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testcolorspace: add optional cycling of colorspaces

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This commit is contained in:
Sam Lantinga
2026-07-21 16:42:38 -07:00
parent e10457d52f
commit 0d21a1aa7a
1 changed files with 40 additions and 9 deletions
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49
test/testcolorspace.c
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@@ -25,11 +25,22 @@
static SDL_Window *window;
static SDL_Renderer *renderer;
static const char *renderer_name;
static const char *colorspace_names[] = {
"sRGB",
"linear",
"HDR10"
};
static SDL_Colorspace colorspaces[] = {
SDL_COLORSPACE_SRGB,
SDL_COLORSPACE_SRGB_LINEAR,
SDL_COLORSPACE_HDR10
};
static int colorspace_count = SDL_arraysize(colorspaces);
static int colorspace_index = 0;
static SDL_Colorspace colorspace = SDL_COLORSPACE_SRGB;
static const char *colorspace_name = "sRGB";
static int renderer_count = 0;
static int renderer_index = 0;
static int stage_index = 0;
static float SDR_white_level = 1.0f;
static float HDR_headroom = 1.0f;
@@ -46,6 +57,7 @@ enum
StageHDR10Texture,
StageCount
};
static int stage_index = StageClearBackground;
static void FreeRenderer(void)
{
@@ -58,7 +70,6 @@ static void UpdateHDRState(void)
{
SDL_PropertiesID props;
bool HDR_enabled;
SDL_Colorspace colorspace;
props = SDL_GetWindowProperties(window);
HDR_enabled = SDL_GetBooleanProperty(props, SDL_PROP_WINDOW_HDR_ENABLED_BOOLEAN, false);
@@ -107,10 +118,19 @@ static void NextRenderer( void )
return;
}
#ifdef CYCLE_COLORSPACES
++colorspace_index;
if (colorspace_index == colorspace_count) {
colorspace_index = 0;
}
colorspace = colorspaces[colorspace_index];
colorspace_name = colorspace_names[colorspace_index];
#else
++renderer_index;
if (renderer_index == renderer_count) {
renderer_index = 0;
}
#endif
FreeRenderer();
CreateRenderer();
}
@@ -121,10 +141,19 @@ static void PrevRenderer(void)
return;
}
#ifdef CYCLE_COLORSPACES
--colorspace_index;
if (colorspace_index == -1) {
colorspace_index += colorspace_count;
}
colorspace = colorspaces[colorspace_index];
colorspace_name = colorspace_names[colorspace_index];
#else
--renderer_index;
if (renderer_index == -1) {
renderer_index += renderer_count;
}
#endif
FreeRenderer();
CreateRenderer();
}
@@ -815,13 +844,15 @@ SDL_AppResult SDL_AppInit(void **appstate, int argc, char *argv[])
} else if (SDL_strcmp(argv[i], "--colorspace") == 0) {
if (argv[i + 1]) {
colorspace_name = argv[i + 1];
if (SDL_strcasecmp(colorspace_name, "sRGB") == 0) {
colorspace = SDL_COLORSPACE_SRGB;
} else if (SDL_strcasecmp(colorspace_name, "linear") == 0) {
colorspace = SDL_COLORSPACE_SRGB_LINEAR;
} else if (SDL_strcasecmp(colorspace_name, "HDR10") == 0) {
colorspace = SDL_COLORSPACE_HDR10;
} else {
colorspace = SDL_COLORSPACE_UNKNOWN;
for (int j = 0; j < colorspace_count; ++j) {
if (SDL_strcasecmp(colorspace_name, colorspace_names[j]) == 0) {
colorspace_index = j;
colorspace = colorspaces[j];
break;
}
}
if (colorspace == SDL_COLORSPACE_UNKNOWN) {
SDL_Log("Unknown colorspace %s", argv[i + 1]);
return SDL_APP_FAILURE;
}