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mpv/video/out/opengl/hwdec_d3d11egl.c

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/*
* This file is part of mpv.
*
* mpv is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* mpv is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with mpv. If not, see <http://www.gnu.org/licenses/>.
*/
#include <assert.h>
#include <windows.h>
#include <d3d11.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include "angle_dynamic.h"
#include "common/common.h"
#include "osdep/timer.h"
#include "osdep/windows_utils.h"
#include "hwdec.h"
#include "video/hwdec.h"
#include "video/decode/d3d.h"
#ifndef EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE
#define EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE 0x33AB
#endif
struct priv {
struct mp_hwdec_ctx hwctx;
ID3D11Device *d3d11_device;
EGLDisplay egl_display;
EGLStreamKHR egl_stream;
GLuint gl_textures[3];
// EGL_KHR_stream
EGLStreamKHR (EGLAPIENTRY *CreateStreamKHR)(EGLDisplay dpy,
const EGLint *attrib_list);
EGLBoolean (EGLAPIENTRY *DestroyStreamKHR)(EGLDisplay dpy,
EGLStreamKHR stream);
// EGL_KHR_stream_consumer_gltexture
EGLBoolean (EGLAPIENTRY *StreamConsumerAcquireKHR)
(EGLDisplay dpy, EGLStreamKHR stream);
EGLBoolean (EGLAPIENTRY *StreamConsumerReleaseKHR)
(EGLDisplay dpy, EGLStreamKHR stream);
// EGL_NV_stream_consumer_gltexture_yuv
EGLBoolean (EGLAPIENTRY *StreamConsumerGLTextureExternalAttribsNV)
(EGLDisplay dpy, EGLStreamKHR stream, EGLAttrib *attrib_list);
// EGL_ANGLE_stream_producer_d3d_texture_nv12
EGLBoolean (EGLAPIENTRY *CreateStreamProducerD3DTextureNV12ANGLE)
(EGLDisplay dpy, EGLStreamKHR stream, const EGLAttrib *attrib_list);
EGLBoolean (EGLAPIENTRY *StreamPostD3DTextureNV12ANGLE)
(EGLDisplay dpy, EGLStreamKHR stream, void *texture,
const EGLAttrib *attrib_list);
};
static void destroy_objects(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
if (p->egl_stream)
p->DestroyStreamKHR(p->egl_display, p->egl_stream);
p->egl_stream = 0;
for (int n = 0; n < 3; n++) {
gl->DeleteTextures(1, &p->gl_textures[n]);
p->gl_textures[n] = 0;
}
}
static void destroy(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
destroy_objects(hw);
hwdec_devices_remove(hw->devs, &p->hwctx);
if (p->d3d11_device)
ID3D11Device_Release(p->d3d11_device);
p->d3d11_device = NULL;
}
static int create(struct gl_hwdec *hw)
{
if (!angle_load())
return -1;
EGLDisplay egl_display = eglGetCurrentDisplay();
if (!egl_display)
return -1;
if (!eglGetCurrentContext())
return -1;
const char *exts = eglQueryString(egl_display, EGL_EXTENSIONS);
if (!exts || !strstr(exts, "EGL_ANGLE_d3d_share_handle_client_buffer") ||
!strstr(exts, "EGL_ANGLE_stream_producer_d3d_texture_nv12") ||
!(strstr(hw->gl->extensions, "GL_OES_EGL_image_external_essl3") ||
hw->gl->es == 200) ||
!strstr(exts, "EGL_EXT_device_query") ||
!(hw->gl->mpgl_caps & MPGL_CAP_TEX_RG))
return -1;
HRESULT hr;
struct priv *p = talloc_zero(hw, struct priv);
hw->priv = p;
p->egl_display = egl_display;
p->CreateStreamKHR = (void *)eglGetProcAddress("eglCreateStreamKHR");
p->DestroyStreamKHR = (void *)eglGetProcAddress("eglDestroyStreamKHR");
p->StreamConsumerAcquireKHR =
(void *)eglGetProcAddress("eglStreamConsumerAcquireKHR");
p->StreamConsumerReleaseKHR =
(void *)eglGetProcAddress("eglStreamConsumerReleaseKHR");
p->StreamConsumerGLTextureExternalAttribsNV =
(void *)eglGetProcAddress("eglStreamConsumerGLTextureExternalAttribsNV");
p->CreateStreamProducerD3DTextureNV12ANGLE =
(void *)eglGetProcAddress("eglCreateStreamProducerD3DTextureNV12ANGLE");
p->StreamPostD3DTextureNV12ANGLE =
(void *)eglGetProcAddress("eglStreamPostD3DTextureNV12ANGLE");
if (!p->CreateStreamKHR || !p->DestroyStreamKHR ||
!p->StreamConsumerAcquireKHR || !p->StreamConsumerReleaseKHR ||
!p->StreamConsumerGLTextureExternalAttribsNV ||
!p->CreateStreamProducerD3DTextureNV12ANGLE ||
!p->StreamPostD3DTextureNV12ANGLE)
{
MP_ERR(hw, "Failed to load some EGLStream functions.\n");
goto fail;
}
static const char *es2_exts[] = {"GL_NV_EGL_stream_consumer_external", 0};
static const char *es3_exts[] = {"GL_NV_EGL_stream_consumer_external",
"GL_OES_EGL_image_external_essl3", 0};
hw->glsl_extensions = hw->gl->es == 200 ? es2_exts : es3_exts;
PFNEGLQUERYDISPLAYATTRIBEXTPROC p_eglQueryDisplayAttribEXT =
(void *)eglGetProcAddress("eglQueryDisplayAttribEXT");
PFNEGLQUERYDEVICEATTRIBEXTPROC p_eglQueryDeviceAttribEXT =
(void *)eglGetProcAddress("eglQueryDeviceAttribEXT");
if (!p_eglQueryDisplayAttribEXT || !p_eglQueryDeviceAttribEXT)
goto fail;
EGLAttrib device = 0;
if (!p_eglQueryDisplayAttribEXT(egl_display, EGL_DEVICE_EXT, &device))
goto fail;
EGLAttrib d3d_device = 0;
if (!p_eglQueryDeviceAttribEXT((EGLDeviceEXT)device,
EGL_D3D11_DEVICE_ANGLE, &d3d_device))
{
MP_ERR(hw, "Could not get EGL_D3D11_DEVICE_ANGLE from ANGLE.\n");
goto fail;
}
p->d3d11_device = (ID3D11Device *)d3d_device;
if (!p->d3d11_device)
goto fail;
ID3D11Device_AddRef(p->d3d11_device);
if (!d3d11_check_decoding(p->d3d11_device)) {
MP_VERBOSE(hw, "D3D11 video decoding not supported on this system.\n");
goto fail;
}
ID3D10Multithread *multithread;
hr = ID3D11Device_QueryInterface(p->d3d11_device, &IID_ID3D10Multithread,
(void **)&multithread);
if (FAILED(hr)) {
MP_ERR(hw, "Failed to get Multithread interface: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
ID3D10Multithread_SetMultithreadProtected(multithread, TRUE);
ID3D10Multithread_Release(multithread);
p->hwctx = (struct mp_hwdec_ctx){
.type = HWDEC_D3D11VA,
.driver_name = hw->driver->name,
.ctx = p->d3d11_device,
.download_image = d3d11_download_image,
};
hwdec_devices_add(hw->devs, &p->hwctx);
return 0;
fail:
destroy(hw);
return -1;
}
static int reinit(struct gl_hwdec *hw, struct mp_image_params *params)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
destroy_objects(hw);
if (params->hw_subfmt != IMGFMT_NV12) {
MP_FATAL(hw, "Format not supported.\n");
return -1;
}
// Hope that the given texture unit range is not "in use" by anything.
// The texture units need to be bound during init only, and are free for
// use again after the initialization here is done.
int texunits = 0; // [texunits, texunits + num_planes)
int num_planes = 2;
int gl_target = GL_TEXTURE_EXTERNAL_OES;
p->egl_stream = p->CreateStreamKHR(p->egl_display, (EGLint[]){EGL_NONE});
if (!p->egl_stream)
goto fail;
for (int n = 0; n < num_planes; n++) {
gl->ActiveTexture(GL_TEXTURE0 + texunits + n);
gl->GenTextures(1, &p->gl_textures[n]);
gl->BindTexture(gl_target, p->gl_textures[n]);
gl->TexParameteri(gl_target, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri(gl_target, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri(gl_target, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(gl_target, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
}
EGLAttrib attrs[] = {
EGL_COLOR_BUFFER_TYPE, EGL_YUV_BUFFER_EXT,
EGL_YUV_NUMBER_OF_PLANES_EXT, num_planes,
EGL_YUV_PLANE0_TEXTURE_UNIT_NV, texunits + 0,
EGL_YUV_PLANE1_TEXTURE_UNIT_NV, texunits + 1,
EGL_NONE,
};
if (!p->StreamConsumerGLTextureExternalAttribsNV(p->egl_display, p->egl_stream,
attrs))
goto fail;
if (!p->CreateStreamProducerD3DTextureNV12ANGLE(p->egl_display, p->egl_stream,
(EGLAttrib[]){EGL_NONE}))
goto fail;
params->imgfmt = params->hw_subfmt;
params->hw_subfmt = 0;
for (int n = 0; n < num_planes; n++) {
gl->ActiveTexture(GL_TEXTURE0 + texunits + n);
gl->BindTexture(gl_target, 0);
}
gl->ActiveTexture(GL_TEXTURE0);
return 0;
fail:
MP_ERR(hw, "Failed to create EGLStream\n");
if (p->egl_stream)
p->DestroyStreamKHR(p->egl_display, p->egl_stream);
p->egl_stream = 0;
gl->ActiveTexture(GL_TEXTURE0);
return -1;
}
static int map_frame(struct gl_hwdec *hw, struct mp_image *hw_image,
struct gl_hwdec_frame *out_frame)
{
struct priv *p = hw->priv;
if (!p->gl_textures[0])
return -1;
ID3D11Texture2D *d3d_tex = (void *)hw_image->planes[0];
int d3d_subindex = (intptr_t)hw_image->planes[1];
if (!d3d_tex)
return -1;
EGLAttrib attrs[] = {
EGL_D3D_TEXTURE_SUBRESOURCE_ID_ANGLE, d3d_subindex,
EGL_NONE,
};
if (!p->StreamPostD3DTextureNV12ANGLE(p->egl_display, p->egl_stream,
(void *)d3d_tex, attrs))
{
// ANGLE changed the enum ID of this without warning at one point.
attrs[0] = attrs[0] == 0x33AB ? 0x3AAB : 0x33AB;
if (!p->StreamPostD3DTextureNV12ANGLE(p->egl_display, p->egl_stream,
(void *)d3d_tex, attrs))
return -1;
}
if (!p->StreamConsumerAcquireKHR(p->egl_display, p->egl_stream))
return -1;
D3D11_TEXTURE2D_DESC texdesc;
ID3D11Texture2D_GetDesc(d3d_tex, &texdesc);
*out_frame = (struct gl_hwdec_frame){
.planes = {
{
.gl_texture = p->gl_textures[0],
.gl_target = GL_TEXTURE_EXTERNAL_OES,
.tex_w = texdesc.Width,
.tex_h = texdesc.Height,
},
{
.gl_texture = p->gl_textures[1],
.gl_target = GL_TEXTURE_EXTERNAL_OES,
.tex_w = texdesc.Width / 2,
.tex_h = texdesc.Height / 2,
},
},
};
return 0;
}
static void unmap(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
if (p->egl_stream)
p->StreamConsumerReleaseKHR(p->egl_display, p->egl_stream);
}
const struct gl_hwdec_driver gl_hwdec_d3d11egl = {
.name = "d3d11-egl",
.api = HWDEC_D3D11VA,
.imgfmt = IMGFMT_D3D11NV12,
.create = create,
.reinit = reinit,
.map_frame = map_frame,
.unmap = unmap,
.destroy = destroy,
};
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