mirror of
https://github.com/outbackdingo/UltraGrid.git
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109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
/**
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* Copyright (c) 2011, Martin Srom
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef DXT_ENCODER_H
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#define DXT_ENCODER_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include "dxt_common.h"
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/**
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* DXT encoder structure
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*/
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struct dxt_encoder;
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/**
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* Create DXT encoder
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*
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* @param type
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* @param width
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* @param height
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* @param format
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* @return encoder structure or zero if fails
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*/
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struct dxt_encoder*
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dxt_encoder_create(enum dxt_type type, int width, int height, enum dxt_format format, int legacy);
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/**
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* Allocate buffer for compressed image by encoder
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*
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* @param encoder Encoder structure
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* @param image_compressed Pointer to variable where buffer pointer will be placed
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* @param image_compressed_size Pointer to variable where compressed image data size will be set
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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dxt_encoder_buffer_allocate(struct dxt_encoder* encoder, unsigned char** image_compressed, int* image_compressed_size);
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/**
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* Compress image by DXT encoder
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*
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* @param encoder Encoder structure
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* @param image Image data
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* @param image_compressed Pointer to buffer where compressed image data will be placed
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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dxt_encoder_compress(struct dxt_encoder* encoder, DXT_IMAGE_TYPE* image, unsigned char* image_compressed);
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/**
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* Compress image by DXT encoder
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*
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* @param encoder Encoder structure
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* @param tex texture index
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* @param image_compressed Pointer to buffer where compressed image data will be placed
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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dxt_encoder_compress_texture(struct dxt_encoder* encoder, int texture, unsigned char* image_compressed);
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/**
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* Free buffer for compressed image
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*
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* @param image_compressed Pointer to buffer where compressed image data are stored
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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dxt_encoder_buffer_free(unsigned char* image_compressed);
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/**
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* Destroy DXT encoder
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*
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* @param encoder Encoder structure
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* @return 0 if succeeds, otherwise nonzero
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*/
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int
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dxt_encoder_destroy(struct dxt_encoder* encoder);
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#ifdef __cplusplus
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}
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#endif
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#endif // DXT_ENCODER_H
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