From ee49b108be991a90e1fd1670c52193433a7fb908 Mon Sep 17 00:00:00 2001 From: marha Date: Tue, 8 Dec 2009 13:34:29 +0000 Subject: Solved problem is using the wrong parameters in the release dc function calls. --- xorg-server/hw/xwin/glx/indirect.c | 4589 ++++++++++++++++++------------------ 1 file changed, 2295 insertions(+), 2294 deletions(-) (limited to 'xorg-server/hw/xwin/glx') diff --git a/xorg-server/hw/xwin/glx/indirect.c b/xorg-server/hw/xwin/glx/indirect.c index 252e5993e..b356cc8a5 100644 --- a/xorg-server/hw/xwin/glx/indirect.c +++ b/xorg-server/hw/xwin/glx/indirect.c @@ -1,2294 +1,2295 @@ -/* - * File: indirect.c - * Purpose: A GLX implementation that uses Windows OpenGL library - * - * Authors: Alexander Gottwald - * Jon TURNEY - * - * Copyright (c) Jon TURNEY 2009 - * Copyright (c) Alexander Gottwald 2004 - * - * Portions of this file are copied from GL/apple/indirect.c, - * which contains the following copyright: - * - * Copyright (c) 2007, 2008, 2009 Apple Inc. - * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. - * Copyright (c) 2002 Greg Parker. All Rights Reserved. - * - * Portions of this file are copied from Mesa's xf86glx.c, - * which contains the following copyright: - * - * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. - * All Rights Reserved. - * - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER - * DEALINGS IN THE SOFTWARE. - */ - -/* - TODO: - - hook up remaining unimplemented extensions - - research what guarantees glXWaitX, glXWaitGL are supposed to offer, and implement then - using GdiFlush and/or glFinish - - pbuffer clobbering: we don't get async notification, but can we arrange to emit the - event when we notice it's been clobbered? at the very least, check if it's been clobbered - before using it? - - are the __GLXConfig * we get handed back ones we are made (so we can extend the structure - with privates?) Or are they created inside the GLX core as well? -*/ - -/* - MSDN clarifications: - - It says SetPixelFormat()'s PIXELFORMATDESCRIPTOR pointer argument has no effect - except on metafiles, this seems to mean that as it's ok to supply NULL if the DC - is not for a metafile - - wglMakeCurrent ignores the hdc if hglrc is NULL, so wglMakeCurrent(NULL, NULL) - is used to make no context current - -*/ - -#ifdef HAVE_XWIN_CONFIG_H -#include -#endif - -#include "glwindows.h" -#include -#include -#include -#include -#include - -#include -#include -#include "win.h" - -extern Bool g_fXdmcpEnabled; -extern Bool g_fNativeGl; - -#define NUM_ELEMENTS(x) (sizeof(x)/ sizeof(x[1])) - -/* ---------------------------------------------------------------------- */ -/* - * structure definitions - */ - -typedef struct __GLXWinContext __GLXWinContext; -typedef struct __GLXWinDrawable __GLXWinDrawable; -typedef struct __GLXWinScreen glxWinScreen; -typedef struct __GLXWinConfig GLXWinConfig; - -struct __GLXWinContext { - __GLXcontext base; - HGLRC ctx; /* Windows GL Context */ - __GLXWinContext *shareContext; /* Context with which we will share display lists and textures */ - HWND hwnd; /* For detecting when HWND has changed */ - BOOL GlCtxWnd; /* TRUE when we should destroy the window when the context is destroyed. */ -}; - -struct __GLXWinDrawable -{ - __GLXdrawable base; - __GLXWinContext *drawContext; - __GLXWinContext *readContext; - - /* If this drawable is GLX_DRAWABLE_PBUFFER */ - HPBUFFERARB hPbuffer; - - /* If this drawable is GLX_DRAWABLE_PIXMAP */ - HDC dibDC; - HBITMAP hDIB; - HBITMAP hOldDIB; /* original DIB for DC */ - void *pOldBits; /* original pBits for this drawable's pixmap */ -}; - -struct __GLXWinScreen -{ - __GLXscreen base; - - /* Supported GLX extensions */ - unsigned char glx_enable_bits[__GLX_EXT_BYTES]; - - Bool has_WGL_ARB_multisample; - Bool has_WGL_ARB_pixel_format; - Bool has_WGL_ARB_pbuffer; - Bool has_WGL_ARB_render_texture; - - /* wrapped screen functions */ - RealizeWindowProcPtr RealizeWindow; - UnrealizeWindowProcPtr UnrealizeWindow; - CopyWindowProcPtr CopyWindow; - PositionWindowProcPtr PositionWindow; -}; - -struct __GLXWinConfig -{ - __GLXconfig base; - int pixelFormatIndex; -}; - -/* ---------------------------------------------------------------------- */ -/* - * Various debug helpers - */ - -#define GLWIN_DEBUG_HWND(hwnd) \ - if (glxWinDebugSettings.dumpHWND) { \ - char buffer[1024]; \ - if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; \ - GLWIN_DEBUG_MSG("Got HWND %p for window '%s'", hwnd, buffer); \ - } - -glxWinDebugSettingsRec glxWinDebugSettings = { 0, 0, 0, 0, 0, 0}; - -static void glxWinInitDebugSettings(void) -{ - char *envptr; - - envptr = getenv("GLWIN_ENABLE_DEBUG"); - if (envptr != NULL) - glxWinDebugSettings.enableDebug = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_ENABLE_TRACE"); - if (envptr != NULL) - glxWinDebugSettings.enableTrace = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_DUMP_PFD"); - if (envptr != NULL) - glxWinDebugSettings.dumpPFD = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_DUMP_HWND"); - if (envptr != NULL) - glxWinDebugSettings.dumpHWND = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_DUMP_DC"); - if (envptr != NULL) - glxWinDebugSettings.dumpDC = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_ENABLE_GLCALL_TRACE"); - if (envptr != NULL) - glxWinDebugSettings.enableGLcallTrace = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_ENABLE_WGLCALL_TRACE"); - if (envptr != NULL) - glxWinDebugSettings.enableWGLcallTrace = (atoi(envptr) == 1); - - envptr = getenv("GLWIN_DEBUG_ALL"); - if (envptr != NULL) - { - glxWinDebugSettings.enableDebug = 1; - glxWinDebugSettings.enableTrace = 1; - glxWinDebugSettings.dumpPFD = 1; - glxWinDebugSettings.dumpHWND = 1; - glxWinDebugSettings.dumpDC = 1; - glxWinDebugSettings.enableGLcallTrace = 1; - glxWinDebugSettings.enableWGLcallTrace = 1; - } -} - -static -const char *glxWinErrorMessage(void) -{ - static char errorbuffer[1024]; - - if (!FormatMessage( - FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, - NULL, - GetLastError(), - MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), - (LPTSTR) &errorbuffer, - sizeof(errorbuffer), - NULL )) - { - snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error in FormatMessage: %08x!", (unsigned)GetLastError()); - } - - if (errorbuffer[strlen(errorbuffer)-1] == '\n') - errorbuffer[strlen(errorbuffer)-1] = 0; - - return errorbuffer; -} - -static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd); - -#define DUMP_PFD_FLAG(flag) \ - if (pfd->dwFlags & flag) { \ - ErrorF("%s%s", pipesym, #flag); \ - pipesym = " | "; \ - } - -static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd) -{ - const char *pipesym = ""; /* will be set after first flag dump */ - ErrorF("PIXELFORMATDESCRIPTOR:\n"); - ErrorF("nSize = %u\n", pfd->nSize); - ErrorF("nVersion = %u\n", pfd->nVersion); - ErrorF("dwFlags = %lu = {", pfd->dwFlags); - DUMP_PFD_FLAG(PFD_DOUBLEBUFFER); - DUMP_PFD_FLAG(PFD_STEREO); - DUMP_PFD_FLAG(PFD_DRAW_TO_WINDOW); - DUMP_PFD_FLAG(PFD_DRAW_TO_BITMAP); - DUMP_PFD_FLAG(PFD_SUPPORT_GDI); - DUMP_PFD_FLAG(PFD_SUPPORT_OPENGL); - DUMP_PFD_FLAG(PFD_GENERIC_FORMAT); - DUMP_PFD_FLAG(PFD_NEED_PALETTE); - DUMP_PFD_FLAG(PFD_NEED_SYSTEM_PALETTE); - DUMP_PFD_FLAG(PFD_SWAP_EXCHANGE); - DUMP_PFD_FLAG(PFD_SWAP_COPY); - DUMP_PFD_FLAG(PFD_SWAP_LAYER_BUFFERS); - DUMP_PFD_FLAG(PFD_GENERIC_ACCELERATED); - DUMP_PFD_FLAG(PFD_DEPTH_DONTCARE); - DUMP_PFD_FLAG(PFD_DOUBLEBUFFER_DONTCARE); - DUMP_PFD_FLAG(PFD_STEREO_DONTCARE); - ErrorF("}\n"); - - ErrorF("iPixelType = %hu = %s\n", pfd->iPixelType, - (pfd->iPixelType == PFD_TYPE_RGBA ? "PFD_TYPE_RGBA" : "PFD_TYPE_COLORINDEX")); - ErrorF("cColorBits = %hhu\n", pfd->cColorBits); - ErrorF("cRedBits = %hhu\n", pfd->cRedBits); - ErrorF("cRedShift = %hhu\n", pfd->cRedShift); - ErrorF("cGreenBits = %hhu\n", pfd->cGreenBits); - ErrorF("cGreenShift = %hhu\n", pfd->cGreenShift); - ErrorF("cBlueBits = %hhu\n", pfd->cBlueBits); - ErrorF("cBlueShift = %hhu\n", pfd->cBlueShift); - ErrorF("cAlphaBits = %hhu\n", pfd->cAlphaBits); - ErrorF("cAlphaShift = %hhu\n", pfd->cAlphaShift); - ErrorF("cAccumBits = %hhu\n", pfd->cAccumBits); - ErrorF("cAccumRedBits = %hhu\n", pfd->cAccumRedBits); - ErrorF("cAccumGreenBits = %hhu\n", pfd->cAccumGreenBits); - ErrorF("cAccumBlueBits = %hhu\n", pfd->cAccumBlueBits); - ErrorF("cAccumAlphaBits = %hhu\n", pfd->cAccumAlphaBits); - ErrorF("cDepthBits = %hhu\n", pfd->cDepthBits); - ErrorF("cStencilBits = %hhu\n", pfd->cStencilBits); - ErrorF("cAuxBuffers = %hhu\n", pfd->cAuxBuffers); - ErrorF("iLayerType = %hhu\n", pfd->iLayerType); - ErrorF("bReserved = %hhu\n", pfd->bReserved); - ErrorF("dwLayerMask = %lu\n", pfd->dwLayerMask); - ErrorF("dwVisibleMask = %lu\n", pfd->dwVisibleMask); - ErrorF("dwDamageMask = %lu\n", pfd->dwDamageMask); - ErrorF("\n"); -} - -static const char * -visual_class_name(int cls) -{ - switch (cls) { - case GLX_STATIC_COLOR: - return "StaticColor"; - case GLX_PSEUDO_COLOR: - return "PseudoColor"; - case GLX_STATIC_GRAY: - return "StaticGray"; - case GLX_GRAY_SCALE: - return "GrayScale"; - case GLX_TRUE_COLOR: - return "TrueColor"; - case GLX_DIRECT_COLOR: - return "DirectColor"; - default: - return "-none-"; - } -} - -static const char * -swap_method_name(int mthd) -{ - switch (mthd) - { - case GLX_SWAP_EXCHANGE_OML: - return "xchg"; - case GLX_SWAP_COPY_OML: - return "copy"; - case GLX_SWAP_UNDEFINED_OML: - return " "; - default: - return "????"; - } -} - -static void -fbConfigsDump(unsigned int n, __GLXconfig *c) -{ - ErrorF("%d fbConfigs\n", n); - ErrorF("pxf vis fb render Ste aux accum MS drawable Group/\n"); - ErrorF("idx ID ID VisualType Depth Lvl RGB CI DB Swap reo R G B A Z S buf AR AG AB AA bufs num W P Pb Float Trans Caveat\n"); - ErrorF("-----------------------------------------------------------------------------------------------------------------------------\n"); - - while (c != NULL) - { - unsigned int i = ((GLXWinConfig *)c)->pixelFormatIndex; - - ErrorF("%3d %2x %2x " - "%-11s" - " %3d %3d %s %s %s %s %s " - "%2d %2d %2d %2d " - "%2d %2d " - "%2d " - "%2d %2d %2d %2d" - " %2d %2d" - " %s %s %s " - " %s " - " %s " - " %d %s" - "\n", - i, c->visualID, c->fbconfigID, - visual_class_name(c->visualType), - c->rgbBits ? c->rgbBits : c->indexBits, - c->level, - (c->renderType & GLX_RGBA_BIT) ? "y" : ".", - (c->renderType & GLX_COLOR_INDEX_BIT) ? "y" : ".", - c->doubleBufferMode ? "y" : ".", - swap_method_name(c->swapMethod), - c->stereoMode ? "y" : ".", - c->redBits, c->greenBits, c->blueBits, c->alphaBits, - c->depthBits, c->stencilBits, - c->numAuxBuffers, - c->accumRedBits, c->accumGreenBits, c->accumBlueBits, c->accumAlphaBits, - c->sampleBuffers, c->samples, - (c->drawableType & GLX_WINDOW_BIT) ? "y" : ".", - (c->drawableType & GLX_PIXMAP_BIT) ? "y" : ".", - (c->drawableType & GLX_PBUFFER_BIT) ? "y" : ".", - ".", - (c->transparentPixel != GLX_NONE_EXT) ? "y" : ".", - c->visualSelectGroup, (c->visualRating == GLX_SLOW_VISUAL_EXT) ? "*" : " "); - - c = c->next; - } -} - -/* ---------------------------------------------------------------------- */ -/* - * Forward declarations - */ - -static __GLXscreen *glxWinScreenProbe(ScreenPtr pScreen); -static __GLXcontext *glxWinCreateContext(__GLXscreen *screen, - __GLXconfig *modes, - __GLXcontext *baseShareContext); -static __GLXdrawable *glxWinCreateDrawable(__GLXscreen *screen, - DrawablePtr pDraw, - int type, - XID drawId, - __GLXconfig *conf); - -static Bool glxWinRealizeWindow(WindowPtr pWin); -static Bool glxWinUnrealizeWindow(WindowPtr pWin); -static void glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc); -static Bool glxWinPositionWindow(WindowPtr pWindow, int x, int y); - -static HDC glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HDC *hdc, HWND *hwnd); -static void glxWinReleaseDC(HWND hwnd, HDC hdc, __GLXWinDrawable *draw); - -static void glxWinCreateConfigs(HDC dc, glxWinScreen *screen); -static void glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen); -static int fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride); -static int fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen); - -/* ---------------------------------------------------------------------- */ -/* - * The GLX provider - */ - -__GLXprovider __glXWGLProvider = { - glxWinScreenProbe, - "Win32 native WGL", - NULL -}; - -void -glxWinPushNativeProvider(void) -{ - if (g_fNativeGl) - GlxPushProvider(&__glXWGLProvider); -} - -/* ---------------------------------------------------------------------- */ -/* - * Screen functions - */ - -static void -glxWinScreenDestroy(__GLXscreen *screen) -{ - GLWIN_DEBUG_MSG("glxWinScreenDestroy(%p)", screen); - __glXScreenDestroy(screen); - xfree(screen); -} - -static int -glxWinScreenSwapInterval(__GLXdrawable *drawable, int interval) -{ - BOOL ret = wglSwapIntervalEXTWrapper(interval); - if (!ret) - { - ErrorF("wglSwapIntervalEXT interval %d failed:%s\n", interval, glxWinErrorMessage()); - } - return ret; -} - -static LRESULT CALLBACK GlxWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) -{ - if (uMsg== WM_NCHITTEST) - { - return HTTRANSPARENT; - } - else - return DefWindowProc(hwnd, uMsg, wParam, lParam); -} - -/* This is called by GlxExtensionInit() asking the GLX provider if it can handle the screen... */ -static __GLXscreen * -glxWinScreenProbe(ScreenPtr pScreen) -{ - glxWinScreen *screen; - const char *gl_extensions; - const char *wgl_extensions; - HWND hwnd; - HDC hdc; - HGLRC hglrc; - - GLWIN_DEBUG_MSG("glxWinScreenProbe"); - - glxWinInitDebugSettings(); - - if (pScreen == NULL) - return NULL; - - if (!winCheckScreenAiglxIsSupported(pScreen)) - { - LogMessage(X_ERROR,"AIGLX: No native OpenGL in modes with a root window\n"); - return NULL; - } - - screen = xcalloc(1, sizeof(glxWinScreen)); - - if (NULL == screen) - return NULL; - - /* Wrap RealizeWindow, UnrealizeWindow and CopyWindow on this screen */ - screen->RealizeWindow = pScreen->RealizeWindow; - pScreen->RealizeWindow = glxWinRealizeWindow; - screen->UnrealizeWindow = pScreen->UnrealizeWindow; - pScreen->UnrealizeWindow = glxWinUnrealizeWindow; - screen->CopyWindow = pScreen->CopyWindow; - pScreen->CopyWindow = glxWinCopyWindow; - screen->PositionWindow = pScreen->PositionWindow; - pScreen->PositionWindow = glxWinPositionWindow; - - /* Dump out some useful information about the native renderer */ - - // create window class - { - static wATOM glTestWndClass = 0; - if (glTestWndClass == 0) - { - WNDCLASSEX wc; - glTestWndClass=1; - wc.cbSize = sizeof(WNDCLASSEX); - wc.style = CS_OWNDC ; - wc.lpfnWndProc = GlxWindowProc; - wc.cbClsExtra = 0; - wc.cbWndExtra = 0; - wc.hInstance = GetModuleHandle(NULL); - wc.hIcon = 0; - wc.hCursor = 0; - wc.hbrBackground = 0; - wc.lpszMenuName = NULL; - wc.lpszClassName = WIN_GL_WINDOW_CLASS; - wc.hIconSm = 0; - RegisterClassEx (&wc); - } - } - - // create an invisible window for a scratch DC - hwnd = CreateWindowExA(0, - WIN_GL_WINDOW_CLASS, - "XWin GL Renderer Capabilities Test Window", - 0, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL); - if (hwnd == NULL) - LogMessage(X_ERROR,"AIGLX: Couldn't create a window for render capabilities testing\n"); - - hdc = GetDC(hwnd); - - // we must set a pixel format before we can create a context, just use the first one... - SetPixelFormat(hdc, 1, NULL); - hglrc = wglCreateContext(hdc); - wglMakeCurrent(hdc, hglrc); - - // initialize wgl extension proc pointers (don't call them before here...) - // (but we need to have a current context for them to be resolvable) - wglResolveExtensionProcs(); - - ErrorF("GL_VERSION: %s\n", glGetStringWrapperNonstatic(GL_VERSION)); - ErrorF("GL_VENDOR: %s\n", glGetStringWrapperNonstatic(GL_VENDOR)); - ErrorF("GL_RENDERER: %s\n", glGetStringWrapperNonstatic(GL_RENDERER)); - gl_extensions = (const char *)glGetStringWrapperNonstatic(GL_EXTENSIONS); - ErrorF("GL_EXTENSIONS: %s\n", gl_extensions); - wgl_extensions = wglGetExtensionsStringARBWrapper(hdc); - if (!wgl_extensions) - wgl_extensions=""; - ErrorF("WGL_EXTENSIONS:%s\n", wgl_extensions); - - // Can you see the problem here? The extensions string is DC specific - // Different DCs for windows on a multimonitor system driven by multiple cards - // might have completely different capabilities. Of course, good luck getting - // those screens to be accelerated in XP and earlier... - - { - // testing facility to not use any WGL extensions - char *envptr = getenv("GLWIN_NO_WGL_EXTENSIONS"); - if ((envptr != NULL) && (atoi(envptr) != 0)) - { - ErrorF("GLWIN_NO_WGL_EXTENSIONS is set, ignoring WGL_EXTENSIONS\n"); - wgl_extensions = ""; - } - } - - { - Bool glx_sgi_make_current_read = FALSE; - - // - // Based on the WGL extensions available, enable various GLX extensions - // XXX: make this table-driven ? - // - memset(screen->glx_enable_bits, 0, __GLX_EXT_BYTES); - - __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_info"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_rating"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_import_context"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_OML_swap_method"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_fbconfig"); - - if (strstr(wgl_extensions, "WGL_ARB_make_current_read")) - { - __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_make_current_read"); - LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); - glx_sgi_make_current_read = TRUE; - } - - if (strstr(gl_extensions, "GL_WIN_swap_hint")) - { - __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer"); - LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); - } - - if (strstr(wgl_extensions, "WGL_EXT_swap_control")) - { - __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control"); - LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); - } - -/* // Hmm? screen->texOffset */ -/* if (strstr(wgl_extensions, "WGL_ARB_render_texture")) */ -/* { */ -/* __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_texture_from_pixmap"); */ -/* LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); */ -/* screen->has_WGL_ARB_render_texture = TRUE; */ -/* } */ - - if (strstr(wgl_extensions, "WGL_ARB_pbuffer")) - { - __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_pbuffer"); - LogMessage(X_INFO, "AIGLX: enabled GLX_SGIX_pbuffer\n"); - screen->has_WGL_ARB_pbuffer = TRUE; - } - - if (strstr(wgl_extensions, "WGL_ARB_multisample")) - { - __glXEnableExtension(screen->glx_enable_bits, "GLX_ARB_multisample"); - __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIS_multisample"); - LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_multisample and GLX_SGIS_multisample\n"); - screen->has_WGL_ARB_multisample = TRUE; - } - - screen->base.destroy = glxWinScreenDestroy; - screen->base.createContext = glxWinCreateContext; - screen->base.createDrawable = glxWinCreateDrawable; - screen->base.swapInterval = glxWinScreenSwapInterval; - screen->base.hyperpipeFuncs = NULL; - screen->base.swapBarrierFuncs = NULL; - screen->base.pScreen = pScreen; - - if (strstr(wgl_extensions, "WGL_ARB_pixel_format")) - { - glxWinCreateConfigsExt(hdc, screen); - screen->has_WGL_ARB_pixel_format = TRUE; - } - else - { - glxWinCreateConfigs(hdc, screen); - screen->has_WGL_ARB_pixel_format = FALSE; - } - // Initializes screen->base.fbconfigs and screen->base.numFBConfigs - - /* These will be set by __glXScreenInit */ - screen->base.visuals = NULL; - screen->base.numVisuals = 0; - - __glXScreenInit(&screen->base, pScreen); - - // dump out fbConfigs now fbConfigIds and visualIDs have been assigned - fbConfigsDump(screen->base.numFBConfigs, screen->base.fbconfigs); - - // Override the GL extensions string set by __glXScreenInit() - screen->base.GLextensions = xstrdup(gl_extensions); - - // Generate the GLX extensions string (overrides that set by __glXScreenInit()) - { - unsigned int buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); - if (buffer_size > 0) - { - if (screen->base.GLXextensions != NULL) - { - xfree(screen->base.GLXextensions); - } - - screen->base.GLXextensions = xnfalloc(buffer_size); - __glXGetExtensionString(screen->glx_enable_bits, screen->base.GLXextensions); - } - } - - // - // Override the GLX version (__glXScreenInit() sets it to "1.2") - // if we have all the needed extensionsto operate as a higher version - // - // SGIX_fbconfig && SGIX_pbuffer && SGI_make_current_read -> 1.3 - // ARB_multisample -> 1.4 - // - if (screen->has_WGL_ARB_pbuffer && glx_sgi_make_current_read) - { - xfree(screen->base.GLXversion); - - if (screen->has_WGL_ARB_multisample) - { - screen->base.GLXversion = xstrdup("1.4"); - screen->base.GLXminor=4; - /* - XXX: this just controls the version string returned to glXQueryServerString() - there is currently no way to control the version number the server returns to - glXQueryVersion()... - */ - } - else - { - screen->base.GLXversion = xstrdup("1.3"); - screen->base.GLXminor=3; - } - LogMessage(X_INFO, "AIGLX: Set GLX version to %s\n", screen->base.GLXversion); - } - } - - wglMakeCurrent(NULL, NULL); - wglDeleteContext(hglrc); - ReleaseDC(hwnd, hdc); - DestroyWindow(hwnd); - - return &screen->base; -} - -/* ---------------------------------------------------------------------- */ -/* - * Window functions - */ - -static Bool -glxWinRealizeWindow(WindowPtr pWin) -{ - Bool result; - ScreenPtr pScreen = pWin->drawable.pScreen; - glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); - winWindowPriv(pWin); - - GLWIN_DEBUG_MSG("glxWinRealizeWindow"); - - /* Allow the window to be created (RootlessRealizeWindow is inside our wrap) */ - pScreen->RealizeWindow = screenPriv->RealizeWindow; - result = pScreen->RealizeWindow(pWin); - pScreen->RealizeWindow = glxWinRealizeWindow; - - // Check if ze need to move the window\n - if (g_fXdmcpEnabled && pWinPriv->hWnd) - { - ShowWindow(pWinPriv->hWnd,SW_SHOW); - } - return result; -} - - -static void -glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc) -{ - __GLXWinDrawable *pGlxDraw; - ScreenPtr pScreen = pWindow->drawable.pScreen; - glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); - - GLWIN_TRACE_MSG("glxWinCopyWindow pWindow %p", pWindow); - - dixLookupResourceByType((pointer) &pGlxDraw, pWindow->drawable.id, __glXDrawableRes, - NullClient, DixUnknownAccess); - - - /* - Discard any CopyWindow requests if a GL drawing context is pointing at the window - - For regions which are being drawn by GL, the shadow framebuffer doesn't have the - correct bits, so we wish to avoid shadow framebuffer damage occuring, which will - cause those incorrect bits to be transferred to the display.... - */ - if (pGlxDraw && pGlxDraw->drawContext) - { - GLWIN_DEBUG_MSG("glxWinCopyWindow: discarding"); - return; - } - - GLWIN_DEBUG_MSG("glxWinCopyWindow - passing to hw layer"); - - pScreen->CopyWindow = screenPriv->CopyWindow; - pScreen->CopyWindow(pWindow, ptOldOrg, prgnSrc); - pScreen->CopyWindow = glxWinCopyWindow; - -} - -static Bool -glxWinPositionWindow(WindowPtr pWin, int x, int y) -{ - Bool result; - __GLXWinDrawable *pGlxDraw; - ScreenPtr pScreen = pWin->drawable.pScreen; - glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); - winWindowPriv(pWin); - - pScreen->PositionWindow = screenPriv->PositionWindow; - result = pScreen->PositionWindow(pWin, x, y); - pScreen->PositionWindow = glxWinPositionWindow; - - if (g_fXdmcpEnabled && pWinPriv->hWnd) - { - MoveWindow(pWinPriv->hWnd, - pWin->drawable.x, - pWin->drawable.y, - pWin->drawable.width, - pWin->drawable.height, - FALSE); - } - return result; -} - - -static Bool -glxWinUnrealizeWindow(WindowPtr pWin) -{ - Bool result; - ScreenPtr pScreen = pWin->drawable.pScreen; - glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen); - winWindowPriv(pWin); - - GLWIN_DEBUG_MSG("glxWinUnrealizeWindow"); - - pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow; - result = pScreen->UnrealizeWindow(pWin); - pScreen->UnrealizeWindow = glxWinUnrealizeWindow; - - if (g_fXdmcpEnabled && pWinPriv->hWnd) - ShowWindow(pWinPriv->hWnd,SW_HIDE); - - return result; -} - -/* ---------------------------------------------------------------------- */ -/* - * Drawable functions - */ - -static GLboolean -glxWinDrawableSwapBuffers(__GLXdrawable *base) -{ - HDC dc; - HWND hwnd; - BOOL ret; - __GLXWinDrawable *draw = (__GLXWinDrawable *)base; - - /* Swap buffers on the last active context for drawing on the drawable */ - if (draw->drawContext == NULL) - { - GLWIN_TRACE_MSG("glxWinSwapBuffers - no context for drawable"); - return GL_FALSE; - } - - GLWIN_TRACE_MSG("glxWinSwapBuffers on drawable %p, last context %p (native ctx %p)", base, draw->drawContext, draw->drawContext->ctx); - - /* - draw->drawContext->base.drawPriv will not be set if the context is not current anymore, - but if it is, it should point to this drawable.... - */ - assert((draw->drawContext->base.drawPriv == NULL) || (draw->drawContext->base.drawPriv == base)); - - dc = glxWinMakeDC(draw->drawContext, draw, &dc, &hwnd); - if (dc == NULL) - return GL_FALSE; - - ret = wglSwapLayerBuffers(dc, WGL_SWAP_MAIN_PLANE); - - glxWinReleaseDC(hwnd, dc, draw); - - if (!ret) - { - ErrorF("wglSwapBuffers failed: %s\n", glxWinErrorMessage()); - return GL_FALSE; - } - - return GL_TRUE; -} - -static void -glxWinDrawableCopySubBuffer(__GLXdrawable *drawable, - int x, int y, int w, int h) -{ - glAddSwapHintRectWINWrapperNonstatic(x, y, w, h); - glxWinDrawableSwapBuffers(drawable); -} - -static void -glxWinDrawableDestroy(__GLXdrawable *base) -{ - __GLXWinDrawable *glxPriv = (__GLXWinDrawable *)base; - - if (glxPriv->drawContext && (__glXLastContext == &((glxPriv->drawContext)->base))) - { - // if this context is current and has unflushed commands, say we have flushed them - // (don't actually flush them, the window is going away anyhow, and an implict flush occurs - // on the next context change) - // (GLX core considers it an error when we try to select a new current context if the old one - // has unflushed commands, but the window has disappeared..) - __GLX_NOTE_FLUSHED_CMDS(__glXLastContext); - __glXLastContext = NULL; - } - - if (glxPriv->hPbuffer) - if (!wglDestroyPbufferARBWrapper(glxPriv->hPbuffer)) - { - ErrorF("wglDestroyPbufferARB failed: %s\n", glxWinErrorMessage()); - } - - if (glxPriv->dibDC) - { - // restore the default DIB - SelectObject(glxPriv->dibDC, glxPriv->hOldDIB); - - if (!DeleteDC(glxPriv->dibDC)) - { - ErrorF("DeleteDC failed: %s\n", glxWinErrorMessage()); - } - } - - if (glxPriv->hDIB) - { - if (!DeleteObject(glxPriv->hDIB)) - { - ErrorF("DeleteObject failed: %s\n", glxWinErrorMessage()); - } - - ((PixmapPtr)glxPriv->base.pDraw)->devPrivate.ptr = glxPriv->pOldBits; - } - - GLWIN_DEBUG_MSG("glxWinDestroyDrawable"); - xfree(glxPriv); -} - -static __GLXdrawable * -glxWinCreateDrawable(__GLXscreen *screen, - DrawablePtr pDraw, - int type, - XID drawId, - __GLXconfig *conf) -{ - __GLXWinDrawable *glxPriv; - - glxPriv = xalloc(sizeof *glxPriv); - - if (glxPriv == NULL) - return NULL; - - memset(glxPriv, 0, sizeof *glxPriv); - - if(!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, drawId, conf)) { - xfree(glxPriv); - return NULL; - } - - glxPriv->base.destroy = glxWinDrawableDestroy; - glxPriv->base.swapBuffers = glxWinDrawableSwapBuffers; - glxPriv->base.copySubBuffer = glxWinDrawableCopySubBuffer; - // glxPriv->base.waitX what are these for? - // glxPriv->base.waitGL - - GLWIN_DEBUG_MSG("glxWinCreateDrawable %p", glxPriv); - - return &glxPriv->base; -} - -/* ---------------------------------------------------------------------- */ -/* - * Texture functions - */ - -static -int glxWinBindTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - ErrorF("glxWinBindTexImage: not implemented\n"); - return FALSE; -} - -static -int glxWinReleaseTexImage(__GLXcontext *baseContext, - int buffer, - __GLXdrawable *pixmap) -{ - ErrorF(" glxWinReleaseTexImage: not implemented\n"); - return FALSE; -} - -/* ---------------------------------------------------------------------- */ -/* - * Lazy update context implementation - * - * WGL contexts are created for a specific HDC, so we cannot create the WGL - * context in glxWinCreateContext(), we must defer creation until the context - * is actually used on a specifc drawable which is connected to a native window, - * pbuffer or DIB - * - * The WGL context may be used on other, compatible HDCs, so we don't need to - * recreate it for every new native window - * - * XXX: I wonder why we can't create the WGL context on the screen HDC ? - * Basically we assume all HDCs are compatible at the moment: if they are not - * we are in a muddle, there was some code in the old implementation to attempt - * to transparently migrate a context to a new DC by copying state and sharing - * lists with the old one... - */ - -static void -glxWinSetPixelFormat(__GLXWinContext *gc, HDC hdc, int bppOverride, int drawableTypeOverride) -{ - __GLXscreen *screen = gc->base.pGlxScreen; - glxWinScreen *winScreen = (glxWinScreen *)screen; - - __GLXconfig *config = gc->base.config; - GLXWinConfig *winConfig = (GLXWinConfig *)config; - - GLWIN_DEBUG_MSG("glxWinSetPixelFormat: pixelFormatIndex %d", winConfig->pixelFormatIndex); - - /* - Normally, we can just use the the pixelFormatIndex corresponding - to the fbconfig which has been specified by the client - */ - - if (!((bppOverride && (bppOverride != (config->redBits + config->greenBits + config->blueBits) )) - || ((config->drawableType & drawableTypeOverride) == 0))) - { - if (!SetPixelFormat(hdc, winConfig->pixelFormatIndex, NULL)) - { - ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - - return; - } - - /* - However, in certain special cases this pixel format will be incompatible with the - use we are going to put it to, so we need to re-evaluate the pixel format to use: - - 1) When PFD_DRAW_TO_BITMAP is set, ChoosePixelFormat() always returns a format with - the cColorBits we asked for, so we need to ensure it matches the bpp of the bitmap - - 2) Applications may assume that visuals selected with glXChooseVisual() work with - pixmap drawables (there is no attribute to explicitly query for pixmap drawable - support as there is for glXChooseFBConfig()) - (it's arguable this is an error in the application, but we try to make it work) - - pixmap rendering is always slow for us, so we don't want to choose those visuals - by default, but if the actual drawable type we're trying to select the context - on (drawableTypeOverride) isn't supported by the selected fbConfig, reconsider - and see if we can find a suitable one... - */ - ErrorF("glxWinSetPixelFormat: having second thoughts: cColorbits %d, bppOveride %d; config->drawableType %d, drawableTypeOverride %d\n", - (config->redBits + config->greenBits + config->blueBits), bppOverride, config->drawableType, drawableTypeOverride); - - if (!winScreen->has_WGL_ARB_pixel_format) - { - PIXELFORMATDESCRIPTOR pfd; - int pixelFormat; - - /* convert fbConfig to PFD */ - if (fbConfigToPixelFormat(gc->base.config, &pfd, drawableTypeOverride)) - { - ErrorF("glxWinSetPixelFormat: fbConfigToPixelFormat failed\n"); - return; - } - - if (glxWinDebugSettings.dumpPFD) - pfdOut(&pfd); - - if (bppOverride) - { - GLWIN_DEBUG_MSG("glxWinSetPixelFormat: Forcing bpp from %d to %d\n", pfd.cColorBits, bppOverride); - pfd.cColorBits = bppOverride; - } - - pixelFormat = ChoosePixelFormat(hdc, &pfd); - if (pixelFormat == 0) - { - ErrorF("ChoosePixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - - GLWIN_DEBUG_MSG("ChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); - ErrorF("ChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); - - if (!SetPixelFormat(hdc, pixelFormat, &pfd)) - { - ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - } - else - { - int pixelFormat = fbConfigToPixelFormatIndex(hdc, gc->base.config, drawableTypeOverride, winScreen); - if (pixelFormat == 0) - { - ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - - GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); - ErrorF("wglChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); - - if (!SetPixelFormat(hdc, pixelFormat, NULL)) - { - ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - } -} - -static HDC -glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HDC *hdc, HWND *hwnd) -{ - *hdc = NULL; - *hwnd = NULL; - - if (draw == NULL) - { - GLWIN_TRACE_MSG("No drawable for context %p (native ctx %p)", gc, gc->ctx); - return NULL; - } - - switch (draw->base.type) - { - case GLX_DRAWABLE_WINDOW: - { - winWindowInfoRec winInfo; - WindowPtr pWin; - - pWin = (WindowPtr) draw->base.pDraw; - if (pWin == NULL) - { - GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin); - return NULL; - } - - winGetWindowInfo(pWin, &winInfo); - *hwnd = winInfo.hwnd; - - if (winInfo.hwnd == NULL) - { - ErrorF("No HWND error: %s\n", glxWinErrorMessage()); - return NULL; - } - - *hdc = GetDC(winInfo.hwnd); - - if (*hdc == NULL) - ErrorF("GetDC error: %s\n", glxWinErrorMessage()); - - /* Check if the hwnd has changed... */ - if (winInfo.hwnd != gc->hwnd) - { - if (glxWinDebugSettings.enableTrace) - GLWIN_DEBUG_HWND(winInfo.hwnd); - - GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, winInfo.hwnd); - gc->hwnd = winInfo.hwnd; - - /* We must select a pixelformat, but SetPixelFormat can only be called once for a window... */ - glxWinSetPixelFormat(gc, *hdc, 0, GLX_WINDOW_BIT); - } - } - break; - - case GLX_DRAWABLE_PBUFFER: - { - *hdc = wglGetPbufferDCARBWrapper(draw->hPbuffer); - - if (*hdc == NULL) - ErrorF("GetDC (pbuffer) error: %s\n", glxWinErrorMessage()); - } - break; - - case GLX_DRAWABLE_PIXMAP: - { - *hdc = draw->dibDC; - } - break; - - default: - { - ErrorF("glxWinMakeDC: tried to makeDC for unhandled drawable type %d\n", draw->base.type); - } - } - - if (glxWinDebugSettings.dumpDC) - GLWIN_DEBUG_MSG("Got HDC %p", *hdc); - - return *hdc; -} - -static void -glxWinReleaseDC(HWND hwnd, HDC hdc,__GLXWinDrawable *draw) -{ - switch (draw->base.type) - { - case GLX_DRAWABLE_WINDOW: - { - ReleaseDC(hwnd, hdc); - } - break; - - case GLX_DRAWABLE_PBUFFER: - { - if (!wglReleasePbufferDCARBWrapper(draw->hPbuffer, hdc)) - { - ErrorF("wglReleasePbufferDCARB error: %s\n", glxWinErrorMessage()); - } - } - break; - - case GLX_DRAWABLE_PIXMAP: - { - // don't release DC, the memory DC lives as long as the bitmap - - // We must ensure that all GDI drawing into the bitmap has completed - // in case we subsequently access the bits from it - GdiFlush(); - } - break; - - default: - { - ErrorF("glxWinReleaseDC: tried to releaseDC for unhandled drawable type %d\n", draw->base.type); - } - } -} - -static void -glxWinDeferredCreateContext(__GLXWinContext *gc, __GLXWinDrawable *draw) -{ - HDC dc; - HWND hwnd; - winWindowPriv(((WindowPtr) draw->base.pDraw)); - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw); - - switch (draw->base.type) - { - case GLX_DRAWABLE_WINDOW: - { - winWindowInfoRec winInfo; - WindowPtr pWin = (WindowPtr) draw->base.pDraw; - - if (!(gc->base.config->drawableType & GLX_WINDOW_BIT)) - { - ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_WINDOW_BIT to a GLX_DRAWABLE_WINDOW drawable\n"); - } - - if (pWin == NULL) - { - GLWIN_DEBUG_MSG("Deferring until X window is created"); - return; - } - - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pWin %p", pWin); - - winGetWindowInfo(pWin, &winInfo); - if (winInfo.hwnd == NULL) - { - GLWIN_DEBUG_MSG("Deferring until native window is created"); - return; - } - } - break; - - case GLX_DRAWABLE_PBUFFER: - { - if (draw->hPbuffer == NULL) - { - __GLXscreen *screen; - glxWinScreen *winScreen; - int pixelFormat; - // XXX: which DC are supposed to use??? - HDC screenDC = GetDC(NULL); - - if (!(gc->base.config->drawableType & GLX_PBUFFER_BIT)) - { - ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PBUFFER_BIT to a GLX_DRAWABLE_PBUFFER drawable\n"); - } - - screen = gc->base.pGlxScreen; - winScreen = (glxWinScreen *)screen; - - pixelFormat = fbConfigToPixelFormatIndex(screenDC, gc->base.config, GLX_DRAWABLE_PBUFFER, winScreen); - if (pixelFormat == 0) - { - ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); - return; - } - - draw->hPbuffer = wglCreatePbufferARBWrapper(screenDC, pixelFormat, draw->base.pDraw->width, draw->base.pDraw->height, NULL); - ReleaseDC(NULL, screenDC); - - if (draw->hPbuffer == NULL) - { - ErrorF("wglCreatePbufferARBWrapper error: %s\n", glxWinErrorMessage()); - return; - } - - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pBuffer %p created for drawable %p", draw->hPbuffer, draw); - } - } - break; - - case GLX_DRAWABLE_PIXMAP: - { - if (draw->dibDC == NULL) - { - BITMAPINFOHEADER bmpHeader; - void *pBits; - - ZeroMemory(&bmpHeader,sizeof(bmpHeader)); - bmpHeader.biSize=sizeof(bmpHeader); - bmpHeader.biWidth=draw->base.pDraw->width; - bmpHeader.biHeight=draw->base.pDraw->height; - bmpHeader.biPlanes=1; - bmpHeader.biBitCount=draw->base.pDraw->bitsPerPixel; - bmpHeader.biCompression=BI_RGB; - - if (!(gc->base.config->drawableType & GLX_PIXMAP_BIT)) - { - ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PIXMAP_BIT to a GLX_DRAWABLE_PIXMAP drawable\n"); - } - - draw->dibDC = CreateCompatibleDC(NULL); - if (draw->dibDC == NULL) - { - ErrorF("CreateCompatibleDC error: %s\n", glxWinErrorMessage()); - return; - } - - draw->hDIB = CreateDIBSection(draw->dibDC, (BITMAPINFO *)&bmpHeader, DIB_RGB_COLORS, &pBits, 0, 0); - if (draw->dibDC == NULL) - { - ErrorF("CreateDIBSection error: %s\n", glxWinErrorMessage()); - return; - } - - // XXX: CreateDIBSection insists on allocating the bitmap memory for us, so we're going to - // need some jiggery pokery to point the underlying X Drawable's bitmap at the same set of bits - // so that they can be read with XGetImage as well as glReadPixels, assuming the formats are - // even compatible ... - draw->pOldBits = ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr; - ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr = pBits; - - // Select the DIB into the DC - draw->hOldDIB = SelectObject(draw->dibDC, draw->hDIB); - if (!draw->hOldDIB) - { - ErrorF("SelectObject error: %s\n", glxWinErrorMessage()); - } - - // Set the pixel format of the bitmap - glxWinSetPixelFormat(gc, draw->dibDC, draw->base.pDraw->bitsPerPixel, GLX_PIXMAP_BIT); - - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: DIB bitmap %p created for drawable %p", draw->hDIB, draw); - } - } - break; - - default: - { - ErrorF("glxWinDeferredCreateContext: tried to attach unhandled drawable type %d\n", draw->base.type); - return; - } - } - - dc = glxWinMakeDC(gc, draw, &dc, &hwnd); - gc->ctx = wglCreateContext(dc); - gc->GlCtxWnd = pWinPriv->GlCtxWnd; - - glxWinReleaseDC(hwnd, dc, draw); - - if (gc->ctx == NULL) - { - ErrorF("wglCreateContext error: %s\n", glxWinErrorMessage()); - return; - } - - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attached context %p to native context %p drawable %p", gc, gc->ctx, draw); - - // if the native context was created successfully, shareLists if needed - if (gc->ctx && gc->shareContext) - { - GLWIN_DEBUG_MSG("glxWinCreateContextReal shareLists with context %p (native ctx %p)", gc->shareContext, gc->shareContext->ctx); - - if (!wglShareLists(gc->shareContext->ctx, gc->ctx)) - { - ErrorF("wglShareLists error: %s\n", glxWinErrorMessage()); - } - } -} - -/* ---------------------------------------------------------------------- */ -/* - * Context functions - */ - - -/* Context manipulation routines should return TRUE on success, FALSE on failure */ -static int -glxWinContextMakeCurrent(__GLXcontext *base) -{ - __GLXWinContext *gc = (__GLXWinContext *)base; - BOOL ret; - HDC drawDC; - HDC readDC = NULL; - __GLXdrawable *drawPriv; - __GLXdrawable *readPriv; - HWND hwnd; - - GLWIN_TRACE_MSG("glxWinContextMakeCurrent context %p (native ctx %p)", gc, gc->ctx); - glWinCallDelta(); - - /* Keep a note of the last active context in the drawable */ - drawPriv = gc->base.drawPriv; - ((__GLXWinDrawable *)drawPriv)->drawContext = gc; - - if (gc->ctx == NULL) - { - glxWinDeferredCreateContext(gc, (__GLXWinDrawable *)drawPriv); - } - - if (gc->ctx == NULL) - { - ErrorF("glxWinContextMakeCurrent: Native context is NULL\n"); - return FALSE; - } - - drawDC = glxWinMakeDC(gc, (__GLXWinDrawable *)drawPriv, &drawDC, &hwnd); - if (drawDC == NULL) - { - ErrorF("glxWinMakeDC failed for drawDC\n"); - return FALSE; - } - - if ((gc->base.readPriv != NULL) && (gc->base.readPriv != gc->base.drawPriv)) - { - // XXX: should only occur with WGL_ARB_make_current_read - /* - If there is a separate read drawable, create a separate read DC, and - use the wglMakeContextCurrent extension to make the context current drawing - to one DC and reading from the other - */ - readPriv = gc->base.readPriv; - readDC = glxWinMakeDC(gc, (__GLXWinDrawable *)readPriv, &readDC, &hwnd); - if (readDC == NULL) - { - ErrorF("glxWinMakeDC failed for readDC\n"); - glxWinReleaseDC(hwnd, drawDC, (__GLXWinDrawable *)readPriv); - return FALSE; - } - - ret = wglMakeContextCurrentARBWrapper(drawDC, readDC, gc->ctx); - if (!ret) - { - ErrorF("wglMakeContextCurrent error: %s\n", glxWinErrorMessage()); - } - } - else - { - /* Otherwise, just use wglMakeCurrent */ - ret = wglMakeCurrent(drawDC, gc->ctx); - if (!ret) - { - ErrorF("wglMakeCurrent error: %s\n", glxWinErrorMessage()); - } - } - - // apparently make current could fail if the context is current in a different thread, - // but that shouldn't be able to happen in the current server... - - glxWinReleaseDC(hwnd, drawDC, (__GLXWinDrawable *)drawPriv); - if (readDC) - glxWinReleaseDC(hwnd, drawDC, (__GLXWinDrawable *)readPriv); - - return ret; -} - -static int -glxWinContextLoseCurrent(__GLXcontext *base) -{ - BOOL ret; - __GLXWinContext *gc = (__GLXWinContext *)base; - - GLWIN_TRACE_MSG("glxWinContextLoseCurrent context %p (native ctx %p)", gc, gc->ctx); - glWinCallDelta(); - - ret = wglMakeCurrent(NULL, NULL); /* We don't need a DC when setting no current context */ - if (!ret) - ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage()); - - __glXLastContext = NULL; /* Mesa does this; why? */ - // __glXFlushContextCache() - - return TRUE; -} - -static int -glxWinContextCopy(__GLXcontext *dst_base, __GLXcontext *src_base, unsigned long mask) -{ - __GLXWinContext *dst = (__GLXWinContext *)dst_base; - __GLXWinContext *src = (__GLXWinContext *)src_base; - BOOL ret; - - GLWIN_DEBUG_MSG("glxWinContextCopy"); - - ret = wglCopyContext(src->ctx, dst->ctx, mask); - if (!ret) - { - ErrorF("wglCopyContext error: %s\n", glxWinErrorMessage()); - } - - return ret; -} - -static int -glxWinContextForceCurrent(__GLXcontext *base) -{ - /* wglMakeCurrent always flushes the previous context, so this is equivalent to glxWinContextMakeCurrent */ - return glxWinContextMakeCurrent(base); -} - -static void -glxWinContextDestroy(__GLXcontext *base) -{ - __GLXWinContext *gc = (__GLXWinContext *)base; - - if (gc != NULL) - { - GLWIN_DEBUG_MSG("GLXcontext %p destroyed (native ctx %p)", base, gc->ctx); - - if (gc->ctx) - { - BOOL ret; - /* It's bad style to delete the context while it's still current */ - if (wglGetCurrentContext() == gc->ctx) - { - wglMakeCurrent(NULL, NULL); - } - - ret = wglDeleteContext(gc->ctx); - if (!ret) - ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage()); - gc->ctx = NULL; - if (gc->GlCtxWnd) DestroyWindow(gc->hwnd); - } - - xfree(gc); - } -} - -static __GLXcontext * -glxWinCreateContext(__GLXscreen *screen, - __GLXconfig *modes, - __GLXcontext *baseShareContext) -{ - __GLXWinContext *context; - __GLXWinContext *shareContext = (__GLXWinContext *)baseShareContext; - - static __GLXtextureFromPixmap glxWinTextureFromPixmap = - { - glxWinBindTexImage, - glxWinReleaseTexImage - }; - - context = (__GLXWinContext *)xcalloc(1, sizeof(__GLXWinContext)); - - if (!context) - return NULL; - - memset(context, 0, sizeof *context); - context->base.destroy = glxWinContextDestroy; - context->base.makeCurrent = glxWinContextMakeCurrent; - context->base.loseCurrent = glxWinContextLoseCurrent; - context->base.copy = glxWinContextCopy; - context->base.forceCurrent = glxWinContextForceCurrent; - context->base.textureFromPixmap = &glxWinTextureFromPixmap; - context->base.config = modes; - context->base.pGlxScreen = screen; - - // actual native GL context creation is deferred until attach() - context->ctx = NULL; - context->shareContext = shareContext; - - glWinSetupDispatchTable(); - - GLWIN_DEBUG_MSG("GLXcontext %p created", context); - - return &(context->base); -} - -/* ---------------------------------------------------------------------- */ -/* - * Utility functions - */ - -static int -fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride) -{ - PIXELFORMATDESCRIPTOR pfd = { - sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */ - 1, /* version number */ - PFD_SUPPORT_OPENGL, /* support OpenGL */ - PFD_TYPE_RGBA, /* RGBA type */ - 24, /* 24-bit color depth */ - 0, 0, 0, 0, 0, 0, /* color bits ignored */ - 0, /* no alpha buffer */ - 0, /* shift bit ignored */ - 0, /* no accumulation buffer */ - 0, 0, 0, 0, /* accum bits ignored */ - 32, /* 32-bit z-buffer */ - 0, /* no stencil buffer */ - 0, /* no auxiliary buffer */ - PFD_MAIN_PLANE, /* main layer */ - 0, /* reserved */ - 0, 0, 0 /* layer masks ignored */ - }; - - if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) - pfd.dwFlags |= PFD_DRAW_TO_WINDOW; /* support window */ - - if ((mode->drawableType | drawableTypeOverride) & GLX_PIXMAP_BIT) - pfd.dwFlags |= (PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI); /* supports software rendering to bitmap */ - - if (mode->stereoMode) { - pfd.dwFlags |= PFD_STEREO; - } - if (mode->doubleBufferMode) { - pfd.dwFlags |= PFD_DOUBLEBUFFER; - } - - pfd.iPixelType = PFD_TYPE_RGBA; - pfd.cColorBits = mode->redBits + mode->greenBits + mode->blueBits; - pfd.cRedBits = mode->redBits; - pfd.cRedShift = 0; /* FIXME */ - pfd.cGreenBits = mode->greenBits; - pfd.cGreenShift = 0; /* FIXME */ - pfd.cBlueBits = mode->blueBits; - pfd.cBlueShift = 0; /* FIXME */ - pfd.cAlphaBits = mode->alphaBits; - pfd.cAlphaShift = 0; /* FIXME */ - - pfd.cAccumBits = mode->accumRedBits + mode->accumGreenBits + mode->accumBlueBits + mode->accumAlphaBits; - pfd.cAccumRedBits = mode->accumRedBits; - pfd.cAccumGreenBits = mode->accumGreenBits; - pfd.cAccumBlueBits = mode->accumBlueBits; - pfd.cAccumAlphaBits = mode->accumAlphaBits; - - pfd.cDepthBits = mode->depthBits; - pfd.cStencilBits = mode->stencilBits; - pfd.cAuxBuffers = mode->numAuxBuffers; - - /* mode->level ? */ - /* mode->pixmapMode ? */ - - *pfdret = pfd; - - return 0; -} - -#define SET_ATTR_VALUE(attr, value) { attribList[i++] = attr; attribList[i++] = value; assert(i < NUM_ELEMENTS(attribList)); } - -static int -fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen) -{ - UINT numFormats; - unsigned int i = 0; - - /* convert fbConfig to attr-value list */ - int attribList[60]; - - SET_ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, TRUE); - SET_ATTR_VALUE(WGL_PIXEL_TYPE_ARB, (mode->visualType == GLX_TRUE_COLOR) ? WGL_TYPE_RGBA_ARB : WGL_TYPE_COLORINDEX_ARB); - SET_ATTR_VALUE(WGL_COLOR_BITS_ARB, (mode->visualType == GLX_TRUE_COLOR) ? mode->rgbBits : mode->indexBits); - SET_ATTR_VALUE(WGL_RED_BITS_ARB, mode->redBits); - SET_ATTR_VALUE(WGL_GREEN_BITS_ARB, mode->greenBits); - SET_ATTR_VALUE(WGL_BLUE_BITS_ARB, mode->blueBits); - SET_ATTR_VALUE(WGL_ALPHA_BITS_ARB, mode->alphaBits); - SET_ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, mode->accumRedBits); - SET_ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, mode->accumGreenBits); - SET_ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, mode->accumBlueBits); - SET_ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, mode->accumAlphaBits); - SET_ATTR_VALUE(WGL_DEPTH_BITS_ARB, mode->depthBits); - SET_ATTR_VALUE(WGL_STENCIL_BITS_ARB, mode->stencilBits); - SET_ATTR_VALUE(WGL_AUX_BUFFERS_ARB, mode->numAuxBuffers); - - if (mode->doubleBufferMode) - SET_ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, TRUE); - - if (mode->stereoMode) - SET_ATTR_VALUE(WGL_STEREO_ARB, TRUE); - - // Some attributes are only added to the list if the value requested is not 'don't care', as exactly matching that is daft.. - if (mode->swapMethod == GLX_SWAP_EXCHANGE_OML) - SET_ATTR_VALUE(WGL_SWAP_METHOD_ARB, WGL_SWAP_EXCHANGE_ARB); - - if (mode->swapMethod == GLX_SWAP_COPY_OML) - SET_ATTR_VALUE(WGL_SWAP_COPY_ARB, TRUE); - - // XXX: this should probably be the other way around, but that messes up drawableTypeOverride - if (mode->visualRating == GLX_SLOW_VISUAL_EXT) - SET_ATTR_VALUE(WGL_ACCELERATION_ARB, WGL_NO_ACCELERATION_ARB); - - // must support all the drawable types the mode supports - if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) - SET_ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB,TRUE); - - // XXX: this is a horrible hacky heuristic, in fact this whole drawableTypeOverride thing is a bad idea - // try to avoid asking for formats which don't exist (by not asking for all when adjusting the config to include the drawableTypeOverride) - if (drawableTypeOverride == GLX_WINDOW_BIT) - { - if (mode->drawableType & GLX_PIXMAP_BIT) - SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); - - if (mode->drawableType & GLX_PBUFFER_BIT) - if (winScreen->has_WGL_ARB_pbuffer) - SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); - } - else - { - if (drawableTypeOverride & GLX_PIXMAP_BIT) - SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); - - if (drawableTypeOverride & GLX_PBUFFER_BIT) - if (winScreen->has_WGL_ARB_pbuffer) - SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); - } - - SET_ATTR_VALUE(0, 0); // terminator - - /* choose the first match */ - { - int pixelFormatIndex; - - if (!wglChoosePixelFormatARBWrapper(hdc, attribList, NULL, 1, &pixelFormatIndex, &numFormats)) - { - ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); - } - else - { - if (numFormats > 0) - { - GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d)", pixelFormatIndex); - return pixelFormatIndex; - } - else - ErrorF("wglChoosePixelFormat couldn't decide\n"); - } - } - - return 0; -} - -/* ---------------------------------------------------------------------- */ - -#define BITS_AND_SHIFT_TO_MASK(bits,mask) (((1<<(bits))-1) << (mask)) - -// -// Create the GLXconfigs using DescribePixelFormat() -// -static void -glxWinCreateConfigs(HDC hdc, glxWinScreen *screen) -{ - GLXWinConfig *c, *result, *prev = NULL; - int numConfigs = 0; - int i = 0; - int n = 0; - PIXELFORMATDESCRIPTOR pfd; - - GLWIN_DEBUG_MSG("glxWinCreateConfigs"); - - screen->base.numFBConfigs = 0; - screen->base.fbconfigs = NULL; - - // get the number of pixelformats - numConfigs = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL); - GLWIN_DEBUG_MSG("DescribePixelFormat says %d possible pixel formats", numConfigs); - - /* alloc */ - result = xalloc(sizeof(GLXWinConfig) * numConfigs); - - if (NULL == result) - { - return; - } - - memset(result, 0, sizeof(GLXWinConfig) * numConfigs); - n = 0; - - /* fill in configs */ - for (i = 0; i < numConfigs; i++) - { - int rc; - - c = &(result[i]); - c->base.next = NULL; - c->pixelFormatIndex = i+1; - - rc = DescribePixelFormat(hdc, i+1, sizeof(PIXELFORMATDESCRIPTOR), &pfd); - - if (!rc) - { - ErrorF("DescribePixelFormat failed for index %d, error %s\n", i+1, glxWinErrorMessage()); - break; - } - - if (glxWinDebugSettings.dumpPFD) - pfdOut(&pfd); - - if (!(pfd.dwFlags & (PFD_DRAW_TO_WINDOW | PFD_DRAW_TO_BITMAP)) || !(pfd.dwFlags & PFD_SUPPORT_OPENGL)) - { - GLWIN_DEBUG_MSG("pixelFormat %d has unsuitable flags 0x%08lx, skipping", i+1, pfd.dwFlags); - continue; - } - - c->base.doubleBufferMode = (pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE; - c->base.stereoMode = (pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE; - - c->base.redBits = pfd.cRedBits; - c->base.greenBits = pfd.cGreenBits; - c->base.blueBits = pfd.cBlueBits; - c->base.alphaBits = pfd.cAlphaBits; - - c->base.redMask = BITS_AND_SHIFT_TO_MASK(pfd.cRedBits, pfd.cRedShift); - c->base.greenMask = BITS_AND_SHIFT_TO_MASK(pfd.cGreenBits, pfd.cGreenShift); - c->base.blueMask = BITS_AND_SHIFT_TO_MASK(pfd.cBlueBits, pfd.cBlueShift); - c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(pfd.cAlphaBits, pfd.cAlphaShift); - - c->base.rgbBits = pfd.cColorBits; - - if (pfd.iPixelType == PFD_TYPE_COLORINDEX) - { - c->base.indexBits = pfd.cColorBits; - } - else - { - c->base.indexBits = 0; - } - - c->base.accumRedBits = pfd.cAccumRedBits; - c->base.accumGreenBits = pfd.cAccumGreenBits; - c->base.accumBlueBits = pfd.cAccumBlueBits; - c->base.accumAlphaBits = pfd.cAccumAlphaBits; - // pfd.cAccumBits; - - c->base.depthBits = pfd.cDepthBits; - c->base.stencilBits = pfd.cStencilBits; - c->base.numAuxBuffers = pfd.cAuxBuffers; - - // pfd.iLayerType; // ignored - c->base.level = 0; - // pfd.dwLayerMask; // ignored - // pfd.dwDamageMask; // ignored - - c->base.pixmapMode = 0; - c->base.visualID = -1; // will be set by __glXScreenInit() - - /* EXT_visual_rating / GLX 1.2 */ - if (pfd.dwFlags & PFD_GENERIC_FORMAT) - { - c->base.visualRating = GLX_SLOW_VISUAL_EXT; - } - else - { - // PFD_GENERIC_ACCELERATED is not considered, so this may be MCD or ICD acclerated... - c->base.visualRating = GLX_NONE_EXT; - } - - /* EXT_visual_info / GLX 1.2 */ - if (pfd.iPixelType == PFD_TYPE_COLORINDEX) - { - c->base.visualType = GLX_STATIC_COLOR; - } - else - { - c->base.visualType = GLX_TRUE_COLOR; - } - - // pfd.dwVisibleMask; ??? - c->base.transparentPixel = GLX_NONE; - c->base.transparentRed = GLX_NONE; - c->base.transparentGreen = GLX_NONE; - c->base.transparentBlue = GLX_NONE; - c->base.transparentAlpha = GLX_NONE; - c->base.transparentIndex = GLX_NONE; - - /* ARB_multisample / SGIS_multisample */ - c->base.sampleBuffers = 0; - c->base.samples = 0; - - /* SGIX_fbconfig / GLX 1.3 */ - c->base.drawableType = (((pfd.dwFlags & PFD_DRAW_TO_WINDOW) ? GLX_WINDOW_BIT : 0) - | ((pfd.dwFlags & PFD_DRAW_TO_BITMAP) ? GLX_PIXMAP_BIT : 0)); - c->base.renderType = GLX_RGBA_BIT; - c->base.xRenderable = GL_TRUE; - c->base.fbconfigID = -1; // will be set by __glXScreenInit() - - /* SGIX_pbuffer / GLX 1.3 */ - // XXX: How can we find these values out ??? - c->base.maxPbufferWidth = -1; - c->base.maxPbufferHeight = -1; - c->base.maxPbufferPixels = -1; - c->base.optimalPbufferWidth = 0; // there is no optimal value - c->base.optimalPbufferHeight = 0; - - /* SGIX_visual_select_group */ - // arrange for visuals with the best acceleration to be preferred in selection - switch (pfd.dwFlags & (PFD_GENERIC_FORMAT | PFD_GENERIC_ACCELERATED)) - { - case 0: - c->base.visualSelectGroup = 2; - break; - - case PFD_GENERIC_ACCELERATED: - c->base.visualSelectGroup = 1; - break; - - case PFD_GENERIC_FORMAT: - c->base.visualSelectGroup = 0; - break; - - default: - ; - // "can't happen" - } - - /* OML_swap_method */ - if (pfd.dwFlags & PFD_SWAP_EXCHANGE) - c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; - else if (pfd.dwFlags & PFD_SWAP_COPY) - c->base.swapMethod = GLX_SWAP_COPY_OML; - else - c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; - - /* EXT_import_context */ - c->base.screen = screen->base.pScreen->myNum; - - /* EXT_texture_from_pixmap */ - c->base.bindToTextureRgb = -1; - c->base.bindToTextureRgba = -1; - c->base.bindToMipmapTexture = -1; - c->base.bindToTextureTargets = -1; - c->base.yInverted = -1; - - n++; - - // update previous config to point to this config - if (prev) - prev->base.next = &(c->base); - - prev = c; - } - - GLWIN_DEBUG_MSG("found %d pixelFormats suitable for conversion to fbConfigs", n); - - screen->base.numFBConfigs = n; - screen->base.fbconfigs = &(result->base); -} - -// helper function to access an attribute value from an attribute value array by attribute -static -int getAttrValue(const int attrs[], int values[], unsigned int num, int attr, int fallback) -{ - unsigned int i; - for (i = 0; i < num; i++) - { - if (attrs[i] == attr) - { - GLWIN_TRACE_MSG("getAttrValue attr 0x%x, value %d", attr, values[i]); - return values[i]; - } - } - - ErrorF("getAttrValue failed to find attr 0x%x, using default value %d\n", attr, fallback); - return fallback; -} - -// -// Create the GLXconfigs using wglGetPixelFormatAttribfvARB() extension -// -static void -glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen) -{ - GLXWinConfig *c, *result, *prev = NULL; - int i = 0; - int n = 0; - - const int attr = WGL_NUMBER_PIXEL_FORMATS_ARB; - int numConfigs; - - int attrs[50]; - unsigned int num_attrs = 0; - - GLWIN_DEBUG_MSG("glxWinCreateConfigsExt"); - - screen->base.numFBConfigs = 0; - screen->base.fbconfigs = NULL; - - if (!wglGetPixelFormatAttribivARBWrapper(hdc, 0, 0, 1, &attr, &numConfigs)) - { - ErrorF("wglGetPixelFormatAttribivARB failed for WGL_NUMBER_PIXEL_FORMATS_ARB: %s\n", glxWinErrorMessage()); - return; - } - - GLWIN_DEBUG_MSG("wglGetPixelFormatAttribivARB says %d possible pixel formats", numConfigs); - - /* alloc */ - result = xalloc(sizeof(GLXWinConfig) * numConfigs); - - if (NULL == result) - { - return; - } - - memset(result, 0, sizeof(GLXWinConfig) * numConfigs); - n = 0; - -#define ADD_ATTR(a) { attrs[num_attrs++] = a; assert(num_attrs < NUM_ELEMENTS(attrs)); } - - ADD_ATTR(WGL_DRAW_TO_WINDOW_ARB); - ADD_ATTR(WGL_DRAW_TO_BITMAP_ARB); - ADD_ATTR(WGL_ACCELERATION_ARB); - ADD_ATTR(WGL_SWAP_LAYER_BUFFERS_ARB); - ADD_ATTR(WGL_NUMBER_OVERLAYS_ARB); - ADD_ATTR(WGL_NUMBER_UNDERLAYS_ARB); - ADD_ATTR(WGL_TRANSPARENT_ARB); - ADD_ATTR(WGL_TRANSPARENT_RED_VALUE_ARB); - ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); - ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); - ADD_ATTR(WGL_TRANSPARENT_ALPHA_VALUE_ARB); - ADD_ATTR(WGL_SUPPORT_OPENGL_ARB); - ADD_ATTR(WGL_DOUBLE_BUFFER_ARB); - ADD_ATTR(WGL_STEREO_ARB); - ADD_ATTR(WGL_PIXEL_TYPE_ARB); - ADD_ATTR(WGL_COLOR_BITS_ARB); - ADD_ATTR(WGL_RED_BITS_ARB); - ADD_ATTR(WGL_RED_SHIFT_ARB); - ADD_ATTR(WGL_GREEN_BITS_ARB); - ADD_ATTR(WGL_GREEN_SHIFT_ARB); - ADD_ATTR(WGL_BLUE_BITS_ARB); - ADD_ATTR(WGL_BLUE_SHIFT_ARB); - ADD_ATTR(WGL_ALPHA_BITS_ARB); - ADD_ATTR(WGL_ALPHA_SHIFT_ARB); - ADD_ATTR(WGL_ACCUM_RED_BITS_ARB); - ADD_ATTR(WGL_ACCUM_GREEN_BITS_ARB); - ADD_ATTR(WGL_ACCUM_BLUE_BITS_ARB); - ADD_ATTR(WGL_ACCUM_ALPHA_BITS_ARB); - ADD_ATTR(WGL_DEPTH_BITS_ARB); - ADD_ATTR(WGL_STENCIL_BITS_ARB); - ADD_ATTR(WGL_AUX_BUFFERS_ARB); - ADD_ATTR(WGL_SWAP_METHOD_ARB); - - if (screen->has_WGL_ARB_multisample) - { - // we may not query these attrs if WGL_ARB_multisample is not offered - ADD_ATTR(WGL_SAMPLE_BUFFERS_ARB); - ADD_ATTR(WGL_SAMPLES_ARB); - } - - if (screen->has_WGL_ARB_render_texture) - { - // we may not query these attrs if WGL_ARB_render_texture is not offered - ADD_ATTR(WGL_BIND_TO_TEXTURE_RGB_ARB); - ADD_ATTR(WGL_BIND_TO_TEXTURE_RGBA_ARB); - } - - if (screen->has_WGL_ARB_pbuffer) - { - // we may not query these attrs if WGL_ARB_pbuffer is not offered - ADD_ATTR(WGL_DRAW_TO_PBUFFER_ARB); - ADD_ATTR(WGL_MAX_PBUFFER_PIXELS_ARB); - ADD_ATTR(WGL_MAX_PBUFFER_WIDTH_ARB); - ADD_ATTR(WGL_MAX_PBUFFER_HEIGHT_ARB); - } - - /* fill in configs */ - for (i = 0; i < numConfigs; i++) - { - int sizevalues=num_attrs*sizeof(int); - int *values=(int*)_alloca(sizevalues); - - memset(values,0,sizevalues); - - c = &(result[i]); - c->base.next = NULL; - c->pixelFormatIndex = i+1; - - if (!wglGetPixelFormatAttribivARBWrapper(hdc, i+1, 0, num_attrs, attrs, values)) - { - ErrorF("wglGetPixelFormatAttribivARB failed for index %d, error %s\n", i+1, glxWinErrorMessage()); - break; - } - -#define ATTR_VALUE(a, d) getAttrValue(attrs, values, num_attrs, (a), (d)) - - if (!ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, 0)) - { - GLWIN_DEBUG_MSG("pixelFormat %d isn't WGL_SUPPORT_OPENGL_ARB, skipping", i+1); - continue; - } - - c->base.doubleBufferMode = ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, 0) ? GL_TRUE : GL_FALSE; - c->base.stereoMode = ATTR_VALUE(WGL_STEREO_ARB, 0) ? GL_TRUE : GL_FALSE; - - c->base.redBits = ATTR_VALUE(WGL_RED_BITS_ARB, 0); - c->base.greenBits = ATTR_VALUE(WGL_GREEN_BITS_ARB, 0); - c->base.blueBits = ATTR_VALUE(WGL_BLUE_BITS_ARB, 0); - c->base.alphaBits = ATTR_VALUE(WGL_ALPHA_BITS_ARB, 0); - - c->base.redMask = BITS_AND_SHIFT_TO_MASK(c->base.redBits, ATTR_VALUE(WGL_RED_SHIFT_ARB, 0)); - c->base.greenMask = BITS_AND_SHIFT_TO_MASK(c->base.greenBits, ATTR_VALUE(WGL_GREEN_SHIFT_ARB, 0)); - c->base.blueMask = BITS_AND_SHIFT_TO_MASK(c->base.blueBits, ATTR_VALUE(WGL_BLUE_SHIFT_ARB, 0)); - c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(c->base.alphaBits, ATTR_VALUE(WGL_ALPHA_SHIFT_ARB, 0)); - - switch (ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)) - { - case WGL_TYPE_COLORINDEX_ARB: - c->base.indexBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); - c->base.rgbBits = 0; - c->base.visualType = GLX_STATIC_COLOR; - break; - - case WGL_TYPE_RGBA_FLOAT_ARB: - GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_FLOAT_ARB, skipping", i+1); - continue; - - case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT: - GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT, skipping", i+1); - continue; - - case WGL_TYPE_RGBA_ARB: - c->base.indexBits = 0; - c->base.rgbBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); - c->base.visualType = GLX_TRUE_COLOR; - break; - - default: - ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_PIXEL_TYPE_ARB\n", ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)); - continue; - } - - c->base.accumRedBits = ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, 0); - c->base.accumGreenBits = ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, 0); - c->base.accumBlueBits = ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, 0); - c->base.accumAlphaBits = ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, 0); - - c->base.depthBits = ATTR_VALUE(WGL_DEPTH_BITS_ARB, 0); - c->base.stencilBits = ATTR_VALUE(WGL_STENCIL_BITS_ARB, 0); - c->base.numAuxBuffers = ATTR_VALUE(WGL_AUX_BUFFERS_ARB, 0); - - { - int layers = ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0) + ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0); - - if (layers > 0) - { - ErrorF("pixelFormat %d: has %d overlay, %d underlays which aren't currently handled", i, ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0), ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0)); - // XXX: need to iterate over layers? - } - } - c->base.level = 0; - - c->base.pixmapMode = 0; // ??? - c->base.visualID = -1; // will be set by __glXScreenInit() - - /* EXT_visual_rating / GLX 1.2 */ - switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) - { - default: - ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_ACCELERATION_ARB\n", ATTR_VALUE(WGL_ACCELERATION_ARB, 0)); - - case WGL_NO_ACCELERATION_ARB: - c->base.visualRating = GLX_SLOW_VISUAL_EXT; - break; - - case WGL_GENERIC_ACCELERATION_ARB: - case WGL_FULL_ACCELERATION_ARB: - c->base.visualRating = GLX_NONE_EXT; - break; - } - - /* EXT_visual_info / GLX 1.2 */ - // c->base.visualType is set above - if (ATTR_VALUE(WGL_TRANSPARENT_ARB, 0)) - { - c->base.transparentPixel = (c->base.visualType == GLX_TRUE_COLOR) ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT; - c->base.transparentRed = ATTR_VALUE(WGL_TRANSPARENT_RED_VALUE_ARB, 0); - c->base.transparentGreen = ATTR_VALUE(WGL_TRANSPARENT_GREEN_VALUE_ARB, 0); - c->base.transparentBlue = ATTR_VALUE(WGL_TRANSPARENT_BLUE_VALUE_ARB, 0); - c->base.transparentAlpha = ATTR_VALUE(WGL_TRANSPARENT_ALPHA_VALUE_ARB, 0); - c->base.transparentIndex = ATTR_VALUE(WGL_TRANSPARENT_INDEX_VALUE_ARB, 0); - } - else - { - c->base.transparentPixel = GLX_NONE_EXT; - c->base.transparentRed = GLX_NONE; - c->base.transparentGreen = GLX_NONE; - c->base.transparentBlue = GLX_NONE; - c->base.transparentAlpha = GLX_NONE; - c->base.transparentIndex = GLX_NONE; - } - - /* ARB_multisample / SGIS_multisample */ - if (screen->has_WGL_ARB_multisample) - { - c->base.sampleBuffers = ATTR_VALUE(WGL_SAMPLE_BUFFERS_ARB, 0); - c->base.samples = ATTR_VALUE(WGL_SAMPLES_ARB, 0); - } - else - { - c->base.sampleBuffers = 0; - c->base.samples = 0; - } - - /* SGIX_fbconfig / GLX 1.3 */ - c->base.drawableType = ((ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB, 0) ? GLX_WINDOW_BIT : 0) - | (ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, 0) ? GLX_PIXMAP_BIT : 0) - | (ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, 0) ? GLX_PBUFFER_BIT : 0)); - c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; // Hmmm ??? - c->base.xRenderable = GL_TRUE; - c->base.fbconfigID = -1; // will be set by __glXScreenInit() - - /* SGIX_pbuffer / GLX 1.3 */ - if (screen->has_WGL_ARB_pbuffer) - { - c->base.maxPbufferWidth = ATTR_VALUE(WGL_MAX_PBUFFER_WIDTH_ARB, -1); - c->base.maxPbufferHeight = ATTR_VALUE(WGL_MAX_PBUFFER_HEIGHT_ARB, -1); - c->base.maxPbufferPixels = ATTR_VALUE(WGL_MAX_PBUFFER_PIXELS_ARB, -1); - } - else - { - c->base.maxPbufferWidth = -1; - c->base.maxPbufferHeight = -1; - c->base.maxPbufferPixels = -1; - } - c->base.optimalPbufferWidth = 0; // there is no optimal value - c->base.optimalPbufferHeight = 0; - - /* SGIX_visual_select_group */ - // arrange for visuals with the best acceleration to be preferred in selection - switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) - { - case WGL_FULL_ACCELERATION_ARB: - c->base.visualSelectGroup = 2; - break; - - case WGL_GENERIC_ACCELERATION_ARB: - c->base.visualSelectGroup = 1; - break; - - default: - case WGL_NO_ACCELERATION_ARB: - c->base.visualSelectGroup = 0; - break; - } - - /* OML_swap_method */ - switch (ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)) - { - case WGL_SWAP_EXCHANGE_ARB: - c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; - break; - - case WGL_SWAP_COPY_ARB: - c->base.swapMethod = GLX_SWAP_COPY_OML; - break; - - default: - ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_SWAP_METHOD_ARB\n", ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)); - - case WGL_SWAP_UNDEFINED_ARB: - c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; - } - - /* EXT_import_context */ - c->base.screen = screen->base.pScreen->myNum; - - /* EXT_texture_from_pixmap */ - /* - Mesa's DRI configs always have bindToTextureRgb/Rgba TRUE (see driCreateConfigs(), so setting - bindToTextureRgb/bindToTextureRgba to FALSE means that swrast can't find any fbConfigs to use, - so setting these to 0, even if we know bindToTexture isn't available, isn't a good idea... - */ - if (screen->has_WGL_ARB_render_texture) - { - c->base.bindToTextureRgb = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGB_ARB, -1); - c->base.bindToTextureRgba = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGBA_ARB, -1); - } - else - { - c->base.bindToTextureRgb = -1; - c->base.bindToTextureRgba = -1; - } - c->base.bindToMipmapTexture = -1; - c->base.bindToTextureTargets = GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT | GLX_TEXTURE_RECTANGLE_BIT_EXT; - c->base.yInverted = -1; - - n++; - - // update previous config to point to this config - if (prev) - prev->base.next = &(c->base); - - prev = c; - } - - screen->base.numFBConfigs = n; - screen->base.fbconfigs = &(result->base); -} +/* + * File: indirect.c + * Purpose: A GLX implementation that uses Windows OpenGL library + * + * Authors: Alexander Gottwald + * Jon TURNEY + * + * Copyright (c) Jon TURNEY 2009 + * Copyright (c) Alexander Gottwald 2004 + * + * Portions of this file are copied from GL/apple/indirect.c, + * which contains the following copyright: + * + * Copyright (c) 2007, 2008, 2009 Apple Inc. + * Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved. + * Copyright (c) 2002 Greg Parker. All Rights Reserved. + * + * Portions of this file are copied from Mesa's xf86glx.c, + * which contains the following copyright: + * + * Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas. + * All Rights Reserved. + * + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included in + * all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR + * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, + * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + */ + +/* + TODO: + - hook up remaining unimplemented extensions + - research what guarantees glXWaitX, glXWaitGL are supposed to offer, and implement then + using GdiFlush and/or glFinish + - pbuffer clobbering: we don't get async notification, but can we arrange to emit the + event when we notice it's been clobbered? at the very least, check if it's been clobbered + before using it? + - are the __GLXConfig * we get handed back ones we are made (so we can extend the structure + with privates?) Or are they created inside the GLX core as well? +*/ + +/* + MSDN clarifications: + + It says SetPixelFormat()'s PIXELFORMATDESCRIPTOR pointer argument has no effect + except on metafiles, this seems to mean that as it's ok to supply NULL if the DC + is not for a metafile + + wglMakeCurrent ignores the hdc if hglrc is NULL, so wglMakeCurrent(NULL, NULL) + is used to make no context current + +*/ + +#ifdef HAVE_XWIN_CONFIG_H +#include +#endif + +#include "glwindows.h" +#include +#include +#include +#include +#include + +#include +#include +#include "win.h" + +extern Bool g_fXdmcpEnabled; +extern Bool g_fNativeGl; + +#define NUM_ELEMENTS(x) (sizeof(x)/ sizeof(x[1])) + +/* ---------------------------------------------------------------------- */ +/* + * structure definitions + */ + +typedef struct __GLXWinContext __GLXWinContext; +typedef struct __GLXWinDrawable __GLXWinDrawable; +typedef struct __GLXWinScreen glxWinScreen; +typedef struct __GLXWinConfig GLXWinConfig; + +struct __GLXWinContext { + __GLXcontext base; + HGLRC ctx; /* Windows GL Context */ + __GLXWinContext *shareContext; /* Context with which we will share display lists and textures */ + HWND hwnd; /* For detecting when HWND has changed */ + BOOL GlCtxWnd; /* TRUE when we should destroy the window when the context is destroyed. */ +}; + +struct __GLXWinDrawable +{ + __GLXdrawable base; + __GLXWinContext *drawContext; + __GLXWinContext *readContext; + + /* If this drawable is GLX_DRAWABLE_PBUFFER */ + HPBUFFERARB hPbuffer; + + /* If this drawable is GLX_DRAWABLE_PIXMAP */ + HDC dibDC; + HBITMAP hDIB; + HBITMAP hOldDIB; /* original DIB for DC */ + void *pOldBits; /* original pBits for this drawable's pixmap */ +}; + +struct __GLXWinScreen +{ + __GLXscreen base; + + /* Supported GLX extensions */ + unsigned char glx_enable_bits[__GLX_EXT_BYTES]; + + Bool has_WGL_ARB_multisample; + Bool has_WGL_ARB_pixel_format; + Bool has_WGL_ARB_pbuffer; + Bool has_WGL_ARB_render_texture; + + /* wrapped screen functions */ + RealizeWindowProcPtr RealizeWindow; + UnrealizeWindowProcPtr UnrealizeWindow; + CopyWindowProcPtr CopyWindow; + PositionWindowProcPtr PositionWindow; +}; + +struct __GLXWinConfig +{ + __GLXconfig base; + int pixelFormatIndex; +}; + +/* ---------------------------------------------------------------------- */ +/* + * Various debug helpers + */ + +#define GLWIN_DEBUG_HWND(hwnd) \ + if (glxWinDebugSettings.dumpHWND) { \ + char buffer[1024]; \ + if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; \ + GLWIN_DEBUG_MSG("Got HWND %p for window '%s'", hwnd, buffer); \ + } + +glxWinDebugSettingsRec glxWinDebugSettings = { 0, 0, 0, 0, 0, 0}; + +static void glxWinInitDebugSettings(void) +{ + char *envptr; + + envptr = getenv("GLWIN_ENABLE_DEBUG"); + if (envptr != NULL) + glxWinDebugSettings.enableDebug = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_PFD"); + if (envptr != NULL) + glxWinDebugSettings.dumpPFD = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_HWND"); + if (envptr != NULL) + glxWinDebugSettings.dumpHWND = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DUMP_DC"); + if (envptr != NULL) + glxWinDebugSettings.dumpDC = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_GLCALL_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableGLcallTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_ENABLE_WGLCALL_TRACE"); + if (envptr != NULL) + glxWinDebugSettings.enableWGLcallTrace = (atoi(envptr) == 1); + + envptr = getenv("GLWIN_DEBUG_ALL"); + if (envptr != NULL) + { + glxWinDebugSettings.enableDebug = 1; + glxWinDebugSettings.enableTrace = 1; + glxWinDebugSettings.dumpPFD = 1; + glxWinDebugSettings.dumpHWND = 1; + glxWinDebugSettings.dumpDC = 1; + glxWinDebugSettings.enableGLcallTrace = 1; + glxWinDebugSettings.enableWGLcallTrace = 1; + } +} + +static +const char *glxWinErrorMessage(void) +{ + static char errorbuffer[1024]; + + if (!FormatMessage( + FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, + NULL, + GetLastError(), + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), + (LPTSTR) &errorbuffer, + sizeof(errorbuffer), + NULL )) + { + snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error in FormatMessage: %08x!", (unsigned)GetLastError()); + } + + if (errorbuffer[strlen(errorbuffer)-1] == '\n') + errorbuffer[strlen(errorbuffer)-1] = 0; + + return errorbuffer; +} + +static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd); + +#define DUMP_PFD_FLAG(flag) \ + if (pfd->dwFlags & flag) { \ + ErrorF("%s%s", pipesym, #flag); \ + pipesym = " | "; \ + } + +static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd) +{ + const char *pipesym = ""; /* will be set after first flag dump */ + ErrorF("PIXELFORMATDESCRIPTOR:\n"); + ErrorF("nSize = %u\n", pfd->nSize); + ErrorF("nVersion = %u\n", pfd->nVersion); + ErrorF("dwFlags = %lu = {", pfd->dwFlags); + DUMP_PFD_FLAG(PFD_DOUBLEBUFFER); + DUMP_PFD_FLAG(PFD_STEREO); + DUMP_PFD_FLAG(PFD_DRAW_TO_WINDOW); + DUMP_PFD_FLAG(PFD_DRAW_TO_BITMAP); + DUMP_PFD_FLAG(PFD_SUPPORT_GDI); + DUMP_PFD_FLAG(PFD_SUPPORT_OPENGL); + DUMP_PFD_FLAG(PFD_GENERIC_FORMAT); + DUMP_PFD_FLAG(PFD_NEED_PALETTE); + DUMP_PFD_FLAG(PFD_NEED_SYSTEM_PALETTE); + DUMP_PFD_FLAG(PFD_SWAP_EXCHANGE); + DUMP_PFD_FLAG(PFD_SWAP_COPY); + DUMP_PFD_FLAG(PFD_SWAP_LAYER_BUFFERS); + DUMP_PFD_FLAG(PFD_GENERIC_ACCELERATED); + DUMP_PFD_FLAG(PFD_DEPTH_DONTCARE); + DUMP_PFD_FLAG(PFD_DOUBLEBUFFER_DONTCARE); + DUMP_PFD_FLAG(PFD_STEREO_DONTCARE); + ErrorF("}\n"); + + ErrorF("iPixelType = %hu = %s\n", pfd->iPixelType, + (pfd->iPixelType == PFD_TYPE_RGBA ? "PFD_TYPE_RGBA" : "PFD_TYPE_COLORINDEX")); + ErrorF("cColorBits = %hhu\n", pfd->cColorBits); + ErrorF("cRedBits = %hhu\n", pfd->cRedBits); + ErrorF("cRedShift = %hhu\n", pfd->cRedShift); + ErrorF("cGreenBits = %hhu\n", pfd->cGreenBits); + ErrorF("cGreenShift = %hhu\n", pfd->cGreenShift); + ErrorF("cBlueBits = %hhu\n", pfd->cBlueBits); + ErrorF("cBlueShift = %hhu\n", pfd->cBlueShift); + ErrorF("cAlphaBits = %hhu\n", pfd->cAlphaBits); + ErrorF("cAlphaShift = %hhu\n", pfd->cAlphaShift); + ErrorF("cAccumBits = %hhu\n", pfd->cAccumBits); + ErrorF("cAccumRedBits = %hhu\n", pfd->cAccumRedBits); + ErrorF("cAccumGreenBits = %hhu\n", pfd->cAccumGreenBits); + ErrorF("cAccumBlueBits = %hhu\n", pfd->cAccumBlueBits); + ErrorF("cAccumAlphaBits = %hhu\n", pfd->cAccumAlphaBits); + ErrorF("cDepthBits = %hhu\n", pfd->cDepthBits); + ErrorF("cStencilBits = %hhu\n", pfd->cStencilBits); + ErrorF("cAuxBuffers = %hhu\n", pfd->cAuxBuffers); + ErrorF("iLayerType = %hhu\n", pfd->iLayerType); + ErrorF("bReserved = %hhu\n", pfd->bReserved); + ErrorF("dwLayerMask = %lu\n", pfd->dwLayerMask); + ErrorF("dwVisibleMask = %lu\n", pfd->dwVisibleMask); + ErrorF("dwDamageMask = %lu\n", pfd->dwDamageMask); + ErrorF("\n"); +} + +static const char * +visual_class_name(int cls) +{ + switch (cls) { + case GLX_STATIC_COLOR: + return "StaticColor"; + case GLX_PSEUDO_COLOR: + return "PseudoColor"; + case GLX_STATIC_GRAY: + return "StaticGray"; + case GLX_GRAY_SCALE: + return "GrayScale"; + case GLX_TRUE_COLOR: + return "TrueColor"; + case GLX_DIRECT_COLOR: + return "DirectColor"; + default: + return "-none-"; + } +} + +static const char * +swap_method_name(int mthd) +{ + switch (mthd) + { + case GLX_SWAP_EXCHANGE_OML: + return "xchg"; + case GLX_SWAP_COPY_OML: + return "copy"; + case GLX_SWAP_UNDEFINED_OML: + return " "; + default: + return "????"; + } +} + +static void +fbConfigsDump(unsigned int n, __GLXconfig *c) +{ + ErrorF("%d fbConfigs\n", n); + ErrorF("pxf vis fb render Ste aux accum MS drawable Group/\n"); + ErrorF("idx ID ID VisualType Depth Lvl RGB CI DB Swap reo R G B A Z S buf AR AG AB AA bufs num W P Pb Float Trans Caveat\n"); + ErrorF("-----------------------------------------------------------------------------------------------------------------------------\n"); + + while (c != NULL) + { + unsigned int i = ((GLXWinConfig *)c)->pixelFormatIndex; + + ErrorF("%3d %2x %2x " + "%-11s" + " %3d %3d %s %s %s %s %s " + "%2d %2d %2d %2d " + "%2d %2d " + "%2d " + "%2d %2d %2d %2d" + " %2d %2d" + " %s %s %s " + " %s " + " %s " + " %d %s" + "\n", + i, c->visualID, c->fbconfigID, + visual_class_name(c->visualType), + c->rgbBits ? c->rgbBits : c->indexBits, + c->level, + (c->renderType & GLX_RGBA_BIT) ? "y" : ".", + (c->renderType & GLX_COLOR_INDEX_BIT) ? "y" : ".", + c->doubleBufferMode ? "y" : ".", + swap_method_name(c->swapMethod), + c->stereoMode ? "y" : ".", + c->redBits, c->greenBits, c->blueBits, c->alphaBits, + c->depthBits, c->stencilBits, + c->numAuxBuffers, + c->accumRedBits, c->accumGreenBits, c->accumBlueBits, c->accumAlphaBits, + c->sampleBuffers, c->samples, + (c->drawableType & GLX_WINDOW_BIT) ? "y" : ".", + (c->drawableType & GLX_PIXMAP_BIT) ? "y" : ".", + (c->drawableType & GLX_PBUFFER_BIT) ? "y" : ".", + ".", + (c->transparentPixel != GLX_NONE_EXT) ? "y" : ".", + c->visualSelectGroup, (c->visualRating == GLX_SLOW_VISUAL_EXT) ? "*" : " "); + + c = c->next; + } +} + +/* ---------------------------------------------------------------------- */ +/* + * Forward declarations + */ + +static __GLXscreen *glxWinScreenProbe(ScreenPtr pScreen); +static __GLXcontext *glxWinCreateContext(__GLXscreen *screen, + __GLXconfig *modes, + __GLXcontext *baseShareContext); +static __GLXdrawable *glxWinCreateDrawable(__GLXscreen *screen, + DrawablePtr pDraw, + int type, + XID drawId, + __GLXconfig *conf); + +static Bool glxWinRealizeWindow(WindowPtr pWin); +static Bool glxWinUnrealizeWindow(WindowPtr pWin); +static void glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc); +static Bool glxWinPositionWindow(WindowPtr pWindow, int x, int y); + +static HDC glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HDC *hdc, HWND *hwnd); +static void glxWinReleaseDC(HWND hwnd, HDC hdc, __GLXWinDrawable *draw); + +static void glxWinCreateConfigs(HDC dc, glxWinScreen *screen); +static void glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen); +static int fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride); +static int fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen); + +/* ---------------------------------------------------------------------- */ +/* + * The GLX provider + */ + +__GLXprovider __glXWGLProvider = { + glxWinScreenProbe, + "Win32 native WGL", + NULL +}; + +void +glxWinPushNativeProvider(void) +{ + if (g_fNativeGl) + GlxPushProvider(&__glXWGLProvider); +} + +/* ---------------------------------------------------------------------- */ +/* + * Screen functions + */ + +static void +glxWinScreenDestroy(__GLXscreen *screen) +{ + GLWIN_DEBUG_MSG("glxWinScreenDestroy(%p)", screen); + __glXScreenDestroy(screen); + xfree(screen); +} + +static int +glxWinScreenSwapInterval(__GLXdrawable *drawable, int interval) +{ + BOOL ret = wglSwapIntervalEXTWrapper(interval); + if (!ret) + { + ErrorF("wglSwapIntervalEXT interval %d failed:%s\n", interval, glxWinErrorMessage()); + } + return ret; +} + +static LRESULT CALLBACK GlxWindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) +{ + if (uMsg== WM_NCHITTEST) + { + return HTTRANSPARENT; + } + else + return DefWindowProc(hwnd, uMsg, wParam, lParam); +} + +/* This is called by GlxExtensionInit() asking the GLX provider if it can handle the screen... */ +static __GLXscreen * +glxWinScreenProbe(ScreenPtr pScreen) +{ + glxWinScreen *screen; + const char *gl_extensions; + const char *wgl_extensions; + HWND hwnd; + HDC hdc; + HGLRC hglrc; + + GLWIN_DEBUG_MSG("glxWinScreenProbe"); + + glxWinInitDebugSettings(); + + if (pScreen == NULL) + return NULL; + + if (!winCheckScreenAiglxIsSupported(pScreen)) + { + LogMessage(X_ERROR,"AIGLX: No native OpenGL in modes with a root window\n"); + return NULL; + } + + screen = xcalloc(1, sizeof(glxWinScreen)); + + if (NULL == screen) + return NULL; + + /* Wrap RealizeWindow, UnrealizeWindow and CopyWindow on this screen */ + screen->RealizeWindow = pScreen->RealizeWindow; + pScreen->RealizeWindow = glxWinRealizeWindow; + screen->UnrealizeWindow = pScreen->UnrealizeWindow; + pScreen->UnrealizeWindow = glxWinUnrealizeWindow; + screen->CopyWindow = pScreen->CopyWindow; + pScreen->CopyWindow = glxWinCopyWindow; + screen->PositionWindow = pScreen->PositionWindow; + pScreen->PositionWindow = glxWinPositionWindow; + + /* Dump out some useful information about the native renderer */ + + // create window class + { + static wATOM glTestWndClass = 0; + if (glTestWndClass == 0) + { + WNDCLASSEX wc; + glTestWndClass=1; + wc.cbSize = sizeof(WNDCLASSEX); + wc.style = CS_OWNDC ; + wc.lpfnWndProc = GlxWindowProc; + wc.cbClsExtra = 0; + wc.cbWndExtra = 0; + wc.hInstance = GetModuleHandle(NULL); + wc.hIcon = 0; + wc.hCursor = 0; + wc.hbrBackground = 0; + wc.lpszMenuName = NULL; + wc.lpszClassName = WIN_GL_WINDOW_CLASS; + wc.hIconSm = 0; + RegisterClassEx (&wc); + } + } + + // create an invisible window for a scratch DC + hwnd = CreateWindowExA(0, + WIN_GL_WINDOW_CLASS, + "XWin GL Renderer Capabilities Test Window", + 0, 0, 0, 0, 0, NULL, NULL, GetModuleHandle(NULL), NULL); + if (hwnd == NULL) + LogMessage(X_ERROR,"AIGLX: Couldn't create a window for render capabilities testing\n"); + + hdc = GetDC(hwnd); + + // we must set a pixel format before we can create a context, just use the first one... + SetPixelFormat(hdc, 1, NULL); + hglrc = wglCreateContext(hdc); + wglMakeCurrent(hdc, hglrc); + + // initialize wgl extension proc pointers (don't call them before here...) + // (but we need to have a current context for them to be resolvable) + wglResolveExtensionProcs(); + + ErrorF("GL_VERSION: %s\n", glGetStringWrapperNonstatic(GL_VERSION)); + ErrorF("GL_VENDOR: %s\n", glGetStringWrapperNonstatic(GL_VENDOR)); + ErrorF("GL_RENDERER: %s\n", glGetStringWrapperNonstatic(GL_RENDERER)); + gl_extensions = (const char *)glGetStringWrapperNonstatic(GL_EXTENSIONS); + ErrorF("GL_EXTENSIONS: %s\n", gl_extensions); + wgl_extensions = wglGetExtensionsStringARBWrapper(hdc); + if (!wgl_extensions) + wgl_extensions=""; + ErrorF("WGL_EXTENSIONS:%s\n", wgl_extensions); + + // Can you see the problem here? The extensions string is DC specific + // Different DCs for windows on a multimonitor system driven by multiple cards + // might have completely different capabilities. Of course, good luck getting + // those screens to be accelerated in XP and earlier... + + { + // testing facility to not use any WGL extensions + char *envptr = getenv("GLWIN_NO_WGL_EXTENSIONS"); + if ((envptr != NULL) && (atoi(envptr) != 0)) + { + ErrorF("GLWIN_NO_WGL_EXTENSIONS is set, ignoring WGL_EXTENSIONS\n"); + wgl_extensions = ""; + } + } + + { + Bool glx_sgi_make_current_read = FALSE; + + // + // Based on the WGL extensions available, enable various GLX extensions + // XXX: make this table-driven ? + // + memset(screen->glx_enable_bits, 0, __GLX_EXT_BYTES); + + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_info"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_visual_rating"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_import_context"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_OML_swap_method"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_fbconfig"); + + if (strstr(wgl_extensions, "WGL_ARB_make_current_read")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_make_current_read"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_make_current_read\n"); + glx_sgi_make_current_read = TRUE; + } + + if (strstr(gl_extensions, "GL_WIN_swap_hint")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_copy_sub_buffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_MESA_copy_sub_buffer\n"); + } + + if (strstr(wgl_extensions, "WGL_EXT_swap_control")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGI_swap_control"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_MESA_swap_control"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGI_swap_control and GLX_MESA_swap_control\n"); + } + +/* // Hmm? screen->texOffset */ +/* if (strstr(wgl_extensions, "WGL_ARB_render_texture")) */ +/* { */ +/* __glXEnableExtension(screen->glx_enable_bits, "GLX_EXT_texture_from_pixmap"); */ +/* LogMessage(X_INFO, "AIGLX: GLX_EXT_texture_from_pixmap backed by buffer objects\n"); */ +/* screen->has_WGL_ARB_render_texture = TRUE; */ +/* } */ + + if (strstr(wgl_extensions, "WGL_ARB_pbuffer")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIX_pbuffer"); + LogMessage(X_INFO, "AIGLX: enabled GLX_SGIX_pbuffer\n"); + screen->has_WGL_ARB_pbuffer = TRUE; + } + + if (strstr(wgl_extensions, "WGL_ARB_multisample")) + { + __glXEnableExtension(screen->glx_enable_bits, "GLX_ARB_multisample"); + __glXEnableExtension(screen->glx_enable_bits, "GLX_SGIS_multisample"); + LogMessage(X_INFO, "AIGLX: enabled GLX_ARB_multisample and GLX_SGIS_multisample\n"); + screen->has_WGL_ARB_multisample = TRUE; + } + + screen->base.destroy = glxWinScreenDestroy; + screen->base.createContext = glxWinCreateContext; + screen->base.createDrawable = glxWinCreateDrawable; + screen->base.swapInterval = glxWinScreenSwapInterval; + screen->base.hyperpipeFuncs = NULL; + screen->base.swapBarrierFuncs = NULL; + screen->base.pScreen = pScreen; + + if (strstr(wgl_extensions, "WGL_ARB_pixel_format")) + { + glxWinCreateConfigsExt(hdc, screen); + screen->has_WGL_ARB_pixel_format = TRUE; + } + else + { + glxWinCreateConfigs(hdc, screen); + screen->has_WGL_ARB_pixel_format = FALSE; + } + // Initializes screen->base.fbconfigs and screen->base.numFBConfigs + + /* These will be set by __glXScreenInit */ + screen->base.visuals = NULL; + screen->base.numVisuals = 0; + + __glXScreenInit(&screen->base, pScreen); + + // dump out fbConfigs now fbConfigIds and visualIDs have been assigned + fbConfigsDump(screen->base.numFBConfigs, screen->base.fbconfigs); + + // Override the GL extensions string set by __glXScreenInit() + screen->base.GLextensions = xstrdup(gl_extensions); + + // Generate the GLX extensions string (overrides that set by __glXScreenInit()) + { + unsigned int buffer_size = __glXGetExtensionString(screen->glx_enable_bits, NULL); + if (buffer_size > 0) + { + if (screen->base.GLXextensions != NULL) + { + xfree(screen->base.GLXextensions); + } + + screen->base.GLXextensions = xnfalloc(buffer_size); + __glXGetExtensionString(screen->glx_enable_bits, screen->base.GLXextensions); + } + } + + // + // Override the GLX version (__glXScreenInit() sets it to "1.2") + // if we have all the needed extensionsto operate as a higher version + // + // SGIX_fbconfig && SGIX_pbuffer && SGI_make_current_read -> 1.3 + // ARB_multisample -> 1.4 + // + if (screen->has_WGL_ARB_pbuffer && glx_sgi_make_current_read) + { + xfree(screen->base.GLXversion); + + if (screen->has_WGL_ARB_multisample) + { + screen->base.GLXversion = xstrdup("1.4"); + screen->base.GLXminor=4; + /* + XXX: this just controls the version string returned to glXQueryServerString() + there is currently no way to control the version number the server returns to + glXQueryVersion()... + */ + } + else + { + screen->base.GLXversion = xstrdup("1.3"); + screen->base.GLXminor=3; + } + LogMessage(X_INFO, "AIGLX: Set GLX version to %s\n", screen->base.GLXversion); + } + } + + wglMakeCurrent(NULL, NULL); + wglDeleteContext(hglrc); + ReleaseDC(hwnd, hdc); + DestroyWindow(hwnd); + + return &screen->base; +} + +/* ---------------------------------------------------------------------- */ +/* + * Window functions + */ + +static Bool +glxWinRealizeWindow(WindowPtr pWin) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + winWindowPriv(pWin); + + GLWIN_DEBUG_MSG("glxWinRealizeWindow"); + + /* Allow the window to be created (RootlessRealizeWindow is inside our wrap) */ + pScreen->RealizeWindow = screenPriv->RealizeWindow; + result = pScreen->RealizeWindow(pWin); + pScreen->RealizeWindow = glxWinRealizeWindow; + + // Check if ze need to move the window\n + if (g_fXdmcpEnabled && pWinPriv->hWnd) + { + ShowWindow(pWinPriv->hWnd,SW_SHOW); + } + return result; +} + + +static void +glxWinCopyWindow(WindowPtr pWindow, DDXPointRec ptOldOrg, RegionPtr prgnSrc) +{ + __GLXWinDrawable *pGlxDraw; + ScreenPtr pScreen = pWindow->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + + GLWIN_TRACE_MSG("glxWinCopyWindow pWindow %p", pWindow); + + dixLookupResourceByType((pointer) &pGlxDraw, pWindow->drawable.id, __glXDrawableRes, + NullClient, DixUnknownAccess); + + + /* + Discard any CopyWindow requests if a GL drawing context is pointing at the window + + For regions which are being drawn by GL, the shadow framebuffer doesn't have the + correct bits, so we wish to avoid shadow framebuffer damage occuring, which will + cause those incorrect bits to be transferred to the display.... + */ + if (pGlxDraw && pGlxDraw->drawContext) + { + GLWIN_DEBUG_MSG("glxWinCopyWindow: discarding"); + return; + } + + GLWIN_DEBUG_MSG("glxWinCopyWindow - passing to hw layer"); + + pScreen->CopyWindow = screenPriv->CopyWindow; + pScreen->CopyWindow(pWindow, ptOldOrg, prgnSrc); + pScreen->CopyWindow = glxWinCopyWindow; + +} + +static Bool +glxWinPositionWindow(WindowPtr pWin, int x, int y) +{ + Bool result; + __GLXWinDrawable *pGlxDraw; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *) glxGetScreen(pScreen); + winWindowPriv(pWin); + + pScreen->PositionWindow = screenPriv->PositionWindow; + result = pScreen->PositionWindow(pWin, x, y); + pScreen->PositionWindow = glxWinPositionWindow; + + if (g_fXdmcpEnabled && pWinPriv->hWnd) + { + MoveWindow(pWinPriv->hWnd, + pWin->drawable.x, + pWin->drawable.y, + pWin->drawable.width, + pWin->drawable.height, + FALSE); + } + return result; +} + + +static Bool +glxWinUnrealizeWindow(WindowPtr pWin) +{ + Bool result; + ScreenPtr pScreen = pWin->drawable.pScreen; + glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen); + winWindowPriv(pWin); + + GLWIN_DEBUG_MSG("glxWinUnrealizeWindow"); + + pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow; + result = pScreen->UnrealizeWindow(pWin); + pScreen->UnrealizeWindow = glxWinUnrealizeWindow; + + if (g_fXdmcpEnabled && pWinPriv->hWnd) + ShowWindow(pWinPriv->hWnd,SW_HIDE); + + return result; +} + +/* ---------------------------------------------------------------------- */ +/* + * Drawable functions + */ + +static GLboolean +glxWinDrawableSwapBuffers(__GLXdrawable *base) +{ + HDC dc; + HWND hwnd; + BOOL ret; + __GLXWinDrawable *draw = (__GLXWinDrawable *)base; + + /* Swap buffers on the last active context for drawing on the drawable */ + if (draw->drawContext == NULL) + { + GLWIN_TRACE_MSG("glxWinSwapBuffers - no context for drawable"); + return GL_FALSE; + } + + GLWIN_TRACE_MSG("glxWinSwapBuffers on drawable %p, last context %p (native ctx %p)", base, draw->drawContext, draw->drawContext->ctx); + + /* + draw->drawContext->base.drawPriv will not be set if the context is not current anymore, + but if it is, it should point to this drawable.... + */ + assert((draw->drawContext->base.drawPriv == NULL) || (draw->drawContext->base.drawPriv == base)); + + dc = glxWinMakeDC(draw->drawContext, draw, &dc, &hwnd); + if (dc == NULL) + return GL_FALSE; + + ret = wglSwapLayerBuffers(dc, WGL_SWAP_MAIN_PLANE); + + glxWinReleaseDC(hwnd, dc, draw); + + if (!ret) + { + ErrorF("wglSwapBuffers failed: %s\n", glxWinErrorMessage()); + return GL_FALSE; + } + + return GL_TRUE; +} + +static void +glxWinDrawableCopySubBuffer(__GLXdrawable *drawable, + int x, int y, int w, int h) +{ + glAddSwapHintRectWINWrapperNonstatic(x, y, w, h); + glxWinDrawableSwapBuffers(drawable); +} + +static void +glxWinDrawableDestroy(__GLXdrawable *base) +{ + __GLXWinDrawable *glxPriv = (__GLXWinDrawable *)base; + + if (glxPriv->drawContext && (__glXLastContext == &((glxPriv->drawContext)->base))) + { + // if this context is current and has unflushed commands, say we have flushed them + // (don't actually flush them, the window is going away anyhow, and an implict flush occurs + // on the next context change) + // (GLX core considers it an error when we try to select a new current context if the old one + // has unflushed commands, but the window has disappeared..) + __GLX_NOTE_FLUSHED_CMDS(__glXLastContext); + __glXLastContext = NULL; + } + + if (glxPriv->hPbuffer) + if (!wglDestroyPbufferARBWrapper(glxPriv->hPbuffer)) + { + ErrorF("wglDestroyPbufferARB failed: %s\n", glxWinErrorMessage()); + } + + if (glxPriv->dibDC) + { + // restore the default DIB + SelectObject(glxPriv->dibDC, glxPriv->hOldDIB); + + if (!DeleteDC(glxPriv->dibDC)) + { + ErrorF("DeleteDC failed: %s\n", glxWinErrorMessage()); + } + } + + if (glxPriv->hDIB) + { + if (!DeleteObject(glxPriv->hDIB)) + { + ErrorF("DeleteObject failed: %s\n", glxWinErrorMessage()); + } + + ((PixmapPtr)glxPriv->base.pDraw)->devPrivate.ptr = glxPriv->pOldBits; + } + + GLWIN_DEBUG_MSG("glxWinDestroyDrawable"); + xfree(glxPriv); +} + +static __GLXdrawable * +glxWinCreateDrawable(__GLXscreen *screen, + DrawablePtr pDraw, + int type, + XID drawId, + __GLXconfig *conf) +{ + __GLXWinDrawable *glxPriv; + + glxPriv = xalloc(sizeof *glxPriv); + + if (glxPriv == NULL) + return NULL; + + memset(glxPriv, 0, sizeof *glxPriv); + + if(!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, drawId, conf)) { + xfree(glxPriv); + return NULL; + } + + glxPriv->base.destroy = glxWinDrawableDestroy; + glxPriv->base.swapBuffers = glxWinDrawableSwapBuffers; + glxPriv->base.copySubBuffer = glxWinDrawableCopySubBuffer; + // glxPriv->base.waitX what are these for? + // glxPriv->base.waitGL + + GLWIN_DEBUG_MSG("glxWinCreateDrawable %p", glxPriv); + + return &glxPriv->base; +} + +/* ---------------------------------------------------------------------- */ +/* + * Texture functions + */ + +static +int glxWinBindTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + ErrorF("glxWinBindTexImage: not implemented\n"); + return FALSE; +} + +static +int glxWinReleaseTexImage(__GLXcontext *baseContext, + int buffer, + __GLXdrawable *pixmap) +{ + ErrorF(" glxWinReleaseTexImage: not implemented\n"); + return FALSE; +} + +/* ---------------------------------------------------------------------- */ +/* + * Lazy update context implementation + * + * WGL contexts are created for a specific HDC, so we cannot create the WGL + * context in glxWinCreateContext(), we must defer creation until the context + * is actually used on a specifc drawable which is connected to a native window, + * pbuffer or DIB + * + * The WGL context may be used on other, compatible HDCs, so we don't need to + * recreate it for every new native window + * + * XXX: I wonder why we can't create the WGL context on the screen HDC ? + * Basically we assume all HDCs are compatible at the moment: if they are not + * we are in a muddle, there was some code in the old implementation to attempt + * to transparently migrate a context to a new DC by copying state and sharing + * lists with the old one... + */ + +static void +glxWinSetPixelFormat(__GLXWinContext *gc, HDC hdc, int bppOverride, int drawableTypeOverride) +{ + __GLXscreen *screen = gc->base.pGlxScreen; + glxWinScreen *winScreen = (glxWinScreen *)screen; + + __GLXconfig *config = gc->base.config; + GLXWinConfig *winConfig = (GLXWinConfig *)config; + + GLWIN_DEBUG_MSG("glxWinSetPixelFormat: pixelFormatIndex %d", winConfig->pixelFormatIndex); + + /* + Normally, we can just use the the pixelFormatIndex corresponding + to the fbconfig which has been specified by the client + */ + + if (!((bppOverride && (bppOverride != (config->redBits + config->greenBits + config->blueBits) )) + || ((config->drawableType & drawableTypeOverride) == 0))) + { + if (!SetPixelFormat(hdc, winConfig->pixelFormatIndex, NULL)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + return; + } + + /* + However, in certain special cases this pixel format will be incompatible with the + use we are going to put it to, so we need to re-evaluate the pixel format to use: + + 1) When PFD_DRAW_TO_BITMAP is set, ChoosePixelFormat() always returns a format with + the cColorBits we asked for, so we need to ensure it matches the bpp of the bitmap + + 2) Applications may assume that visuals selected with glXChooseVisual() work with + pixmap drawables (there is no attribute to explicitly query for pixmap drawable + support as there is for glXChooseFBConfig()) + (it's arguable this is an error in the application, but we try to make it work) + + pixmap rendering is always slow for us, so we don't want to choose those visuals + by default, but if the actual drawable type we're trying to select the context + on (drawableTypeOverride) isn't supported by the selected fbConfig, reconsider + and see if we can find a suitable one... + */ + ErrorF("glxWinSetPixelFormat: having second thoughts: cColorbits %d, bppOveride %d; config->drawableType %d, drawableTypeOverride %d\n", + (config->redBits + config->greenBits + config->blueBits), bppOverride, config->drawableType, drawableTypeOverride); + + if (!winScreen->has_WGL_ARB_pixel_format) + { + PIXELFORMATDESCRIPTOR pfd; + int pixelFormat; + + /* convert fbConfig to PFD */ + if (fbConfigToPixelFormat(gc->base.config, &pfd, drawableTypeOverride)) + { + ErrorF("glxWinSetPixelFormat: fbConfigToPixelFormat failed\n"); + return; + } + + if (glxWinDebugSettings.dumpPFD) + pfdOut(&pfd); + + if (bppOverride) + { + GLWIN_DEBUG_MSG("glxWinSetPixelFormat: Forcing bpp from %d to %d\n", pfd.cColorBits, bppOverride); + pfd.cColorBits = bppOverride; + } + + pixelFormat = ChoosePixelFormat(hdc, &pfd); + if (pixelFormat == 0) + { + ErrorF("ChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("ChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); + ErrorF("ChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); + + if (!SetPixelFormat(hdc, pixelFormat, &pfd)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + } + else + { + int pixelFormat = fbConfigToPixelFormatIndex(hdc, gc->base.config, drawableTypeOverride, winScreen); + if (pixelFormat == 0) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d", pixelFormat); + ErrorF("wglChoosePixelFormat: chose pixelFormatIndex %d (rather than %d as originally planned)\n", pixelFormat, winConfig->pixelFormatIndex); + + if (!SetPixelFormat(hdc, pixelFormat, NULL)) + { + ErrorF("SetPixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + } +} + +static HDC +glxWinMakeDC(__GLXWinContext *gc, __GLXWinDrawable *draw, HDC *hdc, HWND *hwnd) +{ + *hdc = NULL; + *hwnd = NULL; + + if (draw == NULL) + { + GLWIN_TRACE_MSG("No drawable for context %p (native ctx %p)", gc, gc->ctx); + return NULL; + } + + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + winWindowInfoRec winInfo; + WindowPtr pWin; + + pWin = (WindowPtr) draw->base.pDraw; + if (pWin == NULL) + { + GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin); + return NULL; + } + + winGetWindowInfo(pWin, &winInfo); + *hwnd = winInfo.hwnd; + + if (winInfo.hwnd == NULL) + { + ErrorF("No HWND error: %s\n", glxWinErrorMessage()); + return NULL; + } + + *hdc = GetDC(winInfo.hwnd); + + if (*hdc == NULL) + ErrorF("GetDC error: %s\n", glxWinErrorMessage()); + + /* Check if the hwnd has changed... */ + if (winInfo.hwnd != gc->hwnd) + { + if (glxWinDebugSettings.enableTrace) + GLWIN_DEBUG_HWND(winInfo.hwnd); + + GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, winInfo.hwnd); + gc->hwnd = winInfo.hwnd; + + /* We must select a pixelformat, but SetPixelFormat can only be called once for a window... */ + glxWinSetPixelFormat(gc, *hdc, 0, GLX_WINDOW_BIT); + } + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + *hdc = wglGetPbufferDCARBWrapper(draw->hPbuffer); + + if (*hdc == NULL) + ErrorF("GetDC (pbuffer) error: %s\n", glxWinErrorMessage()); + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + *hdc = draw->dibDC; + } + break; + + default: + { + ErrorF("glxWinMakeDC: tried to makeDC for unhandled drawable type %d\n", draw->base.type); + } + } + + if (glxWinDebugSettings.dumpDC) + GLWIN_DEBUG_MSG("Got HDC %p", *hdc); + + return *hdc; +} + +static void +glxWinReleaseDC(HWND hwnd, HDC hdc,__GLXWinDrawable *draw) +{ + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + ReleaseDC(hwnd, hdc); + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + if (!wglReleasePbufferDCARBWrapper(draw->hPbuffer, hdc)) + { + ErrorF("wglReleasePbufferDCARB error: %s\n", glxWinErrorMessage()); + } + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + // don't release DC, the memory DC lives as long as the bitmap + + // We must ensure that all GDI drawing into the bitmap has completed + // in case we subsequently access the bits from it + GdiFlush(); + } + break; + + default: + { + ErrorF("glxWinReleaseDC: tried to releaseDC for unhandled drawable type %d\n", draw->base.type); + } + } +} + +static void +glxWinDeferredCreateContext(__GLXWinContext *gc, __GLXWinDrawable *draw) +{ + HDC dc; + HWND hwnd; + winWindowPriv(((WindowPtr) draw->base.pDraw)); + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw); + + switch (draw->base.type) + { + case GLX_DRAWABLE_WINDOW: + { + winWindowInfoRec winInfo; + WindowPtr pWin = (WindowPtr) draw->base.pDraw; + + if (!(gc->base.config->drawableType & GLX_WINDOW_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_WINDOW_BIT to a GLX_DRAWABLE_WINDOW drawable\n"); + } + + if (pWin == NULL) + { + GLWIN_DEBUG_MSG("Deferring until X window is created"); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pWin %p", pWin); + + winGetWindowInfo(pWin, &winInfo); + if (winInfo.hwnd == NULL) + { + GLWIN_DEBUG_MSG("Deferring until native window is created"); + return; + } + } + break; + + case GLX_DRAWABLE_PBUFFER: + { + if (draw->hPbuffer == NULL) + { + __GLXscreen *screen; + glxWinScreen *winScreen; + int pixelFormat; + // XXX: which DC are supposed to use??? + HDC screenDC = GetDC(NULL); + + if (!(gc->base.config->drawableType & GLX_PBUFFER_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PBUFFER_BIT to a GLX_DRAWABLE_PBUFFER drawable\n"); + } + + screen = gc->base.pGlxScreen; + winScreen = (glxWinScreen *)screen; + + pixelFormat = fbConfigToPixelFormatIndex(screenDC, gc->base.config, GLX_DRAWABLE_PBUFFER, winScreen); + if (pixelFormat == 0) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + return; + } + + draw->hPbuffer = wglCreatePbufferARBWrapper(screenDC, pixelFormat, draw->base.pDraw->width, draw->base.pDraw->height, NULL); + ReleaseDC(NULL, screenDC); + + if (draw->hPbuffer == NULL) + { + ErrorF("wglCreatePbufferARBWrapper error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: pBuffer %p created for drawable %p", draw->hPbuffer, draw); + } + } + break; + + case GLX_DRAWABLE_PIXMAP: + { + if (draw->dibDC == NULL) + { + BITMAPINFOHEADER bmpHeader; + void *pBits; + + ZeroMemory(&bmpHeader,sizeof(bmpHeader)); + bmpHeader.biSize=sizeof(bmpHeader); + bmpHeader.biWidth=draw->base.pDraw->width; + bmpHeader.biHeight=draw->base.pDraw->height; + bmpHeader.biPlanes=1; + bmpHeader.biBitCount=draw->base.pDraw->bitsPerPixel; + bmpHeader.biCompression=BI_RGB; + + if (!(gc->base.config->drawableType & GLX_PIXMAP_BIT)) + { + ErrorF("glxWinDeferredCreateContext: tried to attach a context whose fbConfig doesn't have drawableType GLX_PIXMAP_BIT to a GLX_DRAWABLE_PIXMAP drawable\n"); + } + + draw->dibDC = CreateCompatibleDC(NULL); + if (draw->dibDC == NULL) + { + ErrorF("CreateCompatibleDC error: %s\n", glxWinErrorMessage()); + return; + } + + draw->hDIB = CreateDIBSection(draw->dibDC, (BITMAPINFO *)&bmpHeader, DIB_RGB_COLORS, &pBits, 0, 0); + if (draw->dibDC == NULL) + { + ErrorF("CreateDIBSection error: %s\n", glxWinErrorMessage()); + return; + } + + // XXX: CreateDIBSection insists on allocating the bitmap memory for us, so we're going to + // need some jiggery pokery to point the underlying X Drawable's bitmap at the same set of bits + // so that they can be read with XGetImage as well as glReadPixels, assuming the formats are + // even compatible ... + draw->pOldBits = ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr; + ((PixmapPtr)draw->base.pDraw)->devPrivate.ptr = pBits; + + // Select the DIB into the DC + draw->hOldDIB = SelectObject(draw->dibDC, draw->hDIB); + if (!draw->hOldDIB) + { + ErrorF("SelectObject error: %s\n", glxWinErrorMessage()); + } + + // Set the pixel format of the bitmap + glxWinSetPixelFormat(gc, draw->dibDC, draw->base.pDraw->bitsPerPixel, GLX_PIXMAP_BIT); + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: DIB bitmap %p created for drawable %p", draw->hDIB, draw); + } + } + break; + + default: + { + ErrorF("glxWinDeferredCreateContext: tried to attach unhandled drawable type %d\n", draw->base.type); + return; + } + } + + dc = glxWinMakeDC(gc, draw, &dc, &hwnd); + gc->ctx = wglCreateContext(dc); + gc->GlCtxWnd = pWinPriv->GlCtxWnd; + + glxWinReleaseDC(hwnd, dc, draw); + + if (gc->ctx == NULL) + { + ErrorF("wglCreateContext error: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attached context %p to native context %p drawable %p", gc, gc->ctx, draw); + + // if the native context was created successfully, shareLists if needed + if (gc->ctx && gc->shareContext) + { + GLWIN_DEBUG_MSG("glxWinCreateContextReal shareLists with context %p (native ctx %p)", gc->shareContext, gc->shareContext->ctx); + + if (!wglShareLists(gc->shareContext->ctx, gc->ctx)) + { + ErrorF("wglShareLists error: %s\n", glxWinErrorMessage()); + } + } +} + +/* ---------------------------------------------------------------------- */ +/* + * Context functions + */ + + +/* Context manipulation routines should return TRUE on success, FALSE on failure */ +static int +glxWinContextMakeCurrent(__GLXcontext *base) +{ + __GLXWinContext *gc = (__GLXWinContext *)base; + BOOL ret; + HDC drawDC; + HDC readDC = NULL; + __GLXdrawable *drawPriv; + __GLXdrawable *readPriv; + HWND hdrawwnd; + HWND hreadwnd; + + GLWIN_TRACE_MSG("glxWinContextMakeCurrent context %p (native ctx %p)", gc, gc->ctx); + glWinCallDelta(); + + /* Keep a note of the last active context in the drawable */ + drawPriv = gc->base.drawPriv; + ((__GLXWinDrawable *)drawPriv)->drawContext = gc; + + if (gc->ctx == NULL) + { + glxWinDeferredCreateContext(gc, (__GLXWinDrawable *)drawPriv); + } + + if (gc->ctx == NULL) + { + ErrorF("glxWinContextMakeCurrent: Native context is NULL\n"); + return FALSE; + } + + drawDC = glxWinMakeDC(gc, (__GLXWinDrawable *)drawPriv, &drawDC, &hdrawwnd); + if (drawDC == NULL) + { + ErrorF("glxWinMakeDC failed for drawDC\n"); + return FALSE; + } + + if ((gc->base.readPriv != NULL) && (gc->base.readPriv != gc->base.drawPriv)) + { + // XXX: should only occur with WGL_ARB_make_current_read + /* + If there is a separate read drawable, create a separate read DC, and + use the wglMakeContextCurrent extension to make the context current drawing + to one DC and reading from the other + */ + readPriv = gc->base.readPriv; + readDC = glxWinMakeDC(gc, (__GLXWinDrawable *)readPriv, &readDC, &hreadwnd); + if (readDC == NULL) + { + ErrorF("glxWinMakeDC failed for readDC\n"); + glxWinReleaseDC(hdrawwnd, drawDC, (__GLXWinDrawable *)drawPriv); + return FALSE; + } + + ret = wglMakeContextCurrentARBWrapper(drawDC, readDC, gc->ctx); + if (!ret) + { + ErrorF("wglMakeContextCurrent error: %s\n", glxWinErrorMessage()); + } + } + else + { + /* Otherwise, just use wglMakeCurrent */ + ret = wglMakeCurrent(drawDC, gc->ctx); + if (!ret) + { + ErrorF("wglMakeCurrent error: %s\n", glxWinErrorMessage()); + } + } + + // apparently make current could fail if the context is current in a different thread, + // but that shouldn't be able to happen in the current server... + + glxWinReleaseDC(hdrawwnd, drawDC, (__GLXWinDrawable *)drawPriv); + if (readDC) + glxWinReleaseDC(hreadwnd, readDC, (__GLXWinDrawable *)readPriv); + + return ret; +} + +static int +glxWinContextLoseCurrent(__GLXcontext *base) +{ + BOOL ret; + __GLXWinContext *gc = (__GLXWinContext *)base; + + GLWIN_TRACE_MSG("glxWinContextLoseCurrent context %p (native ctx %p)", gc, gc->ctx); + glWinCallDelta(); + + ret = wglMakeCurrent(NULL, NULL); /* We don't need a DC when setting no current context */ + if (!ret) + ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage()); + + __glXLastContext = NULL; /* Mesa does this; why? */ + // __glXFlushContextCache() + + return TRUE; +} + +static int +glxWinContextCopy(__GLXcontext *dst_base, __GLXcontext *src_base, unsigned long mask) +{ + __GLXWinContext *dst = (__GLXWinContext *)dst_base; + __GLXWinContext *src = (__GLXWinContext *)src_base; + BOOL ret; + + GLWIN_DEBUG_MSG("glxWinContextCopy"); + + ret = wglCopyContext(src->ctx, dst->ctx, mask); + if (!ret) + { + ErrorF("wglCopyContext error: %s\n", glxWinErrorMessage()); + } + + return ret; +} + +static int +glxWinContextForceCurrent(__GLXcontext *base) +{ + /* wglMakeCurrent always flushes the previous context, so this is equivalent to glxWinContextMakeCurrent */ + return glxWinContextMakeCurrent(base); +} + +static void +glxWinContextDestroy(__GLXcontext *base) +{ + __GLXWinContext *gc = (__GLXWinContext *)base; + + if (gc != NULL) + { + GLWIN_DEBUG_MSG("GLXcontext %p destroyed (native ctx %p)", base, gc->ctx); + + if (gc->ctx) + { + BOOL ret; + /* It's bad style to delete the context while it's still current */ + if (wglGetCurrentContext() == gc->ctx) + { + wglMakeCurrent(NULL, NULL); + } + + ret = wglDeleteContext(gc->ctx); + if (!ret) + ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage()); + gc->ctx = NULL; + if (gc->GlCtxWnd) DestroyWindow(gc->hwnd); + } + + xfree(gc); + } +} + +static __GLXcontext * +glxWinCreateContext(__GLXscreen *screen, + __GLXconfig *modes, + __GLXcontext *baseShareContext) +{ + __GLXWinContext *context; + __GLXWinContext *shareContext = (__GLXWinContext *)baseShareContext; + + static __GLXtextureFromPixmap glxWinTextureFromPixmap = + { + glxWinBindTexImage, + glxWinReleaseTexImage + }; + + context = (__GLXWinContext *)xcalloc(1, sizeof(__GLXWinContext)); + + if (!context) + return NULL; + + memset(context, 0, sizeof *context); + context->base.destroy = glxWinContextDestroy; + context->base.makeCurrent = glxWinContextMakeCurrent; + context->base.loseCurrent = glxWinContextLoseCurrent; + context->base.copy = glxWinContextCopy; + context->base.forceCurrent = glxWinContextForceCurrent; + context->base.textureFromPixmap = &glxWinTextureFromPixmap; + context->base.config = modes; + context->base.pGlxScreen = screen; + + // actual native GL context creation is deferred until attach() + context->ctx = NULL; + context->shareContext = shareContext; + + glWinSetupDispatchTable(); + + GLWIN_DEBUG_MSG("GLXcontext %p created", context); + + return &(context->base); +} + +/* ---------------------------------------------------------------------- */ +/* + * Utility functions + */ + +static int +fbConfigToPixelFormat(__GLXconfig *mode, PIXELFORMATDESCRIPTOR *pfdret, int drawableTypeOverride) +{ + PIXELFORMATDESCRIPTOR pfd = { + sizeof(PIXELFORMATDESCRIPTOR), /* size of this pfd */ + 1, /* version number */ + PFD_SUPPORT_OPENGL, /* support OpenGL */ + PFD_TYPE_RGBA, /* RGBA type */ + 24, /* 24-bit color depth */ + 0, 0, 0, 0, 0, 0, /* color bits ignored */ + 0, /* no alpha buffer */ + 0, /* shift bit ignored */ + 0, /* no accumulation buffer */ + 0, 0, 0, 0, /* accum bits ignored */ + 32, /* 32-bit z-buffer */ + 0, /* no stencil buffer */ + 0, /* no auxiliary buffer */ + PFD_MAIN_PLANE, /* main layer */ + 0, /* reserved */ + 0, 0, 0 /* layer masks ignored */ + }; + + if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) + pfd.dwFlags |= PFD_DRAW_TO_WINDOW; /* support window */ + + if ((mode->drawableType | drawableTypeOverride) & GLX_PIXMAP_BIT) + pfd.dwFlags |= (PFD_DRAW_TO_BITMAP | PFD_SUPPORT_GDI); /* supports software rendering to bitmap */ + + if (mode->stereoMode) { + pfd.dwFlags |= PFD_STEREO; + } + if (mode->doubleBufferMode) { + pfd.dwFlags |= PFD_DOUBLEBUFFER; + } + + pfd.iPixelType = PFD_TYPE_RGBA; + pfd.cColorBits = mode->redBits + mode->greenBits + mode->blueBits; + pfd.cRedBits = mode->redBits; + pfd.cRedShift = 0; /* FIXME */ + pfd.cGreenBits = mode->greenBits; + pfd.cGreenShift = 0; /* FIXME */ + pfd.cBlueBits = mode->blueBits; + pfd.cBlueShift = 0; /* FIXME */ + pfd.cAlphaBits = mode->alphaBits; + pfd.cAlphaShift = 0; /* FIXME */ + + pfd.cAccumBits = mode->accumRedBits + mode->accumGreenBits + mode->accumBlueBits + mode->accumAlphaBits; + pfd.cAccumRedBits = mode->accumRedBits; + pfd.cAccumGreenBits = mode->accumGreenBits; + pfd.cAccumBlueBits = mode->accumBlueBits; + pfd.cAccumAlphaBits = mode->accumAlphaBits; + + pfd.cDepthBits = mode->depthBits; + pfd.cStencilBits = mode->stencilBits; + pfd.cAuxBuffers = mode->numAuxBuffers; + + /* mode->level ? */ + /* mode->pixmapMode ? */ + + *pfdret = pfd; + + return 0; +} + +#define SET_ATTR_VALUE(attr, value) { attribList[i++] = attr; attribList[i++] = value; assert(i < NUM_ELEMENTS(attribList)); } + +static int +fbConfigToPixelFormatIndex(HDC hdc, __GLXconfig *mode, int drawableTypeOverride, glxWinScreen *winScreen) +{ + UINT numFormats; + unsigned int i = 0; + + /* convert fbConfig to attr-value list */ + int attribList[60]; + + SET_ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, TRUE); + SET_ATTR_VALUE(WGL_PIXEL_TYPE_ARB, (mode->visualType == GLX_TRUE_COLOR) ? WGL_TYPE_RGBA_ARB : WGL_TYPE_COLORINDEX_ARB); + SET_ATTR_VALUE(WGL_COLOR_BITS_ARB, (mode->visualType == GLX_TRUE_COLOR) ? mode->rgbBits : mode->indexBits); + SET_ATTR_VALUE(WGL_RED_BITS_ARB, mode->redBits); + SET_ATTR_VALUE(WGL_GREEN_BITS_ARB, mode->greenBits); + SET_ATTR_VALUE(WGL_BLUE_BITS_ARB, mode->blueBits); + SET_ATTR_VALUE(WGL_ALPHA_BITS_ARB, mode->alphaBits); + SET_ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, mode->accumRedBits); + SET_ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, mode->accumGreenBits); + SET_ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, mode->accumBlueBits); + SET_ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, mode->accumAlphaBits); + SET_ATTR_VALUE(WGL_DEPTH_BITS_ARB, mode->depthBits); + SET_ATTR_VALUE(WGL_STENCIL_BITS_ARB, mode->stencilBits); + SET_ATTR_VALUE(WGL_AUX_BUFFERS_ARB, mode->numAuxBuffers); + + if (mode->doubleBufferMode) + SET_ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, TRUE); + + if (mode->stereoMode) + SET_ATTR_VALUE(WGL_STEREO_ARB, TRUE); + + // Some attributes are only added to the list if the value requested is not 'don't care', as exactly matching that is daft.. + if (mode->swapMethod == GLX_SWAP_EXCHANGE_OML) + SET_ATTR_VALUE(WGL_SWAP_METHOD_ARB, WGL_SWAP_EXCHANGE_ARB); + + if (mode->swapMethod == GLX_SWAP_COPY_OML) + SET_ATTR_VALUE(WGL_SWAP_COPY_ARB, TRUE); + + // XXX: this should probably be the other way around, but that messes up drawableTypeOverride + if (mode->visualRating == GLX_SLOW_VISUAL_EXT) + SET_ATTR_VALUE(WGL_ACCELERATION_ARB, WGL_NO_ACCELERATION_ARB); + + // must support all the drawable types the mode supports + if ((mode->drawableType | drawableTypeOverride) & GLX_WINDOW_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB,TRUE); + + // XXX: this is a horrible hacky heuristic, in fact this whole drawableTypeOverride thing is a bad idea + // try to avoid asking for formats which don't exist (by not asking for all when adjusting the config to include the drawableTypeOverride) + if (drawableTypeOverride == GLX_WINDOW_BIT) + { + if (mode->drawableType & GLX_PIXMAP_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); + + if (mode->drawableType & GLX_PBUFFER_BIT) + if (winScreen->has_WGL_ARB_pbuffer) + SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); + } + else + { + if (drawableTypeOverride & GLX_PIXMAP_BIT) + SET_ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, TRUE); + + if (drawableTypeOverride & GLX_PBUFFER_BIT) + if (winScreen->has_WGL_ARB_pbuffer) + SET_ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, TRUE); + } + + SET_ATTR_VALUE(0, 0); // terminator + + /* choose the first match */ + { + int pixelFormatIndex; + + if (!wglChoosePixelFormatARBWrapper(hdc, attribList, NULL, 1, &pixelFormatIndex, &numFormats)) + { + ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage()); + } + else + { + if (numFormats > 0) + { + GLWIN_DEBUG_MSG("wglChoosePixelFormat: chose pixelFormatIndex %d)", pixelFormatIndex); + return pixelFormatIndex; + } + else + ErrorF("wglChoosePixelFormat couldn't decide\n"); + } + } + + return 0; +} + +/* ---------------------------------------------------------------------- */ + +#define BITS_AND_SHIFT_TO_MASK(bits,mask) (((1<<(bits))-1) << (mask)) + +// +// Create the GLXconfigs using DescribePixelFormat() +// +static void +glxWinCreateConfigs(HDC hdc, glxWinScreen *screen) +{ + GLXWinConfig *c, *result, *prev = NULL; + int numConfigs = 0; + int i = 0; + int n = 0; + PIXELFORMATDESCRIPTOR pfd; + + GLWIN_DEBUG_MSG("glxWinCreateConfigs"); + + screen->base.numFBConfigs = 0; + screen->base.fbconfigs = NULL; + + // get the number of pixelformats + numConfigs = DescribePixelFormat(hdc, 1, sizeof(PIXELFORMATDESCRIPTOR), NULL); + GLWIN_DEBUG_MSG("DescribePixelFormat says %d possible pixel formats", numConfigs); + + /* alloc */ + result = xalloc(sizeof(GLXWinConfig) * numConfigs); + + if (NULL == result) + { + return; + } + + memset(result, 0, sizeof(GLXWinConfig) * numConfigs); + n = 0; + + /* fill in configs */ + for (i = 0; i < numConfigs; i++) + { + int rc; + + c = &(result[i]); + c->base.next = NULL; + c->pixelFormatIndex = i+1; + + rc = DescribePixelFormat(hdc, i+1, sizeof(PIXELFORMATDESCRIPTOR), &pfd); + + if (!rc) + { + ErrorF("DescribePixelFormat failed for index %d, error %s\n", i+1, glxWinErrorMessage()); + break; + } + + if (glxWinDebugSettings.dumpPFD) + pfdOut(&pfd); + + if (!(pfd.dwFlags & (PFD_DRAW_TO_WINDOW | PFD_DRAW_TO_BITMAP)) || !(pfd.dwFlags & PFD_SUPPORT_OPENGL)) + { + GLWIN_DEBUG_MSG("pixelFormat %d has unsuitable flags 0x%08lx, skipping", i+1, pfd.dwFlags); + continue; + } + + c->base.doubleBufferMode = (pfd.dwFlags & PFD_DOUBLEBUFFER) ? GL_TRUE : GL_FALSE; + c->base.stereoMode = (pfd.dwFlags & PFD_STEREO) ? GL_TRUE : GL_FALSE; + + c->base.redBits = pfd.cRedBits; + c->base.greenBits = pfd.cGreenBits; + c->base.blueBits = pfd.cBlueBits; + c->base.alphaBits = pfd.cAlphaBits; + + c->base.redMask = BITS_AND_SHIFT_TO_MASK(pfd.cRedBits, pfd.cRedShift); + c->base.greenMask = BITS_AND_SHIFT_TO_MASK(pfd.cGreenBits, pfd.cGreenShift); + c->base.blueMask = BITS_AND_SHIFT_TO_MASK(pfd.cBlueBits, pfd.cBlueShift); + c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(pfd.cAlphaBits, pfd.cAlphaShift); + + c->base.rgbBits = pfd.cColorBits; + + if (pfd.iPixelType == PFD_TYPE_COLORINDEX) + { + c->base.indexBits = pfd.cColorBits; + } + else + { + c->base.indexBits = 0; + } + + c->base.accumRedBits = pfd.cAccumRedBits; + c->base.accumGreenBits = pfd.cAccumGreenBits; + c->base.accumBlueBits = pfd.cAccumBlueBits; + c->base.accumAlphaBits = pfd.cAccumAlphaBits; + // pfd.cAccumBits; + + c->base.depthBits = pfd.cDepthBits; + c->base.stencilBits = pfd.cStencilBits; + c->base.numAuxBuffers = pfd.cAuxBuffers; + + // pfd.iLayerType; // ignored + c->base.level = 0; + // pfd.dwLayerMask; // ignored + // pfd.dwDamageMask; // ignored + + c->base.pixmapMode = 0; + c->base.visualID = -1; // will be set by __glXScreenInit() + + /* EXT_visual_rating / GLX 1.2 */ + if (pfd.dwFlags & PFD_GENERIC_FORMAT) + { + c->base.visualRating = GLX_SLOW_VISUAL_EXT; + } + else + { + // PFD_GENERIC_ACCELERATED is not considered, so this may be MCD or ICD acclerated... + c->base.visualRating = GLX_NONE_EXT; + } + + /* EXT_visual_info / GLX 1.2 */ + if (pfd.iPixelType == PFD_TYPE_COLORINDEX) + { + c->base.visualType = GLX_STATIC_COLOR; + } + else + { + c->base.visualType = GLX_TRUE_COLOR; + } + + // pfd.dwVisibleMask; ??? + c->base.transparentPixel = GLX_NONE; + c->base.transparentRed = GLX_NONE; + c->base.transparentGreen = GLX_NONE; + c->base.transparentBlue = GLX_NONE; + c->base.transparentAlpha = GLX_NONE; + c->base.transparentIndex = GLX_NONE; + + /* ARB_multisample / SGIS_multisample */ + c->base.sampleBuffers = 0; + c->base.samples = 0; + + /* SGIX_fbconfig / GLX 1.3 */ + c->base.drawableType = (((pfd.dwFlags & PFD_DRAW_TO_WINDOW) ? GLX_WINDOW_BIT : 0) + | ((pfd.dwFlags & PFD_DRAW_TO_BITMAP) ? GLX_PIXMAP_BIT : 0)); + c->base.renderType = GLX_RGBA_BIT; + c->base.xRenderable = GL_TRUE; + c->base.fbconfigID = -1; // will be set by __glXScreenInit() + + /* SGIX_pbuffer / GLX 1.3 */ + // XXX: How can we find these values out ??? + c->base.maxPbufferWidth = -1; + c->base.maxPbufferHeight = -1; + c->base.maxPbufferPixels = -1; + c->base.optimalPbufferWidth = 0; // there is no optimal value + c->base.optimalPbufferHeight = 0; + + /* SGIX_visual_select_group */ + // arrange for visuals with the best acceleration to be preferred in selection + switch (pfd.dwFlags & (PFD_GENERIC_FORMAT | PFD_GENERIC_ACCELERATED)) + { + case 0: + c->base.visualSelectGroup = 2; + break; + + case PFD_GENERIC_ACCELERATED: + c->base.visualSelectGroup = 1; + break; + + case PFD_GENERIC_FORMAT: + c->base.visualSelectGroup = 0; + break; + + default: + ; + // "can't happen" + } + + /* OML_swap_method */ + if (pfd.dwFlags & PFD_SWAP_EXCHANGE) + c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; + else if (pfd.dwFlags & PFD_SWAP_COPY) + c->base.swapMethod = GLX_SWAP_COPY_OML; + else + c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; + + /* EXT_import_context */ + c->base.screen = screen->base.pScreen->myNum; + + /* EXT_texture_from_pixmap */ + c->base.bindToTextureRgb = -1; + c->base.bindToTextureRgba = -1; + c->base.bindToMipmapTexture = -1; + c->base.bindToTextureTargets = -1; + c->base.yInverted = -1; + + n++; + + // update previous config to point to this config + if (prev) + prev->base.next = &(c->base); + + prev = c; + } + + GLWIN_DEBUG_MSG("found %d pixelFormats suitable for conversion to fbConfigs", n); + + screen->base.numFBConfigs = n; + screen->base.fbconfigs = &(result->base); +} + +// helper function to access an attribute value from an attribute value array by attribute +static +int getAttrValue(const int attrs[], int values[], unsigned int num, int attr, int fallback) +{ + unsigned int i; + for (i = 0; i < num; i++) + { + if (attrs[i] == attr) + { + GLWIN_TRACE_MSG("getAttrValue attr 0x%x, value %d", attr, values[i]); + return values[i]; + } + } + + ErrorF("getAttrValue failed to find attr 0x%x, using default value %d\n", attr, fallback); + return fallback; +} + +// +// Create the GLXconfigs using wglGetPixelFormatAttribfvARB() extension +// +static void +glxWinCreateConfigsExt(HDC hdc, glxWinScreen *screen) +{ + GLXWinConfig *c, *result, *prev = NULL; + int i = 0; + int n = 0; + + const int attr = WGL_NUMBER_PIXEL_FORMATS_ARB; + int numConfigs; + + int attrs[50]; + unsigned int num_attrs = 0; + + GLWIN_DEBUG_MSG("glxWinCreateConfigsExt"); + + screen->base.numFBConfigs = 0; + screen->base.fbconfigs = NULL; + + if (!wglGetPixelFormatAttribivARBWrapper(hdc, 0, 0, 1, &attr, &numConfigs)) + { + ErrorF("wglGetPixelFormatAttribivARB failed for WGL_NUMBER_PIXEL_FORMATS_ARB: %s\n", glxWinErrorMessage()); + return; + } + + GLWIN_DEBUG_MSG("wglGetPixelFormatAttribivARB says %d possible pixel formats", numConfigs); + + /* alloc */ + result = xalloc(sizeof(GLXWinConfig) * numConfigs); + + if (NULL == result) + { + return; + } + + memset(result, 0, sizeof(GLXWinConfig) * numConfigs); + n = 0; + +#define ADD_ATTR(a) { attrs[num_attrs++] = a; assert(num_attrs < NUM_ELEMENTS(attrs)); } + + ADD_ATTR(WGL_DRAW_TO_WINDOW_ARB); + ADD_ATTR(WGL_DRAW_TO_BITMAP_ARB); + ADD_ATTR(WGL_ACCELERATION_ARB); + ADD_ATTR(WGL_SWAP_LAYER_BUFFERS_ARB); + ADD_ATTR(WGL_NUMBER_OVERLAYS_ARB); + ADD_ATTR(WGL_NUMBER_UNDERLAYS_ARB); + ADD_ATTR(WGL_TRANSPARENT_ARB); + ADD_ATTR(WGL_TRANSPARENT_RED_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_GREEN_VALUE_ARB); + ADD_ATTR(WGL_TRANSPARENT_ALPHA_VALUE_ARB); + ADD_ATTR(WGL_SUPPORT_OPENGL_ARB); + ADD_ATTR(WGL_DOUBLE_BUFFER_ARB); + ADD_ATTR(WGL_STEREO_ARB); + ADD_ATTR(WGL_PIXEL_TYPE_ARB); + ADD_ATTR(WGL_COLOR_BITS_ARB); + ADD_ATTR(WGL_RED_BITS_ARB); + ADD_ATTR(WGL_RED_SHIFT_ARB); + ADD_ATTR(WGL_GREEN_BITS_ARB); + ADD_ATTR(WGL_GREEN_SHIFT_ARB); + ADD_ATTR(WGL_BLUE_BITS_ARB); + ADD_ATTR(WGL_BLUE_SHIFT_ARB); + ADD_ATTR(WGL_ALPHA_BITS_ARB); + ADD_ATTR(WGL_ALPHA_SHIFT_ARB); + ADD_ATTR(WGL_ACCUM_RED_BITS_ARB); + ADD_ATTR(WGL_ACCUM_GREEN_BITS_ARB); + ADD_ATTR(WGL_ACCUM_BLUE_BITS_ARB); + ADD_ATTR(WGL_ACCUM_ALPHA_BITS_ARB); + ADD_ATTR(WGL_DEPTH_BITS_ARB); + ADD_ATTR(WGL_STENCIL_BITS_ARB); + ADD_ATTR(WGL_AUX_BUFFERS_ARB); + ADD_ATTR(WGL_SWAP_METHOD_ARB); + + if (screen->has_WGL_ARB_multisample) + { + // we may not query these attrs if WGL_ARB_multisample is not offered + ADD_ATTR(WGL_SAMPLE_BUFFERS_ARB); + ADD_ATTR(WGL_SAMPLES_ARB); + } + + if (screen->has_WGL_ARB_render_texture) + { + // we may not query these attrs if WGL_ARB_render_texture is not offered + ADD_ATTR(WGL_BIND_TO_TEXTURE_RGB_ARB); + ADD_ATTR(WGL_BIND_TO_TEXTURE_RGBA_ARB); + } + + if (screen->has_WGL_ARB_pbuffer) + { + // we may not query these attrs if WGL_ARB_pbuffer is not offered + ADD_ATTR(WGL_DRAW_TO_PBUFFER_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_PIXELS_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_WIDTH_ARB); + ADD_ATTR(WGL_MAX_PBUFFER_HEIGHT_ARB); + } + + /* fill in configs */ + for (i = 0; i < numConfigs; i++) + { + int sizevalues=num_attrs*sizeof(int); + int *values=(int*)_alloca(sizevalues); + + memset(values,0,sizevalues); + + c = &(result[i]); + c->base.next = NULL; + c->pixelFormatIndex = i+1; + + if (!wglGetPixelFormatAttribivARBWrapper(hdc, i+1, 0, num_attrs, attrs, values)) + { + ErrorF("wglGetPixelFormatAttribivARB failed for index %d, error %s\n", i+1, glxWinErrorMessage()); + break; + } + +#define ATTR_VALUE(a, d) getAttrValue(attrs, values, num_attrs, (a), (d)) + + if (!ATTR_VALUE(WGL_SUPPORT_OPENGL_ARB, 0)) + { + GLWIN_DEBUG_MSG("pixelFormat %d isn't WGL_SUPPORT_OPENGL_ARB, skipping", i+1); + continue; + } + + c->base.doubleBufferMode = ATTR_VALUE(WGL_DOUBLE_BUFFER_ARB, 0) ? GL_TRUE : GL_FALSE; + c->base.stereoMode = ATTR_VALUE(WGL_STEREO_ARB, 0) ? GL_TRUE : GL_FALSE; + + c->base.redBits = ATTR_VALUE(WGL_RED_BITS_ARB, 0); + c->base.greenBits = ATTR_VALUE(WGL_GREEN_BITS_ARB, 0); + c->base.blueBits = ATTR_VALUE(WGL_BLUE_BITS_ARB, 0); + c->base.alphaBits = ATTR_VALUE(WGL_ALPHA_BITS_ARB, 0); + + c->base.redMask = BITS_AND_SHIFT_TO_MASK(c->base.redBits, ATTR_VALUE(WGL_RED_SHIFT_ARB, 0)); + c->base.greenMask = BITS_AND_SHIFT_TO_MASK(c->base.greenBits, ATTR_VALUE(WGL_GREEN_SHIFT_ARB, 0)); + c->base.blueMask = BITS_AND_SHIFT_TO_MASK(c->base.blueBits, ATTR_VALUE(WGL_BLUE_SHIFT_ARB, 0)); + c->base.alphaMask = BITS_AND_SHIFT_TO_MASK(c->base.alphaBits, ATTR_VALUE(WGL_ALPHA_SHIFT_ARB, 0)); + + switch (ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)) + { + case WGL_TYPE_COLORINDEX_ARB: + c->base.indexBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); + c->base.rgbBits = 0; + c->base.visualType = GLX_STATIC_COLOR; + break; + + case WGL_TYPE_RGBA_FLOAT_ARB: + GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_FLOAT_ARB, skipping", i+1); + continue; + + case WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT: + GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_RGBA_UNSIGNED_FLOAT_EXT, skipping", i+1); + continue; + + case WGL_TYPE_RGBA_ARB: + c->base.indexBits = 0; + c->base.rgbBits = ATTR_VALUE(WGL_COLOR_BITS_ARB, 0); + c->base.visualType = GLX_TRUE_COLOR; + break; + + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_PIXEL_TYPE_ARB\n", ATTR_VALUE(WGL_PIXEL_TYPE_ARB, 0)); + continue; + } + + c->base.accumRedBits = ATTR_VALUE(WGL_ACCUM_RED_BITS_ARB, 0); + c->base.accumGreenBits = ATTR_VALUE(WGL_ACCUM_GREEN_BITS_ARB, 0); + c->base.accumBlueBits = ATTR_VALUE(WGL_ACCUM_BLUE_BITS_ARB, 0); + c->base.accumAlphaBits = ATTR_VALUE(WGL_ACCUM_ALPHA_BITS_ARB, 0); + + c->base.depthBits = ATTR_VALUE(WGL_DEPTH_BITS_ARB, 0); + c->base.stencilBits = ATTR_VALUE(WGL_STENCIL_BITS_ARB, 0); + c->base.numAuxBuffers = ATTR_VALUE(WGL_AUX_BUFFERS_ARB, 0); + + { + int layers = ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0) + ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0); + + if (layers > 0) + { + ErrorF("pixelFormat %d: has %d overlay, %d underlays which aren't currently handled", i, ATTR_VALUE(WGL_NUMBER_OVERLAYS_ARB,0), ATTR_VALUE(WGL_NUMBER_UNDERLAYS_ARB, 0)); + // XXX: need to iterate over layers? + } + } + c->base.level = 0; + + c->base.pixmapMode = 0; // ??? + c->base.visualID = -1; // will be set by __glXScreenInit() + + /* EXT_visual_rating / GLX 1.2 */ + switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) + { + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_ACCELERATION_ARB\n", ATTR_VALUE(WGL_ACCELERATION_ARB, 0)); + + case WGL_NO_ACCELERATION_ARB: + c->base.visualRating = GLX_SLOW_VISUAL_EXT; + break; + + case WGL_GENERIC_ACCELERATION_ARB: + case WGL_FULL_ACCELERATION_ARB: + c->base.visualRating = GLX_NONE_EXT; + break; + } + + /* EXT_visual_info / GLX 1.2 */ + // c->base.visualType is set above + if (ATTR_VALUE(WGL_TRANSPARENT_ARB, 0)) + { + c->base.transparentPixel = (c->base.visualType == GLX_TRUE_COLOR) ? GLX_TRANSPARENT_RGB_EXT : GLX_TRANSPARENT_INDEX_EXT; + c->base.transparentRed = ATTR_VALUE(WGL_TRANSPARENT_RED_VALUE_ARB, 0); + c->base.transparentGreen = ATTR_VALUE(WGL_TRANSPARENT_GREEN_VALUE_ARB, 0); + c->base.transparentBlue = ATTR_VALUE(WGL_TRANSPARENT_BLUE_VALUE_ARB, 0); + c->base.transparentAlpha = ATTR_VALUE(WGL_TRANSPARENT_ALPHA_VALUE_ARB, 0); + c->base.transparentIndex = ATTR_VALUE(WGL_TRANSPARENT_INDEX_VALUE_ARB, 0); + } + else + { + c->base.transparentPixel = GLX_NONE_EXT; + c->base.transparentRed = GLX_NONE; + c->base.transparentGreen = GLX_NONE; + c->base.transparentBlue = GLX_NONE; + c->base.transparentAlpha = GLX_NONE; + c->base.transparentIndex = GLX_NONE; + } + + /* ARB_multisample / SGIS_multisample */ + if (screen->has_WGL_ARB_multisample) + { + c->base.sampleBuffers = ATTR_VALUE(WGL_SAMPLE_BUFFERS_ARB, 0); + c->base.samples = ATTR_VALUE(WGL_SAMPLES_ARB, 0); + } + else + { + c->base.sampleBuffers = 0; + c->base.samples = 0; + } + + /* SGIX_fbconfig / GLX 1.3 */ + c->base.drawableType = ((ATTR_VALUE(WGL_DRAW_TO_WINDOW_ARB, 0) ? GLX_WINDOW_BIT : 0) + | (ATTR_VALUE(WGL_DRAW_TO_BITMAP_ARB, 0) ? GLX_PIXMAP_BIT : 0) + | (ATTR_VALUE(WGL_DRAW_TO_PBUFFER_ARB, 0) ? GLX_PBUFFER_BIT : 0)); + c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; // Hmmm ??? + c->base.xRenderable = GL_TRUE; + c->base.fbconfigID = -1; // will be set by __glXScreenInit() + + /* SGIX_pbuffer / GLX 1.3 */ + if (screen->has_WGL_ARB_pbuffer) + { + c->base.maxPbufferWidth = ATTR_VALUE(WGL_MAX_PBUFFER_WIDTH_ARB, -1); + c->base.maxPbufferHeight = ATTR_VALUE(WGL_MAX_PBUFFER_HEIGHT_ARB, -1); + c->base.maxPbufferPixels = ATTR_VALUE(WGL_MAX_PBUFFER_PIXELS_ARB, -1); + } + else + { + c->base.maxPbufferWidth = -1; + c->base.maxPbufferHeight = -1; + c->base.maxPbufferPixels = -1; + } + c->base.optimalPbufferWidth = 0; // there is no optimal value + c->base.optimalPbufferHeight = 0; + + /* SGIX_visual_select_group */ + // arrange for visuals with the best acceleration to be preferred in selection + switch (ATTR_VALUE(WGL_ACCELERATION_ARB, 0)) + { + case WGL_FULL_ACCELERATION_ARB: + c->base.visualSelectGroup = 2; + break; + + case WGL_GENERIC_ACCELERATION_ARB: + c->base.visualSelectGroup = 1; + break; + + default: + case WGL_NO_ACCELERATION_ARB: + c->base.visualSelectGroup = 0; + break; + } + + /* OML_swap_method */ + switch (ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)) + { + case WGL_SWAP_EXCHANGE_ARB: + c->base.swapMethod = GLX_SWAP_EXCHANGE_OML; + break; + + case WGL_SWAP_COPY_ARB: + c->base.swapMethod = GLX_SWAP_COPY_OML; + break; + + default: + ErrorF("wglGetPixelFormatAttribivARB returned unknown value 0x%x for WGL_SWAP_METHOD_ARB\n", ATTR_VALUE(WGL_SWAP_METHOD_ARB, 0)); + + case WGL_SWAP_UNDEFINED_ARB: + c->base.swapMethod = GLX_SWAP_UNDEFINED_OML; + } + + /* EXT_import_context */ + c->base.screen = screen->base.pScreen->myNum; + + /* EXT_texture_from_pixmap */ + /* + Mesa's DRI configs always have bindToTextureRgb/Rgba TRUE (see driCreateConfigs(), so setting + bindToTextureRgb/bindToTextureRgba to FALSE means that swrast can't find any fbConfigs to use, + so setting these to 0, even if we know bindToTexture isn't available, isn't a good idea... + */ + if (screen->has_WGL_ARB_render_texture) + { + c->base.bindToTextureRgb = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGB_ARB, -1); + c->base.bindToTextureRgba = ATTR_VALUE(WGL_BIND_TO_TEXTURE_RGBA_ARB, -1); + } + else + { + c->base.bindToTextureRgb = -1; + c->base.bindToTextureRgba = -1; + } + c->base.bindToMipmapTexture = -1; + c->base.bindToTextureTargets = GLX_TEXTURE_1D_BIT_EXT | GLX_TEXTURE_2D_BIT_EXT | GLX_TEXTURE_RECTANGLE_BIT_EXT; + c->base.yInverted = -1; + + n++; + + // update previous config to point to this config + if (prev) + prev->base.next = &(c->base); + + prev = c; + } + + screen->base.numFBConfigs = n; + screen->base.fbconfigs = &(result->base); +} -- cgit v1.2.3