diff options
Diffstat (limited to 'src/glx/apple/apple_glx.c')
| -rw-r--r-- | src/glx/apple/apple_glx.c | 214 |
1 files changed, 214 insertions, 0 deletions
diff --git a/src/glx/apple/apple_glx.c b/src/glx/apple/apple_glx.c new file mode 100644 index 0000000..d9bc091 --- /dev/null +++ b/src/glx/apple/apple_glx.c @@ -0,0 +1,214 @@ +/* + Copyright (c) 2008, 2009 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 <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <assert.h> +#include <stdarg.h> +#include <dlfcn.h> +#include "appledri.h" +#include "apple_glx.h" +#include "apple_glx_context.h" +#include "apple_cgl.h" +#include "apple_xgl_api.h" + +static bool initialized = false; +static int dri_event_base = 0; + +const GLuint __glXDefaultPixelStore[9] = { 0, 0, 0, 0, 0, 0, 0, 0, 1 }; + +#ifndef OPENGL_LIB_PATH +#define OPENGL_LIB_PATH "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib" +#endif + +static void *libgl_handle = NULL; + +static bool diagnostic = false; + +void +apple_glx_diagnostic(const char *fmt, ...) +{ + va_list vl; + + if (diagnostic) { + fprintf(stderr, "DIAG: "); + + va_start(vl, fmt); + vfprintf(stderr, fmt, vl); + va_end(vl); + } +} + +int +apple_get_dri_event_base(void) +{ + if (!initialized) { + fprintf(stderr, + "error: dri_event_base called before apple_init_glx!\n"); + abort(); + } + return dri_event_base; +} + +static void +surface_notify_handler(Display * dpy, unsigned int uid, int kind) +{ + + switch (kind) { + case AppleDRISurfaceNotifyDestroyed: + apple_glx_diagnostic("%s: surface destroyed %u\n", __func__, uid); + apple_glx_surface_destroy(uid); + break; + + case AppleDRISurfaceNotifyChanged:{ + int updated; + + updated = apple_glx_context_surface_changed(uid, pthread_self()); + + apple_glx_diagnostic("surface notify updated %d\n", updated); + } + break; + + default: + fprintf(stderr, "unhandled kind of event: %d in %s\n", kind, __func__); + } +} + +xp_client_id +apple_glx_get_client_id(void) +{ + static xp_client_id id; + + if (0 == id) { + if ((XP_Success != xp_init(XP_IN_BACKGROUND)) || + (Success != xp_get_client_id(&id))) { + return 0; + } + } + + return id; +} + +/* Return true if an error occured. */ +bool +apple_init_glx(Display * dpy) +{ + int eventBase, errorBase; + int major, minor, patch; + + if (!XAppleDRIQueryExtension(dpy, &eventBase, &errorBase)) + return true; + + if (!XAppleDRIQueryVersion(dpy, &major, &minor, &patch)) + return true; + + if (initialized) + return false; + + if (getenv("LIBGL_DIAGNOSTIC")) { + printf("initializing libGL in %s\n", __func__); + diagnostic = true; + } + + apple_cgl_init(); + apple_xgl_init_direct(); + libgl_handle = dlopen(OPENGL_LIB_PATH, RTLD_LAZY); + (void) apple_glx_get_client_id(); + + XAppleDRISetSurfaceNotifyHandler(surface_notify_handler); + + /* This should really be per display. */ + dri_event_base = eventBase; + initialized = true; + + return false; +} + +void +apple_glx_swap_buffers(void *ptr) +{ + struct apple_glx_context *ac = ptr; + + /* This may not be needed with CGLFlushDrawable: */ + glFlush(); + apple_cgl.flush_drawable(ac->context_obj); +} + +void * +apple_glx_get_proc_address(const GLubyte * procname) +{ + size_t len; + void *h, *s; + char *pname = (char *) procname; + + assert(NULL != procname); + len = strlen(pname); + + if (len < 3) { + return NULL; + } + + if ((pname != strstr(pname, "glX")) && (pname != strstr(pname, "gl"))) { + fprintf(stderr, + "warning: get proc address request is not for a gl or glX function"); + return NULL; + } + + /* Search using the default symbols first. */ + (void) dlerror(); /*drain dlerror */ + h = dlopen(NULL, RTLD_NOW); + if (NULL == h) { + fprintf(stderr, "warning: get proc address: %s\n", dlerror()); + return NULL; + } + + s = dlsym(h, pname); + + if (NULL == s) { + /* Try the libGL.dylib from the OpenGL.framework. */ + s = dlsym(libgl_handle, pname); + } + + dlclose(h); + + return s; +} + +void +apple_glx_waitx(Display * dpy, void *ptr) +{ + struct apple_private_context *ac = ptr; + + (void) ac; + + glFlush(); + glFinish(); + XSync(dpy, False); +} |