void GFXGLWindowTarget::resolveTo(GFXTextureObject* obj)
{
AssertFatal(dynamic_cast<GFXGLTextureObject*>(obj), "GFXGLTextureTarget::resolveTo - Incorrect type of texture, expected a GFXGLTextureObject");
GFXGLTextureObject* glTexture = static_cast<GFXGLTextureObject*>(obj);
if( gglHasExtension(ARB_copy_image) )
{
if(mBackBufferColorTex.getWidth() == glTexture->getWidth()
&& mBackBufferColorTex.getHeight() == glTexture->getHeight()
&& mBackBufferColorTex.getFormat() == glTexture->getFormat())
{
glCopyImageSubData(
static_cast<GFXGLTextureObject*>(mBackBufferColorTex.getPointer())->getHandle(), GL_TEXTURE_2D, 0, 0, 0, 0,
glTexture->getHandle(), GL_TEXTURE_2D, 0, 0, 0, 0,
getSize().x, getSize().y, 1);
return;
}
}
PRESERVE_FRAMEBUFFER();
if(!mCopyFBO)
{
glGenFramebuffers(1, &mCopyFBO);
}
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mCopyFBO);
glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, glTexture->getHandle(), 0);
glBindFramebuffer(GL_READ_FRAMEBUFFER, mBackBufferFBO);
glBlitFramebuffer(0, 0, getSize().x, getSize().y,
0, 0, glTexture->getWidth(), glTexture->getHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
}
void GFXGLWindowTarget::resolveTo(GFXTextureObject* obj)
{
AssertFatal(dynamic_cast<GFXGLTextureObject*>(obj), "GFXGLTextureTarget::resolveTo - Incorrect type of texture, expected a GFXGLTextureObject");
GFXGLTextureObject* glTexture = static_cast<GFXGLTextureObject*>(obj);
PRESERVE_FRAMEBUFFER();
GLuint dest;
glGenFramebuffersEXT(1, &dest);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, dest);
glFramebufferTexture2DEXT(GL_DRAW_FRAMEBUFFER_EXT, GL_COLOR_ATTACHMENT0_EXT, GL_TEXTURE_2D, glTexture->getHandle(), 0);
glBindFramebufferEXT(GL_READ_FRAMEBUFFER_EXT, 0);
glBlitFramebufferEXT(0, 0, getSize().x, getSize().y,
0, 0, glTexture->getWidth(), glTexture->getHeight(), GL_COLOR_BUFFER_BIT, GL_NEAREST);
glBindFramebufferEXT(GL_DRAW_FRAMEBUFFER_EXT, 0);
glDeleteFramebuffersEXT(1, &dest);
}