1 files changed, 71 insertions, 0 deletions
diff --git a/source/3rd-party/SDL2/src/video/raspberry/SDL_rpiopengles.c b/source/3rd-party/SDL2/src/video/raspberry/SDL_rpiopengles.c
new file mode 100644
index 0000000..b763007
--- /dev/null
+++ b/source/3rd-party/SDL2/src/video/raspberry/SDL_rpiopengles.c
@@ -0,0 +1,71 @@
+/*
+  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"
+#include "SDL_hints.h"
+#include "SDL_log.h"
+
+#if SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL
+
+#include "SDL_rpivideo.h"
+#include "SDL_rpiopengles.h"
+
+/* EGL implementation of SDL OpenGL support */
+
+void
+RPI_GLES_DefaultProfileConfig(_THIS, int *mask, int *major, int *minor)
+{
+    *mask = SDL_GL_CONTEXT_PROFILE_ES;
+    *major = 2;
+    *minor = 0;
+}
+
+int
+RPI_GLES_LoadLibrary(_THIS, const char *path) {
+    return SDL_EGL_LoadLibrary(_this, path, EGL_DEFAULT_DISPLAY, 0);
+}
+
+int
+RPI_GLES_SwapWindow(_THIS, SDL_Window * window) {
+    SDL_WindowData *wdata = ((SDL_WindowData *) window->driverdata);
+
+    if (!(_this->egl_data->eglSwapBuffers(_this->egl_data->egl_display, wdata->egl_surface))) {
+        SDL_LogError(SDL_LOG_CATEGORY_VIDEO, "eglSwapBuffers failed.");
+        return 0;
+    }
+
+    /* Wait immediately for vsync (as if we only had two buffers), for low input-lag scenarios.
+     * Run your SDL2 program with "SDL_RPI_DOUBLE_BUFFER=1 <program_name>" to enable this. */
+    if (wdata->double_buffer) {
+        SDL_LockMutex(wdata->vsync_cond_mutex);
+        SDL_CondWait(wdata->vsync_cond, wdata->vsync_cond_mutex);
+        SDL_UnlockMutex(wdata->vsync_cond_mutex);
+    }
+
+    return 0;
+}
+
+SDL_EGL_CreateContext_impl(RPI)
+SDL_EGL_MakeCurrent_impl(RPI)
+
+#endif /* SDL_VIDEO_DRIVER_RPI && SDL_VIDEO_OPENGL_EGL */
+
+/* vi: set ts=4 sw=4 expandtab: */
+