Fix T82785: Setting Image.alpha_mode clears generated image data
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@ -128,6 +128,17 @@ static void rna_Image_colormanage_update(Main *bmain, Scene *UNUSED(scene), Poin
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WM_main_add_notifier(NC_IMAGE | NA_EDITED, &ima->id);
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}
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static void rna_Image_alpha_mode_update(Main *bmain, Scene *scene, PointerRNA *ptr)
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{
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Image *ima = (Image *)ptr->owner_id;
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/* When operating on a generated image, avoid re-generating when changing the alpha-mode
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* as it doesn't impact generated images, causing them to reload pixel data, see T82785. */
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if (ima->source == IMA_SRC_GENERATED) {
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return;
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}
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rna_Image_colormanage_update(bmain, scene, ptr);
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}
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static void rna_Image_views_format_update(Main *bmain, Scene *scene, PointerRNA *ptr)
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{
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Image *ima = (Image *)ptr->owner_id;
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@ -1133,7 +1144,7 @@ static void rna_def_image(BlenderRNA *brna)
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"Alpha Mode",
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"Representation of alpha in the image file, to convert to and from "
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"when saving and loading the image");
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RNA_def_property_update(prop, NC_IMAGE | ND_DISPLAY, "rna_Image_colormanage_update");
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RNA_def_property_update(prop, NC_IMAGE | ND_DISPLAY, "rna_Image_alpha_mode_update");
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prop = RNA_def_property(srna, "use_half_precision", PROP_BOOLEAN, PROP_NONE);
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RNA_def_property_boolean_negative_sdna(prop, NULL, "flag", IMA_HIGH_BITDEPTH);
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