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Added CMYK to RGB unpacker #7310

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merged 3 commits into from
Oct 6, 2023
Merged

Added CMYK to RGB unpacker #7310

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00cec60
Added CMYK to RGB unpacker
radarhere Jul 29, 2023
787daa9
Merge branch 'main' into cmyk2rgb
radarhere Oct 6, 2023
b8c3065
Include CMYK to RGB convert as unpacker
radarhere Oct 6, 2023
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4 changes: 4 additions & 0 deletions Tests/test_lib_pack.py
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Original file line number Diff line number Diff line change
Expand Up @@ -340,6 +340,10 @@ def test_RGB(self):
self.assert_unpack("RGB", "G;16N", 2, (0, 1, 0), (0, 3, 0), (0, 5, 0))
self.assert_unpack("RGB", "B;16N", 2, (0, 0, 1), (0, 0, 3), (0, 0, 5))

self.assert_unpack(
"RGB", "CMYK", 4, (250, 249, 248), (242, 241, 240), (234, 233, 233)
)

def test_RGBA(self):
self.assert_unpack("RGBA", "LA", 2, (1, 1, 1, 2), (3, 3, 3, 4), (5, 5, 5, 6))
self.assert_unpack(
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2 changes: 1 addition & 1 deletion src/libImaging/Convert.c
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Expand Up @@ -564,7 +564,7 @@ rgb2cmyk(UINT8 *out, const UINT8 *in, int xsize) {
}
}

static void
void
cmyk2rgb(UINT8 *out, const UINT8 *in, int xsize) {
int x, nk, tmp;
for (x = 0; x < xsize; x++) {
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2 changes: 2 additions & 0 deletions src/libImaging/Convert.h
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@@ -0,0 +1,2 @@
extern void
cmyk2rgb(UINT8 *out, const UINT8 *in, int xsize);
2 changes: 2 additions & 0 deletions src/libImaging/Unpack.c
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Expand Up @@ -31,6 +31,7 @@
*/

#include "Imaging.h"
#include "Convert.h"

#define R 0
#define G 1
Expand Down Expand Up @@ -1589,6 +1590,7 @@ static struct {
{"RGB", "R;16B", 16, band016B},
{"RGB", "G;16B", 16, band116B},
{"RGB", "B;16B", 16, band216B},
{"RGB", "CMYK", 32, cmyk2rgb},

/* true colour w. alpha */
{"RGBA", "LA", 16, unpackRGBALA},
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