aboutsummaryrefslogtreecommitdiffstats
path: root/distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m
diff options
context:
space:
mode:
Diffstat (limited to 'distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m')
-rw-r--r--distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m281
1 files changed, 0 insertions, 281 deletions
diff --git a/distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m b/distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m
deleted file mode 100644
index ef44745..0000000
--- a/distrib/sdl-1.2.12/src/video/quartz/SDL_QuartzGL.m
+++ /dev/null
@@ -1,281 +0,0 @@
-/*
- SDL - Simple DirectMedia Layer
- Copyright (C) 1997-2003 Sam Lantinga
-
- This library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Library General Public
- License as published by the Free Software Foundation; either
- version 2 of the License, or (at your option) any later version.
-
- This library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Library General Public License for more details.
-
- You should have received a copy of the GNU Library General Public
- License along with this library; if not, write to the Free
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
-
- Sam Lantinga
- slouken@libsdl.org
-*/
-#include "SDL_config.h"
-
-#include "SDL_QuartzVideo.h"
-
-/*
- * GL_ARB_Multisample is supposed to be available in 10.1, according to Apple:
- *
- * http://developer.apple.com/opengl/extensions.html#GL_ARB_multisample
- *
- * ...but it isn't in the system headers, according to Sam:
- *
- * http://www.libsdl.org/pipermail/sdl/2003-December/058335.html
- *
- * These are normally enums and not #defines in the system headers.
- *
- * --ryan.
- */
-#if (MAC_OS_X_VERSION_MAX_ALLOWED < 1020)
-#define NSOpenGLPFASampleBuffers ((NSOpenGLPixelFormatAttribute) 55)
-#define NSOpenGLPFASamples ((NSOpenGLPixelFormatAttribute) 56)
-#endif
-
-
-@implementation NSOpenGLContext (CGLContextAccess)
-- (CGLContextObj) cglContext;
-{
- return _contextAuxiliary;
-}
-@end
-
-/* OpenGL helper functions (used internally) */
-
-int QZ_SetupOpenGL (_THIS, int bpp, Uint32 flags) {
-
- NSOpenGLPixelFormatAttribute attr[32];
- NSOpenGLPixelFormat *fmt;
- int i = 0;
- int colorBits = bpp;
-
- /* if a GL library hasn't been loaded at this point, load the default. */
- if (!this->gl_config.driver_loaded) {
- if (QZ_GL_LoadLibrary(this, NULL) == -1)
- return 0;
- }
-
- if ( flags & SDL_FULLSCREEN ) {
-
- attr[i++] = NSOpenGLPFAFullScreen;
- }
- /* In windowed mode, the OpenGL pixel depth must match device pixel depth */
- else if ( colorBits != device_bpp ) {
-
- colorBits = device_bpp;
- }
-
- attr[i++] = NSOpenGLPFAColorSize;
- attr[i++] = colorBits;
-
- attr[i++] = NSOpenGLPFADepthSize;
- attr[i++] = this->gl_config.depth_size;
-
- if ( this->gl_config.double_buffer ) {
- attr[i++] = NSOpenGLPFADoubleBuffer;
- }
-
- if ( this->gl_config.stereo ) {
- attr[i++] = NSOpenGLPFAStereo;
- }
-
- if ( this->gl_config.stencil_size != 0 ) {
- attr[i++] = NSOpenGLPFAStencilSize;
- attr[i++] = this->gl_config.stencil_size;
- }
-
- if ( (this->gl_config.accum_red_size +
- this->gl_config.accum_green_size +
- this->gl_config.accum_blue_size +
- this->gl_config.accum_alpha_size) > 0 ) {
- attr[i++] = NSOpenGLPFAAccumSize;
- 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;
- }
-
- if ( this->gl_config.multisamplebuffers != 0 ) {
- attr[i++] = NSOpenGLPFASampleBuffers;
- attr[i++] = this->gl_config.multisamplebuffers;
- }
-
- if ( this->gl_config.multisamplesamples != 0 ) {
- attr[i++] = NSOpenGLPFASamples;
- attr[i++] = this->gl_config.multisamplesamples;
- attr[i++] = NSOpenGLPFANoRecovery;
- }
-
- if ( this->gl_config.accelerated > 0 ) {
- attr[i++] = NSOpenGLPFAAccelerated;
- }
-
- attr[i++] = NSOpenGLPFAScreenMask;
- attr[i++] = CGDisplayIDToOpenGLDisplayMask (display_id);
- attr[i] = 0;
-
- fmt = [ [ NSOpenGLPixelFormat alloc ] initWithAttributes:attr ];
- if (fmt == nil) {
- SDL_SetError ("Failed creating OpenGL pixel format");
- return 0;
- }
-
- gl_context = [ [ NSOpenGLContext alloc ] initWithFormat:fmt
- shareContext:nil];
-
- [ fmt release ];
-
- if (gl_context == nil) {
- SDL_SetError ("Failed creating OpenGL context");
- return 0;
- }
-
- /* Synchronize QZ_GL_SwapBuffers() to vertical retrace.
- * (Apple's documentation is not completely clear about what this setting
- * exactly does, IMHO - for a detailed explanation see
- * http://lists.apple.com/archives/mac-opengl/2006/Jan/msg00080.html )
- */
- if ( this->gl_config.swap_control >= 0 ) {
- long value;
- value = this->gl_config.swap_control;
- [ gl_context setValues: &value forParameter: NSOpenGLCPSwapInterval ];
- }
-
- /*
- * Wisdom from Apple engineer in reference to UT2003's OpenGL performance:
- * "You are blowing a couple of the internal OpenGL function caches. This
- * appears to be happening in the VAO case. You can tell OpenGL to up
- * the cache size by issuing the following calls right after you create
- * the OpenGL context. The default cache size is 16." --ryan.
- */
-
- #ifndef GLI_ARRAY_FUNC_CACHE_MAX
- #define GLI_ARRAY_FUNC_CACHE_MAX 284
- #endif
-
- #ifndef GLI_SUBMIT_FUNC_CACHE_MAX
- #define GLI_SUBMIT_FUNC_CACHE_MAX 280
- #endif
-
- {
- long cache_max = 64;
- CGLContextObj ctx = [ gl_context cglContext ];
- CGLSetParameter (ctx, GLI_SUBMIT_FUNC_CACHE_MAX, &cache_max);
- CGLSetParameter (ctx, GLI_ARRAY_FUNC_CACHE_MAX, &cache_max);
- }
-
- /* End Wisdom from Apple Engineer section. --ryan. */
-
- return 1;
-}
-
-void QZ_TearDownOpenGL (_THIS) {
-
- [ NSOpenGLContext clearCurrentContext ];
- [ gl_context clearDrawable ];
- [ gl_context release ];
-}
-
-
-/* SDL OpenGL functions */
-static const char *DEFAULT_OPENGL_LIB_NAME =
- "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib";
-
-int QZ_GL_LoadLibrary (_THIS, const char *location) {
- if ( gl_context != NULL ) {
- SDL_SetError("OpenGL context already created");
- return -1;
- }
-
- if (opengl_library != NULL)
- SDL_UnloadObject(opengl_library);
-
- if (location == NULL)
- location = DEFAULT_OPENGL_LIB_NAME;
-
- opengl_library = SDL_LoadObject(location);
- if (opengl_library != NULL) {
- this->gl_config.driver_loaded = 1;
- return 0;
- }
-
- this->gl_config.driver_loaded = 0;
- return -1;
-}
-
-void* QZ_GL_GetProcAddress (_THIS, const char *proc) {
- return SDL_LoadFunction(opengl_library, proc);
-}
-
-int QZ_GL_GetAttribute (_THIS, SDL_GLattr attrib, int* value) {
-
- GLenum attr = 0;
-
- QZ_GL_MakeCurrent (this);
-
- switch (attrib) {
- case SDL_GL_RED_SIZE: attr = GL_RED_BITS; break;
- case SDL_GL_BLUE_SIZE: attr = GL_BLUE_BITS; break;
- case SDL_GL_GREEN_SIZE: attr = GL_GREEN_BITS; break;
- case SDL_GL_ALPHA_SIZE: attr = GL_ALPHA_BITS; break;
- case SDL_GL_DOUBLEBUFFER: attr = GL_DOUBLEBUFFER; break;
- case SDL_GL_DEPTH_SIZE: attr = GL_DEPTH_BITS; break;
- case SDL_GL_STENCIL_SIZE: attr = GL_STENCIL_BITS; break;
- case SDL_GL_ACCUM_RED_SIZE: attr = GL_ACCUM_RED_BITS; break;
- case SDL_GL_ACCUM_GREEN_SIZE: attr = GL_ACCUM_GREEN_BITS; break;
- case SDL_GL_ACCUM_BLUE_SIZE: attr = GL_ACCUM_BLUE_BITS; break;
- case SDL_GL_ACCUM_ALPHA_SIZE: attr = GL_ACCUM_ALPHA_BITS; break;
- case SDL_GL_STEREO: attr = GL_STEREO; break;
- case SDL_GL_MULTISAMPLEBUFFERS: attr = GL_SAMPLE_BUFFERS_ARB; break;
- case SDL_GL_MULTISAMPLESAMPLES: attr = GL_SAMPLES_ARB; break;
- case SDL_GL_BUFFER_SIZE:
- {
- GLint bits = 0;
- GLint component;
-
- /* there doesn't seem to be a single flag in OpenGL for this! */
- glGetIntegerv (GL_RED_BITS, &component); bits += component;
- glGetIntegerv (GL_GREEN_BITS,&component); bits += component;
- glGetIntegerv (GL_BLUE_BITS, &component); bits += component;
- glGetIntegerv (GL_ALPHA_BITS, &component); bits += component;
-
- *value = bits;
- return 0;
- }
- case SDL_GL_ACCELERATED_VISUAL:
- {
- long val;
- /* FIXME: How do we get this information here?
- [fmt getValues: &val forAttribute: NSOpenGLPFAAccelerated attr forVirtualScreen: 0];
- */
- val = (this->gl_config.accelerated != 0);;
- *value = val;
- return 0;
- }
- case SDL_GL_SWAP_CONTROL:
- {
- long val;
- [ gl_context getValues: &val forParameter: NSOpenGLCPSwapInterval ];
- *value = val;
- return 0;
- }
- }
-
- glGetIntegerv (attr, (GLint *)value);
- return 0;
-}
-
-int QZ_GL_MakeCurrent (_THIS) {
- [ gl_context makeCurrentContext ];
- return 0;
-}
-
-void QZ_GL_SwapBuffers (_THIS) {
- [ gl_context flushBuffer ];
-}
generated by cgit v1.1 at 2024-04-27 18:49:23 +0000