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https://github.com/mpv-player/mpv
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16e0a39482
This extracts non-ANGLE specific code to d3d11_helpers.c, which is modeled after egl_helpers.c. Currently the only consumer is context_angle.c, but in future this may allow the D3D11 device and swapchain creation logic to be reused in other backends. Also includes small improvements to D3D11 device creation. It is now possible to create feature level 11_1 devices (though ANGLE does not support these,) and BGRA swapchains, which might be slightly more efficient than ARGB, since its the same format used by the compositor.
74 lines
2.4 KiB
C
74 lines
2.4 KiB
C
/*
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* This file is part of mpv.
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*
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* mpv is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* mpv is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef MP_D3D11_HELPERS_H_
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#define MP_D3D11_HELPERS_H_
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#include <stdbool.h>
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#include <windows.h>
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#include <d3d11.h>
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#include <dxgi1_2.h>
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struct d3d11_device_opts {
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// Allow a software (WARP) adapter. Note, sometimes a software adapter will
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// be used even when allow_warp is false. This is because, on Windows 8 and
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// up, if there are no hardware adapters, Windows will pretend the WARP
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// adapter is the primary hardware adapter.
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bool allow_warp;
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// Always use a WARP adapter. This is mainly for testing purposes.
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bool force_warp;
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// The maximum number of pending frames allowed to be queued to a swapchain
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int max_frame_latency;
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// The maximum Direct3D 11 feature level to attempt to create
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// If unset, defaults to D3D_FEATURE_LEVEL_11_0
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int max_feature_level;
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// The minimum Direct3D 11 feature level to attempt to create. If this is
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// not supported, device creation will fail.
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// If unset, defaults to D3D_FEATURE_LEVEL_9_1
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int min_feature_level;
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};
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bool mp_d3d11_create_present_device(struct mp_log *log,
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struct d3d11_device_opts *opts,
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ID3D11Device **dev_out);
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struct d3d11_swapchain_opts {
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HWND window;
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int width;
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int height;
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// Use DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL if possible
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bool flip;
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// Number of surfaces in the swapchain
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int length;
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// The BufferUsage value for swapchain surfaces. This should probably
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// contain DXGI_USAGE_RENDER_TARGET_OUTPUT.
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DXGI_USAGE usage;
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};
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bool mp_d3d11_create_swapchain(ID3D11Device *dev, struct mp_log *log,
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struct d3d11_swapchain_opts *opts,
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IDXGISwapChain **swapchain_out);
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#endif
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