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Date: Thu, 05 Feb 2009 18:07:35 +0100
From: Stefan Klug
Subject: [SDL] SDL 1.3 WinCE backend
as promised, I've started to work on the WinCE backend of SDL 1.3
I've modified the win32 video backend and the gdi renderer, to work
properly in WinCE.
The results till now are great, but there is still some work to do.
Attached are two patches with my changes.
I would be happy if someone could review and propably commit them.
The first one (configure.in.patch) should be straight forward without
any side effects.
The second one does the necessary changes to the win32 backend. I was
really unhappy to start slicing this shiny new backend with
#ifdef/#endif but I saw no other option.
The most problematic issues are:
- WinCe has no GetDIBits, so its practically impossible to fill a
BITMAPINFO with correct values. I therefore removed the bmi member from
the GDI_RenderData in SDL_gdirender.c to prevent usage of a not or not
properly initialized bmi.
- In SDL_win32window.c I exchanged some ASCII function by their general
counterparts, (In CE only the Unicode versions are available). I don't
know if this has a negative effect when running in win32
Cheers
Stefan
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Mon, 23 Mar 2009 05:35:21 +0000 |
parents | 355632dca928 |
children |
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<HTML ><HEAD ><TITLE >SDL_BuildAudioCVT</TITLE ><META NAME="GENERATOR" CONTENT="Modular DocBook HTML Stylesheet Version 1.76b+ "><LINK REL="HOME" TITLE="SDL Library Documentation" HREF="index.html"><LINK REL="UP" TITLE="Audio" HREF="audio.html"><LINK REL="PREVIOUS" TITLE="SDL_AudioCVT" HREF="sdlaudiocvt.html"><LINK REL="NEXT" TITLE="SDL_ConvertAudio" HREF="sdlconvertaudio.html"></HEAD ><BODY CLASS="REFENTRY" BGCOLOR="#FFF8DC" TEXT="#000000" LINK="#0000ee" VLINK="#551a8b" ALINK="#ff0000" ><DIV CLASS="NAVHEADER" ><TABLE SUMMARY="Header navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TH COLSPAN="3" ALIGN="center" >SDL Library Documentation</TH ></TR ><TR ><TD WIDTH="10%" ALIGN="left" VALIGN="bottom" ><A HREF="sdlaudiocvt.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="80%" ALIGN="center" VALIGN="bottom" ></TD ><TD WIDTH="10%" ALIGN="right" VALIGN="bottom" ><A HREF="sdlconvertaudio.html" ACCESSKEY="N" >Next</A ></TD ></TR ></TABLE ><HR ALIGN="LEFT" WIDTH="100%"></DIV ><H1 ><A NAME="SDLBUILDAUDIOCVT" ></A >SDL_BuildAudioCVT</H1 ><DIV CLASS="REFNAMEDIV" ><A NAME="AEN7002" ></A ><H2 >Name</H2 >SDL_BuildAudioCVT -- Initializes a SDL_AudioCVT structure for conversion</DIV ><DIV CLASS="REFSYNOPSISDIV" ><A NAME="AEN7005" ></A ><H2 >Synopsis</H2 ><DIV CLASS="FUNCSYNOPSIS" ><A NAME="AEN7006" ></A ><P ></P ><PRE CLASS="FUNCSYNOPSISINFO" >#include "SDL.h"</PRE ><P ><CODE ><CODE CLASS="FUNCDEF" >int <B CLASS="FSFUNC" >SDL_BuildAudioCVT</B ></CODE >(SDL_AudioCVT *cvt, Uint16 src_format, Uint8 src_channels, int src_rate, Uint16 dst_format, Uint8 dst_channels, int dst_rate);</CODE ></P ><P ></P ></DIV ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7012" ></A ><H2 >Description</H2 ><P >Before an <A HREF="sdlaudiocvt.html" ><SPAN CLASS="STRUCTNAME" >SDL_AudioCVT</SPAN ></A > structure can be used to convert audio data it must be initialized with source and destination information. </P ><P ><TT CLASS="PARAMETER" ><I >src_format</I ></TT > and <TT CLASS="PARAMETER" ><I >dst_format</I ></TT > are the source and destination format of the conversion. (For information on audio formats see <A HREF="sdlaudiospec.html" ><SPAN CLASS="STRUCTNAME" > SDL_AudioSpec</SPAN ></A >). <TT CLASS="PARAMETER" ><I >src_channels</I ></TT > and <TT CLASS="PARAMETER" ><I >dst_channels</I ></TT > are the number of channels in the source and destination formats. Finally, <TT CLASS="PARAMETER" ><I >src_rate</I ></TT > and <TT CLASS="PARAMETER" ><I >dst_rate</I ></TT > are the frequency or samples-per-second of the source and destination formats. Once again, see <A HREF="sdlaudiospec.html" ><SPAN CLASS="STRUCTNAME" >SDL_AudioSpec</SPAN ></A >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7028" ></A ><H2 >Return Values</H2 ><P >Returns <SPAN CLASS="RETURNVALUE" >-1</SPAN > if the filter could not be built or 1 if it could.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7032" ></A ><H2 >Examples</H2 ><P >See <A HREF="sdlconvertaudio.html" ><TT CLASS="FUNCTION" >SDL_ConvertAudio</TT ></A >.</P ></DIV ><DIV CLASS="REFSECT1" ><A NAME="AEN7037" ></A ><H2 >See Also</H2 ><P ><A HREF="sdlconvertaudio.html" ><TT CLASS="FUNCTION" >SDL_ConvertAudio</TT ></A >, <A HREF="sdlaudiocvt.html" ><TT CLASS="FUNCTION" >SDL_AudioCVT</TT ></A ></P ></DIV ><DIV CLASS="NAVFOOTER" ><HR ALIGN="LEFT" WIDTH="100%"><TABLE SUMMARY="Footer navigation table" WIDTH="100%" BORDER="0" CELLPADDING="0" CELLSPACING="0" ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" ><A HREF="sdlaudiocvt.html" ACCESSKEY="P" >Prev</A ></TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="index.html" ACCESSKEY="H" >Home</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" ><A HREF="sdlconvertaudio.html" ACCESSKEY="N" >Next</A ></TD ></TR ><TR ><TD WIDTH="33%" ALIGN="left" VALIGN="top" >SDL_AudioCVT</TD ><TD WIDTH="34%" ALIGN="center" VALIGN="top" ><A HREF="audio.html" ACCESSKEY="U" >Up</A ></TD ><TD WIDTH="33%" ALIGN="right" VALIGN="top" >SDL_ConvertAudio</TD ></TR ></TABLE ></DIV ></BODY ></HTML >