--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/source/fitz/pixmap-imp.h	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,62 @@
+// Copyright (C) 2004-2024 Artifex Software, Inc.
+//
+// This file is part of MuPDF.
+//
+// MuPDF is free software: you can redistribute it and/or modify it under the
+// terms of the GNU Affero General Public License as published by the Free
+// Software Foundation, either version 3 of the License, or (at your option)
+// any later version.
+//
+// MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
+// WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+// FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+// details.
+//
+// You should have received a copy of the GNU Affero General Public License
+// along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
+//
+// Alternative licensing terms are available from the licensor.
+// For commercial licensing, see <https://www.artifex.com/> or contact
+// Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
+// CA 94129, USA, for further information.
+
+#ifndef FITZ_PIXMAP_IMP_H
+#define FITZ_PIXMAP_IMP_H
+
+void fz_drop_pixmap_imp(fz_context *ctx, fz_storable *pix);
+
+void fz_premultiply_pixmap(fz_context *ctx, fz_pixmap *pix);
+
+typedef struct fz_scale_cache fz_scale_cache;
+
+fz_scale_cache *fz_new_scale_cache(fz_context *ctx);
+void fz_drop_scale_cache(fz_context *ctx, fz_scale_cache *cache);
+fz_pixmap *fz_scale_pixmap_cached(fz_context *ctx, const fz_pixmap *src, float x, float y, float w, float h, const fz_irect *clip, fz_scale_cache *cache_x, fz_scale_cache *cache_y);
+
+void fz_subsample_pixblock(unsigned char *s, int w, int h, int n, int factor, ptrdiff_t stride);
+
+fz_irect fz_pixmap_bbox_no_ctx(const fz_pixmap *src);
+
+void fz_decode_indexed_tile(fz_context *ctx, fz_pixmap *pix, const float *decode, int maxval);
+void fz_unpack_tile(fz_context *ctx, fz_pixmap *dst, unsigned char *src, int n, int depth, size_t stride, int scale);
+
+fz_pixmap *fz_new_pixmap_from_8bpp_data(fz_context *ctx, int x, int y, int w, int h, unsigned char *sp, int span);
+fz_pixmap *fz_new_pixmap_from_1bpp_data(fz_context *ctx, int x, int y, int w, int h, unsigned char *sp, int span);
+fz_pixmap *fz_new_pixmap_from_float_data(fz_context *ctx, fz_colorspace *cs, int w, int h, float *sp);
+
+#ifdef HAVE_VALGRIND
+int fz_valgrind_pixmap(const fz_pixmap *pix);
+#else
+#define fz_valgrind_pixmap(pix) do {} while (0)
+#endif
+
+/*
+	Convert a region of the src pixmap into the dst pixmap
+	via an optional proofing colorspace, prf.
+
+	We assume that we never map from a DeviceN space to another
+	DeviceN space here.
+ */
+fz_pixmap *fz_copy_pixmap_area_converting_seps(fz_context *ctx, fz_pixmap *src, fz_pixmap *dst, fz_colorspace *prf, fz_color_params color_params, fz_default_colorspaces *default_cs);
+
+#endif