19682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 29682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL - Simple DirectMedia Layer 39682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Copyright (C) 1997-2012 Sam Lantinga 49682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 59682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is free software; you can redistribute it and/or 69682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall modify it under the terms of the GNU Library General Public 79682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License as published by the Free Software Foundation; either 89682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall version 2 of the License, or (at your option) any later version. 99682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall This library is distributed in the hope that it will be useful, 119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall but WITHOUT ANY WARRANTY; without even the implied warranty of 129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Library General Public License for more details. 149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall You should have received a copy of the GNU Library General Public 169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall License along with this library; if not, write to the Free 179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall Sam Lantinga 209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall slouken@libsdl.org 219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall*/ 229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_config.h" 239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#include "SDL_QuartzVideo.h" 259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* 279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * GL_ARB_Multisample is supposed to be available in 10.1, according to Apple: 289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * http://developer.apple.com/graphicsimaging/opengl/extensions.html#GL_ARB_multisample 309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * ...but it isn't in the system headers, according to Sam: 329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * http://lists.libsdl.org/pipermail/sdl-libsdl.org/2003-December/039794.html 349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * These are normally enums and not #defines in the system headers. 369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * 379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * --ryan. 389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#if (MAC_OS_X_VERSION_MAX_ALLOWED < 1020) 409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define NSOpenGLPFASampleBuffers ((NSOpenGLPixelFormatAttribute) 55) 419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#define NSOpenGLPFASamples ((NSOpenGLPixelFormatAttribute) 56) 429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#ifdef __powerpc__ /* we lost this in 10.6, which has no PPC support. */ 459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall@implementation NSOpenGLContext (CGLContextAccess) 469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall- (CGLContextObj) cglContext; 479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return _contextAuxiliary; 499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall@end 519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallCGLContextObj QZ_GetCGLContextObj(NSOpenGLContext *nsctx) 529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return [nsctx cglContext]; 549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#else 569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse HallCGLContextObj QZ_GetCGLContextObj(NSOpenGLContext *nsctx) 579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall{ 589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return (CGLContextObj) [nsctx CGLContextObj]; 599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall#endif 619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* OpenGL helper functions (used internally) */ 649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint QZ_SetupOpenGL (_THIS, int bpp, Uint32 flags) { 669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall NSOpenGLPixelFormatAttribute attr[32]; 689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall NSOpenGLPixelFormat *fmt; 699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int i = 0; 709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall int colorBits = bpp; 719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* if a GL library hasn't been loaded at this point, load the default. */ 739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (!this->gl_config.driver_loaded) { 749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (QZ_GL_LoadLibrary(this, NULL) == -1) 759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( flags & SDL_FULLSCREEN ) { 799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAFullScreen; 819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* In windowed mode, the OpenGL pixel depth must match device pixel depth */ 839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall else if ( colorBits != device_bpp ) { 849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall colorBits = device_bpp; 869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAColorSize; 899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = colorBits; 909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFADepthSize; 929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = this->gl_config.depth_size; 939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.double_buffer ) { 959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFADoubleBuffer; 969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.stereo ) { 999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAStereo; 1009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.stencil_size != 0 ) { 1039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAStencilSize; 1049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = this->gl_config.stencil_size; 1059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( (this->gl_config.accum_red_size + 1089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall this->gl_config.accum_green_size + 1099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall this->gl_config.accum_blue_size + 1109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall this->gl_config.accum_alpha_size) > 0 ) { 1119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAAccumSize; 1129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = this->gl_config.accum_red_size + this->gl_config.accum_green_size + this->gl_config.accum_blue_size + this->gl_config.accum_alpha_size; 1139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.multisamplebuffers != 0 ) { 1169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFASampleBuffers; 1179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = this->gl_config.multisamplebuffers; 1189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.multisamplesamples != 0 ) { 1219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFASamples; 1229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = this->gl_config.multisamplesamples; 1239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFANoRecovery; 1249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.accelerated > 0 ) { 1279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAAccelerated; 1289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = NSOpenGLPFAScreenMask; 1319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i++] = CGDisplayIDToOpenGLDisplayMask (display_id); 1329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall attr[i] = 0; 1339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall fmt = [ [ NSOpenGLPixelFormat alloc ] initWithAttributes:attr ]; 1359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (fmt == nil) { 1369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError ("Failed creating OpenGL pixel format"); 1379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 1389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall gl_context = [ [ NSOpenGLContext alloc ] initWithFormat:fmt 1419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall shareContext:nil]; 1429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ fmt release ]; 1449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (gl_context == nil) { 1469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError ("Failed creating OpenGL context"); 1479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 1489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* Synchronize QZ_GL_SwapBuffers() to vertical retrace. 1519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * (Apple's documentation is not completely clear about what this setting 1529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * exactly does, IMHO - for a detailed explanation see 1539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * http://lists.apple.com/archives/mac-opengl/2006/Jan/msg00080.html ) 1549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 1559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( this->gl_config.swap_control >= 0 ) { 1569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint value; 1579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall value = this->gl_config.swap_control; 1589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context setValues: &value forParameter: NSOpenGLCPSwapInterval ]; 1599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* 1629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * Wisdom from Apple engineer in reference to UT2003's OpenGL performance: 1639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * "You are blowing a couple of the internal OpenGL function caches. This 1649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * appears to be happening in the VAO case. You can tell OpenGL to up 1659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * the cache size by issuing the following calls right after you create 1669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall * the OpenGL context. The default cache size is 16." --ryan. 1679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 1689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #ifndef GLI_ARRAY_FUNC_CACHE_MAX 1709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #define GLI_ARRAY_FUNC_CACHE_MAX 284 1719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #endif 1729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #ifndef GLI_SUBMIT_FUNC_CACHE_MAX 1749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #define GLI_SUBMIT_FUNC_CACHE_MAX 280 1759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall #endif 1769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 1789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint cache_max = 64; 1799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall CGLContextObj ctx = QZ_GetCGLContextObj(gl_context); 1809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall CGLSetParameter (ctx, GLI_SUBMIT_FUNC_CACHE_MAX, &cache_max); 1819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall CGLSetParameter (ctx, GLI_ARRAY_FUNC_CACHE_MAX, &cache_max); 1829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 1839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* End Wisdom from Apple Engineer section. --ryan. */ 1859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 1; 1879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid QZ_TearDownOpenGL (_THIS) { 1909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ NSOpenGLContext clearCurrentContext ]; 1929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context clearDrawable ]; 1939682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context release ]; 1949682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 1959682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1969682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 1979682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall/* SDL OpenGL functions */ 1989682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallstatic const char *DEFAULT_OPENGL_LIB_NAME = 1999682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib"; 2009682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2019682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint QZ_GL_LoadLibrary (_THIS, const char *location) { 2029682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if ( gl_context != NULL ) { 2039682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_SetError("OpenGL context already created"); 2049682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 2059682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2069682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2079682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (opengl_library != NULL) 2089682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall SDL_UnloadObject(opengl_library); 2099682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2109682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (location == NULL) 2119682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall location = DEFAULT_OPENGL_LIB_NAME; 2129682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2139682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall opengl_library = SDL_LoadObject(location); 2149682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall if (opengl_library != NULL) { 2159682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall this->gl_config.driver_loaded = 1; 2169682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2179682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2189682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2199682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall this->gl_config.driver_loaded = 0; 2209682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return -1; 2219682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2229682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2239682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid* QZ_GL_GetProcAddress (_THIS, const char *proc) { 2249682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return SDL_LoadFunction(opengl_library, proc); 2259682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2269682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2279682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value) { 2289682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2299682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLenum attr = 0; 2309682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2319682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall QZ_GL_MakeCurrent (this); 2329682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2339682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall switch (attrib) { 2349682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_RED_SIZE: attr = GL_RED_BITS; break; 2359682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_BLUE_SIZE: attr = GL_BLUE_BITS; break; 2369682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_GREEN_SIZE: attr = GL_GREEN_BITS; break; 2379682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ALPHA_SIZE: attr = GL_ALPHA_BITS; break; 2389682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_DOUBLEBUFFER: attr = GL_DOUBLEBUFFER; break; 2399682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_DEPTH_SIZE: attr = GL_DEPTH_BITS; break; 2409682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_STENCIL_SIZE: attr = GL_STENCIL_BITS; break; 2419682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ACCUM_RED_SIZE: attr = GL_ACCUM_RED_BITS; break; 2429682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ACCUM_GREEN_SIZE: attr = GL_ACCUM_GREEN_BITS; break; 2439682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ACCUM_BLUE_SIZE: attr = GL_ACCUM_BLUE_BITS; break; 2449682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ACCUM_ALPHA_SIZE: attr = GL_ACCUM_ALPHA_BITS; break; 2459682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_STEREO: attr = GL_STEREO; break; 2469682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_MULTISAMPLEBUFFERS: attr = GL_SAMPLE_BUFFERS_ARB; break; 2479682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_MULTISAMPLESAMPLES: attr = GL_SAMPLES_ARB; break; 2489682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_BUFFER_SIZE: 2499682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 2509682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint bits = 0; 2519682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint component; 2529682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2539682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* there doesn't seem to be a single flag in OpenGL for this! */ 2549682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glGetIntegerv (GL_RED_BITS, &component); bits += component; 2559682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glGetIntegerv (GL_GREEN_BITS,&component); bits += component; 2569682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glGetIntegerv (GL_BLUE_BITS, &component); bits += component; 2579682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glGetIntegerv (GL_ALPHA_BITS, &component); bits += component; 2589682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2599682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall *value = bits; 2609682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2619682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2629682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_ACCELERATED_VISUAL: 2639682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 2649682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint val; 2659682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall /* FIXME: How do we get this information here? 2669682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [fmt getValues: &val forAttribute: NSOpenGLPFAAccelerated attr forVirtualScreen: 0]; 2679682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall */ 2689682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall val = (this->gl_config.accelerated != 0);; 2699682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall *value = val; 2709682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2719682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2729682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall case SDL_GL_SWAP_CONTROL: 2739682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall { 2749682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall GLint val; 2759682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context getValues: &val forParameter: NSOpenGLCPSwapInterval ]; 2769682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall *value = val; 2779682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2789682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2799682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall } 2809682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2819682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall glGetIntegerv (attr, (GLint *)value); 2829682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2839682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2849682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2859682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallint QZ_GL_MakeCurrent (_THIS) { 2869682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context makeCurrentContext ]; 2879682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall return 0; 2889682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 2899682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall 2909682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hallvoid QZ_GL_SwapBuffers (_THIS) { 2919682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall [ gl_context flushBuffer ]; 2929682c8870b8ff5e4ac2e4c70b759f791c6f38c1fJesse Hall} 293