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mpv/test/scale_test.h
wm4 94d853d3a3 test: add tests for zimg RGB repacking
This tests the RGB repacker code in zimg, which deserves to be tested
because it's tricky and there will be more formats.

scale_test.c contains some code that can be used to test any scaler. Or
at least that would be great; currently it can only test repacking of
some byte-aligned-component RGB formats. It should be called
repack_test.c, but I'm too lazy to change the filename now.

The idea is that libswscale is used to cross-check the conversions
performed by the zimg wrapper. This is why it's "OK" that scale_test.c
does libswscale calls.

scale_sws.c is the equivalent to scale_zimg.c, and is of course
worthless (because it tests libswscale by comparing the results with
libswscale), but still might help with finding bugs in scale_test.c.

This borrows a sorted list of image formats from test/img_format.c, for
the same reason that file sorts them.

There's a slight possibility that this can be used to test vo_gpu.c too
some times in the future.
2019-11-09 01:55:13 +01:00

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732 B
C

#pragma once
#include "tests.h"
#include "video/mp_image.h"
struct scale_test_fns {
bool (*scale)(void *ctx, struct mp_image *dst, struct mp_image *src);
bool (*supports_fmts)(void *ctx, int imgfmt_dst, int imgfmt_src);
};
struct scale_test {
// To be filled in by user.
const struct scale_test_fns *fns;
void *fns_priv;
const char *test_name;
struct test_ctx *ctx;
// Private.
struct mp_image *img_repack_rgb8;
struct mp_image *img_repack_rgba8;
struct mp_image *img_repack_rgb16;
struct mp_image *img_repack_rgba16;
struct mp_sws_context *sws;
int fail;
};
// Test color repacking between packed formats (typically RGB).
void repack_test_run(struct scale_test *stest);