mirror of https://github.com/mpv-player/mpv
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/*
|
|
* This file is part of mpv.
|
|
*
|
|
* mpv is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* mpv is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along
|
|
* with mpv. If not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
|
|
#include <assert.h>
|
|
|
|
#include "common/av_common.h"
|
|
#include "dxva2.h"
|
|
#include "mp_image.h"
|
|
#include "img_format.h"
|
|
#include "mp_image_pool.h"
|
|
|
|
struct dxva2_surface {
|
|
HMODULE d3dlib;
|
|
HMODULE dxva2lib;
|
|
|
|
IDirectXVideoDecoder *decoder;
|
|
LPDIRECT3DSURFACE9 surface;
|
|
};
|
|
|
|
LPDIRECT3DSURFACE9 d3d9_surface_in_mp_image(struct mp_image *mpi)
|
|
{
|
|
return mpi && mpi->imgfmt == IMGFMT_DXVA2 ?
|
|
(LPDIRECT3DSURFACE9)mpi->planes[3] : NULL;
|
|
}
|
|
|
|
void dxva2_img_ref_decoder(struct mp_image *mpi, IDirectXVideoDecoder *decoder)
|
|
{
|
|
assert(mpi->imgfmt == IMGFMT_DXVA2);
|
|
struct dxva2_surface *surface = (struct dxva2_surface *)mpi->planes[0];
|
|
if (surface->decoder)
|
|
IDirectXVideoDecoder_Release(surface->decoder);
|
|
surface->decoder = decoder;
|
|
IDirectXVideoDecoder_AddRef(surface->decoder);
|
|
}
|
|
|
|
static void dxva2_pool_release_img(void *arg)
|
|
{
|
|
struct dxva2_surface *surface = arg;
|
|
if (surface->surface)
|
|
IDirect3DSurface9_Release(surface->surface);
|
|
|
|
if (surface->decoder)
|
|
IDirectXVideoDecoder_Release(surface->decoder);
|
|
|
|
if (surface->dxva2lib)
|
|
FreeLibrary(surface->dxva2lib);
|
|
|
|
if (surface->d3dlib)
|
|
FreeLibrary(surface->d3dlib);
|
|
|
|
talloc_free(surface);
|
|
}
|
|
|
|
struct pool_alloc_ctx {
|
|
IDirectXVideoDecoderService *decoder_service;
|
|
D3DFORMAT target_format;
|
|
int surface_alignment;
|
|
};
|
|
|
|
static struct mp_image *dxva2_pool_alloc_img(void *arg, int fmt, int w, int h)
|
|
{
|
|
if (fmt != IMGFMT_DXVA2)
|
|
return NULL;
|
|
struct dxva2_surface *surface = talloc_zero(NULL, struct dxva2_surface);
|
|
|
|
// Add additional references to the libraries which might otherwise be freed
|
|
// before the surface, which is observed to lead to bad behaviour
|
|
surface->d3dlib = LoadLibrary(L"d3d9.dll");
|
|
surface->dxva2lib = LoadLibrary(L"dxva2.dll");
|
|
if (!surface->d3dlib || !surface->dxva2lib)
|
|
goto fail;
|
|
|
|
struct pool_alloc_ctx *alloc_ctx = arg;
|
|
HRESULT hr = IDirectXVideoDecoderService_CreateSurface(
|
|
alloc_ctx->decoder_service,
|
|
FFALIGN(w, alloc_ctx->surface_alignment),
|
|
FFALIGN(h, alloc_ctx->surface_alignment),
|
|
0, alloc_ctx->target_format, D3DPOOL_DEFAULT, 0,
|
|
DXVA2_VideoDecoderRenderTarget,
|
|
&surface->surface, NULL);
|
|
if (FAILED(hr))
|
|
goto fail;
|
|
|
|
struct mp_image mpi = {0};
|
|
mp_image_setfmt(&mpi, IMGFMT_DXVA2);
|
|
mp_image_set_size(&mpi, w, h);
|
|
mpi.planes[0] = (void *)surface;
|
|
mpi.planes[3] = (void *)surface->surface;
|
|
|
|
return mp_image_new_custom_ref(&mpi, surface, dxva2_pool_release_img);
|
|
fail:
|
|
dxva2_pool_release_img(surface);
|
|
return NULL;
|
|
}
|
|
|
|
void dxva2_pool_set_allocator(struct mp_image_pool *pool,
|
|
IDirectXVideoDecoderService *decoder_service,
|
|
D3DFORMAT target_format, int surface_alignment)
|
|
{
|
|
struct pool_alloc_ctx *alloc_ctx = talloc_ptrtype(pool, alloc_ctx);
|
|
*alloc_ctx = (struct pool_alloc_ctx){
|
|
decoder_service = decoder_service,
|
|
target_format = target_format,
|
|
surface_alignment = surface_alignment
|
|
};
|
|
mp_image_pool_set_allocator(pool, dxva2_pool_alloc_img, alloc_ctx);
|
|
mp_image_pool_set_lru(pool);
|
|
}
|