yading@10: /*
yading@10:  * Copyright (C) 2004-2010 Michael Niedermayer <michaelni@gmx.at>
yading@10:  *
yading@10:  * This file is part of FFmpeg.
yading@10:  *
yading@10:  * FFmpeg is free software; you can redistribute it and/or
yading@10:  * modify it under the terms of the GNU Lesser General Public
yading@10:  * License as published by the Free Software Foundation; either
yading@10:  * version 2.1 of the License, or (at your option) any later version.
yading@10:  *
yading@10:  * FFmpeg is distributed in the hope that it will be useful,
yading@10:  * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@10:  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
yading@10:  * Lesser General Public License for more details.
yading@10:  *
yading@10:  * You should have received a copy of the GNU Lesser General Public
yading@10:  * License along with FFmpeg; if not, write to the Free Software
yading@10:  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@10:  */
yading@10: 
yading@10: #ifndef AVCODEC_SNOW_DWT_H
yading@10: #define AVCODEC_SNOW_DWT_H
yading@10: 
yading@10: #include <stdint.h>
yading@10: 
yading@10: typedef int DWTELEM;
yading@10: typedef short IDWTELEM;
yading@10: 
yading@10: #define MAX_DECOMPOSITIONS 8
yading@10: 
yading@10: typedef struct DWTCompose {
yading@10:     IDWTELEM *b0;
yading@10:     IDWTELEM *b1;
yading@10:     IDWTELEM *b2;
yading@10:     IDWTELEM *b3;
yading@10:     int y;
yading@10: } DWTCompose;
yading@10: 
yading@10: /** Used to minimize the amount of memory used in order to
yading@10:  *  optimize cache performance. **/
yading@10: typedef struct slice_buffer_s {
yading@10:     IDWTELEM **line;   ///< For use by idwt and predict_slices.
yading@10:     IDWTELEM **data_stack;   ///< Used for internal purposes.
yading@10:     int data_stack_top;
yading@10:     int line_count;
yading@10:     int line_width;
yading@10:     int data_count;
yading@10:     IDWTELEM *base_buffer;  ///< Buffer that this structure is caching.
yading@10: } slice_buffer;
yading@10: 
yading@10: struct SnowDWTContext;
yading@10: 
yading@10: typedef struct SnowDWTContext {
yading@10:     void (*vertical_compose97i)(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
yading@10:                                 IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
yading@10:                                 int width);
yading@10:     void (*horizontal_compose97i)(IDWTELEM *b, IDWTELEM *temp, int width);
yading@10:     void (*inner_add_yblock)(const uint8_t *obmc, const int obmc_stride,
yading@10:                              uint8_t **block, int b_w, int b_h, int src_x,
yading@10:                              int src_y, int src_stride, slice_buffer *sb,
yading@10:                              int add, uint8_t *dst8);
yading@10: } SnowDWTContext;
yading@10: 
yading@10: 
yading@10: #define DWT_97 0
yading@10: #define DWT_53 1
yading@10: 
yading@10: #define liftS lift
yading@10: #define W_AM 3
yading@10: #define W_AO 0
yading@10: #define W_AS 1
yading@10: 
yading@10: #undef liftS
yading@10: #define W_BM 1
yading@10: #define W_BO 8
yading@10: #define W_BS 4
yading@10: 
yading@10: #define W_CM 1
yading@10: #define W_CO 0
yading@10: #define W_CS 0
yading@10: 
yading@10: #define W_DM 3
yading@10: #define W_DO 4
yading@10: #define W_DS 3
yading@10: 
yading@10: #define slice_buffer_get_line(slice_buf, line_num)                          \
yading@10:     ((slice_buf)->line[line_num] ? (slice_buf)->line[line_num]              \
yading@10:                                  : ff_slice_buffer_load_line((slice_buf),   \
yading@10:                                                              (line_num)))
yading@10: 
yading@10: int ff_slice_buffer_init(slice_buffer *buf, int line_count,
yading@10:                          int max_allocated_lines, int line_width,
yading@10:                          IDWTELEM *base_buffer);
yading@10: void ff_slice_buffer_release(slice_buffer *buf, int line);
yading@10: void ff_slice_buffer_flush(slice_buffer *buf);
yading@10: void ff_slice_buffer_destroy(slice_buffer *buf);
yading@10: IDWTELEM *ff_slice_buffer_load_line(slice_buffer *buf, int line);
yading@10: 
yading@10: void ff_snow_vertical_compose97i(IDWTELEM *b0, IDWTELEM *b1, IDWTELEM *b2,
yading@10:                                  IDWTELEM *b3, IDWTELEM *b4, IDWTELEM *b5,
yading@10:                                  int width);
yading@10: void ff_snow_horizontal_compose97i(IDWTELEM *b, IDWTELEM *temp, int width);
yading@10: void ff_snow_inner_add_yblock(const uint8_t *obmc, const int obmc_stride,
yading@10:                               uint8_t **block, int b_w, int b_h, int src_x,
yading@10:                               int src_y, int src_stride, slice_buffer *sb,
yading@10:                               int add, uint8_t *dst8);
yading@10: 
yading@10: int ff_w53_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
yading@10: int ff_w97_32_c(void *v, uint8_t *pix1, uint8_t *pix2, int line_size, int h);
yading@10: 
yading@10: void ff_spatial_dwt(int *buffer, int *temp, int width, int height, int stride,
yading@10:                     int type, int decomposition_count);
yading@10: 
yading@10: void ff_spatial_idwt_buffered_init(DWTCompose *cs, slice_buffer *sb, int width,
yading@10:                                    int height, int stride_line, int type,
yading@10:                                    int decomposition_count);
yading@10: void ff_spatial_idwt_buffered_slice(SnowDWTContext *dsp, DWTCompose *cs,
yading@10:                                     slice_buffer *slice_buf, IDWTELEM *temp,
yading@10:                                     int width, int height, int stride_line,
yading@10:                                     int type, int decomposition_count, int y);
yading@10: void ff_spatial_idwt(IDWTELEM *buffer, IDWTELEM *temp, int width, int height,
yading@10:                      int stride, int type, int decomposition_count);
yading@10: 
yading@10: void ff_dwt_init(SnowDWTContext *c);
yading@10: void ff_dwt_init_x86(SnowDWTContext *c);
yading@10: 
yading@10: #endif /* AVCODEC_DWT_H */