static void
UnmarkAttachment(WebGLFBAttachPoint& attachment)
{
WebGLFramebufferAttachable* maybe = attachment.Texture();
if (!maybe)
maybe = attachment.Renderbuffer();
if (maybe)
maybe->UnmarkAttachment(attachment);
}
static bool
MatchOrReplaceSize(const WebGLFBAttachPoint& cur, uint32_t* const out_width,
uint32_t* const out_height)
{
if (!cur.HasImage())
return true;
uint32_t width;
uint32_t height;
cur.Size(&width, &height);
if (!*out_width) {
MOZ_ASSERT(!*out_height);
*out_width = width;
*out_height = height;
return true;
}
return (width == *out_width &&
height == *out_height);
}
GLenum
WebGLFramebuffer::GetFormatForAttachment(const WebGLFBAttachPoint& attachment) const
{
MOZ_ASSERT(attachment.IsDefined());
MOZ_ASSERT(attachment.Texture() || attachment.Renderbuffer());
if (attachment.Texture()) {
const WebGLTexture& tex = *attachment.Texture();
MOZ_ASSERT(tex.HasImageInfoAt(attachment.ImageTarget(), 0));
const WebGLTexture::ImageInfo& imgInfo = tex.ImageInfoAt(attachment.ImageTarget(),
0);
return imgInfo.EffectiveInternalFormat().get();
}
if (attachment.Renderbuffer())
return attachment.Renderbuffer()->InternalFormat();
return LOCAL_GL_NONE;
}
static bool
AttachmentsDontMatch(const WebGLFBAttachPoint& a, const WebGLFBAttachPoint& b)
{
if (a.Texture()) {
return (a.Texture() != b.Texture());
}
if (a.Renderbuffer()) {
return (a.Renderbuffer() != b.Renderbuffer());
}
return false;
}
static bool
RectsMatch(const WebGLFBAttachPoint& attachment,
const WebGLRectangleObject& rect)
{
return attachment.RectangleObject().HasSameDimensionsAs(rect);
}
static bool
IsIncomplete(const WebGLFBAttachPoint& cur)
{
return cur.IsDefined() && !cur.IsComplete();
}
