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Fix shift-sign issue in Convert.c

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Fixes
```
libImaging/Convert.c:513:25: error: signed shift result (0xFF000000) sets the sign bit of the shift expression's type ('int') and becomes negative [-Werror,-Wshift-sign-overflow]
    UINT32 trns = (0xff << 24) | ((b & 0xff) << 16) | ((g & 0xff) << 8) | (r & 0xff);
                   ~~~~ ^  ~~
```
This commit is contained in:
Richard Barnes 2024-02-27 10:49:53 -08:00 committed by GitHub
parent 0fc9b9183f
commit 6fe0d63ef0
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GPG Key ID: B5690EEEBB952194
1 changed files with 2 additions and 2 deletions
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src/libImaging/Convert.c
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@ -507,10 +507,10 @@ rgba2rgb_(UINT8 *out, const UINT8 *in, int xsize) {
static void
rgbT2rgba(UINT8 *out, int xsize, int r, int g, int b) {
#ifdef WORDS_BIGENDIAN
UINT32 trns = ((r & 0xff) << 24) | ((g & 0xff) << 16) | ((b & 0xff) << 8) | 0xff;
UINT32 trns = ((r & 0xffU) << 24) | ((g & 0xffU) << 16) | ((b & 0xffU) << 8) | 0xffU;
UINT32 repl = trns & 0xffffff00;
#else
UINT32 trns = (0xff << 24) | ((b & 0xff) << 16) | ((g & 0xff) << 8) | (r & 0xff);
UINT32 trns = (0xffU << 24) | ((b & 0xffU) << 16) | ((g & 0xffU) << 8) | (r & 0xffU);
UINT32 repl = trns & 0x00ffffff;
#endif