From: Marek Olšák <[email protected]>
---
src/gallium/drivers/radeonsi/si_state_shaders.c | 34 +++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/src/gallium/drivers/radeonsi/si_state_shaders.c
b/src/gallium/drivers/radeonsi/si_state_shaders.c
index 9662625..f6bd129 100644
--- a/src/gallium/drivers/radeonsi/si_state_shaders.c
+++ b/src/gallium/drivers/radeonsi/si_state_shaders.c
@@ -686,20 +686,54 @@ static void si_shader_ps(struct si_shader *shader)
/* we need to enable at least one of them, otherwise we hang the GPU */
assert(G_0286CC_PERSP_SAMPLE_ENA(input_ena) ||
G_0286CC_PERSP_CENTER_ENA(input_ena) ||
G_0286CC_PERSP_CENTROID_ENA(input_ena) ||
G_0286CC_PERSP_PULL_MODEL_ENA(input_ena) ||
G_0286CC_LINEAR_SAMPLE_ENA(input_ena) ||
G_0286CC_LINEAR_CENTER_ENA(input_ena) ||
G_0286CC_LINEAR_CENTROID_ENA(input_ena) ||
G_0286CC_LINE_STIPPLE_TEX_ENA(input_ena));
+ /* POS_W_FLOAT_ENA requires one of the perspective weights. */
+ assert(!G_0286CC_POS_W_FLOAT_ENA(input_ena) ||
+ G_0286CC_PERSP_SAMPLE_ENA(input_ena) ||
+ G_0286CC_PERSP_CENTER_ENA(input_ena) ||
+ G_0286CC_PERSP_CENTROID_ENA(input_ena) ||
+ G_0286CC_PERSP_PULL_MODEL_ENA(input_ena));
+
+ /* Validate interpolation optimization flags (read as implications). */
+ assert(!shader->key.ps.prolog.bc_optimize_for_persp ||
+ (G_0286CC_PERSP_CENTER_ENA(input_ena) &&
+ G_0286CC_PERSP_CENTROID_ENA(input_ena)));
+ assert(!shader->key.ps.prolog.bc_optimize_for_linear ||
+ (G_0286CC_LINEAR_CENTER_ENA(input_ena) &&
+ G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
+ assert(!shader->key.ps.prolog.force_persp_center_interp ||
+ (!G_0286CC_PERSP_SAMPLE_ENA(input_ena) &&
+ !G_0286CC_PERSP_CENTROID_ENA(input_ena)));
+ assert(!shader->key.ps.prolog.force_linear_center_interp ||
+ (!G_0286CC_LINEAR_SAMPLE_ENA(input_ena) &&
+ !G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
+ assert(!shader->key.ps.prolog.force_persp_sample_interp ||
+ (!G_0286CC_PERSP_CENTER_ENA(input_ena) &&
+ !G_0286CC_PERSP_CENTROID_ENA(input_ena)));
+ assert(!shader->key.ps.prolog.force_linear_sample_interp ||
+ (!G_0286CC_LINEAR_CENTER_ENA(input_ena) &&
+ !G_0286CC_LINEAR_CENTROID_ENA(input_ena)));
+
+ /* Validate cases when the optimizations are off (read as
implications). */
+ assert(shader->key.ps.prolog.bc_optimize_for_persp ||
+ !G_0286CC_PERSP_CENTER_ENA(input_ena) ||
+ !G_0286CC_PERSP_CENTROID_ENA(input_ena));
+ assert(shader->key.ps.prolog.bc_optimize_for_linear ||
+ !G_0286CC_LINEAR_CENTER_ENA(input_ena) ||
+ !G_0286CC_LINEAR_CENTROID_ENA(input_ena));
pm4 = si_get_shader_pm4_state(shader);
if (!pm4)
return;
/* SPI_BARYC_CNTL.POS_FLOAT_LOCATION
* Possible vaules:
* 0 -> Position = pixel center
* 1 -> Position = pixel centroid
* 2 -> Position = at sample position
--
2.7.4
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