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radv: gather if a vertex shaders needs the instance ID 

Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2019-06-26 15:11:02 +02:00
parent 17cb7ea6fc
commit e3baa54195
1 changed files with 14 additions and 4 deletions
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18
src/amd/vulkan/radv_shader_info.c
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@ -376,12 +376,21 @@ gather_info_block(const nir_shader *nir, const nir_block *block,
static void
gather_info_input_decl_vs(const nir_shader *nir, const nir_variable *var,
struct radv_shader_info *info)
struct radv_shader_info *info,
const struct radv_nir_compiler_options *options)
{
unsigned attrib_count = glsl_count_attribute_slots(var->type, true);
int idx = var->data.location;
if (idx >= VERT_ATTRIB_GENERIC0 && idx <= VERT_ATTRIB_GENERIC15)
info->vs.has_vertex_buffers = true;
for (unsigned i = 0; i < attrib_count; ++i) {
unsigned attrib_index = var->data.location + i - VERT_ATTRIB_GENERIC0;
if (options->key.vs.instance_rate_inputs & (1u << attrib_index))
info->vs.needs_instance_id = true;
}
}
static void
@ -418,11 +427,12 @@ gather_info_input_decl_ps(const nir_shader *nir, const nir_variable *var,
static void
gather_info_input_decl(const nir_shader *nir, const nir_variable *var,
struct radv_shader_info *info)
struct radv_shader_info *info,
const struct radv_nir_compiler_options *options)
{
switch (nir->info.stage) {
case MESA_SHADER_VERTEX:
gather_info_input_decl_vs(nir, var, info);
gather_info_input_decl_vs(nir, var, info, options);
break;
case MESA_SHADER_FRAGMENT:
gather_info_input_decl_ps(nir, var, info);
@ -557,7 +567,7 @@ radv_nir_shader_info_pass(const struct nir_shader *nir,
}
nir_foreach_variable(variable, &nir->inputs)
gather_info_input_decl(nir, variable, info);
gather_info_input_decl(nir, variable, info, options);
nir_foreach_block(block, func->impl) {
gather_info_block(nir, block, info);