SDL_DirectFB_mouse.c
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/*
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: */
SDL_DirectFB_modes.h
SDL_DirectFB_video.h
SDL_PIXELFORMAT_ARGB8888
Definition: SDL_pixels.h:247
SDL_GetMouse
SDL_Mouse * SDL_GetMouse(void)
Definition: SDL_mouse.c:66
SDL_DFB_FREE
#define SDL_DFB_FREE(x)
Definition: SDL_DirectFB_video.h:79
SDL_Mouse::ShowCursor
int(* ShowCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:52
Uint32
uint32_t Uint32
An unsigned 32-bit integer type.
Definition: SDL_stdinc.h:155
SDL_Surface::h
int h
Definition: SDL_surface.h:73
x
GLint GLint GLint GLint GLint x
Definition: SDL_opengl.h:1567
window
SDL_Window * window
Definition: testautomation_render.c:26
p
GLfloat GLfloat p
Definition: SDL_opengl_glext.h:11090
SDL_Surface
A collection of pixels used in software blitting.
Definition: SDL_surface.h:69
SDL_Cursor
Definition: SDL_mouse_c.h:30
SDL_Surface::w
int w
Definition: SDL_surface.h:73
SDL_MouseQuit
void SDL_MouseQuit(void)
Definition: SDL_mouse.c:435
SDL_DFB_RELEASE
#define SDL_DFB_RELEASE(x)
Definition: SDL_DirectFB_video.h:78
DirectFB_QuitMouse
void DirectFB_QuitMouse(_THIS)
_this
static SDL_VideoDevice * _this
Definition: SDL_video.c:114
DirectFB_InitMouse
void DirectFB_InitMouse(_THIS)
SDL_DirectFB_window.h
SDL_Mouse::CreateCursor
SDL_Cursor *(* CreateCursor)(SDL_Surface *surface, int hot_x, int hot_y)
Definition: SDL_mouse_c.h:46
SDL_DFB_DEVICEDATA
#define SDL_DFB_DEVICEDATA(dev)
Definition: SDL_DirectFB_video.h:126
y
GLint GLint GLint GLint GLint GLint y
Definition: SDL_opengl.h:1567
SDL_Surface::pixels
void * pixels
Definition: SDL_surface.h:75
_THIS
#define _THIS
Definition: SDL_alsa_audio.h:31
SDL_GetFocusWindow
SDL_Window * SDL_GetFocusWindow(void)
Definition: SDL_video.c:2403
SDL_Mouse::cursor_shown
SDL_bool cursor_shown
Definition: SDL_mouse_c.h:94
SDL_zero
#define SDL_zero(x)
Definition: SDL_stdinc.h:355
cursor
SDL_Cursor * cursor
Definition: testwm2.c:40
SDL_SetDefaultCursor
void SDL_SetDefaultCursor(SDL_Cursor *cursor)
Definition: SDL_mouse.c:55
SDL_VideoDisplay
Definition: SDL_sysvideo.h:120
SDL_Mouse::FreeCursor
void(* FreeCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:58
i
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int in i)
Definition: SDL_x11sym.h:42
SDL_assert
#define SDL_assert(condition)
Definition: SDL_assert.h:167
NULL
#define NULL
Definition: begin_code.h:143
SDL_DFB_ALLOC_CLEAR
#define SDL_DFB_ALLOC_CLEAR(r, s)
Definition: SDL_DirectFB_video.h:122
SDL_DFB_CHECKERR
#define SDL_DFB_CHECKERR(x...)
Definition: SDL_DirectFB_video.h:100
SDL_Surface::format
SDL_PixelFormat * format
Definition: SDL_surface.h:72
SDL_GetDisplayForWindow
SDL_VideoDisplay * SDL_GetDisplayForWindow(SDL_Window *window)
Definition: SDL_video.c:1039
memcpy
#define memcpy
Definition: SDL_malloc.c:640
SDL_Window
The type used to identify a window.
Definition: SDL_sysvideo.h:71
SDL_DirectFB_mouse.h
SDL_DFB_CURSORDATA
#define SDL_DFB_CURSORDATA(curs)
Definition: SDL_DirectFB_mouse.h:37
SDL_Mouse::WarpMouse
void(* WarpMouse)(SDL_Window *window, int x, int y)
Definition: SDL_mouse_c.h:61
SDL_Surface::pitch
int pitch
Definition: SDL_surface.h:74
SDL_VideoDevice
Definition: SDL_sysvideo.h:142
SDL_GetVideoDevice
SDL_VideoDevice * SDL_GetVideoDevice(void)
Definition: SDL_video.c:573
SDL_Mouse
Definition: SDL_mouse_c.h:43
SDL_Window::driverdata
void * driverdata
Definition: SDL_sysvideo.h:106
SDL_PixelFormat::format
Uint32 format
Definition: SDL_pixels.h:301
SDL_Mouse::MoveCursor
void(* MoveCursor)(SDL_Cursor *cursor)
Definition: SDL_mouse_c.h:55
SDL_Cursor::driverdata
void * driverdata
Definition: SDL_mouse_c.h:33
SDL_VideoDisplay::driverdata
void * driverdata
Definition: SDL_sysvideo.h:133
SDL_assert.h
j
return Display return Display Bool Bool int int int return Display XEvent Bool(*) XPointer return Display return Display Drawable _Xconst char unsigned int unsigned int return Display Pixmap Pixmap XColor XColor unsigned int unsigned int return Display _Xconst char char int char return Display Visual unsigned int int int char unsigned int unsigned int int in j)
Definition: SDL_x11sym.h:42