* DEALINGS IN THE SOFTWARE.
*/
-#include <cstdio>
+#include <stdio.h>
#include <stdlib.h>
+#include "main/core.h" /* for Elements */
#include "glsl_symbol_table.h"
#include "glsl_parser_extras.h"
#include "glsl_types.h"
-#include "builtin_types.h"
-#include "hash_table.h"
-
+extern "C" {
+#include "program/hash_table.h"
+}
hash_table *glsl_type::array_types = NULL;
+hash_table *glsl_type::record_types = NULL;
+hash_table *glsl_type::interface_types = NULL;
+void *glsl_type::mem_ctx = NULL;
-static void
-add_types_to_symbol_table(glsl_symbol_table *symtab,
- const struct glsl_type *types,
- unsigned num_types, bool warn)
+void
+glsl_type::init_ralloc_type_ctx(void)
{
- (void) warn;
-
- for (unsigned i = 0; i < num_types; i++) {
- symtab->add_type(types[i].name, & types[i]);
+ if (glsl_type::mem_ctx == NULL) {
+ glsl_type::mem_ctx = ralloc_autofree_context();
+ assert(glsl_type::mem_ctx != NULL);
}
}
-
-static void
-generate_110_types(glsl_symbol_table *symtab)
+glsl_type::glsl_type(GLenum gl_type,
+ glsl_base_type base_type, unsigned vector_elements,
+ unsigned matrix_columns, const char *name) :
+ gl_type(gl_type),
+ base_type(base_type),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0), interface_packing(0),
+ vector_elements(vector_elements), matrix_columns(matrix_columns),
+ length(0)
{
- add_types_to_symbol_table(symtab, builtin_core_types,
- Elements(builtin_core_types),
- false);
- add_types_to_symbol_table(symtab, builtin_structure_types,
- Elements(builtin_structure_types),
- false);
- add_types_to_symbol_table(symtab, builtin_110_deprecated_structure_types,
- Elements(builtin_110_deprecated_structure_types),
- false);
- add_types_to_symbol_table(symtab, & void_type, 1, false);
+ init_ralloc_type_ctx();
+ assert(name != NULL);
+ this->name = ralloc_strdup(this->mem_ctx, name);
+ /* Neither dimension is zero or both dimensions are zero.
+ */
+ assert((vector_elements == 0) == (matrix_columns == 0));
+ memset(& fields, 0, sizeof(fields));
}
-
-static void
-generate_120_types(glsl_symbol_table *symtab)
+glsl_type::glsl_type(GLenum gl_type,
+ enum glsl_sampler_dim dim, bool shadow, bool array,
+ unsigned type, const char *name) :
+ gl_type(gl_type),
+ base_type(GLSL_TYPE_SAMPLER),
+ sampler_dimensionality(dim), sampler_shadow(shadow),
+ sampler_array(array), sampler_type(type), interface_packing(0),
+ vector_elements(0), matrix_columns(0),
+ length(0)
{
- generate_110_types(symtab);
-
- add_types_to_symbol_table(symtab, builtin_120_types,
- Elements(builtin_120_types), false);
+ init_ralloc_type_ctx();
+ assert(name != NULL);
+ this->name = ralloc_strdup(this->mem_ctx, name);
+ memset(& fields, 0, sizeof(fields));
}
-
-static void
-generate_130_types(glsl_symbol_table *symtab)
+glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ const char *name) :
+ gl_type(0),
+ base_type(GLSL_TYPE_STRUCT),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0), interface_packing(0),
+ vector_elements(0), matrix_columns(0),
+ length(num_fields)
{
- generate_120_types(symtab);
-
- add_types_to_symbol_table(symtab, builtin_130_types,
- Elements(builtin_130_types), false);
+ unsigned int i;
+
+ init_ralloc_type_ctx();
+ assert(name != NULL);
+ this->name = ralloc_strdup(this->mem_ctx, name);
+ this->fields.structure = ralloc_array(this->mem_ctx,
+ glsl_struct_field, length);
+ for (i = 0; i < length; i++) {
+ this->fields.structure[i].type = fields[i].type;
+ this->fields.structure[i].name = ralloc_strdup(this->fields.structure,
+ fields[i].name);
+ this->fields.structure[i].location = fields[i].location;
+ this->fields.structure[i].row_major = fields[i].row_major;
+ }
}
-
-static void
-generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab, bool warn)
+glsl_type::glsl_type(const glsl_struct_field *fields, unsigned num_fields,
+ enum glsl_interface_packing packing, const char *name) :
+ gl_type(0),
+ base_type(GLSL_TYPE_INTERFACE),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0), interface_packing((unsigned) packing),
+ vector_elements(0), matrix_columns(0),
+ length(num_fields)
{
- add_types_to_symbol_table(symtab, builtin_ARB_texture_rectangle_types,
- Elements(builtin_ARB_texture_rectangle_types),
- warn);
+ unsigned int i;
+
+ init_ralloc_type_ctx();
+ assert(name != NULL);
+ this->name = ralloc_strdup(this->mem_ctx, name);
+ this->fields.structure = ralloc_array(this->mem_ctx,
+ glsl_struct_field, length);
+ for (i = 0; i < length; i++) {
+ this->fields.structure[i].type = fields[i].type;
+ this->fields.structure[i].name = ralloc_strdup(this->fields.structure,
+ fields[i].name);
+ this->fields.structure[i].location = fields[i].location;
+ this->fields.structure[i].row_major = fields[i].row_major;
+ }
}
-static void
-generate_EXT_texture_array_types(glsl_symbol_table *symtab, bool warn)
+bool
+glsl_type::contains_sampler() const
{
- add_types_to_symbol_table(symtab, builtin_EXT_texture_array_types,
- Elements(builtin_EXT_texture_array_types),
- warn);
+ if (this->is_array()) {
+ return this->fields.array->contains_sampler();
+ } else if (this->is_record()) {
+ for (unsigned int i = 0; i < this->length; i++) {
+ if (this->fields.structure[i].type->contains_sampler())
+ return true;
+ }
+ return false;
+ } else {
+ return this->is_sampler();
+ }
}
-void
-_mesa_glsl_initialize_types(struct _mesa_glsl_parse_state *state)
+bool
+glsl_type::contains_integer() const
{
- switch (state->language_version) {
- case 110:
- generate_110_types(state->symbols);
- break;
- case 120:
- generate_120_types(state->symbols);
- break;
- case 130:
- generate_130_types(state->symbols);
- break;
- default:
- /* error */
- break;
+ if (this->is_array()) {
+ return this->fields.array->contains_integer();
+ } else if (this->is_record()) {
+ for (unsigned int i = 0; i < this->length; i++) {
+ if (this->fields.structure[i].type->contains_integer())
+ return true;
+ }
+ return false;
+ } else {
+ return this->is_integer();
}
+}
- if (state->ARB_texture_rectangle_enable) {
- generate_ARB_texture_rectangle_types(state->symbols,
- state->ARB_texture_rectangle_warn);
- }
- if (state->EXT_texture_array_enable && state->language_version < 130) {
- // These are already included in 130; don't create twice.
- generate_EXT_texture_array_types(state->symbols,
- state->EXT_texture_array_warn);
+gl_texture_index
+glsl_type::sampler_index() const
+{
+ const glsl_type *const t = (this->is_array()) ? this->fields.array : this;
+
+ assert(t->is_sampler());
+
+ switch (t->sampler_dimensionality) {
+ case GLSL_SAMPLER_DIM_1D:
+ return (t->sampler_array) ? TEXTURE_1D_ARRAY_INDEX : TEXTURE_1D_INDEX;
+ case GLSL_SAMPLER_DIM_2D:
+ return (t->sampler_array) ? TEXTURE_2D_ARRAY_INDEX : TEXTURE_2D_INDEX;
+ case GLSL_SAMPLER_DIM_3D:
+ return TEXTURE_3D_INDEX;
+ case GLSL_SAMPLER_DIM_CUBE:
+ return (t->sampler_array) ? TEXTURE_CUBE_ARRAY_INDEX : TEXTURE_CUBE_INDEX;
+ case GLSL_SAMPLER_DIM_RECT:
+ return TEXTURE_RECT_INDEX;
+ case GLSL_SAMPLER_DIM_BUF:
+ return TEXTURE_BUFFER_INDEX;
+ case GLSL_SAMPLER_DIM_EXTERNAL:
+ return TEXTURE_EXTERNAL_INDEX;
+ case GLSL_SAMPLER_DIM_MS:
+ return (t->sampler_array) ? TEXTURE_2D_MULTISAMPLE_ARRAY_INDEX : TEXTURE_2D_MULTISAMPLE_INDEX;
+ default:
+ assert(!"Should not get here.");
+ return TEXTURE_BUFFER_INDEX;
}
}
}
-ir_function *
-glsl_type::generate_constructor(glsl_symbol_table *symtab) const
+const glsl_type *glsl_type::get_scalar_type() const
{
- void *ctx = symtab;
-
- /* Generate the function name and add it to the symbol table.
- */
- ir_function *const f = new(ctx) ir_function(name);
-
- bool added = symtab->add_function(name, f);
- assert(added);
-
- ir_function_signature *const sig = new(ctx) ir_function_signature(this);
- f->add_signature(sig);
-
- ir_variable **declarations =
- (ir_variable **) malloc(sizeof(ir_variable *) * this->length);
- for (unsigned i = 0; i < length; i++) {
- char *const param_name = (char *) malloc(10);
-
- snprintf(param_name, 10, "p%08X", i);
-
- ir_variable *var = (this->base_type == GLSL_TYPE_ARRAY)
- ? new(ctx) ir_variable(fields.array, param_name)
- : new(ctx) ir_variable(fields.structure[i].type, param_name);
-
- var->mode = ir_var_in;
- declarations[i] = var;
- sig->parameters.push_tail(var);
- }
-
- /* Generate the body of the constructor. The body assigns each of the
- * parameters to a portion of a local variable called __retval that has
- * the same type as the constructor. After initializing __retval,
- * __retval is returned.
- */
- ir_variable *retval = new(ctx) ir_variable(this, "__retval");
- sig->body.push_tail(retval);
-
- for (unsigned i = 0; i < length; i++) {
- ir_dereference *const lhs = (this->base_type == GLSL_TYPE_ARRAY)
- ? (ir_dereference *) new(ctx) ir_dereference_array(retval,
- new(ctx) ir_constant(i))
- : (ir_dereference *) new(ctx) ir_dereference_record(retval,
- fields.structure[i].name);
+ const glsl_type *type = this;
- ir_dereference *const rhs = new(ctx) ir_dereference_variable(declarations[i]);
- ir_instruction *const assign = new(ctx) ir_assignment(lhs, rhs, NULL);
+ /* Handle arrays */
+ while (type->base_type == GLSL_TYPE_ARRAY)
+ type = type->fields.array;
- sig->body.push_tail(assign);
+ /* Handle vectors and matrices */
+ switch (type->base_type) {
+ case GLSL_TYPE_UINT:
+ return uint_type;
+ case GLSL_TYPE_INT:
+ return int_type;
+ case GLSL_TYPE_FLOAT:
+ return float_type;
+ case GLSL_TYPE_BOOL:
+ return bool_type;
+ default:
+ /* Handle everything else */
+ return type;
}
-
- free(declarations);
-
- ir_dereference *const retref = new(ctx) ir_dereference_variable(retval);
- ir_instruction *const inst = new(ctx) ir_return(retref);
- sig->body.push_tail(inst);
-
- return f;
}
-/**
- * Generate the function intro for a constructor
- *
- * \param type Data type to be constructed
- * \param count Number of parameters to this concrete constructor. Most
- * types have at least two constructors. One will take a
- * single scalar parameter and the other will take "N"
- * scalar parameters.
- * \param parameters Storage for the list of parameters. These are
- * typically stored in an \c ir_function_signature.
- * \param declarations Pointers to the variable declarations for the function
- * parameters. These are used later to avoid having to use
- * the symbol table.
- */
-static ir_function_signature *
-generate_constructor_intro(void *ctx,
- const glsl_type *type, unsigned parameter_count,
- ir_variable **declarations)
+void
+_mesa_glsl_release_types(void)
{
- /* Names of parameters used in vector and matrix constructors
- */
- static const char *const names[] = {
- "a", "b", "c", "d", "e", "f", "g", "h",
- "i", "j", "k", "l", "m", "n", "o", "p",
- };
-
- assert(parameter_count <= Elements(names));
-
- const glsl_type *const parameter_type = type->get_base_type();
-
- ir_function_signature *const signature = new(ctx) ir_function_signature(type);
-
- for (unsigned i = 0; i < parameter_count; i++) {
- ir_variable *var = new(ctx) ir_variable(parameter_type, names[i]);
-
- var->mode = ir_var_in;
- signature->parameters.push_tail(var);
-
- declarations[i] = var;
+ if (glsl_type::array_types != NULL) {
+ hash_table_dtor(glsl_type::array_types);
+ glsl_type::array_types = NULL;
}
- ir_variable *retval = new(ctx) ir_variable(type, "__retval");
- signature->body.push_tail(retval);
-
- declarations[16] = retval;
- return signature;
-}
-
-
-/**
- * Generate the body of a vector constructor that takes a single scalar
- */
-static void
-generate_vec_body_from_scalar(void *ctx,
- exec_list *instructions,
- ir_variable **declarations)
-{
- ir_instruction *inst;
-
- /* Generate a single assignment of the parameter to __retval.x and return
- * __retval.xxxx for however many vector components there are.
- */
- ir_dereference *const lhs_ref =
- new(ctx) ir_dereference_variable(declarations[16]);
- ir_dereference *const rhs = new(ctx) ir_dereference_variable(declarations[0]);
-
- ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, 0, 0, 0, 0, 1);
-
- inst = new(ctx) ir_assignment(lhs, rhs, NULL);
- instructions->push_tail(inst);
-
- ir_dereference *const retref = new(ctx) ir_dereference_variable(declarations[16]);
-
- ir_swizzle *retval = new(ctx) ir_swizzle(retref, 0, 0, 0, 0,
- declarations[16]->type->vector_elements);
-
- inst = new(ctx) ir_return(retval);
- instructions->push_tail(inst);
-}
-
-
-/**
- * Generate the body of a vector constructor that takes multiple scalars
- */
-static void
-generate_vec_body_from_N_scalars(void *ctx,
- exec_list *instructions,
- ir_variable **declarations)
-{
- ir_instruction *inst;
- const glsl_type *const vec_type = declarations[16]->type;
-
- /* Generate an assignment of each parameter to a single component of
- * __retval.x and return __retval.
- */
- for (unsigned i = 0; i < vec_type->vector_elements; i++) {
- ir_dereference *const lhs_ref =
- new(ctx) ir_dereference_variable(declarations[16]);
- ir_dereference *const rhs = new(ctx) ir_dereference_variable(declarations[i]);
-
- ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, i, 0, 0, 0, 1);
-
- inst = new(ctx) ir_assignment(lhs, rhs, NULL);
- instructions->push_tail(inst);
+ if (glsl_type::record_types != NULL) {
+ hash_table_dtor(glsl_type::record_types);
+ glsl_type::record_types = NULL;
}
-
- ir_dereference *retval = new(ctx) ir_dereference_variable(declarations[16]);
-
- inst = new(ctx) ir_return(retval);
- instructions->push_tail(inst);
}
-/**
- * Generate the body of a matrix constructor that takes a single scalar
- */
-static void
-generate_mat_body_from_scalar(void *ctx,
- exec_list *instructions,
- ir_variable **declarations)
+glsl_type::glsl_type(const glsl_type *array, unsigned length) :
+ base_type(GLSL_TYPE_ARRAY),
+ sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
+ sampler_type(0), interface_packing(0),
+ vector_elements(0), matrix_columns(0),
+ name(NULL), length(length)
{
- ir_instruction *inst;
-
- /* Generate an assignment of the parameter to the X component of a
- * temporary vector. Set the remaining fields of the vector to 0. The
- * size of the vector is equal to the number of rows of the matrix.
- *
- * Set each column of the matrix to a successive "rotation" of the
- * temporary vector. This fills the matrix with 0s, but writes the single
- * scalar along the matrix's diagonal.
- *
- * For a mat4x3, this is equivalent to:
- *
- * vec3 tmp;
- * mat4x3 __retval;
- * tmp.x = a;
- * tmp.y = 0.0;
- * tmp.z = 0.0;
- * __retval[0] = tmp.xyy;
- * __retval[1] = tmp.yxy;
- * __retval[2] = tmp.yyx;
- * __retval[3] = tmp.yyy;
+ this->fields.array = array;
+ /* Inherit the gl type of the base. The GL type is used for
+ * uniform/statevar handling in Mesa and the arrayness of the type
+ * is represented by the size rather than the type.
*/
- const glsl_type *const column_type = declarations[16]->type->column_type();
- const glsl_type *const row_type = declarations[16]->type->row_type();
-
- ir_variable *const column = new(ctx) ir_variable(column_type, "v");
-
- instructions->push_tail(column);
-
- ir_dereference *const lhs_ref = new(ctx) ir_dereference_variable(column);
- ir_dereference *const rhs = new(ctx) ir_dereference_variable(declarations[0]);
-
- ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, 0, 0, 0, 0, 1);
-
- inst = new(ctx) ir_assignment(lhs, rhs, NULL);
- instructions->push_tail(inst);
-
- for (unsigned i = 1; i < column_type->vector_elements; i++) {
- ir_dereference *const lhs_ref = new(ctx) ir_dereference_variable(column);
- ir_constant *const zero = new(ctx) ir_constant(0.0f);
-
- ir_swizzle *lhs = new(ctx) ir_swizzle(lhs_ref, i, 0, 0, 0, 1);
-
- inst = new(ctx) ir_assignment(lhs, zero, NULL);
- instructions->push_tail(inst);
- }
-
-
- for (unsigned i = 0; i < row_type->vector_elements; i++) {
- static const unsigned swiz[] = { 1, 1, 1, 0, 1, 1, 1 };
- ir_dereference *const rhs_ref = new(ctx) ir_dereference_variable(column);
-
- /* This will be .xyyy when i=0, .yxyy when i=1, etc.
- */
- ir_swizzle *rhs = new(ctx) ir_swizzle(rhs_ref, swiz[3 - i], swiz[4 - i],
- swiz[5 - i], swiz[6 - i],
- column_type->vector_elements);
-
- ir_constant *const idx = new(ctx) ir_constant(int(i));
- ir_dereference *const lhs =
- new(ctx) ir_dereference_array(declarations[16], idx);
-
- inst = new(ctx) ir_assignment(lhs, rhs, NULL);
- instructions->push_tail(inst);
- }
-
- ir_dereference *const retval = new(ctx) ir_dereference_variable(declarations[16]);
- inst = new(ctx) ir_return(retval);
- instructions->push_tail(inst);
-}
+ this->gl_type = array->gl_type;
-
-/**
- * Generate the body of a vector constructor that takes multiple scalars
- */
-static void
-generate_mat_body_from_N_scalars(void *ctx,
- exec_list *instructions,
- ir_variable **declarations)
-{
- ir_instruction *inst;
- const glsl_type *const row_type = declarations[16]->type->row_type();
- const glsl_type *const column_type = declarations[16]->type->column_type();
-
- /* Generate an assignment of each parameter to a single component of
- * of a particular column of __retval and return __retval.
+ /* Allow a maximum of 10 characters for the array size. This is enough
+ * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
+ * NUL.
*/
- for (unsigned i = 0; i < column_type->vector_elements; i++) {
- for (unsigned j = 0; j < row_type->vector_elements; j++) {
- ir_constant *row_index = new(ctx) ir_constant(int(i));
- ir_dereference *const row_access =
- new(ctx) ir_dereference_array(declarations[16], row_index);
-
- ir_swizzle *component_access = new(ctx) ir_swizzle(row_access,
- j, 0, 0, 0, 1);
-
- const unsigned param = (i * row_type->vector_elements) + j;
- ir_dereference *const rhs =
- new(ctx) ir_dereference_variable(declarations[param]);
-
- inst = new(ctx) ir_assignment(component_access, rhs, NULL);
- instructions->push_tail(inst);
- }
- }
+ const unsigned name_length = strlen(array->name) + 10 + 3;
+ char *const n = (char *) ralloc_size(this->mem_ctx, name_length);
- ir_dereference *retval = new(ctx) ir_dereference_variable(declarations[16]);
+ if (length == 0)
+ snprintf(n, name_length, "%s[]", array->name);
+ else
+ snprintf(n, name_length, "%s[%u]", array->name, length);
- inst = new(ctx) ir_return(retval);
- instructions->push_tail(inst);
+ this->name = n;
}
-/**
- * Generate the constructors for a set of GLSL types
- *
- * Constructor implementations are added to \c instructions, and the symbols
- * are added to \c symtab.
- */
-static void
-generate_constructor(glsl_symbol_table *symtab, const struct glsl_type *types,
- unsigned num_types, exec_list *instructions)
+const glsl_type *
+glsl_type::vec(unsigned components)
{
- void *ctx = symtab;
- ir_variable *declarations[17];
-
- for (unsigned i = 0; i < num_types; i++) {
- /* Only numeric and boolean vectors and matrices get constructors here.
- * Structures need to be handled elsewhere. It is expected that scalar
- * constructors are never actually called, so they are not generated.
- */
- if (!types[i].is_numeric() && !types[i].is_boolean())
- continue;
-
- if (types[i].is_scalar())
- continue;
-
- /* Generate the function block, add it to the symbol table, and emit it.
- */
- ir_function *const f = new(ctx) ir_function(types[i].name);
-
- bool added = symtab->add_function(types[i].name, f);
- assert(added);
-
- instructions->push_tail(f);
-
- /* Each type has several basic constructors. The total number of forms
- * depends on the derived type.
- *
- * Vectors: 1 scalar, N scalars
- * Matrices: 1 scalar, NxM scalars
- *
- * Several possible types of constructors are not included in this list.
- *
- * Scalar constructors are not included. The expectation is that the
- * IR generator won't actually generate these as constructor calls. The
- * expectation is that it will just generate the necessary type
- * conversion.
- *
- * Matrix contructors from matrices are also not included. The
- * expectation is that the IR generator will generate a call to the
- * appropriate from-scalars constructor.
- */
- ir_function_signature *const sig =
- generate_constructor_intro(ctx, &types[i], 1, declarations);
- f->add_signature(sig);
-
- if (types[i].is_vector()) {
- generate_vec_body_from_scalar(ctx, &sig->body, declarations);
-
- ir_function_signature *const vec_sig =
- generate_constructor_intro(ctx,
- &types[i], types[i].vector_elements,
- declarations);
- f->add_signature(vec_sig);
-
- generate_vec_body_from_N_scalars(ctx, &vec_sig->body, declarations);
- } else {
- assert(types[i].is_matrix());
-
- generate_mat_body_from_scalar(ctx, &sig->body, declarations);
-
- ir_function_signature *const mat_sig =
- generate_constructor_intro(ctx,
- &types[i],
- (types[i].vector_elements
- * types[i].matrix_columns),
- declarations);
- f->add_signature(mat_sig);
-
- generate_mat_body_from_N_scalars(ctx, &mat_sig->body, declarations);
- }
- }
-}
-
+ if (components == 0 || components > 4)
+ return error_type;
-void
-generate_110_constructors(glsl_symbol_table *symtab, exec_list *instructions)
-{
- generate_constructor(symtab, builtin_core_types,
- Elements(builtin_core_types), instructions);
+ static const glsl_type *const ts[] = {
+ float_type, vec2_type, vec3_type, vec4_type
+ };
+ return ts[components - 1];
}
-void
-generate_120_constructors(glsl_symbol_table *symtab, exec_list *instructions)
+const glsl_type *
+glsl_type::ivec(unsigned components)
{
- generate_110_constructors(symtab, instructions);
+ if (components == 0 || components > 4)
+ return error_type;
- generate_constructor(symtab, builtin_120_types,
- Elements(builtin_120_types), instructions);
+ static const glsl_type *const ts[] = {
+ int_type, ivec2_type, ivec3_type, ivec4_type
+ };
+ return ts[components - 1];
}
-void
-generate_130_constructors(glsl_symbol_table *symtab, exec_list *instructions)
+const glsl_type *
+glsl_type::uvec(unsigned components)
{
- generate_120_constructors(symtab, instructions);
-
- generate_constructor(symtab, builtin_130_types,
- Elements(builtin_130_types), instructions);
-}
-
+ if (components == 0 || components > 4)
+ return error_type;
-void
-_mesa_glsl_initialize_constructors(exec_list *instructions,
- struct _mesa_glsl_parse_state *state)
-{
- switch (state->language_version) {
- case 110:
- generate_110_constructors(state->symbols, instructions);
- break;
- case 120:
- generate_120_constructors(state->symbols, instructions);
- break;
- case 130:
- generate_130_constructors(state->symbols, instructions);
- break;
- default:
- /* error */
- break;
- }
+ static const glsl_type *const ts[] = {
+ uint_type, uvec2_type, uvec3_type, uvec4_type
+ };
+ return ts[components - 1];
}
-glsl_type::glsl_type(void *ctx, const glsl_type *array, unsigned length) :
- base_type(GLSL_TYPE_ARRAY),
- sampler_dimensionality(0), sampler_shadow(0), sampler_array(0),
- sampler_type(0),
- vector_elements(0), matrix_columns(0),
- name(NULL), length(length)
+const glsl_type *
+glsl_type::bvec(unsigned components)
{
- this->fields.array = array;
-
- /* Allow a maximum of 10 characters for the array size. This is enough
- * for 32-bits of ~0. The extra 3 are for the '[', ']', and terminating
- * NUL.
- */
- const unsigned name_length = strlen(array->name) + 10 + 3;
- char *const n = (char *) talloc_size(ctx, name_length);
-
- if (length == 0)
- snprintf(n, name_length, "%s[]", array->name);
- else
- snprintf(n, name_length, "%s[%u]", array->name, length);
+ if (components == 0 || components > 4)
+ return error_type;
- this->name = n;
+ static const glsl_type *const ts[] = {
+ bool_type, bvec2_type, bvec3_type, bvec4_type
+ };
+ return ts[components - 1];
}
glsl_type::get_instance(unsigned base_type, unsigned rows, unsigned columns)
{
if (base_type == GLSL_TYPE_VOID)
- return &void_type;
+ return void_type;
if ((rows < 1) || (rows > 4) || (columns < 1) || (columns > 4))
return error_type;
if (columns == 1) {
switch (base_type) {
case GLSL_TYPE_UINT:
- return uint_type + (rows - 1);
+ return uvec(rows);
case GLSL_TYPE_INT:
- return int_type + (rows - 1);
+ return ivec(rows);
case GLSL_TYPE_FLOAT:
- return float_type + (rows - 1);
+ return vec(rows);
case GLSL_TYPE_BOOL:
- return bool_type + (rows - 1);
+ return bvec(rows);
default:
return error_type;
}
}
+const glsl_type *
+glsl_type::get_array_instance(const glsl_type *base, unsigned array_size)
+{
+
+ if (array_types == NULL) {
+ array_types = hash_table_ctor(64, hash_table_string_hash,
+ hash_table_string_compare);
+ }
+
+ /* Generate a name using the base type pointer in the key. This is
+ * done because the name of the base type may not be unique across
+ * shaders. For example, two shaders may have different record types
+ * named 'foo'.
+ */
+ char key[128];
+ snprintf(key, sizeof(key), "%p[%u]", (void *) base, array_size);
+
+ const glsl_type *t = (glsl_type *) hash_table_find(array_types, key);
+ if (t == NULL) {
+ t = new glsl_type(base, array_size);
+
+ hash_table_insert(array_types, (void *) t, ralloc_strdup(mem_ctx, key));
+ }
+
+ assert(t->base_type == GLSL_TYPE_ARRAY);
+ assert(t->length == array_size);
+ assert(t->fields.array == base);
+
+ return t;
+}
+
+
int
-glsl_type::array_key_compare(const void *a, const void *b)
+glsl_type::record_key_compare(const void *a, const void *b)
{
const glsl_type *const key1 = (glsl_type *) a;
const glsl_type *const key2 = (glsl_type *) b;
/* Return zero is the types match (there is zero difference) or non-zero
* otherwise.
*/
- return ((key1->fields.array == key2->fields.array)
- && (key1->length == key2->length)) ? 0 : 1;
+ if (strcmp(key1->name, key2->name) != 0)
+ return 1;
+
+ if (key1->length != key2->length)
+ return 1;
+
+ if (key1->interface_packing != key2->interface_packing)
+ return 1;
+
+ for (unsigned i = 0; i < key1->length; i++) {
+ if (key1->fields.structure[i].type != key2->fields.structure[i].type)
+ return 1;
+ if (strcmp(key1->fields.structure[i].name,
+ key2->fields.structure[i].name) != 0)
+ return 1;
+ if (key1->fields.structure[i].row_major
+ != key2->fields.structure[i].row_major)
+ return 1;
+ if (key1->fields.structure[i].location
+ != key2->fields.structure[i].location)
+ return 1;
+ }
+
+ return 0;
}
unsigned
-glsl_type::array_key_hash(const void *a)
+glsl_type::record_key_hash(const void *a)
{
const glsl_type *const key = (glsl_type *) a;
+ char hash_key[128];
+ unsigned size = 0;
- const struct {
- const glsl_type *t;
- unsigned l;
- char nul;
- } hash_key = {
- key->fields.array,
- key->length,
- '\0'
- };
+ size = snprintf(hash_key, sizeof(hash_key), "%08x", key->length);
+
+ for (unsigned i = 0; i < key->length; i++) {
+ if (size >= sizeof(hash_key))
+ break;
+
+ size += snprintf(& hash_key[size], sizeof(hash_key) - size,
+ "%p", (void *) key->fields.structure[i].type);
+ }
return hash_table_string_hash(& hash_key);
}
const glsl_type *
-glsl_type::get_array_instance(void *ctx, const glsl_type *base,
- unsigned array_size)
+glsl_type::get_record_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ const char *name)
{
- const glsl_type key(ctx, base, array_size);
+ const glsl_type key(fields, num_fields, name);
- if (array_types == NULL) {
- array_types = hash_table_ctor(64, array_key_hash, array_key_compare);
+ if (record_types == NULL) {
+ record_types = hash_table_ctor(64, record_key_hash, record_key_compare);
}
- const glsl_type *t = (glsl_type *) hash_table_find(array_types, & key);
+ const glsl_type *t = (glsl_type *) hash_table_find(record_types, & key);
if (t == NULL) {
- t = new(ctx) glsl_type(ctx, base, array_size);
+ t = new glsl_type(fields, num_fields, name);
- hash_table_insert(array_types, (void *) t, t);
+ hash_table_insert(record_types, (void *) t, t);
}
- assert(t->base_type == GLSL_TYPE_ARRAY);
- assert(t->length == array_size);
- assert(t->fields.array == base);
+ assert(t->base_type == GLSL_TYPE_STRUCT);
+ assert(t->length == num_fields);
+ assert(strcmp(t->name, name) == 0);
+
+ return t;
+}
+
+
+const glsl_type *
+glsl_type::get_interface_instance(const glsl_struct_field *fields,
+ unsigned num_fields,
+ enum glsl_interface_packing packing,
+ const char *block_name)
+{
+ const glsl_type key(fields, num_fields, packing, block_name);
+
+ if (interface_types == NULL) {
+ interface_types = hash_table_ctor(64, record_key_hash, record_key_compare);
+ }
+
+ const glsl_type *t = (glsl_type *) hash_table_find(interface_types, & key);
+ if (t == NULL) {
+ t = new glsl_type(fields, num_fields, packing, block_name);
+
+ hash_table_insert(interface_types, (void *) t, t);
+ }
+
+ assert(t->base_type == GLSL_TYPE_INTERFACE);
+ assert(t->length == num_fields);
+ assert(strcmp(t->name, block_name) == 0);
return t;
}
const glsl_type *
glsl_type::field_type(const char *name) const
{
- if (this->base_type != GLSL_TYPE_STRUCT)
+ if (this->base_type != GLSL_TYPE_STRUCT
+ && this->base_type != GLSL_TYPE_INTERFACE)
return error_type;
for (unsigned i = 0; i < this->length; i++) {
int
glsl_type::field_index(const char *name) const
{
- if (this->base_type != GLSL_TYPE_STRUCT)
+ if (this->base_type != GLSL_TYPE_STRUCT
+ && this->base_type != GLSL_TYPE_INTERFACE)
return -1;
for (unsigned i = 0; i < this->length; i++) {
case GLSL_TYPE_BOOL:
return this->components();
- case GLSL_TYPE_STRUCT: {
+ case GLSL_TYPE_STRUCT:
+ case GLSL_TYPE_INTERFACE: {
unsigned size = 0;
for (unsigned i = 0; i < this->length; i++)
case GLSL_TYPE_ARRAY:
return this->length * this->fields.array->component_slots();
+ case GLSL_TYPE_SAMPLER:
+ case GLSL_TYPE_VOID:
+ case GLSL_TYPE_ERROR:
+ break;
+ }
+
+ return 0;
+}
+
+bool
+glsl_type::can_implicitly_convert_to(const glsl_type *desired) const
+{
+ if (this == desired)
+ return true;
+
+ /* There is no conversion among matrix types. */
+ if (this->matrix_columns > 1 || desired->matrix_columns > 1)
+ return false;
+
+ /* int and uint can be converted to float. */
+ return desired->is_float()
+ && this->is_integer()
+ && this->vector_elements == desired->vector_elements;
+}
+
+unsigned
+glsl_type::std140_base_alignment(bool row_major) const
+{
+ /* (1) If the member is a scalar consuming <N> basic machine units, the
+ * base alignment is <N>.
+ *
+ * (2) If the member is a two- or four-component vector with components
+ * consuming <N> basic machine units, the base alignment is 2<N> or
+ * 4<N>, respectively.
+ *
+ * (3) If the member is a three-component vector with components consuming
+ * <N> basic machine units, the base alignment is 4<N>.
+ */
+ if (this->is_scalar() || this->is_vector()) {
+ switch (this->vector_elements) {
+ case 1:
+ return 4;
+ case 2:
+ return 8;
+ case 3:
+ case 4:
+ return 16;
+ }
+ }
+
+ /* (4) If the member is an array of scalars or vectors, the base alignment
+ * and array stride are set to match the base alignment of a single
+ * array element, according to rules (1), (2), and (3), and rounded up
+ * to the base alignment of a vec4. The array may have padding at the
+ * end; the base offset of the member following the array is rounded up
+ * to the next multiple of the base alignment.
+ *
+ * (6) If the member is an array of <S> column-major matrices with <C>
+ * columns and <R> rows, the matrix is stored identically to a row of
+ * <S>*<C> column vectors with <R> components each, according to rule
+ * (4).
+ *
+ * (8) If the member is an array of <S> row-major matrices with <C> columns
+ * and <R> rows, the matrix is stored identically to a row of <S>*<R>
+ * row vectors with <C> components each, according to rule (4).
+ *
+ * (10) If the member is an array of <S> structures, the <S> elements of
+ * the array are laid out in order, according to rule (9).
+ */
+ if (this->is_array()) {
+ if (this->fields.array->is_scalar() ||
+ this->fields.array->is_vector() ||
+ this->fields.array->is_matrix()) {
+ return MAX2(this->fields.array->std140_base_alignment(row_major), 16);
+ } else {
+ assert(this->fields.array->is_record());
+ return this->fields.array->std140_base_alignment(row_major);
+ }
+ }
+
+ /* (5) If the member is a column-major matrix with <C> columns and
+ * <R> rows, the matrix is stored identically to an array of
+ * <C> column vectors with <R> components each, according to
+ * rule (4).
+ *
+ * (7) If the member is a row-major matrix with <C> columns and <R>
+ * rows, the matrix is stored identically to an array of <R>
+ * row vectors with <C> components each, according to rule (4).
+ */
+ if (this->is_matrix()) {
+ const struct glsl_type *vec_type, *array_type;
+ int c = this->matrix_columns;
+ int r = this->vector_elements;
+
+ if (row_major) {
+ vec_type = get_instance(GLSL_TYPE_FLOAT, c, 1);
+ array_type = glsl_type::get_array_instance(vec_type, r);
+ } else {
+ vec_type = get_instance(GLSL_TYPE_FLOAT, r, 1);
+ array_type = glsl_type::get_array_instance(vec_type, c);
+ }
+
+ return array_type->std140_base_alignment(false);
+ }
+
+ /* (9) If the member is a structure, the base alignment of the
+ * structure is <N>, where <N> is the largest base alignment
+ * value of any of its members, and rounded up to the base
+ * alignment of a vec4. The individual members of this
+ * sub-structure are then assigned offsets by applying this set
+ * of rules recursively, where the base offset of the first
+ * member of the sub-structure is equal to the aligned offset
+ * of the structure. The structure may have padding at the end;
+ * the base offset of the member following the sub-structure is
+ * rounded up to the next multiple of the base alignment of the
+ * structure.
+ */
+ if (this->is_record()) {
+ unsigned base_alignment = 16;
+ for (unsigned i = 0; i < this->length; i++) {
+ const struct glsl_type *field_type = this->fields.structure[i].type;
+ base_alignment = MAX2(base_alignment,
+ field_type->std140_base_alignment(row_major));
+ }
+ return base_alignment;
+ }
+
+ assert(!"not reached");
+ return -1;
+}
+
+unsigned
+glsl_type::std140_size(bool row_major) const
+{
+ /* (1) If the member is a scalar consuming <N> basic machine units, the
+ * base alignment is <N>.
+ *
+ * (2) If the member is a two- or four-component vector with components
+ * consuming <N> basic machine units, the base alignment is 2<N> or
+ * 4<N>, respectively.
+ *
+ * (3) If the member is a three-component vector with components consuming
+ * <N> basic machine units, the base alignment is 4<N>.
+ */
+ if (this->is_scalar() || this->is_vector()) {
+ return this->vector_elements * 4;
+ }
+
+ /* (5) If the member is a column-major matrix with <C> columns and
+ * <R> rows, the matrix is stored identically to an array of
+ * <C> column vectors with <R> components each, according to
+ * rule (4).
+ *
+ * (6) If the member is an array of <S> column-major matrices with <C>
+ * columns and <R> rows, the matrix is stored identically to a row of
+ * <S>*<C> column vectors with <R> components each, according to rule
+ * (4).
+ *
+ * (7) If the member is a row-major matrix with <C> columns and <R>
+ * rows, the matrix is stored identically to an array of <R>
+ * row vectors with <C> components each, according to rule (4).
+ *
+ * (8) If the member is an array of <S> row-major matrices with <C> columns
+ * and <R> rows, the matrix is stored identically to a row of <S>*<R>
+ * row vectors with <C> components each, according to rule (4).
+ */
+ if (this->is_matrix() || (this->is_array() &&
+ this->fields.array->is_matrix())) {
+ const struct glsl_type *element_type;
+ const struct glsl_type *vec_type;
+ unsigned int array_len;
+
+ if (this->is_array()) {
+ element_type = this->fields.array;
+ array_len = this->length;
+ } else {
+ element_type = this;
+ array_len = 1;
+ }
+
+ if (row_major) {
+ vec_type = get_instance(GLSL_TYPE_FLOAT,
+ element_type->matrix_columns, 1);
+ array_len *= element_type->vector_elements;
+ } else {
+ vec_type = get_instance(GLSL_TYPE_FLOAT,
+ element_type->vector_elements, 1);
+ array_len *= element_type->matrix_columns;
+ }
+ const glsl_type *array_type = glsl_type::get_array_instance(vec_type,
+ array_len);
+
+ return array_type->std140_size(false);
+ }
+
+ /* (4) If the member is an array of scalars or vectors, the base alignment
+ * and array stride are set to match the base alignment of a single
+ * array element, according to rules (1), (2), and (3), and rounded up
+ * to the base alignment of a vec4. The array may have padding at the
+ * end; the base offset of the member following the array is rounded up
+ * to the next multiple of the base alignment.
+ *
+ * (10) If the member is an array of <S> structures, the <S> elements of
+ * the array are laid out in order, according to rule (9).
+ */
+ if (this->is_array()) {
+ if (this->fields.array->is_record()) {
+ return this->length * this->fields.array->std140_size(row_major);
+ } else {
+ unsigned element_base_align =
+ this->fields.array->std140_base_alignment(row_major);
+ return this->length * MAX2(element_base_align, 16);
+ }
+ }
+
+ /* (9) If the member is a structure, the base alignment of the
+ * structure is <N>, where <N> is the largest base alignment
+ * value of any of its members, and rounded up to the base
+ * alignment of a vec4. The individual members of this
+ * sub-structure are then assigned offsets by applying this set
+ * of rules recursively, where the base offset of the first
+ * member of the sub-structure is equal to the aligned offset
+ * of the structure. The structure may have padding at the end;
+ * the base offset of the member following the sub-structure is
+ * rounded up to the next multiple of the base alignment of the
+ * structure.
+ */
+ if (this->is_record()) {
+ unsigned size = 0;
+ for (unsigned i = 0; i < this->length; i++) {
+ const struct glsl_type *field_type = this->fields.structure[i].type;
+ unsigned align = field_type->std140_base_alignment(row_major);
+ size = glsl_align(size, align);
+ size += field_type->std140_size(row_major);
+ }
+ size = glsl_align(size,
+ this->fields.structure[0].type->std140_base_alignment(row_major));
+ return size;
+ }
+
+ assert(!"not reached");
+ return -1;
+}
+
+
+unsigned
+glsl_type::count_attribute_slots() const
+{
+ /* From page 31 (page 37 of the PDF) of the GLSL 1.50 spec:
+ *
+ * "A scalar input counts the same amount against this limit as a vec4,
+ * so applications may want to consider packing groups of four
+ * unrelated float inputs together into a vector to better utilize the
+ * capabilities of the underlying hardware. A matrix input will use up
+ * multiple locations. The number of locations used will equal the
+ * number of columns in the matrix."
+ *
+ * The spec does not explicitly say how arrays are counted. However, it
+ * should be safe to assume the total number of slots consumed by an array
+ * is the number of entries in the array multiplied by the number of slots
+ * consumed by a single element of the array.
+ *
+ * The spec says nothing about how structs are counted, because vertex
+ * attributes are not allowed to be (or contain) structs. However, Mesa
+ * allows varying structs, the number of varying slots taken up by a
+ * varying struct is simply equal to the sum of the number of slots taken
+ * up by each element.
+ */
+ switch (this->base_type) {
+ case GLSL_TYPE_UINT:
+ case GLSL_TYPE_INT:
+ case GLSL_TYPE_FLOAT:
+ case GLSL_TYPE_BOOL:
+ return this->matrix_columns;
+
+ case GLSL_TYPE_STRUCT:
+ case GLSL_TYPE_INTERFACE: {
+ unsigned size = 0;
+
+ for (unsigned i = 0; i < this->length; i++)
+ size += this->fields.structure[i].type->count_attribute_slots();
+
+ return size;
+ }
+
+ case GLSL_TYPE_ARRAY:
+ return this->length * this->fields.array->count_attribute_slots();
+
+ case GLSL_TYPE_SAMPLER:
+ case GLSL_TYPE_VOID:
+ case GLSL_TYPE_ERROR:
+ break;
+ }
+
+ assert(!"Unexpected type in count_attribute_slots()");
+
+ return 0;
+}
+
+int
+glsl_type::sampler_coordinate_components() const
+{
+ assert(is_sampler());
+
+ int size;
+
+ switch (sampler_dimensionality) {
+ case GLSL_SAMPLER_DIM_1D:
+ case GLSL_SAMPLER_DIM_BUF:
+ size = 1;
+ break;
+ case GLSL_SAMPLER_DIM_2D:
+ case GLSL_SAMPLER_DIM_RECT:
+ case GLSL_SAMPLER_DIM_MS:
+ case GLSL_SAMPLER_DIM_EXTERNAL:
+ size = 2;
+ break;
+ case GLSL_SAMPLER_DIM_3D:
+ case GLSL_SAMPLER_DIM_CUBE:
+ size = 3;
+ break;
default:
- return 0;
+ assert(!"Should not get here.");
+ size = 1;
+ break;
}
+
+ /* Array textures need an additional component for the array index. */
+ if (sampler_array)
+ size += 1;
+
+ return size;
}
projects / mesa.git / blobdiff