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testyuv: added --monochrome and --luminance options for interactive mode

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Sam Lantinga
2024-03-01 02:42:18 -08:00
parent 991ad27de8
commit 47be24d225
2 changed files with 14 additions and 5 deletions
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8
test/testyuv_cvt.c
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@@ -129,9 +129,9 @@ static void RGBtoYUV(const Uint8 *rgb, int *yuv, YUV_CONVERSION_MODE mode, int m
U = clip3(0, SDL_powf(2.0f, M) - 1, SDL_floorf(SDL_powf(2.0f, (M - 8)) * (112.0f * (B - L) / ((1.0f - Kb) * S) + 128) + 0.5f));
V = clip3(0, SDL_powf(2.0f, M) - 1, SDL_floorf(SDL_powf(2.0f, (M - 8)) * (112.0f * (R - L) / ((1.0f - Kr) * S) + 128) + 0.5f));
yuv[0] = (Uint8)Y;
yuv[1] = (Uint8)U;
yuv[2] = (Uint8)V;
yuv[0] = (int)Y;
yuv[1] = (int)U;
yuv[2] = (int)V;
if (monochrome) {
yuv[1] = 128;
@@ -139,7 +139,7 @@ static void RGBtoYUV(const Uint8 *rgb, int *yuv, YUV_CONVERSION_MODE mode, int m
}
if (luminance != 100) {
yuv[0] = (Uint8)SDL_roundf(yuv[0] * (luminance / 100.0f));
yuv[0] = (int)SDL_roundf(yuv[0] * (luminance / 100.0f));
if (yuv[0] > 255) {
yuv[0] = 255;
}