this repo has no description
Initial work on CGS Apple private APIs
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-6
+2
src/frameworks/OpenGL/CMakeLists.txt
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src/frameworks/OpenGL/CMakeLists.txt
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src/frameworks/OpenGL/OpenGL.c
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src/frameworks/OpenGL/OpenGL.c
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#include <OpenGL/OpenGL.h>
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#include <OpenGL/CGLInternal.h>
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#include <CoreFoundation/CFDictionary.h>
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// Try to get the right (generic) type definitions.
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// In particular, we really want EGLNativeDisplayType to be void *,
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EGL_NONE
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};
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struct _CGLDisplay
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{
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EGLDisplay display;
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EGLConfig config;
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int num_config;
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};
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static CFMutableDictionaryRef g_displays;
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struct _CGLContextObj {
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GLuint retain_count;
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pthread_mutex_t lock;
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}
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}
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__attribute__((constructor))
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static void _CGLInitialize(void)
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{
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g_displays = CFDictionaryCreateMutable(NULL, 0, NULL, NULL);
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}
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static int attributes_count(const CGLPixelFormatAttribute *attrs) {
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int result;
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for (result = 0; attrs[result] != 0; result++) {
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return kCGLNoError;
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}
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static struct _CGLDisplay* getCGLDisplay(CGSConnectionID cid)
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{
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struct _CGLDisplay* rv = (struct _CGLDisplay*) CFDictionaryGetValue(g_displays, (const void*)(unsigned long) cid);
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if (!rv)
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{
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EGLDisplay disp = eglGetDisplay(_CGSNativeDisplay(cid));
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if (disp == EGL_NO_DISPLAY)
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return NULL;
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rv = (struct _CGLDisplay*) malloc(sizeof(*rv));
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rv->display = disp;
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eglInitialize(rv->display, NULL, NULL);
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eglChooseConfig(rv->display, attribute_list, &rv->config, 1, &rv->num_config);
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eglBindAPI(EGL_OPENGL_API);
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CFDictionaryAddValue(g_displays, (const void*)(unsigned long) cid, rv);
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}
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return rv;
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}
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CGLError CGLSetSurface(CGLContextObj gl, CGSConnectionID cid, CGSWindowID wid, CGSSurfaceID sid)
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{
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struct _CGLDisplay* disp = getCGLDisplay(cid);
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if (!disp)
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return kCGLBadConnection;
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EGLNativeWindowType window = (EGLNativeWindowType) _CGSNativeWindowForSurfaceID(cid, wid, sid);
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if (!window)
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return kCGLBadWindow;
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gl->egl_surface = eglCreateWindowSurface(disp->display, disp->config, window, NULL);
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if (gl->egl_surface == EGL_NO_SURFACE)
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return kCGLBadState;
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return kCGLNoError;
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}
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CGLContextObj CGWindowContextCreate(CGSConnectionID cid, CGSWindowID wid, CFDictionaryRef options)
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{
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struct _CGLDisplay* disp = getCGLDisplay(cid);
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if (!disp)
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return NULL;
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EGLNativeWindowType window = (EGLNativeWindowType) _CGSNativeWindowForID(cid, wid);
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if (!window)
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return NULL;
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CGLContextObj context;
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CGLError err = CGLCreateContext(NULL, NULL, &context);
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if (err != kCGLNoError)
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return NULL;
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context->egl_surface = eglCreateWindowSurface(disp->display, disp->config, window, NULL);
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if (context->egl_surface == EGL_NO_SURFACE)
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{
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CGLReleaseContext(context);
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return NULL;
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}
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return context;
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}
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CGLWindowRef CGLGetWindow(void *native_window) {
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EGLNativeWindowType window = (EGLNativeWindowType) native_window;
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*resultp = context;
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return kCGLNoError;
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}
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CGLError CGLSwapBuffers(CGLWindowRef window) {
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eglSwapBuffers(display, window);
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return kCGLNoError;
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}
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+4
-1
src/frameworks/OpenGL/include/OpenGL/CGLInternal.h
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src/frameworks/OpenGL/include/OpenGL/CGLInternal.h
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#define _CGL_INTERNAL_H_
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#include <OpenGL/OpenGL.h>
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#include <CoreGraphics/CoreGraphicsPrivate.h>
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#include <CoreFoundation/CFDictionary.h>
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#ifdef __cplusplus
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extern "C" {
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CGL_EXPORT void CGLDestroyWindow(CGLWindowRef window);
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CGL_EXPORT CGLError CGLContextMakeCurrentAndAttachToWindow(CGLContextObj context, CGLWindowRef window);
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CGL_EXPORT CGLError CGLSwapBuffers(CGLWindowRef window);
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CGLError CGLSetSurface(CGLContextObj gl, CGSConnectionID cid, CGSWindowID wid, CGSSurfaceID sid);
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CGLContextObj CGWindowContextCreate(CGSConnectionID cid, CGSWindowID wid, CFDictionaryRef options);
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#ifdef __cplusplus
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}