Exemple #1
0
GC3Denum WebGLFramebuffer::checkStatus() const
{
    unsigned int count = 0;
    GC3Dsizei width = 0, height = 0;
    if (isDepthAttached()) {
        if (!isAttachmentComplete(m_depthAttachment.get(), GraphicsContext3D::DEPTH_ATTACHMENT))
            return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
        width = getImageWidth(m_depthAttachment.get());
        height = getImageHeight(m_depthAttachment.get());
        count++;
    }
    if (isStencilAttached()) {
        if (!isAttachmentComplete(m_stencilAttachment.get(), GraphicsContext3D::STENCIL_ATTACHMENT))
            return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
        if (!count) {
            width = getImageWidth(m_stencilAttachment.get());
            height = getImageHeight(m_stencilAttachment.get());
        } else {
            if (width != getImageWidth(m_stencilAttachment.get()) || height != getImageHeight(m_stencilAttachment.get()))
                return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_DIMENSIONS;
        }
        count++;
    }
    if (isDepthStencilAttached()) {
        if (!isAttachmentComplete(m_depthStencilAttachment.get(), GraphicsContext3D::DEPTH_STENCIL_ATTACHMENT))
            return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
        if (!isValidRenderbuffer(m_depthStencilAttachment.get()))
            return GraphicsContext3D::FRAMEBUFFER_UNSUPPORTED;
        if (!count) {
            width = getImageWidth(m_depthStencilAttachment.get());
            height = getImageHeight(m_depthStencilAttachment.get());
        } else {
            if (width != getImageWidth(m_depthStencilAttachment.get()) || height != getImageHeight(m_depthStencilAttachment.get()))
                return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_DIMENSIONS;
        }
        count++;
    }
    // WebGL specific: no conflicting DEPTH/STENCIL/DEPTH_STENCIL attachments.
    if (count > 1)
        return GraphicsContext3D::FRAMEBUFFER_UNSUPPORTED;
    if (isColorAttached()) {
        // FIXME: if color buffer is texture, is ALPHA, LUMINANCE or LUMINANCE_ALPHA valid?
        if (!getColorBufferFormat())
            return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
        if (!count) {
            if (!getColorBufferWidth() || !getColorBufferHeight())
                return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_ATTACHMENT;
        } else {
            if (width != getColorBufferWidth() || height != getColorBufferHeight())
                return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_DIMENSIONS;
        }
    } else {
        if (!count)
            return GraphicsContext3D::FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT;
    }
    return GraphicsContext3D::FRAMEBUFFER_COMPLETE;
}
bool WebGLFramebuffer::isIncomplete(bool checkInternalFormat) const
{
    unsigned int count = 0;
    if (isDepthAttached()) {
        if (checkInternalFormat && getInternalFormat(m_depthAttachment.get()) != GraphicsContext3D::DEPTH_COMPONENT16)
            return true;
        count++;
    }
    if (isStencilAttached()) {
        if (checkInternalFormat && getInternalFormat(m_stencilAttachment.get()) != GraphicsContext3D::STENCIL_INDEX8)
            return true;
        count++;
    }
    if (isDepthStencilAttached()) {
        if (checkInternalFormat && getInternalFormat(m_depthStencilAttachment.get()) != GraphicsContext3D::DEPTH_STENCIL)
            return true;
        if (!isValid(m_depthStencilAttachment.get()))
            return true;
        count++;
    }
    if (count > 1)
        return true;
    return false;
}