project64/Source/Project64-video/TextureEnhancer/tc-1.1+/texstore.c

94 lines
3.0 KiB
C

/*
* Mesa 3-D graphics library
* Version: 6.3
*
* Copyright (C) 1999-2004 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.
*/
/* Copyright (C) 2007 Hiroshi Morii <koolsmoky(at)users.sourceforge.net>
* _mesa_upscale_teximage2d speedup
*/
#include <assert.h>
#include "types.h"
#include "internal.h"
void
_mesa_upscale_teximage2d (unsigned int inWidth, unsigned int inHeight,
unsigned int outWidth, unsigned int outHeight,
unsigned int comps,
const byte *src, int srcRowStride,
byte *dest)
{
unsigned int i, j, k;
assert(outWidth >= inWidth);
assert(outHeight >= inHeight);
#if 1 /* H.Morii - faster loops */
for (i = 0; i < inHeight; i++) {
for (j = 0; j < inWidth; j++) {
const int aa = (i * outWidth + j) * comps;
const int bb = i * srcRowStride + j * comps;
for (k = 0; k < comps; k++) {
dest[aa + k] = src[bb + k];
}
}
for (; j < outWidth; j++) {
const int aa = (i * outWidth + j) * comps;
const int bb = i * srcRowStride + (j - inWidth) * comps;
for (k = 0; k < comps; k++) {
dest[aa + k] = src[bb + k];
}
}
}
for (; i < outHeight; i++) {
for (j = 0; j < inWidth; j++) {
const int aa = (i * outWidth + j) * comps;
const int bb = (i - inHeight) * srcRowStride + j * comps;
for (k = 0; k < comps; k++) {
dest[aa + k] = src[bb + k];
}
}
for (; j < outWidth; j++) {
const int aa = (i * outWidth + j) * comps;
const int bb = (i - inHeight) * srcRowStride + (j - inWidth) * comps;
for (k = 0; k < comps; k++) {
dest[aa + k] = src[bb + k];
}
}
}
#else
for (i = 0; i < outHeight; i++) {
const int ii = i % inHeight;
for (j = 0; j < outWidth; j++) {
const int jj = j % inWidth;
const int aa = (i * outWidth + j) * comps;
const int bb = ii * srcRowStride + jj * comps;
for (k = 0; k < comps; k++) {
dest[aa + k] = src[bb + k];
}
}
}
#endif
}