mirror of
https://github.com/Relintai/sdl2_frt.git
synced 2024-12-16 11:06:49 +01:00
WinRT: expanded OpenGL ES 2 support to enable recent updates to ANGLE/WinRT
ANGLE for WinRT has at least two versions: - an older version, which supports Windows 8.0 and 8.1. This is currently the "winrt" branch in MSOpenTech's ANGLE repository (at https://github.com/msopentech/angle) - a newer version, which drops support for Windows 8.0, but is under more active development (via MSOpenTech's "future-dev" branch), and which was recently merged into the ANGLE project's official "master" branch (at https://chromium.googlesource.com/angle/angle) Both versions are setup using slightly different APIs. SDL/WinRT will now attempt to detect which version is being used, and configure it appropriately.
This commit is contained in:
David Ludwig
parent
1c85ba23df
commit
0bcc254e4f
@ -36,7 +36,10 @@ using namespace Windows::UI::Core;
|
||||
|
||||
/* ANGLE/WinRT constants */
|
||||
static const int ANGLE_D3D_FEATURE_LEVEL_ANY = 0;
|
||||
|
||||
#define EGL_PLATFORM_ANGLE_ANGLE 0x3201
|
||||
#define EGL_PLATFORM_ANGLE_TYPE_ANGLE 0x3202
|
||||
#define EGL_PLATFORM_ANGLE_TYPE_DEFAULT_ANGLE 0x3203
|
||||
#define EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE 0x3205
|
||||
|
||||
/*
|
||||
* SDL/EGL top-level implementation
|
||||
@ -52,32 +55,56 @@ WINRT_GLES_LoadLibrary(_THIS, const char *path)
|
||||
}
|
||||
|
||||
/* Load ANGLE/WinRT-specific functions */
|
||||
CreateWinrtEglWindow_Function CreateWinrtEglWindow = (CreateWinrtEglWindow_Function) SDL_LoadFunction(_this->egl_data->egl_dll_handle, "CreateWinrtEglWindow");
|
||||
if (!CreateWinrtEglWindow) {
|
||||
return SDL_SetError("Could not retrieve ANGLE/WinRT function CreateWinrtEglWindow");
|
||||
CreateWinrtEglWindow_Old_Function CreateWinrtEglWindow = (CreateWinrtEglWindow_Old_Function) SDL_LoadFunction(_this->egl_data->egl_dll_handle, "CreateWinrtEglWindow");
|
||||
if (CreateWinrtEglWindow) {
|
||||
/* 'CreateWinrtEglWindow' was found, which means that an an older
|
||||
* version of ANGLE/WinRT is being used. Continue setting up EGL,
|
||||
* as appropriate to this version of ANGLE.
|
||||
*/
|
||||
|
||||
/* Create an ANGLE/WinRT EGL-window */
|
||||
/* TODO, WinRT: check for XAML usage before accessing the CoreWindow, as not doing so could lead to a crash */
|
||||
CoreWindow ^ native_win = CoreWindow::GetForCurrentThread();
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_win = reinterpret_cast<IUnknown *>(native_win);
|
||||
HRESULT result = CreateWinrtEglWindow(cpp_win, ANGLE_D3D_FEATURE_LEVEL_ANY, &(video_data->winrtEglWindow));
|
||||
if (FAILED(result)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Call eglGetDisplay and eglInitialize as appropriate. On other
|
||||
* platforms, this would probably get done by SDL_EGL_LoadLibrary,
|
||||
* however ANGLE/WinRT's current implementation (as of Mar 22, 2014) of
|
||||
* eglGetDisplay requires that a C++ object be passed into it, so the
|
||||
* call will be made in this file, a C++ file, instead.
|
||||
*/
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_display = video_data->winrtEglWindow;
|
||||
_this->egl_data->egl_display = ((eglGetDisplay_Old_Function)_this->egl_data->eglGetDisplay)(cpp_display);
|
||||
if (!_this->egl_data->egl_display) {
|
||||
return SDL_SetError("Could not get EGL display");
|
||||
}
|
||||
} else {
|
||||
const EGLint displayAttributes[] = {
|
||||
EGL_PLATFORM_ANGLE_TYPE_ANGLE, EGL_PLATFORM_ANGLE_TYPE_D3D11_ANGLE,
|
||||
EGL_NONE,
|
||||
};
|
||||
|
||||
/* 'CreateWinrtEglWindow' was NOT found, which either means that a
|
||||
* newer version of ANGLE/WinRT is being used, or that we don't have
|
||||
* a valid copy of ANGLE.
|
||||
*
|
||||
* Try loading ANGLE as if it were the newer version.
|
||||
*/
|
||||
eglGetPlatformDisplayEXT_Function eglGetPlatformDisplayEXT = (eglGetPlatformDisplayEXT_Function)_this->egl_data->eglGetProcAddress("eglGetPlatformDisplayEXT");
|
||||
if (!eglGetPlatformDisplayEXT) {
|
||||
return SDL_SetError("Could not retrieve ANGLE/WinRT display function(s)");
|
||||
}
|
||||
|
||||
_this->egl_data->egl_display = eglGetPlatformDisplayEXT(EGL_PLATFORM_ANGLE_ANGLE, EGL_DEFAULT_DISPLAY, displayAttributes);
|
||||
if (!_this->egl_data->egl_display) {
|
||||
return SDL_SetError("Could not get EGL display");
|
||||
}
|
||||
}
|
||||
|
||||
/* Create an ANGLE/WinRT EGL-window */
|
||||
/* TODO, WinRT: check for XAML usage before accessing the CoreWindow, as not doing so could lead to a crash */
|
||||
CoreWindow ^ native_win = CoreWindow::GetForCurrentThread();
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_win = reinterpret_cast<IUnknown *>(native_win);
|
||||
HRESULT result = CreateWinrtEglWindow(cpp_win, ANGLE_D3D_FEATURE_LEVEL_ANY, &(video_data->winrtEglWindow));
|
||||
if (FAILED(result)) {
|
||||
return -1;
|
||||
}
|
||||
|
||||
/* Call eglGetDisplay and eglInitialize as appropriate. On other
|
||||
* platforms, this would probably get done by SDL_EGL_LoadLibrary,
|
||||
* however ANGLE/WinRT's current implementation (as of Mar 22, 2014) of
|
||||
* eglGetDisplay requires that a C++ object be passed into it, so the
|
||||
* call will be made in this file, a C++ file, instead.
|
||||
*/
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_display = video_data->winrtEglWindow;
|
||||
_this->egl_data->egl_display = ((eglGetDisplay_Function)_this->egl_data->eglGetDisplay)(cpp_display);
|
||||
if (!_this->egl_data->egl_display) {
|
||||
return SDL_SetError("Could not get EGL display");
|
||||
}
|
||||
|
||||
if (_this->egl_data->eglInitialize(_this->egl_data->egl_display, NULL, NULL) != EGL_TRUE) {
|
||||
return SDL_SetError("Could not initialize EGL");
|
||||
}
|
||||
|
||||
@ -47,18 +47,22 @@ extern int WINRT_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext cont
|
||||
/* Typedefs for ANGLE/WinRT's C++-based native-display and native-window types,
|
||||
* which are used when calling eglGetDisplay and eglCreateWindowSurface.
|
||||
*/
|
||||
typedef Microsoft::WRL::ComPtr<IUnknown> WINRT_EGLNativeWindowType;
|
||||
typedef WINRT_EGLNativeWindowType WINRT_EGLNativeDisplayType;
|
||||
typedef Microsoft::WRL::ComPtr<IUnknown> WINRT_EGLNativeWindowType_Old;
|
||||
|
||||
/* Function pointer typedefs for ANGLE/WinRT's functions that require
|
||||
* parameter customization [by passing in C++ objects].
|
||||
/* Function pointer typedefs for 'old' ANGLE/WinRT's functions, which may
|
||||
* require that C++ objects be passed in:
|
||||
*/
|
||||
typedef EGLDisplay (EGLAPIENTRY *eglGetDisplay_Function)(WINRT_EGLNativeWindowType);
|
||||
typedef EGLSurface (EGLAPIENTRY *eglCreateWindowSurface_Function)(EGLDisplay, EGLConfig, WINRT_EGLNativeWindowType, const EGLint *);
|
||||
typedef HRESULT (EGLAPIENTRY *CreateWinrtEglWindow_Function)(Microsoft::WRL::ComPtr<IUnknown>, int, IUnknown ** result);
|
||||
typedef EGLDisplay (EGLAPIENTRY *eglGetDisplay_Old_Function)(WINRT_EGLNativeWindowType_Old);
|
||||
typedef EGLSurface (EGLAPIENTRY *eglCreateWindowSurface_Old_Function)(EGLDisplay, EGLConfig, WINRT_EGLNativeWindowType_Old, const EGLint *);
|
||||
typedef HRESULT (EGLAPIENTRY *CreateWinrtEglWindow_Old_Function)(Microsoft::WRL::ComPtr<IUnknown>, int, IUnknown ** result);
|
||||
|
||||
#endif /* __cplusplus */
|
||||
|
||||
/* Function pointer typedefs for 'new' ANGLE/WinRT functions, which, unlike
|
||||
* the old functions, do not require C++ support and work with plain C.
|
||||
*/
|
||||
typedef EGLDisplay (EGLAPIENTRY *eglGetPlatformDisplayEXT_Function)(EGLenum, void *, const EGLint *);
|
||||
|
||||
#endif /* SDL_VIDEO_DRIVER_WINRT && SDL_VIDEO_OPENGL_EGL */
|
||||
|
||||
#endif /* _SDL_winrtopengles_h */
|
||||
|
||||
@ -328,13 +328,33 @@ WINRT_CreateWindow(_THIS, SDL_Window * window)
|
||||
return SDL_SetError(buf);
|
||||
}
|
||||
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_winrtEglWindow = video_data->winrtEglWindow;
|
||||
data->egl_surface = ((eglCreateWindowSurface_Function)_this->egl_data->eglCreateWindowSurface)(
|
||||
_this->egl_data->egl_display,
|
||||
_this->egl_data->egl_config,
|
||||
cpp_winrtEglWindow, NULL);
|
||||
if (data->egl_surface == NULL) {
|
||||
return SDL_SetError("eglCreateWindowSurface failed");
|
||||
if (video_data->winrtEglWindow) { /* ... is the 'old' version of ANGLE/WinRT being used? */
|
||||
/* Attempt to create a window surface using older versions of
|
||||
* ANGLE/WinRT:
|
||||
*/
|
||||
Microsoft::WRL::ComPtr<IUnknown> cpp_winrtEglWindow = video_data->winrtEglWindow;
|
||||
data->egl_surface = ((eglCreateWindowSurface_Old_Function)_this->egl_data->eglCreateWindowSurface)(
|
||||
_this->egl_data->egl_display,
|
||||
_this->egl_data->egl_config,
|
||||
cpp_winrtEglWindow, NULL);
|
||||
if (data->egl_surface == NULL) {
|
||||
return SDL_SetError("eglCreateWindowSurface failed");
|
||||
}
|
||||
} else if (data->coreWindow.Get() != nullptr) {
|
||||
/* Attempt to create a window surface using newer versions of
|
||||
* ANGLE/WinRT:
|
||||
*/
|
||||
IInspectable * coreWindowAsIInspectable = reinterpret_cast<IInspectable *>(data->coreWindow.Get());
|
||||
data->egl_surface = _this->egl_data->eglCreateWindowSurface(
|
||||
_this->egl_data->egl_display,
|
||||
_this->egl_data->egl_config,
|
||||
coreWindowAsIInspectable,
|
||||
NULL);
|
||||
if (data->egl_surface == NULL) {
|
||||
return SDL_SetError("eglCreateWindowSurface failed");
|
||||
}
|
||||
} else {
|
||||
return SDL_SetError("No supported means to create an EGL window surface are available");
|
||||
}
|
||||
}
|
||||
#endif
|
||||
|
||||
Loading…
Reference in New Issue
Block a user