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mpv/video/out/opengl/hwdec_dxva2egl.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 <EGL/egl.h>
#include <EGL/eglext.h>
#include "common/common.h"
#include "osdep/timer.h"
#include "osdep/windows_utils.h"
#include "hwdec.h"
#include "video/dxva2.h"
#include "video/d3d.h"
#include "video/hwdec.h"
struct priv {
struct mp_d3d_ctx ctx;
HMODULE d3d9_dll;
IDirect3D9Ex *d3d9ex;
IDirect3DDevice9Ex *device9ex;
IDirect3DQuery9 *query9;
IDirect3DTexture9 *texture9;
IDirect3DSurface9 *surface9;
EGLDisplay egl_display;
EGLConfig egl_config;
EGLint alpha;
EGLSurface egl_surface;
GLuint gl_texture;
};
static void destroy_textures(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
gl->DeleteTextures(1, &p->gl_texture);
p->gl_texture = 0;
if (p->egl_display && p->egl_surface) {
eglReleaseTexImage(p->egl_display, p->egl_surface, EGL_BACK_BUFFER);
eglDestroySurface(p->egl_display, p->egl_surface);
p->egl_surface = NULL;
}
if (p->surface9) {
IDirect3DSurface9_Release(p->surface9);
p->surface9 = NULL;
}
if (p->texture9) {
IDirect3DTexture9_Release(p->texture9);
p->texture9 = NULL;
}
}
static void destroy(struct gl_hwdec *hw)
{
struct priv *p = hw->priv;
destroy_textures(hw);
if (p->query9)
IDirect3DQuery9_Release(p->query9);
if (p->device9ex)
IDirect3DDevice9Ex_Release(p->device9ex);
if (p->d3d9ex)
IDirect3D9Ex_Release(p->d3d9ex);
if (p->d3d9_dll)
FreeLibrary(p->d3d9_dll);
}
static int create(struct gl_hwdec *hw)
{
if (hw->hwctx)
return -1;
EGLDisplay egl_display = eglGetCurrentDisplay();
if (!egl_display)
return -1;
const char *exts = eglQueryString(egl_display, EGL_EXTENSIONS);
if (!exts ||
!strstr(exts, "EGL_ANGLE_d3d_share_handle_client_buffer")) {
return -1;
}
HRESULT hr;
struct priv *p = talloc_zero(hw, struct priv);
hw->priv = p;
p->egl_display = egl_display;
p->d3d9_dll = LoadLibraryW(L"d3d9.dll");
if (!p->d3d9_dll) {
MP_FATAL(hw, "Failed to load \"d3d9.dll\": %s\n",
mp_LastError_to_str());
goto fail;
}
HRESULT (WINAPI *Direct3DCreate9Ex)(UINT SDKVersion, IDirect3D9Ex **ppD3D);
Direct3DCreate9Ex = (void *)GetProcAddress(p->d3d9_dll, "Direct3DCreate9Ex");
if (!Direct3DCreate9Ex) {
MP_FATAL(hw, "Direct3D 9Ex not supported\n");
goto fail;
}
hr = Direct3DCreate9Ex(D3D_SDK_VERSION, &p->d3d9ex);
if (FAILED(hr)) {
MP_FATAL(hw, "Couldn't create Direct3D9Ex: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
// We must create our own Direct3D9Ex device. ANGLE can give us the device
// it's using, but that's probably a ID3D11Device.
// (copied from chromium dxva_video_decode_accelerator_win.cc)
D3DPRESENT_PARAMETERS present_params = {
.BackBufferWidth = 1,
.BackBufferHeight = 1,
.BackBufferFormat = D3DFMT_UNKNOWN,
.BackBufferCount = 1,
.SwapEffect = D3DSWAPEFFECT_DISCARD,
.hDeviceWindow = NULL,
.Windowed = TRUE,
.Flags = D3DPRESENTFLAG_VIDEO,
.FullScreen_RefreshRateInHz = 0,
.PresentationInterval = 0,
};
hr = IDirect3D9Ex_CreateDeviceEx(p->d3d9ex,
D3DADAPTER_DEFAULT,
D3DDEVTYPE_HAL,
NULL,
D3DCREATE_FPU_PRESERVE |
D3DCREATE_HARDWARE_VERTEXPROCESSING |
D3DCREATE_DISABLE_PSGP_THREADING |
D3DCREATE_MULTITHREADED,
&present_params,
NULL,
&p->device9ex);
if (FAILED(hr)) {
MP_FATAL(hw, "Failed to create Direct3D9Ex device: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
hr = IDirect3DDevice9_CreateQuery(p->device9ex, D3DQUERYTYPE_EVENT,
&p->query9);
if (FAILED(hr)) {
MP_FATAL(hw, "Failed to create Direct3D query interface: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
// Test the query API
hr = IDirect3DQuery9_Issue(p->query9, D3DISSUE_END);
if (FAILED(hr)) {
MP_FATAL(hw, "Failed to issue Direct3D END test query: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
EGLint attrs[] = {
EGL_BUFFER_SIZE, 32,
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_SURFACE_TYPE, EGL_PBUFFER_BIT,
EGL_ALPHA_SIZE, 0,
EGL_NONE
};
EGLint count;
if (!eglChooseConfig(p->egl_display, attrs, &p->egl_config, 1, &count) ||
!count) {
MP_ERR(hw, "Failed to get EGL surface configuration\n");
goto fail;
}
if (!eglGetConfigAttrib(p->egl_display, p->egl_config,
EGL_BIND_TO_TEXTURE_RGBA, &p->alpha)) {
MP_FATAL(hw, "Failed to query EGL surface alpha\n");
goto fail;
}
hw->converted_imgfmt = IMGFMT_RGB0;
p->ctx.d3d9_device = (IDirect3DDevice9 *)p->device9ex;
p->ctx.hwctx.type = HWDEC_DXVA2;
p->ctx.hwctx.d3d_ctx = &p->ctx;
hw->hwctx = &p->ctx.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;
HRESULT hr;
destroy_textures(hw);
assert(params->imgfmt == hw->driver->imgfmt);
HANDLE share_handle = NULL;
hr = IDirect3DDevice9Ex_CreateTexture(p->device9ex,
params->w, params->h,
1, D3DUSAGE_RENDERTARGET,
p->alpha ? D3DFMT_A8R8G8B8 : D3DFMT_X8R8G8B8,
D3DPOOL_DEFAULT,
&p->texture9,
&share_handle);
if (FAILED(hr)) {
MP_ERR(hw, "Failed to create Direct3D9 texture: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
hr = IDirect3DTexture9_GetSurfaceLevel(p->texture9, 0, &p->surface9);
if (FAILED(hr)) {
MP_ERR(hw, "Failed to get Direct3D9 surface from texture: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
EGLint attrib_list[] = {
EGL_WIDTH, params->w,
EGL_HEIGHT, params->h,
EGL_TEXTURE_FORMAT, p->alpha ? EGL_TEXTURE_RGBA : EGL_TEXTURE_RGB,
EGL_TEXTURE_TARGET, EGL_TEXTURE_2D,
EGL_NONE
};
p->egl_surface = eglCreatePbufferFromClientBuffer(
p->egl_display, EGL_D3D_TEXTURE_2D_SHARE_HANDLE_ANGLE,
share_handle, p->egl_config, attrib_list);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_ERR(hw, "Failed to create EGL surface\n");
goto fail;
}
gl->GenTextures(1, &p->gl_texture);
gl->BindTexture(GL_TEXTURE_2D, p->gl_texture);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
gl->TexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
gl->BindTexture(GL_TEXTURE_2D, 0);
return 0;
fail:
destroy_textures(hw);
return -1;
}
static int map_image(struct gl_hwdec *hw, struct mp_image *hw_image,
GLuint *out_textures)
{
struct priv *p = hw->priv;
GL *gl = hw->gl;
if (!p->surface9 || !p->egl_surface || !p->gl_texture)
return -1;
HRESULT hr;
RECT rc = {0, 0, hw_image->w, hw_image->h};
IDirect3DSurface9* hw_surface = d3d9_surface_in_mp_image(hw_image);
hr = IDirect3DDevice9Ex_StretchRect(p->device9ex,
hw_surface, &rc,
p->surface9, &rc,
D3DTEXF_NONE);
if (FAILED(hr)) {
MP_ERR(hw, "Direct3D RGB conversion failed: %s\n",
mp_HRESULT_to_str(hr));
return -1;
}
hr = IDirect3DQuery9_Issue(p->query9, D3DISSUE_END);
if (FAILED(hr)) {
MP_ERR(hw, "Failed to issue Direct3D END query\n");
return -1;
}
// There doesn't appear to be an efficient way to do a blocking flush
// of the above StretchRect. Timeout of 8ms is required to reliably
// render 4k on Intel Haswell, Ivybridge and Cherry Trail Atom.
const int max_retries = 8;
const int64_t wait_us = 1000;
int retries = 0;
while (true) {
hr = IDirect3DQuery9_GetData(p->query9, NULL, 0, D3DGETDATA_FLUSH);
if (FAILED(hr)) {
MP_ERR(hw, "Failed to query Direct3D flush state\n");
return -1;
} else if (hr == S_FALSE) {
if (++retries > max_retries) {
MP_VERBOSE(hw, "Failed to flush frame after %lld ms\n",
(long long)(wait_us * max_retries) / 1000);
break;
}
mp_sleep_us(wait_us);
} else {
break;
}
}
gl->BindTexture(GL_TEXTURE_2D, p->gl_texture);
eglBindTexImage(p->egl_display, p->egl_surface, EGL_BACK_BUFFER);
gl->BindTexture(GL_TEXTURE_2D, 0);
out_textures[0] = p->gl_texture;
return 0;
}
const struct gl_hwdec_driver gl_hwdec_dxva2egl = {
.name = "dxva2-egl",
.api = HWDEC_DXVA2,
.imgfmt = IMGFMT_DXVA2,
.create = create,
.reinit = reinit,
.map_image = map_image,
.destroy = destroy,
};
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