[libav.git] / libavutil / hwcontext_dxva2.c

/*
 * This file is part of Libav.
 *
 * Libav 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.
 *
 * Libav 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 Libav; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include <windows.h>

#if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600
#undef _WIN32_WINNT
#define _WIN32_WINNT 0x0600
#endif
#define DXVA2API_USE_BITFIELDS
#define COBJMACROS

#include <d3d9.h>
#include <dxva2api.h>
#include <initguid.h>

#include "common.h"
#include "hwcontext.h"
#include "hwcontext_dxva2.h"
#include "hwcontext_internal.h"
#include "imgutils.h"
#include "pixdesc.h"
#include "pixfmt.h"

typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
typedef HRESULT WINAPI pCreateDeviceManager9(UINT *, IDirect3DDeviceManager9 **);

typedef struct DXVA2FramesContext {
    IDirect3DSurface9 **surfaces_internal;
    int              nb_surfaces_used;

    HANDLE  device_handle;
    IDirectXVideoAccelerationService *service;

    D3DFORMAT format;
} DXVA2FramesContext;

typedef struct DXVA2DevicePriv {
    HMODULE d3dlib;
    HMODULE dxva2lib;

    HANDLE device_handle;

    IDirect3D9       *d3d9;
    IDirect3DDevice9 *d3d9device;
} DXVA2DevicePriv;

static const struct {
    D3DFORMAT d3d_format;
    enum AVPixelFormat pix_fmt;
} supported_formats[] = {
    { MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
    { MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
};

DEFINE_GUID(video_decoder_service,   0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);

static void dxva2_frames_uninit(AVHWFramesContext *ctx)
{
    AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
    AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
    DXVA2FramesContext *s = ctx->internal->priv;
    int i;

    if (frames_hwctx->decoder_to_release)
        IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);

    if (s->surfaces_internal) {
        for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
            if (s->surfaces_internal[i])
                IDirect3DSurface9_Release(s->surfaces_internal[i]);
        }
    }
    av_freep(&s->surfaces_internal);

    if (s->service) {
        IDirectXVideoAccelerationService_Release(s->service);
        s->service = NULL;
    }

    if (s->device_handle != INVALID_HANDLE_VALUE) {
        IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
        s->device_handle = INVALID_HANDLE_VALUE;
    }
}

static AVBufferRef *dxva2_pool_alloc(void *opaque, int size)
{
    AVHWFramesContext      *ctx = (AVHWFramesContext*)opaque;
    DXVA2FramesContext       *s = ctx->internal->priv;
    AVDXVA2FramesContext *hwctx = ctx->hwctx;

    if (s->nb_surfaces_used < hwctx->nb_surfaces) {
        s->nb_surfaces_used++;
        return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
                                sizeof(*hwctx->surfaces), NULL, 0, 0);
    }

    return NULL;
}

static int dxva2_init_pool(AVHWFramesContext *ctx)
{
    AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
    AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
    DXVA2FramesContext              *s = ctx->internal->priv;
    int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);

    int i;
    HRESULT hr;

    if (ctx->initial_pool_size <= 0)
        return 0;

    hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
        return AVERROR_UNKNOWN;
    }

    hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
                                                 s->device_handle,
                                                 decode ? &video_decoder_service : &video_processor_service,
                                                 (void **)&s->service);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
        return AVERROR_UNKNOWN;
    }

    for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
        if (ctx->sw_format == supported_formats[i].pix_fmt) {
            s->format = supported_formats[i].d3d_format;
            break;
        }
    }
    if (i == FF_ARRAY_ELEMS(supported_formats)) {
        av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
               av_get_pix_fmt_name(ctx->sw_format));
        return AVERROR(EINVAL);
    }

    s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
                                            sizeof(*s->surfaces_internal));
    if (!s->surfaces_internal)
        return AVERROR(ENOMEM);

    hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
                                                        ctx->width, ctx->height,
                                                        ctx->initial_pool_size - 1,
                                                        s->format, D3DPOOL_DEFAULT, 0,
                                                        frames_hwctx->surface_type,
                                                        s->surfaces_internal, NULL);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
        return AVERROR_UNKNOWN;
    }

    ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
                                                        ctx, dxva2_pool_alloc, NULL);
    if (!ctx->internal->pool_internal)
        return AVERROR(ENOMEM);

    frames_hwctx->surfaces    = s->surfaces_internal;
    frames_hwctx->nb_surfaces = ctx->initial_pool_size;

    return 0;
}

static int dxva2_frames_init(AVHWFramesContext *ctx)
{
    AVDXVA2FramesContext *hwctx = ctx->hwctx;
    DXVA2FramesContext       *s = ctx->internal->priv;
    int ret;

    if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
        hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
        av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
               hwctx->surface_type);
        return AVERROR(EINVAL);
    }

    s->device_handle = INVALID_HANDLE_VALUE;

    /* init the frame pool if the caller didn't provide one */
    if (!ctx->pool) {
        ret = dxva2_init_pool(ctx);
        if (ret < 0) {
            av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
            return ret;
        }
    }

    return 0;
}

static int dxva2_get_buffer(AVHWFramesContext *ctx, AVFrame *frame)
{
    frame->buf[0] = av_buffer_pool_get(ctx->pool);
    if (!frame->buf[0])
        return AVERROR(ENOMEM);

    frame->data[3] = frame->buf[0]->data;
    frame->format  = AV_PIX_FMT_DXVA2_VLD;
    frame->width   = ctx->width;
    frame->height  = ctx->height;

    return 0;
}

static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
                                      enum AVHWFrameTransferDirection dir,
                                      enum AVPixelFormat **formats)
{
    enum AVPixelFormat *fmts;

    fmts = av_malloc_array(2, sizeof(*fmts));
    if (!fmts)
        return AVERROR(ENOMEM);

    fmts[0] = ctx->sw_format;
    fmts[1] = AV_PIX_FMT_NONE;

    *formats = fmts;

    return 0;
}

static void dxva2_unmap_frame(AVHWFramesContext *ctx, HWMapDescriptor *hwmap)
{
    IDirect3DSurface9 *surface = (IDirect3DSurface9*)hwmap->source->data[3];
    IDirect3DSurface9_UnlockRect(surface);
}

static int dxva2_map_frame(AVHWFramesContext *ctx, AVFrame *dst, const AVFrame *src,
                           int flags)
{
    IDirect3DSurface9 *surface = (IDirect3DSurface9*)src->data[3];
    D3DSURFACE_DESC    surfaceDesc;
    D3DLOCKED_RECT     LockedRect;
    HRESULT            hr;
    int i, err, nb_planes;

    nb_planes = av_pix_fmt_count_planes(dst->format);

    hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
        return AVERROR_UNKNOWN;
    }

    hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
                                    flags & AV_HWFRAME_MAP_READ ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
        return AVERROR_UNKNOWN;
    }

    err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
                                dxva2_unmap_frame, NULL);
    if (err < 0)
        goto fail;

    for (i = 0; i < nb_planes; i++)
        dst->linesize[i] = LockedRect.Pitch;

    av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
                           (uint8_t*)LockedRect.pBits, dst->linesize);

    return 0;
fail:
    IDirect3DSurface9_UnlockRect(surface);
    return err;
}

static int dxva2_transfer_data(AVHWFramesContext *ctx, AVFrame *dst,
                               const AVFrame *src)
{
    int download = !!src->hw_frames_ctx;

    AVFrame *map;
    int ret, i;

    map = av_frame_alloc();
    if (!map)
        return AVERROR(ENOMEM);
    map->format = dst->format;

    ret = dxva2_map_frame(ctx, map, download ? src : dst,
                          download ? AV_HWFRAME_MAP_READ : AV_HWFRAME_MAP_WRITE);
    if (ret < 0)
        goto fail;

    if (download) {
        ptrdiff_t src_linesize[4], dst_linesize[4];
        for (i = 0; i < 4; i++) {
            dst_linesize[i] = dst->linesize[i];
            src_linesize[i] = map->linesize[i];
        }
        av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
                              ctx->sw_format, src->width, src->height);
    } else {
        av_image_copy(map->data, map->linesize, src->data, src->linesize,
                      ctx->sw_format, src->width, src->height);
    }

fail:
    av_frame_free(&map);
    return ret;
}

static int dxva2_map_from(AVHWFramesContext *ctx,
                          AVFrame *dst, const AVFrame *src, int flags)
{
    int err;

    err = dxva2_map_frame(ctx, dst, src, flags);
    if (err < 0)
        return err;

    err = av_frame_copy_props(dst, src);
    if (err < 0)
        return err;

    return 0;
}

static void dxva2_device_free(AVHWDeviceContext *ctx)
{
    AVDXVA2DeviceContext *hwctx = ctx->hwctx;
    DXVA2DevicePriv       *priv = ctx->user_opaque;

    if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
        IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);

    if (hwctx->devmgr)
        IDirect3DDeviceManager9_Release(hwctx->devmgr);

    if (priv->d3d9device)
        IDirect3DDevice9_Release(priv->d3d9device);

    if (priv->d3d9)
        IDirect3D9_Release(priv->d3d9);

    if (priv->d3dlib)
        FreeLibrary(priv->d3dlib);

    if (priv->dxva2lib)
        FreeLibrary(priv->dxva2lib);

    av_freep(&ctx->user_opaque);
}

static int dxva2_device_create(AVHWDeviceContext *ctx, const char *device,
                               AVDictionary *opts, int flags)
{
    AVDXVA2DeviceContext *hwctx = ctx->hwctx;
    DXVA2DevicePriv *priv;

    pDirect3DCreate9 *createD3D = NULL;
    pCreateDeviceManager9 *createDeviceManager = NULL;
    D3DPRESENT_PARAMETERS d3dpp = {0};
    D3DDISPLAYMODE        d3ddm;
    unsigned resetToken = 0;
    UINT adapter = D3DADAPTER_DEFAULT;
    HRESULT hr;

    if (device)
        adapter = atoi(device);

    priv = av_mallocz(sizeof(*priv));
    if (!priv)
        return AVERROR(ENOMEM);

    ctx->user_opaque = priv;
    ctx->free        = dxva2_device_free;

    priv->device_handle = INVALID_HANDLE_VALUE;

    priv->d3dlib = LoadLibrary("d3d9.dll");
    if (!priv->d3dlib) {
        av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
        return AVERROR_UNKNOWN;
    }
    priv->dxva2lib = LoadLibrary("dxva2.dll");
    if (!priv->dxva2lib) {
        av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
        return AVERROR_UNKNOWN;
    }

    createD3D = (pDirect3DCreate9 *)GetProcAddress(priv->d3dlib, "Direct3DCreate9");
    if (!createD3D) {
        av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
        return AVERROR_UNKNOWN;
    }
    createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(priv->dxva2lib,
                                                                  "DXVA2CreateDirect3DDeviceManager9");
    if (!createDeviceManager) {
        av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
        return AVERROR_UNKNOWN;
    }

    priv->d3d9 = createD3D(D3D_SDK_VERSION);
    if (!priv->d3d9) {
        av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
        return AVERROR_UNKNOWN;
    }

    IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
    d3dpp.Windowed         = TRUE;
    d3dpp.BackBufferWidth  = 640;
    d3dpp.BackBufferHeight = 480;
    d3dpp.BackBufferCount  = 0;
    d3dpp.BackBufferFormat = d3ddm.Format;
    d3dpp.SwapEffect       = D3DSWAPEFFECT_DISCARD;
    d3dpp.Flags            = D3DPRESENTFLAG_VIDEO;

    hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
                                 D3DCREATE_SOFTWARE_VERTEXPROCESSING | D3DCREATE_MULTITHREADED | D3DCREATE_FPU_PRESERVE,
                                 &d3dpp, &priv->d3d9device);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
        return AVERROR_UNKNOWN;
    }

    hr = createDeviceManager(&resetToken, &hwctx->devmgr);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
        return AVERROR_UNKNOWN;
    }

    hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
        return AVERROR_UNKNOWN;
    }

    hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
    if (FAILED(hr)) {
        av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
        return AVERROR_UNKNOWN;
    }

    return 0;
}

const HWContextType ff_hwcontext_type_dxva2 = {
    .type                 = AV_HWDEVICE_TYPE_DXVA2,
    .name                 = "DXVA2",

    .device_hwctx_size    = sizeof(AVDXVA2DeviceContext),
    .frames_hwctx_size    = sizeof(AVDXVA2FramesContext),
    .frames_priv_size     = sizeof(DXVA2FramesContext),

    .device_create        = dxva2_device_create,
    .frames_init          = dxva2_frames_init,
    .frames_uninit        = dxva2_frames_uninit,
    .frames_get_buffer    = dxva2_get_buffer,
    .transfer_get_formats = dxva2_transfer_get_formats,
    .transfer_data_to     = dxva2_transfer_data,
    .transfer_data_from   = dxva2_transfer_data,
    .map_from             = dxva2_map_from,

    .pix_fmts             = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
};
Commit	Line	Data
c46db38c AK	1	/*
	2	* This file is part of Libav.
	3	*
	4	* Libav is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU Lesser General Public
	6	* License as published by the Free Software Foundation; either
	7	* version 2.1 of the License, or (at your option) any later version.
	8	*
	9	* Libav is distributed in the hope that it will be useful,
	10	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	11	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	12	* Lesser General Public License for more details.
	13	*
	14	* You should have received a copy of the GNU Lesser General Public
	15	* License along with Libav; if not, write to the Free Software
	16	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	17	*/
	18
	19	#include <windows.h>
	20
	21	#if !defined(_WIN32_WINNT) \|\| _WIN32_WINNT < 0x0600
	22	#undef _WIN32_WINNT
	23	#define _WIN32_WINNT 0x0600
	24	#endif
	25	#define DXVA2API_USE_BITFIELDS
	26	#define COBJMACROS
	27
	28	#include <d3d9.h>
	29	#include <dxva2api.h>
	30	#include <initguid.h>
	31
	32	#include "common.h"
	33	#include "hwcontext.h"
	34	#include "hwcontext_dxva2.h"
	35	#include "hwcontext_internal.h"
	36	#include "imgutils.h"
	37	#include "pixdesc.h"
	38	#include "pixfmt.h"
	39
8e70385a AK	40	typedef IDirect3D9* WINAPI pDirect3DCreate9(UINT);
	41	typedef HRESULT WINAPI pCreateDeviceManager9(UINT , IDirect3DDeviceManager9 *);
	42
c46db38c AK	43	typedef struct DXVA2FramesContext {
	44	IDirect3DSurface9 **surfaces_internal;
	45	int nb_surfaces_used;
	46
	47	HANDLE device_handle;
	48	IDirectXVideoAccelerationService *service;
	49
	50	D3DFORMAT format;
	51	} DXVA2FramesContext;
	52
8e70385a AK	53	typedef struct DXVA2DevicePriv {
	54	HMODULE d3dlib;
	55	HMODULE dxva2lib;
	56
	57	HANDLE device_handle;
	58
	59	IDirect3D9 *d3d9;
	60	IDirect3DDevice9 *d3d9device;
	61	} DXVA2DevicePriv;
	62
c46db38c AK	63	static const struct {
	64	D3DFORMAT d3d_format;
	65	enum AVPixelFormat pix_fmt;
	66	} supported_formats[] = {
	67	{ MKTAG('N', 'V', '1', '2'), AV_PIX_FMT_NV12 },
2ef87815	68	{ MKTAG('P', '0', '1', '0'), AV_PIX_FMT_P010 },
c46db38c AK	69	};
	70
	71	DEFINE_GUID(video_decoder_service, 0xfc51a551, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
	72	DEFINE_GUID(video_processor_service, 0xfc51a552, 0xd5e7, 0x11d9, 0xaf, 0x55, 0x00, 0x05, 0x4e, 0x43, 0xff, 0x02);
	73
	74	static void dxva2_frames_uninit(AVHWFramesContext *ctx)
	75	{
	76	AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
	77	AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
	78	DXVA2FramesContext *s = ctx->internal->priv;
	79	int i;
	80
	81	if (frames_hwctx->decoder_to_release)
	82	IDirectXVideoDecoder_Release(frames_hwctx->decoder_to_release);
	83
	84	if (s->surfaces_internal) {
	85	for (i = 0; i < frames_hwctx->nb_surfaces; i++) {
	86	if (s->surfaces_internal[i])
	87	IDirect3DSurface9_Release(s->surfaces_internal[i]);
	88	}
	89	}
	90	av_freep(&s->surfaces_internal);
	91
	92	if (s->service) {
	93	IDirectXVideoAccelerationService_Release(s->service);
	94	s->service = NULL;
	95	}
	96
	97	if (s->device_handle != INVALID_HANDLE_VALUE) {
	98	IDirect3DDeviceManager9_CloseDeviceHandle(device_hwctx->devmgr, s->device_handle);
	99	s->device_handle = INVALID_HANDLE_VALUE;
	100	}
	101	}
	102
	103	static AVBufferRef dxva2_pool_alloc(void opaque, int size)
	104	{
	105	AVHWFramesContext ctx = (AVHWFramesContext)opaque;
	106	DXVA2FramesContext *s = ctx->internal->priv;
	107	AVDXVA2FramesContext *hwctx = ctx->hwctx;
	108
	109	if (s->nb_surfaces_used < hwctx->nb_surfaces) {
	110	s->nb_surfaces_used++;
	111	return av_buffer_create((uint8_t*)s->surfaces_internal[s->nb_surfaces_used - 1],
	112	sizeof(*hwctx->surfaces), NULL, 0, 0);
	113	}
	114
	115	return NULL;
	116	}
	117
	118	static int dxva2_init_pool(AVHWFramesContext *ctx)
	119	{
	120	AVDXVA2FramesContext *frames_hwctx = ctx->hwctx;
	121	AVDXVA2DeviceContext *device_hwctx = ctx->device_ctx->hwctx;
	122	DXVA2FramesContext *s = ctx->internal->priv;
	123	int decode = (frames_hwctx->surface_type == DXVA2_VideoDecoderRenderTarget);
	124
	125	int i;
	126	HRESULT hr;
	127
	128	if (ctx->initial_pool_size <= 0)
	129	return 0;
	130
	131	hr = IDirect3DDeviceManager9_OpenDeviceHandle(device_hwctx->devmgr, &s->device_handle);
	132	if (FAILED(hr)) {
133	av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
134	return AVERROR_UNKNOWN;
135	}
136
137	hr = IDirect3DDeviceManager9_GetVideoService(device_hwctx->devmgr,
138	s->device_handle,
139	decode ? &video_decoder_service : &video_processor_service,
140	(void **)&s->service);
141	if (FAILED(hr)) {
142	av_log(ctx, AV_LOG_ERROR, "Failed to create the video service\n");
143	return AVERROR_UNKNOWN;
144	}
145
146	for (i = 0; i < FF_ARRAY_ELEMS(supported_formats); i++) {
147	if (ctx->sw_format == supported_formats[i].pix_fmt) {
148	s->format = supported_formats[i].d3d_format;
149	break;
150	}
151	}
152	if (i == FF_ARRAY_ELEMS(supported_formats)) {
153	av_log(ctx, AV_LOG_ERROR, "Unsupported pixel format: %s\n",
154	av_get_pix_fmt_name(ctx->sw_format));
155	return AVERROR(EINVAL);
156	}
157
158	s->surfaces_internal = av_mallocz_array(ctx->initial_pool_size,
159	sizeof(*s->surfaces_internal));
160	if (!s->surfaces_internal)
161	return AVERROR(ENOMEM);
162
163	hr = IDirectXVideoAccelerationService_CreateSurface(s->service,
164	ctx->width, ctx->height,
165	ctx->initial_pool_size - 1,
166	s->format, D3DPOOL_DEFAULT, 0,
167	frames_hwctx->surface_type,
168	s->surfaces_internal, NULL);
169	if (FAILED(hr)) {
170	av_log(ctx, AV_LOG_ERROR, "Could not create the surfaces\n");
171	return AVERROR_UNKNOWN;
172	}
173
174	ctx->internal->pool_internal = av_buffer_pool_init2(sizeof(*s->surfaces_internal),
175	ctx, dxva2_pool_alloc, NULL);
176	if (!ctx->internal->pool_internal)
177	return AVERROR(ENOMEM);
178
179	frames_hwctx->surfaces = s->surfaces_internal;
180	frames_hwctx->nb_surfaces = ctx->initial_pool_size;
181
182	return 0;
183	}
184
185	static int dxva2_frames_init(AVHWFramesContext *ctx)
186	{
187	AVDXVA2FramesContext *hwctx = ctx->hwctx;
188	DXVA2FramesContext *s = ctx->internal->priv;
189	int ret;
190
191	if (hwctx->surface_type != DXVA2_VideoDecoderRenderTarget &&
192	hwctx->surface_type != DXVA2_VideoProcessorRenderTarget) {
193	av_log(ctx, AV_LOG_ERROR, "Unknown surface type: %lu\n",
194	hwctx->surface_type);
195	return AVERROR(EINVAL);
196	}
197
198	s->device_handle = INVALID_HANDLE_VALUE;
199
200	/* init the frame pool if the caller didn't provide one */
201	if (!ctx->pool) {
202	ret = dxva2_init_pool(ctx);
203	if (ret < 0) {
204	av_log(ctx, AV_LOG_ERROR, "Error creating an internal frame pool\n");
205	return ret;
206	}
207	}
208
209	return 0;
210	}
211
212	static int dxva2_get_buffer(AVHWFramesContext ctx, AVFrame frame)
213	{
214	frame->buf[0] = av_buffer_pool_get(ctx->pool);
215	if (!frame->buf[0])
216	return AVERROR(ENOMEM);
217
218	frame->data[3] = frame->buf[0]->data;
219	frame->format = AV_PIX_FMT_DXVA2_VLD;
220	frame->width = ctx->width;
221	frame->height = ctx->height;
222
223	return 0;
224	}
225
226	static int dxva2_transfer_get_formats(AVHWFramesContext *ctx,
227	enum AVHWFrameTransferDirection dir,
228	enum AVPixelFormat **formats)
229	{
230	enum AVPixelFormat *fmts;
231
232	fmts = av_malloc_array(2, sizeof(*fmts));
233	if (!fmts)
234	return AVERROR(ENOMEM);
235
236	fmts[0] = ctx->sw_format;
237	fmts[1] = AV_PIX_FMT_NONE;
238
239	*formats = fmts;
240
241	return 0;
242	}
243
91097376 AK	244	static void dxva2_unmap_frame(AVHWFramesContext ctx, HWMapDescriptor hwmap)
	245	{
	246	IDirect3DSurface9 surface = (IDirect3DSurface9)hwmap->source->data[3];
	247	IDirect3DSurface9_UnlockRect(surface);
	248	}
	249
	250	static int dxva2_map_frame(AVHWFramesContext ctx, AVFrame dst, const AVFrame *src,
	251	int flags)
c46db38c	252	{
91097376	253	IDirect3DSurface9 surface = (IDirect3DSurface9)src->data[3];
c46db38c AK	254	D3DSURFACE_DESC surfaceDesc;
	255	D3DLOCKED_RECT LockedRect;
	256	HRESULT hr;
91097376	257	int i, err, nb_planes;
c46db38c	258
91097376	259	nb_planes = av_pix_fmt_count_planes(dst->format);
c46db38c AK	260
	261	hr = IDirect3DSurface9_GetDesc(surface, &surfaceDesc);
	262	if (FAILED(hr)) {
	263	av_log(ctx, AV_LOG_ERROR, "Error getting a surface description\n");
	264	return AVERROR_UNKNOWN;
	265	}
	266
	267	hr = IDirect3DSurface9_LockRect(surface, &LockedRect, NULL,
91097376	268	flags & AV_HWFRAME_MAP_READ ? D3DLOCK_READONLY : D3DLOCK_DISCARD);
c46db38c AK	269	if (FAILED(hr)) {
	270	av_log(ctx, AV_LOG_ERROR, "Unable to lock DXVA2 surface\n");
	271	return AVERROR_UNKNOWN;
	272	}
	273
91097376 AK	274	err = ff_hwframe_map_create(src->hw_frames_ctx, dst, src,
	275	dxva2_unmap_frame, NULL);
	276	if (err < 0)
	277	goto fail;
	278
	279	for (i = 0; i < nb_planes; i++)
	280	dst->linesize[i] = LockedRect.Pitch;
	281
	282	av_image_fill_pointers(dst->data, dst->format, surfaceDesc.Height,
	283	(uint8_t*)LockedRect.pBits, dst->linesize);
	284
	285	return 0;
	286	fail:
	287	IDirect3DSurface9_UnlockRect(surface);
	288	return err;
	289	}
	290
	291	static int dxva2_transfer_data(AVHWFramesContext ctx, AVFrame dst,
	292	const AVFrame *src)
	293	{
	294	int download = !!src->hw_frames_ctx;
	295
	296	AVFrame *map;
	297	int ret, i;
2ef87815	298
91097376 AK	299	map = av_frame_alloc();
	300	if (!map)
	301	return AVERROR(ENOMEM);
	302	map->format = dst->format;
	303
	304	ret = dxva2_map_frame(ctx, map, download ? src : dst,
	305	download ? AV_HWFRAME_MAP_READ : AV_HWFRAME_MAP_WRITE);
	306	if (ret < 0)
	307	goto fail;
2ef87815	308
c46db38c	309	if (download) {
91097376	310	ptrdiff_t src_linesize[4], dst_linesize[4];
f01f7a78	311	for (i = 0; i < 4; i++) {
91097376 AK	312	dst_linesize[i] = dst->linesize[i];
91097376 AK	313	src_linesize[i] = map->linesize[i];
f01f7a78	314	}
91097376	315	av_image_copy_uc_from(dst->data, dst_linesize, map->data, src_linesize,
f01f7a78	316	ctx->sw_format, src->width, src->height);
c46db38c	317	} else {
91097376	318	av_image_copy(map->data, map->linesize, src->data, src->linesize,
2ef87815	319	ctx->sw_format, src->width, src->height);
c46db38c AK	320	}
c46db38c AK	321
91097376 AK	322	fail:
	323	av_frame_free(&map);
	324	return ret;
	325	}
	326
	327	static int dxva2_map_from(AVHWFramesContext *ctx,
	328	AVFrame dst, const AVFrame src, int flags)
	329	{
	330	int err;
	331
	332	err = dxva2_map_frame(ctx, dst, src, flags);
	333	if (err < 0)
	334	return err;
	335
	336	err = av_frame_copy_props(dst, src);
	337	if (err < 0)
	338	return err;
c46db38c AK	339
	340	return 0;
	341	}
	342
8e70385a AK	343	static void dxva2_device_free(AVHWDeviceContext *ctx)
	344	{
	345	AVDXVA2DeviceContext *hwctx = ctx->hwctx;
	346	DXVA2DevicePriv *priv = ctx->user_opaque;
	347
	348	if (hwctx->devmgr && priv->device_handle != INVALID_HANDLE_VALUE)
	349	IDirect3DDeviceManager9_CloseDeviceHandle(hwctx->devmgr, priv->device_handle);
	350
	351	if (hwctx->devmgr)
	352	IDirect3DDeviceManager9_Release(hwctx->devmgr);
	353
	354	if (priv->d3d9device)
	355	IDirect3DDevice9_Release(priv->d3d9device);
	356
	357	if (priv->d3d9)
	358	IDirect3D9_Release(priv->d3d9);
	359
	360	if (priv->d3dlib)
	361	FreeLibrary(priv->d3dlib);
	362
	363	if (priv->dxva2lib)
	364	FreeLibrary(priv->dxva2lib);
	365
	366	av_freep(&ctx->user_opaque);
	367	}
	368
	369	static int dxva2_device_create(AVHWDeviceContext ctx, const char device,
	370	AVDictionary *opts, int flags)
	371	{
	372	AVDXVA2DeviceContext *hwctx = ctx->hwctx;
	373	DXVA2DevicePriv *priv;
	374
	375	pDirect3DCreate9 *createD3D = NULL;
	376	pCreateDeviceManager9 *createDeviceManager = NULL;
	377	D3DPRESENT_PARAMETERS d3dpp = {0};
	378	D3DDISPLAYMODE d3ddm;
	379	unsigned resetToken = 0;
	380	UINT adapter = D3DADAPTER_DEFAULT;
	381	HRESULT hr;
	382
	383	if (device)
	384	adapter = atoi(device);
	385
	386	priv = av_mallocz(sizeof(*priv));
	387	if (!priv)
	388	return AVERROR(ENOMEM);
	389
	390	ctx->user_opaque = priv;
	391	ctx->free = dxva2_device_free;
	392
	393	priv->device_handle = INVALID_HANDLE_VALUE;
	394
	395	priv->d3dlib = LoadLibrary("d3d9.dll");
	396	if (!priv->d3dlib) {
	397	av_log(ctx, AV_LOG_ERROR, "Failed to load D3D9 library\n");
	398	return AVERROR_UNKNOWN;
	399	}
	400	priv->dxva2lib = LoadLibrary("dxva2.dll");
	401	if (!priv->dxva2lib) {
	402	av_log(ctx, AV_LOG_ERROR, "Failed to load DXVA2 library\n");
	403	return AVERROR_UNKNOWN;
	404	}
	405
	406	createD3D = (pDirect3DCreate9 *)GetProcAddress(priv->d3dlib, "Direct3DCreate9");
407	if (!createD3D) {
408	av_log(ctx, AV_LOG_ERROR, "Failed to locate Direct3DCreate9\n");
409	return AVERROR_UNKNOWN;
410	}
411	createDeviceManager = (pCreateDeviceManager9 *)GetProcAddress(priv->dxva2lib,
412	"DXVA2CreateDirect3DDeviceManager9");
413	if (!createDeviceManager) {
414	av_log(ctx, AV_LOG_ERROR, "Failed to locate DXVA2CreateDirect3DDeviceManager9\n");
415	return AVERROR_UNKNOWN;
416	}
417
418	priv->d3d9 = createD3D(D3D_SDK_VERSION);
419	if (!priv->d3d9) {
420	av_log(ctx, AV_LOG_ERROR, "Failed to create IDirect3D object\n");
421	return AVERROR_UNKNOWN;
422	}
423
424	IDirect3D9_GetAdapterDisplayMode(priv->d3d9, adapter, &d3ddm);
425	d3dpp.Windowed = TRUE;
426	d3dpp.BackBufferWidth = 640;
427	d3dpp.BackBufferHeight = 480;
428	d3dpp.BackBufferCount = 0;
429	d3dpp.BackBufferFormat = d3ddm.Format;
430	d3dpp.SwapEffect = D3DSWAPEFFECT_DISCARD;
431	d3dpp.Flags = D3DPRESENTFLAG_VIDEO;
432
433	hr = IDirect3D9_CreateDevice(priv->d3d9, adapter, D3DDEVTYPE_HAL, GetShellWindow(),
434	D3DCREATE_SOFTWARE_VERTEXPROCESSING \| D3DCREATE_MULTITHREADED \| D3DCREATE_FPU_PRESERVE,
435	&d3dpp, &priv->d3d9device);
436	if (FAILED(hr)) {
437	av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device\n");
438	return AVERROR_UNKNOWN;
439	}
440
441	hr = createDeviceManager(&resetToken, &hwctx->devmgr);
442	if (FAILED(hr)) {
443	av_log(ctx, AV_LOG_ERROR, "Failed to create Direct3D device manager\n");
444	return AVERROR_UNKNOWN;
445	}
446
447	hr = IDirect3DDeviceManager9_ResetDevice(hwctx->devmgr, priv->d3d9device, resetToken);
448	if (FAILED(hr)) {
449	av_log(ctx, AV_LOG_ERROR, "Failed to bind Direct3D device to device manager\n");
450	return AVERROR_UNKNOWN;
451	}
452
453	hr = IDirect3DDeviceManager9_OpenDeviceHandle(hwctx->devmgr, &priv->device_handle);
454	if (FAILED(hr)) {
455	av_log(ctx, AV_LOG_ERROR, "Failed to open device handle\n");
456	return AVERROR_UNKNOWN;
457	}
458
459	return 0;
460	}
461
c46db38c AK	462	const HWContextType ff_hwcontext_type_dxva2 = {
	463	.type = AV_HWDEVICE_TYPE_DXVA2,
	464	.name = "DXVA2",
	465
	466	.device_hwctx_size = sizeof(AVDXVA2DeviceContext),
	467	.frames_hwctx_size = sizeof(AVDXVA2FramesContext),
	468	.frames_priv_size = sizeof(DXVA2FramesContext),
	469
8e70385a	470	.device_create = dxva2_device_create,
c46db38c AK	471	.frames_init = dxva2_frames_init,
	472	.frames_uninit = dxva2_frames_uninit,
	473	.frames_get_buffer = dxva2_get_buffer,
	474	.transfer_get_formats = dxva2_transfer_get_formats,
	475	.transfer_data_to = dxva2_transfer_data,
	476	.transfer_data_from = dxva2_transfer_data,
91097376	477	.map_from = dxva2_map_from,
c46db38c AK	478
	479	.pix_fmts = (const enum AVPixelFormat[]){ AV_PIX_FMT_DXVA2_VLD, AV_PIX_FMT_NONE },
	480	};