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并改为使用修改工程配置的方法解决编译问题。 目的是后续升级 jbig2dec 时直接使用上游新代码覆盖即可，无需再合并代码。 jbig2dec 原始代码来源为： https://github.com/ArtifexSoftware/jbig2dec/tree/a5b9b7cd7b9ed349964eb89883c4b22c410b3398 操作步骤： 将 jbig2dec 原始代码中所有的 .h 覆盖到 JBig2/include/ 目录； 将 .c 文件覆盖到 JBig2/src/ 目录；除了 getopt.c 和 getopt1.c 两个多出来的文件未拷贝。 覆盖后这些文件撤销了之前为解决编译问题而修改的代码。 对于 Visual Studio 的编译错误： Error C4146 unary minus operator applied to unsigned type, result still unsigned 解决方式为，在 Visual Studio 的 jbig2 Property Pages -> Configuration Properties -> C/C++ -> Command Line -> Additional Options 增加 -w24146 来解决。 Release 和 Debug 都增加。
43 lines
1.5 KiB
C
43 lines
1.5 KiB
C
/* Copyright (C) 2001-2021 Artifex Software, Inc.
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All Rights Reserved.
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This software is provided AS-IS with no warranty, either express or
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implied.
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This software is distributed under license and may not be copied,
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modified or distributed except as expressly authorized under the terms
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of the license contained in the file LICENSE in this distribution.
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Refer to licensing information at http://www.artifex.com or contact
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Artifex Software, Inc., 1305 Grant Avenue - Suite 200, Novato,
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CA 94945, U.S.A., +1(415)492-9861, for further information.
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*/
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/*
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jbig2dec
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*/
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#ifndef _JBIG2_IMAGE_H
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#define _JBIG2_IMAGE_H
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typedef enum {
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JBIG2_COMPOSE_OR = 0,
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JBIG2_COMPOSE_AND = 1,
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JBIG2_COMPOSE_XOR = 2,
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JBIG2_COMPOSE_XNOR = 3,
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JBIG2_COMPOSE_REPLACE = 4
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} Jbig2ComposeOp;
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Jbig2Image *jbig2_image_new(Jbig2Ctx *ctx, uint32_t width, uint32_t height);
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void jbig2_image_release(Jbig2Ctx *ctx, Jbig2Image *image);
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Jbig2Image *jbig2_image_reference(Jbig2Ctx *ctx, Jbig2Image *image);
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void jbig2_image_free(Jbig2Ctx *ctx, Jbig2Image *image);
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void jbig2_image_clear(Jbig2Ctx *ctx, Jbig2Image *image, int value);
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Jbig2Image *jbig2_image_resize(Jbig2Ctx *ctx, Jbig2Image *image, uint32_t width, uint32_t height, int value);
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int jbig2_image_compose(Jbig2Ctx *ctx, Jbig2Image *dst, Jbig2Image *src, int x, int y, Jbig2ComposeOp op);
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int jbig2_image_get_pixel(Jbig2Image *image, int x, int y);
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void jbig2_image_set_pixel(Jbig2Image *image, int x, int y, bool value);
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#endif /* _JBIG2_IMAGE_H */
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