Exemplo n.º 1
0
bool FECustomFilter::createMultisampleBuffer()
{
    ASSERT(!m_triedMultisampleBuffer);
    m_triedMultisampleBuffer = true;

    Extensions3D* extensions = m_context->getExtensions();
    if (!extensions
            || !extensions->maySupportMultisampling()
            || !extensions->supports("GL_ANGLE_framebuffer_multisample")
            || !extensions->supports("GL_ANGLE_framebuffer_blit")
            || !extensions->supports("GL_OES_rgb8_rgba8"))
        return false;

    extensions->ensureEnabled("GL_ANGLE_framebuffer_blit");
    extensions->ensureEnabled("GL_ANGLE_framebuffer_multisample");
    extensions->ensureEnabled("GL_OES_rgb8_rgba8");

    if (!m_multisampleFrameBuffer)
        m_multisampleFrameBuffer = m_context->createFramebuffer();
    if (!m_multisampleRenderBuffer)
        m_multisampleRenderBuffer = m_context->createRenderbuffer();
    if (!m_multisampleDepthBuffer)
        m_multisampleDepthBuffer = m_context->createRenderbuffer();

    return true;
}
Exemplo n.º 2
0
PassRefPtr<DrawingBuffer> DrawingBuffer::create(GraphicsContext3D* context, const IntSize& size, PreserveDrawingBuffer preserve, AlphaRequirement alpha)
{
    Extensions3D* extensions = context->getExtensions();
    bool multisampleSupported = extensions->maySupportMultisampling()
        && extensions->supports("GL_ANGLE_framebuffer_blit")
        && extensions->supports("GL_ANGLE_framebuffer_multisample")
        && extensions->supports("GL_OES_rgb8_rgba8");
    if (multisampleSupported) {
        extensions->ensureEnabled("GL_ANGLE_framebuffer_blit");
        extensions->ensureEnabled("GL_ANGLE_framebuffer_multisample");
        extensions->ensureEnabled("GL_OES_rgb8_rgba8");
    }
    bool packedDepthStencilSupported = extensions->supports("GL_OES_packed_depth_stencil");
    if (packedDepthStencilSupported)
        extensions->ensureEnabled("GL_OES_packed_depth_stencil");
    RefPtr<DrawingBuffer> drawingBuffer = adoptRef(new DrawingBuffer(context, size, multisampleSupported, packedDepthStencilSupported, preserve, alpha));
    return (drawingBuffer->m_context) ? drawingBuffer.release() : 0;
}