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37 lines
1.4 KiB
37 lines
1.4 KiB
diff --git a/PIL/Image.py b/PIL/Image.py |
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index cafc5a2..794ee49 100644 |
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--- a/PIL/Image.py |
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+++ b/PIL/Image.py |
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@@ -718,7 +718,7 @@ class Image: |
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if self.mode == "L" and mode == "RGBA" and "transparency" in self.info: |
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from PIL import ImagePalette |
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self.mode = "P" |
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- bytePalette = bytes([i//3 for i in range(768)]) |
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+ bytePalette = bytes(bytearray([i//3 for i in range(768)])) |
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self.palette = ImagePalette.raw("RGB", bytePalette) |
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self.palette.dirty = 1 |
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self.load() |
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diff --git a/_imaging.c b/_imaging.c |
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index 2ee7eef..6ec7346 100644 |
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--- a/_imaging.c |
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+++ b/_imaging.c |
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@@ -286,6 +286,7 @@ static const char* wrong_mode = "unrecognized image mode"; |
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static const char* wrong_raw_mode = "unrecognized raw mode"; |
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static const char* outside_image = "image index out of range"; |
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static const char* outside_palette = "palette index out of range"; |
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+static const char* wrong_palette_size = "invalid palette size"; |
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static const char* no_palette = "image has no palette"; |
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static const char* readonly = "image is readonly"; |
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/* static const char* no_content = "image has no content"; */ |
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@@ -1412,6 +1413,11 @@ _putpalette(ImagingObject* self, PyObject* args) |
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return NULL; |
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} |
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+ if ( palettesize * 8 / bits > 256) { |
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+ PyErr_SetString(PyExc_ValueError, wrong_palette_size); |
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+ return NULL; |
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+ } |
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+ |
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ImagingPaletteDelete(self->image->palette); |
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strcpy(self->image->mode, "P");
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