cocoa: Added two missing files from hg changeset da7ba330ec68.

Fixes Bugzilla #3975.
libsdl-org · Dec 6, 2017 · ef6e629 · ef6e629
1 parent 351d6d4
commit ef6e629
Show file tree

Hide file tree

Showing 2 changed files with 181 additions and 0 deletions.
diff --git a/src/video/cocoa/SDL_cocoaopengles.h b/src/video/cocoa/SDL_cocoaopengles.h
@@ -0,0 +1,49 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2017 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"
+
+#ifndef SDL_cocoaopengles_h_
+#define SDL_cocoaopengles_h_
+
+#if SDL_VIDEO_OPENGL_EGL
+
+#include "../SDL_sysvideo.h"
+#include "../SDL_egl_c.h"
+
+/* OpenGLES functions */
+#define Cocoa_GLES_GetAttribute SDL_EGL_GetAttribute
+#define Cocoa_GLES_GetProcAddress SDL_EGL_GetProcAddress
+#define Cocoa_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
+#define Cocoa_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
+#define Cocoa_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
+
+extern int Cocoa_GLES_LoadLibrary(_THIS, const char *path);
+extern SDL_GLContext Cocoa_GLES_CreateContext(_THIS, SDL_Window * window);
+extern int Cocoa_GLES_SwapWindow(_THIS, SDL_Window * window);
+extern int Cocoa_GLES_MakeCurrent(_THIS, SDL_Window * window, SDL_GLContext context);
+extern void Cocoa_GLES_DeleteContext(_THIS, SDL_GLContext context);
+extern int Cocoa_GLES_SetupWindow(_THIS, SDL_Window * window);
+
+#endif /* SDL_VIDEO_OPENGL_EGL */
+
+#endif /* SDL_cocoaopengles_h_ */
+
+/* vi: set ts=4 sw=4 expandtab: */
diff --git a/src/video/cocoa/SDL_cocoaopengles.m b/src/video/cocoa/SDL_cocoaopengles.m
@@ -0,0 +1,132 @@
+/*
+  Simple DirectMedia Layer
+  Copyright (C) 1997-2017 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_COCOA && SDL_VIDEO_OPENGL_EGL
+
+#include "SDL_cocoavideo.h"
+#include "SDL_cocoaopengles.h"
+#include "SDL_cocoaopengl.h"
+#include "SDL_log.h"
+
+/* EGL implementation of SDL OpenGL support */
+
+int
+Cocoa_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_CGL
+        Cocoa_GLES_UnloadLibrary(_this);
+        _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
+        _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
+        _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
+        _this->GL_CreateContext = Cocoa_GL_CreateContext;
+        _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
+        _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
+        _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
+        _this->GL_SwapWindow = Cocoa_GL_SwapWindow;
+        _this->GL_DeleteContext = Cocoa_GL_DeleteContext;
+        return Cocoa_GL_LoadLibrary(_this, path);
+#else
+        return SDL_SetError("SDL not configured with OpenGL/CGL support");
+#endif
+    }
+
+    if (_this->egl_data == NULL) {
+        return SDL_EGL_LoadLibrary(_this, NULL, EGL_DEFAULT_DISPLAY, 0);
+    }
+
+    return 0;
+}
+
+SDL_GLContext
+Cocoa_GLES_CreateContext(_THIS, SDL_Window * window)
+{
+    SDL_GLContext context;
+    SDL_WindowData *data = (SDL_WindowData *)window->driverdata;
+
+#if SDL_VIDEO_OPENGL_CGL
+    if (_this->gl_config.profile_mask != SDL_GL_CONTEXT_PROFILE_ES) {
+        /* Switch to CGL based functions */
+        Cocoa_GLES_UnloadLibrary(_this);
+        _this->GL_LoadLibrary = Cocoa_GL_LoadLibrary;
+        _this->GL_GetProcAddress = Cocoa_GL_GetProcAddress;
+        _this->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary;
+        _this->GL_CreateContext = Cocoa_GL_CreateContext;
+        _this->GL_MakeCurrent = Cocoa_GL_MakeCurrent;
+        _this->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval;
+        _this->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval;
+        _this->GL_SwapWindow = Cocoa_GL_SwapWindow;
+        _this->GL_DeleteContext = Cocoa_GL_DeleteContext;
+
+        if (Cocoa_GL_LoadLibrary(_this, NULL) != 0) {
+            return NULL;
+        }
+
+        return Cocoa_GL_CreateContext(_this, window);
+    }
+#endif
+
+    context = SDL_EGL_CreateContext(_this, data->egl_surface);
+    return context;
+}
+
+void
+Cocoa_GLES_DeleteContext(_THIS, SDL_GLContext context)
+{
+    SDL_EGL_DeleteContext(_this, context);
+    Cocoa_GLES_UnloadLibrary(_this);
+}
+
+SDL_EGL_SwapWindow_impl(Cocoa)
+SDL_EGL_MakeCurrent_impl(Cocoa)
+
+int
+Cocoa_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 */
+    NSView* v = windowdata->nswindow.contentView;
+    windowdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType)[v layer]);
+
+    if (windowdata->egl_surface == EGL_NO_SURFACE) {
+        return SDL_SetError("Could not create GLES window surface");
+    }
+
+    return Cocoa_GLES_MakeCurrent(_this, current_win, current_ctx);
+}
+
+#endif /* SDL_VIDEO_DRIVER_COCOA && SDL_VIDEO_OPENGL_EGL */
+
+/* vi: set ts=4 sw=4 expandtab: */