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Date: Mon, 13 Dec 2004 21:28:18 -0500 From: Jonathan Atkins Subject: [SDL] SDL_SaveBMP width bugfix this fixes the pitch versus width difference that can happen (especially for 8bit and 24bit (with the exact RGBAmasks) surfaces) when you use SDL_SaveBMP. The problem was the pitch was used instead of the width, which in some cases is much wider than the screen area you really want to save...making for ugly crud on the saved image borders. This code has been tested with & without pitch overhangs...and with the right masks for 24 bit surfaces. I tested 8,15,16,24,32-0RGB,32-RGBA(with no SDL_SRCALPHA flag).
author Sam Lantinga <slouken@libsdl.org>
date Tue, 14 Dec 2004 06:20:49 +0000
parents b8d311d90021
children 19418e4422cb
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/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2004 Sam Lantinga

    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
*/

#ifndef __SDL_NTO_AUDIO_H__
#define __SDL_NTO_AUDIO_H__

#include "SDL_sysaudio.h"
#include <sys/asoundlib.h>

/* Hidden "this" pointer for the audio functions */
#define _THIS	SDL_AudioDevice *this

struct SDL_PrivateAudioData
{
    /* The audio device handle */
    int cardno;
    int deviceno;
    snd_pcm_t* audio_handle;

    /* The audio file descriptor */
    int audio_fd;

    /* The parent process id, to detect when application quits */
    pid_t parent;

    /* Raw mixing buffer */
    Uint8* pcm_buf;
    Uint32 pcm_len;

    /* QSA parameters */
    snd_pcm_channel_status_t cstatus;
    snd_pcm_channel_params_t cparams;
    snd_pcm_channel_setup_t  csetup;
};

#define cardno          (this->hidden->cardno)
#define deviceno        (this->hidden->deviceno)
#define audio_handle    (this->hidden->audio_handle)
#define audio_fd        (this->hidden->audio_fd)
#define parent          (this->hidden->parent)
#define pcm_buf         (this->hidden->pcm_buf)
#define pcm_len         (this->hidden->pcm_len)
#define cstatus         (this->hidden->cstatus)
#define cparams         (this->hidden->cparams)
#define csetup          (this->hidden->csetup)

#endif /* __SDL_NTO_AUDIO_H__ */