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panfrost: Implement native RECT textures

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We started honouring the normalized_coords flag in the texture
descriptor, but a bisection revealed that broke RECT textures -- since
we were *also* lowering them in the shader. So just remove the
shader-based lowering, use native RECT textures, and enjoy the nominal
reduction in complexity and performance boost.

Fixes: 3e47a1181b ("panfrost: Add MALI_SAMP_NORM_COORDS flag")

Signed-off-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
This commit is contained in:
Alyssa Rosenzweig
2019-08-14 08:44:40 -07:00
parent 6fe4822cca
commit 44a6c38bd6
1 changed files with 4 additions and 8 deletions
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src/panfrost/midgard/midgard_compile.c
+4 -8
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@@ -460,17 +460,12 @@ optimise_nir(nir_shader *nir)
NIR_PASS(progress, nir, midgard_nir_lower_fdot2);
NIR_PASS(progress, nir, nir_lower_idiv);
nir_lower_tex_options lower_tex_1st_pass_options = {
.lower_rect = true,
nir_lower_tex_options lower_tex_options = {
.lower_txs_lod = true,
.lower_txp = ~0
};
nir_lower_tex_options lower_tex_2nd_pass_options = {
.lower_txs_lod = true,
};
NIR_PASS(progress, nir, nir_lower_tex, &lower_tex_1st_pass_options);
NIR_PASS(progress, nir, nir_lower_tex, &lower_tex_2nd_pass_options);
NIR_PASS(progress, nir, nir_lower_tex, &lower_tex_options);
do {
progress = false;
@@ -1653,6 +1648,7 @@ midgard_tex_format(enum glsl_sampler_dim dim)
case GLSL_SAMPLER_DIM_2D:
case GLSL_SAMPLER_DIM_EXTERNAL:
case GLSL_SAMPLER_DIM_RECT:
return MALI_TEX_2D;
case GLSL_SAMPLER_DIM_3D: