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Copyright (c) 2008, 2009 Apple Inc.
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Permission is hereby granted, free of charge, to any person
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obtaining a copy of this software and associated documentation files
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(the "Software"), to deal in the Software without restriction,
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including without limitation the rights to use, copy, modify, merge,
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publish, distribute, sublicense, and/or sell copies of the Software,
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and to permit persons to whom the Software is furnished to do so,
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subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
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HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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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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Except as contained in this notice, the name(s) of the above
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copyright holders shall not be used in advertising or otherwise to
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promote the sale, use or other dealings in this Software without
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prior written authorization.
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#include <util/debug.h>
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/* <rdar://problem/6953344> */
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#define glTexImage1D glTexImage1D_OSX
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#define glTexImage2D glTexImage2D_OSX
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#define glTexImage3D glTexImage3D_OSX
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#include <OpenGL/OpenGL.h>
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#include <OpenGL/CGLContext.h>
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#include <OpenGL/CGLRenderers.h>
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#include <OpenGL/CGLTypes.h>
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#ifndef kCGLPFAOpenGLProfile
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#define kCGLPFAOpenGLProfile 99
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#ifndef kCGLOGLPVersion_3_2_Core
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#define kCGLOGLPVersion_3_2_Core 0x3200
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#include "apple_cgl.h"
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#include "apple_visual.h"
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#include "apple_glx.h"
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#include "glxconfig.h"
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static char __crashreporter_info_buff__[4096] = { 0 };
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static const char *__crashreporter_info__ __attribute__((__used__)) =
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&__crashreporter_info_buff__[0];
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#if MAC_OS_X_VERSION_MIN_REQUIRED >= 1050
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// This is actually a toolchain requirement, but I'm not sure the correct check,
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// but it should be fine to just only include it for Leopard and later. This line
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// just tells the linker to never strip this symbol (such as for space optimization)
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__asm__ (".desc ___crashreporter_info__, 0x10");
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apple_visual_create_pfobj(CGLPixelFormatObj * pfobj, const struct glx_config * mode,
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bool * double_buffered, bool * uses_stereo,
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CGLPixelFormatAttribute attr[MAX_ATTR];
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bool use_core_profile = env_var_as_boolean("LIBGL_PROFILE_CORE", false);
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("offscreen rendering enabled. Using kCGLPFAOffScreen\n");
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attr[numattr++] = kCGLPFAOffScreen;
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else if (env_var_as_boolean("LIBGL_ALWAYS_SOFTWARE", false)) {
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("Software rendering requested. Using kCGLRendererGenericFloatID.\n");
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attr[numattr++] = kCGLPFARendererID;
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attr[numattr++] = kCGLRendererGenericFloatID;
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else if (env_var_as_boolean("LIBGL_ALLOW_SOFTWARE", false)) {
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("Software rendering is not being excluded. Not using kCGLPFAAccelerated.\n");
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attr[numattr++] = kCGLPFAAccelerated;
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* The program chose a config based on the fbconfigs or visuals.
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* Those are based on the attributes from CGL, so we probably
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* do want the closest match for the color, depth, and accum.
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attr[numattr++] = kCGLPFAClosestPolicy;
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if (mode->stereoMode) {
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attr[numattr++] = kCGLPFAStereo;
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*uses_stereo = false;
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if (!offscreen && mode->doubleBufferMode) {
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attr[numattr++] = kCGLPFADoubleBuffer;
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*double_buffered = true;
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*double_buffered = false;
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attr[numattr++] = kCGLPFAColorSize;
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attr[numattr++] = mode->redBits + mode->greenBits + mode->blueBits;
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attr[numattr++] = kCGLPFAAlphaSize;
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attr[numattr++] = mode->alphaBits;
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if ((mode->accumRedBits + mode->accumGreenBits + mode->accumBlueBits) > 0) {
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attr[numattr++] = kCGLPFAAccumSize;
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attr[numattr++] = mode->accumRedBits + mode->accumGreenBits +
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mode->accumBlueBits + mode->accumAlphaBits;
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if (mode->depthBits > 0) {
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attr[numattr++] = kCGLPFADepthSize;
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attr[numattr++] = mode->depthBits;
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if (mode->stencilBits > 0) {
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attr[numattr++] = kCGLPFAStencilSize;
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attr[numattr++] = mode->stencilBits;
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if (mode->sampleBuffers > 0) {
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attr[numattr++] = kCGLPFAMultisample;
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attr[numattr++] = kCGLPFASampleBuffers;
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attr[numattr++] = mode->sampleBuffers;
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attr[numattr++] = kCGLPFASamples;
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attr[numattr++] = mode->samples;
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/* Debugging support for Core profiles to support newer versions of OpenGL */
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if (use_core_profile) {
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attr[numattr++] = kCGLPFAOpenGLProfile;
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attr[numattr++] = kCGLOGLPVersion_3_2_Core;
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assert(numattr < MAX_ATTR);
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error = apple_cgl.choose_pixel_format(attr, pfobj, &vsref);
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if ((error == kCGLBadAttribute || vsref == 0) && use_core_profile) {
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("Trying again without CoreProfile: error=%s, vsref=%d\n", apple_cgl.error_string(error), vsref);
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apple_cgl.destroy_pixel_format(*pfobj);
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error = apple_cgl.choose_pixel_format(attr, pfobj, &vsref);
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snprintf(__crashreporter_info_buff__, sizeof(__crashreporter_info_buff__),
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"CGLChoosePixelFormat error: %s\n", apple_cgl.error_string(error));
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fprintf(stderr, "%s", __crashreporter_info_buff__);
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snprintf(__crashreporter_info_buff__, sizeof(__crashreporter_info_buff__),
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"No matching pixelformats found, perhaps try setting LIBGL_ALLOW_SOFTWARE=true\n");
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fprintf(stderr, "%s", __crashreporter_info_buff__);