src/audio/qsa/SDL_qsa_audio.h
author Sam Lantinga
Tue, 24 Mar 2009 10:33:12 +0000
changeset 3099 82e60908fab1
child 3139 7f684f249ec9
permissions -rw-r--r--
Date: Mon, 23 Mar 2009 09:17:24 +0200
From: "Mike Gorchak"
Subject: New QNX patches

Please apply patch qnx4.diff, which is attached. What has been done:
1)Added back OpenGL ES renderer for QNX target. Added few corrections to
OpenGL ES renderer to let it work under QNX. OpenGL ES renderer do not
support textures under QNX, so I think some additional work must be done.
2) Added GL_OES_query_matrix extension to SDL_opengles.h header file, which
required by OpenGL ES 1.1 specification.
3) Added attribute clearing at the entrance of function
SDL_GL_GetAttribure(). Added error checking into the function
SDL_GL_GetAttribure(), because some attributes can't be obtained in OpenGL
ES 1.0.
4) Porting testdyngles to OpenGL ES 1.0 (1.1 has glColor4ub() and
glColor4f() functions, but 1.0 has glColor4f() only).
5) Added error checking after obtaining attributes using
SDL_GL_GetAttribute() function to the testgl2 and testgles.
6) Small correction to testmultiaudio with printing errors.
7) Added software and accelerated OpenGL ES 1.0 support into the QNX GF
driver.

Please remove ./src/audio/nto directory - it will not be used anymore.
Please create ./src/audio/qsa directory and add content of the archive
qsa.tar.gz into this directory. I rewrote some sound code, added support for
multiple audio cards, enumeration, etc. Added initial support for capture.

As far as I can understand SDL 1.3 is not supporting audio capture right now
? Sam, Am I right ? Or audio capture must be supported through the
PlayDevice routine ?

And last, please put file SDL_gf_opengles.c to the ./src/video/qnxgf
directory. It is OpenGL ES 1.1 emulation layer for some functions, which are
not supported by OpenGL ES 1.0.
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Library General Public
     7     License as published by the Free Software Foundation; either
     8     version 2 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Library General Public License for more details.
    14 
    15     You should have received a copy of the GNU Library General Public
    16     License along with this library; if not, write to the Free
    17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 
    22     QNX Sound Architecture (QSA) SDL driver
    23     Copyright (C) 2009 Mike Gorchak
    24     (mike@malva.ua, lestat@i.com.ua)
    25 */
    26 
    27 #include "SDL_config.h"
    28 
    29 #ifndef __SDL_QSA_AUDIO_H__
    30 #define __SDL_QSA_AUDIO_H__
    31 
    32 #include <sys/asoundlib.h>
    33 
    34 #include "../SDL_sysaudio.h"
    35 
    36 /* Hidden "this" pointer for the audio functions */
    37 #define _THIS SDL_AudioDevice* this
    38 
    39 struct SDL_PrivateAudioData
    40 {
    41     /* SDL capture state */
    42     int iscapture;
    43 
    44     /* The audio device handle */
    45     int cardno;
    46     int deviceno;
    47     snd_pcm_t* audio_handle;
    48 
    49     /* The audio file descriptor */
    50     int audio_fd;
    51 
    52     /* Select timeout status */
    53     uint32_t timeout_on_wait;
    54 
    55     /* Raw mixing buffer */
    56     Uint8* pcm_buf;
    57     Uint32 pcm_len;
    58 };
    59 
    60 #endif /* __SDL_QSA_AUDIO_H__ */
    61 
    62 /* vi: set ts=4 sw=4 expandtab: */