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vl/compositor: separate YUV part from shader video buffer function

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So that it can be re-used

Acked-by: Christian König <christian.koenig@amd.com>
This commit is contained in:
Leo Liu
2017-09-15 13:45:45 -04:00
parent eb51838771
commit 4ef0828946
1 changed files with 18 additions and 13 deletions
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src/gallium/auxiliary/vl/vl_compositor.c
+18 -13
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@@ -239,20 +239,13 @@ create_frag_shader_csc(struct ureg_program *shader, struct ureg_dst texel,
ureg_release_temporary(shader, temp[i]);
}
static void *
create_frag_shader_video_buffer(struct vl_compositor *c)
static void
create_frag_shader_yuv(struct ureg_program *shader, struct ureg_dst texel)
{
struct ureg_program *shader;
struct ureg_src tc;
struct ureg_src sampler[3];
struct ureg_dst texel;
struct ureg_dst fragment;
unsigned i;
shader = ureg_create(PIPE_SHADER_FRAGMENT);
if (!shader)
return false;
tc = ureg_DECL_fs_input(shader, TGSI_SEMANTIC_GENERIC, VS_O_VTEX, TGSI_INTERPOLATE_LINEAR);
for (i = 0; i < 3; ++i) {
sampler[i] = ureg_DECL_sampler(shader, i);
@@ -262,17 +255,29 @@ create_frag_shader_video_buffer(struct vl_compositor *c)
TGSI_RETURN_TYPE_FLOAT,
TGSI_RETURN_TYPE_FLOAT);
}
texel = ureg_DECL_temporary(shader);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
/*
* texel.xyz = tex(tc, sampler[i])
* fragment = csc * texel
*/
for (i = 0; i < 3; ++i)
ureg_TEX(shader, ureg_writemask(texel, TGSI_WRITEMASK_X << i), TGSI_TEXTURE_2D_ARRAY, tc, sampler[i]);
}
static void *
create_frag_shader_video_buffer(struct vl_compositor *c)
{
struct ureg_program *shader;
struct ureg_dst texel;
struct ureg_dst fragment;
shader = ureg_create(PIPE_SHADER_FRAGMENT);
if (!shader)
return false;
texel = ureg_DECL_temporary(shader);
fragment = ureg_DECL_output(shader, TGSI_SEMANTIC_COLOR, 0);
create_frag_shader_yuv(shader, texel);
create_frag_shader_csc(shader, texel, fragment);
ureg_release_temporary(shader, texel);