hvirtual/quicktime/colormodels.h

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/*
 * This library is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as published
 * by the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 * 
 * This library 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
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 
 * USA
 */
 
 
#ifndef COLORMODELS_H
#define COLORMODELS_H

// Colormodels
#define BC_TRANSPARENCY 0
#define BC_COMPRESSED   1
#define BC_RGB8         2
#define BC_RGB565       3
#define BC_BGR565       4
#define BC_BGR888       5
#define BC_BGR8888      6
// Working bitmaps are packed to simplify processing
#define BC_RGB888       9
#define BC_RGBA8888     10
#define BC_ARGB8888     20
#define BC_ABGR8888     21
#define BC_RGB161616    11
#define BC_RGBA16161616 12
#define BC_YUV888       13
#define BC_YUVA8888     14
#define BC_YUV161616    15
#define BC_YUVA16161616 16
#define BC_YUV422       19
#define BC_A8           22
#define BC_A16          23
#define BC_A_FLOAT      31
#define BC_YUV101010    24
#define BC_VYU888       25
#define BC_UYVA8888     26
#define BC_RGB_FLOAT    29
#define BC_RGBA_FLOAT   30
// Planar
#define BC_YUV420P      7
#define BC_YUV422P      17
#define BC_YUV444P      27
#define BC_YUV411P      18
#define BC_YUV9P        28     // Disasterous cmodel from Sorenson

// Colormodels purely used by Quicktime are done in Quicktime.

// For communication with the X Server
#define FOURCC_YV12 0x32315659  /* YV12   YUV420P */
#define FOURCC_YUV2 0x32595559  /* YUV2   YUV422 */
#define FOURCC_I420 0x30323449  /* I420   Intel Indeo 4 */

#undef CLAMP
#define CLAMP(x, y, z) ((x) = ((x) < (y) ? (y) : ((x) > (z) ? (z) : (x))))

#undef CLIP
#define CLIP(x, y, z) ((x) < (y) ? (y) : ((x) > (z) ? (z) : (x)))


#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
        int rtoy_tab[0x100], gtoy_tab[0x100], btoy_tab[0x100];
        int rtou_tab[0x100], gtou_tab[0x100], btou_tab[0x100];
        int rtov_tab[0x100], gtov_tab[0x100], btov_tab[0x100];

        int vtor_tab[0x100], vtog_tab[0x100];
        int utog_tab[0x100], utob_tab[0x100];
// Used by init_yuv only
        int *vtor, *vtog, *utog, *utob;
        
        short int vtor_tab8[0x100], vtog_tab8[0x100];
        short int utog_tab8[0x100], utob_tab8[0x100];
        short int *vtor8, *vtog8, *utog8, *utob8;

        float vtor_float_tab[0x100], vtog_float_tab[0x100];
        float utog_float_tab[0x100], utob_float_tab[0x100];
        float *vtor_float, *vtog_float, *utog_float, *utob_float;

        int rtoy_tab16[0x10000], gtoy_tab16[0x10000], btoy_tab16[0x10000];
        int rtou_tab16[0x10000], gtou_tab16[0x10000], btou_tab16[0x10000];
        int rtov_tab16[0x10000], gtov_tab16[0x10000], btov_tab16[0x10000];

        int vtor_tab16[0x10000], vtog_tab16[0x10000];
        int utog_tab16[0x10000], utob_tab16[0x10000];
        int *vtor16, *vtog16, *utog16, *utob16;

        float v16tor_float_tab[0x10000], v16tog_float_tab[0x10000];
        float u16tog_float_tab[0x10000], u16tob_float_tab[0x10000];
        float *v16tor_float, *v16tog_float, *u16tog_float, *u16tob_float;
} cmodel_yuv_t;

extern cmodel_yuv_t *yuv_table;

int cmodel_calculate_pixelsize(int colormodel);
int cmodel_calculate_datasize(int w, int h, int bytes_per_line, int color_model);
int cmodel_calculate_max(int colormodel);
int cmodel_components(int colormodel);
int cmodel_is_yuv(int colormodel);
int cmodel_has_alpha(int colormodel);

// Tell when to use plane arguments or row pointer arguments to functions
int cmodel_is_planar(int color_model);
void cmodel_to_text(char *string, int cmodel);
int cmodel_from_text(char *text);



void cmodel_transfer(unsigned char **output_rows, /* Leave NULL if non existent */
        unsigned char **input_rows,
        unsigned char *out_y_plane, /* Leave NULL if non existent */
        unsigned char *out_u_plane,
        unsigned char *out_v_plane,
        unsigned char *in_y_plane, /* Leave NULL if non existent */
        unsigned char *in_u_plane,
        unsigned char *in_v_plane,
        int in_x,        /* Dimensions to capture from input frame */
        int in_y, 
        int in_w, 
        int in_h,
        int out_x,       /* Dimensions to project on output frame */
        int out_y, 
        int out_w, 
        int out_h,
        int in_colormodel, 
        int out_colormodel,
        int bg_color,         /* When transfering BC_RGBA8888 to non-alpha this is the background color in 0xRRGGBB hex */
        int in_rowspan,       /* For planar use the luma rowspan */
        int out_rowspan);     /* For planar use the luma rowspan */

void cmodel_init_yuv(cmodel_yuv_t *yuv_table);
void cmodel_delete_yuv(cmodel_yuv_t *yuv_table);
int cmodel_bc_to_x(int color_model);

#ifdef __cplusplus
}
#endif

#endif

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