forked from KolibriOS/kolibrios
223 lines
6.1 KiB
C
223 lines
6.1 KiB
C
/*
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* This file is part of FFmpeg.
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*
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* FFmpeg is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* FFmpeg 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with FFmpeg; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "config.h"
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#include "common.h"
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#include "pixelutils.h"
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#include "internal.h"
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#if CONFIG_PIXELUTILS
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#include "x86/pixelutils.h"
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static av_always_inline int sad_wxh(const uint8_t *src1, ptrdiff_t stride1,
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const uint8_t *src2, ptrdiff_t stride2,
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int w, int h)
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{
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int x, y, sum = 0;
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for (y = 0; y < h; y++) {
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for (x = 0; x < w; x++)
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sum += abs(src1[x] - src2[x]);
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src1 += stride1;
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src2 += stride2;
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}
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return sum;
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}
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#define DECLARE_BLOCK_FUNCTIONS(size) \
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static int block_sad_##size##x##size##_c(const uint8_t *src1, ptrdiff_t stride1, \
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const uint8_t *src2, ptrdiff_t stride2) \
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{ \
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return sad_wxh(src1, stride1, src2, stride2, size, size); \
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}
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DECLARE_BLOCK_FUNCTIONS(2)
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DECLARE_BLOCK_FUNCTIONS(4)
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DECLARE_BLOCK_FUNCTIONS(8)
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DECLARE_BLOCK_FUNCTIONS(16)
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static const av_pixelutils_sad_fn sad_c[] = {
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block_sad_2x2_c,
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block_sad_4x4_c,
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block_sad_8x8_c,
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block_sad_16x16_c,
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};
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#endif /* CONFIG_PIXELUTILS */
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av_pixelutils_sad_fn av_pixelutils_get_sad_fn(int w_bits, int h_bits, int aligned, void *log_ctx)
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{
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#if !CONFIG_PIXELUTILS
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av_log(log_ctx, AV_LOG_ERROR, "pixelutils support is required "
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"but libavutil is not compiled with it\n");
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return NULL;
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#else
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av_pixelutils_sad_fn sad[FF_ARRAY_ELEMS(sad_c)];
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memcpy(sad, sad_c, sizeof(sad));
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if (w_bits < 1 || w_bits > FF_ARRAY_ELEMS(sad) ||
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h_bits < 1 || h_bits > FF_ARRAY_ELEMS(sad))
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return NULL;
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if (w_bits != h_bits) // only squared sad for now
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return NULL;
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#if ARCH_X86
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ff_pixelutils_sad_init_x86(sad, aligned);
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#endif
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return sad[w_bits - 1];
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#endif
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}
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#ifdef TEST
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#define W1 320
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#define H1 240
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#define W2 640
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#define H2 480
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static int run_single_test(const char *test,
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const uint8_t *block1, ptrdiff_t stride1,
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const uint8_t *block2, ptrdiff_t stride2,
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int align, int n)
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{
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int out, ref;
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av_pixelutils_sad_fn f_ref = sad_c[n - 1];
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av_pixelutils_sad_fn f_out = av_pixelutils_get_sad_fn(n, n, align, NULL);
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switch (align) {
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case 0: block1++; block2++; break;
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case 1: block2++; break;
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case 2: break;
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}
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out = f_out(block1, stride1, block2, stride2);
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ref = f_ref(block1, stride1, block2, stride2);
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printf("[%s] [%c%c] SAD [%s] %dx%d=%d ref=%d\n",
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out == ref ? "OK" : "FAIL",
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align ? 'A' : 'U', align == 2 ? 'A' : 'U',
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test, 1<<n, 1<<n, out, ref);
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return out != ref;
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}
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static int run_test(const char *test,
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const uint8_t *b1, const uint8_t *b2)
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{
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int i, a, ret = 0;
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for (a = 0; a < 3; a++) {
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const uint8_t *block1 = b1;
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const uint8_t *block2 = b2;
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switch (a) {
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case 0: block1++; block2++; break;
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case 1: block2++; break;
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case 2: break;
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}
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for (i = 1; i <= FF_ARRAY_ELEMS(sad_c); i++) {
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int r = run_single_test(test, b1, W1, b2, W2, a, i);
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if (r)
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ret = r;
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}
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}
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return ret;
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}
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int main(void)
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{
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int i, align, ret;
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uint8_t *buf1 = av_malloc(W1*H1);
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uint8_t *buf2 = av_malloc(W2*H2);
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uint32_t state = 0;
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if (!buf1 || !buf2) {
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fprintf(stderr, "malloc failure\n");
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ret = 1;
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goto end;
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}
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ff_check_pixfmt_descriptors();
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#define RANDOM_INIT(buf, size) do { \
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int k; \
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for (k = 0; k < size; k++) { \
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state = state * 1664525 + 1013904223; \
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buf[k] = state>>24; \
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} \
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} while (0)
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/* Normal test with different strides */
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RANDOM_INIT(buf1, W1*H1);
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RANDOM_INIT(buf2, W2*H2);
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ret = run_test("random", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Check for maximum SAD */
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memset(buf1, 0xff, W1*H1);
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memset(buf2, 0x00, W2*H2);
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ret = run_test("max", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Check for minimum SAD */
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memset(buf1, 0x90, W1*H1);
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memset(buf2, 0x90, W2*H2);
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ret = run_test("min", buf1, buf2);
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if (ret < 0)
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goto end;
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/* Exact buffer sizes, to check for overreads */
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for (i = 1; i <= 4; i++) {
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for (align = 0; align < 3; align++) {
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int size1, size2;
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av_freep(&buf1);
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av_freep(&buf2);
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size1 = size2 = 1 << (i << 1);
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switch (align) {
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case 0: size1++; size2++; break;
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case 1: size2++; break;
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case 2: break;
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}
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buf1 = av_malloc(size1);
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buf2 = av_malloc(size2);
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if (!buf1 || !buf2) {
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fprintf(stderr, "malloc failure\n");
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ret = 1;
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goto end;
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}
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RANDOM_INIT(buf1, size1);
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RANDOM_INIT(buf2, size2);
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ret = run_single_test("small", buf1, 1<<i, buf2, 1<<i, align, i);
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if (ret < 0)
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goto end;
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}
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}
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end:
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av_free(buf1);
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av_free(buf2);
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return ret;
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}
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#endif /* TEST */
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