mirror of https://github.com/mgba-emu/mgba.git
56 lines
2.2 KiB
C
56 lines
2.2 KiB
C
/* Copyright (c) 2013-2014 Jeffrey Pfau
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef PNG_IO_H
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#define PNG_IO_H
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#include <mgba-util/common.h>
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CXX_GUARD_START
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#ifdef USE_PNG
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// png.h defines its own version of restrict which conflicts with mGBA's.
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#ifdef restrict
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#undef restrict
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#endif
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#include <png.h>
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struct VFile;
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enum {
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PNG_HEADER_BYTES = 8
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};
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png_structp PNGWriteOpen(struct VFile* source);
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png_infop PNGWriteHeader(png_structp png, unsigned width, unsigned height);
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png_infop PNGWriteHeaderA(png_structp png, unsigned width, unsigned height);
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png_infop PNGWriteHeader8(png_structp png, unsigned width, unsigned height);
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bool PNGWritePalette(png_structp png, png_infop info, const uint32_t* palette, unsigned entries);
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bool PNGWritePixels(png_structp png, unsigned width, unsigned height, unsigned stride, const void* pixels);
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bool PNGWritePixelsA(png_structp png, unsigned width, unsigned height, unsigned stride, const void* pixels);
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bool PNGWritePixels8(png_structp png, unsigned width, unsigned height, unsigned stride, const void* pixels);
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bool PNGWriteCustomChunk(png_structp png, const char* name, size_t size, void* data);
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void PNGWriteClose(png_structp png, png_infop info);
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typedef int (*ChunkHandler)(png_structp, png_unknown_chunkp);
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bool isPNG(struct VFile* source);
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png_structp PNGReadOpen(struct VFile* source, unsigned offset);
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bool PNGInstallChunkHandler(png_structp png, void* context, ChunkHandler handler, const char* chunkName);
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bool PNGReadHeader(png_structp png, png_infop info);
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bool PNGReadPixels(png_structp png, png_infop info, void* pixels, unsigned width, unsigned height, unsigned stride);
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bool PNGReadPixelsA(png_structp png, png_infop info, void* pixels, unsigned width, unsigned height, unsigned stride);
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bool PNGReadPixels8(png_structp png, png_infop info, void* pixels, unsigned width, unsigned height, unsigned stride);
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bool PNGIgnorePixels(png_structp png, png_infop info);
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bool PNGReadFooter(png_structp png, png_infop end);
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void PNGReadClose(png_structp png, png_infop info, png_infop end);
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#endif
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CXX_GUARD_END
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#endif
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