diff mupdf-source/platform/java/jni/android/androidimage.c @ 2:b50eed0cc0ef upstream

ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/platform/java/jni/android/androidimage.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,77 @@
+// Copyright (C) 2004-2021 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.
+
+/* AndroidImage interface */
+
+JNIEXPORT jlong JNICALL
+FUN(AndroidImage_newImageFromBitmap)(JNIEnv *env, jobject self, jobject jbitmap, jlong jmask)
+{
+	fz_context *ctx = get_context(env);
+	fz_image *mask = CAST(fz_image *, jmask);
+	fz_image *image = NULL;
+	fz_pixmap *pixmap = NULL;
+	AndroidBitmapInfo info;
+	void *pixels;
+	int ret;
+
+	if (!ctx) return 0;
+	if (!jbitmap) jni_throw_arg(env, "bitmap must not be null");
+
+	if (mask && mask->mask)
+		jni_throw_run(env, "new Image failed as mask cannot be masked");
+	if ((ret = AndroidBitmap_getInfo(env, jbitmap, &info)) != ANDROID_BITMAP_RESULT_SUCCESS)
+		jni_throw_run(env, "new Image failed to get bitmap info");
+	if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888)
+		jni_throw_run(env, "new Image failed as bitmap format is not RGBA_8888");
+	if (info.stride != info.width)
+		jni_throw_run(env, "new Image failed as bitmap width != stride");
+
+	fz_var(pixmap);
+
+	fz_try(ctx)
+	{
+		int ret;
+		int phase = 0;
+		size_t size = info.width * info.height * 4;
+		pixmap = fz_new_pixmap(ctx, fz_device_rgb(ctx), info.width, info.height, NULL, 1);
+		while (1)
+		{
+			ret = AndroidBitmap_lockPixels(env, jbitmap, (void **)&pixels);
+			if (ret == ANDROID_BITMAP_RESULT_SUCCESS)
+				break;
+			if (!fz_store_scavenge_external(ctx, size, &phase))
+				break; /* Failed to free any */
+		}
+		if (ret != ANDROID_BITMAP_RESULT_SUCCESS)
+			fz_throw(ctx, FZ_ERROR_GENERIC, "bitmap lock failed in new Image");
+		memcpy(pixmap->samples, pixels, info.width * info.height * 4);
+		if (AndroidBitmap_unlockPixels(env, jbitmap) != ANDROID_BITMAP_RESULT_SUCCESS)
+			fz_throw(ctx, FZ_ERROR_GENERIC, "Bitmap unlock failed in new Image");
+		image = fz_new_image_from_pixmap(ctx, fz_keep_pixmap(ctx, pixmap), fz_keep_image(ctx, mask));
+	}
+	fz_always(ctx)
+		fz_drop_pixmap(ctx, pixmap);
+	fz_catch(ctx)
+		jni_rethrow(env, ctx);
+
+	return jlong_cast(image);
+}