c434782e3a
Use a shorter/simpler license convention, stops the header taking so much space. Follow the SPDX license specification: https://spdx.org/licenses - C/C++/objc/objc++ - Python - Shell Scripts - CMake, GNUmakefile While most of the source tree has been included - `./extern/` was left out. - `./intern/cycles` & `./intern/atomic` are also excluded because they use different header conventions. doc/license/SPDX-license-identifiers.txt has been added to list SPDX all used identifiers. See P2788 for the script that automated these edits. Reviewed By: brecht, mont29, sergey Ref D14069
109 lines
2.3 KiB
C
109 lines
2.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later
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* Copyright 2001-2002 NaN Holding BV. All rights reserved. */
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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 "IMB_imbuf.h"
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#include "IMB_imbuf_types.h"
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#include "imbuf.h"
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void IMB_flipy(struct ImBuf *ibuf)
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{
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size_t x_size, y_size;
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if (ibuf == NULL) {
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return;
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}
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if (ibuf->rect) {
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unsigned int *top, *bottom, *line;
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x_size = ibuf->x;
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y_size = ibuf->y;
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const size_t stride = x_size * sizeof(int);
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top = ibuf->rect;
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bottom = top + ((y_size - 1) * x_size);
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line = MEM_mallocN(stride, "linebuf");
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y_size >>= 1;
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for (; y_size > 0; y_size--) {
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memcpy(line, top, stride);
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memcpy(top, bottom, stride);
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memcpy(bottom, line, stride);
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bottom -= x_size;
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top += x_size;
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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_size = ibuf->x;
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y_size = ibuf->y;
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const size_t stride = x_size * 4 * sizeof(float);
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topf = ibuf->rect_float;
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bottomf = topf + 4 * ((y_size - 1) * x_size);
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linef = MEM_mallocN(stride, "linebuf");
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y_size >>= 1;
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for (; y_size > 0; y_size--) {
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memcpy(linef, topf, stride);
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memcpy(topf, bottomf, stride);
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memcpy(bottomf, linef, stride);
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bottomf -= 4 * x_size;
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topf += 4 * x_size;
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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) {
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return;
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}
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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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const size_t x_offset = (size_t)x * 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_offset + xr], ibuf->rect[x_offset + 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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const size_t x_offset = (size_t)x * 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_offset + xr) * 4], sizeof(float[4]));
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memcpy(&ibuf->rect_float[(x_offset + xr) * 4],
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&ibuf->rect_float[(x_offset + xl) * 4],
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sizeof(float[4]));
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memcpy(&ibuf->rect_float[(x_offset + xl) * 4], &px_f, sizeof(float[4]));
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}
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}
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}
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}
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