[Mesa-dev] [PATCH 03/13] gallium: Introduce 32-bit bytewise format names

[Adam Jackson]

On Sun, 2013-06-16 at 10:22 -0700, Jose Fonseca wrote:

> Ok. I think this patch series is sound from an implementation POV. I
> see no point in delaying further. We can tweak things afterwards if
> deemed necessary.
> 
> Lets squash the commits, rename the XYZW8888 formats to go from
> low->high bit, and commit this into master.

Just so I'm clear, when you say "go from low to high bit", you mean that
in the new format names the first component in the name maps to the
least-significant bits in memory, thus:

#if defined(PIPE_ARCH_LITTLE_ENDIAN)
#define PIPE_FORMAT_RGBA8888_UNORM PIPE_FORMAT_R8G8B8A8_UNORM
#elif defined(PIPE_ARCH_BIG_ENDIAN)
#define PIPE_FORMAT_RGBA8888_UNORM PIPE_FORMAT_A8B8G8R8_UNORM
#endif

If I have this correct I'll send out a corrected series so we can get
this landed.

(The patch series as given plugs the XYZW8888 formats into enum
pipe_format; I think it'd be clearer to do the #define the other way
around at the end, as I have it above, since that way enum pipe_format
remains endian-independent.)

- ajax