swscale_unscaled.c File Reference

#include "swscale_loongarch.h"
#include "libswscale/swscale_internal.h"
#include "libavutil/loongarch/cpu.h"

Go to the source code of this file.

Macros
#define	NVXXRGB32FUNC(func_name, uv_swap)

Functions
void	ff_get_unscaled_swscale_loongarch (SwsInternal *c)

Macro Definition Documentation

NVXXRGB32FUNC

#define NVXXRGB32FUNC	(		func_name,
			uv_swap )

Value:

int func_name(SwsInternal *c, const uint8_t *const src[],                   \
              const int srcStride[], int srcSliceY, int srcSliceH,          \
              uint8_t *const dst[], const int dstStride[])                  \
{                                                                           \
    int y;                                                                  \
                                                                            \
    for (y = 0; y < srcSliceH; y++) {                                       \
        int yd = y + srcSliceY;                                             \
        uint32_t *dest = (uint32_t *)(dst[0] + yd * dstStride[0]);          \
        const uint8_t *py  = src[0] +      y      * srcStride[0];           \
        const uint8_t *puv = src[1] + (y >> 1) * srcStride[1];              \
        int i;                                                              \
                                                                            \
        for (i = 0; i < c->opts.dst_w; i++) {                               \
            int Y = py[i];                                                  \
            int U = puv[(i >> 1) * 2 + uv_swap];                            \
            int V = puv[(i >> 1) * 2 + (uv_swap ^ 1)];                      \
            uint32_t *r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM];     \
            uint32_t *g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM]     \
                                 + c->table_gV[V+YUVRGB_TABLE_HEADROOM]);   \
            uint32_t *b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];     \
            dest[i] = r[Y] + g[Y] + b[Y];                                   \
        }                                                                   \
    }                                                                       \
    return srcSliceH;                                                       \
}

Definition at line 32 of file swscale_unscaled.c.

Function Documentation

ff_get_unscaled_swscale_loongarch()

void ff_get_unscaled_swscale_loongarch

(

SwsInternal *

c

)

Definition at line 64 of file swscale_unscaled.c.

Referenced by ff_get_unscaled_swscale(), and ff_get_unscaled_swscale_loongarch().