view README.PS3 @ 3539:f2846bf19360

Fixed bug #896 John Popplewell 2009-12-08 23:05:50 PST Originally reported by AKFoerster on the mailing list. Error decoding UTF8 Russian text to UTF-16LE on Windows, but specifically on platforms without iconv support (the default on Windows). Valid UTF8 characters are flagged as being overlong and then substituted by the UNKNOWN_UNICODE character. After studying the testiconv.c example program, reading the RFCs and putting some printf statements in SDL_iconv.c the problem is in a test for 'Maximum overlong sequences', specifically 4.2.1, which is carried out by the following code: } else if ( p[0] >= 0xC0 ) { if ( (p[0] & 0xE0) != 0xC0 ) { /* Skip illegal sequences return SDL_ICONV_EILSEQ; */ ch = UNKNOWN_UNICODE; } else { if ( (p[0] & 0xCE) == 0xC0 ) { <<<<<<<< here overlong = SDL_TRUE; } ch = (Uint32)(p[0] & 0x1F); left = 1; } } else { Here is the 2-byte encoding of a character in range 00000080 - 000007FF 110xxxxx 10xxxxxx The line in question is supposed to be checking for an overlong sequence which would be less than 11000001 10111111 which should be represented as a single byte. BUT, the mask value (0xCE) is wrong, it isn't checking the top-most bit: 11000001 value 11001110 mask (incorrect) ^ and should be (0xDE): 11000001 value 11011110 mask (correct) making the above code: } else if ( p[0] >= 0xC0 ) { if ( (p[0] & 0xE0) != 0xC0 ) { /* Skip illegal sequences return SDL_ICONV_EILSEQ; */ ch = UNKNOWN_UNICODE; } else { if ( (p[0] & 0xDE) == 0xC0 ) { <<<<<<<< here overlong = SDL_TRUE; } ch = (Uint32)(p[0] & 0x1F); left = 1; } } else { I can supply a test program and/or a patch if required, best regards, John Popplewell
author Sam Lantinga <slouken@libsdl.org>
date Fri, 11 Dec 2009 08:03:43 +0000
parents 94fb40a4a9a7
children
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SDL on Sony Playstation3
------------------------

Installation:
  First, you have to install the Cell SDK
  - Download the Cell SDK installer RPM and ISO images to
    a temporary directory such as /tmp/cellsdk.
  - Mount the image: mount -o loop CellSDK-Devel-Fedora_3.1.0.0.0.iso /tmp/cellsdk
  - Install the SDK installer: rpm -ivh cell-install-3.1.0-0.0.noarch.rpm
  - Install the SDK: cd /opt/cell && ./cellsdk --iso /tmp/cellsdkiso install

  You'll than need to install the SPU-libs
  - Run make ps3-libs && make ps3libs-install

  Finally, install SDL
  - Go to SDL-1.2/ and build SDL like any other GNU style package.
  e.g.
    - Build the configure-script with ./autogen.sh
    - Configure SDL for your needs: ./configure --enable-video-ps3 ...
    - Build and install it: make && make install


Todo:
  - Mouse & Keyboard support
  - On SPU-side the current scaler and converter restrictions are:
    - resolution has to be a multiple of 8 (will work on that)
    - scaler/converter only supports the YV12 and IYUV format
    - the scaler works only bilinear (lanzos would be nice)
  - Optimize the SPU-program handling on the PPE side
  - Integrate spumedia in SDL

Have fun!
  Dirk Herrendoerfer <d.herrendoerfer [at] de [dot ibm [dot] com>