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/*
* Ported from FFmpeg ffmpeg_dxva2.c (2dbee1a3935a91842c22eb65fd13f77e8d590e07).
* Original copyright header follows:
*
* This file is part of FFmpeg.
*
* FFmpeg is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* FFmpeg 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define DXVA2API_USE_BITFIELDS
#include <libavcodec/dxva2.h>
#include <libavutil/common.h>
#include "config.h"
#include "lavc.h"
#include "common/common.h"
#include "common/av_common.h"
#include "osdep/windows_utils.h"
#include "video/fmt-conversion.h"
#include "video/mp_image_pool.h"
#include "video/hwdec.h"
#include "d3d.h"
#include <libavutil/hwcontext.h>
#include <libavutil/hwcontext_dxva2.h>
static void d3d9_free_av_device_ref(AVHWDeviceContext *ctx)
{
AVDXVA2DeviceContext *hwctx = ctx->hwctx;
if (hwctx->devmgr)
IDirect3DDeviceManager9_Release(hwctx->devmgr);
}
AVBufferRef *d3d9_wrap_device_ref(IDirect3DDevice9 *device)
{
HRESULT hr;
d3d_load_dlls();
if (!dxva2_dll)
return NULL;
HRESULT (WINAPI *DXVA2CreateDirect3DDeviceManager9)(UINT *, IDirect3DDeviceManager9 **) =
(void *)GetProcAddress(dxva2_dll, "DXVA2CreateDirect3DDeviceManager9");
if (!DXVA2CreateDirect3DDeviceManager9)
return NULL;
AVBufferRef *device_ref = av_hwdevice_ctx_alloc(AV_HWDEVICE_TYPE_DXVA2);
if (!device_ref)
return NULL;
AVHWDeviceContext *ctx = (void *)device_ref->data;
AVDXVA2DeviceContext *hwctx = ctx->hwctx;
UINT reset_token = 0;
hr = DXVA2CreateDirect3DDeviceManager9(&reset_token, &hwctx->devmgr);
if (FAILED(hr))
goto fail;
IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, device, reset_token);
if (FAILED(hr))
goto fail;
ctx->free = d3d9_free_av_device_ref;
if (av_hwdevice_ctx_init(device_ref) < 0)
goto fail;
return device_ref;
fail:
d3d9_free_av_device_ref(ctx);
av_buffer_unref(&device_ref);
return NULL;
}
static void d3d9_destroy_dev(struct mp_hwdec_ctx *ctx)
{
av_buffer_unref(&ctx->av_device_ref);
IDirect3DDevice9_Release((IDirect3DDevice9 *)ctx->ctx);
talloc_free(ctx);
}
static struct mp_hwdec_ctx *d3d9_create_dev(struct mpv_global *global,
struct mp_log *plog, bool probing)
{
d3d_load_dlls();
if (!d3d9_dll || !dxva2_dll) {
mp_err(plog, "Failed to load D3D9 library\n");
return NULL;
}
HRESULT (WINAPI *Direct3DCreate9Ex)(UINT, IDirect3D9Ex **) =
(void *)GetProcAddress(d3d9_dll, "Direct3DCreate9Ex");
if (!Direct3DCreate9Ex) {
mp_err(plog, "Failed to locate Direct3DCreate9Ex\n");
return NULL;
}
IDirect3D9Ex *d3d9ex = NULL;
HRESULT hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &d3d9ex);
if (FAILED(hr)) {
mp_err(plog, "Failed to create IDirect3D9Ex object\n");
return NULL;
}
UINT adapter = D3DADAPTER_DEFAULT;
D3DDISPLAYMODEEX modeex = {0};
IDirect3D9Ex_GetAdapterDisplayModeEx(d3d9ex, adapter, &modeex, NULL);
D3DPRESENT_PARAMETERS present_params = {
.Windowed = TRUE,
.BackBufferWidth = 640,
.BackBufferHeight = 480,
.BackBufferCount = 0,
.BackBufferFormat = modeex.Format,
.SwapEffect = D3DSWAPEFFECT_DISCARD,
.Flags = D3DPRESENTFLAG_VIDEO,
};
IDirect3DDevice9Ex *exdev = NULL;
hr = IDirect3D9Ex_CreateDeviceEx(d3d9ex, adapter,
D3DDEVTYPE_HAL,
GetShellWindow(),
D3DCREATE_SOFTWARE_VERTEXPROCESSING |
D3DCREATE_MULTITHREADED |
D3DCREATE_FPU_PRESERVE,
&present_params,
NULL,
&exdev);
IDirect3D9_Release(d3d9ex);
if (FAILED(hr)) {
mp_err(plog, "Failed to create Direct3D device: %s\n",
mp_HRESULT_to_str(hr));
return NULL;
}
struct mp_hwdec_ctx *ctx = talloc_ptrtype(NULL, ctx);
*ctx = (struct mp_hwdec_ctx) {
.type = HWDEC_D3D11VA_COPY,
.ctx = exdev,
.destroy = d3d9_destroy_dev,
.av_device_ref = d3d9_wrap_device_ref((IDirect3DDevice9 *)exdev),
};
if (!ctx->av_device_ref) {
mp_err(plog, "Failed to allocate AVHWDeviceContext.\n");
d3d9_destroy_dev(ctx);
return NULL;
}
return ctx;
}
const struct vd_lavc_hwdec mp_vd_lavc_dxva2 = {
.type = HWDEC_DXVA2,
.image_format = IMGFMT_DXVA2,
.generic_hwaccel = true,
.set_hwframes = true,
.hwframes_refine = d3d_hwframes_refine,
};
const struct vd_lavc_hwdec mp_vd_lavc_dxva2_copy = {
.type = HWDEC_DXVA2_COPY,
.copying = true,
.image_format = IMGFMT_DXVA2,
.generic_hwaccel = true,
.create_dev = d3d9_create_dev,
.set_hwframes = true,
.hwframes_refine = d3d_hwframes_refine,
.delay_queue = HWDEC_DELAY_QUEUE_COUNT,
};
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