[Mesa-dev] [PATCH] mesa: Expose GL_OES_texture_float and GL_OES_texture_half_float.

[Matt Turner]

On Wed, May 7, 2014 at 4:18 AM, Kevin Rogovin <kevin.rogovin at intel.com> wrote:
>  Add support for GLES2 extensions for floating point and half
>  floating point textures (GL_OES_texture_float, GL_OES_texture_half_float,
>  GL_OES_texture_float_linear and GL_OES_texture_half_float_linear).

The patch basically looks good. We're lacking piglit tests for these
extensions, and I think we'll want some before we turn these
extensions on.

> ---
>  src/mesa/main/extensions.c | 12 +++++++++-
>  src/mesa/main/glformats.c  | 25 ++++++++++++++++++++
>  src/mesa/main/pack.c       | 17 +++++++++++++
>  src/mesa/main/teximage.c   | 59 ++++++++++++++++++++++++++++++++++++++++++++++
>  4 files changed, 112 insertions(+), 1 deletion(-)
>
> diff --git a/src/mesa/main/extensions.c b/src/mesa/main/extensions.c
> index c2ff7e3..e39f65e 100644
> --- a/src/mesa/main/extensions.c
> +++ b/src/mesa/main/extensions.c
> @@ -301,7 +301,17 @@ static const struct extension extension_table[] = {
>     { "GL_OES_texture_mirrored_repeat",             o(dummy_true),                                   ES1,       2005 },
>     { "GL_OES_texture_npot",                        o(ARB_texture_non_power_of_two),                 ES1 | ES2, 2005 },
>     { "GL_OES_vertex_array_object",                 o(dummy_true),                                   ES1 | ES2, 2010 },
> -
> +   /*
> +    * TODO:
> +    *  - rather than have an all or nothing approach for floating point textures,
> +    *    allow for driver to specify what parts of floating point texture functionality
> +    *    is supported: float/half-float and filtering for each.
> +    */
> +   { "GL_OES_texture_float",                       o(ARB_texture_float),                       ES2,            2005 },
> +   { "GL_OES_texture_half_float",                  o(ARB_texture_float),                       ES2,            2005 },
> +   { "GL_OES_texture_float_linear",                o(ARB_texture_float),                       ES2,            2005 },
> +   { "GL_OES_texture_half_float_linear",           o(ARB_texture_float),                       ES2,            2005 },
> +

These extensions still aren't sorted into the GL_OES_* list. I'll just
do that when I commit it. I don't see a lot of use in the TODO
comment, so I might remove it as well...?