if (var->data.from_named_ifc_block) {
type = var->get_interface_type();
+
/* Find the member type before it was altered by lowering */
+ const glsl_type *type_wa = type->without_array();
member_type =
- type->fields.structure[type->field_index(var->name)].type;
- name = ralloc_strdup(NULL, type->without_array()->name);
+ type_wa->fields.structure[type_wa->field_index(var->name)].type;
+ name = ralloc_strdup(NULL, type_wa->name);
} else {
type = var->type;
member_type = NULL;
* feedback of arrays would be useless otherwise.
*/
for (unsigned j = 0; j < i; ++j) {
- if (!decls[j].is_varying())
- continue;
-
- if (tfeedback_decl::is_same(decls[i], decls[j])) {
- linker_error(prog, "Transform feedback varying %s specified "
- "more than once.", varying_names[i]);
- return false;
+ if (decls[j].is_varying()) {
+ if (tfeedback_decl::is_same(decls[i], decls[j])) {
+ linker_error(prog, "Transform feedback varying %s specified "
+ "more than once.", varying_names[i]);
+ return false;
+ }
}
}
}
if (has_xfb_qualifiers) {
qsort(tfeedback_decls, num_tfeedback_decls, sizeof(*tfeedback_decls),
cmp_xfb_offset);
- } else {
- xfb_prog->sh.LinkedTransformFeedback->api_enabled = true;
}
xfb_prog->sh.LinkedTransformFeedback->Varyings =
~varying_matches();
void record(ir_variable *producer_var, ir_variable *consumer_var);
unsigned assign_locations(struct gl_shader_program *prog,
- uint8_t *components,
+ uint8_t components[],
uint64_t reserved_slots);
void store_locations() const;
private:
bool is_varying_packing_safe(const glsl_type *type,
- const ir_variable *var);
+ const ir_variable *var) const;
/**
* If true, this driver disables varying packing, so all varyings need to
*/
bool
varying_matches::is_varying_packing_safe(const glsl_type *type,
- const ir_variable *var)
+ const ir_variable *var) const
{
if (consumer_stage == MESA_SHADER_TESS_EVAL ||
consumer_stage == MESA_SHADER_TESS_CTRL ||
/**
* Choose locations for all of the variable matches that were previously
* passed to varying_matches::record().
+ * \param components returns array[slot] of number of components used
+ * per slot (1, 2, 3 or 4)
+ * \param reserved_slots bitmask indicating which varying slots are already
+ * allocated
+ * \return number of slots (4-element vectors) allocated
*/
unsigned
varying_matches::assign_locations(struct gl_shader_program *prog,
- uint8_t *components,
+ uint8_t components[],
uint64_t reserved_slots)
{
/* If packing has been disabled then we cannot safely sort the varyings by
unsigned generic_location = 0;
unsigned generic_patch_location = MAX_VARYING*4;
bool previous_var_xfb_only = false;
+ unsigned previous_packing_class = ~0u;
+
+ /* For tranform feedback separate mode, we know the number of attributes
+ * is <= the number of buffers. So packing isn't critical. In fact,
+ * packing vec3 attributes can cause trouble because splitting a vec3
+ * effectively creates an additional transform feedback output. The
+ * extra TFB output may exceed device driver limits.
+ */
+ const bool dont_pack_vec3 =
+ (prog->TransformFeedback.BufferMode == GL_SEPARATE_ATTRIBS &&
+ prog->TransformFeedback.NumVarying > 0);
for (unsigned i = 0; i < this->num_matches; i++) {
unsigned *location = &generic_location;
-
const ir_variable *var;
const glsl_type *type;
bool is_vertex_input = false;
+
if (matches[i].consumer_var) {
var = matches[i].consumer_var;
type = get_varying_type(var, consumer_stage);
if (var->data.must_be_shader_input ||
(this->disable_varying_packing &&
!(previous_var_xfb_only && var->data.is_xfb_only)) ||
- (i > 0 && this->matches[i - 1].packing_class
- != this->matches[i].packing_class )) {
+ (previous_packing_class != this->matches[i].packing_class) ||
+ (this->matches[i].packing_order == PACKING_ORDER_VEC3 &&
+ dont_pack_vec3)) {
*location = ALIGN(*location, 4);
}
previous_var_xfb_only = var->data.is_xfb_only;
+ previous_packing_class = this->matches[i].packing_class;
/* The number of components taken up by this variable. For vertex shader
* inputs, we use the number of slots * 4, as they have different
const uint64_t slot_mask = ((1ull << slots) - 1) << (*location / 4u);
assert(slots > 0);
- if (reserved_slots & slot_mask) {
- *location = ALIGN(*location + 1, 4);
- slot_end = *location + num_components - 1;
- continue;
+
+ if ((reserved_slots & slot_mask) == 0) {
+ break;
}
- break;
+ *location = ALIGN(*location + 1, 4);
+ slot_end = *location + num_components - 1;
}
if (!var->data.patch && slot_end >= MAX_VARYING * 4u) {
*
* Therefore, the packing class depends only on the interpolation type.
*/
- unsigned packing_class = var->data.centroid | (var->data.sample << 1) |
- (var->data.patch << 2) |
- (var->data.must_be_shader_input << 3);
- packing_class *= 8;
- packing_class += var->is_interpolation_flat()
+ const unsigned interp = var->is_interpolation_flat()
? unsigned(INTERP_MODE_FLAT) : var->data.interpolation;
+
+ assert(interp < (1 << 3));
+
+ const unsigned packing_class = (interp << 0) |
+ (var->data.centroid << 3) |
+ (var->data.sample << 4) |
+ (var->data.patch << 5) |
+ (var->data.must_be_shader_input << 6);
+
return packing_class;
}
const match *x = (const match *) x_generic;
if (x->producer_var != NULL && x->producer_var->data.is_xfb_only)
- return match_comparator(x_generic, y_generic);
+ return match_comparator(x_generic, y_generic);
/* FIXME: When the comparator returns 0 it means the elements being
* compared are equivalent. However the qsort documentation says:
*/
foreach_in_list(ir_instruction, node, consumer->ir) {
ir_variable *const input_var = node->as_variable();
-
- if (input_var == NULL || input_var->data.mode != ir_var_shader_in)
- continue;
-
- matches.record(NULL, input_var);
+ if (input_var && input_var->data.mode == ir_var_shader_in) {
+ matches.record(NULL, input_var);
+ }
}
}
matches.store_locations();
for (unsigned i = 0; i < num_tfeedback_decls; ++i) {
- if (!tfeedback_decls[i].is_varying())
- continue;
-
- if (!tfeedback_decls[i].assign_location(ctx, prog)) {
- _mesa_hash_table_destroy(tfeedback_candidates, NULL);
- return false;
+ if (tfeedback_decls[i].is_varying()) {
+ if (!tfeedback_decls[i].assign_location(ctx, prog)) {
+ _mesa_hash_table_destroy(tfeedback_candidates, NULL);
+ return false;
+ }
}
}
_mesa_hash_table_destroy(tfeedback_candidates, NULL);
projects / mesa.git / blobdiff