0e45984fa0
The internal function SDL_EGL_LoadLibrary() did not delete and remove a mostly uninitialized data structure if loading the library first failed. A later try to use EGL then skipped initialization and assumed it was previously successful because the data structure now already existed. This led to at least one crash in the internal function SDL_EGL_ChooseConfig() because a NULL pointer was dereferenced to make a call to eglBindAPI().
184 lines
5.2 KiB
Objective-C
184 lines
5.2 KiB
Objective-C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2015 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_UIKIT
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#import <UIKit/UIKit.h>
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#include "SDL_video.h"
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#include "SDL_mouse.h"
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#include "SDL_hints.h"
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#include "../SDL_sysvideo.h"
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#include "../SDL_pixels_c.h"
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#include "../../events/SDL_events_c.h"
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#include "SDL_uikitvideo.h"
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#include "SDL_uikitevents.h"
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#include "SDL_uikitmodes.h"
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#include "SDL_uikitwindow.h"
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#include "SDL_uikitopengles.h"
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#define UIKITVID_DRIVER_NAME "uikit"
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/* Initialization/Query functions */
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static int UIKit_VideoInit(_THIS);
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static void UIKit_VideoQuit(_THIS);
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/* DUMMY driver bootstrap functions */
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static int
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UIKit_Available(void)
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{
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return 1;
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}
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static void UIKit_DeleteDevice(SDL_VideoDevice * device)
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{
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SDL_free(device);
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}
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static SDL_VideoDevice *
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UIKit_CreateDevice(int devindex)
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{
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SDL_VideoDevice *device;
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/* Initialize all variables that we clean on shutdown */
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device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
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if (!device) {
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SDL_free(device);
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SDL_OutOfMemory();
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return (0);
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}
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/* Set the function pointers */
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device->VideoInit = UIKit_VideoInit;
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device->VideoQuit = UIKit_VideoQuit;
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device->GetDisplayModes = UIKit_GetDisplayModes;
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device->SetDisplayMode = UIKit_SetDisplayMode;
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device->PumpEvents = UIKit_PumpEvents;
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device->SuspendScreenSaver = UIKit_SuspendScreenSaver;
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device->CreateWindow = UIKit_CreateWindow;
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device->SetWindowTitle = UIKit_SetWindowTitle;
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device->ShowWindow = UIKit_ShowWindow;
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device->HideWindow = UIKit_HideWindow;
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device->RaiseWindow = UIKit_RaiseWindow;
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device->SetWindowBordered = UIKit_SetWindowBordered;
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device->SetWindowFullscreen = UIKit_SetWindowFullscreen;
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device->DestroyWindow = UIKit_DestroyWindow;
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device->GetWindowWMInfo = UIKit_GetWindowWMInfo;
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#if SDL_IPHONE_KEYBOARD
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device->HasScreenKeyboardSupport = UIKit_HasScreenKeyboardSupport;
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device->ShowScreenKeyboard = UIKit_ShowScreenKeyboard;
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device->HideScreenKeyboard = UIKit_HideScreenKeyboard;
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device->IsScreenKeyboardShown = UIKit_IsScreenKeyboardShown;
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device->SetTextInputRect = UIKit_SetTextInputRect;
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#endif
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/* OpenGL (ES) functions */
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device->GL_MakeCurrent = UIKit_GL_MakeCurrent;
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device->GL_GetDrawableSize = UIKit_GL_GetDrawableSize;
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device->GL_SwapWindow = UIKit_GL_SwapWindow;
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device->GL_CreateContext = UIKit_GL_CreateContext;
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device->GL_DeleteContext = UIKit_GL_DeleteContext;
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device->GL_GetProcAddress = UIKit_GL_GetProcAddress;
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device->GL_LoadLibrary = UIKit_GL_LoadLibrary;
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device->free = UIKit_DeleteDevice;
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device->gl_config.accelerated = 1;
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return device;
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}
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VideoBootStrap UIKIT_bootstrap = {
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UIKITVID_DRIVER_NAME, "SDL UIKit video driver",
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UIKit_Available, UIKit_CreateDevice
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};
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int
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UIKit_VideoInit(_THIS)
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{
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_this->gl_config.driver_loaded = 1;
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if (UIKit_InitModes(_this) < 0) {
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return -1;
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}
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return 0;
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}
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void
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UIKit_VideoQuit(_THIS)
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{
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UIKit_QuitModes(_this);
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}
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void
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UIKit_SuspendScreenSaver(_THIS)
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{
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@autoreleasepool {
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/* Ignore ScreenSaver API calls if the idle timer hint has been set. */
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/* FIXME: The idle timer hint should be deprecated for SDL 2.1. */
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if (SDL_GetHint(SDL_HINT_IDLE_TIMER_DISABLED) == NULL) {
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UIApplication *app = [UIApplication sharedApplication];
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/* Prevent the display from dimming and going to sleep. */
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app.idleTimerDisabled = (_this->suspend_screensaver != SDL_FALSE);
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}
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}
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}
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BOOL
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UIKit_IsSystemVersionAtLeast(double version)
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{
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return [[UIDevice currentDevice].systemVersion doubleValue] >= version;
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}
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CGRect
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UIKit_ComputeViewFrame(SDL_Window *window, UIScreen *screen)
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{
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BOOL hasiOS7 = UIKit_IsSystemVersionAtLeast(7.0);
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if (hasiOS7 || (window->flags & (SDL_WINDOW_BORDERLESS|SDL_WINDOW_FULLSCREEN))) {
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/* The view should always show behind the status bar in iOS 7+. */
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return screen.bounds;
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} else {
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return screen.applicationFrame;
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}
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}
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/*
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* iOS log support.
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*
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* This doesn't really have aything to do with the interfaces of the SDL video
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* subsystem, but we need to stuff this into an Objective-C source code file.
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*/
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void SDL_NSLog(const char *text)
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{
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NSLog(@"%s", text);
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}
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#endif /* SDL_VIDEO_DRIVER_UIKIT */
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/* vi: set ts=4 sw=4 expandtab: */
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