src/render/SDL_yuv_sw_c.h
author Sam Lantinga
Fri, 11 Feb 2011 22:37:15 -0800
changeset 5262 b530ef003506
parent 5156 307ccc9c135e
child 5535 96594ac5fd1a
permissions -rw-r--r--
Happy 2011! :)
slouken@0
     1
/*
slouken@0
     2
    SDL - Simple DirectMedia Layer
slouken@5262
     3
    Copyright (C) 1997-2011 Sam Lantinga
slouken@0
     4
slouken@0
     5
    This library is free software; you can redistribute it and/or
slouken@1312
     6
    modify it under the terms of the GNU Lesser General Public
slouken@0
     7
    License as published by the Free Software Foundation; either
slouken@1312
     8
    version 2.1 of the License, or (at your option) any later version.
slouken@0
     9
slouken@0
    10
    This library is distributed in the hope that it will be useful,
slouken@0
    11
    but WITHOUT ANY WARRANTY; without even the implied warranty of
slouken@0
    12
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
slouken@1312
    13
    Lesser General Public License for more details.
slouken@0
    14
slouken@1312
    15
    You should have received a copy of the GNU Lesser General Public
slouken@1312
    16
    License along with this library; if not, write to the Free Software
slouken@1312
    17
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
slouken@0
    18
slouken@0
    19
    Sam Lantinga
slouken@252
    20
    slouken@libsdl.org
slouken@0
    21
*/
slouken@1402
    22
#include "SDL_config.h"
slouken@0
    23
slouken@0
    24
#include "SDL_video.h"
slouken@0
    25
slouken@1895
    26
/* This is the software implementation of the YUV texture support */
slouken@0
    27
slouken@3257
    28
struct SDL_SW_YUVTexture
slouken@3257
    29
{
slouken@3257
    30
    Uint32 format;
slouken@3257
    31
    Uint32 target_format;
slouken@3257
    32
    int w, h;
slouken@3257
    33
    Uint8 *pixels;
slouken@3257
    34
    int *colortab;
slouken@3257
    35
    Uint32 *rgb_2_pix;
slouken@3257
    36
    void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257
    37
                       unsigned char *lum, unsigned char *cr,
slouken@3257
    38
                       unsigned char *cb, unsigned char *out,
slouken@3257
    39
                       int rows, int cols, int mod);
slouken@3257
    40
    void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257
    41
                       unsigned char *lum, unsigned char *cr,
slouken@3257
    42
                       unsigned char *cb, unsigned char *out,
slouken@3257
    43
                       int rows, int cols, int mod);
slouken@3257
    44
slouken@3257
    45
    /* These are just so we don't have to allocate them separately */
slouken@3257
    46
    Uint16 pitches[3];
slouken@3257
    47
    Uint8 *planes[3];
slouken@3257
    48
slouken@3257
    49
    /* This is a temporary surface in case we have to stretch copy */
slouken@3257
    50
    SDL_Surface *stretch;
slouken@3257
    51
    SDL_Surface *display;
slouken@3257
    52
};
slouken@3257
    53
slouken@1895
    54
typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
slouken@0
    55
slouken@2781
    56
SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
slouken@1895
    57
int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
slouken@1895
    58
                                 int *pitch);
slouken@1895
    59
int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@1895
    60
                            const void *pixels, int pitch);
slouken@1895
    61
int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@5156
    62
                          void **pixels, int *pitch);
slouken@1895
    63
void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@1895
    64
int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
slouken@1895
    65
                        Uint32 target_format, int w, int h, void *pixels,
slouken@1895
    66
                        int pitch);
slouken@1895
    67
void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@0
    68
slouken@1895
    69
/* vi: set ts=4 sw=4 expandtab: */