Mercurial > sdl-ios-xcode
view src/video/directfb/SDL_DirectFB_mouse.c @ 4590:1ad70fb49fcb
Fix so many things that there is little place in this column to list them all but the result is that blending modes just work now for drawing primitives.
Fixes involved:
1. Fix handling of alpha channel when SDL_BLENDMODE_NONE is set.
2. Make xrendercolor use floating-point values for color channels and then convert to 16 bit ints.
3. Fix handling of visuals in SDL_x11modes.c so that a 32 bit ARGB visual is used.
4. Fix the background pixel value in SDL_x11window.c so that the window background has an alpha value of 0xFF and not 0.
author | Sunny Sachanandani <sunnysachanandani@gmail.com> |
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date | Fri, 09 Jul 2010 21:36:41 +0530 |
parents | f7b03b6838cb |
children | 25b9cd8bdc30 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #include "SDL_config.h" #include "SDL_DirectFB_video.h" #include "../SDL_sysvideo.h" #include "../../events/SDL_mouse_c.h" 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_Mouse * mouse, SDL_Window * window, int x, int y); static void DirectFB_FreeMouse(SDL_Mouse * mouse); 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); } } /* 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_DFB_CALLOC(cursor, 1, sizeof(*cursor)); SDL_DFB_CALLOC(curdata, 1, 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)); /* Relies on the fact that this is only called with ARGB surface. */ 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 = window->display; if (display) { DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata; DFB_WindowData *windata = (DFB_WindowData *) window->driverdata; if (cursor) SDL_DFB_CHECKERR(windata->window-> SetCursorShape(windata->window, 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; } /* This is called when a mouse motion event occurs */ static void DirectFB_MoveCursor(SDL_Cursor * cursor) { } /* 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_Mouse * mouse, SDL_Window * window, int x, int y) { SDL_VideoDisplay *display = window->display; DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata; DFB_WindowData *windata = (DFB_WindowData *) window->driverdata; DFBResult ret; int cx, cy; SDL_DFB_CHECKERR(windata->window->GetPosition(windata->window, &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 */ } /* vi: set ts=4 sw=4 expandtab: */