*/
#include <math.h>
+#include "main/core.h" /* for MAX2, MIN2, CLAMP */
#include "ir.h"
#include "ir_visitor.h"
#include "glsl_types.h"
-/**
- * Visitor class for evaluating constant expressions
- */
-class ir_constant_visitor : public ir_visitor {
-public:
- ir_constant_visitor()
- : value(NULL)
- {
- /* empty */
- }
-
- virtual ~ir_constant_visitor()
- {
- /* empty */
- }
-
- /**
- * \name Visit methods
- *
- * As typical for the visitor pattern, there must be one \c visit method for
- * each concrete subclass of \c ir_instruction. Virtual base classes within
- * the hierarchy should not have \c visit methods.
- */
- /*@{*/
- virtual void visit(ir_variable *);
- virtual void visit(ir_function_signature *);
- virtual void visit(ir_function *);
- virtual void visit(ir_expression *);
- virtual void visit(ir_texture *);
- virtual void visit(ir_swizzle *);
- virtual void visit(ir_dereference_variable *);
- virtual void visit(ir_dereference_array *);
- virtual void visit(ir_dereference_record *);
- virtual void visit(ir_assignment *);
- virtual void visit(ir_constant *);
- virtual void visit(ir_call *);
- virtual void visit(ir_return *);
- virtual void visit(ir_discard *);
- virtual void visit(ir_if *);
- virtual void visit(ir_loop *);
- virtual void visit(ir_loop_jump *);
- /*@}*/
-
- /**
- * Value of the constant expression.
- *
- * \note
- * This field will be \c NULL if the expression is not constant valued.
- */
- /* FINIHSME: This cannot hold values for constant arrays or structures. */
- ir_constant *value;
-};
-
-
-ir_constant *
-ir_instruction::constant_expression_value()
+static float
+dot(ir_constant *op0, ir_constant *op1)
{
- ir_constant_visitor visitor;
-
- this->accept(& visitor);
- return visitor.value;
-}
+ assert(op0->type->is_float() && op1->type->is_float());
+ float result = 0;
+ for (unsigned c = 0; c < op0->type->components(); c++)
+ result += op0->value.f[c] * op1->value.f[c];
-void
-ir_constant_visitor::visit(ir_variable *ir)
-{
- (void) ir;
- value = NULL;
+ return result;
}
-
-void
-ir_constant_visitor::visit(ir_function_signature *ir)
-{
- (void) ir;
- value = NULL;
-}
-
-
-void
-ir_constant_visitor::visit(ir_function *ir)
+ir_constant *
+ir_expression::constant_expression_value()
{
- (void) ir;
- value = NULL;
-}
+ if (this->type->is_error())
+ return NULL;
-void
-ir_constant_visitor::visit(ir_expression *ir)
-{
- value = NULL;
ir_constant *op[2] = { NULL, NULL };
- unsigned int operand, c;
ir_constant_data data;
memset(&data, 0, sizeof(data));
- for (operand = 0; operand < ir->get_num_operands(); operand++) {
- op[operand] = ir->operands[operand]->constant_expression_value();
+ for (unsigned operand = 0; operand < this->get_num_operands(); operand++) {
+ op[operand] = this->operands[operand]->constant_expression_value();
if (!op[operand])
- return;
+ return NULL;
}
if (op[1] != NULL)
/* When iterating over a vector or matrix's components, we want to increase
* the loop counter. However, for scalars, we want to stay at 0.
*/
- unsigned c0_inc = op0_scalar ? 1 : 0;
- unsigned c1_inc = op1_scalar ? 1 : 0;
- unsigned components = op[op1_scalar ? 0 : 1]->type->components();
+ unsigned c0_inc = op0_scalar ? 0 : 1;
+ unsigned c1_inc = op1_scalar ? 0 : 1;
+ unsigned components;
+ if (op1_scalar || !op[1]) {
+ components = op[0]->type->components();
+ } else {
+ components = op[1]->type->components();
+ }
+
+ void *ctx = talloc_parent(this);
+
+ /* Handle array operations here, rather than below. */
+ if (op[0]->type->is_array()) {
+ assert(op[1] != NULL && op[1]->type->is_array());
+ switch (this->operation) {
+ case ir_binop_all_equal:
+ return new(ctx) ir_constant(op[0]->has_value(op[1]));
+ case ir_binop_any_nequal:
+ return new(ctx) ir_constant(!op[0]->has_value(op[1]));
+ default:
+ break;
+ }
+ return NULL;
+ }
+
+ switch (this->operation) {
+ case ir_unop_bit_not:
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ for (unsigned c = 0; c < components; c++)
+ data.i[c] = ~ op[0]->value.i[c];
+ break;
+ case GLSL_TYPE_UINT:
+ for (unsigned c = 0; c < components; c++)
+ data.u[c] = ~ op[0]->value.u[c];
+ break;
+ default:
+ assert(0);
+ }
+ break;
- switch (ir->operation) {
case ir_unop_logic_not:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++)
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
data.b[c] = !op[0]->value.b[c];
break;
case ir_unop_f2i:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.i[c] = op[0]->value.f[c];
}
break;
case ir_unop_i2f:
- assert(op[0]->type->base_type == GLSL_TYPE_UINT ||
- op[0]->type->base_type == GLSL_TYPE_INT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- if (op[0]->type->base_type == GLSL_TYPE_INT)
- data.f[c] = op[0]->value.i[c];
- else
- data.f[c] = op[0]->value.u[c];
+ assert(op[0]->type->base_type == GLSL_TYPE_INT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = op[0]->value.i[c];
+ }
+ break;
+ case ir_unop_u2f:
+ assert(op[0]->type->base_type == GLSL_TYPE_UINT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = op[0]->value.u[c];
}
break;
case ir_unop_b2f:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = op[0]->value.b[c] ? 1.0 : 0.0;
}
break;
case ir_unop_f2b:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.b[c] = bool(op[0]->value.f[c]);
}
break;
case ir_unop_b2i:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.u[c] = op[0]->value.b[c] ? 1 : 0;
}
break;
case ir_unop_i2b:
assert(op[0]->type->is_integer());
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.b[c] = bool(op[0]->value.u[c]);
}
break;
+ case ir_unop_any:
+ assert(op[0]->type->is_boolean());
+ data.b[0] = false;
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (op[0]->value.b[c])
+ data.b[0] = true;
+ }
+ break;
+
+ case ir_unop_trunc:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = truncf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_ceil:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = ceilf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_floor:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = floorf(op[0]->value.f[c]);
+ }
+ break;
+
case ir_unop_fract:
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->type->base_type) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = 0;
break;
}
break;
+ case ir_unop_sin:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = sinf(op[0]->value.f[c]);
+ }
+ break;
+
+ case ir_unop_cos:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = cosf(op[0]->value.f[c]);
+ }
+ break;
+
case ir_unop_neg:
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->type->base_type) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = -op[0]->value.u[c];
break;
break;
case ir_unop_abs:
- assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->type->base_type) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = op[0]->value.u[c];
break;
}
break;
+ case ir_unop_sign:
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.i[c] > 0;
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = (op[0]->value.i[c] > 0) - (op[0]->value.i[c] < 0);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = float((op[0]->value.f[c] > 0)-(op[0]->value.f[c] < 0));
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
case ir_unop_rcp:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->type->base_type) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (this->type->base_type) {
case GLSL_TYPE_UINT:
if (op[0]->value.u[c] != 0.0)
data.u[c] = 1 / op[0]->value.u[c];
case ir_unop_rsq:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = 1.0 / sqrtf(op[0]->value.f[c]);
}
break;
case ir_unop_sqrt:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = sqrtf(op[0]->value.f[c]);
}
break;
case ir_unop_exp:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = expf(op[0]->value.f[c]);
}
break;
+ case ir_unop_exp2:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = exp2f(op[0]->value.f[c]);
+ }
+ break;
+
case ir_unop_log:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = logf(op[0]->value.f[c]);
}
break;
+ case ir_unop_log2:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = log2f(op[0]->value.f[c]);
+ }
+ break;
+
case ir_unop_dFdx:
case ir_unop_dFdy:
assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
data.f[c] = 0.0;
}
break;
+ case ir_binop_pow:
+ assert(op[0]->type->base_type == GLSL_TYPE_FLOAT);
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ data.f[c] = powf(op[0]->value.f[c], op[1]->value.f[c]);
+ }
+ break;
+
+ case ir_binop_dot:
+ data.f[0] = dot(op[0], op[1]);
+ break;
+
+ case ir_binop_min:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = MIN2(op[0]->value.u[c0], op[1]->value.u[c1]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = MIN2(op[0]->value.i[c0], op[1]->value.i[c1]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = MIN2(op[0]->value.f[c0], op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+ case ir_binop_max:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = MAX2(op[0]->value.u[c0], op[1]->value.u[c1]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = MAX2(op[0]->value.i[c0], op[1]->value.i[c1]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = MAX2(op[0]->value.f[c0], op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_cross:
+ assert(op[0]->type == glsl_type::vec3_type);
+ assert(op[1]->type == glsl_type::vec3_type);
+ data.f[0] = (op[0]->value.f[1] * op[1]->value.f[2] -
+ op[1]->value.f[1] * op[0]->value.f[2]);
+ data.f[1] = (op[0]->value.f[2] * op[1]->value.f[0] -
+ op[1]->value.f[2] * op[0]->value.f[0]);
+ data.f[2] = (op[0]->value.f[0] * op[1]->value.f[1] -
+ op[1]->value.f[0] * op[0]->value.f[1]);
+ break;
+
case ir_binop_add:
assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
for (unsigned c = 0, c0 = 0, c1 = 0;
c < components;
c0 += c0_inc, c1 += c1_inc, c++) {
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = op[0]->value.u[c0] + op[1]->value.u[c1];
break;
c < components;
c0 += c0_inc, c1 += c1_inc, c++) {
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = op[0]->value.u[c0] - op[1]->value.u[c1];
break;
break;
case ir_binop_mul:
- if (ir->operands[0]->type == ir->operands[1]->type &&
- !ir->operands[0]->type->is_matrix()) {
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->operands[0]->type->base_type) {
+ /* Check for equal types, or unequal types involving scalars */
+ if ((op[0]->type == op[1]->type && !op[0]->type->is_matrix())
+ || op0_scalar || op1_scalar) {
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
- data.u[c] = op[0]->value.u[c] * op[1]->value.u[c];
+ data.u[c] = op[0]->value.u[c0] * op[1]->value.u[c1];
break;
case GLSL_TYPE_INT:
- data.i[c] = op[0]->value.i[c] * op[1]->value.i[c];
+ data.i[c] = op[0]->value.i[c0] * op[1]->value.i[c1];
break;
case GLSL_TYPE_FLOAT:
- data.f[c] = op[0]->value.f[c] * op[1]->value.f[c];
+ data.f[c] = op[0]->value.f[c0] * op[1]->value.f[c1];
break;
default:
assert(0);
}
}
- } else
- /* FINISHME: Support operations with non-equal types. */
- return;
+ } else {
+ assert(op[0]->type->is_matrix() || op[1]->type->is_matrix());
+
+ /* Multiply an N-by-M matrix with an M-by-P matrix. Since either
+ * matrix can be a GLSL vector, either N or P can be 1.
+ *
+ * For vec*mat, the vector is treated as a row vector. This
+ * means the vector is a 1-row x M-column matrix.
+ *
+ * For mat*vec, the vector is treated as a column vector. Since
+ * matrix_columns is 1 for vectors, this just works.
+ */
+ const unsigned n = op[0]->type->is_vector()
+ ? 1 : op[0]->type->vector_elements;
+ const unsigned m = op[1]->type->vector_elements;
+ const unsigned p = op[1]->type->matrix_columns;
+ for (unsigned j = 0; j < p; j++) {
+ for (unsigned i = 0; i < n; i++) {
+ for (unsigned k = 0; k < m; k++) {
+ data.f[i+n*j] += op[0]->value.f[i+n*k]*op[1]->value.f[k+m*j];
+ }
+ }
+ }
+ }
break;
case ir_binop_div:
c < components;
c0 += c0_inc, c1 += c1_inc, c++) {
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.u[c] = op[0]->value.u[c0] / op[1]->value.u[c1];
break;
}
break;
+ case ir_binop_mod:
+ assert(op[0]->type == op[1]->type || op0_scalar || op1_scalar);
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] % op[1]->value.u[c1];
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] % op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_FLOAT:
+ /* We don't use fmod because it rounds toward zero; GLSL specifies
+ * the use of floor.
+ */
+ data.f[c] = op[0]->value.f[c0] - op[1]->value.f[c1]
+ * floorf(op[0]->value.f[c0] / op[1]->value.f[c1]);
+ break;
+ default:
+ assert(0);
+ }
+ }
+
+ break;
+
case ir_binop_logic_and:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++)
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
data.b[c] = op[0]->value.b[c] && op[1]->value.b[c];
break;
case ir_binop_logic_xor:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++)
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
data.b[c] = op[0]->value.b[c] ^ op[1]->value.b[c];
break;
case ir_binop_logic_or:
assert(op[0]->type->base_type == GLSL_TYPE_BOOL);
- for (c = 0; c < ir->operands[0]->type->components(); c++)
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
data.b[c] = op[0]->value.b[c] || op[1]->value.b[c];
break;
case ir_binop_less:
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.b[0] = op[0]->value.u[0] < op[1]->value.u[0];
break;
}
break;
case ir_binop_greater:
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.b[0] = op[0]->value.u[0] > op[1]->value.u[0];
break;
}
break;
case ir_binop_lequal:
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.b[0] = op[0]->value.u[0] <= op[1]->value.u[0];
break;
}
break;
case ir_binop_gequal:
- switch (ir->operands[0]->type->base_type) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
data.b[0] = op[0]->value.u[0] >= op[1]->value.u[0];
break;
assert(0);
}
break;
-
case ir_binop_equal:
- data.b[0] = true;
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->operands[0]->type->base_type) {
+ assert(op[0]->type == op[1]->type);
+ for (unsigned c = 0; c < components; c++) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
- data.b[0] = data.b[0] && op[0]->value.u[c] == op[1]->value.u[c];
+ data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
break;
case GLSL_TYPE_INT:
- data.b[0] = data.b[0] && op[0]->value.i[c] == op[1]->value.i[c];
+ data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
break;
case GLSL_TYPE_FLOAT:
- data.b[0] = data.b[0] && op[0]->value.f[c] == op[1]->value.f[c];
- break;
- case GLSL_TYPE_BOOL:
- data.b[0] = data.b[0] && op[0]->value.b[c] == op[1]->value.b[c];
+ data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
break;
default:
assert(0);
}
break;
case ir_binop_nequal:
- data.b[0] = false;
- for (c = 0; c < ir->operands[0]->type->components(); c++) {
- switch (ir->operands[0]->type->base_type) {
+ assert(op[0]->type != op[1]->type);
+ for (unsigned c = 0; c < components; c++) {
+ switch (op[0]->type->base_type) {
case GLSL_TYPE_UINT:
- data.b[0] = data.b[0] || op[0]->value.u[c] != op[1]->value.u[c];
+ data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
break;
case GLSL_TYPE_INT:
- data.b[0] = data.b[0] || op[0]->value.i[c] != op[1]->value.i[c];
+ data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
break;
case GLSL_TYPE_FLOAT:
- data.b[0] = data.b[0] || op[0]->value.f[c] != op[1]->value.f[c];
- break;
- case GLSL_TYPE_BOOL:
- data.b[0] = data.b[0] || op[0]->value.b[c] != op[1]->value.b[c];
+ data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
break;
default:
assert(0);
}
}
break;
+ case ir_binop_all_equal:
+ data.b[0] = op[0]->has_value(op[1]);
+ break;
+ case ir_binop_any_nequal:
+ data.b[0] = !op[0]->has_value(op[1]);
+ break;
+
+ case ir_binop_lshift:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ if (op[0]->type->base_type == GLSL_TYPE_INT &&
+ op[1]->type->base_type == GLSL_TYPE_INT) {
+ data.i[c] = op[0]->value.i[c0] << op[1]->value.i[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_INT &&
+ op[1]->type->base_type == GLSL_TYPE_UINT) {
+ data.i[c] = op[0]->value.i[c0] << op[1]->value.u[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
+ op[1]->type->base_type == GLSL_TYPE_INT) {
+ data.u[c] = op[0]->value.u[c0] << op[1]->value.i[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
+ op[1]->type->base_type == GLSL_TYPE_UINT) {
+ data.u[c] = op[0]->value.u[c0] << op[1]->value.u[c1];
+ }
+ }
+ break;
+
+ case ir_binop_rshift:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ if (op[0]->type->base_type == GLSL_TYPE_INT &&
+ op[1]->type->base_type == GLSL_TYPE_INT) {
+ data.i[c] = op[0]->value.i[c0] >> op[1]->value.i[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_INT &&
+ op[1]->type->base_type == GLSL_TYPE_UINT) {
+ data.i[c] = op[0]->value.i[c0] >> op[1]->value.u[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
+ op[1]->type->base_type == GLSL_TYPE_INT) {
+ data.u[c] = op[0]->value.u[c0] >> op[1]->value.i[c1];
+
+ } else if (op[0]->type->base_type == GLSL_TYPE_UINT &&
+ op[1]->type->base_type == GLSL_TYPE_UINT) {
+ data.u[c] = op[0]->value.u[c0] >> op[1]->value.u[c1];
+ }
+ }
+ break;
+
+ case ir_binop_bit_and:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] & op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] & op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_bit_or:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] | op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] | op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
+
+ case ir_binop_bit_xor:
+ for (unsigned c = 0, c0 = 0, c1 = 0;
+ c < components;
+ c0 += c0_inc, c1 += c1_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_INT:
+ data.i[c] = op[0]->value.i[c0] ^ op[1]->value.i[c1];
+ break;
+ case GLSL_TYPE_UINT:
+ data.u[c] = op[0]->value.u[c0] ^ op[1]->value.u[c1];
+ break;
+ default:
+ assert(0);
+ }
+ }
+ break;
default:
/* FINISHME: Should handle all expression types. */
- return;
+ return NULL;
}
- void *ctx = talloc_parent(ir);
- this->value = new(ctx) ir_constant(ir->type, &data);
+ return new(ctx) ir_constant(this->type, &data);
}
-void
-ir_constant_visitor::visit(ir_texture *ir)
+ir_constant *
+ir_texture::constant_expression_value()
{
- // FINISHME: Do stuff with texture lookups
- (void) ir;
- value = NULL;
+ /* texture lookups aren't constant expressions */
+ return NULL;
}
-void
-ir_constant_visitor::visit(ir_swizzle *ir)
+ir_constant *
+ir_swizzle::constant_expression_value()
{
- ir_constant *v = ir->val->constant_expression_value();
-
- this->value = NULL;
+ ir_constant *v = this->val->constant_expression_value();
if (v != NULL) {
- ir_constant_data data;
+ ir_constant_data data = { { 0 } };
const unsigned swiz_idx[4] = {
- ir->mask.x, ir->mask.y, ir->mask.z, ir->mask.w
+ this->mask.x, this->mask.y, this->mask.z, this->mask.w
};
- for (unsigned i = 0; i < ir->mask.num_components; i++) {
+ for (unsigned i = 0; i < this->mask.num_components; i++) {
switch (v->type->base_type) {
case GLSL_TYPE_UINT:
case GLSL_TYPE_INT: data.u[i] = v->value.u[swiz_idx[i]]; break;
}
}
- void *ctx = talloc_parent(ir);
- this->value = new(ctx) ir_constant(ir->type, &data);
+ void *ctx = talloc_parent(this);
+ return new(ctx) ir_constant(this->type, &data);
}
+ return NULL;
}
-void
-ir_constant_visitor::visit(ir_dereference_variable *ir)
+ir_constant *
+ir_dereference_variable::constant_expression_value()
{
- value = NULL;
+ /* This may occur during compile and var->type is glsl_type::error_type */
+ if (!var)
+ return NULL;
+
+ /* The constant_value of a uniform variable is its initializer,
+ * not the lifetime constant value of the uniform.
+ */
+ if (var->mode == ir_var_uniform)
+ return NULL;
- ir_variable *var = ir->variable_referenced();
- if (var && var->constant_value)
- value = (ir_constant *)var->constant_value->clone(NULL);
+ if (!var->constant_value)
+ return NULL;
+
+ return var->constant_value->clone(talloc_parent(var), NULL);
}
-void
-ir_constant_visitor::visit(ir_dereference_array *ir)
+ir_constant *
+ir_dereference_array::constant_expression_value()
{
- void *ctx = talloc_parent(ir);
- ir_constant *array = ir->array->constant_expression_value();
- ir_constant *idx = ir->array_index->constant_expression_value();
-
- this->value = NULL;
+ ir_constant *array = this->array->constant_expression_value();
+ ir_constant *idx = this->array_index->constant_expression_value();
if ((array != NULL) && (idx != NULL)) {
+ void *ctx = talloc_parent(this);
if (array->type->is_matrix()) {
/* Array access of a matrix results in a vector.
*/
*/
const unsigned mat_idx = column * column_type->vector_elements;
- ir_constant_data data;
+ ir_constant_data data = { { 0 } };
switch (column_type->base_type) {
case GLSL_TYPE_UINT:
break;
}
- this->value = new(ctx) ir_constant(column_type, &data);
+ return new(ctx) ir_constant(column_type, &data);
} else if (array->type->is_vector()) {
const unsigned component = idx->value.u[0];
- this->value = new(ctx) ir_constant(array, component);
+ return new(ctx) ir_constant(array, component);
} else {
- /* FINISHME: Handle access of constant arrays. */
+ const unsigned index = idx->value.u[0];
+ return array->get_array_element(index)->clone(ctx, NULL);
}
}
+ return NULL;
}
-void
-ir_constant_visitor::visit(ir_dereference_record *ir)
+ir_constant *
+ir_dereference_record::constant_expression_value()
{
- ir_constant *v = ir->record->constant_expression_value();
+ ir_constant *v = this->record->constant_expression_value();
- this->value = (v != NULL) ? v->get_record_field(ir->field) : NULL;
+ return (v != NULL) ? v->get_record_field(this->field) : NULL;
}
-void
-ir_constant_visitor::visit(ir_assignment *ir)
+ir_constant *
+ir_assignment::constant_expression_value()
{
- (void) ir;
- value = NULL;
+ /* FINISHME: Handle CEs involving assignment (return RHS) */
+ return NULL;
}
-void
-ir_constant_visitor::visit(ir_constant *ir)
+ir_constant *
+ir_constant::constant_expression_value()
{
- value = ir;
+ return this;
}
-void
-ir_constant_visitor::visit(ir_call *ir)
+ir_constant *
+ir_call::constant_expression_value()
{
- (void) ir;
- value = NULL;
-}
+ if (this->type == glsl_type::error_type)
+ return NULL;
+ /* From the GLSL 1.20 spec, page 23:
+ * "Function calls to user-defined functions (non-built-in functions)
+ * cannot be used to form constant expressions."
+ */
+ if (!this->callee->is_builtin)
+ return NULL;
-void
-ir_constant_visitor::visit(ir_return *ir)
-{
- (void) ir;
- value = NULL;
-}
+ unsigned num_parameters = 0;
+ /* Check if all parameters are constant */
+ ir_constant *op[3];
+ foreach_list(n, &this->actual_parameters) {
+ ir_constant *constant = ((ir_rvalue *) n)->constant_expression_value();
+ if (constant == NULL)
+ return NULL;
-void
-ir_constant_visitor::visit(ir_discard *ir)
-{
- (void) ir;
- value = NULL;
-}
+ op[num_parameters] = constant;
+ assert(num_parameters < 3);
+ num_parameters++;
+ }
-void
-ir_constant_visitor::visit(ir_if *ir)
-{
- (void) ir;
- value = NULL;
-}
+ /* Individual cases below can either:
+ * - Assign "expr" a new ir_expression to evaluate (for basic opcodes)
+ * - Fill "data" with appopriate constant data
+ * - Return an ir_constant directly.
+ */
+ void *mem_ctx = talloc_parent(this);
+ ir_expression *expr = NULL;
+ ir_constant_data data;
+ memset(&data, 0, sizeof(data));
-void
-ir_constant_visitor::visit(ir_loop *ir)
-{
- (void) ir;
- value = NULL;
-}
+ const char *callee = this->callee_name();
+ if (strcmp(callee, "abs") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_abs, type, op[0], NULL);
+ } else if (strcmp(callee, "all") == 0) {
+ assert(op[0]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (!op[0]->value.b[c])
+ return new(mem_ctx) ir_constant(false);
+ }
+ return new(mem_ctx) ir_constant(true);
+ } else if (strcmp(callee, "any") == 0) {
+ assert(op[0]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ if (op[0]->value.b[c])
+ return new(mem_ctx) ir_constant(true);
+ }
+ return new(mem_ctx) ir_constant(false);
+ } else if (strcmp(callee, "acos") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = acosf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "asin") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = asinf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "atan") == 0) {
+ assert(op[0]->type->is_float());
+ if (num_parameters == 2) {
+ assert(op[1]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = atan2f(op[0]->value.f[c], op[1]->value.f[c]);
+ } else {
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = atanf(op[0]->value.f[c]);
+ }
+ } else if (strcmp(callee, "dFdx") == 0 || strcmp(callee, "dFdy") == 0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else if (strcmp(callee, "ceil") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_ceil, type, op[0], NULL);
+ } else if (strcmp(callee, "clamp") == 0) {
+ assert(num_parameters == 3);
+ unsigned c1_inc = op[1]->type->is_scalar() ? 0 : 1;
+ unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, c1 = 0, c2 = 0;
+ c < op[0]->type->components();
+ c1 += c1_inc, c2 += c2_inc, c++) {
+
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.u[c] = CLAMP(op[0]->value.u[c], op[1]->value.u[c1],
+ op[2]->value.u[c2]);
+ break;
+ case GLSL_TYPE_INT:
+ data.i[c] = CLAMP(op[0]->value.i[c], op[1]->value.i[c1],
+ op[2]->value.i[c2]);
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.f[c] = CLAMP(op[0]->value.f[c], op[1]->value.f[c1],
+ op[2]->value.f[c2]);
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "cos") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_cos, type, op[0], NULL);
+ } else if (strcmp(callee, "cosh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = coshf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "cross") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_cross, type, op[0], op[1]);
+ } else if (strcmp(callee, "degrees") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = 180.0/M_PI * op[0]->value.f[c];
+ } else if (strcmp(callee, "distance") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ float length_squared = 0.0;
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ float t = op[0]->value.f[c] - op[1]->value.f[c];
+ length_squared += t * t;
+ }
+ return new(mem_ctx) ir_constant(sqrtf(length_squared));
+ } else if (strcmp(callee, "dot") == 0) {
+ return new(mem_ctx) ir_constant(dot(op[0], op[1]));
+ } else if (strcmp(callee, "equal") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] == op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] == op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] == op[1]->value.f[c];
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[c] = op[0]->value.b[c] == op[1]->value.b[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "exp") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_exp, type, op[0], NULL);
+ } else if (strcmp(callee, "exp2") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_exp2, type, op[0], NULL);
+ } else if (strcmp(callee, "faceforward") == 0) {
+ if (dot(op[2], op[1]) < 0)
+ return op[0];
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = -op[0]->value.f[c];
+ } else if (strcmp(callee, "floor") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_floor, type, op[0], NULL);
+ } else if (strcmp(callee, "fract") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_fract, type, op[0], NULL);
+ } else if (strcmp(callee, "fwidth") == 0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else if (strcmp(callee, "greaterThan") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] > op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] > op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] > op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "greaterThanEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] >= op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] >= op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] >= op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "inversesqrt") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_rsq, type, op[0], NULL);
+ } else if (strcmp(callee, "length") == 0) {
+ return new(mem_ctx) ir_constant(sqrtf(dot(op[0], op[0])));
+ } else if (strcmp(callee, "lessThan") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] < op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] < op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] < op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "lessThanEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] <= op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] <= op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] <= op[1]->value.f[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "log") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_log, type, op[0], NULL);
+ } else if (strcmp(callee, "log2") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_log2, type, op[0], NULL);
+ } else if (strcmp(callee, "matrixCompMult") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] * op[1]->value.f[c];
+ } else if (strcmp(callee, "max") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_max, type, op[0], op[1]);
+ } else if (strcmp(callee, "min") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_min, type, op[0], op[1]);
+ } else if (strcmp(callee, "mix") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ if (op[2]->type->is_float()) {
+ unsigned c2_inc = op[2]->type->is_scalar() ? 0 : 1;
+ unsigned components = op[0]->type->components();
+ for (unsigned c = 0, c2 = 0; c < components; c2 += c2_inc, c++) {
+ data.f[c] = op[0]->value.f[c] * (1 - op[2]->value.f[c2]) +
+ op[1]->value.f[c] * op[2]->value.f[c2];
+ }
+ } else {
+ assert(op[2]->type->is_boolean());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[op[2]->value.b[c] ? 1 : 0]->value.f[c];
+ }
+ } else if (strcmp(callee, "mod") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_mod, type, op[0], op[1]);
+ } else if (strcmp(callee, "normalize") == 0) {
+ assert(op[0]->type->is_float());
+ float length = sqrtf(dot(op[0], op[0]));
+
+ if (length == 0)
+ return ir_constant::zero(mem_ctx, this->type);
+
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] / length;
+ } else if (strcmp(callee, "not") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_logic_not, type, op[0], NULL);
+ } else if (strcmp(callee, "notEqual") == 0) {
+ assert(op[0]->type->is_vector() && op[1] && op[1]->type->is_vector());
+ for (unsigned c = 0; c < op[0]->type->components(); c++) {
+ switch (op[0]->type->base_type) {
+ case GLSL_TYPE_UINT:
+ data.b[c] = op[0]->value.u[c] != op[1]->value.u[c];
+ break;
+ case GLSL_TYPE_INT:
+ data.b[c] = op[0]->value.i[c] != op[1]->value.i[c];
+ break;
+ case GLSL_TYPE_FLOAT:
+ data.b[c] = op[0]->value.f[c] != op[1]->value.f[c];
+ break;
+ case GLSL_TYPE_BOOL:
+ data.b[c] = op[0]->value.b[c] != op[1]->value.b[c];
+ break;
+ default:
+ assert(!"Should not get here.");
+ }
+ }
+ } else if (strcmp(callee, "outerProduct") == 0) {
+ assert(op[0]->type->is_vector() && op[1]->type->is_vector());
+ const unsigned m = op[0]->type->vector_elements;
+ const unsigned n = op[1]->type->vector_elements;
+ for (unsigned j = 0; j < n; j++) {
+ for (unsigned i = 0; i < m; i++) {
+ data.f[i+m*j] = op[0]->value.f[i] * op[1]->value.f[j];
+ }
+ }
+ } else if (strcmp(callee, "pow") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_binop_pow, type, op[0], op[1]);
+ } else if (strcmp(callee, "radians") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = M_PI/180.0 * op[0]->value.f[c];
+ } else if (strcmp(callee, "reflect") == 0) {
+ assert(op[0]->type->is_float());
+ float dot_NI = dot(op[1], op[0]);
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = op[0]->value.f[c] - 2 * dot_NI * op[1]->value.f[c];
+ } else if (strcmp(callee, "refract") == 0) {
+ const float eta = op[2]->value.f[0];
+ const float dot_NI = dot(op[1], op[0]);
+ const float k = 1.0 - eta * eta * (1.0 - dot_NI * dot_NI);
+ if (k < 0.0) {
+ return ir_constant::zero(mem_ctx, this->type);
+ } else {
+ for (unsigned c = 0; c < type->components(); c++) {
+ data.f[c] = eta * op[0]->value.f[c] - (eta * dot_NI + sqrtf(k))
+ * op[1]->value.f[c];
+ }
+ }
+ } else if (strcmp(callee, "sign") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sign, type, op[0], NULL);
+ } else if (strcmp(callee, "sin") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sin, type, op[0], NULL);
+ } else if (strcmp(callee, "sinh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = sinhf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "smoothstep") == 0) {
+ assert(num_parameters == 3);
+ assert(op[1]->type == op[0]->type);
+ unsigned edge_inc = op[0]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, e = 0; c < type->components(); e += edge_inc, c++) {
+ const float edge0 = op[0]->value.f[e];
+ const float edge1 = op[1]->value.f[e];
+ if (edge0 == edge1) {
+ data.f[c] = 0.0; /* Avoid a crash - results are undefined anyway */
+ } else {
+ const float numerator = op[2]->value.f[c] - edge0;
+ const float denominator = edge1 - edge0;
+ const float t = CLAMP(numerator/denominator, 0, 1);
+ data.f[c] = t * t * (3 - 2 * t);
+ }
+ }
+ } else if (strcmp(callee, "sqrt") == 0) {
+ expr = new(mem_ctx) ir_expression(ir_unop_sqrt, type, op[0], NULL);
+ } else if (strcmp(callee, "step") == 0) {
+ assert(op[0]->type->is_float() && op[1]->type->is_float());
+ /* op[0] (edge) may be either a scalar or a vector */
+ const unsigned c0_inc = op[0]->type->is_scalar() ? 0 : 1;
+ for (unsigned c = 0, c0 = 0; c < type->components(); c0 += c0_inc, c++)
+ data.f[c] = (op[1]->value.f[c] < op[0]->value.f[c0]) ? 0.0 : 1.0;
+ } else if (strcmp(callee, "tan") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = tanf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "tanh") == 0) {
+ assert(op[0]->type->is_float());
+ for (unsigned c = 0; c < op[0]->type->components(); c++)
+ data.f[c] = tanhf(op[0]->value.f[c]);
+ } else if (strcmp(callee, "transpose") == 0) {
+ assert(op[0]->type->is_matrix());
+ const unsigned n = op[0]->type->vector_elements;
+ const unsigned m = op[0]->type->matrix_columns;
+ for (unsigned j = 0; j < m; j++) {
+ for (unsigned i = 0; i < n; i++) {
+ data.f[m*i+j] += op[0]->value.f[i+n*j];
+ }
+ }
+ } else {
+ /* Unsupported builtin - some are not allowed in constant expressions. */
+ return NULL;
+ }
+ if (expr != NULL)
+ return expr->constant_expression_value();
-void
-ir_constant_visitor::visit(ir_loop_jump *ir)
-{
- (void) ir;
- value = NULL;
+ return new(mem_ctx) ir_constant(this->type, &data);
}
projects / mesa.git / blobdiff