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radv: add support for dynamic provoking vertex mode with NGG

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Signed-off-by: Samuel Pitoiset <samuel.pitoiset@gmail.com>
Reviewed-by: Rhys Perry <pendingchaos02@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/19168>
This commit is contained in:
Samuel Pitoiset 2022-10-19 15:57:52 +02:00 • committed by Marge Bot
parent d81cccbb77
commit 2cce8500de
1 changed files with 35 additions and 0 deletions
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35
src/amd/vulkan/radv_cmd_buffer.c
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@ -2191,6 +2191,33 @@ radv_emit_culling(struct radv_cmd_buffer *cmd_buffer)
radeon_set_context_reg(cmd_buffer->cs, R_028814_PA_SU_SC_MODE_CNTL, pa_su_sc_mode_cntl);
}
static void
radv_emit_provoking_vertex_mode(struct radv_cmd_buffer *cmd_buffer)
{
struct radv_graphics_pipeline *pipeline = cmd_buffer->state.graphics_pipeline;
const unsigned stage = pipeline->last_vgt_api_stage;
struct radv_dynamic_state *d = &cmd_buffer->state.dynamic;
struct radv_userdata_info *loc = &pipeline->last_vgt_api_stage_locs[AC_UD_NGG_PROVOKING_VTX];
unsigned provoking_vtx = 0;
uint32_t base_reg;
if (loc->sgpr_idx == -1)
return;
if (d->provoking_vertex_mode == VK_PROVOKING_VERTEX_MODE_LAST_VERTEX_EXT) {
if (stage == MESA_SHADER_VERTEX) {
provoking_vtx = si_conv_prim_to_gs_out(d->primitive_topology);
} else {
assert(stage == MESA_SHADER_GEOMETRY);
struct radv_shader *gs = pipeline->base.shaders[stage];
provoking_vtx = gs->info.gs.vertices_in - 1;
}
}
base_reg = pipeline->base.user_data_0[stage];
radeon_set_sh_reg(cmd_buffer->cs, base_reg + loc->sgpr_idx * 4, provoking_vtx);
}
static void
radv_emit_primitive_topology(struct radv_cmd_buffer *cmd_buffer)
{
@ -3944,6 +3971,9 @@ radv_cmd_buffer_flush_dynamic_state(struct radv_cmd_buffer *cmd_buffer, bool pip
RADV_CMD_DIRTY_DYNAMIC_PROVOKING_VERTEX_MODE))
radv_emit_culling(cmd_buffer);
if (states & RADV_CMD_DIRTY_DYNAMIC_PROVOKING_VERTEX_MODE)
radv_emit_provoking_vertex_mode(cmd_buffer);
if (states & RADV_CMD_DIRTY_DYNAMIC_PRIMITIVE_TOPOLOGY)
radv_emit_primitive_topology(cmd_buffer);
@ -5897,6 +5927,11 @@ radv_CmdBindPipeline(VkCommandBuffer commandBuffer, VkPipelineBindPoint pipeline
cmd_buffer->state.dirty |= RADV_CMD_DIRTY_DYNAMIC_PATCH_CONTROL_POINTS;
}
/* Re-emit the provoking vertex mode state because the SGPR idx can be different. */
if (graphics_pipeline->last_vgt_api_stage_locs[AC_UD_NGG_PROVOKING_VTX].sgpr_idx != -1) {
cmd_buffer->state.dirty |= RADV_CMD_DIRTY_DYNAMIC_PROVOKING_VERTEX_MODE;
}
radv_bind_dynamic_state(cmd_buffer, &graphics_pipeline->dynamic_state);
radv_bind_vs_input_state(cmd_buffer, graphics_pipeline);