rlm@1: // VisualBoyAdvance - Nintendo Gameboy/GameboyAdvance (TM) emulator.
rlm@1: // Copyright (C) 1999-2003 Forgotten
rlm@1: // Copyright (C) 2004 Forgotten and the VBA development team
rlm@1: 
rlm@1: // This program is free software; you can redistribute it and/or modify
rlm@1: // it under the terms of the GNU General Public License as published by
rlm@1: // the Free Software Foundation; either version 2, or(at your option)
rlm@1: // any later version.
rlm@1: //
rlm@1: // This program is distributed in the hope that it will be useful,
rlm@1: // but WITHOUT ANY WARRANTY; without even the implied warranty of
rlm@1: // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
rlm@1: // GNU General Public License for more details.
rlm@1: //
rlm@1: // You should have received a copy of the GNU General Public License
rlm@1: // along with this program; if not, write to the Free Software Foundation,
rlm@1: // Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
rlm@1: 
rlm@1: #include "screenarea.h"
rlm@1: 
rlm@1: #include <string.h>
rlm@1: 
rlm@1: namespace VBA
rlm@1: {
rlm@1: 
rlm@1: ScreenArea::ScreenArea(int _iWidth, int _iHeight, int _iScale) :
rlm@1:   m_puiPixels(NULL),
rlm@1:   m_puiDelta(NULL),
rlm@1:   m_vFilter2x(NULL),
rlm@1:   m_vFilterIB(NULL),
rlm@1:   m_bShowCursor(true)
rlm@1: {
rlm@1:   g_assert(_iWidth >= 1 && _iHeight >= 1 && _iScale >= 1);
rlm@1: 
rlm@1:   m_iWidth  = _iWidth;
rlm@1:   m_iHeight = _iHeight;
rlm@1:   m_iScale  = _iScale;
rlm@1:   vUpdateSize();
rlm@1: 
rlm@1:   set_events(Gdk::EXPOSURE_MASK
rlm@1:              | Gdk::POINTER_MOTION_MASK
rlm@1:              | Gdk::ENTER_NOTIFY_MASK
rlm@1:              | Gdk::LEAVE_NOTIFY_MASK);
rlm@1: 
rlm@1:   char aiEmptyData[8];
rlm@1:   memset(aiEmptyData, 0, sizeof(aiEmptyData));
rlm@1:   Glib::RefPtr<Gdk::Bitmap> poSource = Gdk::Bitmap::create(aiEmptyData, 8, 8);
rlm@1:   Glib::RefPtr<Gdk::Bitmap> poMask = Gdk::Bitmap::create(aiEmptyData, 8, 8);
rlm@1:   Gdk::Color oFg;
rlm@1:   Gdk::Color oBg;
rlm@1:   oFg.set_rgb(0, 0, 0);
rlm@1:   oBg.set_rgb(0, 0, 0);
rlm@1: 
rlm@1:   m_poEmptyCursor = new Gdk::Cursor(poSource, poMask, oFg, oBg, 0, 0);
rlm@1: }
rlm@1: 
rlm@1: ScreenArea::~ScreenArea()
rlm@1: {
rlm@1:   if (m_puiPixels != NULL)
rlm@1:   {
rlm@1:     delete[] m_puiPixels;
rlm@1:   }
rlm@1: 
rlm@1:   if (m_puiDelta != NULL)
rlm@1:   {
rlm@1:     delete[] m_puiDelta;
rlm@1:   }
rlm@1: 
rlm@1:   if (m_poEmptyCursor != NULL)
rlm@1:   {
rlm@1:     delete m_poEmptyCursor;
rlm@1:   }
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vSetSize(int _iWidth, int _iHeight)
rlm@1: {
rlm@1:   g_return_if_fail(_iWidth >= 1 && _iHeight >= 1);
rlm@1: 
rlm@1:   if (_iWidth != m_iWidth || _iHeight != m_iHeight)
rlm@1:   {
rlm@1:     m_iWidth  = _iWidth;
rlm@1:     m_iHeight = _iHeight;
rlm@1:     vUpdateSize();
rlm@1:   }
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vSetScale(int _iScale)
rlm@1: {
rlm@1:   g_return_if_fail(_iScale >= 1);
rlm@1: 
rlm@1:   if (_iScale != m_iScale)
rlm@1:   {
rlm@1:     m_iScale = _iScale;
rlm@1:     vUpdateSize();
rlm@1:   }
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vSetFilter2x(EFilter2x _eFilter2x)
rlm@1: {
rlm@1:   m_vFilter2x = pvGetFilter2x(_eFilter2x, FilterDepth32);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vSetFilterIB(EFilterIB _eFilterIB)
rlm@1: {
rlm@1:   m_vFilterIB = pvGetFilterIB(_eFilterIB, FilterDepth32);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vDrawPixels(u8 * _puiData)
rlm@1: {
rlm@1:   if (m_vFilterIB != NULL)
rlm@1:   {
rlm@1:     m_vFilterIB(_puiData + m_iAreaWidth * 2 + 4,
rlm@1:                 m_iAreaWidth * 2 + 4,
rlm@1:                 m_iWidth,
rlm@1:                 m_iHeight);
rlm@1:   }
rlm@1: 
rlm@1:   if (m_iScale == 1)
rlm@1:   {
rlm@1:     u32 * puiSrc = (u32 *)_puiData + m_iWidth + 1;
rlm@1:     u32 * puiPixel = m_puiPixels;
rlm@1:     for (int y = 0; y < m_iHeight; y++)
rlm@1:     {
rlm@1:       for (int x = 0; x < m_iWidth; x++)
rlm@1:       {
rlm@1:         *puiPixel++ = *puiSrc++;
rlm@1:       }
rlm@1:       puiSrc++;
rlm@1:     }
rlm@1:   }
rlm@1:   else if (m_iScale == 2 && m_vFilter2x != NULL)
rlm@1:   {
rlm@1:     m_vFilter2x(_puiData + m_iAreaWidth * 2 + 4,
rlm@1:                 m_iAreaWidth * 2 + 4,
rlm@1:                 m_puiDelta,
rlm@1:                 (u8 *)m_puiPixels,
rlm@1:                 m_iRowStride,
rlm@1:                 m_iWidth,
rlm@1:                 m_iHeight);
rlm@1:   }
rlm@1:   else
rlm@1:   {
rlm@1:     u32 * puiSrc = (u32 *)_puiData + m_iWidth + 1;
rlm@1:     u32 * puiSrc2;
rlm@1:     u32 * puiPixel = m_puiPixels;
rlm@1:     for (int y = 0; y < m_iHeight; y++)
rlm@1:     {
rlm@1:       for (int j = 0; j < m_iScale; j++)
rlm@1:       {
rlm@1:         puiSrc2 = puiSrc;
rlm@1:         for (int x = 0; x < m_iWidth; x++)
rlm@1:         {
rlm@1:           for (int i = 0; i < m_iScale; i++)
rlm@1:           {
rlm@1:             *puiPixel++ = *puiSrc2;
rlm@1:           }
rlm@1:           puiSrc2++;
rlm@1:         }
rlm@1:       }
rlm@1:       puiSrc = puiSrc2 + 1;
rlm@1:     }
rlm@1:   }
rlm@1: 
rlm@1:   queue_draw_area(0, 0, m_iAreaWidth, m_iAreaHeight);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vDrawColor(u32 _uiColor)
rlm@1: {
rlm@1:   _uiColor = GUINT32_TO_BE(_uiColor) << 8;
rlm@1: 
rlm@1:   u32 * puiPixel = m_puiPixels;
rlm@1:   u32 * puiEnd   = m_puiPixels + m_iAreaWidth * m_iAreaHeight;
rlm@1:   while (puiPixel != puiEnd)
rlm@1:   {
rlm@1:     *puiPixel++ = _uiColor;
rlm@1:   }
rlm@1: 
rlm@1:   queue_draw_area(0, 0, m_iAreaWidth, m_iAreaHeight);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vUpdateSize()
rlm@1: {
rlm@1:   if (m_puiPixels != NULL)
rlm@1:   {
rlm@1:     delete[] m_puiPixels;
rlm@1:   }
rlm@1: 
rlm@1:   if (m_puiDelta != NULL)
rlm@1:   {
rlm@1:     delete[] m_puiDelta;
rlm@1:   }
rlm@1: 
rlm@1:   m_iAreaWidth  = m_iScale * m_iWidth;
rlm@1:   m_iAreaHeight = m_iScale * m_iHeight;
rlm@1:   m_iRowStride  = m_iAreaWidth * 4;
rlm@1: 
rlm@1:   m_puiPixels = new u32[m_iAreaWidth * m_iAreaHeight];
rlm@1: 
rlm@1:   m_puiDelta = new u8[(m_iWidth + 2) * (m_iHeight + 2) * 4];
rlm@1:   memset(m_puiDelta, 255, (m_iWidth + 2) * (m_iHeight + 2) * 4);
rlm@1: 
rlm@1:   set_size_request(m_iAreaWidth, m_iAreaHeight);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vStartCursorTimeout()
rlm@1: {
rlm@1:   m_oCursorSig.disconnect();
rlm@1:   m_oCursorSig = Glib::signal_timeout().connect(
rlm@1:     SigC::slot(*this, &ScreenArea::bOnCursorTimeout),
rlm@1:     2000);
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vStopCursorTimeout()
rlm@1: {
rlm@1:   m_oCursorSig.disconnect();
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vHideCursor()
rlm@1: {
rlm@1:   get_window()->set_cursor(*m_poEmptyCursor);
rlm@1:   m_bShowCursor = false;
rlm@1: }
rlm@1: 
rlm@1: void ScreenArea::vShowCursor()
rlm@1: {
rlm@1:   get_window()->set_cursor();
rlm@1:   m_bShowCursor = true;
rlm@1: }
rlm@1: 
rlm@1: bool ScreenArea::on_expose_event(GdkEventExpose * _pstEvent)
rlm@1: {
rlm@1:   if (_pstEvent->area.x + _pstEvent->area.width > m_iAreaWidth
rlm@1:       || _pstEvent->area.y + _pstEvent->area.height > m_iAreaHeight)
rlm@1:   {
rlm@1:     return false;
rlm@1:   }
rlm@1: 
rlm@1:   guchar * puiAreaPixels = (guchar *)m_puiPixels;
rlm@1: 
rlm@1:   if (_pstEvent->area.x != 0)
rlm@1:   {
rlm@1:     puiAreaPixels += _pstEvent->area.x << 2;
rlm@1:   }
rlm@1: 
rlm@1:   if (_pstEvent->area.y != 0)
rlm@1:   {
rlm@1:     puiAreaPixels += _pstEvent->area.y * m_iRowStride;
rlm@1:   }
rlm@1: 
rlm@1:   get_window()->draw_rgb_32_image(get_style()->get_fg_gc(get_state()),
rlm@1:                                   _pstEvent->area.x,
rlm@1:                                   _pstEvent->area.y,
rlm@1:                                   _pstEvent->area.width,
rlm@1:                                   _pstEvent->area.height,
rlm@1:                                   Gdk::RGB_DITHER_MAX,
rlm@1:                                   puiAreaPixels,
rlm@1:                                   m_iRowStride);
rlm@1:   return true;
rlm@1: }
rlm@1: 
rlm@1: bool ScreenArea::on_motion_notify_event(GdkEventMotion * _pstEvent)
rlm@1: {
rlm@1:   if (! m_bShowCursor)
rlm@1:   {
rlm@1:     vShowCursor();
rlm@1:   }
rlm@1:   vStartCursorTimeout();
rlm@1:   return false;
rlm@1: }
rlm@1: 
rlm@1: bool ScreenArea::on_enter_notify_event(GdkEventCrossing * _pstEvent)
rlm@1: {
rlm@1:   vStartCursorTimeout();
rlm@1:   return false;
rlm@1: }
rlm@1: 
rlm@1: bool ScreenArea::on_leave_notify_event(GdkEventCrossing * _pstEvent)
rlm@1: {
rlm@1:   vStopCursorTimeout();
rlm@1:   if (! m_bShowCursor)
rlm@1:   {
rlm@1:     vShowCursor();
rlm@1:   }
rlm@1:   return false;
rlm@1: }
rlm@1: 
rlm@1: bool ScreenArea::bOnCursorTimeout()
rlm@1: {
rlm@1:   vHideCursor();
rlm@1:   return false;
rlm@1: }
rlm@1: 
rlm@1: } // namespace VBA