mirror of
https://gitlab.freedesktop.org/mesa/mesa.git
synced 2026-05-24 23:38:10 +02:00
127 lines
3.6 KiB
C
127 lines
3.6 KiB
C
/*
|
|
Copyright (c) 2008 Apple Inc.
|
|
|
|
Permission is hereby granted, free of charge, to any person
|
|
obtaining a copy of this software and associated documentation files
|
|
(the "Software"), to deal in the Software without restriction,
|
|
including without limitation the rights to use, copy, modify, merge,
|
|
publish, distribute, sublicense, and/or sell copies of the Software,
|
|
and to permit persons to whom the Software is furnished to do so,
|
|
subject to the following conditions:
|
|
|
|
The above copyright notice and this permission notice shall be
|
|
included in all copies or substantial portions of the Software.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT
|
|
HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
|
|
WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
DEALINGS IN THE SOFTWARE.
|
|
|
|
Except as contained in this notice, the name(s) of the above
|
|
copyright holders shall not be used in advertising or otherwise to
|
|
promote the sale, use or other dealings in this Software without
|
|
prior written authorization.
|
|
*/
|
|
|
|
#include <stdbool.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <dlfcn.h>
|
|
|
|
#include "apple_cgl.h"
|
|
#include "apple_glx.h"
|
|
|
|
#ifndef OPENGL_FRAMEWORK_PATH
|
|
#define OPENGL_FRAMEWORK_PATH "/System/Library/Frameworks/OpenGL.framework/Versions/A/OpenGL"
|
|
#endif
|
|
|
|
static void *dl_handle = NULL;
|
|
|
|
struct apple_cgl_api apple_cgl;
|
|
|
|
static bool initialized = false;
|
|
|
|
static void *
|
|
sym(void *h, const char *name)
|
|
{
|
|
void *s;
|
|
|
|
s = dlsym(h, name);
|
|
|
|
if (NULL == s) {
|
|
fprintf(stderr, "error: %s\n", dlerror());
|
|
abort();
|
|
}
|
|
|
|
return s;
|
|
}
|
|
|
|
void
|
|
apple_cgl_init(void)
|
|
{
|
|
void *h;
|
|
const char *opengl_framework_path;
|
|
|
|
if (initialized)
|
|
return;
|
|
|
|
opengl_framework_path = getenv("OPENGL_FRAMEWORK_PATH");
|
|
if (!opengl_framework_path) {
|
|
opengl_framework_path = OPENGL_FRAMEWORK_PATH;
|
|
}
|
|
|
|
(void) dlerror(); /*drain dlerror */
|
|
h = dlopen(opengl_framework_path, RTLD_NOW);
|
|
|
|
if (NULL == h) {
|
|
fprintf(stderr, "error: unable to dlopen %s : %s\n",
|
|
opengl_framework_path, dlerror());
|
|
abort();
|
|
}
|
|
|
|
dl_handle = h;
|
|
|
|
apple_cgl.get_version = sym(h, "CGLGetVersion");
|
|
|
|
apple_cgl.get_version(&apple_cgl.version_major, &apple_cgl.version_minor);
|
|
|
|
apple_glx_diagnostic("CGL major %d minor %d\n", apple_cgl.version_major, apple_cgl.version_minor);
|
|
|
|
if (1 != apple_cgl.version_major) {
|
|
fprintf(stderr, "WARNING: the CGL major version has changed!\n"
|
|
"libGL may be incompatible!\n");
|
|
}
|
|
|
|
apple_cgl.choose_pixel_format = sym(h, "CGLChoosePixelFormat");
|
|
apple_cgl.destroy_pixel_format = sym(h, "CGLDestroyPixelFormat");
|
|
|
|
apple_cgl.clear_drawable = sym(h, "CGLClearDrawable");
|
|
apple_cgl.flush_drawable = sym(h, "CGLFlushDrawable");
|
|
|
|
apple_cgl.create_context = sym(h, "CGLCreateContext");
|
|
apple_cgl.destroy_context = sym(h, "CGLDestroyContext");
|
|
|
|
apple_cgl.set_current_context = sym(h, "CGLSetCurrentContext");
|
|
apple_cgl.get_current_context = sym(h, "CGLGetCurrentContext");
|
|
apple_cgl.error_string = sym(h, "CGLErrorString");
|
|
|
|
apple_cgl.set_off_screen = sym(h, "CGLSetOffScreen");
|
|
|
|
apple_cgl.copy_context = sym(h, "CGLCopyContext");
|
|
|
|
apple_cgl.create_pbuffer = sym(h, "CGLCreatePBuffer");
|
|
apple_cgl.destroy_pbuffer = sym(h, "CGLDestroyPBuffer");
|
|
apple_cgl.set_pbuffer = sym(h, "CGLSetPBuffer");
|
|
|
|
initialized = true;
|
|
}
|
|
|
|
void *
|
|
apple_cgl_get_dl_handle(void)
|
|
{
|
|
return dl_handle;
|
|
}
|