#include "ir.h"
#include "linker.h"
#include "ir_uniform.h"
-#include "glsl_symbol_table.h"
-#include "program/hash_table.h"
/* These functions are put in a "private" namespace instead of being marked
* static so that the unit tests can access them. See
return NULL;
}
+static unsigned
+get_uniform_block_index(const gl_shader_program *shProg,
+ const char *uniformBlockName)
+{
+ for (unsigned i = 0; i < shProg->NumBufferInterfaceBlocks; i++) {
+ if (!strcmp(shProg->BufferInterfaceBlocks[i].Name, uniformBlockName))
+ return i;
+ }
+
+ return GL_INVALID_INDEX;
+}
+
void
copy_constant_to_storage(union gl_constant_value *storage,
const ir_constant *val,
const enum glsl_base_type base_type,
- const unsigned int elements)
+ const unsigned int elements,
+ unsigned int boolean_true)
{
for (unsigned int i = 0; i < elements; i++) {
switch (base_type) {
case GLSL_TYPE_FLOAT:
storage[i].f = val->value.f[i];
break;
+ case GLSL_TYPE_DOUBLE:
+ /* XXX need to check on big-endian */
+ storage[i * 2].u = *(uint32_t *)&val->value.d[i];
+ storage[i * 2 + 1].u = *(((uint32_t *)&val->value.d[i]) + 1);
+ break;
case GLSL_TYPE_BOOL:
- storage[i].b = int(val->value.b[i]);
+ storage[i].b = val->value.b[i] ? boolean_true : 0;
break;
- default:
+ case GLSL_TYPE_ARRAY:
+ case GLSL_TYPE_STRUCT:
+ case GLSL_TYPE_IMAGE:
+ case GLSL_TYPE_ATOMIC_UINT:
+ case GLSL_TYPE_INTERFACE:
+ case GLSL_TYPE_VOID:
+ case GLSL_TYPE_SUBROUTINE:
+ case GLSL_TYPE_ERROR:
/* All other types should have already been filtered by other
* paths in the caller.
*/
}
}
+/**
+ * Initialize an opaque uniform from the value of an explicit binding
+ * qualifier specified in the shader. Atomic counters are different because
+ * they have no storage and should be handled elsewhere.
+ */
+void
+set_opaque_binding(void *mem_ctx, gl_shader_program *prog,
+ const glsl_type *type, const char *name, int *binding)
+{
+
+ if (type->is_array() && type->fields.array->is_array()) {
+ const glsl_type *const element_type = type->fields.array;
+
+ for (unsigned int i = 0; i < type->length; i++) {
+ const char *element_name = ralloc_asprintf(mem_ctx, "%s[%d]", name, i);
+
+ set_opaque_binding(mem_ctx, prog, element_type,
+ element_name, binding);
+ }
+ } else {
+ struct gl_uniform_storage *const storage =
+ get_storage(prog->UniformStorage, prog->NumUniformStorage, name);
+
+ if (storage == NULL) {
+ assert(storage != NULL);
+ return;
+ }
+
+ const unsigned elements = MAX2(storage->array_elements, 1);
+
+ /* Section 4.4.4 (Opaque-Uniform Layout Qualifiers) of the GLSL 4.20 spec
+ * says:
+ *
+ * "If the binding identifier is used with an array, the first element
+ * of the array takes the specified unit and each subsequent element
+ * takes the next consecutive unit."
+ */
+ for (unsigned int i = 0; i < elements; i++) {
+ storage->storage[i].i = (*binding)++;
+ }
+
+ for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
+ gl_shader *shader = prog->_LinkedShaders[sh];
+
+ if (shader) {
+ if (storage->type->base_type == GLSL_TYPE_SAMPLER &&
+ storage->opaque[sh].active) {
+ for (unsigned i = 0; i < elements; i++) {
+ const unsigned index = storage->opaque[sh].index + i;
+ shader->SamplerUnits[index] = storage->storage[i].i;
+ }
+
+ } else if (storage->type->base_type == GLSL_TYPE_IMAGE &&
+ storage->opaque[sh].active) {
+ for (unsigned i = 0; i < elements; i++) {
+ const unsigned index = storage->opaque[sh].index + i;
+ shader->ImageUnits[index] = storage->storage[i].i;
+ }
+ }
+ }
+ }
+
+ storage->initialized = true;
+ }
+}
+
+void
+set_block_binding(gl_shader_program *prog, const char *block_name, int binding)
+{
+ const unsigned block_index = get_uniform_block_index(prog, block_name);
+
+ if (block_index == GL_INVALID_INDEX) {
+ assert(block_index != GL_INVALID_INDEX);
+ return;
+ }
+
+ /* This is a field of a UBO. val is the binding index. */
+ for (int i = 0; i < MESA_SHADER_STAGES; i++) {
+ int stage_index = prog->InterfaceBlockStageIndex[i][block_index];
+
+ if (stage_index != -1) {
+ struct gl_shader *sh = prog->_LinkedShaders[i];
+ sh->BufferInterfaceBlocks[stage_index].Binding = binding;
+ }
+ }
+}
+
void
set_uniform_initializer(void *mem_ctx, gl_shader_program *prog,
const char *name, const glsl_type *type,
- ir_constant *val)
+ ir_constant *val, unsigned int boolean_true)
{
+ const glsl_type *t_without_array = type->without_array();
if (type->is_record()) {
ir_constant *field_constant;
const char *field_name = ralloc_asprintf(mem_ctx, "%s.%s", name,
type->fields.structure[i].name);
set_uniform_initializer(mem_ctx, prog, field_name,
- field_type, field_constant);
+ field_type, field_constant, boolean_true);
field_constant = (ir_constant *)field_constant->next;
}
return;
- } else if (type->is_array() && type->fields.array->is_record()) {
+ } else if (t_without_array->is_record() ||
+ (type->is_array() && type->fields.array->is_array())) {
const glsl_type *const element_type = type->fields.array;
for (unsigned int i = 0; i < type->length; i++) {
const char *element_name = ralloc_asprintf(mem_ctx, "%s[%d]", name, i);
set_uniform_initializer(mem_ctx, prog, element_name,
- element_type, val->array_elements[i]);
+ element_type, val->array_elements[i],
+ boolean_true);
}
return;
}
struct gl_uniform_storage *const storage =
get_storage(prog->UniformStorage,
- prog->NumUserUniformStorage,
+ prog->NumUniformStorage,
name);
if (storage == NULL) {
assert(storage != NULL);
val->array_elements[0]->type->base_type;
const unsigned int elements = val->array_elements[0]->type->components();
unsigned int idx = 0;
+ unsigned dmul = (base_type == GLSL_TYPE_DOUBLE) ? 2 : 1;
assert(val->type->length >= storage->array_elements);
for (unsigned int i = 0; i < storage->array_elements; i++) {
copy_constant_to_storage(& storage->storage[idx],
val->array_elements[i],
base_type,
- elements);
+ elements,
+ boolean_true);
- idx += elements;
+ idx += elements * dmul;
}
} else {
copy_constant_to_storage(storage->storage,
val,
val->type->base_type,
- val->type->components());
+ val->type->components(),
+ boolean_true);
+
+ if (storage->type->is_sampler()) {
+ for (int sh = 0; sh < MESA_SHADER_STAGES; sh++) {
+ gl_shader *shader = prog->_LinkedShaders[sh];
+
+ if (shader && storage->opaque[sh].active) {
+ unsigned index = storage->opaque[sh].index;
+
+ shader->SamplerUnits[index] = storage->storage[0].i;
+ }
+ }
+ }
}
storage->initialized = true;
}
void
-link_set_uniform_initializers(struct gl_shader_program *prog)
+link_set_uniform_initializers(struct gl_shader_program *prog,
+ unsigned int boolean_true)
{
void *mem_ctx = NULL;
- for (unsigned int i = 0; i < MESA_SHADER_TYPES; i++) {
+ for (unsigned int i = 0; i < MESA_SHADER_STAGES; i++) {
struct gl_shader *shader = prog->_LinkedShaders[i];
if (shader == NULL)
continue;
- foreach_list(node, shader->ir) {
- ir_variable *const var = ((ir_instruction *) node)->as_variable();
+ foreach_in_list(ir_instruction, node, shader->ir) {
+ ir_variable *const var = node->as_variable();
- if (!var || var->mode != ir_var_uniform || !var->constant_value)
+ if (!var || (var->data.mode != ir_var_uniform &&
+ var->data.mode != ir_var_shader_storage))
continue;
if (!mem_ctx)
mem_ctx = ralloc_context(NULL);
- linker::set_uniform_initializer(mem_ctx, prog, var->name,
- var->type, var->constant_value);
+ if (var->data.explicit_binding) {
+ const glsl_type *const type = var->type;
+
+ if (type->without_array()->is_sampler() ||
+ type->without_array()->is_image()) {
+ int binding = var->data.binding;
+ linker::set_opaque_binding(mem_ctx, prog, var->type,
+ var->name, &binding);
+ } else if (var->is_in_buffer_block()) {
+ const glsl_type *const iface_type = var->get_interface_type();
+
+ /* If the variable is an array and it is an interface instance,
+ * we need to set the binding for each array element. Just
+ * checking that the variable is an array is not sufficient.
+ * The variable could be an array element of a uniform block
+ * that lacks an instance name. For example:
+ *
+ * uniform U {
+ * float f[4];
+ * };
+ *
+ * In this case "f" would pass is_in_buffer_block (above) and
+ * type->is_array(), but it will fail is_interface_instance().
+ */
+ if (var->is_interface_instance() && var->type->is_array()) {
+ for (unsigned i = 0; i < var->type->length; i++) {
+ const char *name =
+ ralloc_asprintf(mem_ctx, "%s[%u]", iface_type->name, i);
+
+ /* Section 4.4.3 (Uniform Block Layout Qualifiers) of the
+ * GLSL 4.20 spec says:
+ *
+ * "If the binding identifier is used with a uniform
+ * block instanced as an array then the first element
+ * of the array takes the specified block binding and
+ * each subsequent element takes the next consecutive
+ * uniform block binding point."
+ */
+ linker::set_block_binding(prog, name,
+ var->data.binding + i);
+ }
+ } else {
+ linker::set_block_binding(prog, iface_type->name,
+ var->data.binding);
+ }
+ } else if (type->contains_atomic()) {
+ /* we don't actually need to do anything. */
+ } else {
+ assert(!"Explicit binding not on a sampler, UBO or atomic.");
+ }
+ } else if (var->constant_initializer) {
+ linker::set_uniform_initializer(mem_ctx, prog, var->name,
+ var->type, var->constant_initializer,
+ boolean_true);
+ }
}
}
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