src/video/android/SDL_androidvideo.c
author Sylvain Becker <sylvain.becker@gmail.com>
Thu, 03 Jan 2019 20:18:29 +0100
changeset 12498 c2e223dc5da9
parent 12496 93771c30420b
child 12503 806492103856
permissions -rw-r--r--
Android: use Mutex instead of Semphore for bug 4142
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2018 Sam Lantinga <slouken@libsdl.org>
     4 
     5   This software is provided 'as-is', without any express or implied
     6   warranty.  In no event will the authors be held liable for any damages
     7   arising from the use of this software.
     8 
     9   Permission is granted to anyone to use this software for any purpose,
    10   including commercial applications, and to alter it and redistribute it
    11   freely, subject to the following restrictions:
    12 
    13   1. The origin of this software must not be misrepresented; you must not
    14      claim that you wrote the original software. If you use this software
    15      in a product, an acknowledgment in the product documentation would be
    16      appreciated but is not required.
    17   2. Altered source versions must be plainly marked as such, and must not be
    18      misrepresented as being the original software.
    19   3. This notice may not be removed or altered from any source distribution.
    20 */
    21 #include "../../SDL_internal.h"
    22 
    23 #if SDL_VIDEO_DRIVER_ANDROID
    24 
    25 /* Android SDL video driver implementation */
    26 
    27 #include "SDL_video.h"
    28 #include "SDL_mouse.h"
    29 #include "../SDL_sysvideo.h"
    30 #include "../SDL_pixels_c.h"
    31 #include "../../events/SDL_events_c.h"
    32 #include "../../events/SDL_windowevents_c.h"
    33 
    34 #include "SDL_androidvideo.h"
    35 #include "SDL_androidgl.h"
    36 #include "SDL_androidclipboard.h"
    37 #include "SDL_androidevents.h"
    38 #include "SDL_androidkeyboard.h"
    39 #include "SDL_androidmouse.h"
    40 #include "SDL_androidtouch.h"
    41 #include "SDL_androidwindow.h"
    42 #include "SDL_androidvulkan.h"
    43 
    44 #define ANDROID_VID_DRIVER_NAME "Android"
    45 
    46 /* Initialization/Query functions */
    47 static int Android_VideoInit(_THIS);
    48 static void Android_VideoQuit(_THIS);
    49 int Android_GetDisplayDPI(_THIS, SDL_VideoDisplay *display, float *ddpi, float *hdpi, float *vdpi);
    50 
    51 #include "../SDL_egl_c.h"
    52 #define Android_GLES_GetProcAddress SDL_EGL_GetProcAddress
    53 #define Android_GLES_UnloadLibrary SDL_EGL_UnloadLibrary
    54 #define Android_GLES_SetSwapInterval SDL_EGL_SetSwapInterval
    55 #define Android_GLES_GetSwapInterval SDL_EGL_GetSwapInterval
    56 #define Android_GLES_DeleteContext SDL_EGL_DeleteContext
    57 
    58 /* Android driver bootstrap functions */
    59 
    60 
    61 /* These are filled in with real values in Android_SetScreenResolution on init (before SDL_main()) */
    62 int Android_SurfaceWidth = 0;
    63 int Android_SurfaceHeight = 0;
    64 int Android_DeviceWidth = 0;
    65 int Android_DeviceHeight = 0;
    66 static Uint32 Android_ScreenFormat = SDL_PIXELFORMAT_UNKNOWN;
    67 static int Android_ScreenRate = 0;
    68 
    69 SDL_sem *Android_PauseSem = NULL, *Android_ResumeSem = NULL;
    70 SDL_mutex *Android_ActivityMutex = NULL;
    71 
    72 static int
    73 Android_Available(void)
    74 {
    75     return 1;
    76 }
    77 
    78 static void
    79 Android_SuspendScreenSaver(_THIS)
    80 {
    81     Android_JNI_SuspendScreenSaver(_this->suspend_screensaver);
    82 }
    83 
    84 static void
    85 Android_DeleteDevice(SDL_VideoDevice *device)
    86 {
    87     SDL_free(device->driverdata);
    88     SDL_free(device);
    89 }
    90 
    91 static SDL_VideoDevice *
    92 Android_CreateDevice(int devindex)
    93 {
    94     SDL_VideoDevice *device;
    95     SDL_VideoData *data;
    96 
    97     /* Initialize all variables that we clean on shutdown */
    98     device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
    99     if (!device) {
   100         SDL_OutOfMemory();
   101         return NULL;
   102     }
   103 
   104     data = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData));
   105     if (!data) {
   106         SDL_OutOfMemory();
   107         SDL_free(device);
   108         return NULL;
   109     }
   110 
   111     device->driverdata = data;
   112 
   113     /* Set the function pointers */
   114     device->VideoInit = Android_VideoInit;
   115     device->VideoQuit = Android_VideoQuit;
   116     device->PumpEvents = Android_PumpEvents;
   117 
   118     device->GetDisplayDPI = Android_GetDisplayDPI;
   119 
   120     device->CreateSDLWindow = Android_CreateWindow;
   121     device->SetWindowTitle = Android_SetWindowTitle;
   122     device->SetWindowFullscreen = Android_SetWindowFullscreen;
   123     device->DestroyWindow = Android_DestroyWindow;
   124     device->GetWindowWMInfo = Android_GetWindowWMInfo;
   125 
   126     device->free = Android_DeleteDevice;
   127 
   128     /* GL pointers */
   129     device->GL_LoadLibrary = Android_GLES_LoadLibrary;
   130     device->GL_GetProcAddress = Android_GLES_GetProcAddress;
   131     device->GL_UnloadLibrary = Android_GLES_UnloadLibrary;
   132     device->GL_CreateContext = Android_GLES_CreateContext;
   133     device->GL_MakeCurrent = Android_GLES_MakeCurrent;
   134     device->GL_SetSwapInterval = Android_GLES_SetSwapInterval;
   135     device->GL_GetSwapInterval = Android_GLES_GetSwapInterval;
   136     device->GL_SwapWindow = Android_GLES_SwapWindow;
   137     device->GL_DeleteContext = Android_GLES_DeleteContext;
   138 
   139 #if SDL_VIDEO_VULKAN
   140     device->Vulkan_LoadLibrary = Android_Vulkan_LoadLibrary;
   141     device->Vulkan_UnloadLibrary = Android_Vulkan_UnloadLibrary;
   142     device->Vulkan_GetInstanceExtensions = Android_Vulkan_GetInstanceExtensions;
   143     device->Vulkan_CreateSurface = Android_Vulkan_CreateSurface;
   144 #endif
   145 
   146     /* Screensaver */
   147     device->SuspendScreenSaver = Android_SuspendScreenSaver;
   148 
   149     /* Text input */
   150     device->StartTextInput = Android_StartTextInput;
   151     device->StopTextInput = Android_StopTextInput;
   152     device->SetTextInputRect = Android_SetTextInputRect;
   153 
   154     /* Screen keyboard */
   155     device->HasScreenKeyboardSupport = Android_HasScreenKeyboardSupport;
   156     device->IsScreenKeyboardShown = Android_IsScreenKeyboardShown;
   157 
   158     /* Clipboard */
   159     device->SetClipboardText = Android_SetClipboardText;
   160     device->GetClipboardText = Android_GetClipboardText;
   161     device->HasClipboardText = Android_HasClipboardText;
   162 
   163     return device;
   164 }
   165 
   166 VideoBootStrap Android_bootstrap = {
   167     ANDROID_VID_DRIVER_NAME, "SDL Android video driver",
   168     Android_Available, Android_CreateDevice
   169 };
   170 
   171 
   172 int
   173 Android_VideoInit(_THIS)
   174 {
   175     SDL_DisplayMode mode;
   176 
   177     mode.format = Android_ScreenFormat;
   178     mode.w = Android_DeviceWidth;
   179     mode.h = Android_DeviceHeight;
   180     mode.refresh_rate = Android_ScreenRate;
   181     mode.driverdata = NULL;
   182     if (SDL_AddBasicVideoDisplay(&mode) < 0) {
   183         return -1;
   184     }
   185 
   186     SDL_AddDisplayMode(&_this->displays[0], &mode);
   187 
   188     Android_InitKeyboard();
   189 
   190     Android_InitTouch();
   191 
   192     Android_InitMouse();
   193 
   194     /* We're done! */
   195     return 0;
   196 }
   197 
   198 void
   199 Android_VideoQuit(_THIS)
   200 {
   201     Android_QuitMouse();
   202     Android_QuitTouch();
   203 }
   204 
   205 int
   206 Android_GetDisplayDPI(_THIS, SDL_VideoDisplay *display, float *ddpi, float *hdpi, float *vdpi)
   207 {
   208     return Android_JNI_GetDisplayDPI(ddpi, hdpi, vdpi);
   209 }
   210 
   211 void
   212 Android_SetScreenResolution(SDL_Window *window, int surfaceWidth, int surfaceHeight, int deviceWidth, int deviceHeight, Uint32 format, float rate)
   213 {
   214     SDL_VideoDevice *device;
   215     SDL_VideoDisplay *display;
   216     Android_SurfaceWidth = surfaceWidth;
   217     Android_SurfaceHeight = surfaceHeight;
   218     Android_DeviceWidth = deviceWidth;
   219     Android_DeviceHeight = deviceHeight;
   220     Android_ScreenFormat = format;
   221     Android_ScreenRate = (int)rate;
   222 
   223     /*
   224       Update the resolution of the desktop mode, so that the window
   225       can be properly resized. The screen resolution change can for
   226       example happen when the Activity enters or exits immersive mode,
   227       which can happen after VideoInit().
   228     */
   229     device = SDL_GetVideoDevice();
   230     if (device && device->num_displays > 0)
   231     {
   232         display = &device->displays[0];
   233         display->desktop_mode.format = Android_ScreenFormat;
   234         display->desktop_mode.w = Android_DeviceWidth;
   235         display->desktop_mode.h = Android_DeviceHeight;
   236         display->desktop_mode.refresh_rate  = Android_ScreenRate;
   237     }
   238 
   239     if (window) {
   240         /* Force the current mode to match the resize otherwise the SDL_WINDOWEVENT_RESTORED event
   241          * will fall back to the old mode */
   242         display = SDL_GetDisplayForWindow(window);
   243 
   244         display->display_modes[0].format = format;
   245         display->display_modes[0].w = Android_DeviceWidth;
   246         display->display_modes[0].h = Android_DeviceHeight;
   247         display->display_modes[0].refresh_rate = (int)rate;
   248         display->current_mode = display->display_modes[0];
   249 
   250         SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, surfaceWidth, surfaceHeight);
   251     }
   252 }
   253 
   254 #endif /* SDL_VIDEO_DRIVER_ANDROID */
   255 
   256 /* vi: set ts=4 sw=4 expandtab: */