Handle failure to get any useful pixel formats for GLX fbconfigs more gracefully: If we didn't get any useful pixel formats from wglGetPixelFormatAttribivARB(), fall back to using DescribePixelFormat(). If that doesn't give us any useful pixel formats, fallback to software rendering. This works around a problem with Intel 845G drivers, where wglGetPixelFormatAttribivARB() doesn't seem to work as we expect it to... Reviewed-by: Colin Harrison <colin.harrison@virgin.net> Signed-off-by: Jon TURNEY <jon.turney@dronecode.org.uk>
2350 lines
74 KiB
C
2350 lines
74 KiB
C
/*
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* File: indirect.c
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* Purpose: A GLX implementation that uses Windows OpenGL library
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*
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* Authors: Alexander Gottwald
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* Jon TURNEY
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*
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* Copyright (c) Jon TURNEY 2009
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* Copyright (c) Alexander Gottwald 2004
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*
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* Portions of this file are copied from GL/apple/indirect.c,
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* which contains the following copyright:
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*
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* Copyright (c) 2007, 2008, 2009 Apple Inc.
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* Copyright (c) 2004 Torrey T. Lyons. All Rights Reserved.
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* Copyright (c) 2002 Greg Parker. All Rights Reserved.
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*
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* Portions of this file are copied from Mesa's xf86glx.c,
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* which contains the following copyright:
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*
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* Copyright 1998-1999 Precision Insight, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
|
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE ABOVE LISTED COPYRIGHT HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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/*
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TODO:
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- hook up remaining unimplemented extensions
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- research what guarantees glXWaitX, glXWaitGL are supposed to offer, and implement then
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using GdiFlush and/or glFinish
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- pbuffer clobbering: we don't get async notification, but can we arrange to emit the
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event when we notice it's been clobbered? at the very least, check if it's been clobbered
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before using it?
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- are the __GLXConfig * we get handed back ones we are made (so we can extend the structure
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with privates?) Or are they created inside the GLX core as well?
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*/
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/*
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MSDN clarifications:
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It says SetPixelFormat()'s PIXELFORMATDESCRIPTOR pointer argument has no effect
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except on metafiles, this seems to mean that as it's ok to supply NULL if the DC
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is not for a metafile
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wglMakeCurrent ignores the hdc if hglrc is NULL, so wglMakeCurrent(NULL, NULL)
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is used to make no context current
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*/
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#ifdef HAVE_XWIN_CONFIG_H
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#include <xwin-config.h>
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#endif
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#include "glwindows.h"
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#include <glx/glxserver.h>
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#include <glx/glxutil.h>
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#include <glx/extension_string.h>
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#include <GL/glxtokens.h>
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#include <winpriv.h>
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#include <wgl_ext_api.h>
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#define NUM_ELEMENTS(x) (sizeof(x)/ sizeof(x[1]))
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/* Not yet in w32api */
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#ifndef PFD_SUPPORT_DIRECTDRAW
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#define PFD_SUPPORT_DIRECTDRAW 0x00002000
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#endif
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#ifndef PFD_DIRECT3D_ACCELERATED
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#define PFD_DIRECT3D_ACCELERATED 0x00004000
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#endif
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#ifndef PFD_SUPPORT_COMPOSITION
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#define PFD_SUPPORT_COMPOSITION 0x00008000
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#endif
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/* ---------------------------------------------------------------------- */
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/*
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* structure definitions
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*/
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typedef struct __GLXWinContext __GLXWinContext;
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typedef struct __GLXWinDrawable __GLXWinDrawable;
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typedef struct __GLXWinScreen glxWinScreen;
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typedef struct __GLXWinConfig GLXWinConfig;
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struct __GLXWinContext {
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__GLXcontext base;
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HGLRC ctx; /* Windows GL Context */
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__GLXWinContext *shareContext; /* Context with which we will share display lists and textures */
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HWND hwnd; /* For detecting when HWND has changed */
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};
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struct __GLXWinDrawable
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{
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__GLXdrawable base;
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__GLXWinContext *drawContext;
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__GLXWinContext *readContext;
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/* If this drawable is GLX_DRAWABLE_PBUFFER */
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HPBUFFERARB hPbuffer;
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/* If this drawable is GLX_DRAWABLE_PIXMAP */
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HDC dibDC;
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HBITMAP hDIB;
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HBITMAP hOldDIB; /* original DIB for DC */
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void *pOldBits; /* original pBits for this drawable's pixmap */
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};
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struct __GLXWinScreen
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{
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__GLXscreen base;
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/* Supported GLX extensions */
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unsigned char glx_enable_bits[__GLX_EXT_BYTES];
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Bool has_WGL_ARB_multisample;
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Bool has_WGL_ARB_pixel_format;
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Bool has_WGL_ARB_pbuffer;
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Bool has_WGL_ARB_render_texture;
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|
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/* wrapped screen functions */
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RealizeWindowProcPtr RealizeWindow;
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UnrealizeWindowProcPtr UnrealizeWindow;
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CopyWindowProcPtr CopyWindow;
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};
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struct __GLXWinConfig
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{
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__GLXconfig base;
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int pixelFormatIndex;
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};
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/* ---------------------------------------------------------------------- */
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/*
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* Various debug helpers
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*/
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#define GLWIN_DEBUG_HWND(hwnd) \
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if (glxWinDebugSettings.dumpHWND) { \
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char buffer[1024]; \
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if (GetWindowText(hwnd, buffer, sizeof(buffer))==0) *buffer=0; \
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GLWIN_DEBUG_MSG("Got HWND %p for window '%s'", hwnd, buffer); \
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}
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glxWinDebugSettingsRec glxWinDebugSettings = { 0, 0, 0, 0, 0, 0};
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static void glxWinInitDebugSettings(void)
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{
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char *envptr;
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envptr = getenv("GLWIN_ENABLE_DEBUG");
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if (envptr != NULL)
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glxWinDebugSettings.enableDebug = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_ENABLE_TRACE");
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if (envptr != NULL)
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glxWinDebugSettings.enableTrace = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_DUMP_PFD");
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if (envptr != NULL)
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glxWinDebugSettings.dumpPFD = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_DUMP_HWND");
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if (envptr != NULL)
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glxWinDebugSettings.dumpHWND = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_DUMP_DC");
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if (envptr != NULL)
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glxWinDebugSettings.dumpDC = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_ENABLE_GLCALL_TRACE");
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if (envptr != NULL)
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glxWinDebugSettings.enableGLcallTrace = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_ENABLE_WGLCALL_TRACE");
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if (envptr != NULL)
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glxWinDebugSettings.enableWGLcallTrace = (atoi(envptr) == 1);
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envptr = getenv("GLWIN_DEBUG_ALL");
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if (envptr != NULL)
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{
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glxWinDebugSettings.enableDebug = 1;
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glxWinDebugSettings.enableTrace = 1;
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glxWinDebugSettings.dumpPFD = 1;
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glxWinDebugSettings.dumpHWND = 1;
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glxWinDebugSettings.dumpDC = 1;
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glxWinDebugSettings.enableGLcallTrace = 1;
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glxWinDebugSettings.enableWGLcallTrace = 1;
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}
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}
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static
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const char *glxWinErrorMessage(void)
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{
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static char errorbuffer[1024];
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unsigned int last_error = GetLastError();
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|
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if (!FormatMessage(
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FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS | FORMAT_MESSAGE_MAX_WIDTH_MASK,
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NULL,
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last_error,
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0,
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(LPTSTR) &errorbuffer,
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sizeof(errorbuffer),
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NULL ))
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{
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snprintf(errorbuffer, sizeof(errorbuffer), "Unknown error");
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}
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if ((errorbuffer[strlen(errorbuffer)-1] == '\n') || (errorbuffer[strlen(errorbuffer)-1] == '\r'))
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errorbuffer[strlen(errorbuffer)-1] = 0;
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sprintf(errorbuffer + strlen(errorbuffer), " (%08x)", last_error);
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return errorbuffer;
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}
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static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd);
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|
#define DUMP_PFD_FLAG(flag) \
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if (pfd->dwFlags & flag) { \
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ErrorF("%s%s", pipesym, #flag); \
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pipesym = " | "; \
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}
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static void pfdOut(const PIXELFORMATDESCRIPTOR *pfd)
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{
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const char *pipesym = ""; /* will be set after first flag dump */
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ErrorF("PIXELFORMATDESCRIPTOR:\n");
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ErrorF("nSize = %u\n", pfd->nSize);
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ErrorF("nVersion = %u\n", pfd->nVersion);
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ErrorF("dwFlags = %lu = {", pfd->dwFlags);
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DUMP_PFD_FLAG(PFD_DOUBLEBUFFER);
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DUMP_PFD_FLAG(PFD_STEREO);
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DUMP_PFD_FLAG(PFD_DRAW_TO_WINDOW);
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DUMP_PFD_FLAG(PFD_DRAW_TO_BITMAP);
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DUMP_PFD_FLAG(PFD_SUPPORT_GDI);
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DUMP_PFD_FLAG(PFD_SUPPORT_OPENGL);
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DUMP_PFD_FLAG(PFD_GENERIC_FORMAT);
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DUMP_PFD_FLAG(PFD_NEED_PALETTE);
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DUMP_PFD_FLAG(PFD_NEED_SYSTEM_PALETTE);
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DUMP_PFD_FLAG(PFD_SWAP_EXCHANGE);
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DUMP_PFD_FLAG(PFD_SWAP_COPY);
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DUMP_PFD_FLAG(PFD_SWAP_LAYER_BUFFERS);
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DUMP_PFD_FLAG(PFD_GENERIC_ACCELERATED);
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DUMP_PFD_FLAG(PFD_SUPPORT_DIRECTDRAW);
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DUMP_PFD_FLAG(PFD_DIRECT3D_ACCELERATED);
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DUMP_PFD_FLAG(PFD_SUPPORT_COMPOSITION);
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DUMP_PFD_FLAG(PFD_DEPTH_DONTCARE);
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DUMP_PFD_FLAG(PFD_DOUBLEBUFFER_DONTCARE);
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DUMP_PFD_FLAG(PFD_STEREO_DONTCARE);
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ErrorF("}\n");
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|
ErrorF("iPixelType = %hu = %s\n", pfd->iPixelType,
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(pfd->iPixelType == PFD_TYPE_RGBA ? "PFD_TYPE_RGBA" : "PFD_TYPE_COLORINDEX"));
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ErrorF("cColorBits = %hhu\n", pfd->cColorBits);
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ErrorF("cRedBits = %hhu\n", pfd->cRedBits);
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ErrorF("cRedShift = %hhu\n", pfd->cRedShift);
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ErrorF("cGreenBits = %hhu\n", pfd->cGreenBits);
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ErrorF("cGreenShift = %hhu\n", pfd->cGreenShift);
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ErrorF("cBlueBits = %hhu\n", pfd->cBlueBits);
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ErrorF("cBlueShift = %hhu\n", pfd->cBlueShift);
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ErrorF("cAlphaBits = %hhu\n", pfd->cAlphaBits);
|
|
ErrorF("cAlphaShift = %hhu\n", pfd->cAlphaShift);
|
|
ErrorF("cAccumBits = %hhu\n", pfd->cAccumBits);
|
|
ErrorF("cAccumRedBits = %hhu\n", pfd->cAccumRedBits);
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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 *
|
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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 *
|
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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 %3x %3x "
|
|
"%-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(ClientPtr client,
|
|
__GLXscreen *screen,
|
|
DrawablePtr pDraw,
|
|
XID drawId,
|
|
int type,
|
|
XID glxDrawId,
|
|
__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 = strdup(extensions);
|
|
|
|
if (str == NULL)
|
|
{
|
|
ErrorF("glxLogExtensions: xalloc error\n");
|
|
return;
|
|
}
|
|
|
|
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.pScreen = pScreen;
|
|
|
|
// Creating the fbConfigs initializes screen->base.fbconfigs and screen->base.numFBConfigs
|
|
if (strstr(wgl_extensions, "WGL_ARB_pixel_format"))
|
|
{
|
|
glxWinCreateConfigsExt(hdc, screen);
|
|
|
|
/*
|
|
Some graphics drivers appear to advertise WGL_ARB_pixel_format,
|
|
but it doesn't work usefully, so we have to be prepared for it
|
|
to fail and fall back to using DescribePixelFormat()
|
|
*/
|
|
if (screen->base.numFBConfigs > 0)
|
|
{
|
|
screen->has_WGL_ARB_pixel_format = TRUE;
|
|
}
|
|
}
|
|
|
|
if (screen->base.numFBConfigs <= 0)
|
|
{
|
|
glxWinCreateConfigs(hdc, screen);
|
|
screen->has_WGL_ARB_pixel_format = FALSE;
|
|
}
|
|
|
|
/*
|
|
If we still didn't get any fbConfigs, we can't provide GLX for this screen
|
|
*/
|
|
if (screen->base.numFBConfigs <= 0)
|
|
{
|
|
free(screen);
|
|
LogMessage(X_ERROR,"AIGLX: No fbConfigs could be made from native OpenGL pixel formats\n");
|
|
return NULL;
|
|
}
|
|
|
|
/* 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 = strdup(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)
|
|
{
|
|
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 = strdup("1.4");
|
|
screen->base.GLXmajor = 1;
|
|
screen->base.GLXminor = 4;
|
|
}
|
|
else
|
|
{
|
|
screen->base.GLXversion = strdup("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..)
|
|
__glXLastContext->hasUnflushedCommands = FALSE;
|
|
__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(ClientPtr client,
|
|
__GLXscreen *screen,
|
|
DrawablePtr pDraw,
|
|
XID drawId,
|
|
int type,
|
|
XID glxDrawId,
|
|
__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, glxDrawId, 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 Bool
|
|
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 FALSE;
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
/*
|
|
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 FALSE;
|
|
}
|
|
|
|
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 FALSE;
|
|
}
|
|
|
|
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 FALSE;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
int pixelFormat = fbConfigToPixelFormatIndex(hdc, gc->base.config, drawableTypeOverride, winScreen);
|
|
if (pixelFormat == 0)
|
|
{
|
|
ErrorF("wglChoosePixelFormat error: %s\n", glxWinErrorMessage());
|
|
return FALSE;
|
|
}
|
|
|
|
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 FALSE;
|
|
}
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
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... */
|
|
if (!glxWinSetPixelFormat(gc, *hdc, 0, GLX_WINDOW_BIT))
|
|
{
|
|
ErrorF("glxWinSetPixelFormat error: %s\n", glxWinErrorMessage());
|
|
ReleaseDC(*hwnd, *hdc);
|
|
*hdc = NULL;
|
|
return NULL;
|
|
}
|
|
}
|
|
}
|
|
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 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.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);
|
|
}
|