namespace ir_builder {
+#ifndef WRITEMASK_X
+enum writemask {
+ WRITEMASK_X = 0x1,
+ WRITEMASK_Y = 0x2,
+ WRITEMASK_Z = 0x4,
+ WRITEMASK_W = 0x8,
+};
+#endif
+
/**
* This little class exists to let the helper expression generators
* take either an ir_rvalue * or an ir_variable * to be automatically
class ir_factory {
public:
+ ir_factory()
+ : instructions(NULL),
+ mem_ctx(NULL)
+ {
+ return;
+ }
+
void emit(ir_instruction *ir);
+ ir_variable *make_temp(const glsl_type *type, const char *name);
+
+ ir_constant*
+ constant(float f)
+ {
+ return new(mem_ctx) ir_constant(f);
+ }
+
+ ir_constant*
+ constant(int i)
+ {
+ return new(mem_ctx) ir_constant(i);
+ }
+
+ ir_constant*
+ constant(unsigned u)
+ {
+ return new(mem_ctx) ir_constant(u);
+ }
+
+ ir_constant*
+ constant(bool b)
+ {
+ return new(mem_ctx) ir_constant(b);
+ }
exec_list *instructions;
void *mem_ctx;
ir_assignment *assign(deref lhs, operand rhs);
ir_assignment *assign(deref lhs, operand rhs, int writemask);
+ir_expression *expr(ir_expression_operation op, operand a);
ir_expression *expr(ir_expression_operation op, operand a, operand b);
ir_expression *add(operand a, operand b);
ir_expression *sub(operand a, operand b);
ir_expression *mul(operand a, operand b);
+ir_expression *div(operand a, operand b);
+ir_expression *round_even(operand a);
ir_expression *dot(operand a, operand b);
+ir_expression *clamp(operand a, operand b, operand c);
ir_expression *saturate(operand a);
+ir_expression *equal(operand a, operand b);
+ir_expression *less(operand a, operand b);
+ir_expression *greater(operand a, operand b);
+ir_expression *lequal(operand a, operand b);
+ir_expression *gequal(operand a, operand b);
+
+ir_expression *logic_not(operand a);
+ir_expression *logic_and(operand a, operand b);
+ir_expression *logic_or(operand a, operand b);
+
+ir_expression *bit_not(operand a);
+ir_expression *bit_or(operand a, operand b);
+ir_expression *bit_and(operand a, operand b);
+ir_expression *lshift(operand a, operand b);
+ir_expression *rshift(operand a, operand b);
+
+ir_expression *f2i(operand a);
+ir_expression *i2f(operand a);
+ir_expression *f2u(operand a);
+ir_expression *u2f(operand a);
+ir_expression *i2u(operand a);
+ir_expression *u2i(operand a);
+
+/**
+ * Swizzle away later components, but preserve the ordering.
+ */
+ir_swizzle *swizzle_for_size(operand a, unsigned components);
+
ir_swizzle *swizzle_xxxx(operand a);
ir_swizzle *swizzle_yyyy(operand a);
ir_swizzle *swizzle_zzzz(operand a);
ir_swizzle *swizzle_xyz(operand a);
ir_swizzle *swizzle_xyzw(operand a);
+ir_if *if_tree(operand condition,
+ ir_instruction *then_branch);
+ir_if *if_tree(operand condition,
+ ir_instruction *then_branch,
+ ir_instruction *else_branch);
+
} /* namespace ir_builder */