143 lines
3.9 KiB
Plaintext
143 lines
3.9 KiB
Plaintext
/*
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* PixelBufferCocoa.cpp
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* OpenSceneGraph
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*
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* Created by Stephan Huber on 27.06.08.
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* Copyright 2008 Stephan Maximilian Huber, digital mind. All rights reserved.
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*
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*/
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#include <iostream>
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#include <osgViewer/api/Cocoa/PixelBufferCocoa>
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#include <osgViewer/api/Cocoa/GraphicsWindowCocoa>
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#include <Cocoa/Cocoa.h>
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namespace osgViewer {
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void PixelBufferCocoa::init()
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{
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//std::cout << "PixelBufferCocoa :: init not implemented yet " << std::endl;
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_valid = _initialized = true;
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}
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bool PixelBufferCocoa::realizeImplementation()
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{
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NSAutoreleasePool* pool = [[NSAutoreleasePool alloc] init];
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NSOpenGLPixelFormatAttribute attr[32];
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int i = 0;
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attr[i++] = NSOpenGLPFADepthSize;
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attr[i++] = static_cast<NSOpenGLPixelFormatAttribute>(_traits->depth);
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if (_traits->doubleBuffer) {
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attr[i++] = NSOpenGLPFADoubleBuffer;
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}
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if (_traits->alpha) {
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attr[i++] = NSOpenGLPFAAlphaSize;
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attr[i++] = static_cast<NSOpenGLPixelFormatAttribute>(_traits->alpha);
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}
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if (_traits->stencil) {
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attr[i++] = NSOpenGLPFAStencilSize;
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attr[i++] = static_cast<NSOpenGLPixelFormatAttribute>(_traits->stencil);
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}
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if (_traits->sampleBuffers) {
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attr[i++] = NSOpenGLPFASampleBuffers;
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attr[i++] = static_cast<NSOpenGLPixelFormatAttribute>(_traits->sampleBuffers);
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attr[i++] = NSOpenGLPFASamples;
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attr[i++] = static_cast<NSOpenGLPixelFormatAttribute>(_traits->samples);
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}
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attr[i++] = NSOpenGLPFAPixelBuffer; // for pbuffer usage
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attr[i++] = NSOpenGLPFAAccelerated;
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attr[i] = static_cast<NSOpenGLPixelFormatAttribute>(0);
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// create the context
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NSOpenGLContext* sharedContext = NULL;
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GraphicsHandleCocoa* graphicsHandleCocoa = dynamic_cast<GraphicsHandleCocoa*>(_traits->sharedContext.get());
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if (graphicsHandleCocoa)
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{
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sharedContext = graphicsHandleCocoa->getNSOpenGLContext();
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}
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NSOpenGLPixelFormat* pixelformat = [[NSOpenGLPixelFormat alloc] initWithAttributes:attr ];
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_context = [[NSOpenGLContext alloc] initWithFormat: pixelformat shareContext: sharedContext];
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NSOpenGLPixelBuffer* pbuffer = [[NSOpenGLPixelBuffer alloc] initWithTextureTarget: _traits->target textureInternalFormat: _traits->format textureMaxMipMapLevel: _traits->level pixelsWide: _traits->width pixelsHigh: _traits->height];
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[_context setPixelBuffer: pbuffer cubeMapFace: _traits->face mipMapLevel:_traits->level currentVirtualScreen: nil];
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[pool release];
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_realized = (_context != nil);
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return _realized;
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}
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void PixelBufferCocoa::closeImplementation()
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{
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_realized = false;
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}
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/** Make this graphics context current.*/
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bool PixelBufferCocoa::makeCurrentImplementation()
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{
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// OSG_INFO << "PixelBufferCocoa::makeCurrentImplementation" << std::endl;
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[_context makeCurrentContext];
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return true;
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}
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/** Make this graphics context current with specified read context implementation. */
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bool PixelBufferCocoa::makeContextCurrentImplementation(osg::GraphicsContext* readContext)
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{
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return makeCurrentImplementation();
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}
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/** Release the graphics context.*/
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bool PixelBufferCocoa::releaseContextImplementation()
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{
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// OSG_INFO << "PixelBufferCocoa::releaseContextImplementation" << std::endl;
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[NSOpenGLContext clearCurrentContext];
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return true;
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}
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/** Bind the graphics context to associated texture implementation.*/
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void PixelBufferCocoa::bindPBufferToTextureImplementation( GLenum buffer )
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{
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std::cout << "PixelBufferCocoa :: bindPBufferToTextureImplementation not implemented yet " << std::endl;
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}
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/** Swap the front and back buffers.*/
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void PixelBufferCocoa::swapBuffersImplementation()
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{
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OSG_INFO << "PixelBufferCocoa::swapBuffersImplementation" << std::endl;
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[_context flushBuffer];
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}
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PixelBufferCocoa::~PixelBufferCocoa()
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{
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[_context release];
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}
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}
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