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comparison mupdf-source/thirdparty/lcms2/plugins/threaded/src/threaded_internal.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 //---------------------------------------------------------------------------------
2 //
3 // Little Color Management System, multithreaded extensions
4 // Copyright (c) 1998-2023 Marti Maria Saguer, all rights reserved
5 //
6 // This program is free software: you can redistribute it and/or modify
7 // it under the terms of the GNU General Public License as published by
8 // the Free Software Foundation, either version 3 of the License, or
9 // (at your option) any later version.
10 //
11 // This program is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
15 //
16 // You should have received a copy of the GNU General Public License
17 // along with this program. If not, see <http://www.gnu.org/licenses/>.
18 //
19 //---------------------------------------------------------------------------------
20
21 #ifndef _THREADED_INTERNAL_H
22 #define _THREADED_INTERNAL_H
23
24 #include "lcms2_threaded.h"
25
26 // This plugin requires lcms 2.14 or greater
27 #define REQUIRED_LCMS_VERSION 2140
28
29 // Unused parameter warning suppression
30 #define UNUSED_PARAMETER(x) ((void)x)
31
32 // For testbed
33 #define CMSCHECKPOINT CMSAPI
34
35 // The specification for "inline" is section 6.7.4 of the C99 standard (ISO/IEC 9899:1999).
36 // unfortunately VisualC++ does not conform that
37 #if defined(_MSC_VER) || defined(__BORLANDC__)
38 # define cmsINLINE __inline
39 #else
40 # define cmsINLINE static inline
41 #endif
42
43 // Holds all parameters for a threadable transform fragment
44 typedef struct {
45
46 struct _cmstransform_struct* CMMcargo;
47
48 const void* InputBuffer;
49 void* OutputBuffer;
50
51 cmsUInt32Number PixelsPerLine;
52 cmsUInt32Number LineCount;
53 const cmsStride* Stride;
54
55 } _cmsWorkSlice;
56
57 // Count the number of threads needed for this job
58 cmsUInt32Number _cmsThrCountSlices(struct _cmstransform_struct* CMMcargo, cmsInt32Number MaxWorkers,
59 cmsUInt32Number PixelsPerLine, cmsUInt32Number LineCount,
60 cmsStride* Stride);
61
62 // Split work following several expert rules
63 cmsBool _cmsThrSplitWork(const _cmsWorkSlice* master, cmsInt32Number nslices, _cmsWorkSlice slices[]);
64
65 // Thread primitives
66 cmsHANDLE _cmsThrCreateWorker(cmsContext ContextID, _cmsTransform2Fn worker, _cmsWorkSlice* param);
67 void _cmsThrJoinWorker(cmsContext ContextID, cmsHANDLE hWorker);
68 cmsInt32Number _cmsThrIdealThreadCount(void);
69
70 // The scheduler
71 void _cmsThrScheduler(struct _cmstransform_struct* CMMcargo,
72 const void* InputBuffer,
73 void* OutputBuffer,
74 cmsUInt32Number PixelsPerLine,
75 cmsUInt32Number LineCount,
76 const cmsStride* Stride);
77 #endif
78
79