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st/mesa: add ES sample-shading support

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We require the full ARB_gpu_shader5 for now, but in the future some
other CAP could get exposed to indicate that only the multisample-related
behavior of ARB_gpu_shader5 is available.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ilia Mirkin
2016-02-16 01:27:27 -05:00
parent 3002296cb6
commit 2c7f5fe296
2 changed files with 9 additions and 3 deletions
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6
docs/GL3.txt
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@@ -262,11 +262,11 @@ GLES3.2, GLSL ES 3.2
GL_OES_geometry_shader started (Marta)
GL_OES_gpu_shader5 DONE (all drivers that support GL_ARB_gpu_shader5)
GL_OES_primitive_bounding box not started
GL_OES_sample_shading not started (based on parts of GL_ARB_sample_shading, which is done for some drivers)
GL_OES_sample_variables not started (based on parts of GL_ARB_sample_shading, which is done for some drivers)
GL_OES_sample_shading DONE (nvc0, r600, radeonsi)
GL_OES_sample_variables DONE (nvc0, r600, radeonsi)
GL_OES_shader_image_atomic DONE (all drivers that support GL_ARB_shader_image_load_store)
GL_OES_shader_io_blocks not started (based on parts of GLSL 1.50, which is done)
GL_OES_shader_multisample_interpolation not started (based on parts of GL_ARB_gpu_shader5, which is done)
GL_OES_shader_multisample_interpolation DONE (nvc0, r600, radeonsi)
GL_OES_tessellation_shader not started (based on GL_ARB_tessellation_shader, which is done for some drivers)
GL_OES_texture_border_clamp DONE (all drivers)
GL_OES_texture_buffer DONE (core only)

6
src/mesa/state_tracker/st_extensions.c
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@@ -921,6 +921,12 @@ void st_init_extensions(struct pipe_screen *screen,
extensions->ARB_sync = GL_TRUE;
}
/* Needs PIPE_CAP_SAMPLE_SHADING + all the sample-related bits of
* ARB_gpu_shader5. This enables all the per-sample shading ES extensions.
*/
extensions->OES_sample_variables = extensions->ARB_sample_shading &&
extensions->ARB_gpu_shader5;
/* Maximum sample count. */
{
enum pipe_format color_formats[] = {