Commit Graph

9 Commits

Author SHA1 Message Date
Jan Ekström fc29620ec8 vo_gpu/d3d11: add support for configuring swap chain color space
By default utilizes the color space of the desktop on which the
swap chain is located. If a specific value is defined, it will be
instead be utilized.

Enables configuration of the PQ color space (BT.2020 primaries,
PQ transfer function) for HDR.

Additionally, signals the swap chain color space to the renderer,
so that the render looks correct without having to specify
target-trc or target-prim manually.

Due to all of the APIs being Win10+ only, will only work starting
with Windows 10.
2019-10-30 02:41:25 +02:00
Jan Ekström 93dd77b38e vo_gpu/d3d11: add helpers for getting names for DXGI formats & CSPs
Additionally, define the few enum values that are currently missing
in mingw-w64 headers.
2019-10-30 02:41:25 +02:00
Jan Ekström 684ffd13b4 vo_gpu/d3d11: fixup adapter selection by switching it all to bstr
I did ponder if I should have done this right away, and it seems
like not doing it at first was a mistake.
2019-10-15 22:12:48 +03:00
Jan Ekström 648d785930 vo_gpu/d3d11: add support for configuring swap chain format
Query information on the system output most linked to the swap chain,
and either utilize a user-configured format, or either 8bit
RGBA or 10bit RGB with 2bit alpha depending on the system output's
bit depth.
2019-10-13 22:31:33 +11:00
Jan Ekström 1f76e69145 vo_gpu/d3d11: add adapter name validation and listing with "help"
Not the prettiest way to get it done, but seems to work.
2019-09-29 19:39:26 +03:00
Jan Ekström e6447e2e89 vo_gpu/d3d11: add an option for the adapter name
Set it from the adapter name in the d3d11 options.
2019-09-29 19:39:26 +03:00
James Ross-Gowan 1b80e124db vo_gpu: d3d11: implement tex_download()
This allows the new GPU screenshot functionality introduced in
9f595f3a80 to work with the D3D11 backend. It replaces the old window
screenshot functionality, which was shared between D3D11 and ANGLE. The
old code can be removed, since it's not needed by ANGLE anymore either.
2018-02-13 21:25:15 +11:00
James Ross-Gowan 4b014b3a81 vo_gpu: move d3d11_screenshot to shared code
This can be used by the ANGLE backend and ra_d3d11.
2017-11-07 20:27:13 +11:00
James Ross-Gowan 68eac1a1e7 vo_gpu: d3d11: initial implementation
This is a new RA/vo_gpu backend that uses Direct3D 11. The GLSL
generated by vo_gpu is cross-compiled to HLSL with SPIRV-Cross.

What works:

- All of mpv's internal shaders should work, including compute shaders.

- Some external shaders have been tested and work, including RAVU and
  adaptive-sharpen.

- Non-dumb mode works, even on very old hardware. Most features work at
  feature level 9_3 and all features work at feature level 10_0. Some
  features also work at feature level 9_1 and 9_2, but without high-bit-
  depth FBOs, it's not very useful. (Hardware this old is probably not
  fast enough for advanced features anyway.)

  Note: This is more compatible than ANGLE, which requires 9_3 to work
  at all (GLES 2.0,) and 10_1 for non-dumb-mode (GLES 3.0.)

- Hardware decoding with D3D11VA, including decoding of 10-bit formats
  without truncation to 8-bit.

What doesn't work / can be improved:

- PBO upload and direct rendering does not work yet. Direct rendering
  requires persistent-mapped PBOs because the decoder needs to be able
  to read data from images that have already been decoded and uploaded.
  Unfortunately, it seems like persistent-mapped PBOs are fundamentally
  incompatible with D3D11, which requires all resources to use driver-
  managed memory and requires memory to be unmapped (and hence pointers
  to be invalidated) when a resource is used in a draw or copy
  operation.

  However it might be possible to use D3D11's limited multithreading
  capabilities to emulate some features of PBOs, like asynchronous
  texture uploading.

- The blit() and clear() operations don't have equivalents in the D3D11
  API that handle all cases, so in most cases, they have to be emulated
  with a shader. This is currently done inside ra_d3d11, but ideally it
  would be done in generic code, so it can take advantage of mpv's
  shader generation utilities.

- SPIRV-Cross is used through a NIH C-compatible wrapper library, since
  it does not expose a C interface itself.

  The library is available here: https://github.com/rossy/crossc

- The D3D11 context could be made to support more modern DXGI features
  in future. For example, it should be possible to add support for
  high-bit-depth and HDR output with DXGI 1.5/1.6.
2017-11-07 20:27:13 +11:00