early-access version 1611
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pineappleEA
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/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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#include "../../SDL_internal.h"
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#if SDL_VIDEO_DRIVER_DIRECTFB
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#include "SDL_assert.h"
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#include "SDL_DirectFB_video.h"
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#include "SDL_DirectFB_mouse.h"
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#include "SDL_DirectFB_modes.h"
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#include "SDL_DirectFB_window.h"
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#include "../SDL_sysvideo.h"
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#include "../../events/SDL_mouse_c.h"
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static SDL_Cursor *DirectFB_CreateDefaultCursor(void);
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static SDL_Cursor *DirectFB_CreateCursor(SDL_Surface * surface,
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int hot_x, int hot_y);
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static int DirectFB_ShowCursor(SDL_Cursor * cursor);
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static void DirectFB_FreeCursor(SDL_Cursor * cursor);
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static void DirectFB_WarpMouse(SDL_Window * window, int x, int y);
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static const char *arrow[] = {
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/* pixels */
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"X ",
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"XX ",
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"X.X ",
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"X..X ",
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"X...X ",
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"X....X ",
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"X.....X ",
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"X......X ",
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"X.......X ",
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"X........X ",
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"X.....XXXXX ",
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"X..X..X ",
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"X.X X..X ",
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"XX X..X ",
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"X X..X ",
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" X..X ",
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" X..X ",
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" X..X ",
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" XX ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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" ",
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};
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static SDL_Cursor *
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DirectFB_CreateDefaultCursor(void)
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{
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SDL_VideoDevice *dev = SDL_GetVideoDevice();
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SDL_DFB_DEVICEDATA(dev);
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DFB_CursorData *curdata;
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DFBSurfaceDescription dsc;
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SDL_Cursor *cursor;
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Uint32 *dest;
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int pitch, i, j;
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SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor));
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SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata));
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dsc.flags =
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DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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dsc.caps = DSCAPS_VIDEOONLY;
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dsc.width = 32;
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dsc.height = 32;
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dsc.pixelformat = DSPF_ARGB;
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SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
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&curdata->surf));
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curdata->hotx = 0;
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curdata->hoty = 0;
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cursor->driverdata = curdata;
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SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
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(void *) &dest, &pitch));
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/* Relies on the fact that this is only called with ARGB surface. */
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for (i = 0; i < 32; i++)
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{
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for (j = 0; j < 32; j++)
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{
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switch (arrow[i][j])
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{
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case ' ': dest[j] = 0x00000000; break;
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case '.': dest[j] = 0xffffffff; break;
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case 'X': dest[j] = 0xff000000; break;
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}
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}
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dest += (pitch >> 2);
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}
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curdata->surf->Unlock(curdata->surf);
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return cursor;
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error:
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return NULL;
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}
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/* Create a cursor from a surface */
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static SDL_Cursor *
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DirectFB_CreateCursor(SDL_Surface * surface, int hot_x, int hot_y)
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{
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SDL_VideoDevice *dev = SDL_GetVideoDevice();
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SDL_DFB_DEVICEDATA(dev);
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DFB_CursorData *curdata;
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DFBSurfaceDescription dsc;
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SDL_Cursor *cursor;
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Uint32 *dest;
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Uint32 *p;
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int pitch, i;
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SDL_assert(surface->format->format == SDL_PIXELFORMAT_ARGB8888);
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SDL_assert(surface->pitch == surface->w * 4);
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SDL_DFB_ALLOC_CLEAR( cursor, sizeof(*cursor));
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SDL_DFB_ALLOC_CLEAR(curdata, sizeof(*curdata));
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dsc.flags =
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DSDESC_WIDTH | DSDESC_HEIGHT | DSDESC_PIXELFORMAT | DSDESC_CAPS;
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dsc.caps = DSCAPS_VIDEOONLY;
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dsc.width = surface->w;
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dsc.height = surface->h;
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dsc.pixelformat = DSPF_ARGB;
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SDL_DFB_CHECKERR(devdata->dfb->CreateSurface(devdata->dfb, &dsc,
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&curdata->surf));
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curdata->hotx = hot_x;
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curdata->hoty = hot_y;
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cursor->driverdata = curdata;
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SDL_DFB_CHECKERR(curdata->surf->Lock(curdata->surf, DSLF_WRITE,
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(void *) &dest, &pitch));
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p = surface->pixels;
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for (i = 0; i < surface->h; i++)
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memcpy((char *) dest + i * pitch,
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(char *) p + i * surface->pitch, 4 * surface->w);
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curdata->surf->Unlock(curdata->surf);
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return cursor;
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error:
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return NULL;
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}
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/* Show the specified cursor, or hide if cursor is NULL */
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static int
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DirectFB_ShowCursor(SDL_Cursor * cursor)
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{
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SDL_DFB_CURSORDATA(cursor);
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SDL_Window *window;
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window = SDL_GetFocusWindow();
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if (!window)
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return -1;
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else {
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SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
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if (display) {
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DFB_DisplayData *dispdata =
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(DFB_DisplayData *) display->driverdata;
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DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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if (cursor)
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SDL_DFB_CHECKERR(windata->dfbwin->
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SetCursorShape(windata->dfbwin,
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curdata->surf, curdata->hotx,
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curdata->hoty));
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SDL_DFB_CHECKERR(dispdata->layer->
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SetCooperativeLevel(dispdata->layer,
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DLSCL_ADMINISTRATIVE));
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SDL_DFB_CHECKERR(dispdata->layer->
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SetCursorOpacity(dispdata->layer,
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cursor ? 0xC0 : 0x00));
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SDL_DFB_CHECKERR(dispdata->layer->
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SetCooperativeLevel(dispdata->layer,
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DLSCL_SHARED));
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}
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}
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return 0;
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error:
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return -1;
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}
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/* Free a window manager cursor */
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static void
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DirectFB_FreeCursor(SDL_Cursor * cursor)
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{
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SDL_DFB_CURSORDATA(cursor);
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SDL_DFB_RELEASE(curdata->surf);
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SDL_DFB_FREE(cursor->driverdata);
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SDL_DFB_FREE(cursor);
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}
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/* Warp the mouse to (x,y) */
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static void
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DirectFB_WarpMouse(SDL_Window * window, int x, int y)
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{
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SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
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DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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int cx, cy;
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SDL_DFB_CHECKERR(windata->dfbwin->GetPosition(windata->dfbwin, &cx, &cy));
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SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer,
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cx + x + windata->client.x,
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cy + y + windata->client.y));
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error:
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return;
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}
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#if USE_MULTI_API
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static void DirectFB_MoveCursor(SDL_Cursor * cursor);
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static void DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window,
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int x, int y);
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static void DirectFB_FreeMouse(SDL_Mouse * mouse);
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static int id_mask;
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static DFBEnumerationResult
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EnumMice(DFBInputDeviceID device_id, DFBInputDeviceDescription desc,
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void *callbackdata)
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{
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DFB_DeviceData *devdata = callbackdata;
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if ((desc.type & DIDTF_MOUSE) && (device_id & id_mask)) {
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SDL_Mouse mouse;
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SDL_zero(mouse);
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mouse.id = device_id;
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mouse.CreateCursor = DirectFB_CreateCursor;
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mouse.ShowCursor = DirectFB_ShowCursor;
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mouse.MoveCursor = DirectFB_MoveCursor;
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mouse.FreeCursor = DirectFB_FreeCursor;
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mouse.WarpMouse = DirectFB_WarpMouse;
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mouse.FreeMouse = DirectFB_FreeMouse;
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mouse.cursor_shown = 1;
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SDL_AddMouse(&mouse, desc.name, 0, 0, 1);
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devdata->mouse_id[devdata->num_mice++] = device_id;
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}
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return DFENUM_OK;
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}
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void
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DirectFB_InitMouse(_THIS)
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{
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SDL_DFB_DEVICEDATA(_this);
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devdata->num_mice = 0;
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if (devdata->use_linux_input) {
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/* try non-core devices first */
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id_mask = 0xF0;
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devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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if (devdata->num_mice == 0) {
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/* try core devices */
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id_mask = 0x0F;
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devdata->dfb->EnumInputDevices(devdata->dfb, EnumMice, devdata);
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}
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}
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if (devdata->num_mice == 0) {
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SDL_Mouse mouse;
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SDL_zero(mouse);
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mouse.CreateCursor = DirectFB_CreateCursor;
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mouse.ShowCursor = DirectFB_ShowCursor;
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mouse.MoveCursor = DirectFB_MoveCursor;
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mouse.FreeCursor = DirectFB_FreeCursor;
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mouse.WarpMouse = DirectFB_WarpMouse;
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mouse.FreeMouse = DirectFB_FreeMouse;
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mouse.cursor_shown = 1;
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SDL_AddMouse(&mouse, "Mouse", 0, 0, 1);
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devdata->num_mice = 1;
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}
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}
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void
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DirectFB_QuitMouse(_THIS)
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{
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SDL_DFB_DEVICEDATA(_this);
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if (devdata->use_linux_input) {
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SDL_MouseQuit();
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} else {
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SDL_DelMouse(0);
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}
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}
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/* This is called when a mouse motion event occurs */
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static void
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DirectFB_MoveCursor(SDL_Cursor * cursor)
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{
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}
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/* Warp the mouse to (x,y) */
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static void
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DirectFB_WarpMouse(SDL_Mouse * mouse, SDL_Window * window, int x, int y)
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{
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SDL_VideoDisplay *display = SDL_GetDisplayForWindow(window);
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DFB_DisplayData *dispdata = (DFB_DisplayData *) display->driverdata;
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DFB_WindowData *windata = (DFB_WindowData *) window->driverdata;
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DFBResult ret;
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int cx, cy;
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SDL_DFB_CHECKERR(windata->dfbwin->GetPosition(windata->dfbwin, &cx, &cy));
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SDL_DFB_CHECKERR(dispdata->layer->WarpCursor(dispdata->layer,
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cx + x + windata->client.x,
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cy + y + windata->client.y));
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error:
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return;
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}
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/* Free the mouse when it's time */
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static void
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DirectFB_FreeMouse(SDL_Mouse * mouse)
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{
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/* nothing yet */
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}
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#else /* USE_MULTI_API */
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void
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DirectFB_InitMouse(_THIS)
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{
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SDL_DFB_DEVICEDATA(_this);
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SDL_Mouse *mouse = SDL_GetMouse();
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mouse->CreateCursor = DirectFB_CreateCursor;
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mouse->ShowCursor = DirectFB_ShowCursor;
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mouse->WarpMouse = DirectFB_WarpMouse;
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mouse->FreeCursor = DirectFB_FreeCursor;
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SDL_SetDefaultCursor(DirectFB_CreateDefaultCursor());
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devdata->num_mice = 1;
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}
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void
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DirectFB_QuitMouse(_THIS)
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{
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}
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#endif
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#endif /* SDL_VIDEO_DRIVER_DIRECTFB */
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/* vi: set ts=4 sw=4 expandtab: */
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Reference in New Issue
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