diff options
Diffstat (limited to '3rdparty/SDL2/src/video/emscripten/SDL_emscriptenvideo.c')
-rw-r--r-- | 3rdparty/SDL2/src/video/emscripten/SDL_emscriptenvideo.c | 347 |
1 files changed, 0 insertions, 347 deletions
diff --git a/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenvideo.c b/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenvideo.c deleted file mode 100644 index 847bb4cf84d..00000000000 --- a/3rdparty/SDL2/src/video/emscripten/SDL_emscriptenvideo.c +++ /dev/null @@ -1,347 +0,0 @@ -/* - Simple DirectMedia Layer - Copyright (C) 1997-2016 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_EMSCRIPTEN - -#include "SDL_video.h" -#include "SDL_mouse.h" -#include "SDL_hints.h" -#include "../SDL_sysvideo.h" -#include "../SDL_pixels_c.h" -#include "../SDL_egl_c.h" -#include "../../events/SDL_events_c.h" - -#include "SDL_emscriptenvideo.h" -#include "SDL_emscriptenopengles.h" -#include "SDL_emscriptenframebuffer.h" -#include "SDL_emscriptenevents.h" -#include "SDL_emscriptenmouse.h" - -#define EMSCRIPTENVID_DRIVER_NAME "emscripten" - -/* Initialization/Query functions */ -static int Emscripten_VideoInit(_THIS); -static int Emscripten_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode); -static void Emscripten_VideoQuit(_THIS); - -static int Emscripten_CreateWindow(_THIS, SDL_Window * window); -static void Emscripten_SetWindowSize(_THIS, SDL_Window * window); -static void Emscripten_DestroyWindow(_THIS, SDL_Window * window); -static void Emscripten_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * display, SDL_bool fullscreen); -static void Emscripten_PumpEvents(_THIS); -static void Emscripten_SetWindowTitle(_THIS, SDL_Window * window); - - -/* Emscripten driver bootstrap functions */ - -static int -Emscripten_Available(void) -{ - return (1); -} - -static void -Emscripten_DeleteDevice(SDL_VideoDevice * device) -{ - SDL_free(device); -} - -static SDL_VideoDevice * -Emscripten_CreateDevice(int devindex) -{ - SDL_VideoDevice *device; - - /* Initialize all variables that we clean on shutdown */ - device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); - if (!device) { - SDL_OutOfMemory(); - return (0); - } - - /* Firefox sends blur event which would otherwise prevent full screen - * when the user clicks to allow full screen. - * See https://bugzilla.mozilla.org/show_bug.cgi?id=1144964 - */ - SDL_SetHint(SDL_HINT_VIDEO_MINIMIZE_ON_FOCUS_LOSS, "0"); - - /* Set the function pointers */ - device->VideoInit = Emscripten_VideoInit; - device->VideoQuit = Emscripten_VideoQuit; - device->SetDisplayMode = Emscripten_SetDisplayMode; - - - device->PumpEvents = Emscripten_PumpEvents; - - device->CreateWindow = Emscripten_CreateWindow; - /*device->CreateWindowFrom = Emscripten_CreateWindowFrom;*/ - device->SetWindowTitle = Emscripten_SetWindowTitle; - /*device->SetWindowIcon = Emscripten_SetWindowIcon; - device->SetWindowPosition = Emscripten_SetWindowPosition;*/ - device->SetWindowSize = Emscripten_SetWindowSize; - /*device->ShowWindow = Emscripten_ShowWindow; - device->HideWindow = Emscripten_HideWindow; - device->RaiseWindow = Emscripten_RaiseWindow; - device->MaximizeWindow = Emscripten_MaximizeWindow; - device->MinimizeWindow = Emscripten_MinimizeWindow; - device->RestoreWindow = Emscripten_RestoreWindow; - device->SetWindowGrab = Emscripten_SetWindowGrab;*/ - device->DestroyWindow = Emscripten_DestroyWindow; - device->SetWindowFullscreen = Emscripten_SetWindowFullscreen; - - device->CreateWindowFramebuffer = Emscripten_CreateWindowFramebuffer; - device->UpdateWindowFramebuffer = Emscripten_UpdateWindowFramebuffer; - device->DestroyWindowFramebuffer = Emscripten_DestroyWindowFramebuffer; - - device->GL_LoadLibrary = Emscripten_GLES_LoadLibrary; - device->GL_GetProcAddress = Emscripten_GLES_GetProcAddress; - device->GL_UnloadLibrary = Emscripten_GLES_UnloadLibrary; - device->GL_CreateContext = Emscripten_GLES_CreateContext; - device->GL_MakeCurrent = Emscripten_GLES_MakeCurrent; - device->GL_SetSwapInterval = Emscripten_GLES_SetSwapInterval; - device->GL_GetSwapInterval = Emscripten_GLES_GetSwapInterval; - device->GL_SwapWindow = Emscripten_GLES_SwapWindow; - device->GL_DeleteContext = Emscripten_GLES_DeleteContext; - device->GL_GetDrawableSize = Emscripten_GLES_GetDrawableSize; - - device->free = Emscripten_DeleteDevice; - - return device; -} - -VideoBootStrap Emscripten_bootstrap = { - EMSCRIPTENVID_DRIVER_NAME, "SDL emscripten video driver", - Emscripten_Available, Emscripten_CreateDevice -}; - - -int -Emscripten_VideoInit(_THIS) -{ - SDL_DisplayMode mode; - - /* Use a fake 32-bpp desktop mode */ - mode.format = SDL_PIXELFORMAT_RGB888; - - mode.w = EM_ASM_INT_V({ - return screen.width; - }); - - mode.h = EM_ASM_INT_V({ - return screen.height; - }); - - mode.refresh_rate = 0; - mode.driverdata = NULL; - if (SDL_AddBasicVideoDisplay(&mode) < 0) { - return -1; - } - - SDL_zero(mode); - SDL_AddDisplayMode(&_this->displays[0], &mode); - - Emscripten_InitMouse(); - - /* We're done! */ - return 0; -} - -static int -Emscripten_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode) -{ - /* can't do this */ - return 0; -} - -static void -Emscripten_VideoQuit(_THIS) -{ - Emscripten_FiniMouse(); -} - -static void -Emscripten_PumpEvents(_THIS) -{ - /* do nothing. */ -} - -static int -Emscripten_CreateWindow(_THIS, SDL_Window * window) -{ - SDL_WindowData *wdata; - double scaled_w, scaled_h; - double css_w, css_h; - - /* Allocate window internal data */ - wdata = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData)); - if (wdata == NULL) { - return SDL_OutOfMemory(); - } - - if (window->flags & SDL_WINDOW_ALLOW_HIGHDPI) { - wdata->pixel_ratio = emscripten_get_device_pixel_ratio(); - } else { - wdata->pixel_ratio = 1.0f; - } - - scaled_w = SDL_floor(window->w * wdata->pixel_ratio); - scaled_h = SDL_floor(window->h * wdata->pixel_ratio); - - emscripten_set_canvas_size(scaled_w, scaled_h); - - emscripten_get_element_css_size(NULL, &css_w, &css_h); - - wdata->external_size = SDL_floor(css_w) != scaled_w || SDL_floor(css_h) != scaled_h; - - if ((window->flags & SDL_WINDOW_RESIZABLE) && wdata->external_size) { - /* external css has resized us */ - scaled_w = css_w * wdata->pixel_ratio; - scaled_h = css_h * wdata->pixel_ratio; - - emscripten_set_canvas_size(scaled_w, scaled_h); - SDL_SendWindowEvent(window, SDL_WINDOWEVENT_RESIZED, css_w, css_h); - } - - /* if the size is not being controlled by css, we need to scale down for hidpi */ - if (!wdata->external_size) { - if (wdata->pixel_ratio != 1.0f) { - /*scale canvas down*/ - emscripten_set_element_css_size(NULL, window->w, window->h); - } - } - - if (window->flags & SDL_WINDOW_OPENGL) { - if (!_this->egl_data) { - if (SDL_GL_LoadLibrary(NULL) < 0) { - return -1; - } - } - wdata->egl_surface = SDL_EGL_CreateSurface(_this, 0); - - if (wdata->egl_surface == EGL_NO_SURFACE) { - return SDL_SetError("Could not create GLES window surface"); - } - } - - wdata->window = window; - - /* Setup driver data for this window */ - window->driverdata = wdata; - - /* One window, it always has focus */ - SDL_SetMouseFocus(window); - SDL_SetKeyboardFocus(window); - - Emscripten_RegisterEventHandlers(wdata); - - /* Window has been successfully created */ - return 0; -} - -static void Emscripten_SetWindowSize(_THIS, SDL_Window * window) -{ - SDL_WindowData *data; - - if (window->driverdata) { - data = (SDL_WindowData *) window->driverdata; - /* update pixel ratio */ - data->pixel_ratio = emscripten_get_device_pixel_ratio(); - emscripten_set_canvas_size(window->w * data->pixel_ratio, window->h * data->pixel_ratio); - - /*scale canvas down*/ - if (!data->external_size && data->pixel_ratio != 1.0f) { - emscripten_set_element_css_size(NULL, window->w, window->h); - } - } -} - -static void -Emscripten_DestroyWindow(_THIS, SDL_Window * window) -{ - SDL_WindowData *data; - - if(window->driverdata) { - data = (SDL_WindowData *) window->driverdata; - - Emscripten_UnregisterEventHandlers(data); - if (data->egl_surface != EGL_NO_SURFACE) { - SDL_EGL_DestroySurface(_this, data->egl_surface); - data->egl_surface = EGL_NO_SURFACE; - } - SDL_free(window->driverdata); - window->driverdata = NULL; - } -} - -static void -Emscripten_SetWindowFullscreen(_THIS, SDL_Window * window, SDL_VideoDisplay * display, SDL_bool fullscreen) -{ - SDL_WindowData *data; - if(window->driverdata) { - data = (SDL_WindowData *) window->driverdata; - - if(fullscreen) { - EmscriptenFullscreenStrategy strategy; - SDL_bool is_desktop_fullscreen = (window->flags & SDL_WINDOW_FULLSCREEN_DESKTOP) == SDL_WINDOW_FULLSCREEN_DESKTOP; - int res; - - strategy.scaleMode = is_desktop_fullscreen ? EMSCRIPTEN_FULLSCREEN_SCALE_STRETCH : EMSCRIPTEN_FULLSCREEN_SCALE_ASPECT; - - if(!is_desktop_fullscreen) { - strategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_NONE; - } else if(window->flags & SDL_WINDOW_ALLOW_HIGHDPI) { - strategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_HIDEF; - } else { - strategy.canvasResolutionScaleMode = EMSCRIPTEN_FULLSCREEN_CANVAS_SCALE_STDDEF; - } - - strategy.filteringMode = EMSCRIPTEN_FULLSCREEN_FILTERING_DEFAULT; - - strategy.canvasResizedCallback = Emscripten_HandleCanvasResize; - strategy.canvasResizedCallbackUserData = data; - - data->requested_fullscreen_mode = window->flags & (SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN); - data->fullscreen_resize = is_desktop_fullscreen; - - res = emscripten_request_fullscreen_strategy(NULL, 1, &strategy); - if(res != EMSCRIPTEN_RESULT_SUCCESS && res != EMSCRIPTEN_RESULT_DEFERRED) { - /* unset flags, fullscreen failed */ - window->flags &= ~(SDL_WINDOW_FULLSCREEN_DESKTOP | SDL_WINDOW_FULLSCREEN); - } - } - else - emscripten_exit_fullscreen(); - } -} - -static void -Emscripten_SetWindowTitle(_THIS, SDL_Window * window) { - EM_ASM_INT({ - if (typeof Module['setWindowTitle'] !== 'undefined') { - Module['setWindowTitle'](Module['Pointer_stringify']($0)); - } - return 0; - }, window->title); -} - -#endif /* SDL_VIDEO_DRIVER_EMSCRIPTEN */ - -/* vi: set ts=4 sw=4 expandtab: */ |