[Mesa-dev] [PATCH] mesa: Only require independent blending for GLES 3.2.

[Tapani Pälli]

On 01/22/2018 08:48 AM, Ilia Mirkin wrote:
> What es3 does require, though, is mrt. Maybe add something that ensures 
> that mrt is supported?

I guess that would be EXT_draw_buffers? That is currently enabled with 
'dummy_true'.


> On Jan 19, 2018 08:39, "Eric Anholt" <eric at anholt.net 
> <mailto:eric at anholt.net>> wrote:
> 
>     We've been requiring this since GLES 3.0 was introduced, but the
>     GLES 3.2
>     spec is the one that has "Supporting blending on a per-draw-buffer
>     basis"
>     in the new features.  V3D 3.3 would require lowering blending to shader
>     code to implement independent blending.
>     ---
>       src/mesa/main/version.c | 2 +-
>       1 file changed, 1 insertion(+), 1 deletion(-)
> 
>     diff --git a/src/mesa/main/version.c b/src/mesa/main/version.c
>     index 68079f4ebbba..1fce8fe7ca9c 100644
>     --- a/src/mesa/main/version.c
>     +++ b/src/mesa/main/version.c
>     @@ -516,7 +516,6 @@ compute_version_es2(const struct gl_extensions
>     *extensions,
>                                extensions->ARB_texture_float &&
>                                extensions->ARB_texture_rg &&
>                                extensions->ARB_depth_buffer_float &&
>     -                         extensions->EXT_draw_buffers2 &&
>                                /* extensions->ARB_framebuffer_object && */
>                                extensions->EXT_framebuffer_sRGB &&
>                                extensions->EXT_packed_float &&
>     @@ -546,6 +545,7 @@ compute_version_es2(const struct gl_extensions
>     *extensions,
>                                extensions->ARB_gpu_shader5 &&
>                                extensions->EXT_shader_integer_mix);
>          const bool ver_3_2 = (ver_3_1 &&
>     +                         extensions->EXT_draw_buffers2 &&
>                                extensions->KHR_blend_equation_advanced &&
>                                extensions->KHR_robustness &&
>                               
>     extensions->KHR_texture_compression_astc_ldr &&
>     --
>     2.15.0
> 
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