortsigned", memory_readwordsigned },
rlm@1	4526 { "readlong", memory_readdword },
rlm@1	4527 { "readlongunsigned", memory_readdword },
rlm@1	4528 { "readlongsigned", memory_readdwordsigned },
rlm@1	4529 { "writeshort", memory_writeword },
rlm@1	4530 { "writelong", memory_writedword },
rlm@1	4531 { "gbromreadbyteunsigned", memory_gbromreadbyte },
rlm@1	4532 { "gbromreadwordunsigned", memory_gbromreadword },
rlm@1	4533 { "gbromreaddwordunsigned", memory_gbromreaddword },
rlm@1	4534 { "gbromreadshort", memory_gbromreadword },
rlm@1	4535 { "gbromreadshortunsigned", memory_gbromreadword },
rlm@1	4536 { "gbromreadshortsigned", memory_gbromreadwordsigned },
rlm@1	4537 { "gbromreadlong", memory_gbromreaddword },
rlm@1	4538 { "gbromreadlongunsigned", memory_gbromreaddword },
rlm@1	4539 { "gbromreadlongsigned", memory_gbromreaddwordsigned },
rlm@1	4540
rlm@1	4541 // memory hooks
rlm@1	4542 { "registerwrite", memory_registerwrite },
rlm@1	4543 //{"registerread", memory_registerread},
rlm@1	4544 { "registerexec", memory_registerexec },
rlm@1	4545 // alternate names
rlm@1	4546 { "register", memory_registerwrite },
rlm@1	4547 { "registerrun", memory_registerexec },
rlm@1	4548 { "registerexecute", memory_registerexec },
rlm@1	4549
rlm@1	4550 { NULL, NULL }
rlm@1	4551 };
rlm@1	4552
rlm@1	4553 static const struct luaL_reg joypadlib[] = {
rlm@1	4554 { "get", joypad_get },
rlm@1	4555 { "getdown", joypad_getdown },
rlm@1	4556 { "getup", joypad_getup },
rlm@1	4557 { "set", joypad_set },
rlm@1	4558
rlm@1	4559 // alternative names
rlm@1	4560 { "read", joypad_get },
rlm@1	4561 { "write", joypad_set },
rlm@1	4562 { "readdown", joypad_getdown },
rlm@1	4563 { "readup", joypad_getup },
rlm@1	4564 { NULL, NULL }
rlm@1	4565 };
rlm@1	4566
rlm@1	4567 static const struct luaL_reg savestatelib[] = {
rlm@1	4568 { "create", savestate_create },
rlm@1	4569 { "save", savestate_save },
rlm@1	4570 { "load", savestate_load },
rlm@1	4571
rlm@1	4572 { NULL, NULL }
rlm@1	4573 };
rlm@1	4574
rlm@1	4575 static const struct luaL_reg movielib[] = {
rlm@1	4576 { "active", movie_isactive },
rlm@1	4577 { "recording", movie_isrecording },
rlm@1	4578 { "playing", movie_isplaying },
rlm@1	4579 { "mode", movie_getmode },
rlm@1	4580
rlm@1	4581 { "length", movie_getlength },
rlm@1	4582 { "author", movie_getauthor },
rlm@1	4583 { "name", movie_getfilename },
rlm@1	4584 { "rerecordcount", movie_rerecordcount },
rlm@1	4585 { "setrerecordcount", movie_setrerecordcount },
rlm@1	4586
rlm@1	4587 { "rerecordcounting", movie_rerecordcounting },
rlm@1	4588 { "framecount", vba_framecount }, // for those familiar with
rlm@1	4589 // other emulators that have
rlm@1	4590 // movie.framecount()
rlm@1	4591 // instead of
rlm@1	4592 // emulatorname.framecount()
rlm@1	4593
rlm@1	4594 { "stop", movie_stop },
rlm@1	4595
rlm@1	4596 // alternative names
rlm@1	4597 { "close", movie_stop },
rlm@1	4598 { "getauthor", movie_getauthor },
rlm@1	4599 { "getname", movie_getfilename },
rlm@1	4600 { NULL, NULL }
rlm@1	4601 };
rlm@1	4602
rlm@1	4603 static const struct luaL_reg guilib[] = {
rlm@1	4604 { "register", gui_register },
rlm@1	4605 { "text", gui_text },
rlm@1	4606 { "box", gui_drawbox },
rlm@1	4607 { "line", gui_drawline },
rlm@1	4608 { "pixel", gui_drawpixel },
rlm@1	4609 { "opacity", gui_setopacity },
rlm@1	4610 { "transparency", gui_transparency },
rlm@1	4611 { "popup", gui_popup },
rlm@1	4612 { "parsecolor", gui_parsecolor },
rlm@1	4613 { "gdscreenshot", gui_gdscreenshot },
rlm@1	4614 { "gdoverlay", gui_gdoverlay },
rlm@1	4615 { "getpixel", gui_getpixel },
rlm@1	4616
rlm@1	4617 // alternative names
rlm@1	4618 { "drawtext", gui_text },
rlm@1	4619 { "drawbox", gui_drawbox },
rlm@1	4620 { "drawline", gui_drawline },
rlm@1	4621 { "drawpixel", gui_drawpixel },
rlm@1	4622 { "setpixel", gui_drawpixel },
rlm@1	4623 { "writepixel", gui_drawpixel },
rlm@1	4624 { "rect", gui_drawbox },
rlm@1	4625 { "drawrect", gui_drawbox },
rlm@1	4626 { "drawimage", gui_gdoverlay },
rlm@1	4627 { "image", gui_gdoverlay },
rlm@1	4628 { "readpixel", gui_getpixel },
rlm@1	4629 { NULL, NULL }
rlm@1	4630 };
rlm@1	4631
rlm@1	4632 static const struct luaL_reg inputlib[] = {
rlm@1	4633 { "get", input_getcurrentinputstatus },
rlm@1	4634
rlm@1	4635 // alternative names
rlm@1	4636 { "read", input_getcurrentinputstatus },
rlm@1	4637 { NULL, NULL }
rlm@1	4638 };
rlm@1	4639
rlm@1	4640 static const struct luaL_reg soundlib[] = {
rlm@1	4641 { "get", sound_get },
rlm@1	4642
rlm@1	4643 // alternative names
rlm@1	4644 { NULL, NULL }
rlm@1	4645 };
rlm@1	4646
rlm@1	4647 // gocha: since vba dumps avi so badly,
rlm@1	4648 // I add avilib as a workaround for enhanced video encoding.
rlm@1	4649 static const struct luaL_reg avilib[] = {
rlm@1	4650 { "framecount", avi_framecount },
rlm@1	4651 { "pause", avi_pause },
rlm@1	4652 { "resume", avi_resume },
rlm@1	4653 { NULL, NULL }
rlm@1	4654 };
rlm@1	4655
rlm@1	4656 void CallExitFunction(void)
rlm@1	4657 {
rlm@1	4658 if (!LUA)
rlm@1	4659 return;
rlm@1	4660
rlm@1	4661 lua_settop(LUA, 0);
rlm@1	4662 lua_getfield(LUA, LUA_REGISTRYINDEX, luaCallIDStrings[LUACALL_BEFOREEXIT]);
rlm@1	4663
rlm@1	4664 int errorcode = 0;
rlm@1	4665 if (lua_isfunction(LUA, -1))
rlm@1	4666 {
rlm@1	4667 errorcode = lua_pcall(LUA, 0, 0, 0);
rlm@1	4668 }
rlm@1	4669
rlm@1	4670 if (errorcode)
rlm@1	4671 HandleCallbackError(LUA);
rlm@1	4672 }
rlm@1	4673
rlm@1	4674 void VBALuaFrameBoundary(void)
rlm@1	4675 {
rlm@1	4676 // printf("Lua Frame\n");
rlm@1	4677
rlm@1	4678 lua_joypads_used = 0;
rlm@1	4679
rlm@1	4680 // HA!
rlm@1	4681 if (!LUA \|\| !luaRunning)
rlm@1	4682 return;
rlm@1	4683
rlm@1	4684 // Our function needs calling
rlm@1	4685 lua_settop(LUA, 0);
rlm@1	4686 lua_getfield(LUA, LUA_REGISTRYINDEX, frameAdvanceThread);
rlm@1	4687
rlm@1	4688 lua_State *thread = lua_tothread(LUA, 1);
rlm@1	4689
rlm@1	4690 // Lua calling C must know that we're busy inside a frame boundary
rlm@1	4691 frameBoundary = true;
rlm@1	4692 frameAdvanceWaiting = false;
rlm@1	4693
rlm@1	4694 numTries = 1000;
rlm@1	4695
rlm@1	4696 int result = lua_resume(thread, 0);
rlm@1	4697
rlm@1	4698 if (result == LUA_YIELD)
rlm@1	4699 {
rlm@1	4700 // Okay, we're fine with that.
rlm@1	4701 }
rlm@1	4702 else if (result != 0)
rlm@1	4703 {
rlm@1	4704 // Done execution by bad causes
rlm@1	4705 VBALuaOnStop();
rlm@1	4706 lua_pushnil(LUA);
rlm@1	4707 lua_setfield(LUA, LUA_REGISTRYINDEX, frameAdvanceThread);
rlm@1	4708 lua_pushnil(LUA);
rlm@1	4709 lua_setfield(LUA, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	4710
rlm@1	4711 // Error?
rlm@1	4712 //#if (defined(WIN32) && !defined(SDL))
rlm@1	4713 // info_print(info_uid, lua_tostring(thread, -1)); //Clear_Sound_Buffer();
rlm@1	4714 // AfxGetApp()->m_pMainWnd->MessageBox(lua_tostring(thread, -1), "Lua run error", MB_OK \| MB_ICONSTOP);
rlm@1	4715 //#else
rlm@1	4716 // fprintf(stderr, "Lua thread bombed out: %s\n", lua_tostring(thread, -1));
rlm@1	4717 //#endif
rlm@1	4718 printerror(thread, -1);
rlm@1	4719 }
rlm@1	4720 else
rlm@1	4721 {
rlm@1	4722 VBALuaOnStop();
rlm@1	4723 printf("Script died of natural causes.\n");
rlm@1	4724 }
rlm@1	4725
rlm@1	4726 // Past here, VBA actually runs, so any Lua code is called mid-frame. We must
rlm@1	4727 // not do anything too stupid, so let ourselves know.
rlm@1	4728 frameBoundary = false;
rlm@1	4729
rlm@1	4730 if (!frameAdvanceWaiting)
rlm@1	4731 {
rlm@1	4732 VBALuaOnStop();
rlm@1	4733 }
rlm@1	4734 }
rlm@1	4735
rlm@1	4736 /**
rlm@1	4737 * Loads and runs the given Lua script.
rlm@1	4738 * The emulator MUST be paused for this function to be
rlm@1	4739 * called. Otherwise, all frame boundary assumptions go out the window.
rlm@1	4740 *
rlm@1	4741 * Returns true on success, false on failure.
rlm@1	4742 */
rlm@1	4743 int VBALoadLuaCode(const char *filename)
rlm@1	4744 {
rlm@1	4745 static bool sfmtInitialized = false;
rlm@1	4746 if (!sfmtInitialized)
rlm@1	4747 {
rlm@1	4748 init_gen_rand((unsigned)time(NULL));
rlm@1	4749 sfmtInitialized = true;
rlm@1	4750 }
rlm@1	4751
rlm@1	4752 if (filename != luaScriptName)
rlm@1	4753 {
rlm@1	4754 if (luaScriptName)
rlm@1	4755 free(luaScriptName);
rlm@1	4756 luaScriptName = strdup(filename);
rlm@1	4757 }
rlm@1	4758
rlm@1	4759 //stop any lua we might already have had running
rlm@1	4760 VBALuaStop();
rlm@1	4761
rlm@1	4762 // Set current directory from filename (for dofile)
rlm@1	4763 char dir[_MAX_PATH];
rlm@1	4764 char slash, backslash;
rlm@1	4765 strcpy(dir, filename);
rlm@1	4766 slash = strrchr(dir, '/');
rlm@1	4767 backslash = strrchr(dir, '\\');
rlm@1	4768 if (!slash \|\| (backslash && backslash < slash))
rlm@1	4769 slash = backslash;
rlm@1	4770 if (slash)
rlm@1	4771 {
rlm@1	4772 slash[1] = '\0'; // keep slash itself for some reasons
rlm@1	4773 chdir(dir);
rlm@1	4774 }
rlm@1	4775
rlm@1	4776 if (!LUA)
rlm@1	4777 {
rlm@1	4778 LUA = lua_open();
rlm@1	4779 luaL_openlibs(LUA);
rlm@1	4780
rlm@1	4781 luaL_register(LUA, "emu", vbalib); // added for better cross-emulator compatibility
rlm@1	4782 luaL_register(LUA, "vba", vbalib); // kept for backward compatibility
rlm@1	4783 luaL_register(LUA, "memory", memorylib);
rlm@1	4784 luaL_register(LUA, "joypad", joypadlib);
rlm@1	4785 luaL_register(LUA, "savestate", savestatelib);
rlm@1	4786 luaL_register(LUA, "movie", movielib);
rlm@1	4787 luaL_register(LUA, "gui", guilib);
rlm@1	4788 luaL_register(LUA, "input", inputlib);
rlm@1	4789 luaL_register(LUA, "sound", soundlib);
rlm@1	4790 luaL_register(LUA, "bit", bit_funcs); // LuaBitOp library
rlm@1	4791 luaL_register(LUA, "avi", avilib); // workaround for enhanced video encoding
rlm@1	4792 lua_settop(LUA, 0); // clean the stack, because each call to luaL_register leaves a table on top
rlm@1	4793
rlm@1	4794 // register a few utility functions outside of libraries (in the global namespace)
rlm@1	4795 lua_register(LUA, "print", print);
rlm@1	4796 lua_register(LUA, "tostring", tostring);
rlm@1	4797 lua_register(LUA, "addressof", addressof);
rlm@1	4798 lua_register(LUA, "copytable", copytable);
rlm@1	4799
rlm@1	4800 // old bit operation functions
rlm@1	4801 lua_register(LUA, "AND", bit_band);
rlm@1	4802 lua_register(LUA, "OR", bit_bor);
rlm@1	4803 lua_register(LUA, "XOR", bit_bxor);
rlm@1	4804 lua_register(LUA, "SHIFT", bit_bshift_emulua);
rlm@1	4805 lua_register(LUA, "BIT", bitbit);
rlm@1	4806
rlm@1	4807 luabitop_validate(LUA);
rlm@1	4808
rlm@1	4809 lua_pushstring(LUA, "math");
rlm@1	4810 lua_gettable(LUA, LUA_GLOBALSINDEX);
rlm@1	4811 lua_pushcfunction(LUA, sfmt_random);
rlm@1	4812 lua_setfield(LUA, -2, "random");
rlm@1	4813 lua_pushcfunction(LUA, sfmt_randomseed);
rlm@1	4814 lua_setfield(LUA, -2, "randomseed");
rlm@1	4815 lua_settop(LUA, 0);
rlm@1	4816
rlm@1	4817 // push arrays for storing hook functions in
rlm@1	4818 for (int i = 0; i < LUAMEMHOOK_COUNT; i++)
rlm@1	4819 {
rlm@1	4820 lua_newtable(LUA);
rlm@1	4821 lua_setfield(LUA, LUA_REGISTRYINDEX, luaMemHookTypeStrings[i]);
rlm@1	4822 }
rlm@1	4823 }
rlm@1	4824
rlm@1	4825 // We make our thread NOW because we want it at the bottom of the stack.
rlm@1	4826 // If all goes wrong, we let the garbage collector remove it.
rlm@1	4827 lua_State *thread = lua_newthread(LUA);
rlm@1	4828
rlm@1	4829 // Load the data
rlm@1	4830 int result = luaL_loadfile(LUA, filename);
rlm@1	4831
rlm@1	4832 if (result)
rlm@1	4833 {
rlm@1	4834 //#if (defined(WIN32) && !defined(SDL))
rlm@1	4835 // info_print(info_uid, lua_tostring(LUA, -1)); //Clear_Sound_Buffer();
rlm@1	4836 // AfxGetApp()->m_pMainWnd->MessageBox(lua_tostring(LUA, -1), "Lua load error", MB_OK \| MB_ICONSTOP);
rlm@1	4837 //#else
rlm@1	4838 // fprintf(stderr, "Failed to compile file: %s\n", lua_tostring(LUA, -1));
rlm@1	4839 //#endif
rlm@1	4840 printerror(LUA, -1);
rlm@1	4841
rlm@1	4842 // Wipe the stack. Our thread
rlm@1	4843 lua_settop(LUA, 0);
rlm@1	4844 return 0; // Oh shit.
rlm@1	4845 }
rlm@1	4846
rlm@1	4847 // Get our function into it
rlm@1	4848 lua_xmove(LUA, thread, 1);
rlm@1	4849
rlm@1	4850 // Save the thread to the registry. This is why I make the thread FIRST.
rlm@1	4851 lua_setfield(LUA, LUA_REGISTRYINDEX, frameAdvanceThread);
rlm@1	4852
rlm@1	4853 // Initialize settings
rlm@1	4854 luaRunning = true;
rlm@1	4855 skipRerecords = false;
rlm@1	4856 numMemHooks = 0;
rlm@1	4857 transparencyModifier = 255; // opaque
rlm@1	4858 lua_joypads_used = 0; // not used
rlm@1	4859 //wasPaused = systemIsPaused();
rlm@1	4860 //systemSetPause(false);
rlm@1	4861
rlm@1	4862 // Set up our protection hook to be executed once every 10,000 bytecode instructions.
rlm@1	4863 lua_sethook(thread, VBALuaHookFunction, LUA_MASKCOUNT, 10000);
rlm@1	4864
rlm@1	4865 #ifdef WIN32
rlm@1	4866 info_print = PrintToWindowConsole;
rlm@1	4867 info_onstart = WinLuaOnStart;
rlm@1	4868 info_onstop = WinLuaOnStop;
rlm@1	4869 if (!LuaConsoleHWnd)
rlm@1	4870 LuaConsoleHWnd = CreateDialog(AfxGetInstanceHandle(), MAKEINTRESOURCE(IDD_LUA),
rlm@1	4871 AfxGetMainWnd()->GetSafeHwnd(), (DLGPROC) DlgLuaScriptDialog);
rlm@1	4872 info_uid = (int)LuaConsoleHWnd;
rlm@1	4873 #else
rlm@1	4874 info_print = NULL;
rlm@1	4875 info_onstart = NULL;
rlm@1	4876 info_onstop = NULL;
rlm@1	4877 #endif
rlm@1	4878 if (info_onstart)
rlm@1	4879 info_onstart(info_uid);
rlm@1	4880
rlm@1	4881 // And run it right now. :)
rlm@1	4882 VBALuaFrameBoundary();
rlm@1	4883 systemRenderFrame();
rlm@1	4884
rlm@1	4885 // We're done.
rlm@1	4886 return 1;
rlm@1	4887 }
rlm@1	4888
rlm@1	4889 /**
rlm@1	4890 * Equivalent to repeating the last VBALoadLuaCode() call.
rlm@1	4891 */
rlm@1	4892 int VBAReloadLuaCode(void)
rlm@1	4893 {
rlm@1	4894 if (!luaScriptName)
rlm@1	4895 {
rlm@1	4896 systemScreenMessage("There's no script to reload.");
rlm@1	4897 return 0;
rlm@1	4898 }
rlm@1	4899 else
rlm@1	4900 return VBALoadLuaCode(luaScriptName);
rlm@1	4901 }
rlm@1	4902
rlm@1	4903 /**
rlm@1	4904 * Terminates a running Lua script by killing the whole Lua engine.
rlm@1	4905 *
rlm@1	4906 * Always safe to call, except from within a lua call itself (duh).
rlm@1	4907 *
rlm@1	4908 */
rlm@1	4909 void VBALuaStop(void)
rlm@1	4910 {
rlm@1	4911 //already killed
rlm@1	4912 if (!LUA)
rlm@1	4913 return;
rlm@1	4914
rlm@1	4915 //execute the user's shutdown callbacks
rlm@1	4916 CallExitFunction();
rlm@1	4917
rlm@1	4918 /info./ numMemHooks = 0;
rlm@1	4919 for (int i = 0; i < LUAMEMHOOK_COUNT; i++)
rlm@1	4920 CalculateMemHookRegions((LuaMemHookType)i);
rlm@1	4921
rlm@1	4922 //sometimes iup uninitializes com
rlm@1	4923 //MBG TODO - test whether this is really necessary. i dont think it is
rlm@1	4924 #if (defined(WIN32) && !defined(SDL))
rlm@1	4925 CoInitialize(0);
rlm@1	4926 #endif
rlm@1	4927
rlm@1	4928 if (info_onstop)
rlm@1	4929 info_onstop(info_uid);
rlm@1	4930
rlm@1	4931 //lua_gc(LUA,LUA_GCCOLLECT,0);
rlm@1	4932 lua_close(LUA); // this invokes our garbage collectors for us
rlm@1	4933 LUA = NULL;
rlm@1	4934 VBALuaOnStop();
rlm@1	4935 }
rlm@1	4936
rlm@1	4937 /**
rlm@1	4938 * Returns true if there is a Lua script running.
rlm@1	4939 *
rlm@1	4940 */
rlm@1	4941 int VBALuaRunning(void)
rlm@1	4942 {
rlm@1	4943 // FIXME: return false when no callback functions are registered.
rlm@1	4944 return (int) (LUA != NULL); // should return true if callback functions are active.
rlm@1	4945 }
rlm@1	4946
rlm@1	4947 /**
rlm@1	4948 * Returns true if Lua would like to steal the given joypad control.
rlm@1	4949 *
rlm@1	4950 * Range is 0 through 3
rlm@1	4951 */
rlm@1	4952 int VBALuaUsingJoypad(int which)
rlm@1	4953 {
rlm@1	4954 if (which < 0 \|\| which > 3)
rlm@1	4955 which = systemGetDefaultJoypad();
rlm@1	4956 return lua_joypads_used & (1 << which);
rlm@1	4957 }
rlm@1	4958
rlm@1	4959 /**
rlm@1	4960 * Reads the buttons Lua is feeding for the given joypad, in the same
rlm@1	4961 * format as the OS-specific code.
rlm@1	4962 *
rlm@1	4963 * <del>This function must not be called more than once per frame. </del>Ideally exactly once
rlm@1	4964 * per frame (if VBALuaUsingJoypad says it's safe to do so)
rlm@1	4965 */
rlm@1	4966 int VBALuaReadJoypad(int which)
rlm@1	4967 {
rlm@1	4968 if (which < 0 \|\| which > 3)
rlm@1	4969 which = systemGetDefaultJoypad();
rlm@1	4970
rlm@1	4971 //lua_joypads_used &= ~(1 << which);
rlm@1	4972 return lua_joypads[which];
rlm@1	4973 }
rlm@1	4974
rlm@1	4975 /**
rlm@1	4976 * If this function returns true, the movie code should NOT increment
rlm@1	4977 * the rerecord count for a load-state.
rlm@1	4978 *
rlm@1	4979 * This function will not return true if a script is not running.
rlm@1	4980 */
rlm@1	4981 bool8 VBALuaRerecordCountSkip(void)
rlm@1	4982 {
rlm@1	4983 // FIXME: return true if (there are any active callback functions && skipRerecords)
rlm@1	4984 return LUA && luaRunning && skipRerecords;
rlm@1	4985 }
rlm@1	4986
rlm@1	4987 /**
rlm@1	4988 * Given a screen with the indicated resolution,
rlm@1	4989 * draw the current GUI onto it.
rlm@1	4990 */
rlm@1	4991 void VBALuaGui(uint8 *screen, int ppl, int width, int height)
rlm@1	4992 {
rlm@1	4993 if (!LUA /* \|\| !luaRunning*/)
rlm@1	4994 return;
rlm@1	4995
rlm@1	4996 // First, check if we're being called by anybody
rlm@1	4997 lua_getfield(LUA, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	4998
rlm@1	4999 if (lua_isfunction(LUA, -1))
rlm@1	5000 {
rlm@1	5001 // We call it now
rlm@1	5002 numTries = 1000;
rlm@1	5003
rlm@1	5004 int ret = lua_pcall(LUA, 0, 0, 0);
rlm@1	5005 if (ret != 0)
rlm@1	5006 {
rlm@1	5007 // This is grounds for trashing the function
rlm@1	5008 // Note: This must be done before the messagebox pops up,
rlm@1	5009 // otherwise the messagebox will cause a paint event which causes a weird
rlm@1	5010 // infinite call sequence that makes Snes9x silently exit with error code 3,
rlm@1	5011 // if a Lua GUI function crashes. (nitsuja)
rlm@1	5012 lua_pushnil(LUA);
rlm@1	5013 lua_setfield(LUA, LUA_REGISTRYINDEX, guiCallbackTable);
rlm@1	5014
rlm@1	5015 //#if (defined(WIN32) && !defined(SDL))
rlm@1	5016 // info_print(info_uid, lua_tostring(LUA, -1)); //AfxGetApp()->m_pMainWnd->MessageBox(lua_tostring(LUA, -1), "Lua Error
rlm@1	5017 // in GUI function", MB_OK);
rlm@1	5018 //#else
rlm@1	5019 // fprintf(stderr, "Lua error in gui.register function: %s\n", lua_tostring(LUA, -1));
rlm@1	5020 //#endif
rlm@1	5021 printerror(LUA, -1);
rlm@1	5022 }
rlm@1	5023 }
rlm@1	5024
rlm@1	5025 // And wreak the stack
rlm@1	5026 lua_settop(LUA, 0);
rlm@1	5027
rlm@1	5028 if (!gui_used)
rlm@1	5029 return;
rlm@1	5030
rlm@1	5031 gui_used = false;
rlm@1	5032
rlm@1	5033 int x, y;
rlm@1	5034
rlm@1	5035 //int pitch = (((ppl * systemColorDepth + 7)>>3)+3)&~3;
rlm@1	5036 int pitch = ppl * (systemColorDepth / 8) + (systemColorDepth == 24 ? 0 : 4);
rlm@1	5037
rlm@1	5038 if (width > LUA_SCREEN_WIDTH)
rlm@1	5039 width = LUA_SCREEN_WIDTH;
rlm@1	5040 if (height > LUA_SCREEN_HEIGHT)
rlm@1	5041 height = LUA_SCREEN_HEIGHT;
rlm@1	5042
rlm@1	5043 GetColorFunc getColor;
rlm@1	5044 SetColorFunc setColor;
rlm@1	5045 getColorIOFunc(systemColorDepth, &getColor, &setColor);
rlm@1	5046
rlm@1	5047 for (y = 0; y < height; y++)
rlm@1	5048 {
rlm@1	5049 uint8 scr = &screen[y pitch];
rlm@1	5050 for (x = 0; x < width; x++, scr += systemColorDepth / 8)
rlm@1	5051 {
rlm@1	5052 const uint8 gui_alpha = gui_data[(y * LUA_SCREEN_WIDTH + x) * 4 + 3];
rlm@1	5053 if (gui_alpha == 0)
rlm@1	5054 {
rlm@1	5055 // do nothing
rlm@1	5056 continue;
rlm@1	5057 }
rlm@1	5058
rlm@1	5059 const uint8 gui_red = gui_data[(y * LUA_SCREEN_WIDTH + x) * 4 + 2];
rlm@1	5060 const uint8 gui_green = gui_data[(y * LUA_SCREEN_WIDTH + x) * 4 + 1];
rlm@1	5061 const uint8 gui_blue = gui_data[(y * LUA_SCREEN_WIDTH + x) * 4];
rlm@1	5062 int red, green, blue;
rlm@1	5063
rlm@1	5064 if (gui_alpha == 255)
rlm@1	5065 {
rlm@1	5066 // direct copy
rlm@1	5067 red = gui_red;
rlm@1	5068 green = gui_green;
rlm@1	5069 blue = gui_blue;
rlm@1	5070 }
rlm@1	5071 else
rlm@1	5072 {
rlm@1	5073 // alpha-blending
rlm@1	5074 uint8 scr_red, scr_green, scr_blue;
rlm@1	5075 getColor(scr, &scr_red, &scr_green, &scr_blue);
rlm@1	5076 red = (((int)gui_red - scr_red) * gui_alpha / 255 + scr_red) & 255;
rlm@1	5077 green = (((int)gui_green - scr_green) * gui_alpha / 255 + scr_green) & 255;
rlm@1	5078 blue = (((int)gui_blue - scr_blue) * gui_alpha / 255 + scr_blue) & 255;
rlm@1	5079 }
rlm@1	5080
rlm@1	5081 setColor(scr, (uint8) red, (uint8) green, (uint8) blue);
rlm@1	5082 }
rlm@1	5083 }
rlm@1	5084
rlm@1	5085 return;
rlm@1	5086 }
rlm@1	5087
rlm@1	5088 void VBALuaClearGui(void)
rlm@1	5089 {
rlm@1	5090 gui_used = false;
rlm@1	5091 }
rlm@1	5092
rlm@1	5093 lua_State *VBAGetLuaState()
rlm@1	5094 {
rlm@1	5095 return LUA;
rlm@1	5096 }
rlm@1	5097
rlm@1	5098 char *VBAGetLuaScriptName()
rlm@1	5099 {
rlm@1	5100 return luaScriptName;
rlm@1	5101 }
rlm@1	5102

Mercurial > vba-clojure

annotate src/common/lua-engine.cpp @ 4:5f6f2134e8ce