diff options
Diffstat (limited to 'src/mesa/drivers/windows/wgl.c')
| -rw-r--r-- | src/mesa/drivers/windows/wgl.c | 518 |
1 files changed, 518 insertions, 0 deletions
diff --git a/src/mesa/drivers/windows/wgl.c b/src/mesa/drivers/windows/wgl.c new file mode 100644 index 00000000000..d5f577dd814 --- /dev/null +++ b/src/mesa/drivers/windows/wgl.c @@ -0,0 +1,518 @@ +/* $Id: wgl.c,v 1.1 1999/08/19 00:55:42 jtg 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>
+
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#ifdef __cplusplus
+}
+#endif
+
+#include <stdio.h>
+#include <tchar.h>
+#include "wmesadef.h"
+#include "GL/wmesa.h"
+#include "types.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)glBlendFuncSeparateINGR, "glBlendFuncSeparateINGR" },
+ { (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;
+
+GLAPI BOOL GLWINAPI wglCopyContext(HGLRC hglrcSrc,HGLRC hglrcDst,UINT mask)
+{
+ return(FALSE);
+}
+
+GLAPI HGLRC GLWINAPI 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);
+}
+
+GLAPI BOOL GLWINAPI 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);
+}
+
+GLAPI HGLRC GLWINAPI wglCreateLayerContext(HDC hdc,int iLayerPlane)
+{
+ SetLastError(0);
+ return(NULL);
+}
+
+GLAPI HGLRC GLWINAPI wglGetCurrentContext(VOID)
+{
+ if (ctx_current < 0)
+ return 0;
+ else
+ return (HGLRC) wgl_ctx[ctx_current].ctx;
+}
+
+GLAPI HDC GLWINAPI wglGetCurrentDC(VOID)
+{
+ if (ctx_current < 0)
+ return 0;
+ else
+ return wgl_ctx[ctx_current].hdc;
+}
+
+GLAPI BOOL GLWINAPI 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;
+}
+
+GLAPI BOOL GLWINAPI wglShareLists(HGLRC hglrc1,HGLRC hglrc2)
+{
+ return(TRUE);
+}
+
+ +static FIXED FixedFromDouble(double d) +{ + long l = (long) (d * 65536L); + return *(FIXED *)&l; +} + + +GLAPI BOOL GLWINAPI wglUseFontBitmapsA(HDC hdc, DWORD first, + DWORD count, DWORD listBase) +{ + int i; + GLuint font_list; + DWORD size; + GLYPHMETRICS gm; + HANDLE hBits; + LPSTR lpBits; + MAT2 mat; + + if (first<0) + return FALSE; + if (count<0) + return FALSE; + if (listBase<0) + return FALSE; + + font_list = glGenLists( count ); + if(font_list == 0) + return FALSE; + + mat.eM11 = FixedFromDouble(1); + mat.eM12 = FixedFromDouble(0); + mat.eM21 = FixedFromDouble(0); + mat.eM22 = FixedFromDouble(1); + + memset(&gm,0,sizeof(gm)); + + for (i = 0; i < count; i++) + { + 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) + { + DWORD err; + err = GetLastError(); + return(FALSE); + } + + hBits = GlobalAlloc(GHND, size); + lpBits = GlobalLock(hBits); + + 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 (*lpBits == GDI_ERROR) + { + DWORD err; + err = GetLastError(); + + GlobalUnlock(hBits); + GlobalFree(hBits); + + return(FALSE); + } + + glBitmap(gm.gmBlackBoxX,gm.gmBlackBoxY, + gm.gmptGlyphOrigin.x, + gm.gmptGlyphOrigin.y, + gm.gmCellIncX,gm.gmCellIncY, + (const GLubyte * )lpBits); + + GlobalUnlock(hBits); + GlobalFree(hBits); + + glEndList( ); + } + + return TRUE; +} +
+GLAPI BOOL GLWINAPI wglUseFontBitmapsW(HDC hdc,DWORD first,DWORD count,DWORD listBase)
+{
+ return FALSE;
+}
+
+GLAPI BOOL GLWINAPI wglUseFontOutlinesA(HDC hdc,DWORD first,DWORD count,
+ DWORD listBase,FLOAT deviation,
+ FLOAT extrusion,int format,
+ LPGLYPHMETRICSFLOAT lpgmf)
+{
+ SetLastError(0);
+ return(FALSE);
+}
+
+GLAPI BOOL GLWINAPI wglUseFontOutlinesW(HDC hdc,DWORD first,DWORD count,
+ DWORD listBase,FLOAT deviation,
+ FLOAT extrusion,int format,
+ LPGLYPHMETRICSFLOAT lpgmf)
+{
+ SetLastError(0);
+ return(FALSE);
+}
+
+GLAPI BOOL GLWINAPI wglDescribeLayerPlane(HDC hdc,int iPixelFormat,
+ int iLayerPlane,UINT nBytes,
+ LPLAYERPLANEDESCRIPTOR plpd)
+{
+ SetLastError(0);
+ return(FALSE);
+}
+
+GLAPI int GLWINAPI wglSetLayerPaletteEntries(HDC hdc,int iLayerPlane,
+ int iStart,int cEntries,
+ CONST COLORREF *pcr)
+{
+ SetLastError(0);
+ return(0);
+}
+
+GLAPI int GLWINAPI wglGetLayerPaletteEntries(HDC hdc,int iLayerPlane,
+ int iStart,int cEntries,
+ COLORREF *pcr)
+{
+ SetLastError(0);
+ return(0);
+}
+
+GLAPI BOOL GLWINAPI wglRealizeLayerPalette(HDC hdc,int iLayerPlane,BOOL bRealize)
+{
+ SetLastError(0);
+ return(FALSE);
+}
+
+GLAPI BOOL GLWINAPI wglSwapLayerBuffers(HDC hdc,UINT fuPlanes)
+{
+ if( !hdc )
+ {
+ WMesaSwapBuffers();
+ return(TRUE);
+ }
+ SetLastError(0);
+ return(FALSE);
+}
+
+GLAPI int GLWINAPI 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);
+}
+
+GLAPI int GLWINAPI 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
+*/
+GLAPI PROC GLWINAPI 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);
+}
+
+GLAPI int GLWINAPI wglGetPixelFormat(HDC hdc)
+{
+ if(curPFD == 0)
+ {
+ SetLastError(0);
+ return(0);
+ }
+ return(curPFD);
+}
+
+GLAPI BOOL GLWINAPI 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);
+}
+
+GLAPI BOOL GLWINAPI 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 */
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