+++ /dev/null
-/*
- * jlossy.h
- *
- * Copyright (C) 1998, Thomas G. Lane.
- * This file is part of the Independent JPEG Group's software.
- * For conditions of distribution and use, see the accompanying README file.
- *
- * This include file contains common declarations for the lossy (DCT-based)
- * JPEG codec modules.
- */
-
-#ifndef JLOSSY_H
-#define JLOSSY_H
-
-
-/* Lossy-specific compression codec (compressor proper) */
-typedef struct {
- struct jpeg_c_codec pub; /* public fields */
-
-
- /* Coefficient buffer control */
- JMETHOD(void, coef_start_pass, (j_compress_ptr cinfo, J_BUF_MODE pass_mode));
- /* JMETHOD(boolean, coef_compress_data, (j_compress_ptr cinfo,
- JSAMPIMAGE input_buf));*/
-
- /* Pointer to data which is private to coef module */
- void *coef_private;
-
-
- /* Forward DCT (also controls coefficient quantization) */
- JMETHOD(void, fdct_start_pass, (j_compress_ptr cinfo));
- /* perhaps this should be an array??? */
- JMETHOD(void, fdct_forward_DCT, (j_compress_ptr cinfo,
- jpeg_component_info * compptr,
- JSAMPARRAY sample_data, JBLOCKROW coef_blocks,
- JDIMENSION start_row, JDIMENSION start_col,
- JDIMENSION num_blocks));
-
- /* Pointer to data which is private to fdct module */
- void *fdct_private;
-
-
- /* Entropy encoding */
- JMETHOD(boolean, entropy_encode_mcu, (j_compress_ptr cinfo,
- JBLOCKROW *MCU_data));
-
- /* Pointer to data which is private to entropy module */
- void *entropy_private;
-
-} jpeg_lossy_c_codec;
-
-typedef jpeg_lossy_c_codec * j_lossy_c_ptr;
-
-
-
-typedef JMETHOD(void, inverse_DCT_method_ptr,
- (j_decompress_ptr cinfo, jpeg_component_info * compptr,
- JCOEFPTR coef_block,
- JSAMPARRAY output_buf, JDIMENSION output_col));
-
-/* Lossy-specific decompression codec (decompressor proper) */
-typedef struct {
- struct jpeg_d_codec pub; /* public fields */
-
-
- /* Coefficient buffer control */
- JMETHOD(void, coef_start_input_pass, (j_decompress_ptr cinfo));
- JMETHOD(void, coef_start_output_pass, (j_decompress_ptr cinfo));
-
- /* Pointer to array of coefficient virtual arrays, or NULL if none */
- jvirt_barray_ptr *coef_arrays;
-
- /* Pointer to data which is private to coef module */
- void *coef_private;
-
-
- /* Entropy decoding */
- JMETHOD(void, entropy_start_pass, (j_decompress_ptr cinfo));
- JMETHOD(boolean, entropy_decode_mcu, (j_decompress_ptr cinfo,
- JBLOCKROW *MCU_data));
-
- /* This is here to share code between baseline and progressive decoders; */
- /* other modules probably should not use it */
- boolean entropy_insufficient_data; /* set TRUE after emitting warning */
-
- /* Pointer to data which is private to entropy module */
- void *entropy_private;
-
-
- /* Inverse DCT (also performs dequantization) */
- JMETHOD(void, idct_start_pass, (j_decompress_ptr cinfo));
-
- /* It is useful to allow each component to have a separate IDCT method. */
- inverse_DCT_method_ptr inverse_DCT[MAX_COMPONENTS];
-
- /* Pointer to data which is private to idct module */
- void *idct_private;
-
-} jpeg_lossy_d_codec;
-
-typedef jpeg_lossy_d_codec * j_lossy_d_ptr;
-
-
-/* Compression module initialization routines */
-EXTERN(void) jinit_lossy_c_codec JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_c_coef_controller JPP((j_compress_ptr cinfo,
- boolean need_full_buffer));
-EXTERN(void) jinit_forward_dct JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_shuff_encoder JPP((j_compress_ptr cinfo));
-EXTERN(void) jinit_phuff_encoder JPP((j_compress_ptr cinfo));
-
-/* Decompression module initialization routines */
-EXTERN(void) jinit_lossy_d_codec JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_d_coef_controller JPP((j_decompress_ptr cinfo,
- boolean need_full_buffer));
-EXTERN(void) jinit_shuff_decoder JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_phuff_decoder JPP((j_decompress_ptr cinfo));
-EXTERN(void) jinit_inverse_dct JPP((j_decompress_ptr cinfo));
-
-#endif /* JLOSSY_H */