* DEALINGS IN THE SOFTWARE.
*/
+#include <cstdio>
#include <stdlib.h>
#include "glsl_symbol_table.h"
#include "glsl_parser_extras.h"
#include "glsl_types.h"
#include "builtin_types.h"
+#include "hash_table.h"
+hash_table *glsl_type::array_types = NULL;
+
static void
add_types_to_symbol_table(glsl_symbol_table *symtab,
const struct glsl_type *types,
- unsigned num_types)
+ unsigned num_types, bool warn)
{
- unsigned i;
+ (void) warn;
- for (i = 0; i < num_types; i++) {
+ for (unsigned i = 0; i < num_types; i++) {
symtab->add_type(types[i].name, & types[i]);
}
}
generate_110_types(glsl_symbol_table *symtab)
{
add_types_to_symbol_table(symtab, builtin_core_types,
- Elements(builtin_core_types));
+ Elements(builtin_core_types),
+ false);
add_types_to_symbol_table(symtab, builtin_structure_types,
- Elements(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));
- add_types_to_symbol_table(symtab, & void_type, 1);
+ Elements(builtin_110_deprecated_structure_types),
+ false);
+ add_types_to_symbol_table(symtab, & void_type, 1, false);
}
generate_110_types(symtab);
add_types_to_symbol_table(symtab, builtin_120_types,
- Elements(builtin_120_types));
+ Elements(builtin_120_types), false);
}
generate_120_types(symtab);
add_types_to_symbol_table(symtab, builtin_130_types,
- Elements(builtin_130_types));
+ Elements(builtin_130_types), false);
+}
+
+
+static void
+generate_ARB_texture_rectangle_types(glsl_symbol_table *symtab, bool warn)
+{
+ add_types_to_symbol_table(symtab, builtin_ARB_texture_rectangle_types,
+ Elements(builtin_ARB_texture_rectangle_types),
+ warn);
+}
+
+
+static void
+generate_EXT_texture_array_types(glsl_symbol_table *symtab, bool warn)
+{
+ add_types_to_symbol_table(symtab, builtin_EXT_texture_array_types,
+ Elements(builtin_EXT_texture_array_types),
+ warn);
}
/* error */
break;
}
+
+ 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);
+ }
}
-const struct glsl_type *
-_mesa_glsl_get_vector_type(unsigned base_type, unsigned vector_length)
+const glsl_type *glsl_type::get_base_type() const
{
switch (base_type) {
case GLSL_TYPE_UINT:
- switch (vector_length) {
- case 1:
- case 2:
- case 3:
- case 4:
- return glsl_uint_type + (vector_length - 1);
- default:
- return glsl_error_type;
- }
+ return uint_type;
case GLSL_TYPE_INT:
- switch (vector_length) {
- case 1:
- case 2:
- case 3:
- case 4:
- return glsl_int_type + (vector_length - 1);
- default:
- return glsl_error_type;
- }
+ return int_type;
case GLSL_TYPE_FLOAT:
- switch (vector_length) {
- case 1:
- case 2:
- case 3:
- case 4:
- return glsl_float_type + (vector_length - 1);
- default:
- return glsl_error_type;
- }
+ return float_type;
case GLSL_TYPE_BOOL:
- switch (vector_length) {
- case 1:
- case 2:
- case 3:
- case 4:
- return glsl_bool_type + (vector_length - 1);
- default:
- return glsl_error_type;
+ return bool_type;
+ default:
+ return error_type;
+ }
+}
+
+
+ir_function *
+glsl_type::generate_constructor(glsl_symbol_table *symtab) const
+{
+ /* Generate the function name and add it to the symbol table.
+ */
+ ir_function *const f = new ir_function(name);
+
+ bool added = symtab->add_function(name, f);
+ assert(added);
+
+ ir_function_signature *const sig = new 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 ir_variable(fields.array, param_name)
+ : new 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 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 ir_dereference_array(retval, new ir_constant(i))
+ : (ir_dereference *) new ir_dereference_record(retval, fields.structure[i].name);
+
+ ir_dereference *const rhs = new ir_dereference_variable(declarations[i]);
+ ir_instruction *const assign = new ir_assignment(lhs, rhs, NULL);
+
+ sig->body.push_tail(assign);
+ }
+
+ free(declarations);
+
+ ir_dereference *const retref = new ir_dereference_variable(retval);
+ ir_instruction *const inst = new 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(const glsl_type *type, unsigned parameter_count,
+ ir_variable **declarations)
+{
+ /* 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 ir_function_signature(type);
+
+ for (unsigned i = 0; i < parameter_count; i++) {
+ ir_variable *var = new ir_variable(parameter_type, names[i]);
+
+ var->mode = ir_var_in;
+ signature->parameters.push_tail(var);
+
+ declarations[i] = var;
+ }
+
+ ir_variable *retval = new 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(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 ir_dereference_variable(declarations[16]);
+ ir_dereference *const rhs = new ir_dereference_variable(declarations[0]);
+
+ ir_swizzle *lhs = new ir_swizzle(lhs_ref, 0, 0, 0, 0, 1);
+
+ inst = new ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(inst);
+
+ ir_dereference *const retref = new ir_dereference_variable(declarations[16]);
+
+ ir_swizzle *retval = new ir_swizzle(retref, 0, 0, 0, 0,
+ declarations[16]->type->vector_elements);
+
+ inst = new 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(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 ir_dereference_variable(declarations[16]);
+ ir_dereference *const rhs = new ir_dereference_variable(declarations[i]);
+
+ ir_swizzle *lhs = new ir_swizzle(lhs_ref, i, 0, 0, 0, 1);
+
+ inst = new ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(inst);
+ }
+
+ ir_dereference *retval = new ir_dereference_variable(declarations[16]);
+
+ inst = new 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(exec_list *instructions,
+ ir_variable **declarations)
+{
+ 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;
+ */
+ 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 ir_variable(column_type, "v");
+
+ instructions->push_tail(column);
+
+ ir_dereference *const lhs_ref = new ir_dereference_variable(column);
+ ir_dereference *const rhs = new ir_dereference_variable(declarations[0]);
+
+ ir_swizzle *lhs = new ir_swizzle(lhs_ref, 0, 0, 0, 0, 1);
+
+ inst = new ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(inst);
+
+ ir_constant *const zero = new ir_constant(0.0f);
+
+ for (unsigned i = 1; i < column_type->vector_elements; i++) {
+ ir_dereference *const lhs_ref = new ir_dereference_variable(column);
+
+ ir_swizzle *lhs = new ir_swizzle(lhs_ref, i, 0, 0, 0, 1);
+
+ inst = new 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 ir_dereference_variable(column);
+
+ /* This will be .xyyy when i=0, .yxyy when i=1, etc.
+ */
+ ir_swizzle *rhs = new 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 ir_constant(int(i));
+ ir_dereference *const lhs =
+ new ir_dereference_array(declarations[16], idx);
+
+ inst = new ir_assignment(lhs, rhs, NULL);
+ instructions->push_tail(inst);
+ }
+
+ ir_dereference *const retval = new ir_dereference_variable(declarations[16]);
+ inst = new ir_return(retval);
+ instructions->push_tail(inst);
+}
+
+
+/**
+ * Generate the body of a vector constructor that takes multiple scalars
+ */
+static void
+generate_mat_body_from_N_scalars(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.
+ */
+ 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 ir_constant(int(i));
+ ir_dereference *const row_access =
+ new ir_dereference_array(declarations[16], row_index);
+
+ ir_swizzle *component_access = new ir_swizzle(row_access,
+ j, 0, 0, 0, 1);
+
+ const unsigned param = (i * row_type->vector_elements) + j;
+ ir_dereference *const rhs =
+ new ir_dereference_variable(declarations[param]);
+
+ inst = new ir_assignment(component_access, rhs, NULL);
+ instructions->push_tail(inst);
}
+ }
+
+ ir_dereference *retval = new ir_dereference_variable(declarations[16]);
+
+ inst = new ir_return(retval);
+ instructions->push_tail(inst);
+}
+
+
+/**
+ * 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)
+{
+ 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 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(&types[i], 1, declarations);
+ f->add_signature(sig);
+
+ if (types[i].is_vector()) {
+ generate_vec_body_from_scalar(&sig->body, declarations);
+
+ ir_function_signature *const vec_sig =
+ generate_constructor_intro(&types[i], types[i].vector_elements,
+ declarations);
+ f->add_signature(vec_sig);
+
+ generate_vec_body_from_N_scalars(&vec_sig->body, declarations);
+ } else {
+ assert(types[i].is_matrix());
+
+ generate_mat_body_from_scalar(&sig->body, declarations);
+
+ ir_function_signature *const mat_sig =
+ generate_constructor_intro(&types[i],
+ (types[i].vector_elements
+ * types[i].matrix_columns),
+ declarations);
+ f->add_signature(mat_sig);
+
+ generate_mat_body_from_N_scalars(&mat_sig->body, declarations);
+ }
+ }
+}
+
+
+void
+generate_110_constructors(glsl_symbol_table *symtab, exec_list *instructions)
+{
+ generate_constructor(symtab, builtin_core_types,
+ Elements(builtin_core_types), instructions);
+}
+
+
+void
+generate_120_constructors(glsl_symbol_table *symtab, exec_list *instructions)
+{
+ generate_110_constructors(symtab, instructions);
+
+ generate_constructor(symtab, builtin_120_types,
+ Elements(builtin_120_types), instructions);
+}
+
+
+void
+generate_130_constructors(glsl_symbol_table *symtab, exec_list *instructions)
+{
+ generate_120_constructors(symtab, instructions);
+
+ generate_constructor(symtab, builtin_130_types,
+ Elements(builtin_130_types), instructions);
+}
+
+
+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:
- return glsl_error_type;
+ /* error */
+ break;
}
}
-const glsl_type *glsl_type::get_base_type() const
+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),
+ vector_elements(0), matrix_columns(0),
+ name(NULL), length(length)
{
- switch (base_type) {
+ 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 *) malloc(name_length);
+
+ if (length == 0)
+ snprintf(n, name_length, "%s[]", array->name);
+ else
+ snprintf(n, name_length, "%s[%u]", array->name, length);
+
+ this->name = n;
+}
+
+
+const glsl_type *
+glsl_type::get_instance(unsigned base_type, unsigned rows, unsigned columns)
+{
+ if (base_type == GLSL_TYPE_VOID)
+ return &void_type;
+
+ if ((rows < 1) || (rows > 4) || (columns < 1) || (columns > 4))
+ return error_type;
+
+ /* Treat GLSL vectors as Nx1 matrices.
+ */
+ if (columns == 1) {
+ switch (base_type) {
+ case GLSL_TYPE_UINT:
+ return uint_type + (rows - 1);
+ case GLSL_TYPE_INT:
+ return int_type + (rows - 1);
+ case GLSL_TYPE_FLOAT:
+ return float_type + (rows - 1);
+ case GLSL_TYPE_BOOL:
+ return bool_type + (rows - 1);
+ default:
+ return error_type;
+ }
+ } else {
+ if ((base_type != GLSL_TYPE_FLOAT) || (rows == 1))
+ return error_type;
+
+ /* GLSL matrix types are named mat{COLUMNS}x{ROWS}. Only the following
+ * combinations are valid:
+ *
+ * 1 2 3 4
+ * 1
+ * 2 x x x
+ * 3 x x x
+ * 4 x x x
+ */
+#define IDX(c,r) (((c-1)*3) + (r-1))
+
+ switch (IDX(columns, rows)) {
+ case IDX(2,2): return mat2_type;
+ case IDX(2,3): return mat2x3_type;
+ case IDX(2,4): return mat2x4_type;
+ case IDX(3,2): return mat3x2_type;
+ case IDX(3,3): return mat3_type;
+ case IDX(3,4): return mat3x4_type;
+ case IDX(4,2): return mat4x2_type;
+ case IDX(4,3): return mat4x3_type;
+ case IDX(4,4): return mat4_type;
+ default: return error_type;
+ }
+ }
+
+ assert(!"Should not get here.");
+ return error_type;
+}
+
+
+int
+glsl_type::array_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;
+}
+
+
+unsigned
+glsl_type::array_key_hash(const void *a)
+{
+ const glsl_type *const key = (glsl_type *) a;
+
+ const struct {
+ const glsl_type *t;
+ unsigned l;
+ char nul;
+ } hash_key = {
+ key->fields.array,
+ key->length,
+ '\0'
+ };
+
+ return hash_table_string_hash(& hash_key);
+}
+
+
+const glsl_type *
+glsl_type::get_array_instance(const glsl_type *base, unsigned array_size)
+{
+ const glsl_type key(base, array_size);
+
+ if (array_types == NULL) {
+ array_types = hash_table_ctor(64, array_key_hash, array_key_compare);
+ }
+
+ 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, t);
+ }
+
+ assert(t->base_type == GLSL_TYPE_ARRAY);
+ assert(t->length == array_size);
+ assert(t->fields.array == base);
+
+ return t;
+}
+
+
+const glsl_type *
+glsl_type::field_type(const char *name) const
+{
+ if (this->base_type != GLSL_TYPE_STRUCT)
+ return error_type;
+
+ for (unsigned i = 0; i < this->length; i++) {
+ if (strcmp(name, this->fields.structure[i].name) == 0)
+ return this->fields.structure[i].type;
+ }
+
+ return error_type;
+}
+
+
+int
+glsl_type::field_index(const char *name) const
+{
+ if (this->base_type != GLSL_TYPE_STRUCT)
+ return -1;
+
+ for (unsigned i = 0; i < this->length; i++) {
+ if (strcmp(name, this->fields.structure[i].name) == 0)
+ return i;
+ }
+
+ return -1;
+}
+
+
+unsigned
+glsl_type::component_slots() const
+{
+ switch (this->base_type) {
case GLSL_TYPE_UINT:
- return glsl_uint_type;
case GLSL_TYPE_INT:
- return glsl_int_type;
case GLSL_TYPE_FLOAT:
- return glsl_float_type;
case GLSL_TYPE_BOOL:
- return glsl_bool_type;
+ return this->components();
+
+ case GLSL_TYPE_STRUCT: {
+ unsigned size = 0;
+
+ for (unsigned i = 0; i < this->length; i++)
+ size += this->fields.structure[i].type->component_slots();
+
+ return size;
+ }
+
+ case GLSL_TYPE_ARRAY:
+ return this->length * this->fields.array->component_slots();
+
default:
- return glsl_error_type;
+ return 0;
}
}
projects / mesa.git / blobdiff