diff options
Diffstat (limited to 'src/mesa/drivers/windows/wgl.c')
| -rw-r--r-- | src/mesa/drivers/windows/wgl.c | 1290 |
1 files changed, 645 insertions, 645 deletions
diff --git a/src/mesa/drivers/windows/wgl.c b/src/mesa/drivers/windows/wgl.c index f7bf6820169..0db57641fe1 100644 --- a/src/mesa/drivers/windows/wgl.c +++ b/src/mesa/drivers/windows/wgl.c @@ -1,645 +1,645 @@ -/* $Id: wgl.c,v 1.8 2001/09/14 22:19:19 brianp Exp $ */
-
-/*
-* This library is free software; you can redistribute it and/or
-* modify it under the terms of the GNU Library General Public
-* License as published by the Free Software Foundation; either
-* version 2 of the License, or (at your option) any later version.
-*
-* This library is distributed in the hope that it will be useful,
-* but WITHOUT ANY WARRANTY; without even the implied warranty of
-* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-* Library General Public License for more details.
-*
-* You should have received a copy of the GNU Library General Public
-* License along with this library; if not, write to the Free
-* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-*
-*/
-
-/*
-* File name : wgl.c
-* WGL stuff. Added by Oleg Letsinsky, [email protected]
-* Some things originated from the 3Dfx WGL functions
-*/
-
-#ifdef WIN32
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-#include <windows.h>
-#define GL_GLEXT_PROTOTYPES
-#include <GL/gl.h>
-#include <GL/glext.h>
-//#include <GL/glu.h>
-
-#ifdef __cplusplus
-}
-#endif
-
-#include <stdio.h>
-#include <tchar.h>
-#include "wmesadef.h"
-#include "GL/wmesa.h"
-#include "mtypes.h"
-
-#define MAX_MESA_ATTRS 20
-
-struct __extensions__
-{
- PROC proc;
- char *name;
-};
-
-struct __pixelformat__
-{
- PIXELFORMATDESCRIPTOR pfd;
- GLboolean doubleBuffered;
-};
-
-struct __extensions__ ext[] = {
-
-#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)glColorTableEXT, "glColorTableEXT" },
- { (PROC)glColorSubTableEXT, "glColorSubTableEXT" },
- { (PROC)glGetColorTableEXT, "glGetColorTableEXT" },
- { (PROC)glGetColorTableParameterfvEXT, "glGetColorTableParameterfvEXT" },
- { (PROC)glGetColorTableParameterivEXT, "glGetColorTableParameterivEXT" },
- { (PROC)glPointParameterfEXT, "glPointParameterfEXT" },
- { (PROC)glPointParameterfvEXT, "glPointParameterfvEXT" },
- { (PROC)glBlendFuncSeparateEXT, "glBlendFuncSeparateEXT" },
- { (PROC)glLockArraysEXT, "glLockArraysEXT" },
- { (PROC)glUnlockArraysEXT, "glUnlockArraysEXT" }
-};
-
-int qt_ext = sizeof(ext) / sizeof(ext[0]);
-
-struct __pixelformat__ pix[] =
-{
- { { sizeof(PIXELFORMATDESCRIPTOR), 1,
- PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_GENERIC_FORMAT|PFD_DOUBLEBUFFER|PFD_SWAP_COPY,
- PFD_TYPE_RGBA,
- 24, 8, 0, 8, 8, 8, 16, 8, 24,
- 0, 0, 0, 0, 0, 16, 8, 0, 0, 0, 0, 0, 0 },
- GL_TRUE
- },
- { { sizeof(PIXELFORMATDESCRIPTOR), 1,
- PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_GENERIC_FORMAT,
- PFD_TYPE_RGBA,
- 24, 8, 0, 8, 8, 8, 16, 8, 24,
- 0, 0, 0, 0, 0, 16, 8, 0, 0, 0, 0, 0, 0 },
- GL_FALSE
- },
-};
-
-int qt_pix = sizeof(pix) / sizeof(pix[0]);
-
-typedef struct {
- WMesaContext ctx;
- HDC hdc;
-} MesaWglCtx;
-
-#define MESAWGL_CTX_MAX_COUNT 20
-
-static MesaWglCtx wgl_ctx[MESAWGL_CTX_MAX_COUNT];
-
-static unsigned ctx_count = 0;
-static unsigned ctx_current = -1;
-static unsigned curPFD = 0;
-
-WGLAPI BOOL GLAPIENTRY wglCopyContext(HGLRC hglrcSrc,HGLRC hglrcDst,UINT mask)
-{
- return(FALSE);
-}
-
-WGLAPI HGLRC GLAPIENTRY wglCreateContext(HDC hdc)
-{
- HWND hWnd;
- int i = 0;
- if(!(hWnd = WindowFromDC(hdc)))
- {
- SetLastError(0);
- return(NULL);
- }
- if (!ctx_count)
- {
- for(i=0;i<MESAWGL_CTX_MAX_COUNT;i++)
- {
- wgl_ctx[i].ctx = NULL;
- wgl_ctx[i].hdc = NULL;
- }
- }
- for( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ )
- {
- if ( wgl_ctx[i].ctx == NULL )
- {
- wgl_ctx[i].ctx = WMesaCreateContext( hWnd, NULL, GL_TRUE,
- pix[curPFD-1].doubleBuffered );
- if (wgl_ctx[i].ctx == NULL)
- break;
- wgl_ctx[i].hdc = hdc;
- ctx_count++;
- return ((HGLRC)wgl_ctx[i].ctx);
- }
- }
- SetLastError(0);
- return(NULL);
-}
-
-WGLAPI BOOL GLAPIENTRY wglDeleteContext(HGLRC hglrc)
-{
- int i;
- for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ )
- {
- if ( wgl_ctx[i].ctx == (PWMC) hglrc )
- {
- WMesaMakeCurrent((PWMC) hglrc);
- WMesaDestroyContext();
- wgl_ctx[i].ctx = NULL;
- wgl_ctx[i].hdc = NULL;
- ctx_count--;
- return(TRUE);
- }
- }
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI HGLRC GLAPIENTRY wglCreateLayerContext(HDC hdc,int iLayerPlane)
-{
- SetLastError(0);
- return(NULL);
-}
-
-WGLAPI HGLRC GLAPIENTRY wglGetCurrentContext(VOID)
-{
- if (ctx_current < 0)
- return 0;
- else
- return (HGLRC) wgl_ctx[ctx_current].ctx;
-}
-
-WGLAPI HDC GLAPIENTRY wglGetCurrentDC(VOID)
-{
- if (ctx_current < 0)
- return 0;
- else
- return wgl_ctx[ctx_current].hdc;
-}
-
-WGLAPI BOOL GLAPIENTRY wglMakeCurrent(HDC hdc,HGLRC hglrc)
-{
- int i;
-
- /* new code suggested by Andy Sy */
- if (!hdc || !hglrc) {
- WMesaMakeCurrent(NULL);
- ctx_current = -1;
- return TRUE;
- }
-
- for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ )
- {
- if ( wgl_ctx[i].ctx == (PWMC) hglrc )
- {
- wgl_ctx[i].hdc = hdc;
- WMesaMakeCurrent( (WMesaContext) hglrc );
- ctx_current = i;
- return TRUE;
- }
- }
- return FALSE;
-}
-
-WGLAPI BOOL GLAPIENTRY wglShareLists(HGLRC hglrc1,HGLRC hglrc2)
-{
- return(TRUE);
-}
-
-
-static FIXED FixedFromDouble(double d)
-{
- long l = (long) (d * 65536L);
- return *(FIXED *)&l;
-}
-
-
-/*
-** This is cribbed from FX/fxwgl.c, and seems to implement support
-** for bitmap fonts where the wglUseFontBitmapsA() code implements
-** support for outline fonts. In combination they hopefully give
-** fairly generic support for fonts.
-*/
-static BOOL wglUseFontBitmaps_FX(HDC fontDevice, DWORD firstChar,
- DWORD numChars, DWORD listBase)
-{
-#define VERIFY(a) a
-
- TEXTMETRIC metric;
- BITMAPINFO *dibInfo;
- HDC bitDevice;
- COLORREF tempColor;
- int i;
-
- VERIFY(GetTextMetrics(fontDevice, &metric));
-
- dibInfo = (BITMAPINFO *) calloc(sizeof(BITMAPINFO) + sizeof(RGBQUAD), 1);
- dibInfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
- dibInfo->bmiHeader.biPlanes = 1;
- dibInfo->bmiHeader.biBitCount = 1;
- dibInfo->bmiHeader.biCompression = BI_RGB;
-
- bitDevice = CreateCompatibleDC(fontDevice);
- // HDC bitDevice = CreateDC("DISPLAY", NULL, NULL, NULL);
- // VERIFY(bitDevice);
-
- // Swap fore and back colors so the bitmap has the right polarity
- tempColor = GetBkColor(bitDevice);
- SetBkColor(bitDevice, GetTextColor(bitDevice));
- SetTextColor(bitDevice, tempColor);
-
- // Place chars based on base line
- VERIFY(SetTextAlign(bitDevice, TA_BASELINE) >= 0 ? 1 : 0);
-
- for(i = 0; i < numChars; i++) {
- SIZE size;
- char curChar;
- int charWidth,charHeight,bmapWidth,bmapHeight,numBytes,res;
- HBITMAP bitObject;
- HGDIOBJ origBmap;
- unsigned char *bmap;
-
- curChar = i + firstChar;
-
- // Find how high/wide this character is
- VERIFY(GetTextExtentPoint32(bitDevice, &curChar, 1, &size));
-
- // Create the output bitmap
- charWidth = size.cx;
- charHeight = size.cy;
- bmapWidth = ((charWidth + 31) / 32) * 32; // Round up to the next multiple of 32 bits
- bmapHeight = charHeight;
- bitObject = CreateCompatibleBitmap(bitDevice,
- bmapWidth,
- bmapHeight);
- //VERIFY(bitObject);
-
- // Assign the output bitmap to the device
- origBmap = SelectObject(bitDevice, bitObject);
- VERIFY(origBmap);
-
- VERIFY( PatBlt( bitDevice, 0, 0, bmapWidth, bmapHeight,BLACKNESS ) );
-
- // Use our source font on the device
- VERIFY(SelectObject(bitDevice, GetCurrentObject(fontDevice,OBJ_FONT)));
-
- // Draw the character
- VERIFY(TextOut(bitDevice, 0, metric.tmAscent, &curChar, 1));
-
- // Unselect our bmap object
- VERIFY(SelectObject(bitDevice, origBmap));
-
- // Convert the display dependant representation to a 1 bit deep DIB
- numBytes = (bmapWidth * bmapHeight) / 8;
- bmap = malloc(numBytes);
- dibInfo->bmiHeader.biWidth = bmapWidth;
- dibInfo->bmiHeader.biHeight = bmapHeight;
- res = GetDIBits(bitDevice, bitObject, 0, bmapHeight, bmap,
- dibInfo,
- DIB_RGB_COLORS);
- //VERIFY(res);
-
- // Create the GL object
- glNewList(i + listBase, GL_COMPILE);
- glBitmap(bmapWidth, bmapHeight, 0.0, metric.tmDescent,
- charWidth, 0.0,
- bmap);
- glEndList();
- // CheckGL();
-
- // Destroy the bmap object
- DeleteObject(bitObject);
-
- // Deallocate the bitmap data
- free(bmap);
- }
-
- // Destroy the DC
- VERIFY(DeleteDC(bitDevice));
-
- free(dibInfo);
-
- return TRUE;
-#undef VERIFY
-}
-
-WGLAPI BOOL GLAPIENTRY wglUseFontBitmapsA(HDC hdc, DWORD first,
- DWORD count, DWORD listBase)
-{
- int i;
- GLuint font_list;
- DWORD size;
- GLYPHMETRICS gm;
- HANDLE hBits;
- LPSTR lpBits;
- MAT2 mat;
- int success = TRUE;
-
- if (first<0)
- return FALSE;
- if (count<0)
- return FALSE;
- if (listBase<0)
- return FALSE;
-
- font_list = listBase;
-
- mat.eM11 = FixedFromDouble(1);
- mat.eM12 = FixedFromDouble(0);
- mat.eM21 = FixedFromDouble(0);
- mat.eM22 = FixedFromDouble(-1);
-
- memset(&gm,0,sizeof(gm));
-
- /*
- ** If we can't get the glyph outline, it may be because this is a fixed
- ** font. Try processing it that way.
- */
- if( GetGlyphOutline(hdc, first, GGO_BITMAP, &gm, 0, NULL, &mat)
- == GDI_ERROR )
- {
- return wglUseFontBitmaps_FX( hdc, first, count, listBase );
- }
-
- /*
- ** Otherwise process all desired characters.
- */
- for (i = 0; i < count; i++)
- {
- DWORD err;
-
- glNewList( font_list+i, GL_COMPILE );
-
- /* allocate space for the bitmap/outline */
- size = GetGlyphOutline(hdc, first + i, GGO_BITMAP, &gm, 0, NULL, &mat);
- if (size == GDI_ERROR)
- {
- glEndList( );
- err = GetLastError();
- success = FALSE;
- continue;
- }
-
- hBits = GlobalAlloc(GHND, size+1);
- lpBits = GlobalLock(hBits);
-
- err =
- GetGlyphOutline(hdc, /* handle to device context */
- first + i, /* character to query */
- GGO_BITMAP, /* format of data to return */
- &gm, /* pointer to structure for metrics*/
- size, /* size of buffer for data */
- lpBits, /* pointer to buffer for data */
- &mat /* pointer to transformation */
- /* matrix structure */
- );
-
- if (err == GDI_ERROR)
- {
- GlobalUnlock(hBits);
- GlobalFree(hBits);
-
- glEndList( );
- err = GetLastError();
- success = FALSE;
- continue;
- }
-
- glBitmap(gm.gmBlackBoxX,gm.gmBlackBoxY,
- -gm.gmptGlyphOrigin.x,
- gm.gmptGlyphOrigin.y,
- gm.gmCellIncX,gm.gmCellIncY,
- (const GLubyte * )lpBits);
-
- GlobalUnlock(hBits);
- GlobalFree(hBits);
-
- glEndList( );
- }
-
- return success;
-}
-
-
-WGLAPI BOOL GLAPIENTRY wglUseFontBitmapsW(HDC hdc,DWORD first,DWORD count,DWORD listBase)
-{
- return FALSE;
-}
-
-WGLAPI BOOL GLAPIENTRY wglUseFontOutlinesA(HDC hdc,DWORD first,DWORD count,
- DWORD listBase,FLOAT deviation,
- FLOAT extrusion,int format,
- LPGLYPHMETRICSFLOAT lpgmf)
-{
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI BOOL GLAPIENTRY wglUseFontOutlinesW(HDC hdc,DWORD first,DWORD count,
- DWORD listBase,FLOAT deviation,
- FLOAT extrusion,int format,
- LPGLYPHMETRICSFLOAT lpgmf)
-{
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI BOOL GLAPIENTRY wglDescribeLayerPlane(HDC hdc,int iPixelFormat,
- int iLayerPlane,UINT nBytes,
- LPLAYERPLANEDESCRIPTOR plpd)
-{
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI int GLAPIENTRY wglSetLayerPaletteEntries(HDC hdc,int iLayerPlane,
- int iStart,int cEntries,
- CONST COLORREF *pcr)
-{
- SetLastError(0);
- return(0);
-}
-
-WGLAPI int GLAPIENTRY wglGetLayerPaletteEntries(HDC hdc,int iLayerPlane,
- int iStart,int cEntries,
- COLORREF *pcr)
-{
- SetLastError(0);
- return(0);
-}
-
-WGLAPI BOOL GLAPIENTRY wglRealizeLayerPalette(HDC hdc,int iLayerPlane,BOOL bRealize)
-{
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI BOOL GLAPIENTRY wglSwapLayerBuffers(HDC hdc,UINT fuPlanes)
-{
- if( !hdc )
- {
- WMesaSwapBuffers();
- return(TRUE);
- }
- SetLastError(0);
- return(FALSE);
-}
-
-WGLAPI int GLAPIENTRY wglChoosePixelFormat(HDC hdc,
- CONST PIXELFORMATDESCRIPTOR *ppfd)
-{
- int i,best = -1,bestdelta = 0x7FFFFFFF,delta,qt_valid_pix;
-
- qt_valid_pix = qt_pix;
- if(ppfd->nSize != sizeof(PIXELFORMATDESCRIPTOR) || ppfd->nVersion != 1)
- {
- SetLastError(0);
- return(0);
- }
- for(i = 0;i < qt_valid_pix;i++)
- {
- delta = 0;
- if(
- (ppfd->dwFlags & PFD_DRAW_TO_WINDOW) &&
- !(pix[i].pfd.dwFlags & PFD_DRAW_TO_WINDOW))
- continue;
- if(
- (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) &&
- !(pix[i].pfd.dwFlags & PFD_DRAW_TO_BITMAP))
- continue;
- if(
- (ppfd->dwFlags & PFD_SUPPORT_GDI) &&
- !(pix[i].pfd.dwFlags & PFD_SUPPORT_GDI))
- continue;
- if(
- (ppfd->dwFlags & PFD_SUPPORT_OPENGL) &&
- !(pix[i].pfd.dwFlags & PFD_SUPPORT_OPENGL))
- continue;
- if(
- !(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) &&
- ((ppfd->dwFlags & PFD_DOUBLEBUFFER) != (pix[i].pfd.dwFlags & PFD_DOUBLEBUFFER)))
- continue;
- if(
- !(ppfd->dwFlags & PFD_STEREO_DONTCARE) &&
- ((ppfd->dwFlags & PFD_STEREO) != (pix[i].pfd.dwFlags & PFD_STEREO)))
- continue;
- if(ppfd->iPixelType != pix[i].pfd.iPixelType)
- delta++;
- if(delta < bestdelta)
- {
- best = i + 1;
- bestdelta = delta;
- if(bestdelta == 0)
- break;
- }
- }
- if(best == -1)
- {
- SetLastError(0);
- return(0);
- }
- return(best);
-}
-
-WGLAPI int GLAPIENTRY wglDescribePixelFormat(HDC hdc,int iPixelFormat,UINT nBytes,
- LPPIXELFORMATDESCRIPTOR ppfd)
-{
- int qt_valid_pix;
-
- qt_valid_pix = qt_pix;
- if(iPixelFormat < 1 || iPixelFormat > qt_valid_pix || nBytes != sizeof(PIXELFORMATDESCRIPTOR))
- {
- SetLastError(0);
- return(0);
- }
- *ppfd = pix[iPixelFormat - 1].pfd;
- return(qt_valid_pix);
-}
-
-/*
-* GetProcAddress - return the address of an appropriate extension
-*/
-WGLAPI PROC GLAPIENTRY wglGetProcAddress(LPCSTR lpszProc)
-{
- int i;
- for(i = 0;i < qt_ext;i++)
- if(!strcmp(lpszProc,ext[i].name))
- return(ext[i].proc);
-
- SetLastError(0);
- return(NULL);
-}
-
-WGLAPI int GLAPIENTRY wglGetPixelFormat(HDC hdc)
-{
- if(curPFD == 0)
- {
- SetLastError(0);
- return(0);
- }
- return(curPFD);
-}
-
-WGLAPI BOOL GLAPIENTRY wglSetPixelFormat(HDC hdc,int iPixelFormat,
- PIXELFORMATDESCRIPTOR *ppfd)
-{
- int qt_valid_pix;
-
- qt_valid_pix = qt_pix;
- if(iPixelFormat < 1 || iPixelFormat > qt_valid_pix || ppfd->nSize != sizeof(PIXELFORMATDESCRIPTOR))
- {
- SetLastError(0);
- return(FALSE);
- }
- curPFD = iPixelFormat;
- return(TRUE);
-}
-
-WGLAPI BOOL GLAPIENTRY wglSwapBuffers(HDC hdc)
-{
- if (ctx_current < 0)
- return FALSE;
-
- if(wgl_ctx[ctx_current].ctx == NULL) {
- SetLastError(0);
- return(FALSE);
- }
- WMesaSwapBuffers();
- return(TRUE);
-}
-
-#endif /* WIN32 */
+/* $Id: wgl.c,v 1.9 2001/09/18 16:39:38 kschultz Exp $ */ + +/* +* This library is free software; you can redistribute it and/or +* modify it under the terms of the GNU Library General Public +* License as published by the Free Software Foundation; either +* version 2 of the License, or (at your option) any later version. +* +* This library is distributed in the hope that it will be useful, +* but WITHOUT ANY WARRANTY; without even the implied warranty of +* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU +* Library General Public License for more details. +* +* You should have received a copy of the GNU Library General Public +* License along with this library; if not, write to the Free +* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. +* +*/ + +/* +* File name : wgl.c +* WGL stuff. Added by Oleg Letsinsky, [email protected] +* Some things originated from the 3Dfx WGL functions +*/ + +#ifdef WIN32 + +#ifdef __cplusplus +extern "C" { +#endif + +#include <windows.h> +#define GL_GLEXT_PROTOTYPES +#include <GL/gl.h> +#include <GL/glext.h> +//#include <GL/glu.h> + +#ifdef __cplusplus +} +#endif + +#include <stdio.h> +#include <tchar.h> +#include "wmesadef.h" +#include "GL/wmesa.h" +#include "mtypes.h" + +#define MAX_MESA_ATTRS 20 + +struct __extensions__ +{ + PROC proc; + char *name; +}; + +struct __pixelformat__ +{ + PIXELFORMATDESCRIPTOR pfd; + GLboolean doubleBuffered; +}; + +struct __extensions__ ext[] = { + +#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)glColorTableEXT, "glColorTableEXT" }, + { (PROC)glColorSubTableEXT, "glColorSubTableEXT" }, + { (PROC)glGetColorTableEXT, "glGetColorTableEXT" }, + { (PROC)glGetColorTableParameterfvEXT, "glGetColorTableParameterfvEXT" }, + { (PROC)glGetColorTableParameterivEXT, "glGetColorTableParameterivEXT" }, + { (PROC)glPointParameterfEXT, "glPointParameterfEXT" }, + { (PROC)glPointParameterfvEXT, "glPointParameterfvEXT" }, + { (PROC)glBlendFuncSeparateEXT, "glBlendFuncSeparateEXT" }, + { (PROC)glLockArraysEXT, "glLockArraysEXT" }, + { (PROC)glUnlockArraysEXT, "glUnlockArraysEXT" } +}; + +int qt_ext = sizeof(ext) / sizeof(ext[0]); + +struct __pixelformat__ pix[] = +{ + { { sizeof(PIXELFORMATDESCRIPTOR), 1, + PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_GENERIC_FORMAT|PFD_DOUBLEBUFFER|PFD_SWAP_COPY, + PFD_TYPE_RGBA, + 24, 8, 0, 8, 8, 8, 16, 8, 24, + 0, 0, 0, 0, 0, 16, 8, 0, 0, 0, 0, 0, 0 }, + GL_TRUE + }, + { { sizeof(PIXELFORMATDESCRIPTOR), 1, + PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|PFD_GENERIC_FORMAT, + PFD_TYPE_RGBA, + 24, 8, 0, 8, 8, 8, 16, 8, 24, + 0, 0, 0, 0, 0, 16, 8, 0, 0, 0, 0, 0, 0 }, + GL_FALSE + }, +}; + +int qt_pix = sizeof(pix) / sizeof(pix[0]); + +typedef struct { + WMesaContext ctx; + HDC hdc; +} MesaWglCtx; + +#define MESAWGL_CTX_MAX_COUNT 20 + +static MesaWglCtx wgl_ctx[MESAWGL_CTX_MAX_COUNT]; + +static unsigned ctx_count = 0; +static unsigned ctx_current = -1; +static unsigned curPFD = 0; + +WGLAPI BOOL GLAPIENTRY wglCopyContext(HGLRC hglrcSrc,HGLRC hglrcDst,UINT mask) +{ + return(FALSE); +} + +WGLAPI HGLRC GLAPIENTRY wglCreateContext(HDC hdc) +{ + HWND hWnd; + int i = 0; + if(!(hWnd = WindowFromDC(hdc))) + { + SetLastError(0); + return(NULL); + } + if (!ctx_count) + { + for(i=0;i<MESAWGL_CTX_MAX_COUNT;i++) + { + wgl_ctx[i].ctx = NULL; + wgl_ctx[i].hdc = NULL; + } + } + for( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) + { + if ( wgl_ctx[i].ctx == NULL ) + { + wgl_ctx[i].ctx = WMesaCreateContext( hWnd, NULL, GL_TRUE, + pix[curPFD-1].doubleBuffered ); + if (wgl_ctx[i].ctx == NULL) + break; + wgl_ctx[i].hdc = hdc; + ctx_count++; + return ((HGLRC)wgl_ctx[i].ctx); + } + } + SetLastError(0); + return(NULL); +} + +WGLAPI BOOL GLAPIENTRY wglDeleteContext(HGLRC hglrc) +{ + int i; + for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) + { + if ( wgl_ctx[i].ctx == (PWMC) hglrc ) + { + WMesaMakeCurrent((PWMC) hglrc); + WMesaDestroyContext(); + wgl_ctx[i].ctx = NULL; + wgl_ctx[i].hdc = NULL; + ctx_count--; + return(TRUE); + } + } + SetLastError(0); + return(FALSE); +} + +WGLAPI HGLRC GLAPIENTRY wglCreateLayerContext(HDC hdc,int iLayerPlane) +{ + SetLastError(0); + return(NULL); +} + +WGLAPI HGLRC GLAPIENTRY wglGetCurrentContext(VOID) +{ + if (ctx_current < 0) + return 0; + else + return (HGLRC) wgl_ctx[ctx_current].ctx; +} + +WGLAPI HDC GLAPIENTRY wglGetCurrentDC(VOID) +{ + if (ctx_current < 0) + return 0; + else + return wgl_ctx[ctx_current].hdc; +} + +WGLAPI BOOL GLAPIENTRY wglMakeCurrent(HDC hdc,HGLRC hglrc) +{ + int i; + + /* new code suggested by Andy Sy */ + if (!hdc || !hglrc) { + WMesaMakeCurrent(NULL); + ctx_current = -1; + return TRUE; + } + + for ( i = 0; i < MESAWGL_CTX_MAX_COUNT; i++ ) + { + if ( wgl_ctx[i].ctx == (PWMC) hglrc ) + { + wgl_ctx[i].hdc = hdc; + WMesaMakeCurrent( (WMesaContext) hglrc ); + ctx_current = i; + return TRUE; + } + } + return FALSE; +} + +WGLAPI BOOL GLAPIENTRY wglShareLists(HGLRC hglrc1,HGLRC hglrc2) +{ + return(TRUE); +} + + +static FIXED FixedFromDouble(double d) +{ + long l = (long) (d * 65536L); + return *(FIXED *)&l; +} + + +/* +** This is cribbed from FX/fxwgl.c, and seems to implement support +** for bitmap fonts where the wglUseFontBitmapsA() code implements +** support for outline fonts. In combination they hopefully give +** fairly generic support for fonts. +*/ +static BOOL wglUseFontBitmaps_FX(HDC fontDevice, DWORD firstChar, + DWORD numChars, DWORD listBase) +{ +#define VERIFY(a) a + + TEXTMETRIC metric; + BITMAPINFO *dibInfo; + HDC bitDevice; + COLORREF tempColor; + int i; + + VERIFY(GetTextMetrics(fontDevice, &metric)); + + dibInfo = (BITMAPINFO *) calloc(sizeof(BITMAPINFO) + sizeof(RGBQUAD), 1); + dibInfo->bmiHeader.biSize = sizeof(BITMAPINFOHEADER); + dibInfo->bmiHeader.biPlanes = 1; + dibInfo->bmiHeader.biBitCount = 1; + dibInfo->bmiHeader.biCompression = BI_RGB; + + bitDevice = CreateCompatibleDC(fontDevice); + // HDC bitDevice = CreateDC("DISPLAY", NULL, NULL, NULL); + // VERIFY(bitDevice); + + // Swap fore and back colors so the bitmap has the right polarity + tempColor = GetBkColor(bitDevice); + SetBkColor(bitDevice, GetTextColor(bitDevice)); + SetTextColor(bitDevice, tempColor); + + // Place chars based on base line + VERIFY(SetTextAlign(bitDevice, TA_BASELINE) >= 0 ? 1 : 0); + + for(i = 0; i < numChars; i++) { + SIZE size; + char curChar; + int charWidth,charHeight,bmapWidth,bmapHeight,numBytes,res; + HBITMAP bitObject; + HGDIOBJ origBmap; + unsigned char *bmap; + + curChar = i + firstChar; + + // Find how high/wide this character is + VERIFY(GetTextExtentPoint32(bitDevice, &curChar, 1, &size)); + + // Create the output bitmap + charWidth = size.cx; + charHeight = size.cy; + bmapWidth = ((charWidth + 31) / 32) * 32; // Round up to the next multiple of 32 bits + bmapHeight = charHeight; + bitObject = CreateCompatibleBitmap(bitDevice, + bmapWidth, + bmapHeight); + //VERIFY(bitObject); + + // Assign the output bitmap to the device + origBmap = SelectObject(bitDevice, bitObject); + VERIFY(origBmap); + + VERIFY( PatBlt( bitDevice, 0, 0, bmapWidth, bmapHeight,BLACKNESS ) ); + + // Use our source font on the device + VERIFY(SelectObject(bitDevice, GetCurrentObject(fontDevice,OBJ_FONT))); + + // Draw the character + VERIFY(TextOut(bitDevice, 0, metric.tmAscent, &curChar, 1)); + + // Unselect our bmap object + VERIFY(SelectObject(bitDevice, origBmap)); + + // Convert the display dependant representation to a 1 bit deep DIB + numBytes = (bmapWidth * bmapHeight) / 8; + bmap = malloc(numBytes); + dibInfo->bmiHeader.biWidth = bmapWidth; + dibInfo->bmiHeader.biHeight = bmapHeight; + res = GetDIBits(bitDevice, bitObject, 0, bmapHeight, bmap, + dibInfo, + DIB_RGB_COLORS); + //VERIFY(res); + + // Create the GL object + glNewList(i + listBase, GL_COMPILE); + glBitmap(bmapWidth, bmapHeight, 0.0, metric.tmDescent, + charWidth, 0.0, + bmap); + glEndList(); + // CheckGL(); + + // Destroy the bmap object + DeleteObject(bitObject); + + // Deallocate the bitmap data + free(bmap); + } + + // Destroy the DC + VERIFY(DeleteDC(bitDevice)); + + free(dibInfo); + + return TRUE; +#undef VERIFY +} + +WGLAPI BOOL GLAPIENTRY wglUseFontBitmapsA(HDC hdc, DWORD first, + DWORD count, DWORD listBase) +{ + int i; + GLuint font_list; + DWORD size; + GLYPHMETRICS gm; + HANDLE hBits; + LPSTR lpBits; + MAT2 mat; + int success = TRUE; + + if (first<0) + return FALSE; + if (count<0) + return FALSE; + if (listBase<0) + return FALSE; + + font_list = listBase; + + mat.eM11 = FixedFromDouble(1); + mat.eM12 = FixedFromDouble(0); + mat.eM21 = FixedFromDouble(0); + mat.eM22 = FixedFromDouble(-1); + + memset(&gm,0,sizeof(gm)); + + /* + ** If we can't get the glyph outline, it may be because this is a fixed + ** font. Try processing it that way. + */ + if( GetGlyphOutline(hdc, first, GGO_BITMAP, &gm, 0, NULL, &mat) + == GDI_ERROR ) + { + return wglUseFontBitmaps_FX( hdc, first, count, listBase ); + } + + /* + ** Otherwise process all desired characters. + */ + for (i = 0; i < count; i++) + { + DWORD err; + + glNewList( font_list+i, GL_COMPILE ); + + /* allocate space for the bitmap/outline */ + size = GetGlyphOutline(hdc, first + i, GGO_BITMAP, &gm, 0, NULL, &mat); + if (size == GDI_ERROR) + { + glEndList( ); + err = GetLastError(); + success = FALSE; + continue; + } + + hBits = GlobalAlloc(GHND, size+1); + lpBits = GlobalLock(hBits); + + err = + GetGlyphOutline(hdc, /* handle to device context */ + first + i, /* character to query */ + GGO_BITMAP, /* format of data to return */ + &gm, /* pointer to structure for metrics*/ + size, /* size of buffer for data */ + lpBits, /* pointer to buffer for data */ + &mat /* pointer to transformation */ + /* matrix structure */ + ); + + if (err == GDI_ERROR) + { + GlobalUnlock(hBits); + GlobalFree(hBits); + + glEndList( ); + err = GetLastError(); + success = FALSE; + continue; + } + + glBitmap(gm.gmBlackBoxX,gm.gmBlackBoxY, + -gm.gmptGlyphOrigin.x, + gm.gmptGlyphOrigin.y, + gm.gmCellIncX,gm.gmCellIncY, + (const GLubyte * )lpBits); + + GlobalUnlock(hBits); + GlobalFree(hBits); + + glEndList( ); + } + + return success; +} + + +WGLAPI BOOL GLAPIENTRY wglUseFontBitmapsW(HDC hdc,DWORD first,DWORD count,DWORD listBase) +{ + return FALSE; +} + +WGLAPI BOOL GLAPIENTRY wglUseFontOutlinesA(HDC hdc,DWORD first,DWORD count, + DWORD listBase,FLOAT deviation, + FLOAT extrusion,int format, + LPGLYPHMETRICSFLOAT lpgmf) +{ + SetLastError(0); + return(FALSE); +} + +WGLAPI BOOL GLAPIENTRY wglUseFontOutlinesW(HDC hdc,DWORD first,DWORD count, + DWORD listBase,FLOAT deviation, + FLOAT extrusion,int format, + LPGLYPHMETRICSFLOAT lpgmf) +{ + SetLastError(0); + return(FALSE); +} + +WGLAPI BOOL GLAPIENTRY wglDescribeLayerPlane(HDC hdc,int iPixelFormat, + int iLayerPlane,UINT nBytes, + LPLAYERPLANEDESCRIPTOR plpd) +{ + SetLastError(0); + return(FALSE); +} + +WGLAPI int GLAPIENTRY wglSetLayerPaletteEntries(HDC hdc,int iLayerPlane, + int iStart,int cEntries, + CONST COLORREF *pcr) +{ + SetLastError(0); + return(0); +} + +WGLAPI int GLAPIENTRY wglGetLayerPaletteEntries(HDC hdc,int iLayerPlane, + int iStart,int cEntries, + COLORREF *pcr) +{ + SetLastError(0); + return(0); +} + +WGLAPI BOOL GLAPIENTRY wglRealizeLayerPalette(HDC hdc,int iLayerPlane,BOOL bRealize) +{ + SetLastError(0); + return(FALSE); +} + +WGLAPI BOOL GLAPIENTRY wglSwapLayerBuffers(HDC hdc,UINT fuPlanes) +{ + if( !hdc ) + { + WMesaSwapBuffers(); + return(TRUE); + } + SetLastError(0); + return(FALSE); +} + +WGLAPI int GLAPIENTRY wglChoosePixelFormat(HDC hdc, + CONST PIXELFORMATDESCRIPTOR *ppfd) +{ + int i,best = -1,bestdelta = 0x7FFFFFFF,delta,qt_valid_pix; + + qt_valid_pix = qt_pix; + if(ppfd->nSize != sizeof(PIXELFORMATDESCRIPTOR) || ppfd->nVersion != 1) + { + SetLastError(0); + return(0); + } + for(i = 0;i < qt_valid_pix;i++) + { + delta = 0; + if( + (ppfd->dwFlags & PFD_DRAW_TO_WINDOW) && + !(pix[i].pfd.dwFlags & PFD_DRAW_TO_WINDOW)) + continue; + if( + (ppfd->dwFlags & PFD_DRAW_TO_BITMAP) && + !(pix[i].pfd.dwFlags & PFD_DRAW_TO_BITMAP)) + continue; + if( + (ppfd->dwFlags & PFD_SUPPORT_GDI) && + !(pix[i].pfd.dwFlags & PFD_SUPPORT_GDI)) + continue; + if( + (ppfd->dwFlags & PFD_SUPPORT_OPENGL) && + !(pix[i].pfd.dwFlags & PFD_SUPPORT_OPENGL)) + continue; + if( + !(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE) && + ((ppfd->dwFlags & PFD_DOUBLEBUFFER) != (pix[i].pfd.dwFlags & PFD_DOUBLEBUFFER))) + continue; + if( + !(ppfd->dwFlags & PFD_STEREO_DONTCARE) && + ((ppfd->dwFlags & PFD_STEREO) != (pix[i].pfd.dwFlags & PFD_STEREO))) + continue; + if(ppfd->iPixelType != pix[i].pfd.iPixelType) + delta++; + if(delta < bestdelta) + { + best = i + 1; + bestdelta = delta; + if(bestdelta == 0) + break; + } + } + if(best == -1) + { + SetLastError(0); + return(0); + } + return(best); +} + +WGLAPI int GLAPIENTRY wglDescribePixelFormat(HDC hdc,int iPixelFormat,UINT nBytes, + LPPIXELFORMATDESCRIPTOR ppfd) +{ + int qt_valid_pix; + + qt_valid_pix = qt_pix; + if(iPixelFormat < 1 || iPixelFormat > qt_valid_pix || nBytes != sizeof(PIXELFORMATDESCRIPTOR)) + { + SetLastError(0); + return(0); + } + *ppfd = pix[iPixelFormat - 1].pfd; + return(qt_valid_pix); +} + +/* +* GetProcAddress - return the address of an appropriate extension +*/ +WGLAPI PROC GLAPIENTRY wglGetProcAddress(LPCSTR lpszProc) +{ + int i; + for(i = 0;i < qt_ext;i++) + if(!strcmp(lpszProc,ext[i].name)) + return(ext[i].proc); + + SetLastError(0); + return(NULL); +} + +WGLAPI int GLAPIENTRY wglGetPixelFormat(HDC hdc) +{ + if(curPFD == 0) + { + SetLastError(0); + return(0); + } + return(curPFD); +} + +WGLAPI BOOL GLAPIENTRY wglSetPixelFormat(HDC hdc,int iPixelFormat, + PIXELFORMATDESCRIPTOR *ppfd) +{ + int qt_valid_pix; + + qt_valid_pix = qt_pix; + if(iPixelFormat < 1 || iPixelFormat > qt_valid_pix || ppfd->nSize != sizeof(PIXELFORMATDESCRIPTOR)) + { + SetLastError(0); + return(FALSE); + } + curPFD = iPixelFormat; + return(TRUE); +} + +WGLAPI BOOL GLAPIENTRY wglSwapBuffers(HDC hdc) +{ + if (ctx_current < 0) + return FALSE; + + if(wgl_ctx[ctx_current].ctx == NULL) { + SetLastError(0); + return(FALSE); + } + WMesaSwapBuffers(); + return(TRUE); +} + +#endif /* WIN32 */ |