It's not nice to see this implemented for r300 and not enable it.
I guess this is something the other drivers needn't care about.
---
src/gallium/include/pipe/p_defines.h | 1 +
src/gallium/include/pipe/p_state.h | 1 +
src/mesa/state_tracker/st_atom_sampler.c | 1 +
src/mesa/state_tracker/st_extensions.c | 4 ++++
4 files changed, 7 insertions(+), 0 deletions(-)
diff --git a/src/gallium/include/pipe/p_defines.h
b/src/gallium/include/pipe/p_defines.h
index bac3300..67ffd83 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -463,6 +463,7 @@ enum pipe_cap {
PIPE_CAP_SHADER_STENCIL_EXPORT,
PIPE_CAP_TGSI_INSTANCEID,
PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR,
+ PIPE_CAP_SHADOW_COMPARE_FAIL_VALUE,
};
/* Shader caps not specific to any single stage */
diff --git a/src/gallium/include/pipe/p_state.h
b/src/gallium/include/pipe/p_state.h
index cf6c5b5..6e36a18 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -268,6 +268,7 @@ struct pipe_sampler_state
float lod_bias; /**< LOD/lambda bias */
float min_lod, max_lod; /**< LOD clamp range, after bias */
float border_color[4];
+ float compare_fail_value;
};
diff --git a/src/mesa/state_tracker/st_atom_sampler.c
b/src/mesa/state_tracker/st_atom_sampler.c
index 474cbd5..066f43e 100644
--- a/src/mesa/state_tracker/st_atom_sampler.c
+++ b/src/mesa/state_tracker/st_atom_sampler.c
@@ -192,6 +192,7 @@ update_samplers(struct st_context *st)
sampler->compare_mode = PIPE_TEX_COMPARE_R_TO_TEXTURE;
sampler->compare_func
= st_compare_func_to_pipe(texobj->CompareFunc);
+ sampler->compare_fail_value = texobj->CompareFailValue;
}
st->state.num_samplers = su + 1;
diff --git a/src/mesa/state_tracker/st_extensions.c
b/src/mesa/state_tracker/st_extensions.c
index e34f90f..a83e5db 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -519,6 +519,10 @@ void st_init_extensions(struct st_context *st)
ctx->Extensions.ARB_instanced_arrays = GL_TRUE;
}
+ if (screen->get_param(screen, PIPE_CAP_SHADOW_COMPARE_FAIL_VALUE)) {
+ ctx->Extensions.ARB_shadow_ambient = GL_TRUE;
+ }
+
if (screen->fence_finish) {
ctx->Extensions.ARB_sync = GL_TRUE;
}
--
1.7.1
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