diff options
Diffstat (limited to 'xorg-server/hw/xwin/glx')
| -rw-r--r-- | xorg-server/hw/xwin/glx/indirect.c | 4632 |
1 files changed, 2316 insertions, 2316 deletions
diff --git a/xorg-server/hw/xwin/glx/indirect.c b/xorg-server/hw/xwin/glx/indirect.c index c12cd1fbf..7bcfcdc21 100644 --- a/xorg-server/hw/xwin/glx/indirect.c +++ b/xorg-server/hw/xwin/glx/indirect.c @@ -1,2316 +1,2316 @@ -/* - * 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 <xwin-config.h> -#endif - -#include "glwindows.h" -#include <glx/glxserver.h> -#include <glx/glxutil.h> -#include <glx/extension_string.h> -#include <GL/glxtokens.h> - -#include <winpriv.h> -#include <wgl_ext_api.h> - -#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 */ -}; - -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; -}; - -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 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) -{ - 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; -} - -/* - Report the extensions split and formatted to avoid overflowing a line - */ -static void -glxLogExtensions(const char *prefix, const char *extensions) -{ - int length = 0; - char *strl; - char *str = xalloc(strlen(extensions) + 1); - - if (str == NULL) - { - ErrorF("glxLogExtensions: xalloc error\n"); - return; - } - - str[strlen(extensions)] = '\0'; - strncpy (str, extensions, strlen(extensions)); - - strl = strtok(str, " "); - ErrorF("%s%s", prefix, strl); - length = strlen(prefix) + strlen(strl); - - while (1) - { - strl = strtok(NULL, " "); - if (strl == NULL) break; - - if (length + strlen(strl) + 1 > 120) - { - ErrorF("\n"); - ErrorF("%s",prefix); - length = strlen(prefix); - } - else - { - ErrorF(" "); - length++; - } - - ErrorF("%s", strl); - length = length + strlen(strl); - } - - ErrorF("\n"); - - xfree(str); -} - -/* 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; - - /* Dump out some useful information about the native renderer */ - - // create window class -#define WIN_GL_TEST_WINDOW_CLASS "XWinGLTest" - { - static wATOM glTestWndClass = 0; - if (glTestWndClass == 0) - { - WNDCLASSEX wc; - wc.cbSize = sizeof(WNDCLASSEX); - wc.style = CS_HREDRAW | CS_VREDRAW; - wc.lpfnWndProc = DefWindowProc; - wc.cbClsExtra = 0; - wc.cbWndExtra = 0; - wc.hInstance = GetModuleHandle(NULL); - wc.hIcon = 0; - wc.hCursor = 0; - wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH); - wc.lpszMenuName = NULL; - wc.lpszClassName = WIN_GL_TEST_WINDOW_CLASS; - wc.hIconSm = 0; - RegisterClassEx (&wc); - } - } - - // create an invisible window for a scratch DC - hwnd = CreateWindowExA(0, - WIN_GL_TEST_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); - glxLogExtensions("GL_EXTENSIONS: ", gl_extensions); - wgl_extensions = wglGetExtensionsStringARBWrapper(hdc); - if (!wgl_extensions) wgl_extensions = ""; - glxLogExtensions("WGL_EXTENSIONS: ", 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.GLXmajor = 1; - screen->base.GLXminor = 4; - } - else - { - screen->base.GLXversion = xstrdup("1.3"); - screen->base.GLXmajor = 1; - 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); - - 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; - - 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 -glxWinUnrealizeWindow(WindowPtr pWin) -{ - Bool result; - ScreenPtr pScreen = pWin->drawable.pScreen; - glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen); - - GLWIN_DEBUG_MSG("glxWinUnrealizeWindow"); - - pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow; - result = pScreen->UnrealizeWindow(pWin); - pScreen->UnrealizeWindow = glxWinUnrealizeWindow; - - return result; -} - -/* ---------------------------------------------------------------------- */ -/* - * Drawable functions - */ - -static GLboolean -glxWinDrawableSwapBuffers(ClientPtr client, __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(NULL, 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: - { - WindowPtr pWin; - - pWin = (WindowPtr) draw->base.pDraw; - if (pWin == NULL) - { - GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin); - return NULL; - } - - *hwnd = winGetWindowInfo(pWin); - - if (*hwnd == NULL) - { - ErrorF("No HWND error: %s\n", glxWinErrorMessage()); - return NULL; - } - - *hdc = GetDC(*hwnd); - - if (*hdc == NULL) - ErrorF("GetDC error: %s\n", glxWinErrorMessage()); - - /* Check if the hwnd has changed... */ - if (*hwnd != gc->hwnd) - { - if (glxWinDebugSettings.enableTrace) - GLWIN_DEBUG_HWND(*hwnd); - - GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, *hwnd); - gc->hwnd = *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; - GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw); - - switch (draw->base.type) - { - case GLX_DRAWABLE_WINDOW: - { - 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); - - if (winGetWindowInfo(pWin) == 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; - - memset (&bmpHeader, 0, sizeof(BITMAPINFOHEADER)); - bmpHeader.biSize = sizeof(BITMAPINFOHEADER); - 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); - 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 = NULL; - 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("wglMakeContextCurrentARBWrapper 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(); - - /* - An error seems to be reported if we try to make no context current - if there is already no current context, so avoid doing that... - */ - if (__glXLastContext != NULL) - { - ret = wglMakeCurrent(NULL, NULL); /* We don't need a DC when setting no current context */ - if (!ret) - ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage()); - } - - 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) - { - /* It's bad style to delete the context while it's still current */ - if (wglGetCurrentContext() == gc->ctx) - { - wglMakeCurrent(NULL, NULL); - } - - { - BOOL ret = wglDeleteContext(gc->ctx); - if (!ret) - ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage()); - } - - gc->ctx = NULL; - } - - 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; - - if (!getenv("GLWIN_ENABLE_COLORINDEX_FBCONFIGS")) - { - GLWIN_DEBUG_MSG("pixelFormat %d is PFD_TYPE_COLORINDEX, skipping", i+1); - continue; - } - } - 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)); - - if (pfd.iPixelType == PFD_TYPE_COLORINDEX) - { - c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; - } - else - { - 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 values[num_attrs]; - - 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; - - if (!getenv("GLWIN_ENABLE_COLORINDEX_FBCONFIGS")) - { - GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_COLORINDEX_ARB, skipping", i+1); - continue; - } - - 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)); - - /* - Assume OpenGL RGBA rendering is available on all visuals - (it is specified to render to red component in single-channel visuals, - if supported, but there doesn't seem to be any mechanism to check if it - is supported) - - Color index rendering is only supported on single-channel visuals - */ - if (c->base.visualType == GLX_STATIC_COLOR) - { - c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT; - } - else - { - 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 */ - 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 <xwin-config.h>
+#endif
+
+#include "glwindows.h"
+#include <glx/glxserver.h>
+#include <glx/glxutil.h>
+#include <glx/extension_string.h>
+#include <GL/glxtokens.h>
+
+#include <winpriv.h>
+#include <wgl_ext_api.h>
+
+#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 */
+};
+
+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;
+};
+
+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 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)
+{
+ GlxPushProvider(&__glXWGLProvider);
+}
+
+/* ---------------------------------------------------------------------- */
+/*
+ * Screen functions
+ */
+
+static void
+glxWinScreenDestroy(__GLXscreen *screen)
+{
+ GLWIN_DEBUG_MSG("glxWinScreenDestroy(%p)", screen);
+ __glXScreenDestroy(screen);
+ free(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;
+}
+
+/*
+ Report the extensions split and formatted to avoid overflowing a line
+ */
+static void
+glxLogExtensions(const char *prefix, const char *extensions)
+{
+ int length = 0;
+ char *strl;
+ char *str = malloc(strlen(extensions) + 1);
+
+ if (str == NULL)
+ {
+ ErrorF("glxLogExtensions: xalloc error\n");
+ return;
+ }
+
+ str[strlen(extensions)] = '\0';
+ strncpy (str, extensions, strlen(extensions));
+
+ strl = strtok(str, " ");
+ ErrorF("%s%s", prefix, strl);
+ length = strlen(prefix) + strlen(strl);
+
+ while (1)
+ {
+ strl = strtok(NULL, " ");
+ if (strl == NULL) break;
+
+ if (length + strlen(strl) + 1 > 120)
+ {
+ ErrorF("\n");
+ ErrorF("%s",prefix);
+ length = strlen(prefix);
+ }
+ else
+ {
+ ErrorF(" ");
+ length++;
+ }
+
+ ErrorF("%s", strl);
+ length = length + strlen(strl);
+ }
+
+ ErrorF("\n");
+
+ free(str);
+}
+
+/* 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 = calloc(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;
+
+ /* Dump out some useful information about the native renderer */
+
+ // create window class
+#define WIN_GL_TEST_WINDOW_CLASS "XWinGLTest"
+ {
+ static wATOM glTestWndClass = 0;
+ if (glTestWndClass == 0)
+ {
+ WNDCLASSEX wc;
+ wc.cbSize = sizeof(WNDCLASSEX);
+ wc.style = CS_HREDRAW | CS_VREDRAW;
+ wc.lpfnWndProc = DefWindowProc;
+ wc.cbClsExtra = 0;
+ wc.cbWndExtra = 0;
+ wc.hInstance = GetModuleHandle(NULL);
+ wc.hIcon = 0;
+ wc.hCursor = 0;
+ wc.hbrBackground = (HBRUSH)GetStockObject(WHITE_BRUSH);
+ wc.lpszMenuName = NULL;
+ wc.lpszClassName = WIN_GL_TEST_WINDOW_CLASS;
+ wc.hIconSm = 0;
+ RegisterClassEx (&wc);
+ }
+ }
+
+ // create an invisible window for a scratch DC
+ hwnd = CreateWindowExA(0,
+ WIN_GL_TEST_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);
+ glxLogExtensions("GL_EXTENSIONS: ", gl_extensions);
+ wgl_extensions = wglGetExtensionsStringARBWrapper(hdc);
+ if (!wgl_extensions) wgl_extensions = "";
+ glxLogExtensions("WGL_EXTENSIONS: ", 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)
+ {
+ free(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)
+ {
+ free(screen->base.GLXversion);
+
+ if (screen->has_WGL_ARB_multisample)
+ {
+ screen->base.GLXversion = xstrdup("1.4");
+ screen->base.GLXmajor = 1;
+ screen->base.GLXminor = 4;
+ }
+ else
+ {
+ screen->base.GLXversion = xstrdup("1.3");
+ screen->base.GLXmajor = 1;
+ 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);
+
+ 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;
+
+ 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
+glxWinUnrealizeWindow(WindowPtr pWin)
+{
+ Bool result;
+ ScreenPtr pScreen = pWin->drawable.pScreen;
+ glxWinScreen *screenPriv = (glxWinScreen *)glxGetScreen(pScreen);
+
+ GLWIN_DEBUG_MSG("glxWinUnrealizeWindow");
+
+ pScreen->UnrealizeWindow = screenPriv->UnrealizeWindow;
+ result = pScreen->UnrealizeWindow(pWin);
+ pScreen->UnrealizeWindow = glxWinUnrealizeWindow;
+
+ return result;
+}
+
+/* ---------------------------------------------------------------------- */
+/*
+ * Drawable functions
+ */
+
+static GLboolean
+glxWinDrawableSwapBuffers(ClientPtr client, __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(NULL, 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");
+ free(glxPriv);
+}
+
+static __GLXdrawable *
+glxWinCreateDrawable(__GLXscreen *screen,
+ DrawablePtr pDraw,
+ int type,
+ XID drawId,
+ __GLXconfig *conf)
+{
+ __GLXWinDrawable *glxPriv;
+
+ glxPriv = malloc(sizeof *glxPriv);
+
+ if (glxPriv == NULL)
+ return NULL;
+
+ memset(glxPriv, 0, sizeof *glxPriv);
+
+ if(!__glXDrawableInit(&glxPriv->base, screen, pDraw, type, drawId, conf)) {
+ free(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:
+ {
+ WindowPtr pWin;
+
+ pWin = (WindowPtr) draw->base.pDraw;
+ if (pWin == NULL)
+ {
+ GLWIN_TRACE_MSG("for drawable %p, no WindowPtr", pWin);
+ return NULL;
+ }
+
+ *hwnd = winGetWindowInfo(pWin);
+
+ if (*hwnd == NULL)
+ {
+ ErrorF("No HWND error: %s\n", glxWinErrorMessage());
+ return NULL;
+ }
+
+ *hdc = GetDC(*hwnd);
+
+ if (*hdc == NULL)
+ ErrorF("GetDC error: %s\n", glxWinErrorMessage());
+
+ /* Check if the hwnd has changed... */
+ if (*hwnd != gc->hwnd)
+ {
+ if (glxWinDebugSettings.enableTrace)
+ GLWIN_DEBUG_HWND(*hwnd);
+
+ GLWIN_TRACE_MSG("for context %p (native ctx %p), hWnd changed from %p to %p", gc, gc->ctx, gc->hwnd, *hwnd);
+ gc->hwnd = *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;
+ GLWIN_DEBUG_MSG("glxWinDeferredCreateContext: attach context %p to drawable %p", gc, draw);
+
+ switch (draw->base.type)
+ {
+ case GLX_DRAWABLE_WINDOW:
+ {
+ 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);
+
+ if (winGetWindowInfo(pWin) == 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;
+
+ memset (&bmpHeader, 0, sizeof(BITMAPINFOHEADER));
+ bmpHeader.biSize = sizeof(BITMAPINFOHEADER);
+ 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);
+ 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 = NULL;
+ 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("wglMakeContextCurrentARBWrapper 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();
+
+ /*
+ An error seems to be reported if we try to make no context current
+ if there is already no current context, so avoid doing that...
+ */
+ if (__glXLastContext != NULL)
+ {
+ ret = wglMakeCurrent(NULL, NULL); /* We don't need a DC when setting no current context */
+ if (!ret)
+ ErrorF("glxWinContextLoseCurrent error: %s\n", glxWinErrorMessage());
+ }
+
+ 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)
+ {
+ /* It's bad style to delete the context while it's still current */
+ if (wglGetCurrentContext() == gc->ctx)
+ {
+ wglMakeCurrent(NULL, NULL);
+ }
+
+ {
+ BOOL ret = wglDeleteContext(gc->ctx);
+ if (!ret)
+ ErrorF("wglDeleteContext error: %s\n", glxWinErrorMessage());
+ }
+
+ gc->ctx = NULL;
+ }
+
+ free(gc);
+ }
+}
+
+static __GLXcontext *
+glxWinCreateContext(__GLXscreen *screen,
+ __GLXconfig *modes,
+ __GLXcontext *baseShareContext)
+{
+ __GLXWinContext *context;
+ __GLXWinContext *shareContext = (__GLXWinContext *)baseShareContext;
+
+ static __GLXtextureFromPixmap glxWinTextureFromPixmap =
+ {
+ glxWinBindTexImage,
+ glxWinReleaseTexImage
+ };
+
+ context = (__GLXWinContext *)calloc(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 = malloc(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;
+
+ if (!getenv("GLWIN_ENABLE_COLORINDEX_FBCONFIGS"))
+ {
+ GLWIN_DEBUG_MSG("pixelFormat %d is PFD_TYPE_COLORINDEX, skipping", i+1);
+ continue;
+ }
+ }
+ 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));
+
+ if (pfd.iPixelType == PFD_TYPE_COLORINDEX)
+ {
+ c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT;
+ }
+ else
+ {
+ 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 = malloc(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 values[num_attrs];
+
+ 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;
+
+ if (!getenv("GLWIN_ENABLE_COLORINDEX_FBCONFIGS"))
+ {
+ GLWIN_DEBUG_MSG("pixelFormat %d is WGL_TYPE_COLORINDEX_ARB, skipping", i+1);
+ continue;
+ }
+
+ 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));
+
+ /*
+ Assume OpenGL RGBA rendering is available on all visuals
+ (it is specified to render to red component in single-channel visuals,
+ if supported, but there doesn't seem to be any mechanism to check if it
+ is supported)
+
+ Color index rendering is only supported on single-channel visuals
+ */
+ if (c->base.visualType == GLX_STATIC_COLOR)
+ {
+ c->base.renderType = GLX_RGBA_BIT | GLX_COLOR_INDEX_BIT;
+ }
+ else
+ {
+ 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 */
+ 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);
+}
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