/*

Simple DirectMedia Layer

Copyright (C) 1997-2013 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: */