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comparison mupdf-source/include/mupdf/fitz/transition.h @ 2:b50eed0cc0ef upstream

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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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1:1d09e1dec1d9 2:b50eed0cc0ef
1 // Copyright (C) 2004-2021 Artifex Software, Inc.
2 //
3 // This file is part of MuPDF.
4 //
5 // MuPDF is free software: you can redistribute it and/or modify it under the
6 // terms of the GNU Affero General Public License as published by the Free
7 // Software Foundation, either version 3 of the License, or (at your option)
8 // any later version.
9 //
10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
13 // details.
14 //
15 // You should have received a copy of the GNU Affero General Public License
16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
17 //
18 // Alternative licensing terms are available from the licensor.
19 // For commercial licensing, see <https://www.artifex.com/> or contact
20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
21 // CA 94129, USA, for further information.
22
23 #ifndef MUPDF_FITZ_TRANSITION_H
24 #define MUPDF_FITZ_TRANSITION_H
25
26 #include "mupdf/fitz/system.h"
27 #include "mupdf/fitz/pixmap.h"
28
29 /* Transition support */
30 enum {
31 FZ_TRANSITION_NONE = 0, /* aka 'R' or 'REPLACE' */
32 FZ_TRANSITION_SPLIT,
33 FZ_TRANSITION_BLINDS,
34 FZ_TRANSITION_BOX,
35 FZ_TRANSITION_WIPE,
36 FZ_TRANSITION_DISSOLVE,
37 FZ_TRANSITION_GLITTER,
38 FZ_TRANSITION_FLY,
39 FZ_TRANSITION_PUSH,
40 FZ_TRANSITION_COVER,
41 FZ_TRANSITION_UNCOVER,
42 FZ_TRANSITION_FADE
43 };
44
45 typedef struct
46 {
47 int type;
48 float duration; /* Effect duration (seconds) */
49
50 /* Parameters controlling the effect */
51 int vertical; /* 0 or 1 */
52 int outwards; /* 0 or 1 */
53 int direction; /* Degrees */
54 /* Potentially more to come */
55
56 /* State variables for use of the transition code */
57 int state0;
58 int state1;
59 } fz_transition;
60
61 /**
62 Generate a frame of a transition.
63
64 tpix: Target pixmap
65 opix: Old pixmap
66 npix: New pixmap
67 time: Position within the transition (0 to 256)
68 trans: Transition details
69
70 Returns 1 if successfully generated a frame.
71
72 Note: Pixmaps must include alpha.
73 */
74 int fz_generate_transition(fz_context *ctx, fz_pixmap *tpix, fz_pixmap *opix, fz_pixmap *npix, int time, fz_transition *trans);
75
76 #endif