diff options
Diffstat (limited to 'src/gallium/auxiliary')
| -rw-r--r-- | src/gallium/auxiliary/util/u_video.h | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_video.h b/src/gallium/auxiliary/util/u_video.h index 99a8fd6e4f3..7cd6268d1fc 100644 --- a/src/gallium/auxiliary/util/u_video.h +++ b/src/gallium/auxiliary/util/u_video.h @@ -107,6 +107,48 @@ u_copy_nv12_to_yv12(void *const *destination_data, } } +/** + * \brief Copy YV12 chroma data while converting it NV12 + * + * Given a set of YV12 source pointers and -pitches, copy the data to a + * layout typical for NV12 video buffers. + * + * \param source data[in] The plane data pointers. Array of 3. + * \param source_pitches[in] The plane pitches. Array of 3. + * \param dst_plane[in] The destination plane to copy to. For NV12 always 1. + * \param dst_field[in] The destination field if interlaced. + * \param dst_stride[in] The destination stride for this plane. + * \param num_fields[in] The number of fields in the video buffer. + * \param dst[in] The destination plane pointer. + * \param width[in] The source plane width. + * \param height[in] The source plane height. + */ +static inline void +u_copy_nv12_from_yv12(const void *const *source_data, + uint32_t const *source_pitches, + int dst_plane, int dst_field, + int dst_stride, int num_fields, + uint8_t *dst, + int width, int height) +{ + int x, y; + unsigned u_stride = source_pitches[2] * num_fields; + unsigned v_stride = source_pitches[1] * num_fields; + uint8_t *u_src = (uint8_t *)source_data[2] + source_pitches[2] * dst_field; + uint8_t *v_src = (uint8_t *)source_data[1] + source_pitches[1] * dst_field; + + /* TODO: SIMD */ + for (y = 0; y < height; y++) { + for (x = 0; x < width; x++) { + dst[2*x] = u_src[x]; + dst[2*x+1] = v_src[x]; + } + u_src += u_stride; + v_src += v_stride; + dst += dst_stride; + } +} + static inline void u_copy_yv12_to_nv12(void *const *destination_data, uint32_t const *destination_pitches, |