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testyuv: added GetColorspaceForYUVConversionMode()

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This commit is contained in:
Sam Lantinga
2024-03-01 02:02:53 -08:00
parent 812e04fb11
commit 991ad27de8
3 changed files with 39 additions and 26 deletions
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28
test/testyuv.c
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@@ -116,11 +116,6 @@ static int run_automated_tests(int pattern_size, int extra_pitch)
SDL_PIXELFORMAT_UYVY, SDL_PIXELFORMAT_UYVY,
SDL_PIXELFORMAT_YVYU SDL_PIXELFORMAT_YVYU
}; };
const SDL_Colorspace colorspaces[] = {
SDL_COLORSPACE_JPEG,
SDL_COLORSPACE_BT601_LIMITED,
SDL_COLORSPACE_BT709_LIMITED
};
int i, j; int i, j;
SDL_Surface *pattern = generate_test_pattern(pattern_size); SDL_Surface *pattern = generate_test_pattern(pattern_size);
const int yuv_len = MAX_YUV_SURFACE_SIZE(pattern->w, pattern->h, extra_pitch); const int yuv_len = MAX_YUV_SURFACE_SIZE(pattern->w, pattern->h, extra_pitch);
@@ -137,8 +132,7 @@ static int run_automated_tests(int pattern_size, int extra_pitch)
} }
mode = GetYUVConversionModeForResolution(pattern->w, pattern->h); mode = GetYUVConversionModeForResolution(pattern->w, pattern->h);
SDL_assert(mode < SDL_arraysize(colorspaces)); colorspace = GetColorspaceForYUVConversionMode(mode);
colorspace = colorspaces[mode];
/* Verify conversion from YUV formats */ /* Verify conversion from YUV formats */
for (i = 0; i < SDL_arraysize(formats); ++i) { for (i = 0; i < SDL_arraysize(formats); ++i) {
@@ -395,36 +389,18 @@ int main(int argc, char **argv)
switch (yuv_mode) { switch (yuv_mode) {
case YUV_CONVERSION_JPEG: case YUV_CONVERSION_JPEG:
yuv_mode_name = "JPEG"; yuv_mode_name = "JPEG";
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_FULL,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break; break;
case YUV_CONVERSION_BT601: case YUV_CONVERSION_BT601:
yuv_mode_name = "BT.601"; yuv_mode_name = "BT.601";
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break; break;
case YUV_CONVERSION_BT709: case YUV_CONVERSION_BT709:
yuv_mode_name = "BT.709"; yuv_mode_name = "BT.709";
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT709,
SDL_MATRIX_COEFFICIENTS_BT709,
SDL_CHROMA_LOCATION_CENTER);
break; break;
default: default:
yuv_mode_name = "UNKNOWN"; yuv_mode_name = "UNKNOWN";
colorspace = SDL_COLORSPACE_UNKNOWN;
break; break;
} }
colorspace = GetColorspaceForYUVConversionMode(yuv_mode);
raw_yuv = SDL_calloc(1, MAX_YUV_SURFACE_SIZE(original->w, original->h, 0)); 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, 0, 100); ConvertRGBtoYUV(yuv_format, original->pixels, original->pitch, raw_yuv, original->w, original->h, yuv_mode, 0, 100);

36
test/testyuv_cvt.c
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@@ -41,6 +41,42 @@ YUV_CONVERSION_MODE GetYUVConversionModeForResolution(int width, int height)
return mode; return mode;
} }
SDL_Colorspace GetColorspaceForYUVConversionMode(YUV_CONVERSION_MODE mode)
{
SDL_Colorspace colorspace;
switch (mode) {
case YUV_CONVERSION_JPEG:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_FULL,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break;
case YUV_CONVERSION_BT601:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT601,
SDL_MATRIX_COEFFICIENTS_BT601,
SDL_CHROMA_LOCATION_CENTER);
break;
case YUV_CONVERSION_BT709:
colorspace = SDL_DEFINE_COLORSPACE(SDL_COLOR_TYPE_YCBCR,
SDL_COLOR_RANGE_LIMITED,
SDL_COLOR_PRIMARIES_BT709,
SDL_TRANSFER_CHARACTERISTICS_BT709,
SDL_MATRIX_COEFFICIENTS_BT709,
SDL_CHROMA_LOCATION_CENTER);
break;
default:
colorspace = SDL_COLORSPACE_UNKNOWN;
break;
}
return colorspace;
}
static float clip3(float x, float y, float z) static float clip3(float x, float y, float z)
{ {
return (z < x) ? x : ((z > y) ? y : z); return (z < x) ? x : ((z > y) ? y : z);

1
test/testyuv_cvt.h
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@@ -22,5 +22,6 @@ typedef enum
extern void SetYUVConversionMode(YUV_CONVERSION_MODE mode); extern void SetYUVConversionMode(YUV_CONVERSION_MODE mode);
extern YUV_CONVERSION_MODE GetYUVConversionModeForResolution(int width, int height); extern YUV_CONVERSION_MODE GetYUVConversionModeForResolution(int width, int height);
extern SDL_Colorspace GetColorspaceForYUVConversionMode(YUV_CONVERSION_MODE mode);
extern SDL_bool ConvertRGBtoYUV(Uint32 format, Uint8 *src, int pitch, Uint8 *out, int w, int h, YUV_CONVERSION_MODE mode, int monochrome, int luminance); extern SDL_bool ConvertRGBtoYUV(Uint32 format, Uint8 *src, int pitch, Uint8 *out, int w, int h, YUV_CONVERSION_MODE mode, int monochrome, int luminance);
extern int CalculateYUVPitch(Uint32 format, int width); extern int CalculateYUVPitch(Uint32 format, int width);