Mercurial > vba-linux

     1 #include "stdafx.h"

     2 #include <gl/GL.h>

     3 

     4 #include "resource.h"

     5 #include "MainWnd.h"

     6 #include "Reg.h"

     7 #include "VBA.h"

     8 

     9 #include "../gba/GBAGlobals.h"

    10 #include "../gb/gbGlobals.h"

    11 #include "../common/Text.h"

    12 #include "../version.h"

    13 

    14 #ifdef MMX

    15 extern "C" bool cpu_mmx;

    16 

    17 extern bool detectMMX();

    18 #endif

    19 

    20 extern int systemSpeed;

    21 extern int Init_2xSaI(u32);

    22 extern void winlog(const char *, ...);

    23 

    24 class OpenGLDisplay : public IDisplay

    25 {

    26 private:

    27 	HDC    hDC;

    28 	HGLRC  hglrc;

    29 	GLuint texture;

    30 	int    width;

    31 	int    height;

    32 	float  size;

    33 	u8 *   filterData;

    34 	bool   failed;

    35 

    36 	bool initializeTexture(int w, int h);

    37 	void updateFiltering(int);

    38 public:

    39 	OpenGLDisplay();

    40 	virtual ~OpenGLDisplay();

    41 

    42 	virtual bool initialize();

    43 	virtual void cleanup();

    44 	virtual void render();

    45 	virtual void checkFullScreen();

    46 	virtual void renderMenu();

    47 	virtual void clear();

    48 	virtual bool changeRenderSize(int w, int h);

    49 	virtual void resize(int w, int h);

    50 	virtual DISPLAY_TYPE getType() { return OPENGL; };

    51 	virtual void setOption(const char *, int);

    52 	virtual int selectFullScreenMode(GUID * *);

    53 };

    54 

    55 OpenGLDisplay::OpenGLDisplay()

    56 {

    57 	hDC        = NULL;

    58 	hglrc      = NULL;

    59 	texture    = 0;

    60 	width      = 0;

    61 	height     = 0;

    62 	size       = 0.0f;

    63 	filterData = (u8 *)malloc(4*16*256*256); // sufficient for 4x filters @ 32bit color depth

    64 	failed     = false;

    65 }

    66 

    67 OpenGLDisplay::~OpenGLDisplay()

    68 {

    69 	cleanup();

    70 }

    71 

    72 void OpenGLDisplay::cleanup()

    73 {

    74 	if (texture != 0)

    75 	{

    76 		glDeleteTextures(1, &texture);

    77 		texture = 0;

    78 	}

    79 	if (hglrc != NULL)

    80 	{

    81 		wglDeleteContext(hglrc);

    82 		wglMakeCurrent(NULL, NULL);

    83 		hglrc = NULL;

    84 	}

    85 	if (hDC != NULL)

    86 	{

    87 		ReleaseDC(*theApp.m_pMainWnd, hDC);

    88 		hDC = NULL;

    89 	}

    90 	if (filterData)

    91 	{

    92 		free(filterData);

    93 		filterData = NULL;

    94 	}

    95 	width  = 0;

    96 	height = 0;

    97 	size   = 0.0f;

    98 }

    99 

   100 bool OpenGLDisplay::initialize()

   101 {

   102 	CWnd *pWnd = theApp.m_pMainWnd;

   103 

   104 	theApp.mode320Available = false;

   105 	theApp.mode640Available = false;

   106 	theApp.mode800Available = false;

   107 

   108 	CDC *dc  = pWnd->GetDC();

   109 	HDC  hDC = dc->GetSafeHdc();

   110 

   111 	PIXELFORMATDESCRIPTOR pfd = {

   112 		sizeof(PIXELFORMATDESCRIPTOR), //  size of this pfd

   113 		1, // version number

   114 		PFD_DRAW_TO_WINDOW | // support window

   115 		PFD_SUPPORT_OPENGL | // support OpenGL

   116 		PFD_DOUBLEBUFFER, // double buffered

   117 		PFD_TYPE_RGBA, // RGBA type

   118 		16, // 16-bit color depth

   119 		0, 0, 0, 0, 0, 0,  // color bits ignored

   120 		0, // no alpha buffer

   121 		0, // shift bit ignored

   122 		0, // no accumulation buffer

   123 		0, 0, 0, 0, // accum bits ignored

   124 		32, // 32-bit z-buffer

   125 		0, // no stencil buffer

   126 		0, // no auxiliary buffer

   127 		PFD_MAIN_PLANE, // main layer

   128 		0, // reserved

   129 		0, 0, 0            // layer masks ignored

   130 	};

   131 	int iPixelFormat;

   132 

   133 	if (!(iPixelFormat = ChoosePixelFormat(hDC, &pfd)))

   134 	{

   135 		winlog("Failed ChoosePixelFormat\n");

   136 		return false;

   137 	}

   138 

   139 	// obtain detailed information about

   140 	// the device context's first pixel format

   141 	if (!(DescribePixelFormat(hDC, iPixelFormat,

   142 	                          sizeof(PIXELFORMATDESCRIPTOR), &pfd)))

   143 	{

   144 		winlog("Failed DescribePixelFormat\n");

   145 		return false;

   146 	}

   147 

   148 	if (!SetPixelFormat(hDC, iPixelFormat, &pfd))

   149 	{

   150 		winlog("Failed SetPixelFormat\n");

   151 		return false;

   152 	}

   153 

   154 	if (!(hglrc = wglCreateContext(hDC)))

   155 	{

   156 		winlog("Failed wglCreateContext\n");

   157 		return false;

   158 	}

   159 

   160 	if (!wglMakeCurrent(hDC, hglrc))

   161 	{

   162 		winlog("Failed wglMakeCurrent\n");

   163 		return false;

   164 	}

   165 	pWnd->ReleaseDC(dc);

   166 

   167 	// setup 2D gl environment

   168 	glPushAttrib(GL_ENABLE_BIT);

   169 	glDisable(GL_DEPTH_TEST);

   170 	glDisable(GL_CULL_FACE);

   171 	glEnable(GL_TEXTURE_2D);

   172 

   173 	glViewport(0, 0, theApp.surfaceSizeX, theApp.surfaceSizeY);

   174 

   175 	glMatrixMode(GL_PROJECTION);

   176 	glLoadIdentity();

   177 

   178 	glOrtho(0.0, (GLdouble)(theApp.surfaceSizeX), (GLdouble)(theApp.surfaceSizeY),

   179 	        0.0, 0.0, 1.0);

   180 	glMatrixMode(GL_MODELVIEW);

   181 	glLoadIdentity();

   182 

   183 	systemRedShift      = 3;

   184 	systemGreenShift    = 11;

   185 	systemBlueShift     = 19;

   186 	systemColorDepth    = 32;

   187 	theApp.fsColorDepth = 32;

   188 

   189 	Init_2xSaI(32);

   190 #ifdef MMX

   191 	if (!theApp.disableMMX)

   192 		cpu_mmx = theApp.detectMMX();

   193 	else

   194 		cpu_mmx = 0;

   195 #endif

   196 

   197 	if (theApp.ddrawDebug)

   198 	{

   199 		winlog("R shift: %d\n", systemRedShift);

   200 		winlog("G shift: %d\n", systemGreenShift);

   201 		winlog("B shift: %d\n", systemBlueShift);

   202 	}

   203 

   204 	switch (systemColorDepth)

   205 	{

   206 	case 16:

   207 	{

   208 		for (int i = 0; i < 0x10000; i++)

   209 		{

   210 			systemColorMap16[i] = ((i & 0x1f) << systemRedShift) |

   211 			                      (((i & 0x3e0) >> 5) << systemGreenShift) |

   212 			                      (((i & 0x7c00) >> 10) << systemBlueShift);

   213 		}

   214 		break;

   215 	}

   216 	case 24:

   217 	case 32:

   218 	{

   219 		for (int i = 0; i < 0x10000; i++)

   220 		{

   221 			systemColorMap32[i] = ((i & 0x1f) << systemRedShift) |

   222 			                      (((i & 0x3e0) >> 5) << systemGreenShift) |

   223 			                      (((i & 0x7c00) >> 10) << systemBlueShift);

   224 		}

   225 		break;

   226 	}

   227 	}

   228 	theApp.updateFilter();

   229 	theApp.updateIFB();

   230 

   231 	if (failed)

   232 		return false;

   233 

   234 	pWnd->DragAcceptFiles(TRUE);

   235 

   236 	return TRUE;

   237 }

   238 

   239 void OpenGLDisplay::clear()

   240 {}

   241 

   242 void OpenGLDisplay::renderMenu()

   243 {

   244 	checkFullScreen();

   245 	if (theApp.m_pMainWnd)

   246 		theApp.m_pMainWnd->DrawMenuBar();

   247 }

   248 

   249 void OpenGLDisplay::checkFullScreen()

   250 {

   251 	//  if(tripleBuffering)

   252 	//    pOpenGL->FlipToGDISurface();

   253 }

   254 

   255 void OpenGLDisplay::render()

   256 {

   257 	void (*filterFunction)(u8 *, u32, u8 *, u8 *, u32, int, int) = theApp.filterFunction;

   258 	int  filterWidth = theApp.filterWidth, filterHeight = theApp.filterHeight;

   259 /*

   260     if(textMethod == 1)

   261     {

   262         int copyX = 240, copyY = 160;

   263         if(systemCartridgeType == 1)

   264             if(gbBorderOn) copyX = 256, copyY = 224;

   265             else           copyX = 160, copyY = 144;

   266 

   267         extern void Simple1x(u8*,u32,u8*,u8*,u32,int,int);

   268         filterFunction = Simple1x;

   269         filterWidth = copyX;

   270         filterHeight = copyY;

   271     }

   272  */

   273 	int pitch = filterWidth * 4 + 4;

   274 	u8 *data  = pix + (theApp.sizeX+1)*4;

   275 

   276 	int filterPitch = theApp.rect.right*4;

   277 

   278 /*

   279 	// HACK: see below

   280 	if (textMethod == 1 && !filterFunction)

   281 	{

   282 		textMethod = 0; // must not be after systemMessage!

   283 		systemMessage(

   284 		    0,

   285 		    "The \"On Game\" text display mode does not work with this combination of renderers and filters.\nThe display mode is automatically being changed to \"In Game\" instead,\nbut this may cause message text to go into AVI recordings and screenshots.\nThis can be reconfigured by choosing \"Options->Video->Text Display Options...\"");

   286 	}

   287 */

   288 

   289 	if (filterFunction)

   290 	{

   291 		data = filterData;

   292 		filterFunction(pix + pitch,

   293 		               pitch,

   294 		               (u8 *)theApp.delta,

   295 		               (u8 *)filterData,

   296 		               filterPitch,

   297 		               filterWidth,

   298 		               filterHeight);

   299 	}

   300 

   301 	if (theApp.showSpeed && theApp.videoOption > VIDEO_4X)

   302 	{

   303 		char buffer[30];

   304 		if (theApp.showSpeed == 1)

   305 			sprintf(buffer, "%3d%%", systemSpeed);

   306 		else

   307 			sprintf(buffer, "%3d%%(%d, %d fps)", systemSpeed,

   308 			        systemFrameSkip,

   309 			        theApp.showRenderedFrames);

   310 

   311 		if (filterFunction)

   312 		{

   313 			if (theApp.showSpeedTransparent)

   314 				drawTextTransp((u8 *)filterData,

   315 				               filterPitch,

   316 				               theApp.rect.left+10,

   317 				               theApp.rect.bottom-10,

   318 				               buffer);

   319 			else

   320 				drawText((u8 *)filterData,

   321 				         filterPitch,

   322 			             theApp.rect.left+10,

   323 			             theApp.rect.bottom-10,

   324 				         buffer);

   325 		}

   326 		else

   327 		{

   328 			if (theApp.showSpeedTransparent)

   329 				drawTextTransp((u8 *)pix,

   330 				               pitch,

   331 				               theApp.rect.left+10,

   332 				               theApp.rect.bottom-10,

   333 				               buffer);

   334 			else

   335 				drawText((u8 *)pix,

   336 				         pitch,

   337 			             theApp.rect.left+10,

   338 			             theApp.rect.bottom-10,

   339 				         buffer);

   340 		}

   341 	}

   342 

   343 	if (textMethod == 1 && filterFunction)

   344 	{

   345 		DrawTextMessages((u8 *)filterData, filterPitch, theApp.rect.left, theApp.rect.bottom);

   346 	}

   347 

   348 	// Texturemap complete texture to surface so we have free scaling

   349 	// and antialiasing

   350 	if (filterFunction)

   351 	{

   352 		glPixelStorei(GL_UNPACK_ROW_LENGTH, theApp.rect.right);

   353 	}

   354 	else

   355 	{

   356 		glPixelStorei(GL_UNPACK_ROW_LENGTH, theApp.sizeX+1);

   357 	}

   358 

   359 	glTexSubImage2D(GL_TEXTURE_2D, 0,

   360 					0, 0, theApp.rect.right, theApp.rect.bottom,

   361 	                GL_RGBA, GL_UNSIGNED_BYTE, data);

   362 

   363 	if (theApp.glType == 0)

   364 	{

   365 		glBegin(GL_TRIANGLE_STRIP);

   366 		glTexCoord2f(0.0, 0.0); glVertex3i(0, 0, 0);

   367 		glTexCoord2f(theApp.rect.right/size, 0.0); glVertex3i(theApp.surfaceSizeX, 0, 0);

   368 		glTexCoord2f(0.0, theApp.rect.bottom/size); glVertex3i(0, theApp.surfaceSizeY, 0);

   369 		glTexCoord2f(theApp.rect.right/size, theApp.rect.bottom/size); glVertex3i(theApp.surfaceSizeX, theApp.surfaceSizeY, 0);

   370 		glEnd();

   371 	}

   372 	else

   373 	{

   374 		glBegin(GL_QUADS);

   375 		glTexCoord2f(0.0, 0.0); glVertex3i(0, 0, 0);

   376 		glTexCoord2f(theApp.rect.right/size, 0.0); glVertex3i(theApp.surfaceSizeX, 0, 0);

   377 		glTexCoord2f(theApp.rect.right/size, theApp.rect.bottom/size); glVertex3i(theApp.surfaceSizeX, theApp.surfaceSizeY, 0);

   378 		glTexCoord2f(0.0, theApp.rect.bottom/size); glVertex3i(0, theApp.surfaceSizeY, 0);

   379 		glEnd();

   380 	}

   381 

   382 	CDC *dc = theApp.m_pMainWnd->GetDC();

   383 

   384 	if (textMethod == 2 || (textMethod == 1 && !filterFunction)) // HACK: so that textMethod isn't changed

   385 	{

   386 		for (int slot = 0; slot < SCREEN_MESSAGE_SLOTS; slot++)

   387 		{

   388 			if (theApp.screenMessage[slot])

   389 			{

   390 				if ((theApp.screenMessageDuration[slot] < 0 || 

   391 					(int)(GetTickCount() - theApp.screenMessageTime[slot]) < theApp.screenMessageDuration[slot]) &&

   392 				    (!theApp.disableStatusMessage || slot == 1 || slot == 2))

   393 				{

   394 					dc->SetBkMode(TRANSPARENT);

   395 

   396 					if (outlinedText)

   397 					{

   398 						dc->SetTextColor(textColor != 7 ? RGB(0, 0, 0) : RGB(255, 255, 255));

   399 						// draw black outline

   400 						const static int xd [8] = {-1, 0, 1, 1, 1, 0, -1, -1};

   401 						const static int yd [8] = {-1, -1, -1, 0, 1, 1, 1, 0};

   402 						for (int i = 0; i < 8; i++)

   403 						{

   404 							dc->TextOut(10+xd[i], theApp.surfaceSizeY - 20*(slot+1)+yd[i], theApp.screenMessageBuffer[slot]);

   405 						}

   406 					}

   407 

   408 					COLORREF color;

   409 					switch (textColor)

   410 					{

   411 					case 0:

   412 						color = RGB(255, 255, 255); break;

   413 					case 1:

   414 						color = RGB(255, 0, 0); break;

   415 					case 2:

   416 						color = RGB(255, 255, 0); break;

   417 					case 3:

   418 						color = RGB(0, 255, 0); break;

   419 					case 4:

   420 						color = RGB(0, 255, 255); break;

   421 					case 5:

   422 						color = RGB(0, 0, 255); break;

   423 					case 6:

   424 						color = RGB(255, 0, 255); break;

   425 					case 7:

   426 						color = RGB(0, 0, 0); break;

   427 					}

   428 					dc->SetTextColor(color);

   429 

   430 					// draw center text

   431 					dc->TextOut(10, theApp.surfaceSizeY - 20*(slot+1), theApp.screenMessageBuffer[slot]);

   432 				}

   433 				else

   434 				{

   435 					theApp.screenMessage[slot] = false;

   436 				}

   437 			}

   438 		}

   439 	}

   440 

   441 	SwapBuffers(dc->GetSafeHdc());

   442 

   443 	theApp.m_pMainWnd->ReleaseDC(dc);

   444 }

   445 

   446 void OpenGLDisplay::resize(int w, int h)

   447 {

   448 	glViewport(0, 0, w, h);

   449 	glMatrixMode(GL_PROJECTION);

   450 	glLoadIdentity();

   451 

   452 	glOrtho(0.0, (GLdouble)(w), (GLdouble)(h), 0.0, 0.0, 1.0);

   453 	glMatrixMode(GL_MODELVIEW);

   454 	glLoadIdentity();

   455 }

   456 

   457 void OpenGLDisplay::updateFiltering(int value)

   458 {

   459 	switch (value)

   460 	{

   461 	case 0:

   462 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);

   463 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);

   464 		break;

   465 	case 1:

   466 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);

   467 		glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);

   468 		break;

   469 	}

   470 }

   471 

   472 bool OpenGLDisplay::initializeTexture(int w, int h)

   473 {

   474 	int mySize = 256;

   475 	size = 256.0f;

   476 	if (w > 511 || h > 511)

   477 	{

   478 		size   = 1024.0f;

   479 		mySize = 1024;

   480 	}

   481 	else if (w > 255 || h > 255)

   482 	{

   483 		size   = 512.0f;

   484 		mySize = 512;

   485 	}

   486 	glGenTextures(1, &texture);

   487 	glBindTexture(GL_TEXTURE_2D, texture);

   488 

   489 	int filter = regQueryDwordValue("glFilter", 0);

   490 	if (filter < 0 || filter > 1)

   491 		filter = 0;

   492 	updateFiltering(filter);

   493 

   494 	glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, mySize, mySize, 0, GL_RGBA,

   495 	             GL_UNSIGNED_BYTE, NULL);

   496 	width  = w;

   497 	height = h;

   498 

   499 	return true;

   500 }

   501 

   502 bool OpenGLDisplay::changeRenderSize(int w, int h)

   503 {

   504 	if (width != w || height != h)

   505 	{

   506 		if (texture != 0)

   507 		{

   508 			glDeleteTextures(1, &texture);

   509 			texture = 0;

   510 		}

   511 		if (!initializeTexture(w, h))

   512 		{

   513 			failed = true;

   514 			return false;

   515 		}

   516 	}

   517 	return true;

   518 }

   519 

   520 void OpenGLDisplay::setOption(const char *option, int value)

   521 {

   522 	if (!strcmp(option, "glFilter"))

   523 		updateFiltering(value);

   524 }

   525 

   526 int OpenGLDisplay::selectFullScreenMode(GUID * *)

   527 {

   528 	HWND wnd = GetDesktopWindow();

   529 	RECT r;

   530 	GetWindowRect(wnd, &r);

   531 	int w  = (r.right - r.left) & 4095;

   532 	int h  = (r.bottom - r.top) & 4095;

   533 	HDC dc = GetDC(wnd);

   534 	int c  = GetDeviceCaps(dc, BITSPIXEL);

   535 	ReleaseDC(wnd, dc);

   536 

   537 	return (c << 24) | (w << 12) | h;

   538 }

   539 

   540 IDisplay *newOpenGLDisplay()

   541 {

   542 	return new OpenGLDisplay();

   543 }

   544
author	Robert McIntyre <rlm@mit.edu>
date	Sat, 03 Mar 2012 10:31:27 -0600
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