SDL_SW_YUVTexture结构体

最新推荐文章于 2023-02-11 09:24:12 发布

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最新推荐文章于 2023-02-11 09:24:12 发布

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分类专栏： SDL

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本文详细介绍了SDL软件库中用于处理YUV格式图像的SDL_SW_YUVTexture结构体。该结构体包含了格式信息、颜色查找表、像素数据以及显示处理函数等关键元素，是实现YUV图像高效显示的重要组成部分。

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struct SDL_SW_YUVTexture
{
Uint32 format;
Uint32 target_format;
int w, h;
Uint8 *pixels;
int *colortab;
Uint32 *rgb_2_pix;
void (*Display1X) (int *colortab, Uint32 * rgb_2_pix,
unsigned char *lum, unsigned char *cr,
unsigned char *cb, unsigned char *out,
int rows, int cols, int mod);
void (*Display2X) (int *colortab, Uint32 * rgb_2_pix,
unsigned char *lum, unsigned char *cr,
unsigned char *cb, unsigned char *out,
int rows, int cols, int mod);

/* These are just so we don't have to allocate them separately */
Uint16 pitches[3];
Uint8 *planes[3];

/* This is a temporary surface in case we have to stretch copy */
SDL_Surface *stretch;
SDL_Surface *display;
};