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Mac OS X: Ported OpenGL library code to use frameworks instead of accessing libGL.dylib directly

This commit is contained in:
Elias Naur 2006-01-16 19:52:40 +00:00
parent 19d2d219ec
commit 8f7540ce43
1 changed files with 27 additions and 19 deletions
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46
src/native/macosx/context.m
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@ -37,36 +37,41 @@
* @version $Revision$
*/
#import <CoreFoundation/CoreFoundation.h>
#import "context.h"
#import <Cocoa/Cocoa.h>
#import <Carbon/Carbon.h>
static CFBundleRef opengl_bundle = NULL;
#include <mach-o/dyld.h>
static const struct mach_header *opengl_lib_handle = NULL;
void *extgl_GetProcAddress(const char *name)
{
#define BUFFER_SIZE 1024
char mach_name[BUFFER_SIZE] = "_";
strncat(mach_name, name, BUFFER_SIZE - 1);
NSSymbol sym = NSLookupSymbolInImage(opengl_lib_handle, mach_name, NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR);
void *address = NSAddressOfSymbol(sym);
void *extgl_GetProcAddress(const char *name) {
CFStringRef cf_name = CFStringCreateWithCString(NULL, name, kCFStringEncodingUTF8);
void *address = CFBundleGetFunctionPointerForName(opengl_bundle, cf_name);
CFRelease(cf_name);
if (address == NULL)
printfDebug("Could not locate symbol %s\n", name);
return address;
}
static const struct mach_header *loadImage(const char *lib_name) {
return NSAddImage(lib_name, NSADDIMAGE_OPTION_RETURN_ON_ERROR);
static CFBundleRef loadFramework(JNIEnv *env) {
CFStringRef framework_path = CFSTR("/System/Library/Frameworks/OpenGL.framework");
if (framework_path == NULL) {
printfDebugJava(env, "Failed to allocate string");
return NULL;
}
CFURLRef url = CFURLCreateWithFileSystemPath(NULL, framework_path, kCFURLPOSIXPathStyle, TRUE);
if (url == NULL) {
printfDebugJava(env, "Failed to allocate URL");
return NULL;
}
CFBundleRef opengl_bundle = CFBundleCreate(NULL, url);
CFRelease(url);
return opengl_bundle;
}
bool extgl_Open(JNIEnv *env) {
if (opengl_lib_handle != NULL)
if (opengl_bundle != NULL)
return true;
opengl_lib_handle = loadImage("/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib");
if (opengl_lib_handle != NULL) {
opengl_bundle = loadFramework(env);
if (opengl_bundle != NULL) {
return true;
} else {
throwException(env, "Could not load OpenGL library");
@ -76,7 +81,10 @@ bool extgl_Open(JNIEnv *env) {
void extgl_Close(void)
{
opengl_lib_handle = NULL;
if (opengl_bundle != NULL) {
CFRelease(opengl_bundle);
opengl_bundle = NULL;
}
}
NSOpenGLPixelFormat *choosePixelFormat(JNIEnv *env, jobject pixel_format, bool use_display_bpp, bool support_window, bool support_pbuffer, bool double_buffered) {