/*
* Copyright © 2012 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
#include "ir.h"
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
* dereferenced, while still providing compile-time type checking.
*
* You don't have to explicitly call the constructor -- C++ will see
* that you passed an ir_variable, and silently call the
* operand(ir_variable *var) constructor behind your back.
*/
class operand {
public:
operand(ir_rvalue *val)
: val(val)
{
}
operand(ir_variable *var)
{
void *mem_ctx = ralloc_parent(var);
val = new(mem_ctx) ir_dereference_variable(var);
}
ir_rvalue *val;
};
/** Automatic generator for ir_dereference_variable on assignment LHS.
*
* \sa operand
*/
class deref {
public:
deref(ir_dereference *val)
: val(val)
{
}
deref(ir_variable *var)
{
void *mem_ctx = ralloc_parent(var);
val = new(mem_ctx) ir_dereference_variable(var);
}
ir_dereference *val;
};
class ir_factory {
public:
ir_factory(exec_list *instructions = NULL, void *mem_ctx = NULL)
: instructions(instructions),
mem_ctx(mem_ctx)
{
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_assignment *assign(deref lhs, operand rhs, operand condition);
ir_assignment *assign(deref lhs, operand rhs, operand condition, int writemask);
ir_return *ret(operand retval);
ir_expression *expr(ir_expression_operation op, operand a);
ir_expression *expr(ir_expression_operation op, operand a, operand b);
ir_expression *expr(ir_expression_operation op, operand a, operand b, operand c);
ir_expression *add(operand a, operand b);
ir_expression *sub(operand a, operand b);
ir_expression *mul(operand a, operand b);
ir_expression *imul_high(operand a, operand b);
ir_expression *div(operand a, operand b);
ir_expression *carry(operand a, operand b);
ir_expression *borrow(operand a, operand b);
ir_expression *trunc(operand a);
ir_expression *round_even(operand a);
ir_expression *fract(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 *abs(operand a);
ir_expression *neg(operand a);
ir_expression *sin(operand a);
ir_expression *cos(operand a);
ir_expression *exp(operand a);
ir_expression *rsq(operand a);
ir_expression *sqrt(operand a);
ir_expression *log(operand a);
ir_expression *sign(operand a);
ir_expression *equal(operand a, operand b);
ir_expression *nequal(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 *bitcast_f2i(operand a);
ir_expression *i2f(operand a);
ir_expression *bitcast_i2f(operand a);
ir_expression *f2u(operand a);
ir_expression *bitcast_f2u(operand a);
ir_expression *u2f(operand a);
ir_expression *bitcast_u2f(operand a);
ir_expression *i2u(operand a);
ir_expression *u2i(operand a);
ir_expression *b2i(operand a);
ir_expression *i2b(operand a);
ir_expression *f2b(operand a);
ir_expression *b2f(operand a);
ir_expression *f2d(operand a);
ir_expression *i2d(operand a);
ir_expression *u2d(operand a);
ir_expression *min2(operand a, operand b);
ir_expression *max2(operand a, operand b);
ir_expression *interpolate_at_centroid(operand a);
ir_expression *interpolate_at_offset(operand a, operand b);
ir_expression *interpolate_at_sample(operand a, operand b);
ir_expression *fma(operand a, operand b, operand c);
ir_expression *lrp(operand x, operand y, operand a);
ir_expression *csel(operand a, operand b, operand c);
ir_expression *bitfield_insert(operand a, operand b, operand c, operand d);
ir_swizzle *swizzle(operand a, int swizzle, int components);
/**
* 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_wwww(operand a);
ir_swizzle *swizzle_x(operand a);
ir_swizzle *swizzle_y(operand a);
ir_swizzle *swizzle_z(operand a);
ir_swizzle *swizzle_w(operand a);
ir_swizzle *swizzle_xy(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 */