view src/video/nanox/SDL_nxmouse.c @ 2661:d38309be5178 gsoc2008_audio_resampling

The windowed sinc filter generation code seems to be working fine. The FIR filtering code is also now working reasonably well. Occasionally the FIR filter will pop, but setting the normalization factor lower seems to help this. I suspect the problem is in the fixed point multiply/add. I also have a hunch the zero stuffing/sample discarding code is not correct, and I'll look at that soon to get it sorted out.
author Aaron Wishnick <schnarf@gmail.com>
date Wed, 02 Jul 2008 08:04:50 +0000
parents c121d94672cb
children 99210400e8b9
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga
    Copyright (C) 2001  Hsieh-Fu Tsai

    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 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
    Library General Public License for more details.

    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

    Sam Lantinga
    slouken@libsdl.org
    
    Hsieh-Fu Tsai
    clare@setabox.com
*/
#include "SDL_config.h"

#include "../../events/SDL_events_c.h"

#include "SDL_nxmouse_c.h"

// The implementation dependent data for the window manager cursor
struct WMcursor
{
    int unused;
};

WMcursor *
NX_CreateWMCursor(_THIS,
                  Uint8 * data, Uint8 * mask, int w, int h, int hot_x,
                  int hot_y)
{
    WMcursor *cursor;

    Dprintf("enter NX_CreateWMCursor\n");

    cursor = (WMcursor *) SDL_malloc(sizeof(WMcursor));
    if (cursor == NULL) {
        SDL_OutOfMemory();
        return NULL;
    }

    Dprintf("leave NX_CreateWMCursor\n");
    return cursor;
}

void
NX_FreeWMCursor(_THIS, WMcursor * cursor)
{
    Dprintf("NX_FreeWMCursor\n");
    SDL_free(cursor);
    return;
}

void
NX_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
{
    GR_WINDOW_INFO info;

    Dprintf("enter NX_WarpWMCursor\n");
    SDL_Lock_EventThread();

    GrGetWindowInfo(SDL_Window, &info);
    GrMoveCursor(info.x + x, info.y + y);

    SDL_Unlock_EventThread();
    Dprintf("leave NX_WarpWMCursor\n");
}

int
NX_ShowWMCursor(_THIS, WMcursor * cursor)
{
    Dprintf("NX_ShowWMCursor\n");
    return 1;
}

/* vi: set ts=4 sw=4 expandtab: */