mirror of
https://github.com/webmproject/libwebp.git
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97 lines
2.9 KiB
C
97 lines
2.9 KiB
C
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// Copyright 2016 Google Inc. All Rights Reserved.
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//
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// Use of this source code is governed by a BSD-style license
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// that can be found in the COPYING file in the root of the source
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// tree. An additional intellectual property rights grant can be found
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// in the file PATENTS. All contributing project authors may
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// be found in the AUTHORS file in the root of the source tree.
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// -----------------------------------------------------------------------------
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//
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// All-in-one library to save PNG/JPEG/WebP/TIFF/WIC images.
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//
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// Author: Skal (pascal.massimino@gmail.com)
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#ifndef WEBP_IMAGEIO_IMAGE_ENC_H_
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#define WEBP_IMAGEIO_IMAGE_ENC_H_
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#include <stdio.h>
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#ifdef HAVE_CONFIG_H
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#include "webp/config.h"
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#endif
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#include "webp/types.h"
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#include "webp/decode.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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// Output types
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typedef enum {
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PNG = 0,
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PAM,
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PPM,
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PGM,
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BMP,
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TIFF,
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RAW_YUV,
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ALPHA_PLANE_ONLY, // this is for experimenting only
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// forced colorspace output (for testing, mostly)
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RGB, RGBA, BGR, BGRA, ARGB,
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RGBA_4444, RGB_565,
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rgbA, bgrA, Argb, rgbA_4444,
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YUV, YUVA
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} WebPOutputFileFormat;
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// General all-purpose call.
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// Most formats expect a 'buffer' containing RGBA-like samples, except
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// RAW_YUV, YUV and YUVA formats.
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// If 'out_file_name' is "-", data is saved to stdout.
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// Returns false if an error occurred, true otherwise.
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int WebPSaveImage(const WebPDecBuffer* const buffer,
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WebPOutputFileFormat format, const char* const out_file_name);
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// Save to PNG.
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#ifdef HAVE_WINCODEC_H
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int WebPWritePNG(const char* out_file_name, int use_stdout,
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const struct WebPDecBuffer* const buffer);
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#else
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int WebPWritePNG(FILE* out_file, const WebPDecBuffer* const buffer);
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#endif
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// Save to PPM format (RGB, no alpha)
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int WebPWritePPM(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save to PAM format (= PPM + alpha)
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int WebPWritePAM(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save 16b mode (RGBA4444, RGB565, ...) for debugging purposes.
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int WebPWrite16bAsPGM(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save as BMP
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int WebPWriteBMP(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save as TIFF
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int WebPWriteTIFF(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save the ALPHA plane (only) as a PGM
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int WebPWriteAlphaPlane(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save as YUV samples as PGM format (using IMC4 layout).
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// See: http://www.fourcc.org/yuv.php#IMC4.
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// (very convenient format for viewing the samples, esp. for odd dimensions).
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int WebPWritePGM(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save YUV(A) planes sequentially (raw dump)
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int WebPWriteYUV(FILE* fout, const struct WebPDecBuffer* const buffer);
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// Save 16b mode (RGBA4444, RGB565, ...) as PGM format, for debugging purposes.
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int WebPWrite16bAsPGM(FILE* fout, const struct WebPDecBuffer* const buffer);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // WEBP_IMAGEIO_IMAGE_ENC_H_
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