vo_gpu: d3d11: add RA caps for ra_d3d11

ra_d3d11 uses the SPIR-V compiler to translate GLSL to SPIR-V, which is
then translated to HLSL. This means it always exposes the same GLSL
version that the SPIR-V compiler supports (4.50 for shaderc/glslang.)

Despite claiming to support GLSL 4.50, some features that are tied to
the GLSL version in OpenGL are not supported by ra_d3d11 when targeting
legacy Direct3D feature levels.

This includes two features that mpv relies on:
- Reading from gl_FragCoord in the fragment shader (requires FL 10_0)
- textureGather from any texture component (requires FL 11_0)

These features have been exposed as new RA caps.

1 files changed, 1 insertions, 1 deletions

diff --git a/video/out/gpu/video_shaders.h b/video/out/gpu/video_shaders.h
index 8345e4c598..2ae2ac3fa9 100644
--- a/video/out/gpu/video_shaders.h
+++ b/video/out/gpu/video_shaders.h
@@ -30,7 +30,7 @@ void sampler_prelude(struct gl_shader_cache *sc, int tex_num);
 void pass_sample_separated_gen(struct gl_shader_cache *sc, struct scaler *scaler,
                                int d_x, int d_y);
 void pass_sample_polar(struct gl_shader_cache *sc, struct scaler *scaler,
-                       int components, int glsl_version);
+                       int components, bool sup_gather);
 void pass_compute_polar(struct gl_shader_cache *sc, struct scaler *scaler,
                         int components, int bw, int bh, int iw, int ih);
 void pass_sample_bicubic_fast(struct gl_shader_cache *sc);