process_qualifier_constant(struct _mesa_glsl_parse_state *state,
YYLTYPE *loc,
const char *qual_indentifier,
- int qual_value,
+ ast_expression *const_expression,
unsigned *value)
{
- if (qual_value < 0) {
+ exec_list dummy_instructions;
+
+ if (const_expression == NULL) {
+ *value = 0;
+ return true;
+ }
+
+ ir_rvalue *const ir = const_expression->hir(&dummy_instructions, state);
+
+ ir_constant *const const_int = ir->constant_expression_value();
+ if (const_int == NULL || !const_int->type->is_integer()) {
+ _mesa_glsl_error(loc, state, "%s must be an integral constant "
+ "expression", qual_indentifier);
+ return false;
+ }
+
+ if (const_int->value.i[0] < 0) {
_mesa_glsl_error(loc, state, "%s layout qualifier is invalid (%d < 0)",
- qual_indentifier, qual_value);
+ qual_indentifier, const_int->value.u[0]);
return false;
}
- *value = (unsigned) qual_value;
+ /* If the location is const (and we've verified that
+ * it is) then no instructions should have been emitted
+ * when we converted it to HIR. If they were emitted,
+ * then either the location isn't const after all, or
+ * we are emitting unnecessary instructions.
+ */
+ assert(dummy_instructions.is_empty());
+
+ *value = const_int->value.u[0];
return true;
}
static bool
-validate_binding_qualifier(struct _mesa_glsl_parse_state *state,
- YYLTYPE *loc,
- const glsl_type *type,
- const ast_type_qualifier *qual)
+validate_stream_qualifier(YYLTYPE *loc, struct _mesa_glsl_parse_state *state,
+ unsigned stream)
+{
+ if (stream >= state->ctx->Const.MaxVertexStreams) {
+ _mesa_glsl_error(loc, state,
+ "invalid stream specified %d is larger than "
+ "MAX_VERTEX_STREAMS - 1 (%d).",
+ stream, state->ctx->Const.MaxVertexStreams - 1);
+ return false;
+ }
+
+ return true;
+}
+
+static void
+apply_explicit_binding(struct _mesa_glsl_parse_state *state,
+ YYLTYPE *loc,
+ ir_variable *var,
+ const glsl_type *type,
+ const ast_type_qualifier *qual)
{
if (!qual->flags.q.uniform && !qual->flags.q.buffer) {
_mesa_glsl_error(loc, state,
"the \"binding\" qualifier only applies to uniforms and "
"shader storage buffer objects");
- return false;
+ return;
}
- if (qual->binding < 0) {
- _mesa_glsl_error(loc, state, "binding values must be >= 0");
- return false;
+ unsigned qual_binding;
+ if (!process_qualifier_constant(state, loc, "binding", qual->binding,
+ &qual_binding)) {
+ return;
}
const struct gl_context *const ctx = state->ctx;
unsigned elements = type->is_array() ? type->arrays_of_arrays_size() : 1;
- unsigned max_index = qual->binding + elements - 1;
+ unsigned max_index = qual_binding + elements - 1;
const glsl_type *base_type = type->without_array();
if (base_type->is_interface()) {
*/
if (qual->flags.q.uniform &&
max_index >= ctx->Const.MaxUniformBufferBindings) {
- _mesa_glsl_error(loc, state, "layout(binding = %d) for %d UBOs exceeds "
+ _mesa_glsl_error(loc, state, "layout(binding = %u) for %d UBOs exceeds "
"the maximum number of UBO binding points (%d)",
- qual->binding, elements,
+ qual_binding, elements,
ctx->Const.MaxUniformBufferBindings);
- return false;
+ return;
}
/* SSBOs. From page 67 of the GLSL 4.30 specification:
*/
if (qual->flags.q.buffer &&
max_index >= ctx->Const.MaxShaderStorageBufferBindings) {
- _mesa_glsl_error(loc, state, "layout(binding = %d) for %d SSBOs exceeds "
+ _mesa_glsl_error(loc, state, "layout(binding = %u) for %d SSBOs exceeds "
"the maximum number of SSBO binding points (%d)",
- qual->binding, elements,
+ qual_binding, elements,
ctx->Const.MaxShaderStorageBufferBindings);
- return false;
+ return;
}
} else if (base_type->is_sampler()) {
/* Samplers. From page 63 of the GLSL 4.20 specification:
if (max_index >= limit) {
_mesa_glsl_error(loc, state, "layout(binding = %d) for %d samplers "
"exceeds the maximum number of texture image units "
- "(%d)", qual->binding, elements, limit);
+ "(%u)", qual_binding, elements, limit);
- return false;
+ return;
}
} else if (base_type->contains_atomic()) {
assert(ctx->Const.MaxAtomicBufferBindings <= MAX_COMBINED_ATOMIC_BUFFERS);
- if (unsigned(qual->binding) >= ctx->Const.MaxAtomicBufferBindings) {
+ if (qual_binding >= ctx->Const.MaxAtomicBufferBindings) {
_mesa_glsl_error(loc, state, "layout(binding = %d) exceeds the "
" maximum number of atomic counter buffer bindings"
- "(%d)", qual->binding,
+ "(%u)", qual_binding,
ctx->Const.MaxAtomicBufferBindings);
- return false;
+ return;
}
} else if (state->is_version(420, 310) && base_type->is_image()) {
assert(ctx->Const.MaxImageUnits <= MAX_IMAGE_UNITS);
_mesa_glsl_error(loc, state, "Image binding %d exceeds the "
" maximum number of image units (%d)", max_index,
ctx->Const.MaxImageUnits);
- return false;
+ return;
}
} else {
_mesa_glsl_error(loc, state,
"the \"binding\" qualifier only applies to uniform "
"blocks, opaque variables, or arrays thereof");
- return false;
+ return;
}
- return true;
+ var->data.explicit_binding = true;
+ var->data.binding = qual_binding;
+
+ return;
}
break;
}
+ /* Check if index was set for the uniform instead of the function */
+ if (qual->flags.q.explicit_index && qual->flags.q.subroutine) {
+ _mesa_glsl_error(loc, state, "an index qualifier can only be "
+ "used with subroutine functions");
+ return;
+ }
+
unsigned qual_index;
if (qual->flags.q.explicit_index &&
process_qualifier_constant(state, loc, "index", qual->index,
if (qual->flags.q.explicit_location) {
apply_explicit_location(qual, var, state, loc);
} else if (qual->flags.q.explicit_index) {
- _mesa_glsl_error(loc, state, "explicit index requires explicit location");
+ if (!qual->flags.q.subroutine_def)
+ _mesa_glsl_error(loc, state,
+ "explicit index requires explicit location");
}
- if (qual->flags.q.explicit_binding &&
- validate_binding_qualifier(state, loc, var->type, qual)) {
- var->data.explicit_binding = true;
- var->data.binding = qual->binding;
+ if (qual->flags.q.explicit_binding) {
+ apply_explicit_binding(state, loc, var, var->type, qual);
}
if (state->stage == MESA_SHADER_GEOMETRY &&
qual->flags.q.out && qual->flags.q.stream) {
unsigned qual_stream;
if (process_qualifier_constant(state, loc, "stream", qual->stream,
- &qual_stream)) {
+ &qual_stream) &&
+ validate_stream_qualifier(loc, state, qual_stream)) {
var->data.stream = qual_stream;
}
}
unsigned num_vertices = 0;
if (state->tcs_output_vertices_specified) {
- num_vertices = state->out_qualifier->vertices;
+ if (!state->out_qualifier->vertices->
+ process_qualifier_constant(state, "vertices",
+ &num_vertices, false)) {
+ return;
+ }
+
+ if (num_vertices > state->Const.MaxPatchVertices) {
+ _mesa_glsl_error(&loc, state, "vertices (%d) exceeds "
+ "GL_MAX_PATCH_VERTICES", num_vertices);
+ return;
+ }
}
if (!var->type->is_array() && !var->data.patch) {
*/
if (decl_type && decl_type->contains_atomic()) {
if (type->qualifier.flags.q.explicit_binding &&
- type->qualifier.flags.q.explicit_offset)
- state->atomic_counter_offsets[type->qualifier.binding] =
- type->qualifier.offset;
+ type->qualifier.flags.q.explicit_offset) {
+ unsigned qual_binding;
+ unsigned qual_offset;
+ if (process_qualifier_constant(state, &loc, "binding",
+ type->qualifier.binding,
+ &qual_binding)
+ && process_qualifier_constant(state, &loc, "offset",
+ type->qualifier.offset,
+ &qual_offset)) {
+ state->atomic_counter_offsets[qual_binding] = qual_offset;
+ }
+ }
}
if (this->declarations.is_empty()) {
/* From page 56 (page 62 of the PDF) of the GLSL 1.30 spec:
* "No qualifier is allowed on the return type of a function."
*/
- if (this->return_type->has_qualifiers()) {
+ if (this->return_type->has_qualifiers(state)) {
YYLTYPE loc = this->get_location();
_mesa_glsl_error(& loc, state,
"function `%s' return type has qualifiers", name);
if (this->return_type->qualifier.flags.q.subroutine_def) {
int idx;
+ if (this->return_type->qualifier.flags.q.explicit_index) {
+ unsigned qual_index;
+ if (process_qualifier_constant(state, &loc, "index",
+ this->return_type->qualifier.index,
+ &qual_index)) {
+ if (!state->has_explicit_uniform_location()) {
+ _mesa_glsl_error(&loc, state, "subroutine index requires "
+ "GL_ARB_explicit_uniform_location or "
+ "GLSL 4.30");
+ } else if (qual_index >= MAX_SUBROUTINES) {
+ _mesa_glsl_error(&loc, state,
+ "invalid subroutine index (%d) index must "
+ "be a number between 0 and "
+ "GL_MAX_SUBROUTINES - 1 (%d)", qual_index,
+ MAX_SUBROUTINES - 1);
+ } else {
+ f->subroutine_index = qual_index;
+ }
+ }
+ }
+
f->num_subroutine_types = this->return_type->qualifier.subroutine_list->declarations.length();
f->subroutine_types = ralloc_array(state, const struct glsl_type *,
f->num_subroutine_types);
unsigned qual_stream;
if (!process_qualifier_constant(state, &loc, "stream", this->layout.stream,
- &qual_stream)) {
+ &qual_stream) ||
+ !validate_stream_qualifier(&loc, state, qual_stream)) {
/* If the stream qualifier is invalid it doesn't make sense to continue
* on and try to compare stream layouts on member variables against it
* so just return early.
num_variables,
packing,
this->block_name);
- if (this->layout.flags.q.explicit_binding)
- validate_binding_qualifier(state, &loc, block_type, &this->layout);
if (!state->symbols->add_interface(block_type->name, block_type, var_mode)) {
YYLTYPE loc = this->get_location();
"not allowed");
}
- if (this->layout.flags.q.explicit_binding)
- validate_binding_qualifier(state, &loc, block_array_type,
- &this->layout);
-
var = new(state) ir_variable(block_array_type,
this->instance_name,
var_mode);
earlier->reinit_interface_type(block_type);
delete var;
} else {
- /* Propagate the "binding" keyword into this UBO's fields;
- * the UBO declaration itself doesn't get an ir_variable unless it
- * has an instance name. This is ugly.
- */
- var->data.explicit_binding = this->layout.flags.q.explicit_binding;
- var->data.binding = this->layout.binding;
+ if (this->layout.flags.q.explicit_binding) {
+ apply_explicit_binding(state, &loc, var, var->type,
+ &this->layout);
+ }
var->data.stream = qual_stream;
* The UBO declaration itself doesn't get an ir_variable unless it
* has an instance name. This is ugly.
*/
- var->data.explicit_binding = this->layout.flags.q.explicit_binding;
- var->data.binding = this->layout.binding;
+ if (this->layout.flags.q.explicit_binding) {
+ apply_explicit_binding(state, &loc, var,
+ var->get_interface_type(), &this->layout);
+ }
if (var->type->is_unsized_array()) {
if (var->is_in_shader_storage_block()) {
{
YYLTYPE loc = this->get_location();
- /* If any tessellation control output layout declaration preceded this
- * one, make sure it was consistent with this one.
- */
- if (state->tcs_output_vertices_specified &&
- state->out_qualifier->vertices != this->vertices) {
- _mesa_glsl_error(&loc, state,
- "tessellation control shader output layout does not "
- "match previous declaration");
- return NULL;
+ unsigned num_vertices;
+ if (!state->out_qualifier->vertices->
+ process_qualifier_constant(state, "vertices", &num_vertices,
+ false)) {
+ /* return here to stop cascading incorrect error messages */
+ return NULL;
}
/* If any shader outputs occurred before this declaration and specified an
* array size, make sure the size they specified is consistent with the
* primitive type.
*/
- unsigned num_vertices = this->vertices;
if (state->tcs_output_size != 0 && state->tcs_output_size != num_vertices) {
_mesa_glsl_error(&loc, state,
"this tessellation control shader output layout "
{
YYLTYPE loc = this->get_location();
- /* If any compute input layout declaration preceded this one, make sure it
- * was consistent with this one.
- */
- if (state->cs_input_local_size_specified) {
- for (int i = 0; i < 3; i++) {
- if (state->cs_input_local_size[i] != this->local_size[i]) {
- _mesa_glsl_error(&loc, state,
- "compute shader input layout does not match"
- " previous declaration");
- return NULL;
- }
- }
- }
-
/* From the ARB_compute_shader specification:
*
* If the local size of the shader in any dimension is greater
* report it at compile time as well.
*/
GLuint64 total_invocations = 1;
+ unsigned qual_local_size[3];
for (int i = 0; i < 3; i++) {
- if (this->local_size[i] > state->ctx->Const.MaxComputeWorkGroupSize[i]) {
+
+ char *local_size_str = ralloc_asprintf(NULL, "invalid local_size_%c",
+ 'x' + i);
+ /* Infer a local_size of 1 for unspecified dimensions */
+ if (this->local_size[i] == NULL) {
+ qual_local_size[i] = 1;
+ } else if (!this->local_size[i]->
+ process_qualifier_constant(state, local_size_str,
+ &qual_local_size[i], false)) {
+ ralloc_free(local_size_str);
+ return NULL;
+ }
+ ralloc_free(local_size_str);
+
+ if (qual_local_size[i] > state->ctx->Const.MaxComputeWorkGroupSize[i]) {
_mesa_glsl_error(&loc, state,
"local_size_%c exceeds MAX_COMPUTE_WORK_GROUP_SIZE"
" (%d)", 'x' + i,
state->ctx->Const.MaxComputeWorkGroupSize[i]);
break;
}
- total_invocations *= this->local_size[i];
+ total_invocations *= qual_local_size[i];
if (total_invocations >
state->ctx->Const.MaxComputeWorkGroupInvocations) {
_mesa_glsl_error(&loc, state,
}
}
+ /* If any compute input layout declaration preceded this one, make sure it
+ * was consistent with this one.
+ */
+ if (state->cs_input_local_size_specified) {
+ for (int i = 0; i < 3; i++) {
+ if (state->cs_input_local_size[i] != qual_local_size[i]) {
+ _mesa_glsl_error(&loc, state,
+ "compute shader input layout does not match"
+ " previous declaration");
+ return NULL;
+ }
+ }
+ }
+
state->cs_input_local_size_specified = true;
for (int i = 0; i < 3; i++)
- state->cs_input_local_size[i] = this->local_size[i];
+ state->cs_input_local_size[i] = qual_local_size[i];
/* We may now declare the built-in constant gl_WorkGroupSize (see
* builtin_variable_generator::generate_constants() for why we didn't
ir_constant_data data;
memset(&data, 0, sizeof(data));
for (int i = 0; i < 3; i++)
- data.u[i] = this->local_size[i];
+ data.u[i] = qual_local_size[i];
var->constant_value = new(var) ir_constant(glsl_type::uvec3_type, &data);
var->constant_initializer =
new(var) ir_constant(glsl_type::uvec3_type, &data);
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