On Mit, 2009-03-18 at 12:46 -0700, Eric Anholt wrote:
> This requires upgrading the interface so that the argument to
> glXBindTexImageEXT isn't just dropped on the floor. Note that this only
> fixes the accelerated path on Intel, as Mesa's texture format support is
> missing x8r8g8b8 support (right now, GL_RGB textures get uploaded as a8r8gb8,
> but in this case we're not doing the upload so we can't really work around it
> that way).
>
> Fixes bugs with compositors trying to use shaders that use alpha channels, on
> windows without a valid alpha channel. Bug #19910 and likely others as well.
Cool, so I'll finally be able to use compiz on the Thinkpad. :)
> @@ -231,7 +231,7 @@ struct __DRItexOffsetExtensionRec {
>
>
> #define __DRI_TEX_BUFFER "DRI_TexBuffer"
> -#define __DRI_TEX_BUFFER_VERSION 1
> +#define __DRI_TEX_BUFFER_VERSION 2
> struct __DRItexBufferExtensionRec {
> __DRIextension base;
>
> @@ -239,11 +239,23 @@ struct __DRItexBufferExtensionRec {
> * Method to override base texture image with the contents of a
> * __DRIdrawable.
> *
> - * For GLX_EXT_texture_from_pixmap with AIGLX.
> + * For GLX_EXT_texture_from_pixmap with AIGLX. Deprecated in favor of
> + * setTexBuffer2 in version 2 of this interface
> */
> void (*setTexBuffer)(__DRIcontext *pDRICtx,
> GLint target,
> __DRIdrawable *pDraw);
> +
> + /**
> + * Method to override base texture image with the contents of a
> + * __DRIdrawable, including the required texture format attribute.
> + *
> + * For GLX_EXT_texture_from_pixmap with AIGLX.
> + */
> + void (*setTexBuffer2)(__DRIcontext *pDRICtx,
> + GLint target,
> + GLint format,
> + __DRIdrawable *pDraw);
> };
>
> /**
It might be better to create a new extension though, so the broken hook
can be phased out.
--
Earthling Michel Dänzer | http://www.vmware.com
Libre software enthusiast | Debian, X and DRI developer
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