* - the shader uses at least 2 VMEM instructions, or
* - the code size is at least 50 2-dword instructions or 100 1-dword
* instructions.
+ *
+ * Shaders with side effects that must execute independently of the
+ * depth test require LATE_Z.
*/
- if (info->num_memory_instructions >= 2 ||
- shader->binary.code_size > 100*4)
+ if (info->writes_memory &&
+ !info->properties[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL])
+ shader->z_order = V_02880C_LATE_Z;
+ else if (info->num_memory_instructions >= 2 ||
+ shader->binary.code_size > 100*4)
shader->z_order = V_02880C_EARLY_Z_THEN_RE_Z;
else
shader->z_order = V_02880C_EARLY_Z_THEN_LATE_Z;
return si_shader_select_with_key(ctx, state, &key);
}
+static void si_parse_next_shader_property(const struct tgsi_shader_info *info,
+ union si_shader_key *key)
+{
+ unsigned next_shader = info->properties[TGSI_PROPERTY_NEXT_SHADER];
+
+ switch (info->processor) {
+ case TGSI_PROCESSOR_VERTEX:
+ switch (next_shader) {
+ case TGSI_PROCESSOR_GEOMETRY:
+ key->vs.as_es = 1;
+ break;
+ case TGSI_PROCESSOR_TESS_CTRL:
+ case TGSI_PROCESSOR_TESS_EVAL:
+ key->vs.as_ls = 1;
+ break;
+ }
+ break;
+
+ case TGSI_PROCESSOR_TESS_EVAL:
+ if (next_shader == TGSI_PROCESSOR_GEOMETRY)
+ key->tes.as_es = 1;
+ break;
+ }
+}
+
static void *si_create_shader_selector(struct pipe_context *ctx,
const struct pipe_shader_state *state)
{
break;
}
+ if (sel->info.properties[TGSI_PROPERTY_FS_EARLY_DEPTH_STENCIL])
+ sel->db_shader_control |= S_02880C_DEPTH_BEFORE_SHADER(1);
+
+ if (sel->info.writes_memory)
+ sel->db_shader_control |= S_02880C_EXEC_ON_HIER_FAIL(1) |
+ S_02880C_EXEC_ON_NOOP(1);
+
/* Compile the main shader part for use with a prolog and/or epilog. */
if (sel->type != PIPE_SHADER_GEOMETRY &&
!sscreen->use_monolithic_shaders) {
goto error;
shader->selector = sel;
+ si_parse_next_shader_property(&sel->info, &shader->key);
tgsi_binary = si_get_tgsi_binary(sel);
union si_shader_key key;
memset(&key, 0, sizeof(key));
+ si_parse_next_shader_property(&sel->info, &key);
/* Set reasonable defaults, so that the shader key doesn't
* cause any code to be eliminated.