mirror of
https://github.com/mpv-player/mpv
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a02d77ba0d
For some reason, the d3d9/dxva2/d3d11 DLLs are still optional. But we don't need to try so hard to keep exact references. In fact, there's no reason to unload them at all. So load them once in a central place. For simplicity, the d3d9/d3d11 backends both load all DLLs. (They will error out only if the required DLLs could not be loaded.) In theory, we could just call LoadLibrary multiple times (without calling FreeLibrary), but I'm slightly worried that this could be detected as a "bug", or that the reference count could even have a low static limit that could be hit soon.
66 lines
2.3 KiB
C
66 lines
2.3 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 MPV_DECODE_D3D_H
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#define MPV_DECODE_D3D_H
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#include <windows.h>
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#include <inttypes.h>
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struct mp_image;
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struct lavc_ctx;
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struct d3d_decoded_format {
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DWORD dxfmt; // D3DFORMAT or DXGI_FORMAT
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const char *name; // informational string repr. of dxfmt_decoded
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int depth; // significant bits (not full size)
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int mpfmt; // IMGFMT_ with compatible memory layout and semantics
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};
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struct d3d_decoder_fmt {
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const GUID *guid;
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const struct d3d_decoded_format *format;
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};
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// Must call d3d_load_dlls() before accessing. Once this is done, the DLLs
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// remain loaded forever.
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extern HMODULE d3d11_dll, d3d9_dll, dxva2_dll;
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void d3d_load_dlls(void);
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int d3d_probe_codec(const char *codec);
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struct d3d_decoder_fmt d3d_select_decoder_mode(
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struct lavc_ctx *s, const GUID *device_guids, UINT n_guids,
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const struct d3d_decoded_format *formats, int n_formats,
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bool (*test_fmt_cb)(struct lavc_ctx *s, const GUID *guid,
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const struct d3d_decoded_format *fmt));
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char *d3d_decoder_guid_to_desc_buf(char *buf, size_t buf_size,
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const GUID *mode_guid);
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#define d3d_decoder_guid_to_desc(guid) d3d_decoder_guid_to_desc_buf((char[256]){0}, 256, (guid))
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void d3d_surface_align(struct lavc_ctx *s, int *w, int *h);
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unsigned d3d_decoder_config_score(struct lavc_ctx *s,
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GUID *guidConfigBitstreamEncryption,
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UINT ConfigBitstreamRaw);
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BOOL is_clearvideo(const GUID *mode_guid);
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void copy_nv12(struct mp_image *dest, uint8_t *src_bits,
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unsigned src_pitch, unsigned surf_height);
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#endif
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