testyuv: added comprehensive testing of YUV texture rendering

This tests all supported colorspaces and YUV formats across all available renderers
This commit is contained in:
Sam Lantinga
2025-12-04 10:37:39 -08:00
parent e41bdfafe4
commit 5c7d549267

View File

@@ -362,6 +362,404 @@ done:
return result;
}
static bool create_textures(SDL_Renderer *renderer, SDL_Surface *original, SDL_PixelFormat yuv_format, SDL_PixelFormat rgb_format, bool planar, bool monochrome, int luminance, SDL_Texture *output[3])
{
SDL_Colorspace rgb_colorspace = SDL_COLORSPACE_SRGB;
SDL_Colorspace yuv_colorspace;
Uint8 *raw_yuv = NULL;
int pitch;
SDL_Surface *converted = NULL;
bool result = false;
YUV_CONVERSION_MODE yuv_mode = GetYUVConversionModeForResolution(original->w, original->h);
if (yuv_mode == YUV_CONVERSION_BT2020) {
yuv_format = SDL_PIXELFORMAT_P010;
rgb_format = SDL_PIXELFORMAT_XBGR2101010;
rgb_colorspace = SDL_COLORSPACE_HDR10;
}
yuv_colorspace = GetColorspaceForYUVConversionMode(yuv_mode);
raw_yuv = SDL_calloc(1, MAX_YUV_SURFACE_SIZE(original->w, original->h, 0));
ConvertRGBtoYUV(yuv_format, original->pixels, original->pitch, raw_yuv, original->w, original->h, yuv_mode, monochrome, luminance);
pitch = CalculateYUVPitch(yuv_format, original->w);
converted = SDL_CreateSurface(original->w, original->h, rgb_format);
if (!converted) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create converted surface: %s", SDL_GetError());
goto done;
}
SDL_ConvertPixelsAndColorspace(original->w, original->h, yuv_format, yuv_colorspace, 0, raw_yuv, pitch, rgb_format, rgb_colorspace, 0, converted->pixels, converted->pitch);
output[0] = SDL_CreateTextureFromSurface(renderer, original);
output[1] = SDL_CreateTextureFromSurface(renderer, converted);
SDL_PropertiesID props = SDL_CreateProperties();
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, yuv_colorspace);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER, yuv_format);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER, SDL_TEXTUREACCESS_STREAMING);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER, original->w);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER, original->h);
output[2] = SDL_CreateTextureWithProperties(renderer, props);
SDL_DestroyProperties(props);
if (!output[0] || !output[1] || !output[2]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s", SDL_GetError());
goto done;
}
if (planar && (yuv_format == SDL_PIXELFORMAT_YV12 || yuv_format == SDL_PIXELFORMAT_IYUV)) {
const int Yrows = original->h;
const int UVrows = ((original->h + 1) / 2);
const int src_Ypitch = pitch;
const int src_UVpitch = ((pitch + 1) / 2);
const Uint8 *src_plane0 = (const Uint8 *)raw_yuv;
const Uint8 *src_plane1 = src_plane0 + Yrows * src_Ypitch;
const Uint8 *src_plane2 = src_plane1 + UVrows * src_UVpitch;
const int Ypitch = pitch + 37;
const int UVpitch = ((Ypitch + 1) / 2);
Uint8 *plane0 = (Uint8 *)SDL_calloc(1, Yrows * Ypitch);
Uint8 *plane1 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
Uint8 *plane2 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
int row;
const Uint8 *src;
Uint8 *dst;
if (!plane0 || !plane1 || !plane0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create YUV planes: %s", SDL_GetError());
goto done;
}
src = src_plane0;
dst = plane0;
for (row = 0; row < Yrows; ++row) {
SDL_memcpy(dst, src, src_Ypitch);
src += src_Ypitch;
dst += Ypitch;
}
src = src_plane1;
dst = plane1;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
src = src_plane2;
dst = plane2;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
if (yuv_format == SDL_PIXELFORMAT_YV12) {
SDL_UpdateYUVTexture(output[2], NULL, plane0, Ypitch, plane2, UVpitch, plane1, UVpitch);
} else {
SDL_UpdateYUVTexture(output[2], NULL, plane0, Ypitch, plane1, UVpitch, plane2, UVpitch);
}
SDL_free(plane0);
SDL_free(plane1);
SDL_free(plane2);
} else if (planar && (yuv_format == SDL_PIXELFORMAT_NV12 || yuv_format == SDL_PIXELFORMAT_NV21 || yuv_format == SDL_PIXELFORMAT_P010)) {
const int Yrows = original->h;
const int UVrows = ((original->h + 1) / 2);
const int src_Ypitch = pitch;
const int src_UVpitch = (yuv_format == SDL_PIXELFORMAT_P010) ? ((pitch + 3) & ~3) : ((pitch + 1) & ~1);
const Uint8 *src_plane0 = (const Uint8 *)raw_yuv;
const Uint8 *src_plane1 = src_plane0 + Yrows * src_Ypitch;
const int Ypitch = pitch + 37;
const int UVpitch = ((Ypitch + 1) / 2) * 2;
Uint8 *plane0 = (Uint8 *)SDL_calloc(1, Yrows * Ypitch);
Uint8 *plane1 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
int row;
const Uint8 *src;
Uint8 *dst;
if (!plane0 || !plane1) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create YUV planes: %s", SDL_GetError());
goto done;
}
src = src_plane0;
dst = plane0;
for (row = 0; row < Yrows; ++row) {
SDL_memcpy(dst, src, src_Ypitch);
src += src_Ypitch;
dst += Ypitch;
}
src = src_plane1;
dst = plane1;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
SDL_UpdateNVTexture(output[2], NULL, plane0, Ypitch, plane1, UVpitch);
SDL_free(plane0);
SDL_free(plane1);
} else {
SDL_UpdateTexture(output[2], NULL, raw_yuv, pitch);
}
result = true;
done:
SDL_DestroySurface(converted);
SDL_free(raw_yuv);
return result;
}
static bool has_10bit_texture_format(SDL_Renderer *renderer)
{
const SDL_PixelFormat *texture_formats = (const SDL_PixelFormat *)SDL_GetPointerProperty(SDL_GetRendererProperties(renderer), SDL_PROP_RENDERER_TEXTURE_FORMATS_POINTER, NULL);
if (texture_formats) {
for (int i = 0; texture_formats[i] != SDL_PIXELFORMAT_UNKNOWN; ++i) {
if (SDL_ISPIXELFORMAT_10BIT(texture_formats[i])) {
return true;
}
}
}
return false;
}
static bool check_output(SDL_Renderer *renderer, SDL_Surface *original, SDL_Texture *texture)
{
// Clear to yellow to clearly see unfilled pixels
SDL_SetRenderDrawColor(renderer, 255, 255, 0, SDL_ALPHA_OPAQUE);
SDL_RenderClear(renderer);
SDL_Rect rect = { 0, 0, texture->w, texture->h };
SDL_FRect frect = { 0.0f, 0.0f, (float)texture->w, (float)texture->h };
SDL_RenderTexture(renderer, texture, &frect, &frect);
SDL_Surface *output = SDL_RenderReadPixels(renderer, &rect);
if (!output) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't read pixels: %s", SDL_GetError());
return false;
}
SDL_RenderPresent(renderer);
// Allow some error for colorspace conversion and differences in color depth
const int MAX_ALLOWABLE_ERROR = 4096;
bool result;
if (SDLTest_CompareSurfaces(output, original, MAX_ALLOWABLE_ERROR) == 0) {
result = true;
} else {
result = false;
}
SDL_DestroySurface(output);
return result;
}
static bool run_single_format_test(SDL_Renderer *renderer, SDL_Surface *original, SDL_PixelFormat yuv_format, SDL_PixelFormat rgb_format, bool planar)
{
SDL_Texture *output[3];
bool result = true;
if (!create_textures(renderer, original, yuv_format, rgb_format, planar, false, 100, output)) {
return false;
}
if (!check_output(renderer, original, output[0])) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Original texture didn't match source data, failing");
result = false;
}
if (!check_output(renderer, original, output[1])) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "RGB output didn't match source data, failing");
result = false;
}
if (!check_output(renderer, original, output[2])) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "YUV output didn't match source data, failing");
result = false;
}
for (int i = 0; i < SDL_arraysize(output); ++i) {
SDL_DestroyTexture(output[i]);
}
return result;
}
static bool run_all_format_test(SDL_Window *window, SDL_Surface *original)
{
const SDL_PixelFormat yuv_formats[] = {
SDL_PIXELFORMAT_YV12,
SDL_PIXELFORMAT_IYUV,
SDL_PIXELFORMAT_YUY2,
SDL_PIXELFORMAT_UYVY,
SDL_PIXELFORMAT_YVYU,
SDL_PIXELFORMAT_NV12,
SDL_PIXELFORMAT_NV21
};
const SDL_PixelFormat rgb_formats[] = {
SDL_PIXELFORMAT_XRGB1555,
SDL_PIXELFORMAT_RGB565,
SDL_PIXELFORMAT_RGB24,
SDL_PIXELFORMAT_ABGR8888,
SDL_PIXELFORMAT_RGBA8888,
SDL_PIXELFORMAT_BGRA8888
};
const struct
{
YUV_CONVERSION_MODE mode;
const char *name;
} colorspaces[] = {
{ YUV_CONVERSION_JPEG, "JPEG" },
{ YUV_CONVERSION_BT601, "BT601" },
{ YUV_CONVERSION_BT709, "BT709" },
{ YUV_CONVERSION_BT2020, "BT2020" }
};
bool quit = false;
bool result = true;
for (int i = 0; i < SDL_GetNumRenderDrivers() && !quit; ++i) {
const char *renderer_name = SDL_GetRenderDriver(i);
SDL_Renderer *renderer = SDL_CreateRenderer(window, renderer_name);
if (!renderer) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create %s renderer: %s", renderer_name, SDL_GetError());
result = false;
continue;
}
for (int j = 0; j < SDL_arraysize(colorspaces) && !quit; ++j) {
if (colorspaces[j].mode == YUV_CONVERSION_BT2020 &&
!has_10bit_texture_format(renderer)) {
SDL_Log("Skipping %s %s, unsupported", renderer_name, colorspaces[j].name);
continue;
}
SetYUVConversionMode(colorspaces[j].mode);
for (int m = 0; m < SDL_arraysize(yuv_formats) && !quit; ++m) {
SDL_PixelFormat yuv_format = yuv_formats[m];
for (int n = 0; n < SDL_arraysize(rgb_formats) && !quit; ++n) {
SDL_PixelFormat rgb_format = rgb_formats[n];
SDL_Log("Testing: %s %s %s %s (planar)", renderer_name, colorspaces[j].name, SDL_GetPixelFormatName(yuv_format), SDL_GetPixelFormatName(rgb_format));
result &= run_single_format_test(renderer, original, yuv_format, rgb_format, true);
SDL_Log("Testing: %s %s %s %s (packed)", renderer_name, colorspaces[j].name, SDL_GetPixelFormatName(yuv_format), SDL_GetPixelFormatName(rgb_format));
result &= run_single_format_test(renderer, original, yuv_format, rgb_format, false);
SDL_Event event;
while (SDL_PollEvent(&event)) {
if (event.type == SDL_EVENT_QUIT ||
(event.type == SDL_EVENT_KEY_DOWN && event.key.key == SDLK_ESCAPE)) {
quit = true;
}
}
}
}
}
SDL_DestroyRenderer(renderer);
}
return result;
}
static bool run_interactive(SDL_Window *window, const char *renderer_name, SDL_Surface *original, SDL_PixelFormat yuv_format, SDL_PixelFormat rgb_format, bool planar, bool monochrome, int luminance)
{
const char *titles[3] = { "ORIGINAL", "SOFTWARE", "HARDWARE" };
char title[128];
const char *yuv_mode_name;
YUV_CONVERSION_MODE yuv_mode;
const char *yuv_format_name;
int current = 0;
bool quit = false;
bool result = false;
SDL_Renderer *renderer = SDL_CreateRenderer(window, renderer_name);
if (!renderer) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s", SDL_GetError());
return false;
}
SDL_Texture *output[3];
if (!create_textures(renderer, original, yuv_format, rgb_format, planar, monochrome, luminance, output)) {
goto done;
}
yuv_mode = GetYUVConversionModeForResolution(original->w, original->h);
switch (yuv_mode) {
case YUV_CONVERSION_JPEG:
yuv_mode_name = "JPEG";
break;
case YUV_CONVERSION_BT601:
yuv_mode_name = "BT.601";
break;
case YUV_CONVERSION_BT709:
yuv_mode_name = "BT.709";
break;
case YUV_CONVERSION_BT2020:
yuv_mode_name = "BT.2020";
yuv_format = SDL_PIXELFORMAT_P010;
break;
default:
yuv_mode_name = "UNKNOWN";
break;
}
yuv_format_name = SDL_GetPixelFormatName(yuv_format);
if (SDL_strncmp(yuv_format_name, "SDL_PIXELFORMAT_", 16) == 0) {
yuv_format_name += 16;
}
while (!quit) {
SDL_Event event;
while (SDL_PollEvent(&event) > 0) {
if (event.type == SDL_EVENT_QUIT) {
quit = true;
}
if (event.type == SDL_EVENT_KEY_DOWN) {
if (event.key.key == SDLK_ESCAPE) {
quit = true;
} else if (event.key.key == SDLK_LEFT) {
--current;
} else if (event.key.key == SDLK_RIGHT) {
++current;
}
}
if (event.type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
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_RenderTexture(renderer, output[current], NULL, NULL);
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
if (current == 0) {
SDLTest_DrawString(renderer, 4, 4, titles[current]);
} else {
if (SDL_snprintf(title, sizeof(title), "%s %s %s", titles[current], yuv_format_name, yuv_mode_name) > 0) {
SDLTest_DrawString(renderer, 4, 4, title);
}
}
SDL_RenderPresent(renderer);
SDL_Delay(10);
}
result = true;
done:
for (int i = 0; i < SDL_arraysize(output); ++i) {
SDL_DestroyTexture(output[i]);
}
SDLTest_CleanupTextDrawing();
SDL_DestroyRenderer(renderer);
return result;
}
int main(int argc, char **argv)
{
struct
@@ -397,33 +795,20 @@ int main(int argc, char **argv)
};
char *filename = NULL;
SDL_Surface *original = NULL;
SDL_Surface *converted;
SDL_Surface *png;
SDL_Window *window;
SDL_Surface *png = NULL;
SDL_Window *window = NULL;
const char *renderer_name = NULL;
SDL_Renderer *renderer;
SDL_Texture *output[3];
const char *titles[3] = { "ORIGINAL", "SOFTWARE", "HARDWARE" };
char title[128];
YUV_CONVERSION_MODE yuv_mode;
const char *yuv_mode_name;
Uint32 yuv_format = SDL_PIXELFORMAT_YV12;
const char *yuv_format_name;
SDL_Colorspace yuv_colorspace;
Uint32 rgb_format = SDL_PIXELFORMAT_RGBX8888;
SDL_Colorspace rgb_colorspace = SDL_COLORSPACE_SRGB;
SDL_PropertiesID props;
bool planar = false;
bool monochrome = false;
int luminance = 100;
int current = 0;
int pitch;
Uint8 *raw_yuv;
Uint64 then, now;
int i, iterations = 100;
int i;
bool should_run_automated_tests = false;
bool should_run_colorspace_test = false;
bool should_test_all_formats = false;
SDLTest_CommonState *state;
int result = 0;
/* Initialize test framework */
state = SDLTest_CommonCreateState(argv, 0);
@@ -431,13 +816,16 @@ int main(int argc, char **argv)
return 1;
}
/* Parse commandline */
/* Parse command line */
for (i = 1; i < argc;) {
int consumed;
consumed = SDLTest_CommonArg(state, i);
if (!consumed) {
if (SDL_strcmp(argv[i], "--jpeg") == 0) {
if (SDL_strcmp(argv[i], "--all") == 0) {
should_test_all_formats = true;
consumed = 1;
} else if (SDL_strcmp(argv[i], "--jpeg") == 0) {
SetYUVConversionMode(YUV_CONVERSION_JPEG);
consumed = 1;
} else if (SDL_strcmp(argv[i], "--bt601") == 0) {
@@ -543,17 +931,17 @@ int main(int argc, char **argv)
automated_test_params[i].extra_pitch,
automated_test_params[i].enable_intrinsics ? "enabled" : "disabled");
if (!run_automated_tests(automated_test_params[i].pattern_size, automated_test_params[i].extra_pitch)) {
return 2;
result = 2;
}
}
return 0;
goto done;
}
if (should_run_colorspace_test) {
if (!run_colorspace_test()) {
return 2;
result = 2;
}
return 0;
goto done;
}
filename = GetResourceFilename(filename, "testyuv.png");
@@ -564,232 +952,31 @@ int main(int argc, char **argv)
}
if (!original) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't load %s: %s", filename, SDL_GetError());
return 3;
result = 3;
goto done;
}
yuv_mode = GetYUVConversionModeForResolution(original->w, original->h);
switch (yuv_mode) {
case YUV_CONVERSION_JPEG:
yuv_mode_name = "JPEG";
break;
case YUV_CONVERSION_BT601:
yuv_mode_name = "BT.601";
break;
case YUV_CONVERSION_BT709:
yuv_mode_name = "BT.709";
break;
case YUV_CONVERSION_BT2020:
yuv_mode_name = "BT.2020";
yuv_format = SDL_PIXELFORMAT_P010;
rgb_format = SDL_PIXELFORMAT_XBGR2101010;
rgb_colorspace = SDL_COLORSPACE_HDR10;
break;
default:
yuv_mode_name = "UNKNOWN";
break;
}
yuv_colorspace = GetColorspaceForYUVConversionMode(yuv_mode);
raw_yuv = SDL_calloc(1, MAX_YUV_SURFACE_SIZE(original->w, original->h, 0));
ConvertRGBtoYUV(yuv_format, original->pixels, original->pitch, raw_yuv, original->w, original->h, yuv_mode, monochrome, luminance);
pitch = CalculateYUVPitch(yuv_format, original->w);
converted = SDL_CreateSurface(original->w, original->h, rgb_format);
if (!converted) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create converted surface: %s", SDL_GetError());
return 3;
}
then = SDL_GetTicks();
for (i = 0; i < iterations; ++i) {
SDL_ConvertPixelsAndColorspace(original->w, original->h, yuv_format, yuv_colorspace, 0, raw_yuv, pitch, rgb_format, rgb_colorspace, 0, converted->pixels, converted->pitch);
}
now = SDL_GetTicks();
SDL_LogInfo(SDL_LOG_CATEGORY_APPLICATION, "%d iterations in %" SDL_PRIu64 " ms, %.2fms each", iterations, (now - then), (float)(now - then) / iterations);
window = SDL_CreateWindow("YUV test", original->w, original->h, 0);
if (!window) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create window: %s", SDL_GetError());
return 4;
result = 4;
goto done;
}
renderer = SDL_CreateRenderer(window, renderer_name);
if (!renderer) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create renderer: %s", SDL_GetError());
return 4;
}
output[0] = SDL_CreateTextureFromSurface(renderer, original);
output[1] = SDL_CreateTextureFromSurface(renderer, converted);
props = SDL_CreateProperties();
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_COLORSPACE_NUMBER, yuv_colorspace);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_FORMAT_NUMBER, yuv_format);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_ACCESS_NUMBER, SDL_TEXTUREACCESS_STREAMING);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_WIDTH_NUMBER, original->w);
SDL_SetNumberProperty(props, SDL_PROP_TEXTURE_CREATE_HEIGHT_NUMBER, original->h);
output[2] = SDL_CreateTextureWithProperties(renderer, props);
SDL_DestroyProperties(props);
if (!output[0] || !output[1] || !output[2]) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't set create texture: %s", SDL_GetError());
return 5;
}
if (planar && (yuv_format == SDL_PIXELFORMAT_YV12 || yuv_format == SDL_PIXELFORMAT_IYUV)) {
const int Yrows = original->h;
const int UVrows = ((original->h + 1) / 2);
const int src_Ypitch = pitch;
const int src_UVpitch = ((pitch + 1) / 2);
const Uint8 *src_plane0 = (const Uint8 *)raw_yuv;
const Uint8 *src_plane1 = src_plane0 + Yrows * src_Ypitch;
const Uint8 *src_plane2 = src_plane1 + UVrows * src_UVpitch;
const int Ypitch = pitch + 37;
const int UVpitch = ((Ypitch + 1) / 2);
Uint8 *plane0 = (Uint8 *)SDL_calloc(1, Yrows * Ypitch);
Uint8 *plane1 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
Uint8 *plane2 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
int row;
const Uint8 *src;
Uint8 *dst;
if (!plane0 || !plane1 || !plane0) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create YUV planes: %s", SDL_GetError());
return 6;
if (should_test_all_formats) {
if (!run_all_format_test(window, original)) {
result = 5;
}
src = src_plane0;
dst = plane0;
for (row = 0; row < Yrows; ++row) {
SDL_memcpy(dst, src, src_Ypitch);
src += src_Ypitch;
dst += Ypitch;
}
src = src_plane1;
dst = plane1;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
src = src_plane2;
dst = plane2;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
if (yuv_format == SDL_PIXELFORMAT_YV12) {
SDL_UpdateYUVTexture(output[2], NULL, plane0, Ypitch, plane2, UVpitch, plane1, UVpitch);
} else {
SDL_UpdateYUVTexture(output[2], NULL, plane0, Ypitch, plane1, UVpitch, plane2, UVpitch);
}
SDL_free(plane0);
SDL_free(plane1);
SDL_free(plane2);
} else if (planar && (yuv_format == SDL_PIXELFORMAT_NV12 || yuv_format == SDL_PIXELFORMAT_NV21 || yuv_format == SDL_PIXELFORMAT_P010)) {
const int Yrows = original->h;
const int UVrows = ((original->h + 1) / 2);
const int src_Ypitch = pitch;
const int src_UVpitch = (yuv_format == SDL_PIXELFORMAT_P010) ? ((pitch + 3) & ~3) : ((pitch + 1) & ~1);
const Uint8 *src_plane0 = (const Uint8 *)raw_yuv;
const Uint8 *src_plane1 = src_plane0 + Yrows * src_Ypitch;
const int Ypitch = pitch + 37;
const int UVpitch = ((Ypitch + 1) / 2) * 2;
Uint8 *plane0 = (Uint8 *)SDL_calloc(1, Yrows * Ypitch);
Uint8 *plane1 = (Uint8 *)SDL_calloc(1, UVrows * UVpitch);
int row;
const Uint8 *src;
Uint8 *dst;
if (!plane0 || !plane1) {
SDL_LogError(SDL_LOG_CATEGORY_APPLICATION, "Couldn't create YUV planes: %s", SDL_GetError());
return 6;
}
src = src_plane0;
dst = plane0;
for (row = 0; row < Yrows; ++row) {
SDL_memcpy(dst, src, src_Ypitch);
src += src_Ypitch;
dst += Ypitch;
}
src = src_plane1;
dst = plane1;
for (row = 0; row < UVrows; ++row) {
SDL_memcpy(dst, src, src_UVpitch);
src += src_UVpitch;
dst += UVpitch;
}
SDL_UpdateNVTexture(output[2], NULL, plane0, Ypitch, plane1, UVpitch);
SDL_free(plane0);
SDL_free(plane1);
} else {
SDL_UpdateTexture(output[2], NULL, raw_yuv, pitch);
}
yuv_format_name = SDL_GetPixelFormatName(yuv_format);
if (SDL_strncmp(yuv_format_name, "SDL_PIXELFORMAT_", 16) == 0) {
yuv_format_name += 16;
}
{
int done = 0;
while (!done) {
SDL_Event event;
while (SDL_PollEvent(&event) > 0) {
if (event.type == SDL_EVENT_QUIT) {
done = 1;
}
if (event.type == SDL_EVENT_KEY_DOWN) {
if (event.key.key == SDLK_ESCAPE) {
done = 1;
} else if (event.key.key == SDLK_LEFT) {
--current;
} else if (event.key.key == SDLK_RIGHT) {
++current;
}
}
if (event.type == SDL_EVENT_MOUSE_BUTTON_DOWN) {
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_RenderTexture(renderer, output[current], NULL, NULL);
SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
if (current == 0) {
SDLTest_DrawString(renderer, 4, 4, titles[current]);
} else {
(void)SDL_snprintf(title, sizeof(title), "%s %s %s", titles[current], yuv_format_name, yuv_mode_name);
SDLTest_DrawString(renderer, 4, 4, title);
}
SDL_RenderPresent(renderer);
SDL_Delay(10);
if (!run_interactive(window, renderer_name, original, yuv_format, rgb_format, planar, monochrome, luminance)) {
result = 5;
}
}
SDL_free(raw_yuv);
SDL_free(filename);
done:
SDL_DestroySurface(original);
SDL_DestroySurface(converted);
SDLTest_CleanupTextDrawing();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);
SDL_Quit();
SDLTest_CommonDestroyState(state);
return 0;
return result;
}