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mpv/video/out/opengl/context_angle.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 <windows.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <d3d11.h>
#include <dxgi.h>
#include "angle_dynamic.h"
#include "common/common.h"
#include "video/out/w32_common.h"
#include "context.h"
#ifndef EGL_OPTIMAL_SURFACE_ORIENTATION_ANGLE
#define EGL_OPTIMAL_SURFACE_ORIENTATION_ANGLE 0x33A7
#define EGL_SURFACE_ORIENTATION_ANGLE 0x33A8
#define EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE 0x0002
#endif
// Windows 8 enum value, not present in mingw-w64 headers
#define DXGI_ADAPTER_FLAG_SOFTWARE (2)
struct priv {
EGLDisplay egl_display;
EGLContext egl_context;
EGLSurface egl_surface;
bool use_es2;
bool sw_adapter_msg_shown;
PFNEGLPOSTSUBBUFFERNVPROC eglPostSubBufferNV;
};
static void angle_uninit(MPGLContext *ctx)
{
struct priv *p = ctx->priv;
if (p->egl_context) {
eglMakeCurrent(p->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
EGL_NO_CONTEXT);
eglDestroyContext(p->egl_display, p->egl_context);
}
p->egl_context = EGL_NO_CONTEXT;
if (p->egl_display)
eglTerminate(p->egl_display);
vo_w32_uninit(ctx->vo);
}
static EGLConfig select_fb_config_egl(struct MPGLContext *ctx)
{
struct priv *p = ctx->priv;
EGLint attributes[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 0,
EGL_NONE
};
EGLint config_count;
EGLConfig config;
eglChooseConfig(p->egl_display, attributes, &config, 1, &config_count);
if (!config_count) {
MP_FATAL(ctx->vo, "Could find EGL configuration!\n");
return NULL;
}
return config;
}
static bool create_context_egl(MPGLContext *ctx, EGLConfig config, int version)
{
struct priv *p = ctx->priv;
EGLint context_attributes[] = {
EGL_CONTEXT_CLIENT_VERSION, version,
EGL_NONE
};
p->egl_context = eglCreateContext(p->egl_display, config,
EGL_NO_CONTEXT, context_attributes);
if (p->egl_context == EGL_NO_CONTEXT) {
MP_VERBOSE(ctx->vo, "Could not create EGL GLES %d context!\n", version);
return false;
}
eglMakeCurrent(p->egl_display, p->egl_surface, p->egl_surface,
p->egl_context);
return true;
}
static void show_sw_adapter_msg(struct MPGLContext *ctx)
{
struct priv *p = ctx->priv;
if (p->sw_adapter_msg_shown)
return;
MP_WARN(ctx->vo, "Using a software adapter\n");
p->sw_adapter_msg_shown = true;
}
static void d3d_init(struct MPGLContext *ctx)
{
HRESULT hr;
struct priv *p = ctx->priv;
struct vo *vo = ctx->vo;
IDXGIDevice *dxgi_dev = NULL;
IDXGIAdapter *dxgi_adapter = NULL;
IDXGIAdapter1 *dxgi_adapter1 = NULL;
IDXGIFactory *dxgi_factory = NULL;
PFNEGLQUERYDISPLAYATTRIBEXTPROC eglQueryDisplayAttribEXT =
(PFNEGLQUERYDISPLAYATTRIBEXTPROC)eglGetProcAddress("eglQueryDisplayAttribEXT");
PFNEGLQUERYDEVICEATTRIBEXTPROC eglQueryDeviceAttribEXT =
(PFNEGLQUERYDEVICEATTRIBEXTPROC)eglGetProcAddress("eglQueryDeviceAttribEXT");
if (!eglQueryDisplayAttribEXT || !eglQueryDeviceAttribEXT) {
MP_VERBOSE(vo, "Missing EGL_EXT_device_query\n");
goto done;
}
EGLAttrib dev_attr;
if (!eglQueryDisplayAttribEXT(p->egl_display, EGL_DEVICE_EXT, &dev_attr)) {
MP_VERBOSE(vo, "Missing EGL_EXT_device_query\n");
goto done;
}
// If ANGLE is in D3D11 mode, get the underlying ID3D11Device
EGLDeviceEXT dev = (EGLDeviceEXT)dev_attr;
EGLAttrib d3d11_dev_attr;
if (eglQueryDeviceAttribEXT(dev, EGL_D3D11_DEVICE_ANGLE, &d3d11_dev_attr)) {
ID3D11Device *d3d11_dev = (ID3D11Device*)d3d11_dev_attr;
hr = ID3D11Device_QueryInterface(d3d11_dev, &IID_IDXGIDevice,
(void**)&dxgi_dev);
if (FAILED(hr)) {
MP_ERR(vo, "Device is not a IDXGIDevice\n");
goto done;
}
hr = IDXGIDevice_GetAdapter(dxgi_dev, &dxgi_adapter);
if (FAILED(hr)) {
MP_ERR(vo, "Couldn't get IDXGIAdapter\n");
goto done;
}
// Windows 8 can choose a software adapter even if mpv didn't ask for
// one. If this is the case, show a warning message.
hr = IDXGIAdapter_QueryInterface(dxgi_adapter, &IID_IDXGIAdapter1,
(void**)&dxgi_adapter1);
if (SUCCEEDED(hr)) {
DXGI_ADAPTER_DESC1 desc;
hr = IDXGIAdapter1_GetDesc1(dxgi_adapter1, &desc);
if (SUCCEEDED(hr)) {
if (desc.Flags & DXGI_ADAPTER_FLAG_SOFTWARE)
show_sw_adapter_msg(ctx);
// If the primary display adapter is a software adapter, the
// DXGI_ADAPTER_FLAG_SOFTWARE won't be set, but the device IDs
// should still match the Microsoft Basic Render Driver
if (desc.VendorId == 0x1414 && desc.DeviceId == 0x8c)
show_sw_adapter_msg(ctx);
}
}
hr = IDXGIAdapter_GetParent(dxgi_adapter, &IID_IDXGIFactory,
(void**)&dxgi_factory);
if (FAILED(hr)) {
MP_ERR(vo, "Couldn't get IDXGIFactory\n");
goto done;
}
// Prevent DXGI from making changes to the VO window, otherwise in
// non-DirectComposition mode it will hook the Alt+Enter keystroke and
// make it trigger an ugly transition to exclusive fullscreen mode
// instead of running the user-set command.
IDXGIFactory_MakeWindowAssociation(dxgi_factory, vo_w32_hwnd(vo),
DXGI_MWA_NO_WINDOW_CHANGES | DXGI_MWA_NO_ALT_ENTER |
DXGI_MWA_NO_PRINT_SCREEN);
}
done:
if (dxgi_dev)
IDXGIDevice_Release(dxgi_dev);
if (dxgi_adapter)
IDXGIAdapter_Release(dxgi_adapter);
if (dxgi_adapter1)
IDXGIAdapter1_Release(dxgi_adapter1);
if (dxgi_factory)
IDXGIFactory_Release(dxgi_factory);
}
static void *get_proc_address(const GLubyte *proc_name)
{
return eglGetProcAddress(proc_name);
}
static int angle_init(struct MPGLContext *ctx, int flags)
{
struct priv *p = ctx->priv;
struct vo *vo = ctx->vo;
if (!angle_load()) {
MP_VERBOSE(vo, "Failed to load LIBEGL.DLL\n");
goto fail;
}
if (!vo_w32_init(vo))
goto fail;
HDC dc = GetDC(vo_w32_hwnd(vo));
if (!dc) {
MP_FATAL(vo, "Couldn't get DC\n");
goto fail;
}
PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT =
(PFNEGLGETPLATFORMDISPLAYEXTPROC)eglGetProcAddress("eglGetPlatformDisplayEXT");
if (!eglGetPlatformDisplayEXT) {
MP_FATAL(vo, "Missing EGL_EXT_platform_base\n");
goto fail;
}
EGLint d3d_types[] = {EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
EGL_PLATFORM_ANGLE_TYPE_D3D9_ANGLE,
EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE};
EGLint d3d_dev_types[] = {EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_HARDWARE_ANGLE,
EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE};
for (int i = 0; i < MP_ARRAY_SIZE(d3d_types); i++) {
EGLint display_attributes[] = {
EGL_PLATFORM_ANGLE_TYPE_ANGLE,
d3d_types[i],
EGL_PLATFORM_ANGLE_DEVICE_TYPE_ANGLE,
d3d_dev_types[i],
EGL_NONE,
};
p->egl_display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, dc,
display_attributes);
if (p->egl_display == EGL_NO_DISPLAY)
continue;
if (!eglInitialize(p->egl_display, NULL, NULL)) {
p->egl_display = EGL_NO_DISPLAY;
continue;
}
if (d3d_dev_types[i] == EGL_PLATFORM_ANGLE_DEVICE_TYPE_WARP_ANGLE)
show_sw_adapter_msg(ctx);
break;
}
if (p->egl_display == EGL_NO_DISPLAY) {
MP_FATAL(vo, "Couldn't get display\n");
goto fail;
}
const char *exts = eglQueryString(p->egl_display, EGL_EXTENSIONS);
if (exts)
MP_DBG(ctx->vo, "EGL extensions: %s\n", exts);
eglBindAPI(EGL_OPENGL_ES_API);
if (eglGetError() != EGL_SUCCESS) {
MP_FATAL(vo, "Couldn't bind GLES API\n");
goto fail;
}
EGLConfig config = select_fb_config_egl(ctx);
if (!config)
goto fail;
int window_attribs_len = 0;
EGLint *window_attribs = NULL;
EGLint flip_val;
if (eglGetConfigAttrib(p->egl_display, config,
EGL_OPTIMAL_SURFACE_ORIENTATION_ANGLE, &flip_val))
{
if (flip_val == EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE) {
MP_TARRAY_APPEND(NULL, window_attribs, window_attribs_len,
EGL_SURFACE_ORIENTATION_ANGLE);
MP_TARRAY_APPEND(NULL, window_attribs, window_attribs_len,
EGL_SURFACE_ORIENTATION_INVERT_Y_ANGLE);
ctx->flip_v = true;
MP_VERBOSE(vo, "Rendering flipped.\n");
}
}
// EGL_DIRECT_COMPOSITION_ANGLE enables the use of flip-mode present, which
// avoids a copy of the video image and lowers vsync jitter, though the
// extension is only present on Windows 8 and up, and might have subpar
// behavior with some drivers (Intel? symptom - whole desktop is black for
// some seconds after spending some minutes in fullscreen and then leaving
// fullscreen).
if ((flags & VOFLAG_ANGLE_DCOMP) &&
strstr(exts, "EGL_ANGLE_direct_composition"))
{
MP_TARRAY_APPEND(NULL, window_attribs, window_attribs_len,
EGL_DIRECT_COMPOSITION_ANGLE);
MP_TARRAY_APPEND(NULL, window_attribs, window_attribs_len, EGL_TRUE);
MP_VERBOSE(vo, "Using DirectComposition.\n");
}
MP_TARRAY_APPEND(NULL, window_attribs, window_attribs_len, EGL_NONE);
p->egl_surface = eglCreateWindowSurface(p->egl_display, config,
vo_w32_hwnd(vo), window_attribs);
talloc_free(window_attribs);
if (p->egl_surface == EGL_NO_SURFACE) {
MP_FATAL(ctx->vo, "Could not create EGL surface!\n");
goto fail;
}
if (!(!p->use_es2 && create_context_egl(ctx, config, 3)) &&
!create_context_egl(ctx, config, 2))
{
MP_FATAL(ctx->vo, "Could not create EGL context!\n");
goto fail;
}
// Configure the underlying Direct3D device
d3d_init(ctx);
if (strstr(exts, "EGL_NV_post_sub_buffer")) {
p->eglPostSubBufferNV =
(PFNEGLPOSTSUBBUFFERNVPROC)eglGetProcAddress("eglPostSubBufferNV");
}
mpgl_load_functions(ctx->gl, get_proc_address, NULL, vo->log);
return 0;
fail:
angle_uninit(ctx);
return -1;
}
static int angle_init_es2(struct MPGLContext *ctx, int flags)
{
struct priv *p = ctx->priv;
p->use_es2 = true;
if (ctx->vo->probing) {
MP_VERBOSE(ctx->vo, "Not using this by default.\n");
return -1;
}
return angle_init(ctx, flags);
}
static int angle_reconfig(struct MPGLContext *ctx)
{
vo_w32_config(ctx->vo);
return 0;
}
static int angle_control(MPGLContext *ctx, int *events, int request, void *arg)
{
struct priv *p = ctx->priv;
int r = vo_w32_control(ctx->vo, events, request, arg);
// Calling eglPostSubBufferNV with a 0-sized region doesn't present a frame
// or block, but it does update the swapchain to match the window size
// See: https://groups.google.com/d/msg/angleproject/RvyVkjRCQGU/gfKfT64IAgAJ
if ((*events & VO_EVENT_RESIZE) && p->eglPostSubBufferNV)
p->eglPostSubBufferNV(p->egl_display, p->egl_surface, 0, 0, 0, 0);
return r;
}
static void angle_swap_buffers(MPGLContext *ctx)
{
struct priv *p = ctx->priv;
eglSwapBuffers(p->egl_display, p->egl_surface);
}
const struct mpgl_driver mpgl_driver_angle = {
.name = "angle",
.priv_size = sizeof(struct priv),
.init = angle_init,
.reconfig = angle_reconfig,
.swap_buffers = angle_swap_buffers,
.control = angle_control,
.uninit = angle_uninit,
};
const struct mpgl_driver mpgl_driver_angle_es2 = {
.name = "angle-es2",
.priv_size = sizeof(struct priv),
.init = angle_init_es2,
.reconfig = angle_reconfig,
.swap_buffers = angle_swap_buffers,
.control = angle_control,
.uninit = angle_uninit,
};
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