source: downloads/RenderSystems/GL/src/OSX/OgreOSXRenderTexture.cpp @ 5

#include "OgreStableHeaders.h"

#include "OgreException.h"
#include "OgreLogManager.h"
#include "OgreRoot.h"
#include "OgreStringConverter.h"

#include "OgreGLRenderSystem.h"

#include "OgreOSXRenderTexture.h"
#include "OgreOSXCarbonContext.h"

#include <OpenGL/gl.h>
#define GL_EXT_texture_env_combine 1
#include <OpenGL/glext.h>
#include <OpenGL/glu.h>
#include <AGL/agl.h>

namespace Ogre
{
        OSXPBuffer::OSXPBuffer( PixelComponentType format, size_t width, size_t height ) : GLPBuffer( format, width, height ), mContext( NULL )
        {
                LogManager::getSingleton().logMessage( "OSXPBuffer::OSXPBuffer()" );
                createPBuffer();
                // Create context
                mContext = new OSXCarbonContext( mAGLContext );
    }
        
        OSXPBuffer::~OSXPBuffer()
        {
                LogManager::getSingleton().logMessage( "OSXPBuffer::~OSXPBuffer()" );
                delete mContext;
                destroyPBuffer();
        }

        GLContext* OSXPBuffer::getContext()
        {
                LogManager::getSingleton().logMessage( "OSXPBuffer::getContext()" );
                return mContext;
        }
        
        void OSXPBuffer::createPBuffer()
        {
                LogManager::getSingleton().logMessage( "OSXPBuffer::createPBuffer()" );
                
                GLint attrib[] = { AGL_NO_RECOVERY, GL_TRUE, AGL_ACCELERATED, GL_TRUE, AGL_RGBA, AGL_NONE };
                AGLPixelFormat pixelFormat = aglChoosePixelFormat(NULL, 0, attrib);
                mAGLContext = aglCreateContext(pixelFormat, NULL);
                
                //mAGLContext = aglGetCurrentContext();
                aglCreatePBuffer( mWidth, mHeight, GL_TEXTURE_2D, GL_RGBA, 0, &mPBuffer );
                
                GLint vs = aglGetVirtualScreen( mAGLContext );
                aglSetPBuffer( mAGLContext, mPBuffer, 0, 0, vs ); 
        }
        
        void OSXPBuffer::destroyPBuffer()
        {
                LogManager::getSingleton().logMessage( "OSXPBuffer::destroyPBuffer()" );
                aglDestroyPBuffer( mPBuffer );
        }
}