Campbell Barton
de13d0a80c
While \file doesn't need an argument, it can't have another doxy command after it.
114 lines
2.6 KiB
C
114 lines
2.6 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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* rotate.c
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*/
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/** \file
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* \ingroup imbuf
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*/
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#include "BLI_utildefines.h"
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#include "MEM_guardedalloc.h"
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#include "imbuf.h"
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#include "IMB_imbuf_types.h"
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#include "IMB_imbuf.h"
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void IMB_flipy(struct ImBuf *ibuf)
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{
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int x, y;
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if (ibuf == NULL) return;
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if (ibuf->rect) {
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unsigned int *top, *bottom, *line;
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x = ibuf->x;
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y = ibuf->y;
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top = ibuf->rect;
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bottom = top + ((y - 1) * x);
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line = MEM_mallocN(x * sizeof(int), "linebuf");
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y >>= 1;
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for (; y > 0; y--) {
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memcpy(line, top, x * sizeof(int));
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memcpy(top, bottom, x * sizeof(int));
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memcpy(bottom, line, x * sizeof(int));
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bottom -= x;
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top += x;
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}
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MEM_freeN(line);
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}
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if (ibuf->rect_float) {
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float *topf = NULL, *bottomf = NULL, *linef = NULL;
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x = ibuf->x;
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y = ibuf->y;
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topf = ibuf->rect_float;
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bottomf = topf + 4 * ((y - 1) * x);
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linef = MEM_mallocN(4 * x * sizeof(float), "linebuff");
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y >>= 1;
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for (; y > 0; y--) {
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memcpy(linef, topf, 4 * x * sizeof(float));
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memcpy(topf, bottomf, 4 * x * sizeof(float));
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memcpy(bottomf, linef, 4 * x * sizeof(float));
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bottomf -= 4 * x;
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topf += 4 * x;
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}
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MEM_freeN(linef);
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}
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}
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void IMB_flipx(struct ImBuf *ibuf)
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{
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int x, y, xr, xl, yi;
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float px_f[4];
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if (ibuf == NULL) return;
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x = ibuf->x;
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y = ibuf->y;
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if (ibuf->rect) {
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for (yi = y - 1; yi >= 0; yi--) {
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for (xr = x - 1, xl = 0; xr >= xl; xr--, xl++) {
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SWAP(unsigned int, ibuf->rect[(x * yi) + xr], ibuf->rect[(x * yi) + xl]);
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}
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}
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}
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if (ibuf->rect_float) {
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for (yi = y - 1; yi >= 0; yi--) {
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for (xr = x - 1, xl = 0; xr >= xl; xr--, xl++) {
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memcpy(&px_f, &ibuf->rect_float[((x * yi) + xr) * 4], 4 * sizeof(float));
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memcpy(&ibuf->rect_float[((x * yi) + xr) * 4], &ibuf->rect_float[((x * yi) + xl) * 4], 4 * sizeof(float));
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memcpy(&ibuf->rect_float[((x * yi) + xl) * 4], &px_f, 4 * sizeof(float));
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}
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}
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}
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}
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