mirror of https://github.com/mpv-player/mpv
79 lines
2.6 KiB
C
79 lines
2.6 KiB
C
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#include "config.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if HAVE_MALLOC_H
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#include <malloc.h>
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#endif
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#include "libmpcodecs/img_format.h"
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#include "libmpcodecs/mp_image.h"
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#include "libvo/fastmemcpy.h"
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void mp_image_alloc_planes(mp_image_t *mpi) {
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// IF09 - allocate space for 4. plane delta info - unused
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if (mpi->imgfmt == IMGFMT_IF09) {
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mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*(mpi->height+2)/8+
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mpi->chroma_width*mpi->chroma_height);
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} else
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mpi->planes[0]=memalign(64, mpi->bpp*mpi->width*(mpi->height+2)/8);
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if (mpi->flags&MP_IMGFLAG_PLANAR) {
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int bpp = IMGFMT_IS_YUVP16(mpi->imgfmt)? 2 : 1;
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// YV12/I420/YVU9/IF09. feel free to add other planar formats here...
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mpi->stride[0]=mpi->stride[3]=bpp*mpi->width;
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if(mpi->num_planes > 2){
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mpi->stride[1]=mpi->stride[2]=bpp*mpi->chroma_width;
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if(mpi->flags&MP_IMGFLAG_SWAPPED){
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// I420/IYUV (Y,U,V)
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mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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mpi->planes[2]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height;
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if (mpi->num_planes > 3)
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mpi->planes[3]=mpi->planes[2]+mpi->stride[2]*mpi->chroma_height;
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} else {
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// YV12,YVU9,IF09 (Y,V,U)
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mpi->planes[2]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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mpi->planes[1]=mpi->planes[2]+mpi->stride[1]*mpi->chroma_height;
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if (mpi->num_planes > 3)
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mpi->planes[3]=mpi->planes[1]+mpi->stride[1]*mpi->chroma_height;
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}
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} else {
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// NV12/NV21
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mpi->stride[1]=mpi->chroma_width;
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mpi->planes[1]=mpi->planes[0]+mpi->stride[0]*mpi->height;
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}
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} else {
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mpi->stride[0]=mpi->width*mpi->bpp/8;
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if (mpi->flags & MP_IMGFLAG_RGB_PALETTE)
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mpi->planes[1] = memalign(64, 1024);
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}
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mpi->flags|=MP_IMGFLAG_ALLOCATED;
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}
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mp_image_t* alloc_mpi(int w, int h, unsigned long int fmt) {
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mp_image_t* mpi = new_mp_image(w,h);
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mp_image_setfmt(mpi,fmt);
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mp_image_alloc_planes(mpi);
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return mpi;
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}
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void copy_mpi(mp_image_t *dmpi, mp_image_t *mpi) {
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if(mpi->flags&MP_IMGFLAG_PLANAR){
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memcpy_pic(dmpi->planes[0],mpi->planes[0], mpi->w, mpi->h,
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dmpi->stride[0],mpi->stride[0]);
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memcpy_pic(dmpi->planes[1],mpi->planes[1], mpi->chroma_width, mpi->chroma_height,
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dmpi->stride[1],mpi->stride[1]);
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memcpy_pic(dmpi->planes[2], mpi->planes[2], mpi->chroma_width, mpi->chroma_height,
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dmpi->stride[2],mpi->stride[2]);
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} else {
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memcpy_pic(dmpi->planes[0],mpi->planes[0],
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mpi->w*(dmpi->bpp/8), mpi->h,
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dmpi->stride[0],mpi->stride[0]);
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}
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}
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