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/*****************************************************************
* gavl - a general purpose audio/video processing library
*
* Copyright (c) 2001 - 2012 Members of the Gmerlin project
* gmerlin-general@lists.sourceforge.net
* http://gmerlin.sourceforge.net
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
* *****************************************************************/
#define MAX_TRANSFORM_FILTER 4
typedef struct
{
int index_x;
int index_y;
int outside;
float factors[MAX_TRANSFORM_FILTER][MAX_TRANSFORM_FILTER];
int factors_i[MAX_TRANSFORM_FILTER][MAX_TRANSFORM_FILTER];
} gavl_transform_pixel_t;
typedef struct gavl_transform_context_s gavl_transform_context_t;
typedef void
(*gavl_transform_scanline_func)(gavl_transform_context_t * ctx,
gavl_transform_pixel_t * pixels,
uint8_t * dest_start);
typedef struct
{
gavl_transform_scanline_func transform_rgb_15;
gavl_transform_scanline_func transform_rgb_16;
gavl_transform_scanline_func transform_uint8_x_1_noadvance;
gavl_transform_scanline_func transform_uint8_x_1_advance;
gavl_transform_scanline_func transform_uint8_x_2;
gavl_transform_scanline_func transform_uint8_x_3;
gavl_transform_scanline_func transform_uint8_x_4;
gavl_transform_scanline_func transform_uint16_x_1;
gavl_transform_scanline_func transform_uint16_x_2;
gavl_transform_scanline_func transform_uint16_x_3;
gavl_transform_scanline_func transform_uint16_x_4;
gavl_transform_scanline_func transform_float_x_1;
gavl_transform_scanline_func transform_float_x_2;
gavl_transform_scanline_func transform_float_x_3;
gavl_transform_scanline_func transform_float_x_4;
/* Bits needed for the integer scaling coefficient */
int bits_rgb_15;
int bits_rgb_16;
int bits_uint8_noadvance;
int bits_uint8_advance;
int bits_uint16_x_1;
int bits_uint16_x_2;
int bits_uint16_x_3;
int bits_uint16_x_4;
} gavl_transform_funcs_t;
void gavl_init_transform_funcs_nearest_c(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_bilinear_c(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_quadratic_c(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_bicubic_c(gavl_transform_funcs_t * tab,
int advance);
#ifdef HAVE_MMX
void gavl_init_transform_funcs_bilinear_mmx(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_bilinear_mmxext(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_quadratic_mmx(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_quadratic_mmxext(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_bicubic_mmx(gavl_transform_funcs_t * tab,
int advance);
void gavl_init_transform_funcs_bicubic_mmxext(gavl_transform_funcs_t * tab,
int advance);
#endif
typedef struct
{
gavl_transform_pixel_t ** pixels;
int factors_per_pixel; /* Per dimension */
} gavl_transform_table_t;
void gavl_transform_table_init(gavl_transform_table_t * t,
gavl_video_options_t * opt,
gavl_image_transform_func func, void * priv,
float off_x, float off_y, float scale_x,
float scale_y, int width, int height);
void gavl_transform_table_init_int(gavl_transform_table_t * tab,
int bits, int width, int height);
void
gavl_transform_table_free(gavl_transform_table_t * tab);
/* Context is for one plane and field */
struct gavl_transform_context_s
{
gavl_transform_scanline_func func;
gavl_transform_table_t tab;
int offset;
int advance;
int plane;
int field;
int num_fields;
int dst_width;
int dst_height;
/* Things set while transforming */
uint8_t * src; /* Beginning of plane */
int src_stride;
gavl_video_options_t * opt;
gavl_video_frame_t * dst_frame;
#ifdef HAVE_MMX
int need_emms;
#endif
};
int
gavl_transform_context_init(gavl_image_transform_t * t,
gavl_video_options_t * opt,
int field_index, int plane_index,
gavl_image_transform_func func, void * priv);
void
gavl_transform_context_transform(gavl_transform_context_t * ctx,
const gavl_video_frame_t * src,
gavl_video_frame_t * dst);
void
gavl_transform_context_free(gavl_transform_context_t * ctx);
struct gavl_image_transform_s
{
gavl_video_options_t opt;
gavl_video_format_t format;
/*
* a context is obtained with contexts[field][plane].
* field == 2 contains a progressive scaler, which might be
* required for frame based interlacing
*/
gavl_transform_context_t contexts[3][GAVL_MAX_PLANES];
int num_planes;
int num_fields;
};
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