/* $Id: wmesa.c,v 1.23 2001/11/01 22:44:47 kschultz Exp $ */ /* * Windows (Win32) device driver for Mesa 3.4 * * Original author: * * Copyright (C) 1996- Li Wei * Address : Institute of Artificial Intelligence * : & Robotics * : Xi'an Jiaotong University * Email : liwei@aiar.xjtu.edu.cn * Web page : http://sun.aiar.xjtu.edu.cn * * This file and its associations are partially borrowed from the * Windows NT driver for Mesa 1.8 , written by Mark Leaming * (mark@rsinc.com). * * Updated for Mesa 4.0 by Karl Schultz (kschultz@sourceforge.net) */ #ifdef NDEBUG #pragma auto_inline(on) #pragma inline_depth(255) #pragma inline_recursion(on) #endif #include "wmesadef.h" #include #include "mesa_extend.h" #include "glheader.h" #include "colors.h" #include "context.h" #include "colormac.h" #include "dd.h" #include "depth.h" #include "extensions.h" #include "macros.h" #include "matrix.h" #include "mem.h" #include "mmath.h" #include "mtypes.h" #include "texformat.h" #include "texstore.h" #include "array_cache/acache.h" #include "swrast/swrast.h" #include "swrast_setup/swrast_setup.h" #include "swrast/s_context.h" #include "swrast/s_depth.h" #include "swrast/s_lines.h" #include "swrast/s_triangle.h" #include "swrast/s_trispan.h" #include "tnl/tnl.h" #include "tnl/t_context.h" #include "tnl/t_pipeline.h" /* Dither not tested for Mesa 4.0 */ #ifdef DITHER #ifdef USE_WING #include #endif // USE_WING #endif #ifdef __CYGWIN32__ #include "macros.h" #include #define CopyMemory memcpy #endif /* Stereo and parallel not tested for Mesa 4.0. */ #if !defined(NO_STEREO) #include "gl\glu.h" #include "stereo.h" #endif #if !defined(NO_PARALLEL) #include "parallel.h" #endif /* File global varaibles */ struct DISPLAY_OPTIONS displayOptions = { 0, // stereo 0, // fullScreen 0, // full screen mode (1,2,3,4) 0 // bpp (8,16,24,32) }; GLenum stereoCompile = GL_FALSE ; GLenum stereoShowing = GL_FALSE ; GLenum stereoBuffer = GL_FALSE; #if !defined(NO_STEREO) GLint displayList = MAXIMUM_DISPLAY_LIST ; #endif GLint stereo_flag = 0 ; static PWMC Current = NULL; WMesaContext WC = NULL; #ifdef COMPILE_SETPIXEL __forceinline void wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { pwc->wmSetPixel(pwc,iScanLine,iPixel,r,g,b); } void ChooseSetPixel(PWMC pwc); #endif // COMPILE_SETPIXEL /* If we are double-buffering, we want to get the DC for the * off-screen DIB, otherwise the DC for the window. */ #define DD_GETDC ((Current->db_flag) ? Current->dib.hDC : Current->hDC ) #define DD_RELEASEDC #define FLIP(Y) (Current->height-(Y)-1) #define DITHER_RGB_TO_8BIT_SETUP \ GLubyte pixelDithered; #define DITHER_RGB_TO_8BIT(red, green, blue, pixel, scanline) \ { \ char unsigned redtemp, greentemp, bluetemp, paletteindex; \ redtemp = aDividedBy51[red] \ + (aModulo51[red] > aHalftone8x8[(pixel%8)*8 \ + scanline%8]); \ greentemp = aDividedBy51[(char unsigned)green] \ + (aModulo51[green] > aHalftone8x8[ \ (pixel%8)*8 + scanline%8]); \ bluetemp = aDividedBy51[(char unsigned)blue] \ + (aModulo51[blue] > aHalftone8x8[ \ (pixel%8)*8 +scanline%8]); \ paletteindex = redtemp + aTimes6[greentemp] + aTimes36[bluetemp];\ pixelDithered = aWinGHalftoneTranslation[paletteindex]; \ } #ifdef DDRAW static BOOL DDInit( WMesaContext wc, HWND hwnd); static void DDFree( WMesaContext wc); static HRESULT DDRestoreAll( WMesaContext wc ); static void DDDeleteOffScreen(WMesaContext wc); static BOOL DDCreateOffScreen(WMesaContext wc); // define this to use the GDI Rectangle call to // clear the back buffer. Otherwise will manually // set the pixels. On an NVidia GEForce 2MX under Windows XP // and DirectX 8 , defining this makes apps run much much faster #define USE_GDI_TO_CLEAR 1 #endif static void FlushToFile(PWMC pwc, PSTR szFile); BOOL wmCreateBackingStore(PWMC pwc, long lxSize, long lySize); BOOL wmDeleteBackingStore(PWMC pwc); void wmCreatePalette( PWMC pwdc ); BOOL wmSetDibColors(PWMC pwc); void wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b); BOOL wmFlush(PWMC pwc); void wmCreateDIBSection( HDC hDC, PWMC pwc, // handle of device context CONST BITMAPINFO *pbmi, // bitmap size, format, and color data UINT iUsage // color data type indicator: RGB values or palette indices ); void WMesaViewport( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height ); static void wmSetPixelFormat( PWMC wc, HDC hDC) { if(wc->rgb_flag) wc->cColorBits = GetDeviceCaps(hDC, BITSPIXEL); else wc->cColorBits = 8; switch(wc->cColorBits){ case 8: if(wc->dither_flag != GL_TRUE) wc->pixelformat = PF_INDEX8; else wc->pixelformat = PF_DITHER8; break; case 16: wc->pixelformat = PF_5R6G5B; break; case 32: wc->pixelformat = PF_8R8G8B; break; default: wc->pixelformat = PF_BADFORMAT; } } /* This function sets the color table of a DIB section * to match that of the destination DC */ BOOL wmSetDibColors(PWMC pwc) { RGBQUAD *pColTab, *pRGB; PALETTEENTRY *pPal, *pPE; int i, nColors; BOOL bRet=TRUE; DWORD dwErr=0; /* Build a color table in the DIB that maps to the * selected palette in the DC. */ nColors = 1 << pwc->cColorBits; pPal = (PALETTEENTRY *)malloc( nColors * sizeof(PALETTEENTRY)); memset( pPal, 0, nColors * sizeof(PALETTEENTRY) ); GetPaletteEntries( pwc->hGLPalette, 0, nColors, pPal ); pColTab = (RGBQUAD *)malloc( nColors * sizeof(RGBQUAD)); for (i = 0, pRGB = pColTab, pPE = pPal; i < nColors; i++, pRGB++, pPE++) { pRGB->rgbRed = pPE->peRed; pRGB->rgbGreen = pPE->peGreen; pRGB->rgbBlue = pPE->peBlue; } if(pwc->db_flag) bRet = SetDIBColorTable(pwc->dib.hDC, 0, nColors, pColTab ); if(!bRet) dwErr = GetLastError(); free( pColTab ); free( pPal ); return bRet; } /* * Free up the dib section that was created */ BOOL wmDeleteBackingStore(PWMC pwc) { SelectObject(pwc->dib.hDC, pwc->hOldBitmap); DeleteDC(pwc->dib.hDC); DeleteObject(pwc->hbmDIB); #ifdef USE_MAPPED_FILE UnmapViewOfFile(pwc->dib.base); CloseHandle(pwc->dib.hFileMap); #endif return TRUE; } /* * This function creates the DIB section that is used for combined * GL and GDI calls */ BOOL wmCreateBackingStore(PWMC pwc, long lxSize, long lySize) { HDC hdc = pwc->hDC; LPBITMAPINFO pbmi = &(pwc->bmi); int iUsage; pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); pbmi->bmiHeader.biWidth = lxSize; pbmi->bmiHeader.biHeight= -lySize; pbmi->bmiHeader.biPlanes = 1; if(pwc->rgb_flag) pbmi->bmiHeader.biBitCount = GetDeviceCaps(pwc->hDC, BITSPIXEL); else pbmi->bmiHeader.biBitCount = 8; pbmi->bmiHeader.biCompression = BI_RGB; pbmi->bmiHeader.biSizeImage = 0; pbmi->bmiHeader.biXPelsPerMeter = 0; pbmi->bmiHeader.biYPelsPerMeter = 0; pbmi->bmiHeader.biClrUsed = 0; pbmi->bmiHeader.biClrImportant = 0; iUsage = (pbmi->bmiHeader.biBitCount <= 8) ? DIB_PAL_COLORS : DIB_RGB_COLORS; pwc->cColorBits = pbmi->bmiHeader.biBitCount; pwc->ScanWidth = pwc->pitch = lxSize; wmCreateDIBSection(hdc, pwc, pbmi, iUsage); if ((iUsage == DIB_PAL_COLORS) && !(pwc->hGLPalette)) { wmCreatePalette( pwc ); wmSetDibColors( pwc ); } wmSetPixelFormat(pwc, pwc->hDC); return TRUE; } #if 0 // D.R.S. 10/30/01 - this function is never referenced /* * This function copies one scan line in a DIB section to another */ BOOL wmSetDIBits(PWMC pwc, UINT uiScanWidth, UINT uiNumScans, UINT nBypp, UINT uiNewWidth, LPBYTE pBits) { UINT uiScans = 0; LPBYTE pDest = pwc->pbPixels; DWORD dwNextScan = uiScanWidth; DWORD dwNewScan = uiNewWidth; DWORD dwScanWidth = (uiScanWidth * nBypp); /* * We need to round up to the nearest DWORD * and multiply by the number of bytes per * pixel */ dwNextScan = (((dwNextScan * nBypp)+ 3) & ~3); dwNewScan = (((dwNewScan * nBypp)+ 3) & ~3); for(uiScans = 0; uiScans < uiNumScans; uiScans++){ CopyMemory(pDest, pBits, dwScanWidth); pBits += dwNextScan; pDest += dwNewScan; } return TRUE; } #endif // 0 #if defined(FAST_RASTERIZERS) #define PIXELADDR(X,Y) \ ((GLubyte *)Current->pbPixels + (Current->height-Y-1)* \ Current->ScanWidth + (X)*nBypp) #define PIXELADDR1( X, Y ) \ ((GLubyte *)wmesa->pbPixels + (wmesa->height-Y-1)* wmesa->ScanWidth + (X)) #define PIXELADDR2( X, Y ) \ ((GLubyte *)wmesa->pbPixels + (wmesa->height-Y-1)* wmesa->ScanWidth + (X)*2) #define PIXELADDR4( X, Y ) \ ((GLubyte *)wmesa->pbPixels + (wmesa->height-Y-1)* wmesa->ScanWidth + (X)*4) #endif // 0 BYTE DITHER_RGB_2_8BIT( int r, int g, int b, int x, int y); /* Finish all pending operations and synchronize. */ static void finish(GLcontext* ctx) { /* No op */ } static void flush(GLcontext* ctx) { if((Current->rgb_flag &&!(Current->db_flag)) ||(!Current->rgb_flag)) { wmFlush(Current); } } /* * Set the color index used to clear the color buffer. */ static void clear_index(GLcontext* ctx, GLuint index) { Current->clearpixel = index; } /* * Set the color used to clear the color buffer. */ static void clear_color( GLcontext* ctx, const GLchan color[4] ) { Current->clearpixel = RGB(color[0], color[1], color[2]); } /* * Clear the specified region of the color buffer using the clear color * or index as specified by one of the two functions above. * * This procedure clears either the front and/or the back COLOR buffers. * Only the "left" buffer is cleared since we are not stereo. * Clearing of the other non-color buffers is left to the swrast. * We also only clear the color buffers if the color masks are all 1's. * Otherwise, we let swrast do it. */ static clear(GLcontext* ctx, GLbitfield mask, GLboolean all, GLint x, GLint y, GLint width, GLint height) { const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask; if (all){ x=y=0; width=Current->width; height=Current->height; } /* sanity check - can't have right(stereo) buffers */ assert((mask & (DD_FRONT_RIGHT_BIT | DD_BACK_RIGHT_BIT)) == 0); if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) { if (mask & DD_BACK_LEFT_BIT) { #if defined(USE_GDI_TO_CLEAR) #if defined(DDRAW) // D.R.S. 10/29/01 on my system (Pentium 4 with nvidia GeForce2 MX card, // this is almose 100 times faster that the code below HDC DC=NULL; HPEN Pen=CreatePen(PS_SOLID,1,Current->clearpixel); HBRUSH Brush=CreateSolidBrush(Current->clearpixel); HPEN Old_Pen=NULL; HBRUSH Old_Brush=NULL; Current->lpDDSOffScreen->lpVtbl->Unlock(Current->lpDDSOffScreen,NULL); Current->lpDDSOffScreen->lpVtbl->GetDC(Current->lpDDSOffScreen,&DC); Old_Pen=SelectObject(DC,Pen); Old_Brush=SelectObject(DC,Brush); Rectangle(DC,x,y,x+width,y+height); SelectObject(DC,Old_Pen); SelectObject(DC,Old_Brush); DeleteObject(Pen); DeleteObject(Brush); Current->lpDDSOffScreen->lpVtbl->ReleaseDC(Current->lpDDSOffScreen,DC); while (Current->lpDDSOffScreen->lpVtbl->Lock(Current->lpDDSOffScreen,NULL, &(Current->ddsd), 0, NULL) == DDERR_WASSTILLDRAWING); mask &= ~DD_BACK_LEFT_BIT; #else /* single-buffer */ HDC DC=DD_GETDC; HPEN Pen=CreatePen(PS_SOLID,1,Current->clearpixel); HBRUSH Brush=CreateSolidBrush(Current->clearpixel); HPEN Old_Pen=SelectObject(DC,Pen); HBRUSH Old_Brush=SelectObject(DC,Brush); Rectangle(DC,x+Current->rectSurface.left,Current->rectSurface.top+y,x+width+Current->rectSurface.left,y+height+Current->rectSurface.top); SelectObject(DC,Old_Pen); SelectObject(DC,Old_Brush); DeleteObject(Pen); DeleteObject(Brush); DD_RELEASEDC; mask &= ~DD_BACK_LEFT_BIT; #endif // DDRAW #else DWORD dwColor; WORD wColor; BYTE bColor; LPDWORD lpdw = (LPDWORD)Current->pbPixels; LPWORD lpw = (LPWORD)Current->pbPixels; LPBYTE lpb = Current->pbPixels; int lines; /* Double-buffering - clear back buffer */ UINT nBypp = Current->cColorBits / 8; int i = 0; int iSize = 0; assert(Current->db_flag==GL_TRUE); /* we'd better be double buffer */ if(nBypp ==1 ){ iSize = Current->width/4; bColor = BGR8(GetRValue(Current->clearpixel), GetGValue(Current->clearpixel), GetBValue(Current->clearpixel)); wColor = MAKEWORD(bColor,bColor); dwColor = MAKELONG(wColor, wColor); } if(nBypp == 2){ iSize = Current->width / 2; wColor = BGR16(GetRValue(Current->clearpixel), GetGValue(Current->clearpixel), GetBValue(Current->clearpixel)); dwColor = MAKELONG(wColor, wColor); } else if(nBypp == 4){ iSize = Current->width; dwColor = BGR32(GetRValue(Current->clearpixel), GetGValue(Current->clearpixel), GetBValue(Current->clearpixel)); } /* clear a line */ while(i < iSize){ *lpdw = dwColor; lpdw++; i++; } /* This is the 24bit case */ if (nBypp == 3) { iSize = Current->width *3/4; dwColor = BGR24(GetRValue(Current->clearpixel), GetGValue(Current->clearpixel), GetBValue(Current->clearpixel)); while(i < iSize){ *lpdw = dwColor; lpb += nBypp; lpdw = (LPDWORD)lpb; i++; } } i = 0; if (stereo_flag) lines = height /2; else lines = height; /* copy cleared line to other lines in buffer */ do { memcpy(lpb, Current->pbPixels, iSize*4); lpb += Current->ScanWidth; i++; } while (iclearpixel); HBRUSH Brush=CreateSolidBrush(Current->clearpixel); HPEN Old_Pen=SelectObject(DC,Pen); HBRUSH Old_Brush=SelectObject(DC,Brush); Rectangle(DC,x+Current->rectSurface.left,Current->rectSurface.top+y,x+width+Current->rectSurface.left,y+height+Current->rectSurface.top); SelectObject(DC,Old_Pen); SelectObject(DC,Old_Brush); DeleteObject(Pen); DeleteObject(Brush); DD_RELEASEDC; mask &= ~DD_FRONT_LEFT_BIT; } /* single-buffer */ } /* if masks are all 1's */ /* Call swrast if there is anything left to clear (like DEPTH) */ if (mask) _swrast_Clear( ctx, mask, all, x, y, width, height ); } static void enable( GLcontext* ctx, GLenum pname, GLboolean enable ) { if (!Current) return; if (pname == GL_DITHER) { if(enable == GL_FALSE){ Current->dither_flag = GL_FALSE; if(Current->cColorBits == 8) Current->pixelformat = PF_INDEX8; } else{ if (Current->rgb_flag && Current->cColorBits == 8){ Current->pixelformat = PF_DITHER8; Current->dither_flag = GL_TRUE; } else Current->dither_flag = GL_FALSE; } } } static GLboolean set_draw_buffer( GLcontext* ctx, GLenum mode ) { /* TODO: this could be better */ if (mode==GL_FRONT_LEFT || mode==GL_BACK_LEFT) { return GL_TRUE; } else { return GL_FALSE; } } static void set_read_buffer(GLcontext *ctx, GLframebuffer *colorBuffer, GLenum buffer ) { /* XXX todo */ return; } /* Return characteristics of the output buffer. */ static void buffer_size( GLcontext* ctx, GLuint *width, GLuint *height ) { int New_Size; RECT CR; GetClientRect(Current->Window,&CR); *width=CR.right; *height=CR.bottom; New_Size=((*width)!=Current->width) || ((*height)!=Current->height); if (New_Size){ Current->width=*width; Current->height=*height; Current->ScanWidth=Current->width; if ((Current->ScanWidth%sizeof(long))!=0) Current->ScanWidth+=(sizeof(long)-(Current->ScanWidth%sizeof(long))); if (Current->db_flag){ #ifdef DDRAW DDDeleteOffScreen(Current); DDCreateOffScreen(Current); #else if (Current->rgb_flag==GL_TRUE && Current->dither_flag!=GL_TRUE){ wmDeleteBackingStore(Current); wmCreateBackingStore(Current, Current->width, Current->height); } #endif } /* Resize OsmesaBuffer if in Parallel mode */ #if !defined(NO_PARALLEL) if(parallelFlag) PRSizeRenderBuffer(Current->width, Current->height,Current->ScanWidth, Current->rgb_flag == GL_TRUE ? Current->pbPixels: Current->ScreenMem); #endif } } /**********************************************************************/ /***** Accelerated point, line, polygon rendering *****/ /**********************************************************************/ /* Accelerated routines are not implemented in 4.0. See OSMesa for ideas. */ static void fast_rgb_points( GLcontext* ctx, GLuint first, GLuint last ) { } /* Return pointer to accelerated points function */ extern points_func choose_points_function( GLcontext* ctx ) { return NULL; } static void fast_flat_rgb_line( GLcontext* ctx, GLuint v0, GLuint v1, GLuint pv ) { } static line_func choose_line_function( GLcontext* ctx ) { } /**********************************************************************/ /***** Span-based pixel drawing *****/ /**********************************************************************/ /* Write a horizontal span of 32-bit color-index pixels with a boolean mask. */ static void write_ci32_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, const GLuint index[], const GLubyte mask[] ) { GLuint i; PBYTE Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x; assert(Current->rgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y)*Current->ScanWidth+x; assert(Current->rgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y)*Current->ScanWidth+x; assert(Current->rgb_flag==GL_FALSE); for (i=0; irgb_flag==GL_TRUE) { GLuint i; HDC DC=DD_GETDC; y=FLIP(y); if (mask) { for (i=0; iScreenMem+y*Current->ScanWidth+x; y = FLIP(y); if (mask) { for (i=0; ihPal, RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP])); } else { for (i=0; ihPal, RGB(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP])); } } } /* Write a horizontal span of RGB color pixels with a boolean mask. */ static void write_rgb_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, const GLubyte rgb[][3], const GLubyte mask[] ) { PWMC pwc = Current; if (pwc->rgb_flag==GL_TRUE) { GLuint i; HDC DC=DD_GETDC; y=FLIP(y); if (mask) { for (i=0; iScreenMem+y*Current->ScanWidth+x; y = FLIP(y); if (mask) { for (i=0; ihPal, RGB(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP])); } else { for (i=0; ihPal, RGB(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP])); } } } /* * Write a horizontal span of pixels with a boolean mask. The current color * is used for all pixels. */ static void write_mono_rgba_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, const GLchan color[4], const GLubyte mask[]) { GLuint i; PWMC pwc = Current; assert(Current->rgb_flag==GL_TRUE); y=FLIP(y); if(Current->rgb_flag==GL_TRUE) { for (i=0; irgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]; *Mem = index[i]; } } } /* * Write an array of pixels with a boolean mask. The current color * index is used for all pixels. */ static void write_mono_ci_pixels( const GLcontext* ctx, GLuint n, const GLint x[], const GLint y[], GLuint colorIndex, const GLubyte mask[] ) { GLuint i; assert(Current->rgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]; *Mem = colorIndex; } } } /* Write an array of RGBA pixels with a boolean mask. */ static void write_rgba_pixels( const GLcontext* ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte rgba[][4], const GLubyte mask[] ) { GLuint i; PWMC pwc = Current; HDC DC=DD_GETDC; assert(Current->rgb_flag==GL_TRUE); for (i=0; irgb_flag==GL_TRUE); for (i=0; iScreenMem+FLIP(y)*Current->ScanWidth+x; assert(Current->rgb_flag==GL_FALSE); for (i=0; irgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]); } } } /* Read a horizontal span of color pixels. */ static void read_rgba_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, GLubyte rgba[][4] ) { UINT i; COLORREF Color; HDC DC=DD_GETDC; assert(Current->rgb_flag==GL_TRUE); y = Current->height - y - 1; for (i=0; irgb_flag==GL_TRUE); for (i=0; iheight - y[i] - 1; Color=GetPixel(DC,x[i],y2); rgba[i][RCOMP] = GetRValue(Color); rgba[i][GCOMP] = GetGValue(Color); rgba[i][BCOMP] = GetBValue(Color); rgba[i][ACOMP] = 255; } } DD_RELEASEDC; } /**********************************************************************/ /**********************************************************************/ static const GLubyte *get_string(GLcontext *ctx, GLenum name) { if (name == GL_RENDERER) { return (GLubyte *) "Mesa Windows"; } else { return NULL; } } static void wmesa_update_state( GLcontext *ctx, GLuint new_state ); static void SetFunctionPointers(GLcontext *ctx) { struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx ); ctx->Driver.GetString = get_string; ctx->Driver.UpdateState = wmesa_update_state; ctx->Driver.SetDrawBuffer = set_draw_buffer; ctx->Driver.ResizeBuffersMESA = _swrast_alloc_buffers; ctx->Driver.GetBufferSize = buffer_size; ctx->Driver.Accum = _swrast_Accum; ctx->Driver.Bitmap = _swrast_Bitmap; ctx->Driver.Clear = clear; ctx->Driver.Flush = flush; ctx->Driver.ClearIndex = clear_index; ctx->Driver.ClearColor = clear_color; ctx->Driver.Enable = enable; ctx->Driver.CopyPixels = _swrast_CopyPixels; ctx->Driver.DrawPixels = _swrast_DrawPixels; ctx->Driver.ReadPixels = _swrast_ReadPixels; ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format; ctx->Driver.TexImage1D = _mesa_store_teximage1d; ctx->Driver.TexImage2D = _mesa_store_teximage2d; ctx->Driver.TexImage3D = _mesa_store_teximage3d; ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d; ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d; ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d; ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage; ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d; ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d; ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d; ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d; ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d; ctx->Driver.CopyColorTable = _swrast_CopyColorTable; ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable; ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D; ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D; ctx->Driver.BaseCompressedTexFormat = _mesa_base_compressed_texformat; ctx->Driver.CompressedTextureSize = _mesa_compressed_texture_size; ctx->Driver.GetCompressedTexImage = _mesa_get_compressed_teximage; swdd->SetReadBuffer = set_read_buffer; /* Pixel/span writing functions: */ swdd->WriteRGBASpan = write_rgba_span; swdd->WriteRGBSpan = write_rgb_span; swdd->WriteMonoRGBASpan = write_mono_rgba_span; swdd->WriteRGBAPixels = write_rgba_pixels; swdd->WriteMonoRGBAPixels = write_mono_rgba_pixels; swdd->WriteCI32Span = write_ci32_span; swdd->WriteCI8Span = write_ci8_span; swdd->WriteMonoCISpan = write_mono_ci_span; swdd->WriteCI32Pixels = write_ci32_pixels; swdd->WriteMonoCIPixels = write_mono_ci_pixels; swdd->ReadCI32Span = read_ci32_span; swdd->ReadRGBASpan = read_rgba_span; swdd->ReadCI32Pixels = read_ci32_pixels; swdd->ReadRGBAPixels = read_rgba_pixels; } static void wmesa_update_state( GLcontext *ctx, GLuint new_state ) { struct swrast_device_driver *swdd = _swrast_GetDeviceDriverReference( ctx ); TNLcontext *tnl = TNL_CONTEXT(ctx); /* * XXX these function pointers could be initialized just once during * context creation since they don't depend on any state changes. * kws - This is true - this function gets called a lot and it * would be good to minimize setting all this when not needed. */ #ifndef SET_FPOINTERS_ONCE SetFunctionPointers(ctx); #if 0 ctx->Driver.GetString = get_string; ctx->Driver.UpdateState = wmesa_update_state; ctx->Driver.SetDrawBuffer = set_draw_buffer; ctx->Driver.ResizeBuffersMESA = _swrast_alloc_buffers; ctx->Driver.GetBufferSize = buffer_size; ctx->Driver.Accum = _swrast_Accum; ctx->Driver.Bitmap = _swrast_Bitmap; ctx->Driver.Clear = clear; ctx->Driver.Flush = flush; ctx->Driver.ClearIndex = clear_index; ctx->Driver.ClearColor = clear_color; ctx->Driver.Enable = enable; ctx->Driver.CopyPixels = _swrast_CopyPixels; ctx->Driver.DrawPixels = _swrast_DrawPixels; ctx->Driver.ReadPixels = _swrast_ReadPixels; ctx->Driver.ChooseTextureFormat = _mesa_choose_tex_format; ctx->Driver.TexImage1D = _mesa_store_teximage1d; ctx->Driver.TexImage2D = _mesa_store_teximage2d; ctx->Driver.TexImage3D = _mesa_store_teximage3d; ctx->Driver.TexSubImage1D = _mesa_store_texsubimage1d; ctx->Driver.TexSubImage2D = _mesa_store_texsubimage2d; ctx->Driver.TexSubImage3D = _mesa_store_texsubimage3d; ctx->Driver.TestProxyTexImage = _mesa_test_proxy_teximage; ctx->Driver.CopyTexImage1D = _swrast_copy_teximage1d; ctx->Driver.CopyTexImage2D = _swrast_copy_teximage2d; ctx->Driver.CopyTexSubImage1D = _swrast_copy_texsubimage1d; ctx->Driver.CopyTexSubImage2D = _swrast_copy_texsubimage2d; ctx->Driver.CopyTexSubImage3D = _swrast_copy_texsubimage3d; ctx->Driver.CopyColorTable = _swrast_CopyColorTable; ctx->Driver.CopyColorSubTable = _swrast_CopyColorSubTable; ctx->Driver.CopyConvolutionFilter1D = _swrast_CopyConvolutionFilter1D; ctx->Driver.CopyConvolutionFilter2D = _swrast_CopyConvolutionFilter2D; ctx->Driver.BaseCompressedTexFormat = _mesa_base_compressed_texformat; ctx->Driver.CompressedTextureSize = _mesa_compressed_texture_size; ctx->Driver.GetCompressedTexImage = _mesa_get_compressed_teximage; swdd->SetReadBuffer = set_read_buffer; /* Pixel/span writing functions: */ swdd->WriteRGBASpan = write_rgba_span; swdd->WriteRGBSpan = write_rgb_span; swdd->WriteMonoRGBASpan = write_mono_rgba_span; swdd->WriteRGBAPixels = write_rgba_pixels; swdd->WriteMonoRGBAPixels = write_mono_rgba_pixels; swdd->WriteCI32Span = write_ci32_span; swdd->WriteCI8Span = write_ci8_span; swdd->WriteMonoCISpan = write_mono_ci_span; swdd->WriteCI32Pixels = write_ci32_pixels; swdd->WriteMonoCIPixels = write_mono_ci_pixels; swdd->ReadCI32Span = read_ci32_span; swdd->ReadRGBASpan = read_rgba_span; swdd->ReadCI32Pixels = read_ci32_pixels; swdd->ReadRGBAPixels = read_rgba_pixels; #endif // 0 #endif // !SET_FPOINTERS_ONCE tnl->Driver.RunPipeline = _tnl_run_pipeline; _swrast_InvalidateState( ctx, new_state ); _swsetup_InvalidateState( ctx, new_state ); _ac_InvalidateState( ctx, new_state ); _tnl_InvalidateState( ctx, new_state ); } /**********************************************************************/ /***** WMesa API Functions *****/ /**********************************************************************/ #define PAL_SIZE 256 static void GetPalette(HPALETTE Pal,RGBQUAD *aRGB) { int i; HDC hdc; struct { WORD Version; WORD NumberOfEntries; PALETTEENTRY aEntries[PAL_SIZE]; } Palette = { 0x300, PAL_SIZE }; hdc=GetDC(NULL); if (Pal!=NULL) GetPaletteEntries(Pal,0,PAL_SIZE,Palette.aEntries); else GetSystemPaletteEntries(hdc,0,PAL_SIZE,Palette.aEntries); if (GetSystemPaletteUse(hdc) == SYSPAL_NOSTATIC) { for(i = 0; i Window=hWnd; c->hDC = GetDC(hWnd); true_color_flag = GetDeviceCaps(c->hDC, BITSPIXEL) > 8; #ifdef DDRAW if(true_color_flag) c->rgb_flag = rgb_flag = GL_TRUE; #endif #ifdef DITHER if ((true_color_flag==GL_FALSE) && (rgb_flag == GL_TRUE)){ c->dither_flag = GL_TRUE; #ifdef USE_WING c->hPalHalfTone = WinGCreateHalftonePalette(); #else c->hPalHalfTone = CreateHalftonePalette(c->hDC); #endif } else c->dither_flag = GL_FALSE; #else c->dither_flag = GL_FALSE; #endif if (rgb_flag==GL_FALSE) { c->rgb_flag = GL_FALSE; #if 0 /* Old WinG stuff???? */ c->db_flag = db_flag =GL_TRUE; /* WinG requires double buffering */ printf("Single buffer is not supported in color index mode, ", "setting to double buffer.\n"); #endif } else { c->rgb_flag = GL_TRUE; } GetClientRect(c->Window,&CR); c->width=CR.right; c->height=CR.bottom; if (db_flag) { c->db_flag = 1; /* Double buffered */ #ifndef DDRAW { wmCreateBackingStore(c, c->width, c->height); } #endif } else { /* Single Buffered */ if (c->rgb_flag) c->db_flag = 0; } #ifdef DDRAW if (DDInit(c,hWnd) == GL_FALSE) { free( (void *) c ); exit(1); } #endif c->gl_visual = _mesa_create_visual(rgb_flag, db_flag, /* db_flag */ GL_FALSE, /* stereo */ 8,8,8,8, /* r, g, b, a bits */ 0, /* index bits */ 16, /* depth_bits */ 8, /* stencil_bits */ 16,16,16,16,/* accum_bits */ 1); if (!c->gl_visual) { return NULL; } /* allocate a new Mesa context */ c->gl_ctx = _mesa_create_context( c->gl_visual, NULL, c, GL_TRUE); if (!c->gl_ctx) { _mesa_destroy_visual( c->gl_visual ); free(c); return NULL; } if (!_mesa_initialize_context(c->gl_ctx, c->gl_visual, (GLcontext *) NULL, (void *) c, GL_TRUE )) { _mesa_destroy_visual( c->gl_visual ); free(c); return NULL; } _mesa_enable_sw_extensions(c->gl_ctx); _mesa_enable_1_3_extensions(c->gl_ctx); c->gl_buffer = _mesa_create_framebuffer( c->gl_visual, c->gl_visual->depthBits > 0, c->gl_visual->stencilBits > 0, c->gl_visual->accumRedBits > 0, GL_FALSE /* s/w alpha */ ); if (!c->gl_buffer) { _mesa_destroy_visual( c->gl_visual ); _mesa_free_context_data( c->gl_ctx ); free(c); return NULL; } /* Initialize the software rasterizer and helper modules. */ { GLcontext *ctx = c->gl_ctx; _swrast_CreateContext( ctx ); _ac_CreateContext( ctx ); _tnl_CreateContext( ctx ); _swsetup_CreateContext( ctx ); #ifdef SET_FPOINTERS_ONCE SetFunctionPointers(ctx); #endif // SET_FPOINTERS_ONCE _swsetup_Wakeup( ctx ); } #ifdef COMPILE_SETPIXEL ChooseSetPixel(c); #endif return c; } void WMesaDestroyContext( void ) { WMesaContext c = Current; ReleaseDC(c->Window,c->hDC); WC = c; if(c->hPalHalfTone != NULL) DeleteObject(c->hPalHalfTone); _swsetup_DestroyContext( c->gl_ctx ); _tnl_DestroyContext( c->gl_ctx ); _ac_DestroyContext( c->gl_ctx ); _swrast_DestroyContext( c->gl_ctx ); _mesa_destroy_visual( c->gl_visual ); _mesa_destroy_framebuffer( c->gl_buffer ); _mesa_free_context_data( c->gl_ctx ); if (c->db_flag) #ifdef DDRAW DDFree(c); #else wmDeleteBackingStore(c); #endif free( (void *) c ); #if !defined(NO_PARALLEL) if(parallelMachine) PRDestroyRenderBuffer(); #endif } void WMesaMakeCurrent( WMesaContext c ) { if(!c){ Current = c; return; } if(Current == c) return; wmesa_update_state(c->gl_ctx, 0); _mesa_make_current(c->gl_ctx, c->gl_buffer); Current = c; if (Current->gl_ctx->Viewport.Width==0) { /* initialize viewport to window size */ _mesa_Viewport( 0, 0, Current->width, Current->height ); Current->gl_ctx->Scissor.Width = Current->width; Current->gl_ctx->Scissor.Height = Current->height; } if ((c->cColorBits <= 8 ) && (c->rgb_flag == GL_TRUE)){ WMesaPaletteChange(c->hPalHalfTone); } } void WMesaSwapBuffers( void ) { HDC DC = Current->hDC; GET_CURRENT_CONTEXT(ctx); /* If we're swapping the buffer associated with the current context * we have to flush any pending rendering commands first. */ if (Current && Current->gl_ctx == ctx) _mesa_swapbuffers(ctx); if (Current->db_flag) wmFlush(Current); } void WMesaPaletteChange(HPALETTE Pal) { #ifndef DDRAW int vRet; #endif LPPALETTEENTRY pPal; if (Current && (Current->rgb_flag==GL_FALSE || Current->dither_flag == GL_TRUE)) { pPal = (PALETTEENTRY *)malloc( 256 * sizeof(PALETTEENTRY)); Current->hPal=Pal; GetPaletteEntries( Pal, 0, 256, pPal ); #ifdef DDRAW Current->lpDD->lpVtbl->CreatePalette(Current->lpDD,DDPCAPS_8BIT, pPal, &(Current->lpDDPal), NULL); if (Current->lpDDPal) Current->lpDDSPrimary->lpVtbl->SetPalette(Current->lpDDSPrimary, Current->lpDDPal); #else vRet = SetDIBColorTable(Current->dib.hDC, 0, 256, (RGBQUAD*)pPal); #endif free( pPal ); } } static unsigned char threeto8[8] = { 0, 0111>>1, 0222>>1, 0333>>1, 0444>>1, 0555>>1, 0666>>1, 0377 }; static unsigned char twoto8[4] = { 0, 0x55, 0xaa, 0xff }; static unsigned char oneto8[2] = { 0, 255 }; static unsigned char componentFromIndex(UCHAR i, UINT nbits, UINT shift) { unsigned char val; val = i >> shift; switch (nbits) { case 1: val &= 0x1; return oneto8[val]; case 2: val &= 0x3; return twoto8[val]; case 3: val &= 0x7; return threeto8[val]; default: return 0; } } void wmCreatePalette( PWMC pwdc ) { /* Create a compressed and re-expanded 3:3:2 palette */ int i; LOGPALETTE *pPal; BYTE rb, rs, gb, gs, bb, bs; pwdc->nColors = 0x100; pPal = (PLOGPALETTE)malloc(sizeof(LOGPALETTE) + pwdc->nColors * sizeof(PALETTEENTRY)); memset( pPal, 0, sizeof(LOGPALETTE) + pwdc->nColors * sizeof(PALETTEENTRY) ); pPal->palVersion = 0x300; rb = REDBITS; rs = REDSHIFT; gb = GREENBITS; gs = GREENSHIFT; bb = BLUEBITS; bs = BLUESHIFT; if (pwdc->db_flag) { /* Need to make two palettes: one for the screen DC and one for the DIB. */ pPal->palNumEntries = pwdc->nColors; for (i = 0; i < pwdc->nColors; i++) { pPal->palPalEntry[i].peRed = componentFromIndex( i, rb, rs ); pPal->palPalEntry[i].peGreen = componentFromIndex( i, gb, gs ); pPal->palPalEntry[i].peBlue = componentFromIndex( i, bb, bs ); pPal->palPalEntry[i].peFlags = 0; } pwdc->hGLPalette = CreatePalette( pPal ); pwdc->hPalette = CreatePalette( pPal ); } else { pPal->palNumEntries = pwdc->nColors; for (i = 0; i < pwdc->nColors; i++) { pPal->palPalEntry[i].peRed = componentFromIndex( i, rb, rs ); pPal->palPalEntry[i].peGreen = componentFromIndex( i, gb, gs ); pPal->palPalEntry[i].peBlue = componentFromIndex( i, bb, bs ); pPal->palPalEntry[i].peFlags = 0; } pwdc->hGLPalette = CreatePalette( pPal ); } free(pPal); } void #ifdef COMPILE_SETPIXEL wmSetPixelDefault(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { if (Current->db_flag) { #ifdef DDRAW HDC hdc = NULL; Current->lpDDSOffScreen->lpVtbl->Unlock(Current->lpDDSOffScreen,NULL); Current->lpDDSOffScreen->lpVtbl->GetDC(Current->lpDDSOffScreen,&hdc); SetPixelV(hdc,iPixel, iScanLine, RGB(r,g,b)); Current->lpDDSOffScreen->lpVtbl->ReleaseDC(Current->lpDDSOffScreen,hdc); while (Current->lpDDSOffScreen->lpVtbl->Lock(Current->lpDDSOffScreen,NULL, &(Current->ddsd), 0, NULL) == DDERR_WASSTILLDRAWING); #else SetPixelV(Current->hDC, iPixel, iScanLine, RGB(r,g,b)); #endif } else { SetPixelV(Current->hDC, iPixel+pwc->rectSurface.left, pwc->rectSurface.top+iScanLine, RGB(r,g,b)); } } #else wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { if (Current->db_flag) { LPBYTE lpb = pwc->pbPixels; UINT nBypp = pwc->cColorBits >> 3; lpb += pwc->ScanWidth * iScanLine; lpb += iPixel * nBypp; if(nBypp == 1) { if(pwc->dither_flag) *lpb = DITHER_RGB_2_8BIT(r,g,b,iScanLine,iPixel); else *lpb = BGR8(r,g,b); } else if(nBypp == 2) *((LPWORD)lpb) = BGR16(r,g,b); else if (nBypp == 3) *((LPDWORD)lpb) = BGR24(r,g,b); else if (nBypp == 4) *((LPDWORD)lpb) = BGR32(r,g,b); } else { SetPixel(Current->hDC, iPixel, iScanLine, RGB(r,g,b)); } } #endif #ifdef COMPILE_SETPIXEL void wmSetPixel4(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { LPDWORD lpdw = ((LPDWORD)(pwc->pbPixels + pwc->ScanWidth * iScanLine)) + iPixel; *lpdw = BGR32(r,g,b); // LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel + iPixel + iPixel + iPixel; // *((LPDWORD)lpb) = BGR32(r,g,b); } void wmSetPixel3(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel + iPixel + iPixel; *((LPDWORD)lpb) = BGR24(r,g,b); } void wmSetPixel2(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { LPWORD lpw = ((LPWORD)(pwc->pbPixels + pwc->ScanWidth * iScanLine)) + iPixel; *lpw = BGR16(r,g,b); // LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel + iPixel; // *((LPWORD)lpb) = BGR16(r,g,b); } void wmSetPixel1(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel; *lpb = BGR8(r,g,b); } void wmSetPixel1Dither(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { LPBYTE lpb = pwc->pbPixels + pwc->ScanWidth * iScanLine + iPixel; *lpb = DITHER_RGB_2_8BIT(r,g,b,iScanLine,iPixel); } void ChooseSetPixel(PWMC pwc) { UINT nBypp = (pwc ) ? pwc->cColorBits >> 3 : 0; switch(nBypp) { case 1: pwc->wmSetPixel = pwc->dither_flag ? &wmSetPixel1Dither : &wmSetPixel1; break; case 2: pwc->wmSetPixel = &wmSetPixel2; break; case 3: pwc->wmSetPixel = &wmSetPixel3; break; case 4: pwc->wmSetPixel = &wmSetPixel4; break; default: pwc->wmSetPixel = &wmSetPixelDefault; break; } } #endif void wmCreateDIBSection( HDC hDC, PWMC pwc, // handle of device context CONST BITMAPINFO *pbmi, // bitmap size, format, and color data UINT iUsage // color data type indicator: RGB values or palette indices ) { DWORD dwSize = 0; DWORD dwScanWidth; UINT nBypp = pwc->cColorBits / 8; HDC hic; dwScanWidth = (((pwc->ScanWidth * nBypp)+ 3) & ~3); pwc->ScanWidth =pwc->pitch = dwScanWidth; if (stereo_flag) pwc->ScanWidth = 2* pwc->pitch; dwSize = sizeof(BITMAPINFO) + (dwScanWidth * pwc->height); #ifdef USE_MAPPED_FILE pwc->dib.hFileMap = CreateFileMapping((HANDLE)PAGE_FILE, NULL, PAGE_READWRITE | SEC_COMMIT, 0, dwSize, NULL); if (!pwc->dib.hFileMap) return; pwc->dib.base = MapViewOfFile(pwc->dib.hFileMap, FILE_MAP_ALL_ACCESS, 0, 0, 0); if(!pwc->dib.base){ CloseHandle(pwc->dib.hFileMap); return; } CopyMemory(pwc->dib.base, pbmi, sizeof(BITMAPINFO)); #endif // USE_MAPPED_FILE hic = CreateIC("display", NULL, NULL, NULL); pwc->dib.hDC = CreateCompatibleDC(hic); #ifdef USE_MAPPED_FILE pwc->hbmDIB = CreateDIBSection(hic, &(pwc->bmi), (iUsage ? DIB_PAL_COLORS : DIB_RGB_COLORS), &(pwc->pbPixels), pwc->dib.hFileMap, 0); #else pwc->hbmDIB = CreateDIBSection(hic, &(pwc->bmi), (iUsage ? DIB_PAL_COLORS : DIB_RGB_COLORS), &(pwc->pbPixels), 0, 0); #endif // USE_MAPPED_FILE pwc->ScreenMem = pwc->addrOffScreen = pwc->pbPixels; pwc->hOldBitmap = SelectObject(pwc->dib.hDC, pwc->hbmDIB); DeleteDC(hic); return; } /* * Blit memory DC to screen DC */ BOOL wmFlush(PWMC pwc) { BOOL bRet = 0; DWORD dwErr = 0; #ifdef DDRAW HRESULT ddrval; #endif if(pwc->db_flag){ #ifdef DDRAW if (pwc->lpDDSOffScreen == NULL) if(DDCreateOffScreen(pwc) == GL_FALSE) return FALSE; pwc->lpDDSOffScreen->lpVtbl->Unlock(pwc->lpDDSOffScreen, NULL); while( 1 ) { ddrval = pwc->lpDDSPrimary->lpVtbl->Blt( pwc->lpDDSPrimary, &(pwc->rectSurface), pwc->lpDDSOffScreen, &(pwc->rectOffScreen), 0, NULL ); if( ddrval == DD_OK ) { break; } if( ddrval == DDERR_SURFACELOST ) { if(!DDRestoreAll(pwc)) { break; } } if( ddrval != DDERR_WASSTILLDRAWING ) { break; } } while (pwc->lpDDSOffScreen->lpVtbl->Lock(pwc->lpDDSOffScreen, NULL, &(pwc->ddsd), 0, NULL) == DDERR_WASSTILLDRAWING) ; if(ddrval != DD_OK) dwErr = GetLastError(); #else bRet = BitBlt(pwc->hDC, 0, 0, pwc->width, pwc->height, pwc->dib.hDC, 0, 0, SRCCOPY); #endif } return(TRUE); } /* The following code is added by Li Wei to enable stereo display */ #if !defined(NO_STEREO) static void __gluMakeIdentityf(GLfloat m[16]) { m[0+4*0] = 1; m[0+4*1] = 0; m[0+4*2] = 0; m[0+4*3] = 0; m[1+4*0] = 0; m[1+4*1] = 1; m[1+4*2] = 0; m[1+4*3] = 0; m[2+4*0] = 0; m[2+4*1] = 0; m[2+4*2] = 1; m[2+4*3] = 0; m[3+4*0] = 0; m[3+4*1] = 0; m[3+4*2] = 0; m[3+4*3] = 1; } static void normalize(float v[3]) { float r; r = sqrt( v[0]*v[0] + v[1]*v[1] + v[2]*v[2] ); if (r == 0.0) return; v[0] /= r; v[1] /= r; v[2] /= r; } static void cross(float v1[3], float v2[3], float result[3]) { result[0] = v1[1]*v2[2] - v1[2]*v2[1]; result[1] = v1[2]*v2[0] - v1[0]*v2[2]; result[2] = v1[0]*v2[1] - v1[1]*v2[0]; } static void __gluLookAt(GLdouble eyex, GLdouble eyey, GLdouble eyez, GLdouble centerx, GLdouble centery, GLdouble centerz, GLdouble upx, GLdouble upy, GLdouble upz) { int i; float forward[3], side[3], up[3]; GLfloat m[4][4]; forward[0] = centerx - eyex; forward[1] = centery - eyey; forward[2] = centerz - eyez; up[0] = upx; up[1] = upy; up[2] = upz; normalize(forward); /* Side = forward x up */ cross(forward, up, side); normalize(side); /* Recompute up as: up = side x forward */ cross(side, forward, up); __gluMakeIdentityf(&m[0][0]); m[0][0] = side[0]; m[1][0] = side[1]; m[2][0] = side[2]; m[0][1] = up[0]; m[1][1] = up[1]; m[2][1] = up[2]; m[0][2] = -forward[0]; m[1][2] = -forward[1]; m[2][2] = -forward[2]; glMultMatrixf(&m[0][0]); glTranslated(-eyex, -eyey, -eyez); } GLfloat viewDistance = 1.0; void WMesaShowStereo(GLuint list) { GLbitfield mask = GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT; GLfloat cm[16]; GLint matrix_mode; /* Must use double Buffer */ if( ! Current-> db_flag ) return; glGetIntegerv(GL_MATRIX_MODE,&matrix_mode); WMesaViewport(Current->gl_ctx,0,Current->height/2, Current->width,Current->height/2); if(matrix_mode!=GL_MODELVIEW) glMatrixMode(GL_MODELVIEW); glGetFloatv(GL_MODELVIEW_MATRIX,cm); glLoadIdentity(); __gluLookAt(viewDistance/2,0.0,0.0 , viewDistance/2,0.0,-1.0, 0.0,1.0,0.0 ); glMultMatrixf( cm ); Current->ScreenMem = Current->pbPixels = Current->addrOffScreen; glCallList( list ); glGetFloatv(GL_MODELVIEW_MATRIX,cm); glLoadIdentity(); __gluLookAt(-viewDistance/2,0.0,0.0 , -viewDistance/2,0.0,-1.0, 0.0,1.0,0.0 ); glMultMatrixf(cm); Current->ScreenMem = Current->pbPixels = Current->addrOffScreen + Current->pitch; glCallList(list); if(matrix_mode!=GL_MODELVIEW) glMatrixMode(matrix_mode); glFlush(); WMesaViewport(Current->gl_ctx,0,0,Current->width,Current->height); WMesaSwapBuffers(); } void toggleStereoMode() { if(!Current->db_flag) return; if(!stereo_flag){ stereo_flag = 1; if(stereoBuffer==GL_FALSE) #if !defined(NO_PARALLEL) if(!parallelFlag) #endif { Current->ScanWidth = Current->pitch*2; } } else { stereo_flag = 0; #if !defined(NO_PARALLEL) if(!parallelFlag) #endif Current->ScanWidth = Current->pitch; Current->pbPixels = Current->addrOffScreen; } } /* if in stereo mode, the following function is called */ void glShowStereo(GLuint list) { WMesaShowStereo(list); } #endif /* NO_STEREO */ #if !defined(NO_PARALLEL) void toggleParallelMode(void) { if(!parallelFlag){ parallelFlag = GL_TRUE; if(parallelMachine==GL_FALSE){ PRCreateRenderBuffer( Current->rgb_flag? GL_RGBA :GL_COLOR_INDEX, Current->cColorBits/8, Current->width ,Current->height, Current->ScanWidth, Current->rgb_flag? Current->pbPixels: Current->ScreenMem); parallelMachine = GL_TRUE; } } else { parallelFlag = GL_FALSE; if(parallelMachine==GL_TRUE){ PRDestroyRenderBuffer(); parallelMachine=GL_FALSE; ReadyForNextFrame = GL_TRUE; } /*********************************************** * Seems something wrong!!!! ************************************************/ WMesaMakeCurrent(Current); #if !defined(NO_STEREO) stereo_flag = GL_FALSE ; #endif } } void PRShowRenderResult(void) { int flag = 0; if(!glImageRendered()) return; if (parallelFlag) { WMesaSwapBuffers(); } } #endif /* NO_PARALLEL */ BYTE DITHER_RGB_2_8BIT( int red, int green, int blue, int pixel, int scanline) { char unsigned redtemp, greentemp, bluetemp, paletteindex; //*** now, look up each value in the halftone matrix //*** using an 8x8 ordered dither. redtemp = aDividedBy51[red] + (aModulo51[red] > aHalftone8x8[(pixel%8)*8 + scanline%8]); greentemp = aDividedBy51[(char unsigned)green] + (aModulo51[green] > aHalftone8x8[ (pixel%8)*8 + scanline%8]); bluetemp = aDividedBy51[(char unsigned)blue] + (aModulo51[blue] > aHalftone8x8[ (pixel%8)*8 +scanline%8]); //*** recombine the halftoned rgb values into a palette index paletteindex = redtemp + aTimes6[greentemp] + aTimes36[bluetemp]; //*** and translate through the wing halftone palette //*** translation vector to give the correct value. return aWinGHalftoneTranslation[paletteindex]; } #ifdef DDRAW /* * restoreAll * * restore all lost objects */ HRESULT DDRestoreAll( WMesaContext wc ) { HRESULT ddrval; ddrval = wc->lpDDSPrimary->lpVtbl->Restore(wc->lpDDSPrimary); if( ddrval == DD_OK ) { ddrval = wc->lpDDSOffScreen->lpVtbl->Restore(wc->lpDDSOffScreen); } return ddrval; } /* restoreAll */ /* * This function is called if the initialization function fails */ BOOL initFail( HWND hwnd, WMesaContext wc ) { DDFree(wc); MessageBox( hwnd, "DirectDraw Init FAILED", "", MB_OK ); return FALSE; } /* initFail */ static void DDDeleteOffScreen(WMesaContext wc) { if( wc->lpDDSOffScreen != NULL ) { wc->lpDDSOffScreen->lpVtbl->Unlock(wc->lpDDSOffScreen,NULL); wc->lpDDSOffScreen->lpVtbl->Release(wc->lpDDSOffScreen); wc->lpDDSOffScreen = NULL; } } static void DDFreePrimarySurface(WMesaContext wc) { if( wc->lpDDSPrimary != NULL ) { if(wc->db_flag == GL_FALSE) wc->lpDDSPrimary->lpVtbl->ReleaseDC(wc->lpDDSPrimary, wc->hDC); wc->lpDDSPrimary->lpVtbl->Release(wc->lpDDSPrimary); wc->lpDDSPrimary = NULL; } } static BOOL DDCreatePrimarySurface(WMesaContext wc) { HRESULT ddrval; // DDSCAPS ddscaps; wc->ddsd.dwSize = sizeof( wc->ddsd ); wc->ddsd.dwFlags = DDSD_CAPS; wc->ddsd.ddsCaps.dwCaps = DDSCAPS_PRIMARYSURFACE; ddrval = wc->lpDD->lpVtbl->CreateSurface( wc->lpDD,&(wc->ddsd), &(wc->lpDDSPrimary), NULL ); if( ddrval != DD_OK ) { return initFail(wc->hwnd , wc); } if(wc->db_flag == GL_FALSE) wc->lpDDSPrimary->lpVtbl->GetDC(wc->lpDDSPrimary, &(wc->hDC)); return TRUE; } static BOOL DDCreateOffScreen(WMesaContext wc) { POINT pt; HRESULT ddrval; if(wc->lpDD == NULL) return FALSE; GetClientRect( wc->hwnd, &(wc->rectOffScreen) ); wc->ddsd.dwFlags = DDSD_CAPS | DDSD_HEIGHT | DDSD_WIDTH; wc->ddsd.ddsCaps.dwCaps = DDSCAPS_OFFSCREENPLAIN; wc->ddsd.dwHeight = wc->rectOffScreen.bottom - wc->rectOffScreen.top; wc->ddsd.dwWidth = wc->rectOffScreen.right - wc->rectOffScreen.left; ddrval = wc->lpDD->lpVtbl->CreateSurface( wc->lpDD, &(wc->ddsd), &(wc->lpDDSOffScreen), NULL ); if( ddrval != DD_OK ) { return FALSE; } while (wc->lpDDSOffScreen->lpVtbl->Lock(wc->lpDDSOffScreen,NULL, &(wc->ddsd), 0, NULL) == DDERR_WASSTILLDRAWING) ; if(wc->ddsd.lpSurface==NULL) return initFail(wc->hwnd, wc); wc->ScreenMem = wc->pbPixels = wc->addrOffScreen = (PBYTE)(wc->ddsd.lpSurface); wc->ScanWidth = wc->pitch = wc->ddsd.lPitch; if (stereo_flag) wc->ScanWidth = wc->ddsd.lPitch*2; GetClientRect( wc->hwnd, &(wc->rectSurface) ); pt.x = pt.y = 0; ClientToScreen( wc->hwnd, &pt ); OffsetRect(&(wc->rectSurface), pt.x, pt.y); wmSetPixelFormat(wc, wc->hDC); return TRUE; } typedef struct tagWMesaContextList { WMesaContext wc; struct tagWMesaContextList *next; }WMesaContextList; WMesaContextList *head = 0; void AddContext(WMesaContext wc) { WMesaContextList *lst = (WMesaContextList *)malloc(sizeof(WMesaContextList)); lst->wc = wc; if( head ) lst->next = head; head = lst; } WMesaContext FindContext(HWND hWnd) { WMesaContextList *tmp = head; while(tmp) { if( tmp->wc->hwnd == hWnd ) return tmp->wc; tmp = tmp->next; } return NULL; } void RemoveContext(HWND hWnd) { WMesaContextList *tmp = head; if(tmp ) { if( tmp->wc->hwnd == hWnd ) { WMesaContextList *lst = tmp; head = tmp->next; free((void *)lst); } else while(tmp->next) { if( tmp->next->wc->hwnd == hWnd ) { WMesaContextList *lst = tmp->next; tmp->next = tmp->next->next; free((void *)lst); } tmp = tmp->next; } } } static LRESULT CALLBACK MyWndProc(HWND hwnd,UINT message,WPARAM wParam, LPARAM lParam) { WMesaContext wc = Current->hwnd == hwnd ? Current : FindContext(hwnd); if( wc ) { LRESULT lret = CallWindowProc((WNDPROC)(wc->oldWndProc),hwnd,message,wParam,lParam); if( message = WM_MOVE ) { POINT pt = {0}; GetClientRect( wc->hwnd, &(wc->rectSurface) ); ClientToScreen( hwnd, &pt ); OffsetRect(&(wc->rectSurface), pt.x, pt.y); } return lret; } return 0L; } /* * doInit - do work required for every instance of the application: * create the window, initialize data */ static BOOL DDInit( WMesaContext wc, HWND hwnd) { HRESULT ddrval; // DWORD dwFrequency; // LPDIRECTDRAW lpDD; // DirectDraw object // LPDIRECTDRAW2 lpDD2; LPDIRECTDRAWCLIPPER pcClipper = NULL; wc->fullScreen = displayOptions.fullScreen; wc->gMode = displayOptions.mode; wc->hwnd = hwnd; stereo_flag = displayOptions.stereo; if(wc->db_flag!= GL_TRUE) stereo_flag = GL_FALSE; /* * create the main DirectDraw object */ ddrval = DirectDrawCreate( NULL, &(wc->lpDD), NULL ); if( ddrval != DD_OK ) { return initFail(hwnd,wc); } // Get exclusive mode if requested if(wc->fullScreen) { ddrval = wc->lpDD->lpVtbl->SetCooperativeLevel( wc->lpDD, hwnd, DDSCL_EXCLUSIVE | DDSCL_FULLSCREEN ); } else { ddrval = wc->lpDD->lpVtbl->SetCooperativeLevel( wc->lpDD, hwnd, DDSCL_NORMAL ); } if( ddrval != DD_OK ) { return initFail(hwnd , wc); } if(ddrval != DD_OK) return initFail(hwnd , wc); switch( wc->gMode ) { case 1: ddrval = wc->lpDD->lpVtbl->SetDisplayMode( wc->lpDD, 640, 480, displayOptions.bpp); break; case 2: ddrval = wc->lpDD->lpVtbl->SetDisplayMode( wc->lpDD, 800, 600, displayOptions.bpp); break; case 3: ddrval = wc->lpDD->lpVtbl->SetDisplayMode( wc->lpDD, 1024, 768, displayOptions.bpp); break; case 4: ddrval = wc->lpDD->lpVtbl->SetDisplayMode( wc->lpDD, 1152, 864, displayOptions.bpp); break; case 5: ddrval = wc->lpDD->lpVtbl->SetDisplayMode( wc->lpDD, 1280, 1024, displayOptions.bpp); break; } if( ddrval != DD_OK ) { printf("Can't modify display mode, current mode used\n"); } switch(ddrval){ case DDERR_INVALIDOBJECT: break; case DDERR_INVALIDPARAMS: break; case DDERR_UNSUPPORTEDMODE: ; } if(DDCreatePrimarySurface(wc) == GL_FALSE) return initFail(hwnd, wc); if(wc->db_flag) DDCreateOffScreen(wc); if( FAILED( ddrval = wc->lpDD->lpVtbl->CreateClipper(wc->lpDD, 0, &pcClipper, NULL ) ) ) return E_FAIL; if( FAILED( ddrval = pcClipper->lpVtbl->SetHWnd(pcClipper, 0, wc->hwnd ) ) ) { pcClipper->lpVtbl->Release(pcClipper); return E_FAIL; } if( FAILED( ddrval = wc->lpDDSPrimary->lpVtbl->SetClipper(wc->lpDDSPrimary, pcClipper ) ) ) { pcClipper->lpVtbl->Release(pcClipper); return E_FAIL; } // Done with clipper pcClipper->lpVtbl->Release(pcClipper); AddContext(wc); // Hook the window so we can update the drawing rectangle when the window moves wc->oldWndProc = SetWindowLong(wc->hwnd,GWL_WNDPROC,(LONG)MyWndProc); return TRUE; } /* DDInit */ static void DDFree( WMesaContext wc) { RemoveContext(wc->hwnd); SetWindowLong(wc->hwnd,GWL_WNDPROC,(LONG)(wc->oldWndProc)); wc->oldWndProc = 0; if( wc->lpDD != NULL ) { DDFreePrimarySurface(wc); DDDeleteOffScreen(wc); wc->lpDD->lpVtbl->Release(wc->lpDD); wc->lpDD = NULL; } // Clean up the screen on exit RedrawWindow( NULL, NULL, NULL, RDW_INVALIDATE | RDW_ERASE | RDW_ALLCHILDREN ); } #endif void WMesaMove(void) { WMesaContext wc = Current; POINT pt; if (Current != NULL){ GetClientRect( wc->hwnd, &(wc->rectSurface) ); pt.x = pt.y = 0; ClientToScreen( wc->hwnd, &pt ); OffsetRect(&(wc->rectSurface), pt.x, pt.y); } } /************************************************ * Mesa 4.0 - These triangle rasterizers are not * implemented in this version of the Windows * driver. They could be implemented for a * potential performance improvement. * See OSMesa for an example of the approach * to use. * This old code is left in this file in case * it is useful. However, it may end up looking * a lot more like the OSMesa code. ************************************************/ #if defined(FAST_RASTERIZERS) /* * Like PACK_8A8B8G8R() but don't use alpha. This is usually an acceptable * shortcut. */ #define PACK_8B8G8R( R, G, B ) ( ((B) << 16) | ((G) << 8) | (R) ) /**********************************************************************/ /*** Triangle rendering ***/ /**********************************************************************/ /* * XImage, smooth, depth-buffered, PF_8A8B8G8R triangle. */ static void smooth_8A8B8G8R_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv ) { WMesaContext wmesa = (WMesaContext) ctx->DriverCtx; #define INTERP_Z 1 #define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR2(X,Y) #define PIXEL_TYPE GLushort //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_8B8G8R( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_8R8G8B( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR2(X,Y) #define PIXEL_TYPE GLushort //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_5R6G5B( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR2(X,Y) #define PIXEL_TYPE GLushort //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_8B8G8R( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define PIXEL_ADDRESS(X,Y) PIXELADDR4(X,Y) #define PIXEL_TYPE GLuint //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_8R8G8B( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define PIXEL_ADDRESS(X,Y) PIXELADDR2(X,Y) #define PIXEL_TYPE GLushort //#define BYTES_PER_ROW (wmesa->xm_buffer->backimage->bytes_per_line) #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ unsigned long p = PACK_5R6G5B( VB->ColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define INTERP_Z 1 #define INTERP_INDEX 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ GLuint index = VB->IndexPtr->data[pv]; \ (*ctx->Driver.Index)( ctx, index ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, len = RIGHT-LEFT; \ for (i=0;iDriverCtx; #define INTERP_Z 1 #define INTERP_INDEX 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define SETUP_CODE \ GLuint index = VB->IndexPtr->data[pv]; \ (*ctx->Driver.Index)( ctx, index ); #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx; \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxDriverCtx; DITHER_RGB_TO_8BIT_SETUP #define INTERP_Z 1 #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, xx = LEFT, yy = FLIP(Y), len = RIGHT-LEFT; \ for (i=0;iDriverCtx; DITHER_RGB_TO_8BIT_SETUP #define INTERP_Z 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint i, xx = LEFT, yy = FLIP(Y), len = RIGHT-LEFT; \ for (i=0;iColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2], xx, yy); \ pRow[i] = pixelDithered; \ zRow[i] = z; \ } \ ffz += fdzdx; \ } \ } #ifdef __MINGW32__ #include "tritemp.h" #else #ifdef WIN32 // #include "..\tritemp.h" #else #include "tritemp.h" #endif #endif } /* * XImage, smooth, NON-depth-buffered, 8-bit PF_DITHER triangle. */ static void smooth_DITHER8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv ) { WMesaContext wmesa = (WMesaContext) ctx->DriverCtx; DITHER_RGB_TO_8BIT_SETUP #define INTERP_RGB 1 #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx, yy = FLIP(Y); \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2], xx, yy);\ *pixel = pixelDithered; \ ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ } \ } #ifdef __MINGW32__ #include "tritemp.h" #else #ifdef WIN32 // #include "..\tritemp.h" #else #include "tritemp.h" #endif #endif } /* * XImage, flat, NON-depth-buffered, 8-bit PF_DITHER triangle. */ static void flat_DITHER8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, GLuint v2, GLuint pv ) { WMesaContext wmesa = (WMesaContext) ctx->DriverCtx; DITHER_RGB_TO_8BIT_SETUP #define PIXEL_ADDRESS(X,Y) PIXELADDR1(X,Y) #define PIXEL_TYPE GLubyte #define BYTES_PER_ROW (wmesa->ScanWidth) #define INNER_LOOP( LEFT, RIGHT, Y ) \ { \ GLint xx, yy = FLIP(Y); \ PIXEL_TYPE *pixel = pRow; \ for (xx=LEFT;xxColorPtr->data[pv][0], \ VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2], xx, yy); \ *pixel = pixelDithered; \ } \ } #ifdef __MINGW32__ #include "tritemp.h" #else #ifdef WIN32 // #include "..\tritemp.h" #else #include "tritemp.h" #endif #endif } #endif /************** END DEAD TRIANGLE CODE ***********************/ static triangle_func choose_triangle_function( GLcontext *ctx ) { #if 0 WMesaContext wmesa = (WMesaContext) ctx->DriverCtx; int depth = wmesa->cColorBits; if (ctx->Polygon.SmoothFlag) return NULL; if (ctx->Texture._ReallyEnabled) return NULL; if (!wmesa->db_flag) return NULL; /*if (wmesa->xm_buffer->buffer==XIMAGE)*/ { if ( ctx->Light.ShadeModel==GL_SMOOTH && ctx->_RasterMask==DEPTH_BIT && ctx->Depth.Func==GL_LESS && ctx->Depth.Mask==GL_TRUE && ctx->Polygon.StippleFlag==GL_FALSE) { switch (wmesa->pixelformat) { case PF_8A8B8G8R: return smooth_8A8B8G8R_z_triangle; case PF_8R8G8B: return smooth_8R8G8B_z_triangle; case PF_5R6G5B: return smooth_5R6G5B_z_triangle; case PF_DITHER8: return smooth_DITHER8_z_triangle; case PF_INDEX8: return smooth_ci_z_triangle; default: return NULL; } } if ( ctx->Light.ShadeModel==GL_FLAT && ctx->_RasterMask==DEPTH_BIT && ctx->Depth.Func==GL_LESS && ctx->Depth.Mask==GL_TRUE && ctx->Polygon.StippleFlag==GL_FALSE) { switch (wmesa->pixelformat) { case PF_8A8B8G8R: return flat_8A8B8G8R_z_triangle; case PF_8R8G8B: return flat_8R8G8B_z_triangle; case PF_5R6G5B: return flat_5R6G5B_z_triangle; case PF_DITHER8: return flat_DITHER8_z_triangle; case PF_INDEX8: return flat_ci_z_triangle; default: return NULL; } } if ( ctx->_RasterMask==0 /* no depth test */ && ctx->Light.ShadeModel==GL_SMOOTH && ctx->Polygon.StippleFlag==GL_FALSE) { switch (wmesa->pixelformat) { case PF_8A8B8G8R: return smooth_8A8B8G8R_triangle; case PF_8R8G8B: return smooth_8R8G8B_triangle; case PF_5R6G5B: return smooth_5R6G5B_triangle; case PF_DITHER8: return smooth_DITHER8_triangle; case PF_INDEX8: return smooth_ci_triangle; default: return NULL; } } if ( ctx->_RasterMask==0 /* no depth test */ && ctx->Light.ShadeModel==GL_FLAT && ctx->Polygon.StippleFlag==GL_FALSE) { switch (wmesa->pixelformat) { case PF_8A8B8G8R: return flat_8A8B8G8R_triangle; case PF_8R8G8B: return flat_8R8G8B_triangle; case PF_5R6G5B: return flat_5R6G5B_triangle; case PF_DITHER8: return flat_DITHER8_triangle; case PF_INDEX8: return flat_ci_triangle; default: return NULL; } } return NULL; } #endif } /* * Define a new viewport and reallocate auxillary buffers if the size of * the window (color buffer) has changed. */ void WMesaViewport( GLcontext *ctx, GLint x, GLint y, GLsizei width, GLsizei height ) { assert(0); /* I don't think that this is being used. */ #if 0 /* Save viewport */ ctx->Viewport.X = x; ctx->Viewport.Width = width; ctx->Viewport.Y = y; ctx->Viewport.Height = height; /* compute scale and bias values */ /* Pre-Keith 3.1 changes ctx->Viewport.Map.m[Sx] = (GLfloat) width / 2.0F; ctx->Viewport.Map.m[Tx] = ctx->Viewport.Sx + x; ctx->Viewport.Map.m[Sy] = (GLfloat) height / 2.0F; ctx->Viewport.Map.m[Ty] = ctx->Viewport.Sy + y; */ ctx->Viewport.WindowMap.m[MAT_SX] = (GLfloat) width / 2.0F; ctx->Viewport.WindowMap.m[MAT_TX] = ctx->Viewport.WindowMap.m[MAT_SX] + x; ctx->Viewport.WindowMap.m[MAT_SY] = (GLfloat) height / 2.0F; ctx->Viewport.WindowMap.m[MAT_TY] = ctx->Viewport.WindowMap.m[MAT_SY] + y; #endif }