Mesa (master): v3d: Stop advertising support for flat shading.
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gitlab-mirror at kemper.freedesktop.org
Wed Feb 10 04:52:01 UTC 2021
Module: Mesa
Branch: master
Commit: bcb5f9f94ac77080848be46ce7bf3edcae07ac71
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=bcb5f9f94ac77080848be46ce7bf3edcae07ac71
Author: Eric Anholt <eric at anholt.net>
Date: Wed Jan 20 13:22:23 2021 -0800
v3d: Stop advertising support for flat shading.
The GL frontend can lower this weird GL feature away for us. This should
fix redeclaration of the gl_Color/SecondaryColor as centroid, since that
case had been missed in the !flat special case here.
Reviewed-by: Iago Toral Quiroga <itoral at igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/8601>
---
src/broadcom/compiler/nir_to_vir.c | 23 -----------------------
src/broadcom/compiler/v3d_compiler.h | 1 -
src/broadcom/vulkan/v3dv_pipeline.c | 3 ---
src/gallium/drivers/v3d/v3d_program.c | 2 --
src/gallium/drivers/v3d/v3d_screen.c | 1 +
5 files changed, 1 insertion(+), 29 deletions(-)
diff --git a/src/broadcom/compiler/nir_to_vir.c b/src/broadcom/compiler/nir_to_vir.c
index 05cca37b929..b308e3a3755 100644
--- a/src/broadcom/compiler/nir_to_vir.c
+++ b/src/broadcom/compiler/nir_to_vir.c
@@ -955,28 +955,6 @@ emit_fragment_varying(struct v3d_compile *c, nir_variable *var,
struct qreg result;
switch (var->data.interpolation) {
case INTERP_MODE_NONE:
- /* If a gl_FrontColor or gl_BackColor input has no interp
- * qualifier, then if we're using glShadeModel(GL_FLAT) it
- * needs to be flat shaded.
- */
- switch (var->data.location + array_index) {
- case VARYING_SLOT_COL0:
- case VARYING_SLOT_COL1:
- case VARYING_SLOT_BFC0:
- case VARYING_SLOT_BFC1:
- if (c->fs_key->shade_model_flat) {
- BITSET_SET(c->flat_shade_flags, i);
- vir_MOV_dest(c, c->undef, vary);
- result = vir_MOV(c, r5);
- } else {
- result = vir_FADD(c, vir_FMUL(c, vary,
- c->payload_w), r5);
- }
- goto done;
- default:
- break;
- }
- /* FALLTHROUGH */
case INTERP_MODE_SMOOTH:
if (var->data.centroid) {
BITSET_SET(c->centroid_flags, i);
@@ -1002,7 +980,6 @@ emit_fragment_varying(struct v3d_compile *c, nir_variable *var,
unreachable("Bad interp mode");
}
-done:
if (input_idx >= 0)
c->inputs[input_idx] = result;
return result;
diff --git a/src/broadcom/compiler/v3d_compiler.h b/src/broadcom/compiler/v3d_compiler.h
index 85f6e5a6310..785b70529ae 100644
--- a/src/broadcom/compiler/v3d_compiler.h
+++ b/src/broadcom/compiler/v3d_compiler.h
@@ -389,7 +389,6 @@ struct v3d_fs_key {
bool sample_coverage;
bool sample_alpha_to_coverage;
bool sample_alpha_to_one;
- bool shade_model_flat;
/* Mask of which color render targets are present. */
uint8_t cbufs;
uint8_t swap_color_rb;
diff --git a/src/broadcom/vulkan/v3dv_pipeline.c b/src/broadcom/vulkan/v3dv_pipeline.c
index e06d9e32a95..2895a885e9a 100644
--- a/src/broadcom/vulkan/v3dv_pipeline.c
+++ b/src/broadcom/vulkan/v3dv_pipeline.c
@@ -1188,9 +1188,6 @@ pipeline_populate_v3d_fs_key(struct v3d_fs_key *key,
key->point_coord_upper_left = true;
}
}
-
- /* FIXME: ditto, although for flat lighting. Again, neet to confirm.*/
- key->shade_model_flat = false;
}
static void
diff --git a/src/gallium/drivers/v3d/v3d_program.c b/src/gallium/drivers/v3d/v3d_program.c
index 762a1549619..c29db2d7831 100644
--- a/src/gallium/drivers/v3d/v3d_program.c
+++ b/src/gallium/drivers/v3d/v3d_program.c
@@ -613,8 +613,6 @@ v3d_update_compiled_fs(struct v3d_context *v3d, uint8_t prim_mode)
PIPE_SPRITE_COORD_UPPER_LEFT);
}
- key->shade_model_flat = v3d->rasterizer->base.flatshade;
-
struct v3d_compiled_shader *old_fs = v3d->prog.fs;
v3d->prog.fs = v3d_get_compiled_shader(v3d, &key->base, sizeof(*key));
if (v3d->prog.fs == old_fs)
diff --git a/src/gallium/drivers/v3d/v3d_screen.c b/src/gallium/drivers/v3d/v3d_screen.c
index e06f99d3a35..2d961a1d24a 100644
--- a/src/gallium/drivers/v3d/v3d_screen.c
+++ b/src/gallium/drivers/v3d/v3d_screen.c
@@ -258,6 +258,7 @@ v3d_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
return 1;
case PIPE_CAP_ALPHA_TEST:
+ case PIPE_CAP_FLATSHADE:
case PIPE_CAP_TWO_SIDED_COLOR:
case PIPE_CAP_VERTEX_COLOR_CLAMPED:
case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
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