Module: wine Branch: master Commit: 496161453cb96b12d0536a25bbe918f940404a56 URL: http://source.winehq.org/git/?p=wine.git;a=commit;h=496161453cb96b12d0536a25...
Author: Roderick Colenbrander thunderbird2k@gmx.net Date: Sun Aug 27 23:10:32 2006 +0200
winex11.drv: Import ConvertPixelFormatWGLtoGLX from opengl32.
---
dlls/winex11.drv/opengl.c | 94 ++++++++++++++++++++++++++++++--------------- 1 files changed, 62 insertions(+), 32 deletions(-)
diff --git a/dlls/winex11.drv/opengl.c b/dlls/winex11.drv/opengl.c index 2fb2011..fb0062d 100644 --- a/dlls/winex11.drv/opengl.c +++ b/dlls/winex11.drv/opengl.c @@ -173,41 +173,69 @@ sym_not_found: return FALSE; }
-static BOOL get_fbconfig_from_main_visual(int *fmt_id, int *fmt_index) +/* GLX can advertise dozens of different pixelformats including offscreen and onscreen ones. + * In our WGL implementation we only support a subset of these formats namely the format of + * Wine's main visual and offscreen formats (if they are available). + * This function converts a WGL format to its corresponding GLX one. It returns the index (zero-based) + * into the GLX FB config table and it returns the number of supported WGL formats in fmt_count. + */ +static BOOL ConvertPixelFormatWGLtoGLX(Display *display, int iPixelFormat, int *fmt_index, int *fmt_count) { + int res = FALSE; + int i = 0; + GLXFBConfig* cfgs = NULL; int nCfgs = 0; int tmp_fmt_id = 0; int tmp_vis_id = 0; - int i = 0; - GLXFBConfig* cfgs = NULL; + int nFormats = 1; /* Start at 1 as we allways have a main visual */ + VisualID visualid = 0;
- /* Retrieve the visualid from our main visual */ - VisualID visualid = XVisualIDFromVisual(visual); + /* Request to look up the format of the main visual when iPixelFormat = 1 */ + if(iPixelFormat == 1) visualid = XVisualIDFromVisual(visual);
- cfgs = pglXChooseFBConfig(gdi_display, DefaultScreen(gdi_display), NULL, &nCfgs); + /* As mentioned in various parts of the code only the format of the main visual can be used for onscreen rendering. + * Next to this format there are also so called offscreen rendering formats (used for pbuffers) which can be supported + * because they don't need a visual. Below we use glXGetFBConfigs instead of glXChooseFBConfig to enumerate the fb configurations + * bas this call lists both types of formats instead of only onscreen ones. */ + cfgs = pglXGetFBConfigs(display, DefaultScreen(display), &nCfgs); if (NULL == cfgs || 0 == nCfgs) { - ERR("glXChooseFBConfig returns NULL (glError: %d)\n", pglGetError()); + ERR("glXChooseFBConfig returns NULL\n"); if(cfgs != NULL) XFree(cfgs); return FALSE; }
- /* Walk through all FB configurations to retrieve the FB configuration matching our visual */ + /* Find the requested offscreen format and count the number of offscreen formats */ for(i=0; i<nCfgs; i++) { - pglXGetFBConfigAttrib(gdi_display, cfgs[i], GLX_FBCONFIG_ID, &tmp_fmt_id); - pglXGetFBConfigAttrib(gdi_display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id); - if(tmp_vis_id == visualid) { - *fmt_id = tmp_fmt_id; - *fmt_index = i + 1; /* Use a one based index, iPixelFormat uses that too */ - TRACE("Found FBCONFIG_ID 0x%x at index %d for VISUAL_ID 0x%x\n", *fmt_id, *fmt_index, tmp_vis_id); - if(cfgs != NULL) XFree(cfgs); - return TRUE; + pglXGetFBConfigAttrib(display, cfgs[i], GLX_VISUAL_ID, &tmp_vis_id); + pglXGetFBConfigAttrib(display, cfgs[i], GLX_FBCONFIG_ID, &tmp_fmt_id); + + /* We are looking up the GLX index of our main visual and have found it :) */ + if(iPixelFormat == 1 && visualid == tmp_vis_id) { + *fmt_index = i; + TRACE("Found FBCONFIG_ID 0x%x at index %d for VISUAL_ID 0x%x\n", tmp_fmt_id, *fmt_index, tmp_vis_id); + res = TRUE; + } + /* We found an offscreen rendering format :) */ + else if(tmp_vis_id == 0) { + nFormats++; + TRACE("Checking offscreen format FBCONFIG_ID 0x%x at index %d\n", tmp_fmt_id, i); + + if(iPixelFormat == nFormats) { + *fmt_index = i; + TRACE("Found offscreen format FBCONFIG_ID 0x%x corresponding to iPixelFormat %d at GLX index %d\n", tmp_fmt_id, iPixelFormat, i); + res = TRUE; + } } } - - ERR("Can't find a matching FBCONFIG_ID for VISUAL_ID 0x%lx!\n", visualid); + *fmt_count = nFormats; + TRACE("Number of offscreen formats: %d; returning index: %d\n", *fmt_count, *fmt_index);
if(cfgs != NULL) XFree(cfgs); - return FALSE; + + if(res == FALSE && iPixelFormat == 1) + ERR("Can't find a matching FBCONFIG_ID for VISUAL_ID 0x%lx!\n", visualid); + + return res; }
/** @@ -220,7 +248,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV GLXFBConfig* cfgs = NULL; int ret = 0; int nCfgs = 0; - int fmt_id = 0; + int value = 0; int fmt_index = 0;
if (!has_opengl()) { @@ -248,7 +276,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV }
/* In case an fbconfig was found, check if it matches to the requirements of the ppfd */ - if(!get_fbconfig_from_main_visual(&fmt_id, &fmt_index)) { + if(!ConvertPixelFormatWGLtoGLX(gdi_display, 1 /* main visual */, &fmt_index, &value)) { ERR("Can't find a matching FBCONFIG_ID for VISUAL_ID 0x%lx!\n", visual->visualid); } else { int dwFlags = 0; @@ -256,7 +284,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV int value = 0;
/* Pixel type */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_RENDER_TYPE, &value); + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_RENDER_TYPE, &value); if (value & GLX_RGBA_BIT) iPixelType = PFD_TYPE_RGBA; else @@ -267,7 +295,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV }
/* Doublebuffer */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_DOUBLEBUFFER, &value); if (value) dwFlags |= PFD_DOUBLEBUFFER; + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_DOUBLEBUFFER, &value); if (value) dwFlags |= PFD_DOUBLEBUFFER; if (!(ppfd->dwFlags & PFD_DOUBLEBUFFER_DONTCARE)) { if ((ppfd->dwFlags & PFD_DOUBLEBUFFER) != (dwFlags & PFD_DOUBLEBUFFER)) { goto choose_exit; @@ -275,7 +303,7 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV }
/* Stereo */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_STEREO, &value); if (value) dwFlags |= PFD_STEREO; + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_STEREO, &value); if (value) dwFlags |= PFD_STEREO; if (!(ppfd->dwFlags & PFD_STEREO_DONTCARE)) { if ((ppfd->dwFlags & PFD_STEREO) != (dwFlags & PFD_STEREO)) { goto choose_exit; @@ -283,25 +311,25 @@ int X11DRV_ChoosePixelFormat(X11DRV_PDEV }
/* Alpha bits */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_ALPHA_SIZE, &value); + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_ALPHA_SIZE, &value); if (ppfd->iPixelType==PFD_TYPE_RGBA && ppfd->cAlphaBits && !value) { goto choose_exit; }
/* Depth bits */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_DEPTH_SIZE, &value); + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_DEPTH_SIZE, &value); if (ppfd->cDepthBits && !value) { goto choose_exit; }
/* Stencil bits */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_STENCIL_SIZE, &value); + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_STENCIL_SIZE, &value); if (ppfd->cStencilBits && !value) { goto choose_exit; }
/* Aux buffers */ - pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index - 1], GLX_AUX_BUFFERS, &value); + pglXGetFBConfigAttrib(gdi_display, cfgs[fmt_index], GLX_AUX_BUFFERS, &value); if (ppfd->cAuxBuffers && !value) { goto choose_exit; } @@ -337,6 +365,7 @@ int X11DRV_DescribePixelFormat(X11DRV_PD GLXFBConfig cur; int nCfgs = 0; int ret = 0; + int fmt_index = 0;
if (!has_opengl()) { ERR("No libGL on this box - disabling OpenGL support !\n"); @@ -382,13 +411,13 @@ int X11DRV_DescribePixelFormat(X11DRV_PD }
/* Retrieve the index in the FBConfig table corresponding to the visual ID from the main visual */ - if(!get_fbconfig_from_main_visual(&value, &iPixelFormat)) { + if(!ConvertPixelFormatWGLtoGLX(gdi_display, iPixelFormat, &fmt_index, &value)) { ERR("Can't find a valid pixel format index from the main visual, expect problems!\n"); return 0; }
ret = nCfgs; - cur = cfgs[iPixelFormat - 1]; + cur = cfgs[fmt_index];
memset(ppfd, 0, sizeof(PIXELFORMATDESCRIPTOR)); ppfd->nSize = sizeof(PIXELFORMATDESCRIPTOR); @@ -508,8 +537,9 @@ BOOL X11DRV_SetPixelFormat(X11DRV_PDEVIC GLXFBConfig cur_cfg; int value; int gl_test = 0; + int fmt_index = 0;
- if(!get_fbconfig_from_main_visual(&value, &iPixelFormat)) { + if(!ConvertPixelFormatWGLtoGLX(gdi_display, iPixelFormat, &fmt_index, &value)) { ERR("Can't find a valid pixel format index from the main visual, expect problems!\n"); return TRUE; /* Return true because the SetPixelFormat stuff itself passed */ } @@ -531,7 +561,7 @@ BOOL X11DRV_SetPixelFormat(X11DRV_PDEVIC TRACE(" - HEIGHT as %d\n", tmp); */ cfgs_fmt = pglXGetFBConfigs(gdi_display, DefaultScreen(gdi_display), &nCfgs_fmt); - cur_cfg = cfgs_fmt[iPixelFormat - 1]; + cur_cfg = cfgs_fmt[fmt_index]; gl_test = pglXGetFBConfigAttrib(gdi_display, cur_cfg, GLX_FBCONFIG_ID, &value); if (gl_test) { ERR("Failed to retrieve FBCONFIG_ID from GLXFBConfig, expect problems.\n");