src/render/SDL_yuv_sw_c.h
author Sam Lantinga <slouken@libsdl.org>
Wed, 05 Jun 2013 22:33:10 -0700
changeset 7286 04087a99e3f4
parent 6885 700f1b25f77f
child 7759 869583422e5a
permissions -rw-r--r--
Added testautomation to the Visual Studio 2008 project.
slouken@0
     1
/*
slouken@5535
     2
  Simple DirectMedia Layer
slouken@6885
     3
  Copyright (C) 1997-2013 Sam Lantinga <slouken@libsdl.org>
slouken@0
     4
slouken@5535
     5
  This software is provided 'as-is', without any express or implied
slouken@5535
     6
  warranty.  In no event will the authors be held liable for any damages
slouken@5535
     7
  arising from the use of this software.
slouken@0
     8
slouken@5535
     9
  Permission is granted to anyone to use this software for any purpose,
slouken@5535
    10
  including commercial applications, and to alter it and redistribute it
slouken@5535
    11
  freely, subject to the following restrictions:
slouken@0
    12
slouken@5535
    13
  1. The origin of this software must not be misrepresented; you must not
slouken@5535
    14
     claim that you wrote the original software. If you use this software
slouken@5535
    15
     in a product, an acknowledgment in the product documentation would be
slouken@5535
    16
     appreciated but is not required.
slouken@5535
    17
  2. Altered source versions must be plainly marked as such, and must not be
slouken@5535
    18
     misrepresented as being the original software.
slouken@5535
    19
  3. This notice may not be removed or altered from any source distribution.
slouken@0
    20
*/
slouken@1402
    21
#include "SDL_config.h"
slouken@0
    22
slouken@0
    23
#include "SDL_video.h"
slouken@0
    24
slouken@1895
    25
/* This is the software implementation of the YUV texture support */
slouken@0
    26
slouken@3257
    27
struct SDL_SW_YUVTexture
slouken@3257
    28
{
slouken@3257
    29
    Uint32 format;
slouken@3257
    30
    Uint32 target_format;
slouken@3257
    31
    int w, h;
slouken@3257
    32
    Uint8 *pixels;
slouken@3257
    33
    int *colortab;
slouken@3257
    34
    Uint32 *rgb_2_pix;
slouken@3257
    35
    void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257
    36
                       unsigned char *lum, unsigned char *cr,
slouken@3257
    37
                       unsigned char *cb, unsigned char *out,
slouken@3257
    38
                       int rows, int cols, int mod);
slouken@3257
    39
    void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
slouken@3257
    40
                       unsigned char *lum, unsigned char *cr,
slouken@3257
    41
                       unsigned char *cb, unsigned char *out,
slouken@3257
    42
                       int rows, int cols, int mod);
slouken@3257
    43
slouken@3257
    44
    /* These are just so we don't have to allocate them separately */
slouken@3257
    45
    Uint16 pitches[3];
slouken@3257
    46
    Uint8 *planes[3];
slouken@3257
    47
slouken@3257
    48
    /* This is a temporary surface in case we have to stretch copy */
slouken@3257
    49
    SDL_Surface *stretch;
slouken@3257
    50
    SDL_Surface *display;
slouken@3257
    51
};
slouken@3257
    52
slouken@1895
    53
typedef struct SDL_SW_YUVTexture SDL_SW_YUVTexture;
slouken@0
    54
slouken@2781
    55
SDL_SW_YUVTexture *SDL_SW_CreateYUVTexture(Uint32 format, int w, int h);
slouken@1895
    56
int SDL_SW_QueryYUVTexturePixels(SDL_SW_YUVTexture * swdata, void **pixels,
slouken@1895
    57
                                 int *pitch);
slouken@1895
    58
int SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@1895
    59
                            const void *pixels, int pitch);
slouken@1895
    60
int SDL_SW_LockYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
slouken@5156
    61
                          void **pixels, int *pitch);
slouken@1895
    62
void SDL_SW_UnlockYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@1895
    63
int SDL_SW_CopyYUVToRGB(SDL_SW_YUVTexture * swdata, const SDL_Rect * srcrect,
slouken@1895
    64
                        Uint32 target_format, int w, int h, void *pixels,
slouken@1895
    65
                        int pitch);
slouken@1895
    66
void SDL_SW_DestroyYUVTexture(SDL_SW_YUVTexture * swdata);
slouken@0
    67
slouken@1895
    68
/* vi: set ts=4 sw=4 expandtab: */