apple_visual.c revision 4c9bab78a118953baf307e31cd53e731299f0151
1ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston/* 2ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston Copyright (c) 2008, 2009 Apple Inc. 3ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 4ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston Permission is hereby granted, free of charge, to any person 5ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston obtaining a copy of this software and associated documentation files 6ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston (the "Software"), to deal in the Software without restriction, 7ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston including without limitation the rights to use, copy, modify, merge, 8ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston publish, distribute, sublicense, and/or sell copies of the Software, 9ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston and to permit persons to whom the Software is furnished to do so, 10ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston subject to the following conditions: 11ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 12ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston The above copyright notice and this permission notice shall be 13ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston included in all copies or substantial portions of the Software. 14ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 15ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT 19ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston DEALINGS IN THE SOFTWARE. 23ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 24ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston Except as contained in this notice, the name(s) of the above 25ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston copyright holders shall not be used in advertising or otherwise to 26ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston promote the sale, use or other dealings in this Software without 27ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston prior written authorization. 28ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston*/ 29ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 30ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <stdbool.h> 31ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <stdio.h> 32ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <stdlib.h> 33ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <assert.h> 34ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <GL/gl.h> 35a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston 36a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston/* <rdar://problem/6953344> */ 37a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#define glTexImage1D glTexImage1D_OSX 38a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#define glTexImage2D glTexImage2D_OSX 39a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#define glTexImage3D glTexImage3D_OSX 40ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <OpenGL/OpenGL.h> 41ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <OpenGL/CGLContext.h> 42ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include <OpenGL/CGLRenderers.h> 43a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#undef glTexImage1D 44a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#undef glTexImage2D 45a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston#undef glTexImage3D 46a1cb3babbef2af222b839a058694acc82a7074f1Jeremy Huddleston 47ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include "apple_cgl.h" 48ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include "apple_visual.h" 49ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston#include "apple_glx.h" 504c9bab78a118953baf307e31cd53e731299f0151Jeremy Huddleston#include "glxconfig.h" 51ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 52ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddlestonenum 53ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston{ 54ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston MAX_ATTR = 60 55ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston}; 56ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 57ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston/*mode is a __GlcontextModes*/ 58ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddlestonvoid 59ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddlestonapple_visual_create_pfobj(CGLPixelFormatObj * pfobj, const void *mode, 60ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston bool * double_buffered, bool * uses_stereo, 61ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston bool offscreen) 62ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston{ 63ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston CGLPixelFormatAttribute attr[MAX_ATTR]; 646ddf66e9230ee862ac341c4767cf6b3b2dd2552bKristian Høgsberg const struct glx_config *c = mode; 65ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston int numattr = 0; 66ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston GLint vsref = 0; 67ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston CGLError error = 0; 68ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 69ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (offscreen) { 70ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston apple_glx_diagnostic 71ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston ("offscreen rendering enabled. Using kCGLPFAOffScreen\n"); 72ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 73ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAOffScreen; 74ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAColorSize; 75ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = 32; 76ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 77ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston else if (getenv("LIBGL_ALWAYS_SOFTWARE") != NULL) { 78ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston apple_glx_diagnostic 79ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston ("Software rendering requested. Using kCGLRendererGenericFloatID.\n"); 80ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFARendererID; 81ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLRendererGenericFloatID; 82ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 83ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston else if (getenv("LIBGL_ALLOW_SOFTWARE") != NULL) { 84ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston apple_glx_diagnostic 85ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston ("Software rendering is not being excluded. Not using kCGLPFAAccelerated.\n"); 86ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 87ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston else { 88ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAAccelerated; 89ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 90ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 91ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston /* 92ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston * The program chose a config based on the fbconfigs or visuals. 93ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston * Those are based on the attributes from CGL, so we probably 94ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston * do want the closest match for the color, depth, and accum. 95ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston */ 96ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAClosestPolicy; 97ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 98ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (c->stereoMode) { 99ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAStereo; 100ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston *uses_stereo = true; 101ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 102ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston else { 103ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston *uses_stereo = false; 104ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 105ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 106ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (c->doubleBufferMode) { 107ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFADoubleBuffer; 108ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston *double_buffered = true; 109ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 110ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston else { 111ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston *double_buffered = false; 112ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 113ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 114ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAColorSize; 115ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->redBits + c->greenBits + c->blueBits; 116ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAAlphaSize; 117ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->alphaBits; 118ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 119ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if ((c->accumRedBits + c->accumGreenBits + c->accumBlueBits) > 0) { 120ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAAccumSize; 121ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->accumRedBits + c->accumGreenBits + 122ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston c->accumBlueBits + c->accumAlphaBits; 123ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 124ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 125ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (c->depthBits > 0) { 126ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFADepthSize; 127ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->depthBits; 128ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 129ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 130ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (c->stencilBits > 0) { 131ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAStencilSize; 132ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->stencilBits; 133ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 134ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 135ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (c->sampleBuffers > 0) { 136ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFAMultisample; 137ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFASampleBuffers; 138ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->sampleBuffers; 139ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = kCGLPFASamples; 140ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = c->samples; 141ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 142ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 143ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston attr[numattr++] = 0; 144ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 145ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston assert(numattr < MAX_ATTR); 146ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 147ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston error = apple_cgl.choose_pixel_format(attr, pfobj, &vsref); 148ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston 149ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston if (error) { 150ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston fprintf(stderr, "error: %s\n", apple_cgl.error_string(error)); 151ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston abort(); 152ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston } 153ad503c41557606d15b0420c824369456f6d20a8fJeremy Huddleston} 154