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path: root/mesalib/src/glsl/linker.cpp
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Diffstat (limited to 'mesalib/src/glsl/linker.cpp')
-rw-r--r--mesalib/src/glsl/linker.cpp173
1 files changed, 91 insertions, 82 deletions
diff --git a/mesalib/src/glsl/linker.cpp b/mesalib/src/glsl/linker.cpp
index 1366077f7..a6133ea9c 100644
--- a/mesalib/src/glsl/linker.cpp
+++ b/mesalib/src/glsl/linker.cpp
@@ -114,8 +114,8 @@ public:
ir_rvalue *param_rval = (ir_rvalue *)iter.get();
ir_variable *sig_param = (ir_variable *)sig_iter.get();
- if (sig_param->mode == ir_var_function_out ||
- sig_param->mode == ir_var_function_inout) {
+ if (sig_param->data.mode == ir_var_function_out ||
+ sig_param->data.mode == ir_var_function_inout) {
ir_variable *var = param_rval->variable_referenced();
if (var && strcmp(name, var->name) == 0) {
found = true;
@@ -198,7 +198,7 @@ public:
virtual ir_visitor_status visit(ir_variable *var)
{
- if (!var->type->is_array() || var->mode != ir_var_shader_in)
+ if (!var->type->is_array() || var->data.mode != ir_var_shader_in)
return visit_continue;
unsigned size = var->type->length;
@@ -217,16 +217,16 @@ public:
* array using an index too large for its actual size assigned at link
* time.
*/
- if (var->max_array_access >= this->num_vertices) {
+ if (var->data.max_array_access >= this->num_vertices) {
linker_error(this->prog, "geometry shader accesses element %i of "
"%s, but only %i input vertices\n",
- var->max_array_access, var->name, this->num_vertices);
+ var->data.max_array_access, var->name, this->num_vertices);
return visit_continue;
}
var->type = glsl_type::get_array_instance(var->type->element_type(),
this->num_vertices);
- var->max_array_access = this->num_vertices - 1;
+ var->data.max_array_access = this->num_vertices - 1;
return visit_continue;
}
@@ -379,9 +379,9 @@ link_invalidate_variable_locations(exec_list *ir)
* shader inputs (via layout(location=...)), and generic fragment shader
* outputs (also via layout(location=...)).
*/
- if (!var->explicit_location) {
- var->location = -1;
- var->location_frac = 0;
+ if (!var->data.explicit_location) {
+ var->data.location = -1;
+ var->data.location_frac = 0;
}
/* ir_variable::is_unmatched_generic_inout is used by the linker while
@@ -396,10 +396,10 @@ link_invalidate_variable_locations(exec_list *ir)
* GL_ARB_separate_shader_objects is supported. When that extension is
* implemented, this function will need some modifications.
*/
- if (!var->explicit_location) {
- var->is_unmatched_generic_inout = 1;
+ if (!var->data.explicit_location) {
+ var->data.is_unmatched_generic_inout = 1;
} else {
- var->is_unmatched_generic_inout = 0;
+ var->data.is_unmatched_generic_inout = 0;
}
}
}
@@ -580,13 +580,13 @@ cross_validate_globals(struct gl_shader_program *prog,
if (var == NULL)
continue;
- if (uniforms_only && (var->mode != ir_var_uniform))
+ if (uniforms_only && (var->data.mode != ir_var_uniform))
continue;
/* Don't cross validate temporaries that are at global scope. These
* will eventually get pulled into the shaders 'main'.
*/
- if (var->mode == ir_var_temporary)
+ if (var->data.mode == ir_var_temporary)
continue;
/* If a global with this name has already been seen, verify that the
@@ -619,17 +619,17 @@ cross_validate_globals(struct gl_shader_program *prog,
}
}
- if (var->explicit_location) {
- if (existing->explicit_location
- && (var->location != existing->location)) {
+ if (var->data.explicit_location) {
+ if (existing->data.explicit_location
+ && (var->data.location != existing->data.location)) {
linker_error(prog, "explicit locations for %s "
"`%s' have differing values\n",
mode_string(var), var->name);
return;
}
- existing->location = var->location;
- existing->explicit_location = true;
+ existing->data.location = var->data.location;
+ existing->data.explicit_location = true;
}
/* From the GLSL 4.20 specification:
@@ -638,21 +638,21 @@ cross_validate_globals(struct gl_shader_program *prog,
* opaque-uniform name. However, it is not an error to specify a
* binding on some but not all declarations for the same name"
*/
- if (var->explicit_binding) {
- if (existing->explicit_binding &&
- var->binding != existing->binding) {
+ if (var->data.explicit_binding) {
+ if (existing->data.explicit_binding &&
+ var->data.binding != existing->data.binding) {
linker_error(prog, "explicit bindings for %s "
"`%s' have differing values\n",
mode_string(var), var->name);
return;
}
- existing->binding = var->binding;
- existing->explicit_binding = true;
+ existing->data.binding = var->data.binding;
+ existing->data.explicit_binding = true;
}
if (var->type->contains_atomic() &&
- var->atomic.offset != existing->atomic.offset) {
+ var->data.atomic.offset != existing->data.atomic.offset) {
linker_error(prog, "offset specifications for %s "
"`%s' have differing values\n",
mode_string(var), var->name);
@@ -671,9 +671,9 @@ cross_validate_globals(struct gl_shader_program *prog,
* of qualifiers."
*/
if (strcmp(var->name, "gl_FragDepth") == 0) {
- bool layout_declared = var->depth_layout != ir_depth_layout_none;
+ bool layout_declared = var->data.depth_layout != ir_depth_layout_none;
bool layout_differs =
- var->depth_layout != existing->depth_layout;
+ var->data.depth_layout != existing->data.depth_layout;
if (layout_declared && layout_differs) {
linker_error(prog,
@@ -682,7 +682,7 @@ cross_validate_globals(struct gl_shader_program *prog,
"the same set of qualifiers.");
}
- if (var->used && layout_differs) {
+ if (var->data.used && layout_differs) {
linker_error(prog,
"If gl_FragDepth is redeclared with a layout "
"qualifier in any fragment shader, it must be "
@@ -734,8 +734,8 @@ cross_validate_globals(struct gl_shader_program *prog,
}
}
- if (var->has_initializer) {
- if (existing->has_initializer
+ if (var->data.has_initializer) {
+ if (existing->data.has_initializer
&& (var->constant_initializer == NULL
|| existing->constant_initializer == NULL)) {
linker_error(prog,
@@ -750,21 +750,27 @@ cross_validate_globals(struct gl_shader_program *prog,
* otherwise) will propagate the existence to the variable
* stored in the symbol table.
*/
- existing->has_initializer = true;
+ existing->data.has_initializer = true;
}
- if (existing->invariant != var->invariant) {
+ if (existing->data.invariant != var->data.invariant) {
linker_error(prog, "declarations for %s `%s' have "
"mismatching invariant qualifiers\n",
mode_string(var), var->name);
return;
}
- if (existing->centroid != var->centroid) {
+ if (existing->data.centroid != var->data.centroid) {
linker_error(prog, "declarations for %s `%s' have "
"mismatching centroid qualifiers\n",
mode_string(var), var->name);
return;
}
+ if (existing->data.sample != var->data.sample) {
+ linker_error(prog, "declarations for %s `%s` have "
+ "mismatching sample qualifiers\n",
+ mode_string(var), var->name);
+ return;
+ }
} else
variables.add_variable(var);
}
@@ -884,7 +890,7 @@ remap_variables(ir_instruction *inst, struct gl_shader *target,
virtual ir_visitor_status visit(ir_dereference_variable *ir)
{
- if (ir->var->mode == ir_var_temporary) {
+ if (ir->var->data.mode == ir_var_temporary) {
ir_variable *var = (ir_variable *) hash_table_find(temps, ir->var);
assert(var != NULL);
@@ -958,13 +964,13 @@ move_non_declarations(exec_list *instructions, exec_node *last,
continue;
ir_variable *var = inst->as_variable();
- if ((var != NULL) && (var->mode != ir_var_temporary))
+ if ((var != NULL) && (var->data.mode != ir_var_temporary))
continue;
assert(inst->as_assignment()
|| inst->as_call()
|| inst->as_if() /* for initializers with the ?: operator */
- || ((var != NULL) && (var->mode == ir_var_temporary)));
+ || ((var != NULL) && (var->data.mode == ir_var_temporary)));
if (make_copies) {
inst = inst->clone(target, NULL);
@@ -1036,7 +1042,7 @@ public:
virtual ir_visitor_status visit(ir_variable *var)
{
- fixup_type(&var->type, var->max_array_access);
+ fixup_type(&var->type, var->data.max_array_access);
if (var->type->is_interface()) {
if (interface_contains_unsized_arrays(var->type)) {
const glsl_type *new_type =
@@ -1405,36 +1411,38 @@ link_intrastage_shaders(void *mem_ctx,
insertion_point, true, linked);
}
- /* Resolve initializers for global variables in the linked shader.
- */
- unsigned num_linking_shaders = num_shaders;
- for (unsigned i = 0; i < num_shaders; i++)
- num_linking_shaders += shader_list[i]->num_builtins_to_link;
+ /* Check if any shader needs built-in functions. */
+ bool need_builtins = false;
+ for (unsigned i = 0; i < num_shaders; i++) {
+ if (shader_list[i]->uses_builtin_functions) {
+ need_builtins = true;
+ break;
+ }
+ }
- gl_shader **linking_shaders =
- (gl_shader **) calloc(num_linking_shaders, sizeof(gl_shader *));
+ bool ok;
+ if (need_builtins) {
+ /* Make a temporary array one larger than shader_list, which will hold
+ * the built-in function shader as well.
+ */
+ gl_shader **linking_shaders = (gl_shader **)
+ calloc(num_shaders + 1, sizeof(gl_shader *));
+ memcpy(linking_shaders, shader_list, num_shaders * sizeof(gl_shader *));
+ linking_shaders[num_shaders] = _mesa_glsl_get_builtin_function_shader();
- memcpy(linking_shaders, shader_list,
- sizeof(linking_shaders[0]) * num_shaders);
+ ok = link_function_calls(prog, linked, linking_shaders, num_shaders + 1);
- unsigned idx = num_shaders;
- for (unsigned i = 0; i < num_shaders; i++) {
- memcpy(&linking_shaders[idx], shader_list[i]->builtins_to_link,
- sizeof(linking_shaders[0]) * shader_list[i]->num_builtins_to_link);
- idx += shader_list[i]->num_builtins_to_link;
+ free(linking_shaders);
+ } else {
+ ok = link_function_calls(prog, linked, shader_list, num_shaders);
}
- assert(idx == num_linking_shaders);
- if (!link_function_calls(prog, linked, linking_shaders,
- num_linking_shaders)) {
+ if (!ok) {
ctx->Driver.DeleteShader(ctx, linked);
- free(linking_shaders);
return NULL;
}
- free(linking_shaders);
-
/* At this point linked should contain all of the linked IR, so
* validate it to make sure nothing went wrong.
*/
@@ -1486,7 +1494,7 @@ update_array_sizes(struct gl_shader_program *prog)
foreach_list(node, prog->_LinkedShaders[i]->ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
- if ((var == NULL) || (var->mode != ir_var_uniform) ||
+ if ((var == NULL) || (var->data.mode != ir_var_uniform) ||
!var->type->is_array())
continue;
@@ -1501,7 +1509,7 @@ update_array_sizes(struct gl_shader_program *prog)
if (var->is_in_uniform_block() || var->type->contains_atomic())
continue;
- unsigned int size = var->max_array_access;
+ unsigned int size = var->data.max_array_access;
for (unsigned j = 0; j < MESA_SHADER_TYPES; j++) {
if (prog->_LinkedShaders[j] == NULL)
continue;
@@ -1512,8 +1520,8 @@ update_array_sizes(struct gl_shader_program *prog)
continue;
if (strcmp(var->name, other_var->name) == 0 &&
- other_var->max_array_access > size) {
- size = other_var->max_array_access;
+ other_var->data.max_array_access > size) {
+ size = other_var->data.max_array_access;
}
}
}
@@ -1652,16 +1660,17 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
foreach_list(node, sh->ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
- if ((var == NULL) || (var->mode != (unsigned) direction))
+ if ((var == NULL) || (var->data.mode != (unsigned) direction))
continue;
- if (var->explicit_location) {
- if ((var->location >= (int)(max_index + generic_base))
- || (var->location < 0)) {
+ if (var->data.explicit_location) {
+ if ((var->data.location >= (int)(max_index + generic_base))
+ || (var->data.location < 0)) {
linker_error(prog,
"invalid explicit location %d specified for `%s'\n",
- (var->location < 0)
- ? var->location : var->location - generic_base,
+ (var->data.location < 0)
+ ? var->data.location
+ : var->data.location - generic_base,
var->name);
return false;
}
@@ -1670,8 +1679,8 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
if (prog->AttributeBindings->get(binding, var->name)) {
assert(binding >= VERT_ATTRIB_GENERIC0);
- var->location = binding;
- var->is_unmatched_generic_inout = 0;
+ var->data.location = binding;
+ var->data.is_unmatched_generic_inout = 0;
}
} else if (target_index == MESA_SHADER_FRAGMENT) {
unsigned binding;
@@ -1679,11 +1688,11 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
if (prog->FragDataBindings->get(binding, var->name)) {
assert(binding >= FRAG_RESULT_DATA0);
- var->location = binding;
- var->is_unmatched_generic_inout = 0;
+ var->data.location = binding;
+ var->data.is_unmatched_generic_inout = 0;
if (prog->FragDataIndexBindings->get(index, var->name)) {
- var->index = index;
+ var->data.index = index;
}
}
}
@@ -1694,8 +1703,8 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
* add it to the list of variables that need linker-assigned locations.
*/
const unsigned slots = var->type->count_attribute_slots();
- if (var->location != -1) {
- if (var->location >= generic_base && var->index < 1) {
+ if (var->data.location != -1) {
+ if (var->data.location >= generic_base && var->data.index < 1) {
/* From page 61 of the OpenGL 4.0 spec:
*
* "LinkProgram will fail if the attribute bindings assigned
@@ -1729,7 +1738,7 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
/* Mask representing the contiguous slots that will be used by
* this attribute.
*/
- const unsigned attr = var->location - generic_base;
+ const unsigned attr = var->data.location - generic_base;
const unsigned use_mask = (1 << slots) - 1;
/* Generate a link error if the set of bits requested for this
@@ -1795,8 +1804,8 @@ assign_attribute_or_color_locations(gl_shader_program *prog,
return false;
}
- to_assign[i].var->location = generic_base + location;
- to_assign[i].var->is_unmatched_generic_inout = 0;
+ to_assign[i].var->data.location = generic_base + location;
+ to_assign[i].var->data.is_unmatched_generic_inout = 0;
used_locations |= (use_mask << location);
}
@@ -1813,15 +1822,15 @@ demote_shader_inputs_and_outputs(gl_shader *sh, enum ir_variable_mode mode)
foreach_list(node, sh->ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
- if ((var == NULL) || (var->mode != int(mode)))
+ if ((var == NULL) || (var->data.mode != int(mode)))
continue;
/* A shader 'in' or 'out' variable is only really an input or output if
* its value is used by other shader stages. This will cause the variable
* to have a location assigned.
*/
- if (var->is_unmatched_generic_inout) {
- var->mode = ir_var_auto;
+ if (var->data.is_unmatched_generic_inout) {
+ var->data.mode = ir_var_auto;
}
}
}
@@ -1849,12 +1858,12 @@ store_fragdepth_layout(struct gl_shader_program *prog)
foreach_list(node, ir) {
ir_variable *const var = ((ir_instruction *) node)->as_variable();
- if (var == NULL || var->mode != ir_var_shader_out) {
+ if (var == NULL || var->data.mode != ir_var_shader_out) {
continue;
}
if (strcmp(var->name, "gl_FragDepth") == 0) {
- switch (var->depth_layout) {
+ switch (var->data.depth_layout) {
case ir_depth_layout_none:
prog->FragDepthLayout = FRAG_DEPTH_LAYOUT_NONE;
return;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-17 22:06:59 +0000