Mercurial > hgrepos > Python2 > PyMuPDF

annotate mupdf-source/platform/java/jni/android/androidimage.c @ 5:710d30cd138a

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author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 12:32:08 +0200
parents b50eed0cc0ef
children
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b50eed0cc0ef ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4.
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1 // Copyright (C) 2004-2021 Artifex Software, Inc.
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2 //
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3 // This file is part of MuPDF.
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4 //
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5 // MuPDF is free software: you can redistribute it and/or modify it under the
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6 // terms of the GNU Affero General Public License as published by the Free
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7 // Software Foundation, either version 3 of the License, or (at your option)
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8 // any later version.
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9 //
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10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
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11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
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13 // details.
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14 //
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15 // You should have received a copy of the GNU Affero General Public License
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16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
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17 //
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18 // Alternative licensing terms are available from the licensor.
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19 // For commercial licensing, see <https://www.artifex.com/> or contact
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20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
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21 // CA 94129, USA, for further information.
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22
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23 /* AndroidImage interface */
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24
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25 JNIEXPORT jlong JNICALL
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26 FUN(AndroidImage_newImageFromBitmap)(JNIEnv *env, jobject self, jobject jbitmap, jlong jmask)
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27 {
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28 fz_context *ctx = get_context(env);
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29 fz_image *mask = CAST(fz_image *, jmask);
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30 fz_image *image = NULL;
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31 fz_pixmap *pixmap = NULL;
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32 AndroidBitmapInfo info;
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33 void *pixels;
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34 int ret;
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35
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36 if (!ctx) return 0;
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37 if (!jbitmap) jni_throw_arg(env, "bitmap must not be null");
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38
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39 if (mask && mask->mask)
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40 jni_throw_run(env, "new Image failed as mask cannot be masked");
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41 if ((ret = AndroidBitmap_getInfo(env, jbitmap, &info)) != ANDROID_BITMAP_RESULT_SUCCESS)
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42 jni_throw_run(env, "new Image failed to get bitmap info");
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43 if (info.format != ANDROID_BITMAP_FORMAT_RGBA_8888)
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44 jni_throw_run(env, "new Image failed as bitmap format is not RGBA_8888");
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45 if (info.stride != info.width)
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46 jni_throw_run(env, "new Image failed as bitmap width != stride");
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47
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48 fz_var(pixmap);
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49
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50 fz_try(ctx)
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51 {
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52 int ret;
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53 int phase = 0;
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54 size_t size = info.width * info.height * 4;
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55 pixmap = fz_new_pixmap(ctx, fz_device_rgb(ctx), info.width, info.height, NULL, 1);
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56 while (1)
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57 {
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58 ret = AndroidBitmap_lockPixels(env, jbitmap, (void **)&pixels);
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59 if (ret == ANDROID_BITMAP_RESULT_SUCCESS)
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60 break;
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61 if (!fz_store_scavenge_external(ctx, size, &phase))
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62 break; /* Failed to free any */
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63 }
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64 if (ret != ANDROID_BITMAP_RESULT_SUCCESS)
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65 fz_throw(ctx, FZ_ERROR_GENERIC, "bitmap lock failed in new Image");
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66 memcpy(pixmap->samples, pixels, info.width * info.height * 4);
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67 if (AndroidBitmap_unlockPixels(env, jbitmap) != ANDROID_BITMAP_RESULT_SUCCESS)
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68 fz_throw(ctx, FZ_ERROR_GENERIC, "Bitmap unlock failed in new Image");
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69 image = fz_new_image_from_pixmap(ctx, fz_keep_pixmap(ctx, pixmap), fz_keep_image(ctx, mask));
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70 }
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71 fz_always(ctx)
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72 fz_drop_pixmap(ctx, pixmap);
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73 fz_catch(ctx)
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74 jni_rethrow(env, ctx);
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75
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76 return jlong_cast(image);
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77 }