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mpv/video/out/opengl/hwdec_dxva2gldx.c
wm4 52dd38a48a client API: add a new way to pass X11 Display etc. to render API
Hardware decoding things often need access to additional handles from
the windowing system, such as the X11 or Wayland display when using
vaapi. The opengl-cb had nothing dedicated for this, and used the weird
GL_MP_MPGetNativeDisplay GL extension (which was mpv specific and not
officially registered with OpenGL).

This was awkward, and a pain due to having to emulate GL context
behavior (like needing a TLS variable to store context for the pseudo GL
extension function). In addition (and not inherently due to this), we
could pass only one resource from mpv builtin context backends to
hwdecs. It was also all GL specific.

Replace this with a newer mechanism. It works for all RA backends, not
just GL. the API user can explicitly pass the objects at init time via
mpv_render_context_create(). Multiple resources are naturally possible.

The API uses MPV_RENDER_PARAM_* defines, but internally we use strings.
This is done for 2 reasons: 1. trying to leave libmpv and internal
mechanisms decoupled, 2. not having to add public API for some of the
internal resource types (especially D3D/GL interop stuff).

To remain sane, drop support for obscure half-working opengl-cb things,
like the DRM interop (was missing necessary things), the RPI window
thing (nobody used it), and obscure D3D interop things (not needed with
ANGLE, others were undocumented). In order not to break ABI and the C
API, we don't remove the associated structs from opengl_cb.h.

The parts which are still needed (in particular DRM interop) needs to be
ported to the render API.
2018-03-26 19:47:08 +02:00

240 lines
7.1 KiB
C

/*
* 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 <d3d9.h>
#include <assert.h>
#include "common/common.h"
#include "osdep/windows_utils.h"
#include "video/out/gpu/hwdec.h"
#include "ra_gl.h"
#include "video/hwdec.h"
#include "video/d3d.h"
// for WGL_ACCESS_READ_ONLY_NV
#include <GL/wglext.h>
#define SHARED_SURFACE_D3DFMT D3DFMT_X8R8G8B8
struct priv_owner {
struct mp_hwdec_ctx hwctx;
IDirect3DDevice9Ex *device;
HANDLE device_h;
};
struct priv {
IDirect3DDevice9Ex *device;
HANDLE device_h;
IDirect3DSurface9 *rtarget;
HANDLE rtarget_h;
GLuint 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->device)
IDirect3DDevice9Ex_Release(p->device);
}
static int init(struct ra_hwdec *hw)
{
struct priv_owner *p = hw->priv;
if (!ra_is_gl(hw->ra))
return -1;
GL *gl = ra_gl_get(hw->ra);
if (!(gl->mpgl_caps & MPGL_CAP_DXINTEROP))
return -1;
// AMD drivers won't open multiple dxinterop HANDLES on the same D3D device,
// so we request the one already in use by context_dxinterop
p->device_h = ra_get_native_resource(hw->ra, "dxinterop_device_HANDLE");
if (!p->device_h)
return -1;
// But we also still need the actual D3D device
p->device = ra_get_native_resource(hw->ra, "IDirect3DDevice9Ex");
if (!p->device)
return -1;
IDirect3DDevice9Ex_AddRef(p->device);
p->hwctx = (struct mp_hwdec_ctx){
.driver_name = hw->driver->name,
.av_device_ref = d3d9_wrap_device_ref((IDirect3DDevice9 *)p->device),
};
hwdec_devices_add(hw->devs, &p->hwctx);
return 0;
}
static void mapper_uninit(struct ra_hwdec_mapper *mapper)
{
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
if (p->rtarget_h && p->device_h) {
if (!gl->DXUnlockObjectsNV(p->device_h, 1, &p->rtarget_h)) {
MP_ERR(mapper, "Failed unlocking texture for access by OpenGL: %s\n",
mp_LastError_to_str());
}
}
if (p->rtarget_h) {
if (!gl->DXUnregisterObjectNV(p->device_h, p->rtarget_h)) {
MP_ERR(mapper, "Failed to unregister Direct3D surface with OpenGL: %s\n",
mp_LastError_to_str());
} else {
p->rtarget_h = 0;
}
}
gl->DeleteTextures(1, &p->texture);
p->texture = 0;
if (p->rtarget) {
IDirect3DSurface9_Release(p->rtarget);
p->rtarget = NULL;
}
ra_tex_free(mapper->ra, &mapper->tex[0]);
}
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->device = p_owner->device;
p->device_h = p_owner->device_h;
HANDLE share_handle = NULL;
hr = IDirect3DDevice9Ex_CreateRenderTarget(
p->device,
mapper->src_params.w, mapper->src_params.h,
SHARED_SURFACE_D3DFMT, D3DMULTISAMPLE_NONE, 0, FALSE,
&p->rtarget, &share_handle);
if (FAILED(hr)) {
MP_ERR(mapper, "Failed creating offscreen Direct3D surface: %s\n",
mp_HRESULT_to_str(hr));
return -1;
}
if (share_handle &&
!gl->DXSetResourceShareHandleNV(p->rtarget, share_handle)) {
MP_ERR(mapper, "Failed setting Direct3D/OpenGL share handle for surface: %s\n",
mp_LastError_to_str());
return -1;
}
gl->GenTextures(1, &p->texture);
gl->BindTexture(GL_TEXTURE_2D, p->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);
p->rtarget_h = gl->DXRegisterObjectNV(p->device_h, p->rtarget, p->texture,
GL_TEXTURE_2D,
WGL_ACCESS_READ_ONLY_NV);
if (!p->rtarget_h) {
MP_ERR(mapper, "Failed to register Direct3D surface with OpenGL: %s\n",
mp_LastError_to_str());
return -1;
}
if (!gl->DXLockObjectsNV(p->device_h, 1, &p->rtarget_h)) {
MP_ERR(mapper, "Failed locking texture for access by OpenGL %s\n",
mp_LastError_to_str());
return -1;
}
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, 4),
.render_src = true,
.src_linear = true,
};
if (!params.format)
return -1;
mapper->tex[0] = ra_create_wrapped_tex(mapper->ra, &params, p->texture);
if (!mapper->tex[0])
return -1;
mapper->dst_params = mapper->src_params;
mapper->dst_params.imgfmt = IMGFMT_RGB0;
mapper->dst_params.hw_subfmt = 0;
return 0;
}
static int mapper_map(struct ra_hwdec_mapper *mapper)
{
struct priv *p = mapper->priv;
GL *gl = ra_gl_get(mapper->ra);
HRESULT hr;
if (!gl->DXUnlockObjectsNV(p->device_h, 1, &p->rtarget_h)) {
MP_ERR(mapper, "Failed unlocking texture for access by OpenGL: %s\n",
mp_LastError_to_str());
return -1;
}
IDirect3DSurface9* hw_surface = (IDirect3DSurface9 *)mapper->src->planes[3];
RECT rc = {0, 0, mapper->src->w, mapper->src->h};
hr = IDirect3DDevice9Ex_StretchRect(p->device,
hw_surface, &rc,
p->rtarget, &rc,
D3DTEXF_NONE);
if (FAILED(hr)) {
MP_ERR(mapper, "Direct3D RGB conversion failed: %s", mp_HRESULT_to_str(hr));
return -1;
}
if (!gl->DXLockObjectsNV(p->device_h, 1, &p->rtarget_h)) {
MP_ERR(mapper, "Failed locking texture for access by OpenGL: %s\n",
mp_LastError_to_str());
return -1;
}
return 0;
}
const struct ra_hwdec_driver ra_hwdec_dxva2gldx = {
.name = "dxva2-dxinterop",
.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,
},
};