/* Window-specific OpenGL functions implementation. * * Copyright (c) 1999 Lionel Ulmer * Copyright (c) 2005 Raphael Junqueira * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA */ #include "config.h" #include "wine/port.h" #include #include #include #include "windef.h" #include "winbase.h" #include "winuser.h" #include "winerror.h" #include "winreg.h" #include "wingdi.h" #include "winternl.h" #include "winnt.h" #include "opengl_ext.h" #ifdef HAVE_GL_GLU_H #undef far #undef near #include #endif #include "wine/library.h" #include "wine/debug.h" WINE_DEFAULT_DEBUG_CHANNEL(wgl); WINE_DECLARE_DEBUG_CHANNEL(opengl); typedef struct wine_wgl_s { PROC WINAPI (*p_wglGetProcAddress)(LPCSTR lpszProc); void WINAPI (*p_wglDisable)(GLenum cap); void WINAPI (*p_wglEnable)(GLenum cap); void WINAPI (*p_wglGetIntegerv)(GLenum pname, GLint* params); GLboolean WINAPI (*p_wglIsEnabled)(GLenum cap); void WINAPI (*p_wglScissor)(GLint x, GLint y, GLsizei width, GLsizei height); void WINAPI (*p_wglViewport)(GLint x, GLint y, GLsizei width, GLsizei height); } wine_wgl_t; /** global wgl object */ static wine_wgl_t wine_wgl; /* x11drv GDI escapes */ #define X11DRV_ESCAPE 6789 enum x11drv_escape_codes { X11DRV_GET_DISPLAY, /* get X11 display for a DC */ X11DRV_GET_DRAWABLE, /* get current drawable for a DC */ X11DRV_GET_FONT, /* get current X font for a DC */ X11DRV_SET_DRAWABLE, /* set current drawable for a DC */ X11DRV_START_EXPOSURES, /* start graphics exposures */ X11DRV_END_EXPOSURES, /* end graphics exposures */ X11DRV_GET_DCE, /* get the DCE pointer */ X11DRV_SET_DCE, /* set the DCE pointer */ X11DRV_GET_GLX_DRAWABLE, /* get current glx drawable for a DC */ X11DRV_SYNC_PIXMAP /* sync the dibsection to its pixmap */ }; void (*wine_tsx11_lock_ptr)(void) = NULL; void (*wine_tsx11_unlock_ptr)(void) = NULL; static HMODULE opengl32_handle; static char internal_gl_disabled_extensions[512]; static char* internal_gl_extensions = NULL; typedef struct wine_glcontext { HDC hdc; XVisualInfo *vis; GLXFBConfig fb_conf; GLXContext ctx; BOOL do_escape; /* ... more stuff here */ } Wine_GLContext; void enter_gl(void) { Wine_GLContext *curctx = (Wine_GLContext *) NtCurrentTeb()->glContext; if (curctx && curctx->do_escape) { enum x11drv_escape_codes escape = X11DRV_SYNC_PIXMAP; ExtEscape(curctx->hdc, X11DRV_ESCAPE, sizeof(escape), (LPCSTR)&escape, 0, NULL); } wine_tsx11_lock_ptr(); return; } const GLubyte * WINAPI wine_glGetString( GLenum name ); /*********************************************************************** * wglCreateLayerContext (OPENGL32.@) */ HGLRC WINAPI wglCreateLayerContext(HDC hdc, int iLayerPlane) { TRACE("(%p,%d)\n", hdc, iLayerPlane); if (iLayerPlane == 0) { return wglCreateContext(hdc); } FIXME(" no handler for layer %d\n", iLayerPlane); return NULL; } /*********************************************************************** * wglCopyContext (OPENGL32.@) */ BOOL WINAPI wglCopyContext(HGLRC hglrcSrc, HGLRC hglrcDst, UINT mask) { FIXME("(%p,%p,%d)\n", hglrcSrc, hglrcDst, mask); return FALSE; } /*********************************************************************** * wglDescribeLayerPlane (OPENGL32.@) */ BOOL WINAPI wglDescribeLayerPlane(HDC hdc, int iPixelFormat, int iLayerPlane, UINT nBytes, LPLAYERPLANEDESCRIPTOR plpd) { FIXME("(%p,%d,%d,%d,%p)\n", hdc, iPixelFormat, iLayerPlane, nBytes, plpd); return FALSE; } /*********************************************************************** * wglGetLayerPaletteEntries (OPENGL32.@) */ int WINAPI wglGetLayerPaletteEntries(HDC hdc, int iLayerPlane, int iStart, int cEntries, const COLORREF *pcr) { FIXME("(): stub !\n"); return 0; } static int compar(const void *elt_a, const void *elt_b) { return strcmp(((const OpenGL_extension *) elt_a)->name, ((const OpenGL_extension *) elt_b)->name); } /* Check if a GL extension is supported */ static BOOL is_extension_supported(const char* extension) { const char *gl_ext_string = (const char*)wine_glGetString(GL_EXTENSIONS); TRACE("Checking for extension '%s'\n", extension); if(!gl_ext_string) { ERR("No OpenGL extensions found, check if your OpenGL setup is correct!\n"); return FALSE; } /* We use the GetProcAddress function from the display driver to retrieve function pointers * for OpenGL and WGL extensions. In case of winex11.drv the OpenGL extension lookup is done * using glXGetProcAddress. This function is quite unreliable in the sense that its specs don't * require the function to return NULL when a extension isn't found. For this reason we check * if the OpenGL extension required for the function we are looking up is supported. */ /* Check if the extension is part of the GL extension string to see if it is supported. */ if(strstr(gl_ext_string, extension) != NULL) return TRUE; /* In general an OpenGL function starts as an ARB/EXT extension and at some stage * it becomes part of the core OpenGL library and can be reached without the ARB/EXT * suffix as well. In the extension table, these functions contain GL_VERSION_major_minor. * Check if we are searching for a core GL function */ if(strncmp(extension, "GL_VERSION_", 11) == 0) { const GLubyte *gl_version = glGetString(GL_VERSION); const char *version = extension + 11; /* Move past 'GL_VERSION_' */ if(!gl_version) { ERR("Error no OpenGL version found,\n"); return FALSE; } /* Compare the major/minor version numbers of the native OpenGL library and what is required by the function. * The gl_version string is guaranteed to have at least a major/minor and sometimes it has a release number as well. */ if( (gl_version[0] >= version[0]) || ((gl_version[0] == version[0]) && (gl_version[2] >= version[2])) ) { return TRUE; } WARN("The function requires OpenGL version '%c.%c' while your drivers only provide '%c.%c'\n", version[0], version[2], gl_version[0], gl_version[2]); } return FALSE; } /*********************************************************************** * wglGetProcAddress (OPENGL32.@) */ PROC WINAPI wglGetProcAddress(LPCSTR lpszProc) { void *local_func; OpenGL_extension ext; const OpenGL_extension *ext_ret; TRACE("(%s)\n", lpszProc); if(lpszProc == NULL) return NULL; /* First, look if it's not already defined in the 'standard' OpenGL functions */ if ((local_func = GetProcAddress(opengl32_handle, lpszProc)) != NULL) { TRACE(" found function in 'standard' OpenGL functions (%p)\n", local_func); return local_func; } /* After that, search in the thunks to find the real name of the extension */ ext.name = lpszProc; ext_ret = (const OpenGL_extension *) bsearch(&ext, extension_registry, extension_registry_size, sizeof(OpenGL_extension), compar); /* If nothing was found, we are looking for a WGL extension or an unknown GL extension. */ if (ext_ret == NULL) { /* If the function name starts with a w it is a WGL extension */ if(lpszProc[0] == 'w') return wine_wgl.p_wglGetProcAddress(lpszProc); /* We are dealing with an unknown GL extension. */ WARN("Extension '%s' not defined in opengl32.dll's function table!\n", lpszProc); return NULL; } else { /* We are looking for an OpenGL extension */ /* Check if the GL extension required by the function is available */ if(!is_extension_supported(ext_ret->extension)) { WARN("Extension '%s' required by function '%s' not supported!\n", ext_ret->extension, lpszProc); return NULL; } local_func = wine_wgl.p_wglGetProcAddress(ext_ret->name); /* After that, look at the extensions defined in the Linux OpenGL library */ if (local_func == NULL) { char buf[256]; void *ret = NULL; /* Remove the 3 last letters (EXT, ARB, ...). I know that some extensions have more than 3 letters (MESA, NV, INTEL, ...), but this is only a stop-gap measure to fix buggy OpenGL drivers (moreover, it is only useful for old 1.0 apps that query the glBindTextureEXT extension). */ memcpy(buf, ext_ret->name, strlen(ext_ret->name) - 3); buf[strlen(ext_ret->name) - 3] = '\0'; TRACE(" extension not found in the Linux OpenGL library, checking against libGL bug with %s..\n", buf); ret = GetProcAddress(opengl32_handle, buf); if (ret != NULL) { TRACE(" found function in main OpenGL library (%p) !\n", ret); } else { WARN("Did not find function %s (%s) in your OpenGL library !\n", lpszProc, ext_ret->name); } return ret; } else { TRACE(" returning function (%p)\n", ext_ret->func); extension_funcs[ext_ret - extension_registry] = local_func; return ext_ret->func; } } } /*********************************************************************** * wglRealizeLayerPalette (OPENGL32.@) */ BOOL WINAPI wglRealizeLayerPalette(HDC hdc, int iLayerPlane, BOOL bRealize) { FIXME("()\n"); return FALSE; } /*********************************************************************** * wglSetLayerPaletteEntries (OPENGL32.@) */ int WINAPI wglSetLayerPaletteEntries(HDC hdc, int iLayerPlane, int iStart, int cEntries, const COLORREF *pcr) { FIXME("(): stub !\n"); return 0; } /*********************************************************************** * wglSwapLayerBuffers (OPENGL32.@) */ BOOL WINAPI wglSwapLayerBuffers(HDC hdc, UINT fuPlanes) { TRACE_(opengl)("(%p, %08x)\n", hdc, fuPlanes); if (fuPlanes & WGL_SWAP_MAIN_PLANE) { if (!SwapBuffers(hdc)) return FALSE; fuPlanes &= ~WGL_SWAP_MAIN_PLANE; } if (fuPlanes) { WARN("Following layers unhandled : %08x\n", fuPlanes); } return TRUE; } #ifdef HAVE_GL_GLU_H static void fixed_to_double(POINTFX fixed, UINT em_size, GLdouble vertex[3]) { vertex[0] = (fixed.x.value + (GLdouble)fixed.x.fract / (1 << 16)) / em_size; vertex[1] = (fixed.y.value + (GLdouble)fixed.y.fract / (1 << 16)) / em_size; vertex[2] = 0.0; } static void tess_callback_vertex(GLvoid *vertex) { GLdouble *dbl = vertex; TRACE("%f, %f, %f\n", dbl[0], dbl[1], dbl[2]); glVertex3dv(vertex); } static void tess_callback_begin(GLenum which) { TRACE("%d\n", which); glBegin(which); } static void tess_callback_end(void) { TRACE("\n"); glEnd(); } /*********************************************************************** * wglUseFontOutlines_common */ static BOOL WINAPI wglUseFontOutlines_common(HDC hdc, DWORD first, DWORD count, DWORD listBase, FLOAT deviation, FLOAT extrusion, int format, LPGLYPHMETRICSFLOAT lpgmf, BOOL unicode) { UINT glyph; const MAT2 identity = {{0,1},{0,0},{0,0},{0,1}}; GLUtesselator *tess; LOGFONTW lf; HFONT old_font, unscaled_font; UINT em_size = 1024; RECT rc; TRACE("(%p, %d, %d, %d, %f, %f, %d, %p, %s)\n", hdc, first, count, listBase, deviation, extrusion, format, lpgmf, unicode ? "W" : "A"); ENTER_GL(); tess = gluNewTess(); if(tess) { gluTessCallback(tess, GLU_TESS_VERTEX, (_GLUfuncptr)tess_callback_vertex); gluTessCallback(tess, GLU_TESS_BEGIN, (_GLUfuncptr)tess_callback_begin); gluTessCallback(tess, GLU_TESS_END, tess_callback_end); } LEAVE_GL(); if(!tess) return FALSE; GetObjectW(GetCurrentObject(hdc, OBJ_FONT), sizeof(lf), &lf); rc.left = rc.right = rc.bottom = 0; rc.top = em_size; DPtoLP(hdc, (POINT*)&rc, 2); lf.lfHeight = -abs(rc.top - rc.bottom); lf.lfOrientation = lf.lfEscapement = 0; unscaled_font = CreateFontIndirectW(&lf); old_font = SelectObject(hdc, unscaled_font); for (glyph = first; glyph < first + count; glyph++) { DWORD needed; GLYPHMETRICS gm; BYTE *buf; TTPOLYGONHEADER *pph; TTPOLYCURVE *ppc; GLdouble *vertices; if(unicode) needed = GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity); else needed = GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, 0, NULL, &identity); if(needed == GDI_ERROR) goto error; buf = HeapAlloc(GetProcessHeap(), 0, needed); vertices = HeapAlloc(GetProcessHeap(), 0, needed / sizeof(POINTFX) * 3 * sizeof(GLdouble)); if(unicode) GetGlyphOutlineW(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity); else GetGlyphOutlineA(hdc, glyph, GGO_NATIVE, &gm, needed, buf, &identity); TRACE("glyph %d\n", glyph); if(lpgmf) { lpgmf->gmfBlackBoxX = (float)gm.gmBlackBoxX / em_size; lpgmf->gmfBlackBoxY = (float)gm.gmBlackBoxY / em_size; lpgmf->gmfptGlyphOrigin.x = (float)gm.gmptGlyphOrigin.x / em_size; lpgmf->gmfptGlyphOrigin.y = (float)gm.gmptGlyphOrigin.y / em_size; lpgmf->gmfCellIncX = (float)gm.gmCellIncX / em_size; lpgmf->gmfCellIncY = (float)gm.gmCellIncY / em_size; TRACE("%fx%f at %f,%f inc %f,%f\n", lpgmf->gmfBlackBoxX, lpgmf->gmfBlackBoxY, lpgmf->gmfptGlyphOrigin.x, lpgmf->gmfptGlyphOrigin.y, lpgmf->gmfCellIncX, lpgmf->gmfCellIncY); lpgmf++; } ENTER_GL(); glNewList(listBase++, GL_COMPILE); gluTessBeginPolygon(tess, NULL); pph = (TTPOLYGONHEADER*)buf; while((BYTE*)pph < buf + needed) { TRACE("\tstart %d, %d\n", pph->pfxStart.x.value, pph->pfxStart.y.value); gluTessBeginContour(tess); fixed_to_double(pph->pfxStart, em_size, vertices); gluTessVertex(tess, vertices, vertices); vertices += 3; ppc = (TTPOLYCURVE*)((char*)pph + sizeof(*pph)); while((char*)ppc < (char*)pph + pph->cb) { int i; switch(ppc->wType) { case TT_PRIM_LINE: for(i = 0; i < ppc->cpfx; i++) { TRACE("\t\tline to %d, %d\n", ppc->apfx[i].x.value, ppc->apfx[i].y.value); fixed_to_double(ppc->apfx[i], em_size, vertices); gluTessVertex(tess, vertices, vertices); vertices += 3; } break; case TT_PRIM_QSPLINE: for(i = 0; i < ppc->cpfx/2; i++) { /* FIXME just connecting the control points for now */ TRACE("\t\tcurve %d,%d %d,%d\n", ppc->apfx[i * 2].x.value, ppc->apfx[i * 3].y.value, ppc->apfx[i * 2 + 1].x.value, ppc->apfx[i * 3 + 1].y.value); fixed_to_double(ppc->apfx[i * 2], em_size, vertices); gluTessVertex(tess, vertices, vertices); vertices += 3; fixed_to_double(ppc->apfx[i * 2 + 1], em_size, vertices); gluTessVertex(tess, vertices, vertices); vertices += 3; } break; default: ERR("\t\tcurve type = %d\n", ppc->wType); gluTessEndContour(tess); goto error_in_list; } ppc = (TTPOLYCURVE*)((char*)ppc + sizeof(*ppc) + (ppc->cpfx - 1) * sizeof(POINTFX)); } gluTessEndContour(tess); pph = (TTPOLYGONHEADER*)((char*)pph + pph->cb); } error_in_list: gluTessEndPolygon(tess); glTranslated((GLdouble)gm.gmCellIncX / em_size, (GLdouble)gm.gmCellIncY / em_size, 0.0); glEndList(); LEAVE_GL(); HeapFree(GetProcessHeap(), 0, buf); HeapFree(GetProcessHeap(), 0, vertices); } error: DeleteObject(SelectObject(hdc, old_font)); gluDeleteTess(tess); return TRUE; } #else /* HAVE_GL_GLU_H */ static BOOL WINAPI wglUseFontOutlines_common(HDC hdc, DWORD first, DWORD count, DWORD listBase, FLOAT deviation, FLOAT extrusion, int format, LPGLYPHMETRICSFLOAT lpgmf, BOOL unicode) { FIXME("Unable to compile in wglUseFontOutlines support without GL/glu.h\n"); return FALSE; } #endif /* HAVE_GL_GLU_H */ /*********************************************************************** * wglUseFontOutlinesA (OPENGL32.@) */ BOOL WINAPI wglUseFontOutlinesA(HDC hdc, DWORD first, DWORD count, DWORD listBase, FLOAT deviation, FLOAT extrusion, int format, LPGLYPHMETRICSFLOAT lpgmf) { return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, FALSE); } /*********************************************************************** * wglUseFontOutlinesW (OPENGL32.@) */ BOOL WINAPI wglUseFontOutlinesW(HDC hdc, DWORD first, DWORD count, DWORD listBase, FLOAT deviation, FLOAT extrusion, int format, LPGLYPHMETRICSFLOAT lpgmf) { return wglUseFontOutlines_common(hdc, first, count, listBase, deviation, extrusion, format, lpgmf, TRUE); } /*********************************************************************** * glEnable (OPENGL32.@) */ void WINAPI wine_glEnable( GLenum cap ) { TRACE("(%d)\n", cap ); wine_wgl.p_wglEnable(cap); } /*********************************************************************** * glIsEnabled (OPENGL32.@) */ GLboolean WINAPI wine_glIsEnabled( GLenum cap ) { TRACE("(%d)\n", cap ); return wine_wgl.p_wglIsEnabled(cap); } /*********************************************************************** * glDisable (OPENGL32.@) */ void WINAPI wine_glDisable( GLenum cap ) { TRACE("(%d)\n", cap ); wine_wgl.p_wglDisable(cap); } /*********************************************************************** * glScissor (OPENGL32.@) */ void WINAPI wine_glScissor( GLint x, GLint y, GLsizei width, GLsizei height ) { TRACE("(%d, %d, %d, %d)\n", x, y, width, height ); wine_wgl.p_wglScissor(x, y, width, height); } /*********************************************************************** * glViewport (OPENGL32.@) */ void WINAPI wine_glViewport( GLint x, GLint y, GLsizei width, GLsizei height ) { TRACE("(%d, %d, %d, %d)\n", x, y, width, height ); wine_wgl.p_wglViewport(x, y, width, height); } /*********************************************************************** * glGetString (OPENGL32.@) */ const GLubyte * WINAPI wine_glGetString( GLenum name ) { const GLubyte *ret; const char* GL_Extensions = NULL; if (GL_EXTENSIONS != name) { ENTER_GL(); ret = glGetString(name); LEAVE_GL(); return ret; } if (NULL == internal_gl_extensions) { ENTER_GL(); GL_Extensions = (const char *) glGetString(GL_EXTENSIONS); if (GL_Extensions) { size_t len = strlen(GL_Extensions); internal_gl_extensions = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, len + 2); TRACE("GL_EXTENSIONS reported:\n"); while (*GL_Extensions != 0x00) { const char* Start = GL_Extensions; char ThisExtn[256]; while (*GL_Extensions != ' ' && *GL_Extensions != 0x00) { GL_Extensions++; } memcpy(ThisExtn, Start, (GL_Extensions - Start)); ThisExtn[GL_Extensions - Start] = 0; TRACE("- %s:", ThisExtn); /* test if supported API is disabled by config */ if (NULL == strstr(internal_gl_disabled_extensions, ThisExtn)) { strcat(internal_gl_extensions, " "); strcat(internal_gl_extensions, ThisExtn); TRACE(" active\n"); } else { TRACE(" deactived (by config)\n"); } if (*GL_Extensions == ' ') GL_Extensions++; } } LEAVE_GL(); } return (const GLubyte *) internal_gl_extensions; } /*********************************************************************** * glGetIntegerv (OPENGL32.@) */ void WINAPI wine_glGetIntegerv( GLenum pname, GLint* params ) { wine_wgl.p_wglGetIntegerv(pname, params); } /* No need to load any other libraries as according to the ABI, libGL should be self-sufficient and include all dependencies */ #ifndef SONAME_LIBGL #define SONAME_LIBGL "libGL.so" #endif /* This is for brain-dead applications that use OpenGL functions before even creating a rendering context.... */ static BOOL process_attach(void) { HMODULE mod_x11, mod_gdi32; DWORD size = sizeof(internal_gl_disabled_extensions); HKEY hkey = 0; GetDesktopWindow(); /* make sure winex11 is loaded (FIXME) */ mod_x11 = GetModuleHandleA( "winex11.drv" ); mod_gdi32 = GetModuleHandleA( "gdi32.dll" ); if (!mod_x11 || !mod_gdi32) { ERR("X11DRV or GDI32 not loaded. Cannot create default context.\n"); return FALSE; } wine_tsx11_lock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_lock" ); wine_tsx11_unlock_ptr = (void *)GetProcAddress( mod_x11, "wine_tsx11_unlock" ); wine_wgl.p_wglGetProcAddress = (void *)GetProcAddress(mod_gdi32, "wglGetProcAddress"); /* Interal WGL function */ wine_wgl.p_wglDisable = (void *)wine_wgl.p_wglGetProcAddress("wglDisable"); wine_wgl.p_wglEnable = (void *)wine_wgl.p_wglGetProcAddress("wglEnable"); wine_wgl.p_wglGetIntegerv = (void *)wine_wgl.p_wglGetProcAddress("wglGetIntegerv"); wine_wgl.p_wglIsEnabled = (void *)wine_wgl.p_wglGetProcAddress("wglIsEnabled"); wine_wgl.p_wglScissor = (void *)wine_wgl.p_wglGetProcAddress("wglScissor"); wine_wgl.p_wglViewport = (void *)wine_wgl.p_wglGetProcAddress("wglViewport"); internal_gl_disabled_extensions[0] = 0; if (!RegOpenKeyA( HKEY_CURRENT_USER, "Software\\Wine\\OpenGL", &hkey)) { if (!RegQueryValueExA( hkey, "DisabledExtensions", 0, NULL, (LPBYTE)internal_gl_disabled_extensions, &size)) { TRACE("found DisabledExtensions=\"%s\"\n", internal_gl_disabled_extensions); } RegCloseKey(hkey); } return TRUE; } /**********************************************************************/ static void process_detach(void) { HeapFree(GetProcessHeap(), 0, internal_gl_extensions); } /*********************************************************************** * OpenGL initialisation routine */ BOOL WINAPI DllMain( HINSTANCE hinst, DWORD reason, LPVOID reserved ) { switch(reason) { case DLL_PROCESS_ATTACH: opengl32_handle = hinst; DisableThreadLibraryCalls(hinst); return process_attach(); case DLL_PROCESS_DETACH: process_detach(); break; } return TRUE; }