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;
}