Hello,
Please review the patch below. It extends the gallium interface to allow
setting vertex texture sampler states.
This is an optional feature -- drivers not wishing to implement it
return 0 for PIPE_CAP_MAX_VERTEX_TEXTURES capability query. Drivers may
also choose to support it, but always fallback to software
implementation from the draw auxiliary module.
diff --git a/src/gallium/include/pipe/p_context.h
b/src/gallium/include/pipe/p_context.h
index 5569001..70f9c8b 100644
--- a/src/gallium/include/pipe/p_context.h
+++ b/src/gallium/include/pipe/p_context.h
@@ -124,6 +124,9 @@ struct pipe_context {
void * (*create_sampler_state)(struct pipe_context *,
const struct pipe_sampler_state *);
void (*bind_sampler_states)(struct pipe_context *, unsigned num,
void **);
+ void (*bind_vertex_sampler_states)(struct pipe_context *,
+ unsigned num_samplers,
+ void **samplers);
void (*delete_sampler_state)(struct pipe_context *, void *);
void * (*create_rasterizer_state)(struct pipe_context *,
@@ -184,6 +187,10 @@ struct pipe_context {
void (*set_vertex_elements)( struct pipe_context *,
unsigned num_elements,
const struct pipe_vertex_element * );
+
+ void (*set_vertex_sampler_textures)(struct pipe_context *,
+ unsigned num_textures,
+ struct pipe_texture **);
/*...@}*/
diff --git a/src/gallium/include/pipe/p_defines.h
b/src/gallium/include/pipe/p_defines.h
index fd14dc8..eac6904 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -390,6 +390,7 @@ enum pipe_transfer_usage {
#define PIPE_CAP_BLEND_EQUATION_SEPARATE 28
#define PIPE_CAP_SM3 29 /*< Shader Model 3
supported */
#define PIPE_CAP_MAX_PREDICATE_REGISTERS 30
+#define PIPE_CAP_MAX_VERTEX_TEXTURES 31
/**
diff --git a/src/gallium/include/pipe/p_state.h
b/src/gallium/include/pipe/p_state.h
index 287b424..ce22f89 100644
--- a/src/gallium/include/pipe/p_state.h
+++ b/src/gallium/include/pipe/p_state.h
@@ -60,6 +60,7 @@ extern "C" {
#define PIPE_MAX_COLOR_BUFS 8
#define PIPE_MAX_CONSTANT 32
#define PIPE_MAX_SAMPLERS 16
+#define PIPE_MAX_VERTEX_SAMPLERS 4
#define PIPE_MAX_SHADER_INPUTS 16
#define PIPE_MAX_SHADER_OUTPUTS 16
#define PIPE_MAX_TEXTURE_LEVELS 16
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