/* * File name : wmesa.c * Version : 2.3 * * Display driver for Mesa 2.3 under * Windows95 and WindowsNT * * 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). */ /* * $Log: wmesaOld.c,v $ * Revision 1.2 2000/11/05 18:41:00 keithw * - Changes for new software rasterizer modules * - Remove support for choosing software fallbacks from core code * - Remove partial fallback code from vbrender.c -- drivers are now * expected to be able to find a triangle/quad function for every state, * even if they have to use _swsetup_Triangle or _swsetup_Quad. * - Marked derived variables in the GLcontext struct with a leading * underscore '_'. * * Revision 1.1.1.1 1999/08/19 00:55:42 jtg * Imported sources * * Revision 1.2 1999/01/03 03:08:57 brianp * Ted Jump's changes * * Revision 1.0 1997/06/14 17:51:00 CST by Li Wei(liwei@aiar.xjtu.edu.cn) * New display driver for Mesa 2.x using Microsoft Direct Draw * Initial vision */ #define WMESA_STEREO_C #include #include #include #include #include "wmesadef.h" #include "context.h" #include "dd.h" #include "xform.h" #include "vb.h" #include "matrix.h" #include "depth.h" #ifdef PROFILE // #include "profile.h" #endif #ifdef DITHER #include #endif #ifdef __CYGWIN32__ #include "macros.h" #include #define CopyMemory memcpy #endif #include "mesa_extend.h" #include "colors.h" #if !defined(NO_STEREO) #include "gl\glu.h" #include "stereo.h" #endif #if !defined(NO_PARALLEL) // #include "parallel.h" #endif struct DISPLAY_OPTIONS displayOptions; 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 ; /* end of added code*/ static PWMC Current = NULL; WMesaContext WC = NULL; #ifdef NDEBUG #define assert(ignore) ((void) 0) #else void Mesa_Assert(void *Cond,void *File,unsigned Line) { char Msg[512]; sprintf(Msg,"%s %s %d",Cond,File,Line); MessageBox(NULL,Msg,"Assertion failed.",MB_OK); exit(1); } #define assert(e) if (!e) Mesa_Assert(#e,__FILE__,__LINE__); #endif //#define DD_GETDC (Current->hDC ) #define DD_GETDC ((Current->db_flag) ? Current->dib.hDC : Current->hDC ) //#define DD_GETDC ((Current->db_flag) ? Current->hDCPrimary : Current->hDCBack ) #define DD_RELEASEDC //#define BEGINGDICALL if(Current->rgb_flag)wmFlushBits(Current); #define BEGINGDICALL //#define ENDGDICALL if(Current->rgb_flag)wmGetBits(Current); #define ENDGDICALL //#define FLIP(Y) (Current->dither_flag? Y : Current->height-(Y)-1) //#define FLIP(Y) (Current->height-(Y)-1) //#define FLIP(Y) Y #define FLIP(Y) (Current->db_flag? Y: Current->height-(Y)-1) #define STARTPROFILE #define ENDPROFILE(PARA) #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); #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); void wmCreateDIBSection( HDC hDC, PWMC pwc, // handle of device context CONST BITMAPINFO *pbmi, // address of structure containing 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 triangle_func choose_triangle_function( GLcontext *ctx ); 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 /*WINAPI*/ 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); UnmapViewOfFile(pwc->dib.base); CloseHandle(pwc->dib.hFileMap); return TRUE; } // // This function creates the DIB section that is used for combined // GL and GDI calls // BOOL /*WINAPI*/ 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); } // // This function copies one scan line in a DIB section to another // BOOL GLWINAPI 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); } BOOL wmFlush(PWMC pwc); /* * Useful macros: Modified from file osmesa.c */ #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) 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 */ } // // We cache all gl draw routines until a flush is made // static void flush(GLcontext* ctx) { STARTPROFILE if((Current->rgb_flag /*&& !(Current->dib.fFlushed)*/&&!(Current->db_flag)) ||(!Current->rgb_flag)) { wmFlush(Current); } ENDPROFILE(flush) } /* * Set the color index used to clear the color buffer. */ static void clear_index(GLcontext* ctx, GLuint index) { STARTPROFILE Current->clearpixel = index; ENDPROFILE(clear_index) } /* * Set the color used to clear the color buffer. */ static void clear_color( GLcontext* ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a ) { STARTPROFILE Current->clearpixel=RGB(r, g, b ); ENDPROFILE(clear_color) } /* * Clear the specified region of the color buffer using the clear color * or index as specified by one of the two functions above. */ static void clear(GLcontext* ctx, GLboolean all,GLint x, GLint y, GLint width, GLint height ) { DWORD dwColor; WORD wColor; BYTE bColor; LPDWORD lpdw = (LPDWORD)Current->pbPixels; LPWORD lpw = (LPWORD)Current->pbPixels; LPBYTE lpb = Current->pbPixels; int lines; STARTPROFILE if (all){ x=y=0; width=Current->width; height=Current->height; } if(Current->db_flag==GL_TRUE){ UINT nBypp = Current->cColorBits / 8; int i = 0; int iSize; if(nBypp ==1 ){ /* Need rectification */ 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)); } 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; do{ lpb += Current->ScanWidth; memcpy(lpb, Current->pbPixels, iSize*4); i++; } while(iclearpixel); HBRUSH Brush=CreateSolidBrush(Current->clearpixel); HPEN Old_Pen=SelectObject(DC,Pen); HBRUSH 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); DD_RELEASEDC; } ENDPROFILE(clear) } /* Set the current color index. */ static void set_index(GLcontext* ctx, GLuint index) { STARTPROFILE Current->pixel=index; ENDPROFILE(set_index) } /* Set the current RGBA color. */ static void set_color( GLcontext* ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a ) { STARTPROFILE Current->pixel = RGB( r, g, b ); ENDPROFILE(set_color) } /* Set the index mode bitplane mask. */ static GLboolean index_mask(GLcontext* ctx, GLuint mask) { /* can't implement */ return GL_FALSE; } /* Set the RGBA drawing mask. */ static GLboolean color_mask( GLcontext* ctx, GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask) { /* can't implement */ return GL_FALSE; } /* * Set the pixel logic operation. Return GL_TRUE if the device driver * can perform the operation, otherwise return GL_FALSE. If GL_FALSE * is returned, the logic op will be done in software by Mesa. */ GLboolean logicop( GLcontext* ctx, GLenum op ) { /* can't implement */ return GL_FALSE; } static void dither( GLcontext* ctx, GLboolean enable ) { 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_buffer( GLcontext* ctx, GLenum mode ) { STARTPROFILE /* TODO: this could be better */ if (mode==GL_FRONT || mode==GL_BACK) { return GL_TRUE; } else { return GL_FALSE; } ENDPROFILE(set_buffer) } /* Return characteristics of the output buffer. */ static void buffer_size( GLcontext* ctx, GLuint *width, GLuint *height /*, GLuint *depth */) { int New_Size; RECT CR; STARTPROFILE GetClientRect(Current->Window,&CR); *width=CR.right; *height=CR.bottom; // *depth = Current->depth; 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 } ENDPROFILE(buffer_size) } /**********************************************************************/ /***** Accelerated point, line, polygon rendering *****/ /**********************************************************************/ static void fast_rgb_points( GLcontext* ctx, GLuint first, GLuint last ) { GLuint i; // HDC DC=DD_GETDC; PWMC pwc = Current; STARTPROFILE if (Current->gl_ctx->VB->MonoColor) { /* all drawn with current color */ for (i=first;i<=last;i++) { if (!Current->gl_ctx->VB->ClipMask[i]) { int x, y; x = (GLint) Current->gl_ctx->VB->Win[i][0]; y = FLIP( (GLint) Current->gl_ctx->VB->Win[i][1] ); wmSetPixel(pwc, y,x,GetRValue(Current->pixel), GetGValue(Current->pixel), GetBValue(Current->pixel)); } } } else { /* draw points of different colors */ for (i=first;i<=last;i++) { if (!Current->gl_ctx->VB->ClipMask[i]) { int x, y; unsigned long pixel=RGB(Current->gl_ctx->VB->Color[i][0]*255.0, Current->gl_ctx->VB->Color[i][1]*255.0, Current->gl_ctx->VB->Color[i][2]*255.0); x = (GLint) Current->gl_ctx->VB->Win[i][0]; y = FLIP( (GLint) Current->gl_ctx->VB->Win[i][1] ); wmSetPixel(pwc, y,x,Current->gl_ctx->VB->Color[i][0]*255.0, Current->gl_ctx->VB->Color[i][1]*255.0, Current->gl_ctx->VB->Color[i][2]*255.0); } } } // DD_RELEASEDC; ENDPROFILE(fast_rgb_points) } /* Return pointer to accerated points function */ extern points_func choose_points_function( GLcontext* ctx ) { STARTPROFILE if (ctx->Point.Size==1.0 && !ctx->Point.SmoothFlag && ctx->_RasterMask==0 && !ctx->Texture.Enabled && ctx->Visual->RGBAflag) { ENDPROFILE(choose_points_function) return fast_rgb_points; } else { ENDPROFILE(choose_points_function) return NULL; } } /* Draw a line using the color specified by Current->gl_ctx->VB->Color[pv] */ static void fast_flat_rgb_line( GLcontext* ctx, GLuint v0, GLuint v1, GLuint pv ) { STARTPROFILE int x0, y0, x1, y1; unsigned long pixel; HDC DC=DD_GETDC; HPEN Pen; HPEN Old_Pen; if (Current->gl_ctx->VB->MonoColor) { pixel = Current->pixel; /* use current color */ } else { pixel = RGB(Current->gl_ctx->VB->Color[pv][0]*255.0, Current->gl_ctx->VB->Color[pv][1]*255.0, Current->gl_ctx->VB->Color[pv][2]*255.0); } x0 = (int) Current->gl_ctx->VB->Win[v0][0]; y0 = FLIP( (int) Current->gl_ctx->VB->Win[v0][1] ); x1 = (int) Current->gl_ctx->VB->Win[v1][0]; y1 = FLIP( (int) Current->gl_ctx->VB->Win[v1][1] ); BEGINGDICALL Pen=CreatePen(PS_SOLID,1,pixel); Old_Pen=SelectObject(DC,Pen); MoveToEx(DC,x0,y0,NULL); LineTo(DC,x1,y1); SelectObject(DC,Old_Pen); DeleteObject(Pen); DD_RELEASEDC; ENDGDICALL ENDPROFILE(fast_flat_rgb_line) } /* Return pointer to accerated line function */ static line_func choose_line_function( GLcontext* ctx ) { STARTPROFILE if (ctx->Line.Width==1.0 && !ctx->Line.SmoothFlag && !ctx->Line.StippleFlag && ctx->Light.ShadeModel==GL_FLAT && ctx->_RasterMask==0 && !ctx->Texture.Enabled && Current->rgb_flag) { ENDPROFILE(choose_line_function) return fast_flat_rgb_line; } else { ENDPROFILE(choose_line_function) return NULL; } } /**********************************************************************/ /***** Span-based pixel drawing *****/ /**********************************************************************/ /* Write a horizontal span of color-index pixels with a boolean mask. */ static void write_index_span( GLcontext* ctx, GLuint n, GLint x, GLint y, const GLuint index[], const GLubyte mask[] ) { STARTPROFILE 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; ipixel; ENDPROFILE(write_monoindex_span) } /* To improve the performance of this routine, frob the data into an actual scanline and call bitblt on the complete scan line instead of SetPixel. */ /* Write a horizontal span of color pixels with a boolean mask. */ static void write_color_span( GLcontext* ctx, GLuint n, GLint x, GLint y, const GLubyte red[], const GLubyte green[], const GLubyte blue[], const GLubyte alpha[], const GLubyte mask[] ) { STARTPROFILE 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(red[i],green[i],blue[i])); } else { for (i=0; ihPal,RGB(red[i],green[i],blue[i])); } } ENDPROFILE(write_color_span) } /* * Write a horizontal span of pixels with a boolean mask. The current color * is used for all pixels. */ static void write_monocolor_span( GLcontext* ctx, GLuint n, GLint x, GLint y, const GLubyte mask[]) { STARTPROFILE GLuint i; HDC DC=DD_GETDC; PWMC pwc = Current; assert(Current->rgb_flag==GL_TRUE); y=FLIP(y); if(Current->rgb_flag==GL_TRUE){ for (i=0; ipixel), GetGValue(Current->pixel), GetBValue(Current->pixel)); } else { for (i=0; ipixel); } DD_RELEASEDC; ENDPROFILE(write_monocolor_span) } /**********************************************************************/ /***** Array-based pixel drawing *****/ /**********************************************************************/ /* Write an array of pixels with a boolean mask. */ static void write_index_pixels( GLcontext* ctx, GLuint n, const GLint x[], const GLint y[], const GLuint index[], const GLubyte mask[] ) { STARTPROFILE GLuint i; assert(Current->rgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]; *Mem = index[i]; } } ENDPROFILE(write_index_pixels) } /* * Write an array of pixels with a boolean mask. The current color * index is used for all pixels. */ static void write_monoindex_pixels( GLcontext* ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte mask[] ) { STARTPROFILE GLuint i; assert(Current->rgb_flag==GL_FALSE); for (i=0; iScreenMem+FLIP(y[i])*Current->ScanWidth+x[i]; *Mem = Current->pixel; } } ENDPROFILE(write_monoindex_pixels) } /* Write an array of pixels with a boolean mask. */ static void write_color_pixels( GLcontext* ctx, GLuint n, const GLint x[], const GLint y[], const GLubyte r[], const GLubyte g[], const GLubyte b[], const GLubyte a[], const GLubyte mask[] ) { STARTPROFILE 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; ipixel), GetGValue(Current->pixel), GetBValue(Current->pixel)); DD_RELEASEDC; ENDPROFILE(write_monocolor_pixels) } /**********************************************************************/ /***** Read spans/arrays of pixels *****/ /**********************************************************************/ /* Read a horizontal span of color-index pixels. */ static void read_index_span( GLcontext* ctx, GLuint n, GLint x, GLint y, GLuint index[]) { STARTPROFILE GLuint i; BYTE *Mem=Current->ScreenMem+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]); } } ENDPROFILE(read_index_pixels) } /* Read a horizontal span of color pixels. */ static void read_color_span( GLcontext* ctx, GLuint n, GLint x, GLint y, GLubyte red[], GLubyte green[], GLubyte blue[], GLubyte alpha[] ) { STARTPROFILE UINT i; COLORREF Color; HDC DC=DD_GETDC; assert(Current->rgb_flag==GL_TRUE); y=FLIP(y); for (i=0; irgb_flag==GL_TRUE); for (i=0; iDriver.UpdateState = setup_DD_pointers; ctx->Driver.GetBufferSize = buffer_size; ctx->Driver.Finish = finish; ctx->Driver.Flush = flush; ctx->Driver.ClearIndex = clear_index; ctx->Driver.ClearColor = clear_color; ctx->Driver.Clear = clear; ctx->Driver.Index = set_index; ctx->Driver.Color = set_color; ctx->Driver.IndexMask = index_mask; ctx->Driver.ColorMask = color_mask; ctx->Driver.LogicOp = logicop; ctx->Driver.Dither = dither; ctx->Driver.SetBuffer = set_buffer; ctx->Driver.GetBufferSize = buffer_size; ctx->Driver.PointsFunc = choose_points_function(ctx); ctx->Driver.LineFunc = choose_line_function(ctx); ctx->Driver.TriangleFunc = choose_triangle_function( ctx ); /* Pixel/span writing functions: */ ctx->Driver.WriteColorSpan = write_color_span; ctx->Driver.WriteMonocolorSpan = write_monocolor_span; ctx->Driver.WriteColorPixels = write_color_pixels; ctx->Driver.WriteMonocolorPixels = write_monocolor_pixels; ctx->Driver.WriteIndexSpan = write_index_span; ctx->Driver.WriteMonoindexSpan = write_monoindex_span; ctx->Driver.WriteIndexPixels = write_index_pixels; ctx->Driver.WriteMonoindexPixels = write_monoindex_pixels; /* Pixel/span reading functions: */ ctx->Driver.ReadIndexSpan = read_index_span; ctx->Driver.ReadColorSpan = read_color_span; ctx->Driver.ReadIndexPixels = read_index_pixels; ctx->Driver.ReadColorPixels = read_color_pixels; } /**********************************************************************/ /***** WMesa API Functions *****/ /**********************************************************************/ #define PAL_SIZE 256 static void GetPalette(HPALETTE Pal,RGBQUAD *aRGB) { STARTPROFILE 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; c->hPalHalfTone = WinGCreateHalftonePalette(); } else c->dither_flag = GL_FALSE; #else c->dither_flag = GL_FALSE; #endif if (rgb_flag==GL_FALSE) { c->rgb_flag = GL_FALSE; // c->pixel = 1; 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"); } else { c->rgb_flag = GL_TRUE; // c->pixel = 0; } GetClientRect(c->Window,&CR); c->width=CR.right; c->height=CR.bottom; if (db_flag) { c->db_flag = 1; /* Double buffered */ #ifndef DDRAW // if (c->rgb_flag==GL_TRUE && c->dither_flag != GL_TRUE ) { 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 = gl_create_visual(rgb_flag, GL_FALSE, /* software alpha */ db_flag, /* db_flag */ 16, /* depth_bits */ 8, /* stencil_bits */ 8, /* accum_bits */ 8, 255.0, 255.0, 255.0, 255.0, 8,8,8,8 ); if (!c->gl_visual) { return NULL; } /* allocate a new Mesa context */ c->gl_ctx = gl_create_context( c->gl_visual, NULL,c); if (!c->gl_ctx) { gl_destroy_visual( c->gl_visual ); free(c); return NULL; } c->gl_buffer = gl_create_framebuffer( c->gl_visual ); if (!c->gl_buffer) { gl_destroy_visual( c->gl_visual ); gl_destroy_context( c->gl_ctx ); free(c); return NULL; } // setup_DD_pointers(c->gl_ctx); return c; } void WMesaDestroyContext( void ) { WMesaContext c = Current; ReleaseDC(c->Window,c->hDC); WC = c; if(c->hPalHalfTone != NULL) DeleteObject(c->hPalHalfTone); gl_destroy_visual( c->gl_visual ); gl_destroy_framebuffer( c->gl_buffer ); gl_destroy_context( c->gl_ctx ); if (c->db_flag) #ifdef DDRAW DDFree(c); #else wmDeleteBackingStore(c); #endif free( (void *) c ); //Following code is added to enable parallel render // Parallel render only work in double buffer mode #if !defined(NO_PARALLEL) if(parallelMachine) PRDestroyRenderBuffer(); #endif // End modification } void /*APIENTRY*/ WMesaMakeCurrent( WMesaContext c ) { if(!c){ Current = c; return; } // // A little optimization // If it already is current, // don't set it again // if(Current == c) return; //gl_set_context( c->gl_ctx ); gl_make_current(c->gl_ctx, c->gl_buffer); Current = c; setup_DD_pointers(c->gl_ctx); if (Current->gl_ctx->Viewport.Width==0) { /* initialize viewport to window size */ gl_Viewport( Current->gl_ctx, 0, 0, Current->width, Current->height ); } if ((c->cColorBits <= 8 ) && (c->rgb_flag == GL_TRUE)){ WMesaPaletteChange(c->hPalHalfTone); } } void /*APIENTRY*/ WMesaSwapBuffers( void ) { HDC DC = Current->hDC; if (Current->db_flag) wmFlush(Current); } void /*APIENTRY*/ WMesaPaletteChange(HPALETTE Pal) { int vRet; 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 ); GetPalette( Pal, 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,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 /*WINAPI*/ 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 /*WINAPI*/ wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) { if(Current->db_flag){ LPBYTE lpb = pwc->pbPixels; LPDWORD lpdw; LPWORD lpw; UINT nBypp = pwc->cColorBits / 8; UINT nOffset = iPixel % nBypp; // Move the pixel buffer pointer to the scanline that we // want to access // pwc->dib.fFlushed = FALSE; lpb += pwc->ScanWidth * iScanLine; // Now move to the desired pixel lpb += iPixel * nBypp; lpb = PIXELADDR(iPixel, iScanLine); lpdw = (LPDWORD)lpb; lpw = (LPWORD)lpb; 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) *lpw = BGR16(r,g,b); else if (nBypp == 3){ *lpdw = BGR24(r,g,b); } else if (nBypp == 4) *lpdw = BGR32(r,g,b); } else{ HDC DC = DD_GETDC; SetPixel(DC, iPixel, iScanLine, RGB(r,g,b)); DD_RELEASEDC; } } void /*WINAPI*/ wmCreateDIBSection( HDC hDC, PWMC pwc, // handle of device context CONST BITMAPINFO *pbmi, // address of structure containing 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); 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; } // pwc->pbPixels = pwc->addrOffScreen = ((LPBYTE)pwc->dib.base) + sizeof(BITMAPINFO); // pwc->dib.hDC = CreateCompatibleDC(hDC); CopyMemory(pwc->dib.base, pbmi, sizeof(BITMAPINFO)); hic = CreateIC("display", NULL, NULL, NULL); pwc->dib.hDC = CreateCompatibleDC(hic); /* pwc->hbmDIB = CreateDIBitmap(hic, &(pwc->bmi.bmiHeader), CBM_INIT, pwc->pbPixels, &(pwc->bmi), DIB_RGB_COLORS); */ pwc->hbmDIB = CreateDIBSection(hic, &(pwc->bmi), (iUsage ? DIB_PAL_COLORS : DIB_RGB_COLORS), &(pwc->pbPixels), pwc->dib.hFileMap, 0); /* pwc->hbmDIB = CreateDIBSection(hic, &(pwc->bmi), DIB_RGB_COLORS, &(pwc->pbPixels), pwc->dib.hFileMap, 0); */ pwc->ScreenMem = pwc->addrOffScreen = pwc->pbPixels; pwc->hOldBitmap = SelectObject(pwc->dib.hDC, pwc->hbmDIB); DeleteDC(hic); return; } // // Blit memory DC to screen DC // BOOL /*WINAPI*/ wmFlush(PWMC pwc) { BOOL bRet = 0; DWORD dwErr = 0; HRESULT ddrval; // Now search through the torus frames and mark used colors if(pwc->db_flag){ #ifdef DDRAW if (pwc->lpDDSOffScreen == NULL) if(DDCreateOffScreen(pwc) == GL_FALSE) return; 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) 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); // glPushMatrix(); //**** WMesaViewport(Current->gl_ctx,0,Current->height/2,Current->width,Current->height/2); // Current->gl_ctx->NewState = 0; // glViewport(0,0,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 ); // glTranslatef(viewDistance/2.0,0.,0.); glMultMatrixf( cm ); Current->ScreenMem = Current->pbPixels = Current->addrOffScreen; //glPushMatrix(); glCallList( list ); //glPopMatrix(); 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 ); // glTranslatef(-viewDistance/2.0,0.,0.); glMultMatrixf(cm); Current->ScreenMem = Current->pbPixels = Current->addrOffScreen + Current->pitch; glCallList(list); if(matrix_mode!=GL_MODELVIEW) glMatrixMode(matrix_mode); // glPopMatrix(); glFlush(); WMesaViewport(Current->gl_ctx,0,0,Current->width,Current->height); // Current->gl_ctx->NewState = 0; 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 // End if NO_STEREO not defined #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 //End if NO_PARALLEL not defined //end modification 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) ; // while ((ddrval = wc->lpDDSOffScreen->lpVtbl->Lock(wc->lpDDSOffScreen,NULL, &(wc->ddsd), DDLOCK_SURFACEMEMORYPTR , NULL)) != DD_OK) ; 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; } /* * 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; 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); } /* ddrval = wc->lpDD->lpVtbl->QueryInterface(wc->lpDD, IID_IDirectDraw2, (LPVOID *)((wc->lpDD2))); */ if(ddrval != DD_OK) return initFail(hwnd , wc); //ddrval = wc->lpDD->lpVtbl->GetDisplayMode( wc->lpDD, &(wc->ddsd)); // wc->lpDD2->lpVtbl->GetMonitorFrequency(wc->lpDD, &dwFrequency); 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"); // return initFail(hwnd , wc); } //ddrval = wc->lpDD->lpVtbl->GetDisplayMode( wc->lpDD, &(wc->ddsd)); 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) return DDCreateOffScreen(wc); } /* DDInit */ static void DDFree( WMesaContext wc) { 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); } } /* * 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 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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Color[pv][0], \ VB->Color[pv][1], VB->Color[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->Index[pv]; \ if (!VB->MonoColor) { \ /* set the color index */ \ (*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->Index[pv]; \ if (!VB->MonoColor) { \ /* set the color index */ \ (*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;iColor[pv][0], \ VB->Color[pv][1], VB->Color[pv][2], xx, yy); \ pRow[i] = pixelDithered; \ zRow[i] = z; \ } \ ffz += fdzdx; \ } \ } #include "tritemp.h" } /* * 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;xxColor[pv][0], VB->Color[pv][1], VB->Color[pv][2], xx, yy);\ *pixel = pixelDithered; \ ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ } \ } #include "tritemp.h" } /* * 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;xxColor[pv][0], \ VB->Color[pv][1], VB->Color[pv][2], xx, yy); \ *pixel = pixelDithered; \ } \ } #include "tritemp.h" } static triangle_func choose_triangle_function( GLcontext *ctx ) { WMesaContext wmesa = (WMesaContext) ctx->DriverCtx; int depth = wmesa->cColorBits; if (ctx->Polygon.SmoothFlag) return NULL; if (ctx->Texture.Enabled) 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; } } /* * 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 ) { /* Save viewport */ ctx->Viewport.X = x; ctx->Viewport.Width = width; ctx->Viewport.Y = y; ctx->Viewport.Height = height; /* compute scale and bias values */ ctx->Viewport.Sx = (GLfloat) width / 2.0F; ctx->Viewport.Tx = ctx->Viewport.Sx + x; ctx->Viewport.Sy = (GLfloat) height / 2.0F; ctx->Viewport.Ty = ctx->Viewport.Sy + y; }