On Fri, Sep 04, 2015 at 09:00:39AM +0100, Chris Wilson wrote:
> On Fri, Sep 04, 2015 at 08:51:25AM +0100, Chris Wilson wrote:
> > + /* We use the user's pixel format and type as a guide for the texture
> > + * format preferrring to store the texels in a matching format to the
> > + * incoming pixels. This ideally allows for a conversion free upload
> > + * and download path - but only if the requested internalFormat
> > + * requires no conversion.
> > + */
> > + if (_mesa_is_enum_format_unsized(internalFormat)) {
> > + /* unsized also implies no preferred internal datatype */
> > + mesa_format tex_format = _mesa_format_from_format_and_type(format,
> > type);
>
> The issue here is that _mesa_format_from_format_and_type() doesn't
> recognise all possible patterns and asserts. Is there a safe it could
> return?
A second issue is how to resolve the render-to-texture conflicts, e.g.
gl-3.2-layered-rendering-framebuffer-layer-complete. Is exchanging
texture formats at that point a tractable solution?
-Chris
--
Chris Wilson, Intel Open Source Technology Centre
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