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radv: compute correct number of input vertices for NGG

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>
This commit is contained in:
Samuel Pitoiset 2019-07-09 09:18:25 +02:00
parent 3303bc8b74
commit 4cadf4309c
1 changed files with 24 additions and 1 deletions
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25
src/amd/vulkan/radv_pipeline.c
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@ -1616,6 +1616,29 @@ static void clamp_gsprims_to_esverts(unsigned *max_gsprims, unsigned max_esverts
*max_gsprims = MIN2(*max_gsprims, 1 + max_reuse);
}
static unsigned
radv_get_num_input_vertices(struct radv_pipeline *pipeline)
{
if (radv_pipeline_has_gs(pipeline)) {
struct radv_shader_variant *gs =
radv_get_shader(pipeline, MESA_SHADER_GEOMETRY);
return gs->info.gs.vertices_in;
}
if (radv_pipeline_has_tess(pipeline)) {
struct radv_shader_variant *tes = radv_get_shader(pipeline, MESA_SHADER_TESS_EVAL);
if (tes->info.tes.point_mode)
return 1;
if (tes->info.tes.primitive_mode == GL_ISOLINES)
return 2;
return 3;
}
return 3;
}
static struct radv_ngg_state
calculate_ngg_info(const VkGraphicsPipelineCreateInfo *pCreateInfo,
struct radv_pipeline *pipeline)
@ -1625,7 +1648,7 @@ calculate_ngg_info(const VkGraphicsPipelineCreateInfo *pCreateInfo,
struct radv_es_output_info *es_info =
radv_pipeline_has_tess(pipeline) ? &gs_info->tes.es_info : &gs_info->vs.es_info;
unsigned gs_type = radv_pipeline_has_gs(pipeline) ? MESA_SHADER_GEOMETRY : MESA_SHADER_VERTEX;
unsigned max_verts_per_prim = 3; // triangles
unsigned max_verts_per_prim = radv_get_num_input_vertices(pipeline);
unsigned min_verts_per_prim =
gs_type == MESA_SHADER_GEOMETRY ? max_verts_per_prim : 1;
unsigned gs_num_invocations = 1;//MAX2(gs_info->gs.invocations, 1);