src/video/nacl/SDL_naclvideo.c
author Sam Lantinga <slouken@libsdl.org>
Sun, 01 Jan 2017 18:33:28 -0800
changeset 10737 3406a0f8b041
parent 9998 f67cf37e9cd4
child 11189 8a23ac7134d2
permissions -rw-r--r--
Updated copyright for 2017
     1 /*
     2   Simple DirectMedia Layer
     3   Copyright (C) 1997-2017 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_NACL
    24 
    25 #include "ppapi/c/pp_errors.h"
    26 #include "ppapi/c/pp_instance.h"
    27 #include "ppapi_simple/ps.h"
    28 #include "ppapi_simple/ps_interface.h"
    29 #include "ppapi_simple/ps_event.h"
    30 #include "nacl_io/nacl_io.h"
    31 
    32 #include "SDL_naclvideo.h"
    33 #include "SDL_naclwindow.h"
    34 #include "SDL_naclevents_c.h"
    35 #include "SDL_naclopengles.h"   
    36 #include "SDL_video.h"
    37 #include "../SDL_sysvideo.h"
    38 #include "../../events/SDL_events_c.h"
    39 
    40 #define NACLVID_DRIVER_NAME "nacl"
    41 
    42 /* Static init required because NACL_SetScreenResolution 
    43  * may appear even before SDL starts and we want to remember
    44  * the window width and height
    45  */
    46 static SDL_VideoData nacl = {0};
    47 
    48 void
    49 NACL_SetScreenResolution(int width, int height, Uint32 format)
    50 {
    51     PP_Resource context;
    52     
    53     nacl.w = width;
    54     nacl.h = height;   
    55     nacl.format = format;
    56     
    57     if (nacl.window) {
    58         nacl.window->w = width;
    59         nacl.window->h = height;
    60         SDL_SendWindowEvent(nacl.window, SDL_WINDOWEVENT_RESIZED, width, height);
    61     }
    62     
    63     /* FIXME: Check threading issues...otherwise use a hardcoded _this->context across all threads */
    64     context = (PP_Resource) SDL_GL_GetCurrentContext();
    65     if (context) {
    66         PSInterfaceGraphics3D()->ResizeBuffers(context, width, height);
    67     }
    68 
    69 }
    70 
    71 
    72 
    73 /* Initialization/Query functions */
    74 static int NACL_VideoInit(_THIS);
    75 static void NACL_VideoQuit(_THIS);
    76 
    77 static int NACL_Available(void) {
    78     return PSGetInstanceId() != 0;
    79 }
    80 
    81 static void NACL_DeleteDevice(SDL_VideoDevice *device) {
    82     SDL_VideoData *driverdata = (SDL_VideoData*) device->driverdata;
    83     driverdata->ppb_core->ReleaseResource((PP_Resource) driverdata->ppb_message_loop);
    84     SDL_free(device->driverdata);
    85     SDL_free(device);
    86 }
    87 
    88 static int
    89 NACL_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
    90 {
    91     return 0;
    92 }
    93 
    94 static SDL_VideoDevice *NACL_CreateDevice(int devindex) {
    95     SDL_VideoDevice *device;
    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     device->driverdata = &nacl;
   104   
   105     /* Set the function pointers */
   106     device->VideoInit = NACL_VideoInit;
   107     device->VideoQuit = NACL_VideoQuit;
   108     device->PumpEvents = NACL_PumpEvents;
   109     
   110     device->CreateWindow = NACL_CreateWindow;
   111     device->SetWindowTitle = NACL_SetWindowTitle;
   112     device->DestroyWindow = NACL_DestroyWindow;
   113     
   114     device->SetDisplayMode = NACL_SetDisplayMode;
   115     
   116     device->free = NACL_DeleteDevice;
   117     
   118     /* GL pointers */
   119     device->GL_LoadLibrary = NACL_GLES_LoadLibrary;
   120     device->GL_GetProcAddress = NACL_GLES_GetProcAddress;
   121     device->GL_UnloadLibrary = NACL_GLES_UnloadLibrary;
   122     device->GL_CreateContext = NACL_GLES_CreateContext;
   123     device->GL_MakeCurrent = NACL_GLES_MakeCurrent;
   124     device->GL_SetSwapInterval = NACL_GLES_SetSwapInterval;
   125     device->GL_GetSwapInterval = NACL_GLES_GetSwapInterval;
   126     device->GL_SwapWindow = NACL_GLES_SwapWindow;
   127     device->GL_DeleteContext = NACL_GLES_DeleteContext;
   128     
   129     
   130     return device;
   131 }
   132 
   133 VideoBootStrap NACL_bootstrap = {
   134     NACLVID_DRIVER_NAME, "SDL Native Client Video Driver",
   135     NACL_Available, NACL_CreateDevice
   136 };
   137 
   138 int NACL_VideoInit(_THIS) {
   139     SDL_VideoData *driverdata = (SDL_VideoData *) _this->driverdata;
   140     SDL_DisplayMode mode;
   141 
   142     SDL_zero(mode);
   143     mode.format = driverdata->format;
   144     mode.w = driverdata->w;
   145     mode.h = driverdata->h;
   146     mode.refresh_rate = 0;
   147     mode.driverdata = NULL;
   148     if (SDL_AddBasicVideoDisplay(&mode) < 0) {
   149         return -1;
   150     }
   151 
   152     SDL_AddDisplayMode(&_this->displays[0], &mode);
   153     
   154     PSInterfaceInit();
   155     driverdata->instance = PSGetInstanceId();
   156     driverdata->ppb_graphics = PSInterfaceGraphics3D();
   157     driverdata->ppb_message_loop = PSInterfaceMessageLoop();
   158     driverdata->ppb_core = PSInterfaceCore();
   159     driverdata->ppb_fullscreen = PSInterfaceFullscreen();
   160     driverdata->ppb_instance = PSInterfaceInstance();
   161     driverdata->ppb_image_data = PSInterfaceImageData();
   162     driverdata->ppb_view = PSInterfaceView();
   163     driverdata->ppb_var = PSInterfaceVar();
   164     driverdata->ppb_input_event = (PPB_InputEvent*) PSGetInterface(PPB_INPUT_EVENT_INTERFACE);
   165     driverdata->ppb_keyboard_input_event = (PPB_KeyboardInputEvent*) PSGetInterface(PPB_KEYBOARD_INPUT_EVENT_INTERFACE);
   166     driverdata->ppb_mouse_input_event = (PPB_MouseInputEvent*) PSGetInterface(PPB_MOUSE_INPUT_EVENT_INTERFACE);
   167     driverdata->ppb_wheel_input_event = (PPB_WheelInputEvent*) PSGetInterface(PPB_WHEEL_INPUT_EVENT_INTERFACE);
   168     driverdata->ppb_touch_input_event = (PPB_TouchInputEvent*) PSGetInterface(PPB_TOUCH_INPUT_EVENT_INTERFACE);
   169     
   170     
   171     driverdata->message_loop = driverdata->ppb_message_loop->Create(driverdata->instance);
   172     
   173     PSEventSetFilter(PSE_ALL);
   174     
   175     /* We're done! */
   176     return 0;
   177 }
   178 
   179 void NACL_VideoQuit(_THIS) {
   180 }
   181 
   182 #endif /* SDL_VIDEO_DRIVER_NACL */
   183 /* vi: set ts=4 sw=4 expandtab: */