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#import <Cocoa/Cocoa.h>
#import <OpenGL/gl.h>
#import <jni.h>
#import "ContextUpdater.h"
// see MacOSXPbufferGLContext.java createPbuffer
#define USE_GL_TEXTURE_RECTANGLE_EXT
#ifdef USE_GL_TEXTURE_RECTANGLE_EXT
#ifndef GL_TEXTURE_RECTANGLE_EXT
#define GL_TEXTURE_RECTANGLE_EXT 0x84F5
#endif
#endif
typedef int Bool;
NSAutoreleasePool* gAutoreleasePool = NULL;
void* createContext(void* shareContext, void* view,
int doubleBuffer,
int redBits,
int greenBits,
int blueBits,
int alphaBits,
int depthBits,
int stencilBits,
int accumRedBits,
int accumGreenBits,
int accumBlueBits,
int accumAlphaBits,
int sampleBuffers,
int numSamples)
{
int colorSize = redBits + greenBits + blueBits;
int accumSize = accumRedBits + accumGreenBits + accumBlueBits;
NSOpenGLContext *nsChareCtx = (NSOpenGLContext*)shareContext;
NSView *nsView = (NSView*)view;
if (nsView != NULL)
{
NSRect frame = [nsView frame];
if ((frame.size.width == 0) || (frame.size.height == 0))
{
fprintf(stderr, "Error: view width or height == 0at \"%s:%s:%d\"\n", __FILE__, __FUNCTION__, __LINE__);
// the view is not ready yet
return NULL;
}
else if ([nsView lockFocusIfCanDraw] == NO)
{
fprintf(stderr, "Error: view not ready, cannot lock focus at \"%s:%s:%d\"\n", __FILE__, __FUNCTION__, __LINE__);
// the view is not ready yet
return NULL;
}
}
if (gAutoreleasePool == NULL)
{
gAutoreleasePool = [[NSAutoreleasePool alloc] init];
}
NSOpenGLPixelFormatAttribute attribs[] =
{
NSOpenGLPFANoRecovery, YES,
NSOpenGLPFAAccelerated, YES,
NSOpenGLPFADoubleBuffer, YES,
NSOpenGLPFAColorSize, colorSize,
NSOpenGLPFAAlphaSize, alphaBits,
NSOpenGLPFADepthSize, depthBits,
NSOpenGLPFAStencilSize, stencilBits,
NSOpenGLPFAAccumSize, accumSize,
NSOpenGLPFASampleBuffers, sampleBuffers,
NSOpenGLPFASamples, numSamples,
0
};
NSOpenGLPixelFormat* fmt = [[NSOpenGLPixelFormat alloc] initWithAttributes:attribs];
NSOpenGLContext* nsContext = [[NSOpenGLContext alloc] initWithFormat:fmt shareContext:nsChareCtx];
[fmt release];
if (nsView != nil)
{
[nsContext setView:nsView];
[nsView unlockFocus];
}
[nsContext retain];
//fprintf(stderr, " nsContext=%p\n", nsContext);
return nsContext;
}
Bool makeCurrentContext(void* context, void* view)
{
//fprintf(stderr, "makeCurrentContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext makeCurrentContext];
return true;
}
Bool clearCurrentContext(void* context, void* view)
{
//fprintf(stderr, "clearCurrentContext context=%p, view=%p\n", context, view);
[NSOpenGLContext clearCurrentContext];
return true;
}
Bool deleteContext(void* context, void* view)
{
//fprintf(stderr, "deleteContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext clearDrawable];
[nsContext release];
return true;
}
Bool flushBuffer(void* context, void* view)
{
//fprintf(stderr, "flushBuffer context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext flushBuffer];
return true;
}
void updateContext(void* context, void* view)
{
//fprintf(stderr, "updateContext context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
[nsContext update];
}
void* updateContextRegister(void* context, void* view)
{
//fprintf(stderr, "updateContextRegister context=%p, view=%p\n", context, view);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSView *nsView = (NSView*)view;
ContextUpdater *contextUpdater = [[ContextUpdater alloc] init];
[contextUpdater registerFor:nsContext with:nsView];
return NULL;
}
void updateContextUnregister(void* context, void* view, void* updater)
{
//fprintf(stderr, "updateContextUnregister context=%p, view=%p\n", context, view);
ContextUpdater *contextUpdater = (ContextUpdater *)updater;
[contextUpdater release];
}
void* createPBuffer(int renderTarget, int width, int height)
{
// fprintf(stderr, "createPBuffer renderTarget=%d width=%d height=%d\n", renderTarget, width, height);
NSOpenGLPixelBuffer* pBuffer = [[NSOpenGLPixelBuffer alloc] initWithTextureTarget:renderTarget textureInternalFormat:GL_RGBA textureMaxMipMapLevel:0 pixelsWide:width pixelsHigh:height];
return pBuffer;
}
Bool destroyPBuffer(void* context, void* buffer)
{
//fprintf(stderr, "destroyPBuffer context=%p, buffer=%p\n", context, buffer);
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
if (nsContext != NULL)
{
[nsContext clearDrawable];
}
[pBuffer release];
return true;
}
void setContextPBuffer(void* context, void* buffer) {
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
[nsContext setPixelBuffer: pBuffer cubeMapFace: 0 mipMapLevel: 0 currentVirtualScreen: [nsContext currentVirtualScreen]];
}
void setContextTextureImageToPBuffer(void* context, void* buffer, int colorBuffer) {
NSOpenGLContext *nsContext = (NSOpenGLContext*)context;
NSOpenGLPixelBuffer *pBuffer = (NSOpenGLPixelBuffer*)buffer;
[nsContext setTextureImageToPixelBuffer: pBuffer colorBuffer: (unsigned long) colorBuffer];
}
#include <mach-o/dyld.h>
Bool imagesInitialized = false;
static char libGLStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib";
static char libGLUStr[] = "/System/Library/Frameworks/OpenGL.framework/Libraries/libGLU.dylib";
static const struct mach_header *libGLImage;
static const struct mach_header *libGLUImage;
void* getProcAddress(const char *procname)
{
if (imagesInitialized == false)
{
imagesInitialized = true;
unsigned long options = NSADDIMAGE_OPTION_RETURN_ON_ERROR;
libGLImage = NSAddImage(libGLStr, options);
libGLUImage = NSAddImage(libGLUStr, options);
}
unsigned long options = NSLOOKUPSYMBOLINIMAGE_OPTION_BIND | NSLOOKUPSYMBOLINIMAGE_OPTION_RETURN_ON_ERROR;
char underscoreName[512] = "_";
strcat(underscoreName, procname);
if (NSIsSymbolNameDefinedInImage(libGLImage, underscoreName) == YES)
{
NSSymbol sym = NSLookupSymbolInImage(libGLImage, underscoreName, options);
return NSAddressOfSymbol(sym);
}
if (NSIsSymbolNameDefinedInImage(libGLUImage, underscoreName) == YES)
{
NSSymbol sym = NSLookupSymbolInImage(libGLUImage, underscoreName, options);
return NSAddressOfSymbol(sym);
}
if (NSIsSymbolNameDefinedWithHint(underscoreName, "GL"))
{
NSSymbol sym = NSLookupAndBindSymbol(underscoreName);
return NSAddressOfSymbol(sym);
}
return NULL;
}
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