Initial revision

1 files changed, 806 insertions, 0 deletions

diff --git a/src/mesa/drivers/glide/fxwgl.c b/src/mesa/drivers/glide/fxwgl.c
new file mode 100644
index 0000000000..cbea79aecd
--- /dev/null
+++ b/src/mesa/drivers/glide/fxwgl.c
@@ -0,0 +1,806 @@
+/* fxwgl.c - Microsoft wgl functions emulation for
+ *           3Dfx VooDoo/Mesa interface
+ */
+
+/*
+ * 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.
+ *
+ * See the file fxapi.c for more informations about authors
+ *
+ */
+
+#ifdef __WIN32__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#include <windows.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#ifdef __cplusplus
+           }
+#endif
+
+#include <stdio.h>
+#include <GL/fxmesa.h>
+#include "fxdrv.h"
+
+#define MAX_MESA_ATTRS  20
+
+struct __extensions__
+{
+  PROC  proc;
+  char  *name;
+};
+
+struct __pixelformat__
+{
+  PIXELFORMATDESCRIPTOR pfd;
+  GLint mesaAttr[MAX_MESA_ATTRS];
+};
+
+WINGDIAPI void GLAPIENTRY gl3DfxSetPaletteEXT(GLuint *);
+
+static 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)gl3DfxSetPaletteEXT,			"3DFX_set_global_palette"	},
+   { (PROC)glColorTableEXT,			"glColorTableEXT"		},
+   { (PROC)glColorSubTableEXT,			"glColorSubTableEXT"		},
+   { (PROC)glGetColorTableEXT,			"glGetColorTableEXT"		},
+   { (PROC)glGetColorTableParameterfvEXT,	"glGetColorTableParameterfvEXT"	},
+   { (PROC)glGetColorTableParameterivEXT,	"glGetColorTableParameterivEXT"	},
+   { (PROC)glPointParameterfEXT,		"glPointParameterfEXT"		},
+   { (PROC)glPointParameterfvEXT,		"glPointParameterfvEXT"		},
+   { (PROC)glBlendFuncSeparateINGR,		"glBlendFuncSeparateINGR"	},
+   { (PROC)glLockArraysEXT,			"glLockArraysEXT"		},
+   { (PROC)glUnlockArraysEXT,			"glUnlockArraysEXT"		}
+};
+
+static int qt_ext = sizeof(ext) / sizeof(ext[0]);
+
+struct __pixelformat__  pix[] =
+{
+  /* None */
+  {
+    {
+      sizeof(PIXELFORMATDESCRIPTOR),  1,
+      PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|
+      PFD_DOUBLEBUFFER|PFD_SWAP_COPY,
+      PFD_TYPE_RGBA,
+      32,
+      8,0,8,8,8,16,0,24,
+      0,0,0,0,0,
+      0,
+      0,
+      0,
+      PFD_MAIN_PLANE,
+      0,0,0,0
+    },
+    {
+      FXMESA_DOUBLEBUFFER,
+      FXMESA_ALPHA_SIZE,      0,
+      FXMESA_DEPTH_SIZE,      0,
+      FXMESA_STENCIL_SIZE,    0,
+      FXMESA_ACCUM_SIZE,      0,
+      FXMESA_NONE
+    }
+  },
+
+  /* Alpha */
+  {
+    {
+      sizeof(PIXELFORMATDESCRIPTOR),  1,
+      PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|
+      PFD_DOUBLEBUFFER|PFD_SWAP_COPY,
+      PFD_TYPE_RGBA,
+      32,
+      8,0,8,8,8,16,8,24,
+      0,0,0,0,0,
+      0,
+      0,
+      0,
+      PFD_MAIN_PLANE,
+      0,0,0,0
+    },
+    {
+      FXMESA_DOUBLEBUFFER,
+      FXMESA_ALPHA_SIZE,      8,
+      FXMESA_DEPTH_SIZE,      0,
+      FXMESA_STENCIL_SIZE,    0,
+      FXMESA_ACCUM_SIZE,      0,
+      FXMESA_NONE
+    }
+  },
+
+  /* Depth */
+  {
+    {
+      sizeof(PIXELFORMATDESCRIPTOR),  1,
+      PFD_DRAW_TO_WINDOW|PFD_SUPPORT_OPENGL|
+      PFD_DOUBLEBUFFER|PFD_SWAP_COPY,
+      PFD_TYPE_RGBA,
+      32,
+      8,0,8,8,8,16,0,24,
+      0,0,0,0,0,
+      16,
+      0,
+      0,
+      PFD_MAIN_PLANE,
+      0,0,0,0
+    },
+    {
+      FXMESA_DOUBLEBUFFER,
+      FXMESA_ALPHA_SIZE,      0,
+      FXMESA_DEPTH_SIZE,      16,
+      FXMESA_STENCIL_SIZE,    0,
+      FXMESA_ACCUM_SIZE,      0,
+      FXMESA_NONE
+    }
+  }
+};
+static int qt_pix = sizeof(pix) / sizeof(pix[0]);
+
+static fxMesaContext ctx = NULL;
+static WNDPROC hWNDOldProc;
+static int curPFD = 0;
+static HDC hDC;
+static HWND hWND;
+
+static GLboolean haveDualHead;
+
+/* For the in-window-rendering hack */
+
+static GLboolean   gdiWindowHack;
+static GLboolean   gdiWindowHackEna;
+static void        *dibSurfacePtr;
+static BITMAPINFO  *dibBMI;
+static HBITMAP     dibHBM;
+static HWND        dibWnd;
+
+LONG GLAPIENTRY __wglMonitor(HWND hwnd,UINT message,UINT wParam,LONG lParam)
+
+{
+  long ret; /* Now gives the resized window at the end to hWNDOldProc */
+
+  if(ctx && hwnd == hWND) {
+    switch(message) {
+    case WM_PAINT:
+    case WM_MOVE:
+      break;
+    case WM_DISPLAYCHANGE:
+    case WM_SIZE:
+      if (wParam != SIZE_MINIMIZED) {
+        static int moving = 0;
+        if (!moving) {
+          if(fxQueryHardware()!=GR_SSTTYPE_VOODOO) {
+            if(!grSstControl(GR_CONTROL_RESIZE)) {
+              moving = 1;
+              SetWindowPos(hwnd, 0, 0, 0, 300, 300, SWP_NOMOVE|SWP_NOZORDER);
+              moving = 0;
+              if(!grSstControl(GR_CONTROL_RESIZE)) {
+                /*MessageBox(0,_T("Error changing windowsize"),_T("fxMESA"),MB_OK);*/
+                PostMessage(hWND,WM_CLOSE,0,0);
+              }
+            }
+          }
+
+          /* Do the clipping in the glide library */
+          grClipWindow(0,0,grSstScreenWidth(),grSstScreenHeight());
+          /* And let the new size set in the context */
+          fxMesaUpdateScreenSize(ctx);
+        }
+      }
+      break;
+    case WM_ACTIVATE:
+      if((fxQueryHardware()==GR_SSTTYPE_VOODOO) &&
+         (!gdiWindowHack) &&
+         (!haveDualHead)) {
+        WORD fActive = LOWORD(wParam);
+        BOOL fMinimized = (BOOL) HIWORD(wParam);
+
+        if((fActive == WA_INACTIVE) || fMinimized)
+          grSstControl(GR_CONTROL_DEACTIVATE);
+        else
+          grSstControl(GR_CONTROL_ACTIVATE);
+      }
+      break;
+    case WM_SHOWWINDOW:
+      break;
+    case WM_SYSCHAR:
+      if(gdiWindowHackEna && (VK_RETURN == wParam)) {
+        if(gdiWindowHack) {
+          gdiWindowHack = GL_FALSE;
+          grSstControl(GR_CONTROL_ACTIVATE);
+        } else {
+          gdiWindowHack = GL_TRUE;
+          grSstControl(GR_CONTROL_DEACTIVATE);
+        }
+      }
+      break;
+    }
+  }
+
+  /* Finaly call the hWNDOldProc, which handles the resize witch the
+     now changed window sizes */
+  ret = CallWindowProc( hWNDOldProc, hwnd, message, wParam, lParam );
+
+  return(ret);
+}
+
+BOOL GLAPIENTRY wglCopyContext(HGLRC hglrcSrc,HGLRC hglrcDst,UINT mask)
+{
+  return(FALSE);
+}
+
+HGLRC GLAPIENTRY wglCreateContext(HDC hdc)
+{
+  HWND hWnd;
+  WNDPROC oldProc;
+  int error;
+
+  if(ctx) {
+    SetLastError(0);
+    return(NULL);
+  }
+
+  if(!(hWnd = WindowFromDC(hdc))) {
+    SetLastError(0);
+    return(NULL);
+  }
+
+  if(curPFD == 0) {
+    SetLastError(0);
+    return(NULL);
+  }
+
+  if((oldProc = (WNDPROC)GetWindowLong(hWnd,GWL_WNDPROC)) != __wglMonitor) {
+    hWNDOldProc = oldProc;
+    SetWindowLong(hWnd,GWL_WNDPROC,(LONG)__wglMonitor);
+  }
+
+#ifndef FX_SILENT
+  freopen("MESA.LOG","w",stderr);
+#endif
+
+  ShowWindow(hWnd, SW_SHOWNORMAL);
+  SetForegroundWindow(hWnd);
+  Sleep(100); /* an hack for win95 */
+
+  if(fxQueryHardware() == GR_SSTTYPE_VOODOO) {
+    RECT cliRect;
+
+    GetClientRect(hWnd,&cliRect);
+    error = !(ctx = fxMesaCreateBestContext((GLuint)hWnd,cliRect.right,cliRect.bottom,
+                                            pix[curPFD - 1].mesaAttr));
+
+    if(!error) {
+      /* create the DIB section for windowed rendering */
+      DWORD *p;
+
+      dibWnd = hWnd;
+
+      hDC = GetDC(dibWnd);
+
+      dibBMI = (BITMAPINFO*) malloc( sizeof(BITMAPINFO) + (256*sizeof(RGBQUAD)));
+
+      memset(dibBMI,0,sizeof(BITMAPINFO) + (256*sizeof(RGBQUAD)));
+
+      dibBMI->bmiHeader.biSize                  = sizeof(BITMAPINFOHEADER);
+      dibBMI->bmiHeader.biWidth                 = ctx->width;
+      dibBMI->bmiHeader.biHeight                = -ctx->height;
+      dibBMI->bmiHeader.biPlanes                = (short)1;
+      dibBMI->bmiHeader.biBitCount              = (short)16;
+      dibBMI->bmiHeader.biCompression           = BI_BITFIELDS;
+      dibBMI->bmiHeader.biSizeImage             = 0;
+      dibBMI->bmiHeader.biXPelsPerMeter         = 0;
+      dibBMI->bmiHeader.biYPelsPerMeter         = 0;
+      dibBMI->bmiHeader.biClrUsed               = 3;
+      dibBMI->bmiHeader.biClrImportant          = 3;
+
+      p = (DWORD*)dibBMI->bmiColors;
+      p[0] = 0xF800;
+      p[1] = 0x07E0;
+      p[2] = 0x001F;
+
+      dibHBM = CreateDIBSection(hDC, dibBMI, DIB_RGB_COLORS, &dibSurfacePtr, NULL, 0);
+
+      ReleaseDC(dibWnd, hDC);
+
+      gdiWindowHackEna = (dibHBM != NULL ? GL_TRUE : GL_FALSE);
+
+      if (!getenv("MESA_WGL_FX") || !strcmp(getenv("MESA_WGL_FX"),"fullscreen"))
+        gdiWindowHack = GL_FALSE;
+      else {
+        gdiWindowHack = GL_TRUE;
+        grSstControl(GR_CONTROL_DEACTIVATE);
+      }
+    }
+  } else {
+    /* For the Voodoo Rush */
+
+    if(getenv("MESA_WGL_FX") && !strcmp(getenv("MESA_WGL_FX"),"fullscreen")) {
+      RECT cliRect;
+
+      GetClientRect(hWnd,&cliRect);
+      error = !(ctx = fxMesaCreateBestContext((GLuint)hWnd,cliRect.right,cliRect.bottom,
+                                              pix[curPFD - 1].mesaAttr));
+    } else
+      error = !(ctx = fxMesaCreateContext((GLuint)hWnd,GR_RESOLUTION_NONE,GR_REFRESH_75Hz,
+                                          pix[curPFD - 1].mesaAttr));
+  }
+
+  if(getenv("SST_DUALHEAD"))
+    haveDualHead=((atoi(getenv("SST_DUALHEAD"))==1) ? GL_TRUE:GL_FALSE);
+  else
+    haveDualHead=GL_FALSE;
+
+  if(error) {
+    SetLastError(0);
+    return(NULL);
+  }
+
+  hDC = hdc;
+  hWND = hWnd;
+
+  /* Required by the OpenGL Optimizer 1.1 (is it a Optimizer bug ?) */
+  wglMakeCurrent(hdc,(HGLRC)1);
+
+  return((HGLRC)1);
+}
+
+HGLRC GLAPIENTRY wglCreateLayerContext(HDC hdc,int iLayerPlane)
+{
+  SetLastError(0);
+  return(NULL);
+}
+
+BOOL GLAPIENTRY wglDeleteContext(HGLRC hglrc)
+{
+  if(ctx && hglrc == (HGLRC)1) {
+    if (gdiWindowHackEna) {
+      DeleteObject(dibHBM);
+      free(dibBMI);
+
+      dibSurfacePtr = NULL;
+      dibBMI = NULL;
+      dibHBM = NULL;
+      dibWnd = NULL;
+    }
+
+    fxMesaDestroyContext(ctx);
+
+    SetWindowLong(WindowFromDC(hDC),GWL_WNDPROC,(LONG)hWNDOldProc);
+
+    ctx = NULL;
+    hDC = 0;
+    return(TRUE);
+  }
+
+  SetLastError(0);
+
+  return(FALSE);
+}
+
+HGLRC GLAPIENTRY wglGetCurrentContext(VOID)
+{
+  if(ctx)
+    return((HGLRC)1);
+
+  SetLastError(0);
+  return(NULL);
+}
+
+HDC GLAPIENTRY wglGetCurrentDC(VOID)
+{
+  if(ctx)
+    return(hDC);
+
+  SetLastError(0);
+  return(NULL);
+}
+
+PROC GLAPIENTRY wglGetProcAddress(LPCSTR lpszProc)
+{
+  int           i;
+
+  /*fprintf(stderr,"fxMesa: looking for extension %s\n",lpszProc);
+    fflush(stderr);*/
+
+  for(i = 0;i < qt_ext;i++)
+    if(!strcmp(lpszProc,ext[i].name)) {
+      /*fprintf(stderr,"fxMesa: found extension %s\n",lpszProc);
+        fflush(stderr);*/
+
+      return(ext[i].proc);
+    }
+  SetLastError(0);
+  return(NULL);
+}
+
+BOOL GLAPIENTRY wglMakeCurrent(HDC hdc,HGLRC hglrc)
+{
+  if((hdc==NULL) && (hglrc==NULL))
+    return(TRUE);
+
+  if(!ctx || hglrc != (HGLRC)1 || WindowFromDC(hdc) != hWND) {
+    SetLastError(0);
+    return(FALSE);
+  }
+
+  hDC = hdc;
+
+  fxMesaMakeCurrent(ctx);
+
+  return(TRUE);
+}
+
+BOOL GLAPIENTRY wglShareLists(HGLRC hglrc1,HGLRC hglrc2)
+{
+  if(!ctx || hglrc1 != (HGLRC)1 || hglrc1 != hglrc2) {
+    SetLastError(0);
+    return(FALSE);
+  }
+
+  return(TRUE);
+}
+
+BOOL GLAPIENTRY wglUseFontBitmaps(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);
+
+  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
+}
+
+BOOL GLAPIENTRY wglUseFontBitmapsW(HDC hdc,DWORD first,DWORD count,DWORD listBase)
+{
+  return(FALSE);
+}
+
+BOOL GLAPIENTRY wglUseFontOutlinesA(HDC hdc,DWORD first,DWORD count,
+                                  DWORD listBase,FLOAT deviation,
+                                  FLOAT extrusion,int format,
+                                  LPGLYPHMETRICSFLOAT lpgmf)
+{
+  SetLastError(0);
+  return(FALSE);
+}
+
+BOOL GLAPIENTRY wglUseFontOutlinesW(HDC hdc,DWORD first,DWORD count,
+                                  DWORD listBase,FLOAT deviation,
+                                  FLOAT extrusion,int format,
+                                  LPGLYPHMETRICSFLOAT lpgmf)
+{
+  SetLastError(0);
+  return(FALSE);
+}
+
+
+BOOL GLAPIENTRY wglSwapLayerBuffers(HDC hdc,UINT fuPlanes)
+{
+  if(ctx && WindowFromDC(hdc) == hWND) {
+    fxMesaSwapBuffers();
+
+    return(TRUE);
+  }
+
+  SetLastError(0);
+  return(FALSE);
+}
+
+int GLAPIENTRY wglChoosePixelFormat(HDC hdc,
+                                  CONST PIXELFORMATDESCRIPTOR *ppfd)
+{
+  int i,best=-1,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++) {
+    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->cDepthBits > 0 && pix[i].pfd.cDepthBits == 0)
+      continue; /* need depth buffer */
+
+    if (ppfd->cAlphaBits > 0 && pix[i].pfd.cAlphaBits == 0)
+      continue; /* need alpha buffer */
+
+    if(ppfd->iPixelType == pix[i].pfd.iPixelType) {
+      best = i + 1;
+      break;
+    }
+  }
+
+  if(best == -1) {
+    SetLastError(0);
+    return(0);
+  }
+
+  return(best);
+}
+
+int GLAPIENTRY ChoosePixelFormat(HDC hdc,
+			       CONST PIXELFORMATDESCRIPTOR *ppfd)
+{
+  return wglChoosePixelFormat(hdc,ppfd);
+}
+
+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)) && (nBytes != 0))) {
+    SetLastError(0);
+    return(0);
+  }
+
+  if(nBytes != 0)
+    *ppfd = pix[iPixelFormat - 1].pfd;
+
+  return(qt_valid_pix);
+}
+
+int GLAPIENTRY DescribePixelFormat(HDC hdc,int iPixelFormat,UINT nBytes,
+				 LPPIXELFORMATDESCRIPTOR ppfd)
+{
+  return wglDescribePixelFormat(hdc,iPixelFormat,nBytes,ppfd);
+}
+
+int GLAPIENTRY wglGetPixelFormat(HDC hdc)
+{
+  if(curPFD == 0) {
+    SetLastError(0);
+    return(0);
+  }
+
+  return(curPFD);
+}
+
+int GLAPIENTRY GetPixelFormat(HDC hdc)
+{
+  return wglGetPixelFormat(hdc);
+}
+
+BOOL GLAPIENTRY wglSetPixelFormat(HDC hdc,int iPixelFormat,
+                                CONST 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);
+}
+
+BOOL GLAPIENTRY wglSwapBuffers(HDC hdc)
+{
+  if(!ctx) {
+    SetLastError(0);
+    return(FALSE);
+  }
+
+  fxMesaSwapBuffers();
+
+  if(gdiWindowHack) {
+    GLuint width=ctx->width;
+    GLuint height=ctx->height;
+
+    HDC hdcScreen      = GetDC(dibWnd);
+    HDC hdcDIBSection  = CreateCompatibleDC(hdcScreen);
+    HBITMAP holdBitmap = (HBITMAP) SelectObject(hdcDIBSection, dibHBM);
+
+    grLfbReadRegion(GR_BUFFER_FRONTBUFFER, 0, 0,
+                    width, height,
+                    width * 2,
+                    dibSurfacePtr);
+
+    /* Since the hardware is configured for GR_COLORFORMAT_ABGR the pixel data is
+     * going to come out as BGR 565, which is reverse of what we need for blitting
+     * to screen, so we need to convert it here pixel-by-pixel (ick). This loop would NOT
+     * be required if the color format was changed to GR_COLORFORMAT_ARGB, but I do
+     * not know the ramifications of that, so this will work until that is resolved.
+     *
+     * This routine CRIES out for MMX implementation, however since that's not
+     * guaranteed to be running on MMX enabled hardware so I'm not going to do
+     * that. I'm just going to try to make a reasonably efficient C
+     * version. -TAJ
+     *
+     * This routine drops frame rate by <1 fps on a 200Mhz MMX processor with a 640x480
+     * display. Obviously, it's performance hit will be higher on larger displays and
+     * less on smaller displays. To support the window-hack display this is probably fine.
+     */
+    {
+      unsigned long *pixel = dibSurfacePtr;
+      unsigned long count = (width * height) / 2;
+
+      while (count--)
+        {
+          *pixel++ = (*pixel & 0x07e007e0)                /* greens */
+            | ((*pixel & 0xf800f800) >> 11) /* swap blues */
+            | ((*pixel & 0x001f001f) << 11) /* swap reds */
+            ;
+        }
+    }
+
+    BitBlt(hdcScreen, 0, 0,
+           width, height,
+           hdcDIBSection,
+           0, 0, SRCCOPY);
+
+    ReleaseDC(dibWnd, hdcScreen);
+    SelectObject(hdcDIBSection, holdBitmap);
+    DeleteDC(hdcDIBSection);
+  }
+
+  return(TRUE);
+}
+
+BOOL GLAPIENTRY SetPixelFormat(HDC hdc, int iPixelFormat,
+                             CONST PIXELFORMATDESCRIPTOR *ppfd)
+{
+  return wglSetPixelFormat(hdc,iPixelFormat,ppfd);
+}
+
+BOOL GLAPIENTRY SwapBuffers(HDC hdc)
+{
+  return wglSwapBuffers(hdc);
+}
+
+#endif /* FX */