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/*
* Mesa 3-D graphics library
* Version: 6.5.3
*
* Copyright (C) 1999-2005 Brian Paul 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, 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 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
* BRIAN PAUL 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 "glheader.h"
#include "imports.h"
#include "mtypes.h"
#include "prog_instruction.h"
/**
* Initialize program instruction fields to defaults.
* \param inst first instruction to initialize
* \param count number of instructions to initialize
*/
void
_mesa_init_instructions(struct prog_instruction *inst, GLuint count)
{
GLuint i;
_mesa_bzero(inst, count * sizeof(struct prog_instruction));
for (i = 0; i < count; i++) {
inst[i].SrcReg[0].File = PROGRAM_UNDEFINED;
inst[i].SrcReg[0].Swizzle = SWIZZLE_NOOP;
inst[i].SrcReg[1].File = PROGRAM_UNDEFINED;
inst[i].SrcReg[1].Swizzle = SWIZZLE_NOOP;
inst[i].SrcReg[2].File = PROGRAM_UNDEFINED;
inst[i].SrcReg[2].Swizzle = SWIZZLE_NOOP;
inst[i].DstReg.File = PROGRAM_UNDEFINED;
inst[i].DstReg.WriteMask = WRITEMASK_XYZW;
inst[i].DstReg.CondMask = COND_TR;
inst[i].DstReg.CondSwizzle = SWIZZLE_NOOP;
inst[i].SaturateMode = SATURATE_OFF;
inst[i].Precision = FLOAT32;
}
}
/**
* Allocate an array of program instructions.
* \param numInst number of instructions
* \return pointer to instruction memory
*/
struct prog_instruction *
_mesa_alloc_instructions(GLuint numInst)
{
return (struct prog_instruction *)
_mesa_calloc(numInst * sizeof(struct prog_instruction));
}
/**
* Reallocate memory storing an array of program instructions.
* This is used when we need to append additional instructions onto an
* program.
* \param oldInst pointer to first of old/src instructions
* \param numOldInst number of instructions at <oldInst>
* \param numNewInst desired size of new instruction array.
* \return pointer to start of new instruction array.
*/
struct prog_instruction *
_mesa_realloc_instructions(struct prog_instruction *oldInst,
GLuint numOldInst, GLuint numNewInst)
{
struct prog_instruction *newInst;
newInst = (struct prog_instruction *)
_mesa_realloc(oldInst,
numOldInst * sizeof(struct prog_instruction),
numNewInst * sizeof(struct prog_instruction));
return newInst;
}
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