// // 16bit Normal // void CDirectDraw::Render16bpp_Normal( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite ) { LPBYTE pScn = lpRdr; LPBYTE pDst = (LPBYTE)ddsd.lpSurface; LPBYTE pDlt = (LPBYTE)lpDlt; LPBYTE pPal; DWORD width; DWORD pitch = ddsd.lPitch; for( INT i = 0; i < SCREEN_HEIGHT; i++ ) { if( !(m_LineColormode[i]&0x80) ) { pPal = (LPBYTE)m_cnPalette[m_LineColormode[i]&0x07]; } else { pPal = (LPBYTE)m_mnPalette[m_LineColormode[i]&0x07]; } BOOL bFWrite = FALSE; if( bForceWrite || *pDlt != m_LineColormode[i] ) { bFWrite = TRUE; *pDlt = m_LineColormode[i]; } pDlt += 4; width = SCREEN_WIDTH; if( bFWrite ) { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_loop_fw: mov edx, [eax+0] mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx mov edx, [eax+4] mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bn_loop_fw } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } else { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_loop: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bn_skip1 mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx _r16bn_skip1: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bn_skip2 mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx _r16bn_skip2: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bn_loop } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } } } // // 16bit Scanline // void CDirectDraw::Render16bpp_Scanline( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite ) { LPBYTE pScn = lpRdr; LPBYTE pDst = (LPBYTE)ddsd.lpSurface; LPBYTE pDlt = (LPBYTE)lpDlt; LPBYTE pPal, pPalScan; DWORD width = SCREEN_WIDTH; DWORD pitch = ddsd.lPitch; for( INT i = 0; i < SCREEN_HEIGHT; i++ ) { if( !(m_LineColormode[i]&0x80) ) { pPal = (LPBYTE)m_cnPalette[m_LineColormode[i]&0x07]; pPalScan = (LPBYTE)m_csPalette[m_LineColormode[i]&0x07]; } else { pPal = (LPBYTE)m_mnPalette[m_LineColormode[i]&0x07]; pPalScan = (LPBYTE)m_msPalette[m_LineColormode[i]&0x07]; } BOOL bFWrite = FALSE; if( bForceWrite || *pDlt != m_LineColormode[i] ) { bFWrite = TRUE; *pDlt = m_LineColormode[i]; } pDlt += 4; width = SCREEN_WIDTH; if( bFWrite ) { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bs_loop_fw: // check previous!! mov edx, [eax+0] mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx // check previous!! mov edx, [eax+4] mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bs_loop_fw } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPalScan mov edi, pDst _r16bs_loop2_fw: mov edx, [eax+0] // mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx mov edx, [eax+4] // mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bs_loop2_fw } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } else { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bs_loop: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bs_skip1 // mov [ebx+0], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx _r16bs_skip1: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bs_skip2 // mov [ebx+4], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx _r16bs_skip2: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bs_loop } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPalScan mov edi, pDst _r16bs_loop2: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bs_skip3 mov [ebx+0], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 2], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 4], cx mov [edi+ 6], dx _r16bs_skip3: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bs_skip4 mov [ebx+4], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 8], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+10], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+12], cx mov [edi+14], dx _r16bs_skip4: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+16] sub width, 8 jg _r16bs_loop2 } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } } } // // 16bit Double // void CDirectDraw::Render16bpp_Double( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite ) { LPBYTE pScn = lpRdr; LPBYTE pDst = (LPBYTE)ddsd.lpSurface; LPBYTE pDlt = (LPBYTE)lpDlt; LPBYTE pPal; DWORD width; DWORD pitch = ddsd.lPitch; for( INT i = 0; i < SCREEN_HEIGHT; i++ ) { if( !(m_LineColormode[i]&0x80) ) { pPal = (LPBYTE)m_cnPalette[m_LineColormode[i]&0x07]; } else { pPal = (LPBYTE)m_mnPalette[m_LineColormode[i]&0x07]; } BOOL bFWrite = FALSE; if( bForceWrite || *pDlt != m_LineColormode[i] ) { bFWrite = TRUE; *pDlt = m_LineColormode[i]; } pDlt += 4; width = SCREEN_WIDTH; if( bFWrite ) { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_d_loop_fw: mov edx, [eax+0] mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx mov edx, [eax+4] mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bn_d_loop_fw } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_d_loop2_fw: mov edx, [eax+0] movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx mov edx, [eax+4] movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bn_d_loop2_fw } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } else { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_d_loop: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bn_d_skip1 // mov [ebx+0], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx _r16bn_d_skip1: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bn_d_skip2 // mov [ebx+4], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx _r16bn_d_skip2: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bn_d_loop } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bn_d_loop2: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bn_d_skip3 mov [ebx+0], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx _r16bn_d_skip3: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bn_d_skip4 mov [ebx+4], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx _r16bn_d_skip4: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bn_d_loop2 } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } } } // // 16bit Double Scanline // void CDirectDraw::Render16bpp_DoubleScanline( LPBYTE lpRdr, LPBYTE lpDlt, DDSURFACEDESC2& ddsd, BOOL bForceWrite ) { LPBYTE pScn = lpRdr; LPBYTE pDst = (LPBYTE)ddsd.lpSurface; LPBYTE pDlt = (LPBYTE)lpDlt; LPBYTE pPal, pPalScan; DWORD width; DWORD pitch = ddsd.lPitch; for( INT i = 0; i < SCREEN_HEIGHT; i++ ) { if( !(m_LineColormode[i]&0x80) ) { pPal = (LPBYTE)m_cnPalette[m_LineColormode[i]&0x07]; pPalScan = (LPBYTE)m_csPalette[m_LineColormode[i]&0x07]; } else { pPal = (LPBYTE)m_mnPalette[m_LineColormode[i]&0x07]; pPalScan = (LPBYTE)m_msPalette[m_LineColormode[i]&0x07]; } BOOL bFWrite = FALSE; if( bForceWrite || *pDlt != m_LineColormode[i] ) { bFWrite = TRUE; *pDlt = m_LineColormode[i]; } pDlt += 4; width = SCREEN_WIDTH; if( bFWrite ) { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bs_d_loop_fw: mov edx, [eax+0] mov [ebx+0], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx // check previous!! mov edx, [eax+4] mov [ebx+4], edx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bs_d_loop_fw } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPalScan mov edi, pDst _r16bs_d_loop2_fw: mov edx, [eax+0] movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx mov edx, [eax+4] movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bs_d_loop2_fw } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } else { __asm { mov eax, pScn mov ebx, pDlt mov esi, pPal mov edi, pDst _r16bs_d_loop: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bs_d_skip1 // mov [ebx+0], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx _r16bs_d_skip1: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bs_d_skip2 // mov [ebx+4], edx // 1回目は書き込まない movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx _r16bs_d_skip2: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bs_d_loop } width = SCREEN_WIDTH; pDst += pitch; __asm { mov eax, pScn mov ebx, pDlt mov esi, pPalScan mov edi, pDst _r16bs_d_loop2: // check previous!! mov edx, [eax+0] cmp edx, [ebx+0] je _r16bs_d_skip3 mov [ebx+0], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 0], cx mov [edi+ 2], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+ 4], cx mov [edi+ 6], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+ 8], cx mov [edi+10], cx mov [edi+12], dx mov [edi+14], dx _r16bs_d_skip3: // check previous!! mov edx, [eax+4] cmp edx, [ebx+4] je _r16bs_d_skip4 mov [ebx+4], edx // 2回目は書き込む movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+16], cx mov [edi+18], cx movzx ecx, dl mov ecx, [esi+ecx*4] shr edx, 8 mov [edi+20], cx mov [edi+22], cx movzx ecx, dl shr edx, 8 mov ecx, [esi+ecx*4] mov edx, [esi+edx*4] mov [edi+24], cx mov [edi+26], cx mov [edi+28], dx mov [edi+30], dx _r16bs_d_skip4: lea eax, [eax+ 8] lea ebx, [ebx+ 8] lea edi, [edi+32] sub width, 8 jg _r16bs_d_loop2 } pScn += RENDER_WIDTH; pDlt += SCREEN_WIDTH; pDst += pitch; } } }