/*
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* Copyright (C) 2009 Nicolai Haehnle.
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*
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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*/
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#include "radeon_code.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "radeon_program.h"
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void rc_constants_init(struct rc_constant_list * c)
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{
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memset(c, 0, sizeof(*c));
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}
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/**
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* Copy a constants structure, assuming that the destination structure
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* is not initialized.
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*/
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void rc_constants_copy(struct rc_constant_list * dst, struct rc_constant_list * src)
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{
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dst->Constants = malloc(sizeof(struct rc_constant) * src->Count);
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memcpy(dst->Constants, src->Constants, sizeof(struct rc_constant) * src->Count);
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dst->Count = src->Count;
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dst->_Reserved = src->Count;
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}
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void rc_constants_destroy(struct rc_constant_list * c)
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{
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free(c->Constants);
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memset(c, 0, sizeof(*c));
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}
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unsigned rc_constants_add(struct rc_constant_list * c, struct rc_constant * constant)
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{
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unsigned index = c->Count;
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if (c->Count >= c->_Reserved) {
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struct rc_constant * newlist;
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c->_Reserved = c->_Reserved * 2;
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if (!c->_Reserved)
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c->_Reserved = 16;
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newlist = malloc(sizeof(struct rc_constant) * c->_Reserved);
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memcpy(newlist, c->Constants, sizeof(struct rc_constant) * c->Count);
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free(c->Constants);
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c->Constants = newlist;
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}
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c->Constants[index] = *constant;
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c->Count++;
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return index;
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}
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/**
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* Add a state vector to the constant list, while trying to avoid duplicates.
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*/
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unsigned rc_constants_add_state(struct rc_constant_list * c, unsigned state0, unsigned state1)
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{
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unsigned index;
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struct rc_constant constant;
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for(index = 0; index < c->Count; ++index) {
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if (c->Constants[index].Type == RC_CONSTANT_STATE) {
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if (c->Constants[index].u.State[0] == state0 &&
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c->Constants[index].u.State[1] == state1)
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return index;
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}
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}
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memset(&constant, 0, sizeof(constant));
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constant.Type = RC_CONSTANT_STATE;
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constant.Size = 4;
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constant.u.State[0] = state0;
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constant.u.State[1] = state1;
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return rc_constants_add(c, &constant);
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}
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/**
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* Add an immediate vector to the constant list, while trying to avoid
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* duplicates.
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*/
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unsigned rc_constants_add_immediate_vec4(struct rc_constant_list * c, const float * data)
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{
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unsigned index;
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struct rc_constant constant;
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for(index = 0; index < c->Count; ++index) {
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if (c->Constants[index].Type == RC_CONSTANT_IMMEDIATE) {
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if (!memcmp(c->Constants[index].u.Immediate, data, sizeof(float)*4))
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return index;
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}
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}
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memset(&constant, 0, sizeof(constant));
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constant.Type = RC_CONSTANT_IMMEDIATE;
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constant.Size = 4;
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memcpy(constant.u.Immediate, data, sizeof(float) * 4);
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return rc_constants_add(c, &constant);
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}
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/**
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* Add an immediate scalar to the constant list, while trying to avoid
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* duplicates.
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*/
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unsigned rc_constants_add_immediate_scalar(struct rc_constant_list * c, float data, unsigned * swizzle)
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{
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unsigned index;
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int free_index = -1;
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struct rc_constant constant;
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for(index = 0; index < c->Count; ++index) {
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if (c->Constants[index].Type == RC_CONSTANT_IMMEDIATE) {
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unsigned comp;
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for(comp = 0; comp < c->Constants[index].Size; ++comp) {
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if (c->Constants[index].u.Immediate[comp] == data) {
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*swizzle = RC_MAKE_SWIZZLE_SMEAR(comp);
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return index;
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}
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}
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if (c->Constants[index].Size < 4)
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free_index = index;
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}
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}
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if (free_index >= 0) {
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unsigned comp = c->Constants[free_index].Size++;
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c->Constants[free_index].u.Immediate[comp] = data;
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*swizzle = RC_MAKE_SWIZZLE_SMEAR(comp);
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return free_index;
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}
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memset(&constant, 0, sizeof(constant));
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constant.Type = RC_CONSTANT_IMMEDIATE;
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constant.Size = 1;
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constant.u.Immediate[0] = data;
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*swizzle = RC_SWIZZLE_XXXX;
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return rc_constants_add(c, &constant);
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}
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void rc_constants_print(struct rc_constant_list * c)
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{
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unsigned int i;
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for(i = 0; i < c->Count; i++) {
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if (c->Constants[i].Type == RC_CONSTANT_IMMEDIATE) {
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float * values = c->Constants[i].u.Immediate;
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fprintf(stderr, "CONST[%u] = "
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"{ %10.4f %10.4f %10.4f %10.4f }\n",
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i, values[0],values[1], values[2], values[3]);
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}
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}
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}
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