*initHEADmaster

1 files changed, 131 insertions, 0 deletions

diff --git a/source/3rd-party/SDL2/src/video/windows/SDL_windowsopengles.c b/source/3rd-party/SDL2/src/video/windows/SDL_windowsopengles.c
new file mode 100644
index 0000000..0ff61c3
--- /dev/null
+++ b/source/3rd-party/SDL2/src/video/windows/SDL_windowsopengles.c
@@ -0,0 +1,131 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2018 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 SDL_VIDEO_DRIVER_WINDOWS && SDL_VIDEO_OPENGL_EGL
+
+#include "SDL_windowsvideo.h"
+#include "SDL_windowsopengles.h"
+#include "SDL_windowsopengl.h"
+#include "SDL_log.h"
+
+/* EGL implementation of SDL OpenGL support */
+
+int
+WIN_GLES_LoadLibrary(_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) {
+#if 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_DeleteContext = WIN_GL_DeleteContext;
+        return WIN_GL_LoadLibrary(_this, path);
+#else
+        return SDL_SetError("SDL not configured with OpenGL/WGL support");
+#endif
+    }
+    
+    if (_this->egl_data == NULL) {
+        return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0);
+    }
+
+    return 0;
+}
+
+SDL_GLContext
+WIN_GLES_CreateContext(_THIS, SDL_Window * window)
+{
+    SDL_GLContext context;
+    SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
+
+#if SDL_VIDEO_OPENGL_WGL
+    if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
+        /* 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_DeleteContext = WIN_GL_DeleteContext;
+
+        if (WIN_GL_LoadLibrary(_this, NULL) != 0) {
+            return NULL;
+        }
+
+        return WIN_GL_CreateContext(_this, window);
+    }
+#endif
+
+    context = SDL_EGL_CreateContext(_this, data->egl_surface);
+    return context;
+}
+
+void
+WIN_GLES_DeleteContext(_THIS, SDL_GLContext context)
+{
+    SDL_EGL_DeleteContext(_this, context);
+    WIN_GLES_UnloadLibrary(_this);
+}
+
+SDL_EGL_SwapWindow_impl(WIN)
+SDL_EGL_MakeCurrent_impl(WIN)
+
+int
+WIN_GLES_SetupWindow(_THIS, SDL_Window * window)
+{
+    /* The current context is lost in here; save it and reset it. */
+    SDL_WindowData *windowdata = (SDL_WindowData *) window->driverdata;
+    SDL_Window *current_win = SDL_GL_GetCurrentWindow();
+    SDL_GLContext current_ctx = SDL_GL_GetCurrentContext();
+
+
+    if (_this->egl_data == NULL) {
+        if (SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0) < 0) {
+            SDL_EGL_UnloadLibrary(_this);
+            return -1;
+        }
+    }
+  
+    /* Create the GLES window surface */
+    windowdata->egl_surface = SDL_EGL_CreateSurface(_this, (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);    
+}
+
+#endif /* SDL_VIDEO_DRIVER_WINDOWS && SDL_VIDEO_OPENGL_EGL */
+
+/* vi: set ts=4 sw=4 expandtab: */