72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
// Project64 - A Nintendo 64 emulator
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// https://www.pj64-emu.com/
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// Copyright(C) 2001-2021 Project64
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// Copyright(C) 2007 Hiroshi Morii
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// Copyright(C) 2004 Daniel Borca
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// GNU/GPLv2 licensed: https://gnu.org/licenses/gpl-2.0.html
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#include <assert.h>
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#include "types.h"
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#include "internal.h"
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void
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_mesa_upscale_teximage2d(unsigned int inWidth, unsigned int inHeight,
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unsigned int outWidth, unsigned int outHeight,
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unsigned int comps,
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const byte *src, int srcRowStride,
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byte *dest)
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{
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unsigned int i, j, k;
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assert(outWidth >= inWidth);
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assert(outHeight >= inHeight);
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#if 1 /* H.Morii - faster loops */
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for (i = 0; i < inHeight; i++) {
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for (j = 0; j < inWidth; j++) {
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const int aa = (i * outWidth + j) * comps;
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const int bb = i * srcRowStride + j * comps;
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for (k = 0; k < comps; k++) {
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dest[aa + k] = src[bb + k];
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}
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}
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for (; j < outWidth; j++) {
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const int aa = (i * outWidth + j) * comps;
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const int bb = i * srcRowStride + (j - inWidth) * comps;
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for (k = 0; k < comps; k++) {
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dest[aa + k] = src[bb + k];
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}
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}
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}
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for (; i < outHeight; i++) {
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for (j = 0; j < inWidth; j++) {
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const int aa = (i * outWidth + j) * comps;
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const int bb = (i - inHeight) * srcRowStride + j * comps;
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for (k = 0; k < comps; k++) {
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dest[aa + k] = src[bb + k];
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}
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}
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for (; j < outWidth; j++) {
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const int aa = (i * outWidth + j) * comps;
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const int bb = (i - inHeight) * srcRowStride + (j - inWidth) * comps;
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for (k = 0; k < comps; k++) {
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dest[aa + k] = src[bb + k];
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}
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}
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}
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#else
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for (i = 0; i < outHeight; i++) {
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const int ii = i % inHeight;
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for (j = 0; j < outWidth; j++) {
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const int jj = j % inWidth;
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const int aa = (i * outWidth + j) * comps;
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const int bb = ii * srcRowStride + jj * comps;
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for (k = 0; k < comps; k++) {
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dest[aa + k] = src[bb + k];
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}
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}
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}
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#endif
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}
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