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mpv/video/out/opengl/hwdec_dxva2egl.c
Philip Langdale e50db42927 vo: hwdec: do hwdec interop lookup by image format 
It turns out that it's generally more useful to look up hwdecs by image
format, rather than device type. In the situations where we need to
find one, we generally know the image format we're dealing with. Doing
this avoids us having to create mappings from image format to device
type.

The most significant part of this change is filling in the image format
for the various hw interops. There is a hw_imgfmt field today today, but
only a couple of the interops fill it in, and that seems to be because
we've never actually used this piece of metadata before. Well, now we
have a good use for it.
2022-09-21 09:39:34 -07:00

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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 <d3d9.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 "video/out/gpu/hwdec.h"
#include "ra_gl.h"
#include "video/hwdec.h"
#include "video/d3d.h"
struct priv_owner {
struct mp_hwdec_ctx hwctx;
IDirect3D9Ex *d3d9ex;
IDirect3DDevice9Ex *device9ex;
EGLDisplay egl_display;
EGLConfig egl_config;
EGLint alpha;
};
struct priv {
IDirect3DDevice9Ex *device9ex; // (no own reference)
IDirect3DQuery9 *query9;
IDirect3DTexture9 *texture9;
IDirect3DSurface9 *surface9;
EGLDisplay egl_display;
EGLSurface egl_surface;
GLuint gl_texture;
};
static void uninit(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
hwdec_devices_remove(hw->devs, &p->hwctx);
av_buffer_unref(&p->hwctx.av_device_ref);
if (p->device9ex)
IDirect3DDevice9Ex_Release(p->device9ex);
if (p->d3d9ex)
IDirect3D9Ex_Release(p->d3d9ex);
}
static int init(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
HRESULT hr;
if (!ra_is_gl(hw->ra))
return -1;
if (!angle_load())
return -1;
d3d_load_dlls();
EGLDisplay egl_display = eglGetCurrentDisplay();
if (!egl_display)
return -1;
if (!eglGetCurrentContext())
return -1;
const char *exts = eglQueryString(egl_display, EGL_EXTENSIONS);
if (!gl_check_extension(exts, "EGL_ANGLE_d3d_share_handle_client_buffer")) {
return -1;
}
p->egl_display = egl_display;
if (!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(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;
}
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;
}
struct mp_image_params dummy_params = {
.imgfmt = IMGFMT_DXVA2,
.w = 256,
.h = 256,
};
struct ra_hwdec_mapper *mapper = ra_hwdec_mapper_create(hw, &dummy_params);
if (!mapper)
goto fail;
ra_hwdec_mapper_free(&mapper);
p->hwctx = (struct mp_hwdec_ctx){
.driver_name = hw->driver->name,
.av_device_ref = d3d9_wrap_device_ref((IDirect3DDevice9 *)p->device9ex),
.hw_imgfmt = IMGFMT_DXVA2,
};
hwdec_devices_add(hw->devs, &p->hwctx);
return 0;
fail:
return -1;
}
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
ra_tex_free(mapper->ra, &mapper->tex[0]);
gl->DeleteTextures(1, &p->gl_texture);
if (p->egl_display && p->egl_surface) {
eglReleaseTexImage(p->egl_display, p->egl_surface, EGL_BACK_BUFFER);
eglDestroySurface(p->egl_display, p->egl_surface);
}
if (p->surface9)
IDirect3DSurface9_Release(p->surface9);
if (p->texture9)
IDirect3DTexture9_Release(p->texture9);
if (p->query9)
IDirect3DQuery9_Release(p->query9);
}
static int mapper_init(struct ra_hwdec_mapper *mapper)
{
struct priv_owner *p_owner = mapper->owner->priv;
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
HRESULT hr;
p->device9ex = p_owner->device9ex;
p->egl_display = p_owner->egl_display;
hr = IDirect3DDevice9_CreateQuery(p->device9ex, D3DQUERYTYPE_EVENT,
&p->query9);
if (FAILED(hr)) {
MP_FATAL(mapper, "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(mapper, "Failed to issue Direct3D END test query: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
HANDLE share_handle = NULL;
hr = IDirect3DDevice9Ex_CreateTexture(p->device9ex,
mapper->src_params.w,
mapper->src_params.h,
1, D3DUSAGE_RENDERTARGET,
p_owner->alpha ?
D3DFMT_A8R8G8B8 : D3DFMT_X8R8G8B8,
D3DPOOL_DEFAULT,
&p->texture9,
&share_handle);
if (FAILED(hr)) {
MP_ERR(mapper, "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(mapper, "Failed to get Direct3D9 surface from texture: %s\n",
mp_HRESULT_to_str(hr));
goto fail;
}
EGLint attrib_list[] = {
EGL_WIDTH, mapper->src_params.w,
EGL_HEIGHT, mapper->src_params.h,
EGL_TEXTURE_FORMAT, p_owner->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_owner->egl_config, attrib_list);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_ERR(mapper, "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);
struct ra_tex_params params = {
.dimensions = 2,
.w = mapper->src_params.w,
.h = mapper->src_params.h,
.d = 1,
.format = ra_find_unorm_format(mapper->ra, 1, p_owner->alpha ? 4 : 3),
.render_src = true,
.src_linear = true,
};
if (!params.format)
goto fail;
mapper->tex[0] = ra_create_wrapped_tex(mapper->ra, &params, p->gl_texture);
if (!mapper->tex[0])
goto fail;
mapper->dst_params = mapper->src_params;
mapper->dst_params.imgfmt = IMGFMT_RGB0;
mapper->dst_params.hw_subfmt = 0;
return 0;
fail:
return -1;
}
static int mapper_map(struct ra_hwdec_mapper *mapper)
{
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
HRESULT hr;
RECT rc = {0, 0, mapper->src->w, mapper->src->h};
IDirect3DSurface9* hw_surface = (IDirect3DSurface9 *)mapper->src->planes[3];
hr = IDirect3DDevice9Ex_StretchRect(p->device9ex,
hw_surface, &rc,
p->surface9, &rc,
D3DTEXF_NONE);
if (FAILED(hr)) {
MP_ERR(mapper, "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(mapper, "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(mapper, "Failed to query Direct3D flush state\n");
return -1;
} else if (hr == S_FALSE) {
if (++retries > max_retries) {
MP_VERBOSE(mapper, "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);
return 0;
}
const struct ra_hwdec_driver ra_hwdec_dxva2egl = {
.name = "dxva2-egl",
.priv_size = sizeof(struct priv_owner),
.imgfmts = {IMGFMT_DXVA2, 0},
.init = init,
.uninit = uninit,
.mapper = &(const struct ra_hwdec_mapper_driver){
.priv_size = sizeof(struct priv),
.init = mapper_init,
.uninit = mapper_uninit,
.map = mapper_map,
},
};
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