| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2017 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_RPI |
| |
| /* References |
| * http://elinux.org/RPi_VideoCore_APIs |
| * https://github.com/raspberrypi/firmware/blob/master/opt/vc/src/hello_pi/hello_triangle/triangle.c |
| * http://cgit.freedesktop.org/wayland/weston/tree/src/rpi-renderer.c |
| * http://cgit.freedesktop.org/wayland/weston/tree/src/compositor-rpi.c |
| */ |
| |
| /* SDL internals */ |
| #include "../SDL_sysvideo.h" |
| #include "SDL_version.h" |
| #include "SDL_syswm.h" |
| #include "SDL_loadso.h" |
| #include "SDL_events.h" |
| #include "../../events/SDL_mouse_c.h" |
| #include "../../events/SDL_keyboard_c.h" |
| #include "SDL_hints.h" |
| |
| #ifdef SDL_INPUT_LINUXEV |
| #include "../../core/linux/SDL_evdev.h" |
| #endif |
| |
| /* RPI declarations */ |
| #include "SDL_rpivideo.h" |
| #include "SDL_rpievents_c.h" |
| #include "SDL_rpiopengles.h" |
| #include "SDL_rpimouse.h" |
| |
| static int |
| RPI_Available(void) |
| { |
| return 1; |
| } |
| |
| static void |
| RPI_Destroy(SDL_VideoDevice * device) |
| { |
| SDL_free(device->driverdata); |
| SDL_free(device); |
| } |
| |
| static SDL_VideoDevice * |
| RPI_Create() |
| { |
| SDL_VideoDevice *device; |
| SDL_VideoData *phdata; |
| |
| /* Initialize SDL_VideoDevice structure */ |
| device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); |
| if (device == NULL) { |
| SDL_OutOfMemory(); |
| return NULL; |
| } |
| |
| /* Initialize internal data */ |
| phdata = (SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData)); |
| if (phdata == NULL) { |
| SDL_OutOfMemory(); |
| SDL_free(device); |
| return NULL; |
| } |
| |
| device->driverdata = phdata; |
| |
| /* Setup amount of available displays */ |
| device->num_displays = 0; |
| |
| /* Set device free function */ |
| device->free = RPI_Destroy; |
| |
| /* Setup all functions which we can handle */ |
| device->VideoInit = RPI_VideoInit; |
| device->VideoQuit = RPI_VideoQuit; |
| device->GetDisplayModes = RPI_GetDisplayModes; |
| device->SetDisplayMode = RPI_SetDisplayMode; |
| device->CreateWindow = RPI_CreateWindow; |
| device->CreateWindowFrom = RPI_CreateWindowFrom; |
| device->SetWindowTitle = RPI_SetWindowTitle; |
| device->SetWindowIcon = RPI_SetWindowIcon; |
| device->SetWindowPosition = RPI_SetWindowPosition; |
| device->SetWindowSize = RPI_SetWindowSize; |
| device->ShowWindow = RPI_ShowWindow; |
| device->HideWindow = RPI_HideWindow; |
| device->RaiseWindow = RPI_RaiseWindow; |
| device->MaximizeWindow = RPI_MaximizeWindow; |
| device->MinimizeWindow = RPI_MinimizeWindow; |
| device->RestoreWindow = RPI_RestoreWindow; |
| device->SetWindowGrab = RPI_SetWindowGrab; |
| device->DestroyWindow = RPI_DestroyWindow; |
| device->GetWindowWMInfo = RPI_GetWindowWMInfo; |
| device->GL_LoadLibrary = RPI_GLES_LoadLibrary; |
| device->GL_GetProcAddress = RPI_GLES_GetProcAddress; |
| device->GL_UnloadLibrary = RPI_GLES_UnloadLibrary; |
| device->GL_CreateContext = RPI_GLES_CreateContext; |
| device->GL_MakeCurrent = RPI_GLES_MakeCurrent; |
| device->GL_SetSwapInterval = RPI_GLES_SetSwapInterval; |
| device->GL_GetSwapInterval = RPI_GLES_GetSwapInterval; |
| device->GL_SwapWindow = RPI_GLES_SwapWindow; |
| device->GL_DeleteContext = RPI_GLES_DeleteContext; |
| |
| device->PumpEvents = RPI_PumpEvents; |
| |
| return device; |
| } |
| |
| VideoBootStrap RPI_bootstrap = { |
| "RPI", |
| "RPI Video Driver", |
| RPI_Available, |
| RPI_Create |
| }; |
| |
| /*****************************************************************************/ |
| /* SDL Video and Display initialization/handling functions */ |
| /*****************************************************************************/ |
| int |
| RPI_VideoInit(_THIS) |
| { |
| SDL_VideoDisplay display; |
| SDL_DisplayMode current_mode; |
| SDL_DisplayData *data; |
| uint32_t w,h; |
| |
| /* Initialize BCM Host */ |
| bcm_host_init(); |
| |
| SDL_zero(current_mode); |
| |
| if (graphics_get_display_size( 0, &w, &h) < 0) { |
| return -1; |
| } |
| |
| current_mode.w = w; |
| current_mode.h = h; |
| /* FIXME: Is there a way to tell the actual refresh rate? */ |
| current_mode.refresh_rate = 60; |
| /* 32 bpp for default */ |
| current_mode.format = SDL_PIXELFORMAT_ABGR8888; |
| |
| current_mode.driverdata = NULL; |
| |
| SDL_zero(display); |
| display.desktop_mode = current_mode; |
| display.current_mode = current_mode; |
| |
| /* Allocate display internal data */ |
| data = (SDL_DisplayData *) SDL_calloc(1, sizeof(SDL_DisplayData)); |
| if (data == NULL) { |
| return SDL_OutOfMemory(); |
| } |
| |
| data->dispman_display = vc_dispmanx_display_open( 0 /* LCD */); |
| |
| display.driverdata = data; |
| |
| SDL_AddVideoDisplay(&display); |
| |
| #ifdef SDL_INPUT_LINUXEV |
| if (SDL_EVDEV_Init() < 0) { |
| return -1; |
| } |
| #endif |
| |
| RPI_InitMouse(_this); |
| |
| return 1; |
| } |
| |
| void |
| RPI_VideoQuit(_THIS) |
| { |
| #ifdef SDL_INPUT_LINUXEV |
| SDL_EVDEV_Quit(); |
| #endif |
| } |
| |
| void |
| RPI_GetDisplayModes(_THIS, SDL_VideoDisplay * display) |
| { |
| /* Only one display mode available, the current one */ |
| SDL_AddDisplayMode(display, &display->current_mode); |
| } |
| |
| int |
| RPI_SetDisplayMode(_THIS, SDL_VideoDisplay * display, SDL_DisplayMode * mode) |
| { |
| return 0; |
| } |
| |
| int |
| RPI_CreateWindow(_THIS, SDL_Window * window) |
| { |
| SDL_WindowData *wdata; |
| SDL_VideoDisplay *display; |
| SDL_DisplayData *displaydata; |
| VC_RECT_T dst_rect; |
| VC_RECT_T src_rect; |
| VC_DISPMANX_ALPHA_T dispman_alpha; |
| DISPMANX_UPDATE_HANDLE_T dispman_update; |
| uint32_t layer = SDL_RPI_VIDEOLAYER; |
| const char *env; |
| |
| /* Disable alpha, otherwise the app looks composed with whatever dispman is showing (X11, console,etc) */ |
| dispman_alpha.flags = DISPMANX_FLAGS_ALPHA_FIXED_ALL_PIXELS; |
| dispman_alpha.opacity = 0xFF; |
| dispman_alpha.mask = 0; |
| |
| /* Allocate window internal data */ |
| wdata = (SDL_WindowData *) SDL_calloc(1, sizeof(SDL_WindowData)); |
| if (wdata == NULL) { |
| return SDL_OutOfMemory(); |
| } |
| display = SDL_GetDisplayForWindow(window); |
| displaydata = (SDL_DisplayData *) display->driverdata; |
| |
| /* Windows have one size for now */ |
| window->w = display->desktop_mode.w; |
| window->h = display->desktop_mode.h; |
| |
| /* OpenGL ES is the law here, buddy */ |
| window->flags |= SDL_WINDOW_OPENGL; |
| |
| /* Create a dispman element and associate a window to it */ |
| dst_rect.x = 0; |
| dst_rect.y = 0; |
| dst_rect.width = window->w; |
| dst_rect.height = window->h; |
| |
| src_rect.x = 0; |
| src_rect.y = 0; |
| src_rect.width = window->w << 16; |
| src_rect.height = window->h << 16; |
| |
| env = SDL_GetHint(SDL_HINT_RPI_VIDEO_LAYER); |
| if (env) { |
| layer = SDL_atoi(env); |
| } |
| |
| dispman_update = vc_dispmanx_update_start( 0 ); |
| wdata->dispman_window.element = vc_dispmanx_element_add (dispman_update, |
| displaydata->dispman_display, |
| layer /* layer */, |
| &dst_rect, |
| 0 /*src*/, |
| &src_rect, |
| DISPMANX_PROTECTION_NONE, |
| &dispman_alpha /*alpha*/, |
| 0 /*clamp*/, |
| 0 /*transform*/); |
| wdata->dispman_window.width = window->w; |
| wdata->dispman_window.height = window->h; |
| vc_dispmanx_update_submit_sync(dispman_update); |
| |
| if (!_this->egl_data) { |
| if (SDL_GL_LoadLibrary(NULL) < 0) { |
| return -1; |
| } |
| } |
| wdata->egl_surface = SDL_EGL_CreateSurface(_this, (NativeWindowType) &wdata->dispman_window); |
| |
| if (wdata->egl_surface == EGL_NO_SURFACE) { |
| return SDL_SetError("Could not create GLES window surface"); |
| } |
| |
| /* Setup driver data for this window */ |
| window->driverdata = wdata; |
| |
| /* One window, it always has focus */ |
| SDL_SetMouseFocus(window); |
| SDL_SetKeyboardFocus(window); |
| |
| /* Window has been successfully created */ |
| return 0; |
| } |
| |
| void |
| RPI_DestroyWindow(_THIS, SDL_Window * window) |
| { |
| SDL_WindowData *data = (SDL_WindowData *) window->driverdata; |
| if(data) { |
| #if SDL_VIDEO_OPENGL_EGL |
| if (data->egl_surface != EGL_NO_SURFACE) { |
| SDL_EGL_DestroySurface(_this, data->egl_surface); |
| } |
| #endif |
| SDL_free(data); |
| window->driverdata = NULL; |
| } |
| } |
| |
| int |
| RPI_CreateWindowFrom(_THIS, SDL_Window * window, const void *data) |
| { |
| return -1; |
| } |
| |
| void |
| RPI_SetWindowTitle(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_SetWindowIcon(_THIS, SDL_Window * window, SDL_Surface * icon) |
| { |
| } |
| void |
| RPI_SetWindowPosition(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_SetWindowSize(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_ShowWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_HideWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_RaiseWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_MaximizeWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_MinimizeWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_RestoreWindow(_THIS, SDL_Window * window) |
| { |
| } |
| void |
| RPI_SetWindowGrab(_THIS, SDL_Window * window, SDL_bool grabbed) |
| { |
| |
| } |
| |
| /*****************************************************************************/ |
| /* SDL Window Manager function */ |
| /*****************************************************************************/ |
| SDL_bool |
| RPI_GetWindowWMInfo(_THIS, SDL_Window * window, struct SDL_SysWMinfo *info) |
| { |
| if (info->version.major <= SDL_MAJOR_VERSION) { |
| return SDL_TRUE; |
| } else { |
| SDL_SetError("application not compiled with SDL %d.%d", |
| SDL_MAJOR_VERSION, SDL_MINOR_VERSION); |
| return SDL_FALSE; |
| } |
| |
| /* Failed to get window manager information */ |
| return SDL_FALSE; |
| } |
| |
| #endif /* SDL_VIDEO_DRIVER_RPI */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |