mirror of
https://github.com/mpv-player/mpv.git
synced 2024-09-20 20:03:10 +02:00
262ceca731
Although D3D11 video decoding is unuspported on Windows 7, the associated APIs almost work. Where they fail is texture creation, where we try to create D3D11_BIND_DECODER surfaces. So specifically try to detect this situation. One issue is that once the hwdec interop is created, the damage is done, and it can't use another backend (because currently only 1 hwdec backend is supported). So that's where we prevent attempts to use it. It still can fail when trying to use d3d11va-copy (since that doesn't require an interop backend), but at that point we don't care anymore - dxva2(-copy) is tried before that anyway.
336 lines
11 KiB
C
336 lines
11 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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#include <initguid.h>
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#include <assert.h>
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#include <windows.h>
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#include <d3d11.h>
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#include <EGL/egl.h>
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#include <EGL/eglext.h>
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#include "angle_common.h"
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#include "angle_dynamic.h"
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#include "common/common.h"
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#include "osdep/timer.h"
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#include "osdep/windows_utils.h"
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#include "hwdec.h"
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#include "video/hwdec.h"
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#ifndef EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE
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#define EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE 0x3AAB
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#endif
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struct priv {
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struct mp_hwdec_ctx hwctx;
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ID3D11Device *d3d11_device;
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EGLDisplay egl_display;
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EGLStreamKHR egl_stream;
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GLuint gl_textures[3];
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// EGL_KHR_stream
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EGLStreamKHR (EGLAPIENTRY *CreateStreamKHR)(EGLDisplay dpy,
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const EGLint *attrib_list);
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EGLBoolean (EGLAPIENTRY *DestroyStreamKHR)(EGLDisplay dpy,
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EGLStreamKHR stream);
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// EGL_KHR_stream_consumer_gltexture
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EGLBoolean (EGLAPIENTRY *StreamConsumerAcquireKHR)
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(EGLDisplay dpy, EGLStreamKHR stream);
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EGLBoolean (EGLAPIENTRY *StreamConsumerReleaseKHR)
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(EGLDisplay dpy, EGLStreamKHR stream);
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// EGL_NV_stream_consumer_gltexture_yuv
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EGLBoolean (EGLAPIENTRY *StreamConsumerGLTextureExternalAttribsNV)
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(EGLDisplay dpy, EGLStreamKHR stream, EGLAttrib *attrib_list);
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// EGL_ANGLE_stream_producer_d3d_texture_nv12
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EGLBoolean (EGLAPIENTRY *CreateStreamProducerD3DTextureNV12ANGLE)
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(EGLDisplay dpy, EGLStreamKHR stream, const EGLAttrib *attrib_list);
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EGLBoolean (EGLAPIENTRY *StreamPostD3DTextureNV12ANGLE)
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(EGLDisplay dpy, EGLStreamKHR stream, void *texture,
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const EGLAttrib *attrib_list);
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};
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static void destroy_objects(struct gl_hwdec *hw)
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{
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struct priv *p = hw->priv;
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GL *gl = hw->gl;
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if (p->egl_stream)
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p->DestroyStreamKHR(p->egl_display, p->egl_stream);
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p->egl_stream = 0;
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for (int n = 0; n < 3; n++) {
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gl->DeleteTextures(1, &p->gl_textures[n]);
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p->gl_textures[n] = 0;
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}
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}
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static void destroy(struct gl_hwdec *hw)
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{
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struct priv *p = hw->priv;
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destroy_objects(hw);
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hwdec_devices_remove(hw->devs, &p->hwctx);
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if (p->d3d11_device)
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ID3D11Device_Release(p->d3d11_device);
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p->d3d11_device = NULL;
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}
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static int create(struct gl_hwdec *hw)
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{
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if (!angle_load())
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return -1;
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EGLDisplay egl_display = eglGetCurrentDisplay();
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if (!egl_display)
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return -1;
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if (!eglGetCurrentContext())
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return -1;
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const char *exts = eglQueryString(egl_display, EGL_EXTENSIONS);
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if (!exts || !strstr(exts, "EGL_ANGLE_d3d_share_handle_client_buffer") ||
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!strstr(exts, "EGL_ANGLE_stream_producer_d3d_texture_nv12") ||
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!(strstr(hw->gl->extensions, "GL_OES_EGL_image_external_essl3") ||
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hw->gl->es == 200) ||
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!strstr(exts, "EGL_EXT_device_query"))
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return -1;
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HRESULT hr;
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struct priv *p = talloc_zero(hw, struct priv);
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hw->priv = p;
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p->egl_display = egl_display;
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p->CreateStreamKHR = (void *)eglGetProcAddress("eglCreateStreamKHR");
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p->DestroyStreamKHR = (void *)eglGetProcAddress("eglDestroyStreamKHR");
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p->StreamConsumerAcquireKHR =
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(void *)eglGetProcAddress("eglStreamConsumerAcquireKHR");
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p->StreamConsumerReleaseKHR =
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(void *)eglGetProcAddress("eglStreamConsumerReleaseKHR");
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p->StreamConsumerGLTextureExternalAttribsNV =
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(void *)eglGetProcAddress("eglStreamConsumerGLTextureExternalAttribsNV");
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p->CreateStreamProducerD3DTextureNV12ANGLE =
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(void *)eglGetProcAddress("eglCreateStreamProducerD3DTextureNV12ANGLE");
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p->StreamPostD3DTextureNV12ANGLE =
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(void *)eglGetProcAddress("eglStreamPostD3DTextureNV12ANGLE");
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if (!p->CreateStreamKHR || !p->DestroyStreamKHR ||
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!p->StreamConsumerAcquireKHR || !p->StreamConsumerReleaseKHR ||
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!p->StreamConsumerGLTextureExternalAttribsNV ||
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!p->CreateStreamProducerD3DTextureNV12ANGLE ||
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!p->StreamPostD3DTextureNV12ANGLE)
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{
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MP_ERR(hw, "Failed to load some EGLStream functions.\n");
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goto fail;
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}
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static const char *es2_exts[] = {"GL_NV_EGL_stream_consumer_external", 0};
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static const char *es3_exts[] = {"GL_NV_EGL_stream_consumer_external",
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"GL_OES_EGL_image_external_essl3", 0};
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hw->glsl_extensions = hw->gl->es == 200 ? es2_exts : es3_exts;
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PFNEGLQUERYDISPLAYATTRIBEXTPROC p_eglQueryDisplayAttribEXT =
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(void *)eglGetProcAddress("eglQueryDisplayAttribEXT");
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PFNEGLQUERYDEVICEATTRIBEXTPROC p_eglQueryDeviceAttribEXT =
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(void *)eglGetProcAddress("eglQueryDeviceAttribEXT");
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if (!p_eglQueryDisplayAttribEXT || !p_eglQueryDeviceAttribEXT)
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goto fail;
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EGLAttrib device = 0;
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if (!p_eglQueryDisplayAttribEXT(egl_display, EGL_DEVICE_EXT, &device))
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goto fail;
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EGLAttrib d3d_device = 0;
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if (!p_eglQueryDeviceAttribEXT((EGLDeviceEXT)device,
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EGL_D3D11_DEVICE_ANGLE, &d3d_device))
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{
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MP_ERR(hw, "Could not get EGL_D3D11_DEVICE_ANGLE from ANGLE.\n");
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goto fail;
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}
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p->d3d11_device = (ID3D11Device *)d3d_device;
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if (!p->d3d11_device)
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goto fail;
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ID3D11Device_AddRef(p->d3d11_device);
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if (!d3d11_check_decoding(p->d3d11_device)) {
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MP_VERBOSE(hw, "D3D11 video decoding not supported on this system.\n");
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goto fail;
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}
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ID3D10Multithread *multithread;
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hr = ID3D11Device_QueryInterface(p->d3d11_device, &IID_ID3D10Multithread,
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(void **)&multithread);
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if (FAILED(hr)) {
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MP_ERR(hw, "Failed to get Multithread interface: %s\n",
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mp_HRESULT_to_str(hr));
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goto fail;
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}
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ID3D10Multithread_SetMultithreadProtected(multithread, TRUE);
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ID3D10Multithread_Release(multithread);
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p->hwctx = (struct mp_hwdec_ctx){
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.type = HWDEC_D3D11VA,
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.driver_name = hw->driver->name,
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.ctx = p->d3d11_device,
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};
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hwdec_devices_add(hw->devs, &p->hwctx);
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return 0;
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fail:
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destroy(hw);
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return -1;
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}
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static int reinit(struct gl_hwdec *hw, struct mp_image_params *params)
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{
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struct priv *p = hw->priv;
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GL *gl = hw->gl;
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destroy_objects(hw);
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if (params->hw_subfmt != IMGFMT_NV12) {
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MP_FATAL(hw, "Format not supported.\n");
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return -1;
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}
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// Hope that the given texture unit range is not "in use" by anything.
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// The texture units need to be bound during init only, and are free for
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// use again after the initialization here is done.
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int texunits = 0; // [texunits, texunits + num_planes)
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int num_planes = 2;
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int gl_target = GL_TEXTURE_EXTERNAL_OES;
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p->egl_stream = p->CreateStreamKHR(p->egl_display, (EGLint[]){EGL_NONE});
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if (!p->egl_stream)
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goto fail;
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for (int n = 0; n < num_planes; n++) {
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gl->ActiveTexture(GL_TEXTURE0 + texunits + n);
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gl->GenTextures(1, &p->gl_textures[n]);
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gl->BindTexture(gl_target, p->gl_textures[n]);
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gl->TexParameteri(gl_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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gl->TexParameteri(gl_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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gl->TexParameteri(gl_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
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gl->TexParameteri(gl_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
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}
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EGLAttrib attrs[] = {
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EGL_COLOR_BUFFER_TYPE, EGL_YUV_BUFFER_EXT,
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EGL_YUV_NUMBER_OF_PLANES_EXT, num_planes,
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EGL_YUV_PLANE0_TEXTURE_UNIT_NV, texunits + 0,
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EGL_YUV_PLANE1_TEXTURE_UNIT_NV, texunits + 1,
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EGL_NONE,
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};
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if (!p->StreamConsumerGLTextureExternalAttribsNV(p->egl_display, p->egl_stream,
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attrs))
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goto fail;
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if (!p->CreateStreamProducerD3DTextureNV12ANGLE(p->egl_display, p->egl_stream,
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(EGLAttrib[]){EGL_NONE}))
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goto fail;
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params->imgfmt = params->hw_subfmt;
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for (int n = 0; n < num_planes; n++) {
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gl->ActiveTexture(GL_TEXTURE0 + texunits + n);
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gl->BindTexture(gl_target, 0);
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}
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gl->ActiveTexture(GL_TEXTURE0);
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return 0;
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fail:
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MP_ERR(hw, "Failed to create EGLStream\n");
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if (p->egl_stream)
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p->DestroyStreamKHR(p->egl_display, p->egl_stream);
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p->egl_stream = 0;
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gl->ActiveTexture(GL_TEXTURE0);
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return -1;
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}
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static int map_frame(struct gl_hwdec *hw, struct mp_image *hw_image,
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struct gl_hwdec_frame *out_frame)
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{
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struct priv *p = hw->priv;
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if (!p->gl_textures[0])
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return -1;
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ID3D11Texture2D *d3d_tex = (void *)hw_image->planes[1];
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int d3d_subindex = (intptr_t)hw_image->planes[2];
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if (!d3d_tex)
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return -1;
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EGLAttrib attrs[] = {
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EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE, d3d_subindex,
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EGL_NONE,
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};
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if (!p->StreamPostD3DTextureNV12ANGLE(p->egl_display, p->egl_stream,
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(void *)d3d_tex, attrs))
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return -1;
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if (!p->StreamConsumerAcquireKHR(p->egl_display, p->egl_stream))
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return -1;
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D3D11_TEXTURE2D_DESC texdesc;
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ID3D11Texture2D_GetDesc(d3d_tex, &texdesc);
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*out_frame = (struct gl_hwdec_frame){
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.planes = {
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{
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.gl_texture = p->gl_textures[0],
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.gl_target = GL_TEXTURE_EXTERNAL_OES,
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.tex_w = texdesc.Width,
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.tex_h = texdesc.Height,
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},
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{
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.gl_texture = p->gl_textures[1],
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.gl_target = GL_TEXTURE_EXTERNAL_OES,
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.tex_w = texdesc.Width / 2,
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.tex_h = texdesc.Height / 2,
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.swizzle = "rgba", // even in ES2 mode (no LUMINANCE_ALPHA)
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},
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},
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};
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return 0;
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}
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static void unmap(struct gl_hwdec *hw)
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{
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struct priv *p = hw->priv;
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if (p->egl_stream)
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p->StreamConsumerReleaseKHR(p->egl_display, p->egl_stream);
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}
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const struct gl_hwdec_driver gl_hwdec_d3d11egl = {
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.name = "d3d11-egl",
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.api = HWDEC_D3D11VA,
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.imgfmt = IMGFMT_D3D11NV12,
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.create = create,
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.reinit = reinit,
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.map_frame = map_frame,
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.unmap = unmap,
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.destroy = destroy,
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};
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