| /* |
| 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_DIRECTFB |
| |
| #include "SDL_assert.h" |
| |
| #include "SDL_DirectFB_video.h" |
| #include "SDL_DirectFB_mouse.h" |
| #include "SDL_DirectFB_modes.h" |
| #include "SDL_DirectFB_window.h" |
| |
| #include "../SDL_sysvideo.h" |
| #include "../../events/SDL_mouse_c.h" |
| |
| static SDL_Cursor *DirectFB_CreateDefaultCursor(void); |
| static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface, |
| int hot_x, int hot_y); |
| static int DirectFB_ShowCursor(SDL_Cursor * cursor); |
| static void DirectFB_MoveCursor(SDL_Cursor * cursor); |
| static void DirectFB_FreeCursor(SDL_Cursor * cursor); |
| static void DirectFB_WarpMouse(SDL_Window * window, int x, int y); |
| static void DirectFB_FreeMouse(SDL_Mouse * mouse); |
| |
| static const char *arrow[] = { |
| /* pixels */ |
| "X ", |
| "XX ", |
| "X.X ", |
| "X..X ", |
| "X...X ", |
| "X....X ", |
| "X.....X ", |
| "X......X ", |
| "X.......X ", |
| "X........X ", |
| "X.....XXXXX ", |
| "X..X..X ", |
| "X.X X..X ", |
| "XX X..X ", |
| "X X..X ", |
| " X..X ", |
| " X..X ", |
| " X..X ", |
| " XX ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| " ", |
| }; |
| |
| static SDL_Cursor * |
| DirectFB_CreateDefaultCursor(void) |
| { |
| SDL_VideoDevice *dev = SDL_GetVideoDevice(); |
| |
| SDL_DFB_DEVICEDATA(dev); |
| DFB_CursorData *curdata; |
| DFBResult ret; |
| DFBSurfaceDescription dsc; |
| SDL_Cursor *cursor; |
| Uint32 *dest; |
| Uint32 *p; |
| int pitch, i, j; |
| |
| SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor)); |
| SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata)); |
| |
| dsc.flags = |
| DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS; |
| dsc.caps = DSCAPS_VIDEOONLY; |
| dsc.width = 32; |
| dsc.height = 32; |
| dsc.pixelformat = DSPF_ARGB; |
| |
| SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, |
| &curdata->surf)); |
| curdata->hotx = 0; |
| curdata->hoty = 0; |
| cursor->driverdata = curdata; |
| |
| SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE, |
| (void *) &dest, &pitch)); |
| |
| /* Relies on the fact that this is only called with ARGB surface. */ |
| for (i = 0; i < 32; i++) |
| { |
| for (j = 0; j < 32; j++) |
| { |
| switch (arrow[i][j]) |
| { |
| case ' ': dest[j] = 0x00000000; break; |
| case '.': dest[j] = 0xffffffff; break; |
| case 'X': dest[j] = 0xff000000; break; |
| } |
| } |
| dest += (pitch >> 2); |
| } |
| |
| curdata->surf->Unlock(curdata->surf); |
| return cursor; |
| error: |
| return NULL; |
| } |
| |
| /* Create a cursor from a surface */ |
| static SDL_Cursor * |
| DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y) |
| { |
| SDL_VideoDevice *dev = SDL_GetVideoDevice(); |
| |
| SDL_DFB_DEVICEDATA(dev); |
| DFB_CursorData *curdata; |
| DFBResult ret; |
| DFBSurfaceDescription dsc; |
| SDL_Cursor *cursor; |
| Uint32 *dest; |
| Uint32 *p; |
| int pitch, i; |
| |
| SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888); |
| SDL_assert(surface->pitch == surface->w * 4); |
| |
| SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor)); |
| SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata)); |
| |
| dsc.flags = |
| DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS; |
| dsc.caps = DSCAPS_VIDEOONLY; |
| dsc.width = surface->w; |
| dsc.height = surface->h; |
| dsc.pixelformat = DSPF_ARGB; |
| |
| SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc, |
| &curdata->surf)); |
| curdata->hotx = hot_x; |
| curdata->hoty = hot_y; |
| cursor->driverdata = curdata; |
| |
| SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE, |
| (void *) &dest, &pitch)); |
| |
| p = surface->pixels; |
| for (i = 0; i < surface->h; i++) |
| memcpy((char *) dest + i * pitch, |
| (char *) p + i * surface->pitch, 4 * surface->w); |
| |
| curdata->surf->Unlock(curdata->surf); |
| return cursor; |
| error: |
| return NULL; |
| } |
| |
| /* Show the specified cursor, or hide if cursor is NULL */ |
| static int |
| DirectFB_ShowCursor(SDL_Cursor * cursor) |
| { |
| SDL_DFB_CURSORDATA(cursor); |
| DFBResult ret; |
| SDL_Window *window; |
| |
| window = SDL_GetFocusWindow(); |
| if (!window) |
| return -1; |
| else { |
| SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window); |
| |
| if (display) { |
| DFB_DisplayData *dispdata = |
| (DFB_DisplayData *) display->driverdata; |
| DFB_WindowData *windata = (DFB_WindowData *) window->driverdata; |
| |
| if (cursor) |
| SDL_DFB_CHECKERR(windata->dfbwin-> |
| SetCursorShape(windata->dfbwin, |
| curdata->surf, curdata->hotx, |
| curdata->hoty)); |
| |
| SDL_DFB_CHECKERR(dispdata->layer-> |
| SetCooperativeLevel(dispdata->layer, |
| DLSCL_ADMINISTRATIVE)); |
| SDL_DFB_CHECKERR(dispdata->layer-> |
| SetCursorOpacity(dispdata->layer, |
| cursor ? 0xC0 : 0x00)); |
| SDL_DFB_CHECKERR(dispdata->layer-> |
| SetCooperativeLevel(dispdata->layer, |
| DLSCL_SHARED)); |
| } |
| } |
| |
| return 0; |
| error: |
| return -1; |
| } |
| |
| /* Free a window manager cursor */ |
| static void |
| DirectFB_FreeCursor(SDL_Cursor * cursor) |
| { |
| SDL_DFB_CURSORDATA(cursor); |
| |
| SDL_DFB_RELEASE(curdata->surf); |
| SDL_DFB_FREE(cursor->driverdata); |
| SDL_DFB_FREE(cursor); |
| } |
| |
| /* Warp the mouse to (x,y) */ |
| static void |
| DirectFB_WarpMouse(SDL_Window * window, int x, int y) |
| { |
| SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window); |
| DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata; |
| DFB_WindowData *windata = (DFB_WindowData *) window->driverdata; |
| DFBResult ret; |
| int cx, cy; |
| |
| SDL_DFB_CHECKERR(windata->dfbwin->GetPosition(windata->dfbwin, &cx, &cy)); |
| SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer, |
| cx + x + windata->client.x, |
| cy + y + windata->client.y)); |
| |
| error: |
| return; |
| } |
| |
| #if USE_MULTI_API |
| |
| static void DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window, |
| int x, int y); |
| |
| static int id_mask; |
| |
| static DFBEnumerationResult |
| EnumMice(DFBInputDeviceID device_id, DFBInputDeviceDescription desc, |
| void *callbackdata) |
| { |
| DFB_DeviceData *devdata = callbackdata; |
| |
| if ((desc.type & DIDTF_MOUSE) && (device_id & id_mask)) { |
| SDL_Mouse mouse; |
| |
| SDL_zero(mouse); |
| mouse.id = device_id; |
| mouse.CreateCursor = DirectFB_CreateCursor; |
| mouse.ShowCursor = DirectFB_ShowCursor; |
| mouse.MoveCursor = DirectFB_MoveCursor; |
| mouse.FreeCursor = DirectFB_FreeCursor; |
| mouse.WarpMouse = DirectFB_WarpMouse; |
| mouse.FreeMouse = DirectFB_FreeMouse; |
| mouse.cursor_shown = 1; |
| |
| SDL_AddMouse(&mouse, desc.name, 0, 0, 1); |
| devdata->mouse_id[devdata->num_mice++] = device_id; |
| } |
| return DFENUM_OK; |
| } |
| |
| void |
| DirectFB_InitMouse(_THIS) |
| { |
| SDL_DFB_DEVICEDATA(_this); |
| |
| devdata->num_mice = 0; |
| if (devdata->use_linux_input) { |
| /* try non-core devices first */ |
| id_mask = 0xF0; |
| devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata); |
| if (devdata->num_mice == 0) { |
| /* try core devices */ |
| id_mask = 0x0F; |
| devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata); |
| } |
| } |
| if (devdata->num_mice == 0) { |
| SDL_Mouse mouse; |
| |
| SDL_zero(mouse); |
| mouse.CreateCursor = DirectFB_CreateCursor; |
| mouse.ShowCursor = DirectFB_ShowCursor; |
| mouse.MoveCursor = DirectFB_MoveCursor; |
| mouse.FreeCursor = DirectFB_FreeCursor; |
| mouse.WarpMouse = DirectFB_WarpMouse; |
| mouse.FreeMouse = DirectFB_FreeMouse; |
| mouse.cursor_shown = 1; |
| |
| SDL_AddMouse(&mouse, "Mouse", 0, 0, 1); |
| devdata->num_mice = 1; |
| } |
| } |
| |
| void |
| DirectFB_QuitMouse(_THIS) |
| { |
| SDL_DFB_DEVICEDATA(_this); |
| |
| if (devdata->use_linux_input) { |
| SDL_MouseQuit(); |
| } else { |
| SDL_DelMouse(0); |
| } |
| } |
| |
| |
| /* This is called when a mouse motion event occurs */ |
| static void |
| DirectFB_MoveCursor(SDL_Cursor * cursor) |
| { |
| |
| } |
| |
| /* Warp the mouse to (x,y) */ |
| static void |
| DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window, int x, int y) |
| { |
| SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window); |
| DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata; |
| DFB_WindowData *windata = (DFB_WindowData *) window->driverdata; |
| DFBResult ret; |
| int cx, cy; |
| |
| SDL_DFB_CHECKERR(windata->dfbwin->GetPosition(windata->dfbwin, &cx, &cy)); |
| SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer, |
| cx + x + windata->client.x, |
| cy + y + windata->client.y)); |
| |
| error: |
| return; |
| } |
| |
| /* Free the mouse when it's time */ |
| static void |
| DirectFB_FreeMouse(SDL_Mouse * mouse) |
| { |
| /* nothing yet */ |
| } |
| |
| #else /* USE_MULTI_API */ |
| |
| void |
| DirectFB_InitMouse(_THIS) |
| { |
| SDL_DFB_DEVICEDATA(_this); |
| |
| SDL_Mouse *mouse = SDL_GetMouse(); |
| |
| mouse->CreateCursor = DirectFB_CreateCursor; |
| mouse->ShowCursor = DirectFB_ShowCursor; |
| mouse->WarpMouse = DirectFB_WarpMouse; |
| mouse->FreeCursor = DirectFB_FreeCursor; |
| |
| SDL_SetDefaultCursor(DirectFB_CreateDefaultCursor()); |
| |
| devdata->num_mice = 1; |
| } |
| |
| void |
| DirectFB_QuitMouse(_THIS) |
| { |
| } |
| |
| |
| #endif |
| |
| #endif /* SDL_VIDEO_DRIVER_DIRECTFB */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |