modules/video_chroma/d3d11_fmt.h

   1 /*****************************************************************************
   2  * d3d11_fmt.h : D3D11 helper calls
   3  *****************************************************************************
   4  * Copyright © 2017 VLC authors, VideoLAN and VideoLabs
   5  *
   6  * Authors: Steve Lhomme <robux4@gmail.com>
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU Lesser General Public License as published by
  10  * the Free Software Foundation; either version 2.1 of the License, or
  11  * (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16  * GNU Lesser General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Lesser General Public License
  19  * along with this program; if not, write to the Free Software Foundation,
  20  * Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  21  *****************************************************************************/
  22
  23 #ifndef VLC_VIDEOCHROMA_D3D11_FMT_H_
  24 #define VLC_VIDEOCHROMA_D3D11_FMT_H_
  25
  26 #include <d3d11.h>
  27
  28 #include "dxgi_fmt.h"
  29
  30 DEFINE_GUID(GUID_CONTEXT_MUTEX, 0x472e8835, 0x3f8e, 0x4f93, 0xa0, 0xcb, 0x25, 0x79, 0x77, 0x6c, 0xed, 0x86);
  31
  32 typedef struct
  33 {
  34     ID3D11Device             *d3ddevice;       /* D3D device */
  35     ID3D11DeviceContext      *d3dcontext;      /* D3D context */
  36 } d3d11_handle_t;
  37
  38 /* owned by the vout for VLC_CODEC_D3D11_OPAQUE */
  39 struct picture_sys_t
  40 {
  41     ID3D11VideoDecoderOutputView  *decoder; /* may be NULL for pictures from the pool */
  42     union {
  43         ID3D11Texture2D           *texture[D3D11_MAX_SHADER_VIEW];
  44         ID3D11Resource            *resource[D3D11_MAX_SHADER_VIEW];
  45     };
  46     ID3D11DeviceContext           *context;
  47     unsigned                      slice_index;
  48     ID3D11VideoProcessorInputView  *processorInput;  /* when used as processor input */
  49     ID3D11VideoProcessorOutputView *processorOutput; /* when used as processor output */
  50     ID3D11ShaderResourceView      *resourceView[D3D11_MAX_SHADER_VIEW];
  51     DXGI_FORMAT                   formatTexture;
  52 };
  53
  54 #include "../codec/avcodec/va_surface.h"
  55
  56 picture_sys_t *ActivePictureSys(picture_t *p_pic);
  57
  58 /* index to use for texture/resource that use a known DXGI format
  59  * (ie not DXGI_FORMAT_UNKNWON) */
  60 #define KNOWN_DXGI_INDEX   0
  61
  62 static inline bool is_d3d11_opaque(vlc_fourcc_t chroma)
  63 {
  64     return chroma == VLC_CODEC_D3D11_OPAQUE ||
  65            chroma == VLC_CODEC_D3D11_OPAQUE_10B;
  66 }
  67
  68 void AcquirePictureSys(picture_sys_t *p_sys);
  69
  70 void ReleasePictureSys(picture_sys_t *p_sys);
  71
  72 /* map texture planes to resource views */
  73 int AllocateShaderView(vlc_object_t *obj, ID3D11Device *d3ddevice,
  74                               const d3d_format_t *format,
  75                               ID3D11Texture2D *p_texture[D3D11_MAX_SHADER_VIEW], UINT slice_index,
  76                               ID3D11ShaderResourceView *resourceView[D3D11_MAX_SHADER_VIEW]);
  77
  78 HRESULT D3D11_CreateDevice(vlc_object_t *obj, HINSTANCE hdecoder_dll,
  79                                          bool hw_decoding,
  80                                          d3d11_handle_t *p_hd3d11);
  81
  82 bool isXboxHardware(ID3D11Device *d3ddev);
  83 bool isNvidiaHardware(ID3D11Device *d3ddev);
  84 IDXGIAdapter *D3D11DeviceAdapter(ID3D11Device *d3ddev);
  85
  86 static inline bool DeviceSupportsFormat(ID3D11Device *d3ddevice,
  87                                         DXGI_FORMAT format, UINT supportFlags)
  88 {
  89     UINT i_formatSupport;
  90     return SUCCEEDED( ID3D11Device_CheckFormatSupport(d3ddevice, format,
  91                                                       &i_formatSupport) )
  92             && ( i_formatSupport & supportFlags ) == supportFlags;
  93 }
  94
  95 const d3d_format_t *FindD3D11Format(ID3D11Device *d3ddevice,
  96                                                   vlc_fourcc_t i_src_chroma,
  97                                                   uint8_t bits_per_channel,
  98                                                   bool allow_opaque,
  99                                                   UINT supportFlags);
 100
 101 int AllocateTextures(vlc_object_t *obj, d3d11_handle_t *hd3d11,
 102                      const d3d_format_t *cfg, const video_format_t *fmt,
 103                      unsigned pool_size, ID3D11Texture2D *textures[]);
 104
 105 #endif /* include-guard */