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/**************************************************************************
*
* Copyright 2009 VMware, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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.
*
**************************************************************************/
/**
* @file
* Helper functions for constant building.
*
* @author Jose Fonseca <jfonseca@vmware.com>
*/
#ifndef LP_BLD_CONST_H
#define LP_BLD_CONST_H
#include "pipe/p_compiler.h"
#include "gallivm/lp_bld.h"
#include "gallivm/lp_bld_init.h"
struct lp_type;
unsigned
lp_mantissa(struct lp_type type);
unsigned
lp_const_shift(struct lp_type type);
unsigned
lp_const_offset(struct lp_type type);
double
lp_const_scale(struct lp_type type);
double
lp_const_min(struct lp_type type);
double
lp_const_max(struct lp_type type);
double
lp_const_eps(struct lp_type type);
LLVMValueRef
lp_build_undef(struct gallivm_state *gallivm, struct lp_type type);
LLVMValueRef
lp_build_zero(struct gallivm_state *gallivm, struct lp_type type);
LLVMValueRef
lp_build_one(struct gallivm_state *gallivm, struct lp_type type);
LLVMValueRef
lp_build_const_elem(struct gallivm_state *gallivm, struct lp_type type,
double val);
LLVMValueRef
lp_build_const_vec(struct gallivm_state *gallivm, struct lp_type type,
double val);
LLVMValueRef
lp_build_const_int_vec(struct gallivm_state *gallivm,
struct lp_type type, long long val);
LLVMValueRef
lp_build_const_aos(struct gallivm_state *gallivm, struct lp_type type,
double r, double g, double b, double a,
const unsigned char *swizzle);
LLVMValueRef
lp_build_const_mask_aos(struct gallivm_state *gallivm,
struct lp_type type,
unsigned mask);
static INLINE LLVMValueRef
lp_build_const_int32(struct gallivm_state *gallivm, int i)
{
return LLVMConstInt(LLVMInt32TypeInContext(gallivm->context), i, 0);
}
static INLINE LLVMValueRef
lp_build_const_float(struct gallivm_state *gallivm, float x)
{
return LLVMConstReal(LLVMFloatTypeInContext(gallivm->context), x);
}
/** Return constant-valued pointer to int */
static INLINE LLVMValueRef
lp_build_const_int_pointer(struct gallivm_state *gallivm, const void *ptr)
{
LLVMTypeRef int_type;
LLVMValueRef v;
/* int type large enough to hold a pointer */
int_type = LLVMIntTypeInContext(gallivm->context, 8 * sizeof(void *));
v = LLVMConstInt(int_type, (uintptr_t) ptr, 0);
v = LLVMBuildIntToPtr(gallivm->builder, v,
LLVMPointerType(int_type, 0),
"cast int to ptr");
return v;
}
#endif /* !LP_BLD_CONST_H */
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