dludwig@8327: /*
dludwig@8327:   Simple DirectMedia Layer
dludwig@8327:   Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
dludwig@8327: 
dludwig@8327:   This software is provided 'as-is', without any express or implied
dludwig@8327:   warranty.  In no event will the authors be held liable for any damages
dludwig@8327:   arising from the use of this software.
dludwig@8327: 
dludwig@8327:   Permission is granted to anyone to use this software for any purpose,
dludwig@8327:   including commercial applications, and to alter it and redistribute it
dludwig@8327:   freely, subject to the following restrictions:
dludwig@8327: 
dludwig@8327:   1. The origin of this software must not be misrepresented; you must not
dludwig@8327:      claim that you wrote the original software. If you use this software
dludwig@8327:      in a product, an acknowledgment in the product documentation would be
dludwig@8327:      appreciated but is not required.
dludwig@8327:   2. Altered source versions must be plainly marked as such, and must not be
dludwig@8327:      misrepresented as being the original software.
dludwig@8327:   3. This notice may not be removed or altered from any source distribution.
dludwig@8327: */
dludwig@8327: #include "SDL_config.h"
dludwig@8327: 
dludwig@8327: #if SDL_VIDEO_DRIVER_WINRT
dludwig@8327: 
dludwig@8327: /* WinRT SDL video driver implementation
dludwig@8327: 
dludwig@8327:    Initial work on this was done by David Ludwig (dludwig@pobox.com), and
dludwig@8327:    was based off of SDL's "dummy" video driver.
dludwig@8327:  */
dludwig@8327: 
dludwig@8329: extern "C" {
dludwig@8327: #include "SDL_video.h"
dludwig@8327: #include "SDL_mouse.h"
dludwig@8327: #include "../SDL_sysvideo.h"
dludwig@8327: #include "../SDL_pixels_c.h"
dludwig@8327: #include "../../events/SDL_events_c.h"
dludwig@8400: #include "../../render/SDL_sysrender.h"
dludwig@8411: #include "SDL_syswm.h"
dludwig@8329: }
dludwig@8327: 
dludwig@8329: #include "SDL_WinRTApp.h"
dludwig@8327: #include "SDL_winrtvideo.h"
dludwig@8327: #include "SDL_winrtevents_c.h"
dludwig@8327: #include "SDL_winrtframebuffer_c.h"
dludwig@8374: #include "SDL_winrtmouse.h"
dludwig@8327: 
dludwig@8333: /* On Windows, windows.h defines CreateWindow */
dludwig@8333: #ifdef CreateWindow
dludwig@8333: #undef CreateWindow
dludwig@8333: #endif
dludwig@8333: 
dludwig@8332: extern SDL_WinRTApp ^ SDL_WinRTGlobalApp;
dludwig@8332: 
dludwig@8368: #define WINRTVID_DRIVER_NAME "winrt"
dludwig@8327: 
dludwig@8327: /* Initialization/Query functions */
dludwig@8327: static int WINRT_VideoInit(_THIS);
dludwig@8374: static int WINRT_InitModes(_THIS);
dludwig@8327: static int WINRT_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode);
dludwig@8327: static void WINRT_VideoQuit(_THIS);
dludwig@8327: 
dludwig@8333: /* Window functions */
dludwig@8333: static int WINRT_CreateWindow(_THIS, SDL_Window * window);
dludwig@8333: static void WINRT_DestroyWindow(_THIS, SDL_Window * window);
dludwig@8411: static SDL_bool WINRT_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info);
dludwig@8333: 
dludwig@8327: /* WinRT driver bootstrap functions */
dludwig@8327: 
dludwig@8327: static int
dludwig@8327: WINRT_Available(void)
dludwig@8327: {
dludwig@8328:     return (1);
dludwig@8327: }
dludwig@8327: 
dludwig@8327: static void
dludwig@8327: WINRT_DeleteDevice(SDL_VideoDevice * device)
dludwig@8327: {
dludwig@8327:     SDL_free(device);
dludwig@8327: }
dludwig@8327: 
dludwig@8327: static SDL_VideoDevice *
dludwig@8327: WINRT_CreateDevice(int devindex)
dludwig@8327: {
dludwig@8327:     SDL_VideoDevice *device;
dludwig@8327: 
dludwig@8327:     /* Initialize all variables that we clean on shutdown */
dludwig@8327:     device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice));
dludwig@8327:     if (!device) {
dludwig@8327:         SDL_OutOfMemory();
dludwig@8327:         if (device) {
dludwig@8327:             SDL_free(device);
dludwig@8327:         }
dludwig@8327:         return (0);
dludwig@8327:     }
dludwig@8327: 
dludwig@8327:     /* Set the function pointers */
dludwig@8327:     device->VideoInit = WINRT_VideoInit;
dludwig@8327:     device->VideoQuit = WINRT_VideoQuit;
dludwig@8333:     device->CreateWindow = WINRT_CreateWindow;
dludwig@8333:     device->DestroyWindow = WINRT_DestroyWindow;
dludwig@8327:     device->SetDisplayMode = WINRT_SetDisplayMode;
dludwig@8327:     device->PumpEvents = WINRT_PumpEvents;
dludwig@8327:     device->CreateWindowFramebuffer = SDL_WINRT_CreateWindowFramebuffer;
dludwig@8327:     device->UpdateWindowFramebuffer = SDL_WINRT_UpdateWindowFramebuffer;
dludwig@8327:     device->DestroyWindowFramebuffer = SDL_WINRT_DestroyWindowFramebuffer;
dludwig@8411:     device->GetWindowWMInfo = WINRT_GetWindowWMInfo;
dludwig@8327: 
dludwig@8327:     device->free = WINRT_DeleteDevice;
dludwig@8327: 
dludwig@8327:     return device;
dludwig@8327: }
dludwig@8327: 
dludwig@8327: VideoBootStrap WINRT_bootstrap = {
dludwig@8327:     WINRTVID_DRIVER_NAME, "SDL Windows RT video driver",
dludwig@8327:     WINRT_Available, WINRT_CreateDevice
dludwig@8327: };
dludwig@8327: 
dludwig@8327: int
dludwig@8327: WINRT_VideoInit(_THIS)
dludwig@8327: {
dludwig@8374:     if (WINRT_InitModes(_this) < 0) {
dludwig@8374:         return -1;
dludwig@8374:     }
dludwig@8374: 
dludwig@8374:     WINRT_InitMouse(_this);
dludwig@8374: 
dludwig@8374:     return 0;
dludwig@8374: }
dludwig@8374: 
dludwig@8374: static int
dludwig@8374: WINRT_InitModes(_THIS)
dludwig@8374: {
dludwig@8329:     SDL_DisplayMode mode = SDL_WinRTGlobalApp->GetMainDisplayMode();
dludwig@8329:     if (SDL_AddBasicVideoDisplay(&mode) < 0) {
dludwig@8329:         return -1;
dludwig@8374:     }
dludwig@8374: 
dludwig@8374:     SDL_AddDisplayMode(&_this->displays[0], &mode);
dludwig@8327:     return 0;
dludwig@8327: }
dludwig@8327: 
dludwig@8327: static int
dludwig@8327: WINRT_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode)
dludwig@8327: {
dludwig@8327:     return 0;
dludwig@8327: }
dludwig@8327: 
dludwig@8327: void
dludwig@8327: WINRT_VideoQuit(_THIS)
dludwig@8327: {
dludwig@8374:     WINRT_QuitMouse(_this);
dludwig@8327: }
dludwig@8327: 
dludwig@8333: int
dludwig@8333: WINRT_CreateWindow(_THIS, SDL_Window * window)
dludwig@8333: {
dludwig@8334:     // Make sure that only one window gets created, at least until multimonitor
dludwig@8334:     // support is added.
dludwig@8334:     if (SDL_WinRTGlobalApp->HasSDLWindowData())
dludwig@8334:     {
dludwig@8334:         SDL_SetError("WinRT only supports one window");
dludwig@8334:         return -1;
dludwig@8334:     }
dludwig@8333: 
dludwig@8411:     SDL_WindowData *data = new SDL_WindowData;
dludwig@8333:     if (!data) {
dludwig@8333:         SDL_OutOfMemory();
dludwig@8333:         return -1;
dludwig@8333:     }
dludwig@8333:     data->sdlWindow = window;
dludwig@8411:     data->coreWindow = new CoreWindow^(CoreWindow::GetForCurrentThread());
dludwig@8333: 
dludwig@8367:     /* Make sure the window is considered to be positioned at {0,0},
dludwig@8367:        and is considered fullscreen, shown, and the like.
dludwig@8367:     */
dludwig@8333:     window->x = 0;
dludwig@8333:     window->y = 0;
dludwig@8367:     window->flags =
dludwig@8367:         SDL_WINDOW_FULLSCREEN |
dludwig@8367:         SDL_WINDOW_SHOWN |
dludwig@8367:         SDL_WINDOW_BORDERLESS |
dludwig@8367:         SDL_WINDOW_MAXIMIZED |
dludwig@8367:         SDL_WINDOW_INPUT_GRABBED;
dludwig@8333: 
dludwig@8367:     /* HACK from DLudwig: The following line of code prevents
dludwig@8367:        SDL_CreateWindow and SDL_UpdateFullscreenMode from trying to resize
dludwig@8367:        the window after the call to WINRT_CreateWindow returns.
dludwig@8367:        
dludwig@8367:        This hack should allow a window to be created in virtually any size,
dludwig@8367:        and more importantly, it allows a window's framebuffer, as created and
dludwig@8367:        retrieved via SDL_GetWindowSurface, to be in any size.  This can be
dludwig@8367:        utilized by apps centered around software rendering, such as ports
dludwig@8367:        of older apps.  The app can have SDL create a framebuffer in any size
dludwig@8367:        it chooses.  SDL will scale the framebuffer to the native
dludwig@8367:        screen size on the GPU (via SDL_UpdateWindowSurface).
dludwig@8367:     */
dludwig@8367:     _this->displays[0].fullscreen_window = window;
dludwig@8367: 
dludwig@8367:     /* Further prevent any display resizing, and make sure SDL_GetWindowDisplayMode
dludwig@8367:        can report the correct size of windows, by creating a new display
dludwig@8367:        mode in the requested size.  To note, if the window is being created in
dludwig@8367:        the device's native screen size, SDL_AddDisplayMode will do nothing.
dludwig@8367:     */
dludwig@8367:     window->fullscreen_mode = SDL_WinRTGlobalApp->GetMainDisplayMode();
dludwig@8367:     window->fullscreen_mode.w = window->w;
dludwig@8367:     window->fullscreen_mode.h = window->h;
dludwig@8367:     SDL_AddDisplayMode(&_this->displays[0], &window->fullscreen_mode);
dludwig@8367: 
dludwig@8367:     /* TODO: Consider removing custom display modes in WINRT_DestroyWindow. */
dludwig@8367:  
dludwig@8367:     /* Make sure the WinRT app's IFramworkView can post events on
dludwig@8367:        behalf of SDL:
dludwig@8367:     */
dludwig@8333:     SDL_WinRTGlobalApp->SetSDLWindowData(data);
dludwig@8333: 
dludwig@8400:     /* For now, create a Direct3D 11 renderer up-front.  Eventually, this
dludwig@8400:        won't be done in WINRT_CreateWindow, although it may get done in
dludwig@8400:        SDL_WINRT_CreateWindowFramebuffer.
dludwig@8400:     */
dludwig@8400: 
dludwig@8400:     // Link SDL_winrtrenderer to the SDL_Renderer temporarily,
dludwig@8400:     // for refactoring purposes.  Initialize the SDL_Renderer
dludwig@8400:     // first in order to give it the opportunity to create key
dludwig@8400:     // resources first.
dludwig@8401:     //
dludwig@8401:     // TODO, WinRT: either make WINRT_CreateWindow not call SDL_CreateRenderer, or have it do error checking if it does call it
dludwig@8411: 
dludwig@8411:     // HACK: make sure the SDL window references SDL_WindowData data now, in
dludwig@8411:     // order to allow the SDL_Renderer to be created in WINRT_CreateWindow
dludwig@8411:     window->driverdata = data;
dludwig@8411: 
dludwig@8400:     SDL_Renderer * renderer = SDL_CreateRenderer(window, -1, SDL_RENDERER_ACCELERATED | SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_TARGETTEXTURE);
dludwig@8401:     SDL_WinRTGlobalApp->m_renderer->m_sdlRenderer = renderer;
dludwig@8400:     SDL_WinRTGlobalApp->m_renderer->m_sdlRendererData = (D3D11_RenderData *) renderer->driverdata;
dludwig@8400:     SDL_WinRTGlobalApp->m_renderer->Initialize(CoreWindow::GetForCurrentThread());
dludwig@8400: 
dludwig@8367:     /* All done! */
dludwig@8333:     return 0;
dludwig@8333: }
dludwig@8333: 
dludwig@8333: void
dludwig@8333: WINRT_DestroyWindow(_THIS, SDL_Window * window)
dludwig@8333: {
dludwig@8411:     SDL_WindowData * data = (SDL_WindowData *) window->driverdata;
dludwig@8411: 
dludwig@8411:     if (data) {
dludwig@8411:         // Delete the reference to the WinRT CoreWindow:
dludwig@8411:         CoreWindow ^* windowPointer = ((SDL_WindowData *) window->driverdata)->coreWindow;
dludwig@8411:         if (windowPointer) {
dludwig@8411:             *windowPointer = nullptr;   // Clear the C++/CX reference to the CoreWindow
dludwig@8411:             delete windowPointer;       // Delete the C++/CX reference itself
dludwig@8411:         }
dludwig@8411: 
dludwig@8411:         // Delete the internal window data:
dludwig@8411:         delete data;
dludwig@8411:         data = NULL;
dludwig@8411:     }
dludwig@8411: 
dludwig@8335:     if (SDL_WinRTGlobalApp->HasSDLWindowData() &&
dludwig@8335:         SDL_WinRTGlobalApp->GetSDLWindowData()->sdlWindow == window)
dludwig@8334:     {
dludwig@8334:         SDL_WinRTGlobalApp->SetSDLWindowData(NULL);
dludwig@8334:     }
dludwig@8333: }
dludwig@8333: 
dludwig@8411: SDL_bool
dludwig@8411: WINRT_GetWindowWMInfo(_THIS, SDL_Window * window, SDL_SysWMinfo * info)
dludwig@8411: {
dludwig@8411:     SDL_WindowData * data = (SDL_WindowData *) window->driverdata;
dludwig@8411:     CoreWindow ^* windowPointer = data->coreWindow;
dludwig@8411: 
dludwig@8411:     if (info->version.major <= SDL_MAJOR_VERSION) {
dludwig@8411:         info->subsystem = SDL_SYSWM_WINDOWSRT;
dludwig@8411:         info->info.winrt.window = windowPointer;
dludwig@8411:         return SDL_TRUE;
dludwig@8411:     } else {
dludwig@8411:         SDL_SetError("Application not compiled with SDL %d.%d\n",
dludwig@8411:                      SDL_MAJOR_VERSION, SDL_MINOR_VERSION);
dludwig@8411:         return SDL_FALSE;
dludwig@8411:     }
dludwig@8411:     return SDL_FALSE;
dludwig@8411: }
dludwig@8333: 
dludwig@8327: #endif /* SDL_VIDEO_DRIVER_WINRT */
dludwig@8327: 
dludwig@8327: /* vi: set ts=4 sw=4 expandtab: */