diff options
Diffstat (limited to 'src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c')
| -rw-r--r-- | src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c | 1719 |
1 files changed, 0 insertions, 1719 deletions
diff --git a/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c b/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c deleted file mode 100644 index 0f11b4fe513..00000000000 --- a/src/mesa/drivers/windows/gldirect/mesasw/gld_wgl_mesasw.c +++ /dev/null @@ -1,1719 +0,0 @@ -/**************************************************************************** -* -* Mesa 3-D graphics library -* Direct3D Driver Interface -* -* ======================================================================== -* -* Copyright (C) 1991-2004 SciTech Software, Inc. All rights reserved. -* -* Permission is hereby granted, free of charge, to any person obtaining a -* copy of this software and associated documentation files (the "Software"), -* to deal in the Software without restriction, including without limitation -* the rights to use, copy, modify, merge, publish, distribute, sublicense, -* and/or sell copies of the Software, and to permit persons to whom the -* Software is furnished to do so, subject to the following conditions: -* -* The above copyright notice and this permission notice shall be included -* in all copies or substantial portions of the Software. -* -* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS -* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, -* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL -* SCITECH SOFTWARE INC BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, -* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF -* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE -* SOFTWARE. -* -* ====================================================================== -* -* Language: ANSI C -* Environment: Windows 9x/2000/XP/XBox (Win32) -* -* Description: Mesa Software WGL (WindowsGL) -* -****************************************************************************/ - -#include <windows.h> -#define GL_GLEXT_PROTOTYPES -#include <GL/gl.h> -#include <GL/glext.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 "teximage.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" - -#include "dglcontext.h" -#include "gld_driver.h" - -//--------------------------------------------------------------------------- -//--------------------------------------------------------------------------- - -DGL_pixelFormat pfTemplateMesaSW = -{ - { - sizeof(PIXELFORMATDESCRIPTOR), // Size of the data structure - 1, // Structure version - should be 1 - // Flags: - PFD_DRAW_TO_WINDOW | // The buffer can draw to a window or device surface. - PFD_DRAW_TO_BITMAP | // The buffer can draw to a bitmap. (DaveM) - PFD_SUPPORT_GDI | // The buffer supports GDI drawing. (DaveM) - PFD_SUPPORT_OPENGL | // The buffer supports OpenGL drawing. - PFD_DOUBLEBUFFER | // The buffer is double-buffered. - 0, // Placeholder for easy commenting of above flags - PFD_TYPE_RGBA, // Pixel type RGBA. - 32, // Total colour bitplanes (excluding alpha bitplanes) - 8, 0, // Red bits, shift - 8, 8, // Green bits, shift - 8, 16, // Blue bits, shift - 8, 24, // Alpha bits, shift (destination alpha) - 64, // Accumulator bits (total) - 16, 16, 16, 16, // Accumulator bits: Red, Green, Blue, Alpha - 16, // Depth bits - 8, // Stencil bits - 0, // Number of auxiliary buffers - 0, // Layer type - 0, // Specifies the number of overlay and underlay planes. - 0, // Layer mask - 0, // Specifies the transparent color or index of an underlay plane. - 0 // Damage mask - }, - 0, // Unused -}; - -//--------------------------------------------------------------------------- -// Extensions -//--------------------------------------------------------------------------- - -typedef struct { - PROC proc; - char *name; -} GLD_extension; - -static GLD_extension GLD_extList[] = { -#ifdef GL_EXT_polygon_offset - { (PROC)glPolygonOffsetEXT, "glPolygonOffsetEXT" }, -#endif - { (PROC)glBlendEquationEXT, "glBlendEquationEXT" }, - { (PROC)glBlendColorEXT, "glBlendColorExt" }, - { (PROC)glVertexPointerEXT, "glVertexPointerEXT" }, - { (PROC)glNormalPointerEXT, "glNormalPointerEXT" }, - { (PROC)glColorPointerEXT, "glColorPointerEXT" }, - { (PROC)glIndexPointerEXT, "glIndexPointerEXT" }, - { (PROC)glTexCoordPointerEXT, "glTexCoordPointer" }, - { (PROC)glEdgeFlagPointerEXT, "glEdgeFlagPointerEXT" }, - { (PROC)glGetPointervEXT, "glGetPointervEXT" }, - { (PROC)glArrayElementEXT, "glArrayElementEXT" }, - { (PROC)glDrawArraysEXT, "glDrawArrayEXT" }, - { (PROC)glAreTexturesResidentEXT, "glAreTexturesResidentEXT" }, - { (PROC)glBindTextureEXT, "glBindTextureEXT" }, - { (PROC)glDeleteTexturesEXT, "glDeleteTexturesEXT" }, - { (PROC)glGenTexturesEXT, "glGenTexturesEXT" }, - { (PROC)glIsTextureEXT, "glIsTextureEXT" }, - { (PROC)glPrioritizeTexturesEXT, "glPrioritizeTexturesEXT" }, - { (PROC)glCopyTexSubImage3DEXT, "glCopyTexSubImage3DEXT" }, - { (PROC)glTexImage3DEXT, "glTexImage3DEXT" }, - { (PROC)glTexSubImage3DEXT, "glTexSubImage3DEXT" }, - { (PROC)glPointParameterfEXT, "glPointParameterfEXT" }, - { (PROC)glPointParameterfvEXT, "glPointParameterfvEXT" }, - { (PROC)glLockArraysEXT, "glLockArraysEXT" }, - { (PROC)glUnlockArraysEXT, "glUnlockArraysEXT" }, - { NULL, "\0" } -}; - -//--------------------------------------------------------------------------- -// WMesa Internal Functions -//--------------------------------------------------------------------------- - -#define PAGE_FILE 0xffffffff - -#define REDBITS 0x03 -#define REDSHIFT 0x00 -#define GREENBITS 0x03 -#define GREENSHIFT 0x03 -#define BLUEBITS 0x02 -#define BLUESHIFT 0x06 - -typedef struct _dibSection { - HDC hDC; - HANDLE hFileMap; - BOOL fFlushed; - LPVOID base; -} WMDIBSECTION, *PWMDIBSECTION; - -typedef struct wmesa_context { - HWND Window; - HDC hDC; - HPALETTE hPalette; - HPALETTE hOldPalette; - HPEN hPen; - HPEN hOldPen; - HCURSOR hOldCursor; - COLORREF crColor; - // 3D projection stuff - RECT drawRect; - UINT uiDIBoffset; - // OpenGL stuff - HPALETTE hGLPalette; - GLuint width; - GLuint height; - GLuint ScanWidth; - GLboolean db_flag; //* double buffered? - GLboolean rgb_flag; //* RGB mode? - GLboolean dither_flag; //* use dither when 256 color mode for RGB? - GLuint depth; //* bits per pixel (1, 8, 24, etc) - ULONG pixel; // current color index or RGBA pixel value - ULONG clearpixel; //* pixel for clearing the color buffers - PBYTE ScreenMem; // WinG memory - BITMAPINFO *IndexFormat; - HPALETTE hPal; // Current Palette - HPALETTE hPalHalfTone; - - - WMDIBSECTION dib; - BITMAPINFO bmi; - HBITMAP hbmDIB; - HBITMAP hOldBitmap; - HBITMAP Old_Compat_BM; - HBITMAP Compat_BM; // Bitmap for double buffering - PBYTE pbPixels; - int nColors; - BYTE cColorBits; - int pixelformat; - - RECT rectOffScreen; - RECT rectSurface; -// HWND hwnd; - DWORD pitch; - PBYTE addrOffScreen; - - // We always double-buffer, for performance reasons, but - // we need to know which of SwapBuffers() or glFlush() to - // handle. If we're emulating, then we update on Flush(), - // otherwise we update on SwapBufers(). KeithH - BOOL bEmulateSingleBuffer; -} WMesaContext, *PWMC; - -#define GLD_GET_WMESA_DRIVER(c) (WMesaContext*)(c)->glPriv - -// TODO: -GLint stereo_flag = 0 ; - -/* 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) - -struct DISPLAY_OPTIONS { - int stereo; - int fullScreen; - int mode; - int bpp; -}; - -struct DISPLAY_OPTIONS displayOptions; - -//--------------------------------------------------------------------------- - -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 -}; - -//--------------------------------------------------------------------------- - -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]; -} - -//--------------------------------------------------------------------------- - -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 wmSetPixel(PWMC pwc, int iScanLine, int iPixel, BYTE r, BYTE g, BYTE b) -{ - WMesaContext *Current = pwc; - - // Test for invalid scanline parameter. KeithH - if ((iScanLine < 0) || (iScanLine >= pwc->height)) - return; - - if (Current->db_flag) { - LPBYTE lpb = pwc->pbPixels; - UINT nBypp = pwc->cColorBits >> 3; - UINT nOffset = iPixel % nBypp; - - 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)); - } -} - -//--------------------------------------------------------------------------- - -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); - - 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)); - - hic = CreateIC("display", NULL, NULL, NULL); - pwc->dib.hDC = CreateCompatibleDC(hic); - - - pwc->hbmDIB = CreateDIBSection(hic, - &(pwc->bmi), - (iUsage ? DIB_PAL_COLORS : 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; - -} - -//--------------------------------------------------------------------------- - -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); - -} - -//--------------------------------------------------------------------------- - -/* 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; -} - -//--------------------------------------------------------------------------- - -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 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; - pwc->width = lxSize; - pwc->height = lySize; - - wmCreateDIBSection(hdc, pwc, pbmi, iUsage); - - if ((iUsage == DIB_PAL_COLORS) && !(pwc->hGLPalette)) { - wmCreatePalette( pwc ); - wmSetDibColors( pwc ); - } - wmSetPixelFormat(pwc, pwc->hDC); - return TRUE; -} - -//--------------------------------------------------------------------------- - -/* - * 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; -} - -//--------------------------------------------------------------------------- - -/* - * Blit memory DC to screen DC - */ -BOOL wmFlush(PWMC pwc, HDC hDC) -{ - BOOL bRet = 0; - DWORD dwErr = 0; - -// Now using bEmulateSingleBuffer in the calling function. KeithH - -// if(pwc->db_flag){ - bRet = BitBlt(hDC, 0, 0, pwc->width, pwc->height, - pwc->dib.hDC, 0, 0, SRCCOPY); -// } - - return bRet; - -} - -//--------------------------------------------------------------------------- -// Support Functions -//--------------------------------------------------------------------------- - -static void flush(GLcontext* ctx) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); -/* - if((Current->rgb_flag &&!(Current->db_flag)) - ||(!Current->rgb_flag)) - { - wmFlush(Current, Current->hDC); - } -*/ - // Only flush if we're not in double-buffer mode. KeithH - // The demo fractal.c calls glutSwapBuffers() then glFlush()! - if (Current->bEmulateSingleBuffer) { - wmFlush(Current, Current->hDC); - } -} - - -//--------------------------------------------------------------------------- - - -/* - * Set the color index used to clear the color buffer. - */ -static void clear_index(GLcontext* ctx, GLuint index) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - Current->clearpixel = index; -} - - - -//--------------------------------------------------------------------------- - -/* - * Set the color used to clear the color buffer. - */ -//static void clear_color( GLcontext* ctx, const GLchan color[4] ) -// Changed for Mesa 5.x. KeithH -static void clear_color( - GLcontext* ctx, - const GLfloat color[4]) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLubyte col[4]; - CLAMPED_FLOAT_TO_UBYTE(col[0], color[0]); - CLAMPED_FLOAT_TO_UBYTE(col[1], color[1]); - CLAMPED_FLOAT_TO_UBYTE(col[2], color[2]); - Current->clearpixel = RGB(col[0], col[1], col[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) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - DWORD dwColor; - WORD wColor; - BYTE bColor; - LPDWORD lpdw = (LPDWORD)Current->pbPixels; - LPWORD lpw = (LPWORD)Current->pbPixels; - LPBYTE lpb = Current->pbPixels; - int lines; - 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); - - /* clear alpha */ - if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_RIGHT_BIT)) && - ctx->DrawBuffer->UseSoftwareAlphaBuffers && - ctx->Color.ColorMask[ACOMP]) { - _swrast_clear_alpha_buffers( ctx ); - } - - if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) { - if (mask & DD_BACK_LEFT_BIT) { - /* 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 (i<lines-1); - mask &= ~DD_BACK_LEFT_BIT; - } /* double-buffer */ - - if (mask & DD_FRONT_LEFT_BIT) { - /* 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,y,x+width,y+height); - 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 ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - - 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 ) -// Altered for Mesa 5.x. KeithH -static void buffer_size( - GLframebuffer *buffer, - GLuint *width, - GLuint *height) -{ - // For some reason the context is not passed into this function. - // Therefore we have to explicitly retrieve it. - GET_CURRENT_CONTEXT(ctx); - - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - 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){ - if (Current->rgb_flag==GL_TRUE && Current->dither_flag!=GL_TRUE){ - wmDeleteBackingStore(Current); - wmCreateBackingStore(Current, Current->width, Current->height); - } - } - - } -} - - - -/**********************************************************************/ -/***** 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 tnl_points_func choose_points_function( GLcontext* ctx ) -{ - return NULL; -} - -//--------------------------------------------------------------------------- - -static void fast_flat_rgb_line( GLcontext* ctx, GLuint v0, - GLuint v1, GLuint pv ) -{ -} - -//--------------------------------------------------------------------------- - -static tnl_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[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - PBYTE Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) - if (mask[i]) - Mem[i]=index[i]; -} - - -//--------------------------------------------------------------------------- - -/* Write a horizontal span of 8-bit color-index pixels with a boolean mask. */ -static void write_ci8_span( const GLcontext* ctx, - GLuint n, GLint x, GLint y, - const GLubyte index[], - const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - PBYTE Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) - if (mask[i]) - Mem[i]=index[i]; -} - - -//--------------------------------------------------------------------------- - - -/* - * Write a horizontal span of pixels with a boolean mask. The current - * color index is used for all pixels. - */ -static void write_mono_ci_span(const GLcontext* ctx, - GLuint n,GLint x,GLint y, - GLuint colorIndex, const GLubyte mask[]) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - BYTE *Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) - if (mask[i]) - Mem[i]=colorIndex; -} - -//--------------------------------------------------------------------------- - -/* - * 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 RGBA color pixels with a boolean mask. */ -static void write_rgba_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, - const GLubyte rgba[][4], const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - PWMC pwc = Current; - - if (pwc->rgb_flag==GL_TRUE) - { - GLuint i; - HDC DC=DD_GETDC; - y=FLIP(y); - if (mask) { - for (i=0; i<n; i++) - if (mask[i]) - wmSetPixel(pwc, y, x + i, - rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); - } - else { - for (i=0; i<n; i++) - wmSetPixel(pwc, y, x + i, - rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); - } - DD_RELEASEDC; - } - else - { - GLuint i; - BYTE *Mem=Current->ScreenMem+y*Current->ScanWidth+x; - y = FLIP(y); - if (mask) { - for (i=0; i<n; i++) - if (mask[i]) - Mem[i] = GetNearestPaletteIndex(Current->hPal, - RGB(rgba[i][RCOMP], - rgba[i][GCOMP], - rgba[i][BCOMP])); - } - else { - for (i=0; i<n; i++) - Mem[i] = GetNearestPaletteIndex(Current->hPal, - 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[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - PWMC pwc = Current; - - if (pwc->rgb_flag==GL_TRUE) - { - GLuint i; - HDC DC=DD_GETDC; - y=FLIP(y); - if (mask) { - for (i=0; i<n; i++) - if (mask[i]) - wmSetPixel(pwc, y, x + i, - rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); - } - else { - for (i=0; i<n; i++) - wmSetPixel(pwc, y, x + i, - rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); - } - DD_RELEASEDC; - } - else - { - GLuint i; - BYTE *Mem=Current->ScreenMem+y*Current->ScanWidth+x; - y = FLIP(y); - if (mask) { - for (i=0; i<n; i++) - if (mask[i]) - Mem[i] = GetNearestPaletteIndex(Current->hPal, - RGB(rgb[i][RCOMP], - rgb[i][GCOMP], - rgb[i][BCOMP])); - } - else { - for (i=0; i<n; i++) - Mem[i] = GetNearestPaletteIndex(Current->hPal, - 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[]) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - ULONG pixel = RGB( color[RCOMP], color[GCOMP], color[BCOMP] ); - 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; i<n; i++) - if (mask[i]) - wmSetPixel(pwc,y,x+i,color[RCOMP], color[GCOMP], color[BCOMP]); - } - else { - for (i=0; i<n; i++) - if (mask[i]) - SetPixel(DC, y, x+i, pixel); - } - DD_RELEASEDC; -} - - - -/**********************************************************************/ -/***** Array-based pixel drawing *****/ -/**********************************************************************/ - - -/* Write an array of 32-bit index pixels with a boolean mask. */ -static void write_ci32_pixels( const GLcontext* ctx, - GLuint n, const GLint x[], const GLint y[], - const GLuint index[], const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) { - if (mask[i]) { - BYTE *Mem=Current->ScreenMem+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[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) { - if (mask[i]) { - BYTE *Mem=Current->ScreenMem+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[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - PWMC pwc = Current; - HDC DC=DD_GETDC; - assert(Current->rgb_flag==GL_TRUE); - for (i=0; i<n; i++) - if (mask[i]) - wmSetPixel(pwc, FLIP(y[i]), x[i], - rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); - DD_RELEASEDC; -} - - -//--------------------------------------------------------------------------- - - -/* - * Write an array of pixels with a boolean mask. The current color - * is used for all pixels. - */ -static void write_mono_rgba_pixels( const GLcontext* ctx, - GLuint n, - const GLint x[], const GLint y[], - const GLchan color[4], - const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - PWMC pwc = Current; - HDC DC=DD_GETDC; - assert(Current->rgb_flag==GL_TRUE); - for (i=0; i<n; i++) - if (mask[i]) - wmSetPixel(pwc, FLIP(y[i]),x[i],color[RCOMP], - color[GCOMP], color[BCOMP]); - DD_RELEASEDC; -} - -/**********************************************************************/ -/***** Read spans/arrays of pixels *****/ -/**********************************************************************/ - -/* Read a horizontal span of color-index pixels. */ -static void read_ci32_span( const GLcontext* ctx, GLuint n, GLint x, GLint y, - GLuint index[]) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - BYTE *Mem=Current->ScreenMem+FLIP(y)*Current->ScanWidth+x; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) - index[i]=Mem[i]; -} - -//--------------------------------------------------------------------------- - -/* Read an array of color index pixels. */ -static void read_ci32_pixels( const GLcontext* ctx, - GLuint n, const GLint x[], const GLint y[], - GLuint indx[], const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - assert(Current->rgb_flag==GL_FALSE); - for (i=0; i<n; i++) { - if (mask[i]) { - indx[i]=*(Current->ScreenMem+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] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - UINT i; - COLORREF Color; - HDC DC=DD_GETDC; - assert(Current->rgb_flag==GL_TRUE); - y = Current->height - y - 1; - for (i=0; i<n; i++) { - Color=GetPixel(DC,x+i,y); - rgba[i][RCOMP] = GetRValue(Color); - rgba[i][GCOMP] = GetGValue(Color); - rgba[i][BCOMP] = GetBValue(Color); - rgba[i][ACOMP] = 255; - } - DD_RELEASEDC; -} - -//--------------------------------------------------------------------------- - -/* Read an array of color pixels. */ -static void read_rgba_pixels( const GLcontext* ctx, - GLuint n, const GLint x[], const GLint y[], - GLubyte rgba[][4], const GLubyte mask[] ) -{ - GLD_context *gldCtx = GLD_GET_CONTEXT(ctx); - WMesaContext *Current = GLD_GET_WMESA_DRIVER(gldCtx); - GLuint i; - COLORREF Color; - HDC DC=DD_GETDC; - assert(Current->rgb_flag==GL_TRUE); - for (i=0; i<n; i++) { - if (mask[i]) { - GLint y2 = Current->height - 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 void wmesa_update_state( - GLcontext *ctx, - GLuint new_state) -{ - _swrast_InvalidateState( ctx, new_state ); - _swsetup_InvalidateState( ctx, new_state ); - _ac_InvalidateState( ctx, new_state ); - _tnl_InvalidateState( ctx, new_state ); -} - -//--------------------------------------------------------------------------- - -static void wmesa_viewport( - GLcontext *ctx, - GLint x, - GLint y, - GLsizei w, - GLsizei h) -{ -// ctx->Driver.ResizeBuffersMESA(ctx); -} - -//--------------------------------------------------------------------------- - -static void wmesa_update_state_first_time( - 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. - */ - // Good idea, so I'll do it. KeithH. :-) - - ctx->Driver.GetString = _gldGetStringGeneric; - ctx->Driver.UpdateState = wmesa_update_state; - ctx->Driver.DrawBuffer = set_draw_buffer; - ctx->Driver.ResizeBuffers = _swrast_alloc_buffers; - ctx->Driver.GetBufferSize = buffer_size; - - ctx->Driver.Viewport = wmesa_viewport; - - 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; - - // Does not apply for Mesa 5.x - //ctx->Driver.BaseCompressedTexFormat = _mesa_base_compressed_texformat; - //ctx->Driver.CompressedTextureSize = _mesa_compressed_texture_size; - //ctx->Driver.GetCompressedTexImage = _mesa_get_compressed_teximage; - - swdd->SetBuffer = 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; - - - tnl->Driver.RunPipeline = _tnl_run_pipeline; - - wmesa_update_state(ctx, new_state); -} - -//--------------------------------------------------------------------------- -// Driver interface functions -//--------------------------------------------------------------------------- - -BOOL gldCreateDrawable_MesaSW( - DGL_ctx *pCtx, - BOOL bPersistantInterface, - BOOL bPersistantBuffers) -{ - WMesaContext *c; - GLboolean true_color_flag; - GLboolean rgb_flag = GL_TRUE; - GLboolean db_flag = GL_TRUE; - - if (pCtx == NULL) - return FALSE; - - c = (struct wmesa_context * ) calloc(1,sizeof(struct wmesa_context)); - if (!c) - return FALSE; - - pCtx->glPriv = c; - - c->hDC = pCtx->hDC; - c->Window = pCtx->hWnd; - - true_color_flag = GetDeviceCaps(pCtx->hDC, BITSPIXEL) > 8; - - -#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; -#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; - } - -// db_flag = pCtx->lpPF->pfd.dwFlags & PFD_DOUBLEBUFFER ? GL_TRUE : GL_FALSE; - db_flag = GL_TRUE; // Force double-buffer - if (db_flag) { - c->db_flag = 1; - /* Double buffered */ - { - wmCreateBackingStore(c, pCtx->dwWidth, pCtx->dwHeight); - - } - } else { - /* Single Buffered */ - if (c->rgb_flag) - c->db_flag = 0; - } - - c->bEmulateSingleBuffer = (pCtx->lpPF->pfd.dwFlags & PFD_DOUBLEBUFFER) - ? FALSE : TRUE; - - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldResizeDrawable_MesaSW( - DGL_ctx *ctx, - BOOL bDefaultDriver, - BOOL bPersistantInterface, - BOOL bPersistantBuffers) -{ - WMesaContext *c; - - if (ctx == NULL) - return FALSE; - - c = ctx->glPriv; - if (c == NULL) - return FALSE; - - c->hDC = ctx->hDC; - c->Window = ctx->hWnd; -// c->width = ctx->dwWidth; -// c->height = ctx->dwHeight; - - if (c->db_flag) { - wmDeleteBackingStore(c); - wmCreateBackingStore(c, ctx->dwWidth, ctx->dwHeight); - } - - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldDestroyDrawable_MesaSW( - DGL_ctx *ctx) -{ - WMesaContext *c; - - if (ctx == NULL) - return FALSE; - - c = ctx->glPriv; - if (c == NULL) - return FALSE; - - if (c->hPalHalfTone != NULL) - DeleteObject(c->hPalHalfTone); - - if (c->db_flag) - wmDeleteBackingStore(c); - - free(c); - - ctx->glPriv = NULL; - - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldCreatePrivateGlobals_MesaSW(void) -{ - // Mesa Software driver needs no private globals - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldDestroyPrivateGlobals_MesaSW(void) -{ - // Mesa Software driver needs no private globals - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldBuildPixelformatList_MesaSW(void) -{ - // Release any existing pixelformat list - if (glb.lpPF) { - free(glb.lpPF); - } - - glb.nPixelFormatCount = 0; - glb.lpPF = NULL; - - glb.lpPF = (DGL_pixelFormat *)calloc(2, sizeof(DGL_pixelFormat)); - if (glb.lpPF == NULL) - return FALSE; - // Single-buffered - memcpy(&glb.lpPF[0], &pfTemplateMesaSW, sizeof(DGL_pixelFormat)); - glb.lpPF[0].pfd.dwFlags &= ~PFD_DOUBLEBUFFER; // Remove doublebuffer flag - // Double-buffered - memcpy(&glb.lpPF[1], &pfTemplateMesaSW, sizeof(DGL_pixelFormat)); - glb.nPixelFormatCount = 2; - - // Mark list as 'current' - glb.bPixelformatsDirty = FALSE; - - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldInitialiseMesa_MesaSW( - DGL_ctx *gld) -{ - GLcontext *ctx; - - if (gld == NULL) - return FALSE; - - ctx = gld->glCtx; - - // Set max texture size to 256 - ctx->Const.MaxTextureLevels = 8; - - // Multitexture enable/disable - ctx->Const.MaxTextureUnits = (glb.bMultitexture) ? MAX_TEXTURE_UNITS : 1; - - /* Initialize the software rasterizer and helper modules.*/ - - // Added this to force max texture diminsion to 256. KeithH - ctx->Const.MaxTextureLevels = 8; - - _mesa_enable_sw_extensions(ctx); - _mesa_enable_imaging_extensions(ctx); - _mesa_enable_1_3_extensions(ctx); - -// _swrast_CreateContext( ctx ); -// _ac_CreateContext( ctx ); -// _tnl_CreateContext( ctx ); -// _swsetup_CreateContext( ctx ); - - _swsetup_Wakeup( ctx ); - - wmesa_update_state_first_time(ctx, ~0); - - return TRUE; -} - -//--------------------------------------------------------------------------- - -BOOL gldSwapBuffers_MesaSW( - DGL_ctx *ctx, - HDC hDC, - HWND hWnd) -{ - WMesaContext *c; - - if (ctx == NULL) - return FALSE; - - c = ctx->glPriv; - if (c == NULL) - return FALSE; - - /* If we're swapping the buffer associated with the current context - * we have to flush any pending rendering commands first. - */ - - // Altered to respect bEmulateSingleBuffer. KeithH -// if (c->db_flag) - if (!c->bEmulateSingleBuffer) - wmFlush(c, hDC); - - return TRUE; -} - -//--------------------------------------------------------------------------- - -PROC gldGetProcAddress_MesaSW( - LPCSTR a) -{ - int i; - PROC proc = NULL; - - for (i=0; GLD_extList[i].proc; i++) { - if (!strcmp(a, GLD_extList[i].name)) { - proc = GLD_extList[i].proc; - break; - } - } - - gldLogPrintf(GLDLOG_INFO, "GetProcAddress: %s (%s)", a, proc ? "OK" : "Failed"); - - return proc; -} - -//--------------------------------------------------------------------------- - -BOOL gldGetDisplayMode_MesaSW( - DGL_ctx *ctx, - GLD_displayMode *glddm) -{ - HDC hdcDesktop; - - if (glddm == NULL) - return FALSE; - - // - // A bit hacky... KeithH - // - - hdcDesktop = GetDC(NULL); - glddm->Width = GetDeviceCaps(hdcDesktop, HORZRES); - glddm->Height = GetDeviceCaps(hdcDesktop, VERTRES); - glddm->BPP = GetDeviceCaps(hdcDesktop, BITSPIXEL); - glddm->Refresh = 0; - ReleaseDC(0, hdcDesktop); - - return TRUE; -} - -//--------------------------------------------------------------------------- - |