455 lines
18 KiB
C
Executable file
455 lines
18 KiB
C
Executable file
/*
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Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely.
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*/
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#include "SDL_test_font.h"
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#include "testyuv_cvt.h"
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/* 422 (YUY2, etc) formats are the largest */
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#define MAX_YUV_SURFACE_SIZE(W, H, P) (H*4*(W+P+1)/2)
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/* Return true if the YUV format is packed pixels */
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static SDL_bool is_packed_yuv_format(Uint32 format)
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{
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return (format == SDL_PIXELFORMAT_YUY2 ||
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format == SDL_PIXELFORMAT_UYVY ||
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format == SDL_PIXELFORMAT_YVYU);
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}
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/* Create a surface with a good pattern for verifying YUV conversion */
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static SDL_Surface *generate_test_pattern(int pattern_size)
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{
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SDL_Surface *pattern = SDL_CreateRGBSurfaceWithFormat(0, pattern_size, pattern_size, 0, SDL_PIXELFORMAT_RGB24);
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if (pattern) {
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int i, x, y;
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Uint8 *p, c;
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const int thickness = 2; /* Important so 2x2 blocks of color are the same, to avoid Cr/Cb interpolation over pixels */
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/* R, G, B in alternating horizontal bands */
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for (y = 0; y < pattern->h; y += thickness) {
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for (i = 0; i < thickness; ++i) {
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p = (Uint8 *)pattern->pixels + (y + i) * pattern->pitch + ((y/thickness) % 3);
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for (x = 0; x < pattern->w; ++x) {
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*p = 0xFF;
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p += 3;
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}
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}
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}
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/* Black and white in alternating vertical bands */
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c = 0xFF;
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for (x = 1*thickness; x < pattern->w; x += 2*thickness) {
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for (i = 0; i < thickness; ++i) {
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p = (Uint8 *)pattern->pixels + (x + i)*3;
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for (y = 0; y < pattern->h; ++y) {
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SDL_memset(p, c, 3);
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p += pattern->pitch;
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}
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}
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if (c) {
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c = 0x00;
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} else {
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c = 0xFF;
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}
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}
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}
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return pattern;
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}
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static SDL_bool verify_yuv_data(Uint32 format, const Uint8 *yuv, int yuv_pitch, SDL_Surface *surface)
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{
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const int tolerance = 20;
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const int size = (surface->h * surface->pitch);
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Uint8 *rgb;
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SDL_bool result = SDL_FALSE;
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rgb = (Uint8 *)SDL_malloc(size);
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if (!rgb) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Out of memory");
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return SDL_FALSE;
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}
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if (SDL_ConvertPixels(surface->w, surface->h, format, yuv, yuv_pitch, surface->format->format, rgb, surface->pitch) == 0) {
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int x, y;
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result = SDL_TRUE;
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for (y = 0; y < surface->h; ++y) {
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const Uint8 *actual = rgb + y * surface->pitch;
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const Uint8 *expected = (const Uint8 *)surface->pixels + y * surface->pitch;
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for (x = 0; x < surface->w; ++x) {
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int deltaR = (int)actual[0] - expected[0];
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int deltaG = (int)actual[1] - expected[1];
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int deltaB = (int)actual[2] - expected[2];
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int distance = (deltaR * deltaR + deltaG * deltaG + deltaB * deltaB);
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if (distance > tolerance) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Pixel at %d,%d was 0x%.2x,0x%.2x,0x%.2x, expected 0x%.2x,0x%.2x,0x%.2x, distance = %d\n", x, y, actual[0], actual[1], actual[2], expected[0], expected[1], expected[2], distance);
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result = SDL_FALSE;
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}
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actual += 3;
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expected += 3;
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}
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}
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} else {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(format), SDL_GetPixelFormatName(surface->format->format), SDL_GetError());
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}
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SDL_free(rgb);
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return result;
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}
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static int run_automated_tests(int pattern_size, int extra_pitch)
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{
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const Uint32 formats[] = {
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SDL_PIXELFORMAT_YV12,
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SDL_PIXELFORMAT_IYUV,
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SDL_PIXELFORMAT_NV12,
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SDL_PIXELFORMAT_NV21,
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SDL_PIXELFORMAT_YUY2,
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SDL_PIXELFORMAT_UYVY,
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SDL_PIXELFORMAT_YVYU
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};
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int i, j;
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SDL_Surface *pattern = generate_test_pattern(pattern_size);
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const int yuv_len = MAX_YUV_SURFACE_SIZE(pattern->w, pattern->h, extra_pitch);
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Uint8 *yuv1 = (Uint8 *)SDL_malloc(yuv_len);
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Uint8 *yuv2 = (Uint8 *)SDL_malloc(yuv_len);
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int yuv1_pitch, yuv2_pitch;
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int result = -1;
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if (!pattern || !yuv1 || !yuv2) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't allocate test surfaces");
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goto done;
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}
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/* Verify conversion from YUV formats */
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for (i = 0; i < SDL_arraysize(formats); ++i) {
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if (!ConvertRGBtoYUV(formats[i], pattern->pixels, pattern->pitch, yuv1, pattern->w, pattern->h, SDL_GetYUVConversionModeForResolution(pattern->w, pattern->h), 0, 100)) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "ConvertRGBtoYUV() doesn't support converting to %s\n", SDL_GetPixelFormatName(formats[i]));
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goto done;
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}
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yuv1_pitch = CalculateYUVPitch(formats[i], pattern->w);
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if (!verify_yuv_data(formats[i], yuv1, yuv1_pitch, pattern)) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed conversion from %s to RGB\n", SDL_GetPixelFormatName(formats[i]));
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goto done;
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}
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}
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/* Verify conversion to YUV formats */
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for (i = 0; i < SDL_arraysize(formats); ++i) {
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yuv1_pitch = CalculateYUVPitch(formats[i], pattern->w) + extra_pitch;
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if (SDL_ConvertPixels(pattern->w, pattern->h, pattern->format->format, pattern->pixels, pattern->pitch, formats[i], yuv1, yuv1_pitch) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(pattern->format->format), SDL_GetPixelFormatName(formats[i]), SDL_GetError());
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goto done;
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}
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if (!verify_yuv_data(formats[i], yuv1, yuv1_pitch, pattern)) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed conversion from RGB to %s\n", SDL_GetPixelFormatName(formats[i]));
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goto done;
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}
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}
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/* Verify conversion between YUV formats */
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for (i = 0; i < SDL_arraysize(formats); ++i) {
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for (j = 0; j < SDL_arraysize(formats); ++j) {
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yuv1_pitch = CalculateYUVPitch(formats[i], pattern->w) + extra_pitch;
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yuv2_pitch = CalculateYUVPitch(formats[j], pattern->w) + extra_pitch;
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if (SDL_ConvertPixels(pattern->w, pattern->h, pattern->format->format, pattern->pixels, pattern->pitch, formats[i], yuv1, yuv1_pitch) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(pattern->format->format), SDL_GetPixelFormatName(formats[i]), SDL_GetError());
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goto done;
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}
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if (SDL_ConvertPixels(pattern->w, pattern->h, formats[i], yuv1, yuv1_pitch, formats[j], yuv2, yuv2_pitch) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(formats[i]), SDL_GetPixelFormatName(formats[j]), SDL_GetError());
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goto done;
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}
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if (!verify_yuv_data(formats[j], yuv2, yuv2_pitch, pattern)) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed conversion from %s to %s\n", SDL_GetPixelFormatName(formats[i]), SDL_GetPixelFormatName(formats[j]));
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goto done;
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}
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}
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}
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/* Verify conversion between YUV formats in-place */
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for (i = 0; i < SDL_arraysize(formats); ++i) {
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for (j = 0; j < SDL_arraysize(formats); ++j) {
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if (is_packed_yuv_format(formats[i]) != is_packed_yuv_format(formats[j])) {
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/* Can't change plane vs packed pixel layout in-place */
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continue;
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}
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yuv1_pitch = CalculateYUVPitch(formats[i], pattern->w) + extra_pitch;
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yuv2_pitch = CalculateYUVPitch(formats[j], pattern->w) + extra_pitch;
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if (SDL_ConvertPixels(pattern->w, pattern->h, pattern->format->format, pattern->pixels, pattern->pitch, formats[i], yuv1, yuv1_pitch) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(pattern->format->format), SDL_GetPixelFormatName(formats[i]), SDL_GetError());
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goto done;
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}
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if (SDL_ConvertPixels(pattern->w, pattern->h, formats[i], yuv1, yuv1_pitch, formats[j], yuv1, yuv2_pitch) < 0) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't convert %s to %s: %s\n", SDL_GetPixelFormatName(formats[i]), SDL_GetPixelFormatName(formats[j]), SDL_GetError());
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goto done;
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}
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if (!verify_yuv_data(formats[j], yuv1, yuv2_pitch, pattern)) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Failed conversion from %s to %s\n", SDL_GetPixelFormatName(formats[i]), SDL_GetPixelFormatName(formats[j]));
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goto done;
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}
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}
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}
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result = 0;
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done:
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SDL_free(yuv1);
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SDL_free(yuv2);
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SDL_FreeSurface(pattern);
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return result;
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}
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int
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main(int argc, char **argv)
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{
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struct {
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SDL_bool enable_intrinsics;
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int pattern_size;
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int extra_pitch;
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} automated_test_params[] = {
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/* Test: even width and height */
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{ SDL_FALSE, 2, 0 },
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{ SDL_FALSE, 4, 0 },
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/* Test: odd width and height */
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{ SDL_FALSE, 1, 0 },
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{ SDL_FALSE, 3, 0 },
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/* Test: even width and height, extra pitch */
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{ SDL_FALSE, 2, 3 },
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{ SDL_FALSE, 4, 3 },
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/* Test: odd width and height, extra pitch */
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{ SDL_FALSE, 1, 3 },
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{ SDL_FALSE, 3, 3 },
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/* Test: even width and height with intrinsics */
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{ SDL_TRUE, 32, 0 },
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/* Test: odd width and height with intrinsics */
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{ SDL_TRUE, 33, 0 },
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{ SDL_TRUE, 37, 0 },
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/* Test: even width and height with intrinsics, extra pitch */
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{ SDL_TRUE, 32, 3 },
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/* Test: odd width and height with intrinsics, extra pitch */
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{ SDL_TRUE, 33, 3 },
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{ SDL_TRUE, 37, 3 },
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};
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int arg = 1;
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const char *filename;
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SDL_Surface *original;
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SDL_Surface *converted;
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SDL_Window *window;
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SDL_Renderer *renderer;
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SDL_Texture *output[3];
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const char *titles[3] = { "ORIGINAL", "SOFTWARE", "HARDWARE" };
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char title[128];
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const char *yuv_name;
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const char *yuv_mode;
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Uint32 rgb_format = SDL_PIXELFORMAT_RGBX8888;
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Uint32 yuv_format = SDL_PIXELFORMAT_YV12;
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int current = 0;
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int pitch;
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Uint8 *raw_yuv;
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Uint32 then, now, i, iterations = 100;
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SDL_bool should_run_automated_tests = SDL_FALSE;
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while (argv[arg] && *argv[arg] == '-') {
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if (SDL_strcmp(argv[arg], "--jpeg") == 0) {
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SDL_SetYUVConversionMode(SDL_YUV_CONVERSION_JPEG);
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} else if (SDL_strcmp(argv[arg], "--bt601") == 0) {
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SDL_SetYUVConversionMode(SDL_YUV_CONVERSION_BT601);
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} else if (SDL_strcmp(argv[arg], "--bt709") == 0) {
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SDL_SetYUVConversionMode(SDL_YUV_CONVERSION_BT709);
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} else if (SDL_strcmp(argv[arg], "--auto") == 0) {
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SDL_SetYUVConversionMode(SDL_YUV_CONVERSION_AUTOMATIC);
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} else if (SDL_strcmp(argv[arg], "--yv12") == 0) {
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yuv_format = SDL_PIXELFORMAT_YV12;
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} else if (SDL_strcmp(argv[arg], "--iyuv") == 0) {
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yuv_format = SDL_PIXELFORMAT_IYUV;
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} else if (SDL_strcmp(argv[arg], "--yuy2") == 0) {
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yuv_format = SDL_PIXELFORMAT_YUY2;
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} else if (SDL_strcmp(argv[arg], "--uyvy") == 0) {
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yuv_format = SDL_PIXELFORMAT_UYVY;
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} else if (SDL_strcmp(argv[arg], "--yvyu") == 0) {
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yuv_format = SDL_PIXELFORMAT_YVYU;
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} else if (SDL_strcmp(argv[arg], "--nv12") == 0) {
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yuv_format = SDL_PIXELFORMAT_NV12;
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} else if (SDL_strcmp(argv[arg], "--nv21") == 0) {
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yuv_format = SDL_PIXELFORMAT_NV21;
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} else if (SDL_strcmp(argv[arg], "--rgb555") == 0) {
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rgb_format = SDL_PIXELFORMAT_RGB555;
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} else if (SDL_strcmp(argv[arg], "--rgb565") == 0) {
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rgb_format = SDL_PIXELFORMAT_RGB565;
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} else if (SDL_strcmp(argv[arg], "--rgb24") == 0) {
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rgb_format = SDL_PIXELFORMAT_RGB24;
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} else if (SDL_strcmp(argv[arg], "--argb") == 0) {
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rgb_format = SDL_PIXELFORMAT_ARGB8888;
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} else if (SDL_strcmp(argv[arg], "--abgr") == 0) {
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rgb_format = SDL_PIXELFORMAT_ABGR8888;
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} else if (SDL_strcmp(argv[arg], "--rgba") == 0) {
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rgb_format = SDL_PIXELFORMAT_RGBA8888;
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} else if (SDL_strcmp(argv[arg], "--bgra") == 0) {
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rgb_format = SDL_PIXELFORMAT_BGRA8888;
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} else if (SDL_strcmp(argv[arg], "--automated") == 0) {
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should_run_automated_tests = SDL_TRUE;
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} else {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Usage: %s [--jpeg|--bt601|-bt709|--auto] [--yv12|--iyuv|--yuy2|--uyvy|--yvyu|--nv12|--nv21] [--rgb555|--rgb565|--rgb24|--argb|--abgr|--rgba|--bgra] [image_filename]\n", argv[0]);
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return 1;
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}
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++arg;
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}
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/* Run automated tests */
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if (should_run_automated_tests) {
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for (i = 0; i < SDL_arraysize(automated_test_params); ++i) {
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SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "Running automated test, pattern size %d, extra pitch %d, intrinsics %s\n",
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automated_test_params[i].pattern_size,
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automated_test_params[i].extra_pitch,
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automated_test_params[i].enable_intrinsics ? "enabled" : "disabled");
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if (run_automated_tests(automated_test_params[i].pattern_size, automated_test_params[i].extra_pitch) < 0) {
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return 2;
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}
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}
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return 0;
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}
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if (argv[arg]) {
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filename = argv[arg];
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} else {
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filename = "testyuv.bmp";
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}
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original = SDL_ConvertSurfaceFormat(SDL_LoadBMP(filename), SDL_PIXELFORMAT_RGB24, 0);
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if (!original) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s\n", filename, SDL_GetError());
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return 3;
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}
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raw_yuv = SDL_calloc(1, MAX_YUV_SURFACE_SIZE(original->w, original->h, 0));
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ConvertRGBtoYUV(yuv_format, original->pixels, original->pitch, raw_yuv, original->w, original->h,
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SDL_GetYUVConversionModeForResolution(original->w, original->h),
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0, 100);
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pitch = CalculateYUVPitch(yuv_format, original->w);
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converted = SDL_CreateRGBSurfaceWithFormat(0, original->w, original->h, 0, rgb_format);
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if (!converted) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create converted surface: %s\n", SDL_GetError());
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return 3;
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}
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then = SDL_GetTicks();
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for ( i = 0; i < iterations; ++i ) {
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SDL_ConvertPixels(original->w, original->h, yuv_format, raw_yuv, pitch, rgb_format, converted->pixels, converted->pitch);
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}
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now = SDL_GetTicks();
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SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "%d iterations in %d ms, %.2fms each\n", iterations, (now - then), (float)(now - then)/iterations);
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window = SDL_CreateWindow("YUV test",
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SDL_WINDOWPOS_UNDEFINED,
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SDL_WINDOWPOS_UNDEFINED,
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original->w, original->h,
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0);
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if (!window) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s\n", SDL_GetError());
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return 4;
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}
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renderer = SDL_CreateRenderer(window, -1, 0);
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if (!renderer) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s\n", SDL_GetError());
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return 4;
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}
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output[0] = SDL_CreateTextureFromSurface(renderer, original);
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output[1] = SDL_CreateTextureFromSurface(renderer, converted);
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output[2] = SDL_CreateTexture(renderer, yuv_format, SDL_TEXTUREACCESS_STREAMING, original->w, original->h);
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if (!output[0] || !output[1] || !output[2]) {
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SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s\n", SDL_GetError());
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return 5;
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}
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SDL_UpdateTexture(output[2], NULL, raw_yuv, pitch);
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yuv_name = SDL_GetPixelFormatName(yuv_format);
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if (SDL_strncmp(yuv_name, "SDL_PIXELFORMAT_", 16) == 0) {
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yuv_name += 16;
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}
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switch (SDL_GetYUVConversionModeForResolution(original->w, original->h)) {
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case SDL_YUV_CONVERSION_JPEG:
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yuv_mode = "JPEG";
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break;
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case SDL_YUV_CONVERSION_BT601:
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yuv_mode = "BT.601";
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break;
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case SDL_YUV_CONVERSION_BT709:
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yuv_mode = "BT.709";
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break;
|
|
default:
|
|
yuv_mode = "UNKNOWN";
|
|
break;
|
|
}
|
|
|
|
{ int done = 0;
|
|
while ( !done )
|
|
{
|
|
SDL_Event event;
|
|
while (SDL_PollEvent(&event) > 0) {
|
|
if (event.type == SDL_QUIT) {
|
|
done = 1;
|
|
}
|
|
if (event.type == SDL_KEYDOWN) {
|
|
if (event.key.keysym.sym == SDLK_ESCAPE) {
|
|
done = 1;
|
|
} else if (event.key.keysym.sym == SDLK_LEFT) {
|
|
--current;
|
|
} else if (event.key.keysym.sym == SDLK_RIGHT) {
|
|
++current;
|
|
}
|
|
}
|
|
if (event.type == SDL_MOUSEBUTTONDOWN) {
|
|
if (event.button.x < (original->w/2)) {
|
|
--current;
|
|
} else {
|
|
++current;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Handle wrapping */
|
|
if (current < 0) {
|
|
current += SDL_arraysize(output);
|
|
}
|
|
if (current >= SDL_arraysize(output)) {
|
|
current -= SDL_arraysize(output);
|
|
}
|
|
|
|
SDL_RenderClear(renderer);
|
|
SDL_RenderCopy(renderer, output[current], NULL, NULL);
|
|
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
|
|
if (current == 0) {
|
|
SDLTest_DrawString(renderer, 4, 4, titles[current]);
|
|
} else {
|
|
SDL_snprintf(title, sizeof(title), "%s %s %s", titles[current], yuv_name, yuv_mode);
|
|
SDLTest_DrawString(renderer, 4, 4, title);
|
|
}
|
|
SDL_RenderPresent(renderer);
|
|
SDL_Delay(10);
|
|
}
|
|
}
|
|
SDL_Quit();
|
|
return 0;
|
|
}
|
|
|
|
/* vi: set ts=4 sw=4 expandtab: */
|