143 lines
5.3 KiB
C
143 lines
5.3 KiB
C
/*
|
|
Simple DirectMedia Layer
|
|
Copyright (C) 1997-2025 Sam Lantinga <slouken@libsdl.org>
|
|
|
|
This software is provided 'as-is', without any express or implied
|
|
warranty. In no event will the authors be held liable for any damages
|
|
arising from the use of this software.
|
|
|
|
Permission is granted to anyone to use this software for any purpose,
|
|
including commercial applications, and to alter it and redistribute it
|
|
freely, subject to the following restrictions:
|
|
|
|
1. The origin of this software must not be misrepresented; you must not
|
|
claim that you wrote the original software. If you use this software
|
|
in a product, an acknowledgment in the product documentation would be
|
|
appreciated but is not required.
|
|
2. Altered source versions must be plainly marked as such, and must not be
|
|
misrepresented as being the original software.
|
|
3. This notice may not be removed or altered from any source distribution.
|
|
*/
|
|
#include "SDL_internal.h"
|
|
|
|
#if defined(SDL_VIDEO_DRIVER_WINDOWS) && defined(SDL_VIDEO_OPENGL_EGL) && !defined(SDL_PLATFORM_XBOXONE) && !defined(SDL_PLATFORM_XBOXSERIES)
|
|
|
|
#include "SDL_windowsvideo.h"
|
|
#include "SDL_windowsopengles.h"
|
|
#include "SDL_windowsopengl.h"
|
|
#include "SDL_windowswindow.h"
|
|
|
|
// EGL implementation of SDL OpenGL support
|
|
|
|
bool WIN_GLES_LoadLibrary(SDL_VideoDevice *_this, const char *path)
|
|
{
|
|
|
|
// If the profile requested is not GL ES, switch over to WIN_GL functions
|
|
if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES &&
|
|
!SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, false)) {
|
|
#ifdef SDL_VIDEO_OPENGL_WGL
|
|
WIN_GLES_UnloadLibrary(_this);
|
|
_this->GL_LoadLibrary = WIN_GL_LoadLibrary;
|
|
_this->GL_GetProcAddress = WIN_GL_GetProcAddress;
|
|
_this->GL_UnloadLibrary = WIN_GL_UnloadLibrary;
|
|
_this->GL_CreateContext = WIN_GL_CreateContext;
|
|
_this->GL_MakeCurrent = WIN_GL_MakeCurrent;
|
|
_this->GL_SetSwapInterval = WIN_GL_SetSwapInterval;
|
|
_this->GL_GetSwapInterval = WIN_GL_GetSwapInterval;
|
|
_this->GL_SwapWindow = WIN_GL_SwapWindow;
|
|
_this->GL_DestroyContext = WIN_GL_DestroyContext;
|
|
_this->GL_GetEGLSurface = NULL;
|
|
return WIN_GL_LoadLibrary(_this, path);
|
|
#else
|
|
return SDL_SetError("SDL not configured with OpenGL/WGL support");
|
|
#endif
|
|
}
|
|
|
|
if (!_this->egl_data) {
|
|
return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform);
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
SDL_GLContext WIN_GLES_CreateContext(SDL_VideoDevice *_this, SDL_Window *window)
|
|
{
|
|
SDL_GLContext context;
|
|
SDL_WindowData *data = window->internal;
|
|
|
|
#ifdef SDL_VIDEO_OPENGL_WGL
|
|
if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES &&
|
|
!SDL_GetHintBoolean(SDL_HINT_VIDEO_FORCE_EGL, false)) {
|
|
// Switch to WGL based functions
|
|
WIN_GLES_UnloadLibrary(_this);
|
|
_this->GL_LoadLibrary = WIN_GL_LoadLibrary;
|
|
_this->GL_GetProcAddress = WIN_GL_GetProcAddress;
|
|
_this->GL_UnloadLibrary = WIN_GL_UnloadLibrary;
|
|
_this->GL_CreateContext = WIN_GL_CreateContext;
|
|
_this->GL_MakeCurrent = WIN_GL_MakeCurrent;
|
|
_this->GL_SetSwapInterval = WIN_GL_SetSwapInterval;
|
|
_this->GL_GetSwapInterval = WIN_GL_GetSwapInterval;
|
|
_this->GL_SwapWindow = WIN_GL_SwapWindow;
|
|
_this->GL_DestroyContext = WIN_GL_DestroyContext;
|
|
_this->GL_GetEGLSurface = NULL;
|
|
|
|
if (!WIN_GL_LoadLibrary(_this, NULL)) {
|
|
return NULL;
|
|
}
|
|
|
|
return WIN_GL_CreateContext(_this, window);
|
|
}
|
|
#endif
|
|
|
|
context = SDL_EGL_CreateContext(_this, data->egl_surface);
|
|
return context;
|
|
}
|
|
|
|
bool WIN_GLES_DestroyContext(SDL_VideoDevice *_this, SDL_GLContext context)
|
|
{
|
|
return SDL_EGL_DestroyContext(_this, context);
|
|
}
|
|
|
|
/* *INDENT-OFF* */ // clang-format off
|
|
SDL_EGL_SwapWindow_impl(WIN)
|
|
SDL_EGL_MakeCurrent_impl(WIN)
|
|
/* *INDENT-ON* */ // clang-format on
|
|
|
|
bool WIN_GLES_SetupWindow(SDL_VideoDevice *_this, SDL_Window *window)
|
|
{
|
|
// The current context is lost in here; save it and reset it.
|
|
SDL_WindowData *windowdata = window->internal;
|
|
SDL_Window *current_win = SDL_GL_GetCurrentWindow();
|
|
SDL_GLContext current_ctx = SDL_GL_GetCurrentContext();
|
|
|
|
if (!_this->egl_data) {
|
|
// !!! FIXME: commenting out this assertion is (I think) incorrect; figure out why driver_loaded is wrong for ANGLE instead. --ryan.
|
|
#if 0 // When hint SDL_HINT_OPENGL_ES_DRIVER is set to "1" (e.g. for ANGLE support), _this->gl_config.driver_loaded can be 1, while the below lines function.
|
|
SDL_assert(!_this->gl_config.driver_loaded);
|
|
#endif
|
|
if (!SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, _this->gl_config.egl_platform)) {
|
|
SDL_EGL_UnloadLibrary(_this);
|
|
return false;
|
|
}
|
|
_this->gl_config.driver_loaded = 1;
|
|
}
|
|
|
|
// Create the GLES window surface
|
|
windowdata->egl_surface = SDL_EGL_CreateSurface(_this, window, (NativeWindowType)windowdata->hwnd);
|
|
|
|
if (windowdata->egl_surface == EGL_NO_SURFACE) {
|
|
return SDL_SetError("Could not create GLES window surface");
|
|
}
|
|
|
|
return WIN_GLES_MakeCurrent(_this, current_win, current_ctx);
|
|
}
|
|
|
|
EGLSurface WIN_GLES_GetEGLSurface(SDL_VideoDevice *_this, SDL_Window *window)
|
|
{
|
|
SDL_WindowData *windowdata = window->internal;
|
|
|
|
return windowdata->egl_surface;
|
|
}
|
|
|
|
#endif // SDL_VIDEO_DRIVER_WINDOWS && SDL_VIDEO_OPENGL_EGL
|