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ilo: speed up ilo_shader_select_kernel_routing() a bit

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Remember the order of the source attributes and avoid recomputation when it
does not change.
This commit is contained in:
Chia-I Wu
2013-06-24 16:26:25 +08:00
parent 9b18df6e08
commit 855b684141
2 changed files with 36 additions and 8 deletions
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40
src/gallium/drivers/ilo/ilo_shader.c
View File

@@ -900,20 +900,36 @@ ilo_shader_select_kernel_routing(struct ilo_shader_state *shader,
src_semantics = source->shader->out.semantic_names;
src_indices = source->shader->out.semantic_indices;
src_len = source->shader->out.count;
/* skip PSIZE and POSITION (how about the optional CLIPDISTs?) */
assert(src_semantics[0] == TGSI_SEMANTIC_PSIZE);
assert(src_semantics[1] == TGSI_SEMANTIC_POSITION);
routing->source_skip = 2;
routing->source_len = src_len - routing->source_skip;
src_semantics += routing->source_skip;
src_indices += routing->source_skip;
}
else {
src_semantics = kernel->in.semantic_names;
src_indices = kernel->in.semantic_indices;
src_len = kernel->in.count;
}
/* no change */
if (kernel->routing_initialized &&
routing->source_skip + routing->source_len <= src_len &&
kernel->routing_sprite_coord_enable == sprite_coord_enable &&
!memcmp(kernel->routing_src_semantics,
&src_semantics[routing->source_skip],
sizeof(kernel->routing_src_semantics[0]) * routing->source_len) &&
!memcmp(kernel->routing_src_indices,
&src_indices[routing->source_skip],
sizeof(kernel->routing_src_indices[0]) * routing->source_len))
return false;
if (source) {
/* skip PSIZE and POSITION (how about the optional CLIPDISTs?) */
assert(src_semantics[0] == TGSI_SEMANTIC_PSIZE);
assert(src_semantics[1] == TGSI_SEMANTIC_POSITION);
routing->source_skip = 2;
routing->source_len = src_len - routing->source_skip;
src_semantics += routing->source_skip;
src_indices += routing->source_skip;
}
else {
routing->source_skip = 0;
routing->source_len = src_len;
}
@@ -997,6 +1013,14 @@ ilo_shader_select_kernel_routing(struct ilo_shader_state *shader,
*/
routing->source_len = max_src_slot + 1;
/* remember the states of the source */
kernel->routing_initialized = true;
kernel->routing_sprite_coord_enable = sprite_coord_enable;
memcpy(kernel->routing_src_semantics, src_semantics,
sizeof(kernel->routing_src_semantics[0]) * routing->source_len);
memcpy(kernel->routing_src_indices, src_indices,
sizeof(kernel->routing_src_indices[0]) * routing->source_len);
return true;
}

4
src/gallium/drivers/ilo/shader/ilo_shader_internal.h
View File

@@ -116,6 +116,10 @@ struct ilo_shader {
void *kernel;
int kernel_size;
bool routing_initialized;
int routing_src_semantics[PIPE_MAX_SHADER_OUTPUTS];
int routing_src_indices[PIPE_MAX_SHADER_OUTPUTS];
uint32_t routing_sprite_coord_enable;
struct ilo_kernel_routing routing;
/* what does the push constant buffer consist of? */