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gallium/vl: Add rgba compute shader

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It only supports blending mode that va frontend expects, so prefer the old
fragment shader and only use the compute shader when gfx is not supported.

Reviewed-by: Leo Liu <leo.liu@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/32794>
This commit is contained in:
David Rosca 2025-01-01 11:31:00 +01:00 • committed by Marge Bot
parent 38979d3b4d
commit db348ac452
2 changed files with 50 additions and 1 deletions
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5
src/gallium/auxiliary/vl/vl_compositor.c
View file

@ -688,7 +688,10 @@ vl_compositor_set_rgba_layer(struct vl_compositor_state *s,
return;
s->used_layers |= 1 << layer;
s->layers[layer].fs = c->fs_rgba;
if (c->fs_rgba)
s->layers[layer].fs = c->fs_rgba;
else if (c->cs_rgba)
s->layers[layer].cs = c->cs_rgba;
s->layers[layer].samplers[0] = c->sampler_linear;
s->layers[layer].samplers[1] = NULL;
s->layers[layer].samplers[2] = NULL;

46
src/gallium/auxiliary/vl/vl_compositor_cs.c
View file

@ -277,6 +277,21 @@ static inline nir_def *cs_fetch_texel(struct cs_shader *s, nir_def *coords, unsi
return nir_tex_deref(b, tex_deref, tex_deref, nir_channels(b, coords, mask));
}
static inline nir_def *cs_image_load(struct cs_shader *s, nir_def *pos)
{
/*
imageLoad(image, pos.xy);
*/
nir_builder *b = &s->b;
nir_def *zero = nir_imm_int(b, 0);
nir_def *sample = nir_imm_int(b, 0);
pos = nir_pad_vector_imm_int(b, pos, 0, 4);
enum glsl_sampler_dim sampler_dim = s->array ? GLSL_SAMPLER_DIM_2D : GLSL_SAMPLER_DIM_RECT;
return nir_image_deref_load(b, 4, 32, &nir_build_deref_var(b, s->image)->def, pos, sample, zero,
.image_dim = sampler_dim,
.image_array = s->array);
}
static inline void cs_image_store(struct cs_shader *s, nir_def *pos, nir_def *color)
{
/*
@ -574,6 +589,29 @@ static nir_def *create_weave_shader(struct vl_compositor *c, bool rgb, bool y)
return cs_create_shader_state(c, &s);
}
static void *create_rgba_shader(struct vl_compositor *c)
{
struct cs_shader s = {
.name = "rgba",
.num_samplers = 1,
};
nir_builder *b = &s.b;
nir_def *ipos = cs_create_shader(c, &s);
nir_def *pos = cs_tex_coords(&s, ipos, COORDS_LUMA);
nir_def *pos_out = cs_translate(&s, ipos);
nir_def *col = cs_fetch_texel(&s, pos, 0);
nir_def *blend = cs_image_load(&s, pos_out);
nir_def *color = nir_flrp(b, blend, col, nir_channel(b, col, 3));
color = nir_vector_insert_imm(b, color, s.fone, 3);
cs_image_store(&s, pos_out, color);
return cs_create_shader_state(c, &s);
}
static void
cs_launch(struct vl_compositor *c,
void *cs,
@ -840,6 +878,12 @@ bool vl_compositor_cs_init_shaders(struct vl_compositor *c)
return false;
}
c->cs_rgba = create_rgba_shader(c);
if (!c->cs_rgba) {
debug_printf("Unable to create rgba compute shader.\n");
return false;
}
c->cs_yuv.weave.y = create_weave_shader(c, false, true);
c->cs_yuv.weave.uv = create_weave_shader(c, false, false);
c->cs_yuv.progressive.y = create_yuv_progressive_shader(c, VL_COMPOSITOR_PLANE_Y);
@ -877,6 +921,8 @@ void vl_compositor_cs_cleanup_shaders(struct vl_compositor *c)
c->pipe->delete_compute_state(c->pipe, c->cs_video_buffer);
if (c->cs_weave_rgb)
c->pipe->delete_compute_state(c->pipe, c->cs_weave_rgb);
if (c->cs_rgba)
c->pipe->delete_compute_state(c->pipe, c->cs_rgba);
if (c->cs_yuv.weave.y)
c->pipe->delete_compute_state(c->pipe, c->cs_yuv.weave.y);
if (c->cs_yuv.weave.uv)