IABSD.fr/xenocara/xserver/glx/renderpixswap.c

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• Author : matthieu
  Date : 2008-11-02 15:26:08
  Hash : 60021fe9
  Message : xserver 1.5.2. tested by ckuethe@, oga@, and others.

• xserver/glx/renderpixswap.c

• /*
  ** License Applicability. Except to the extent portions of this file are
  ** made subject to an alternative license as permitted in the SGI Free
  ** Software License B, Version 1.1 (the "License"), the contents of this
  ** file are subject only to the provisions of the License. You may not use
  ** this file except in compliance with the License. You may obtain a copy
  ** of the License at Silicon Graphics, Inc., attn: Legal Services, 1600
  ** Amphitheatre Parkway, Mountain View, CA 94043-1351, or at:
  ** 
  ** http://oss.sgi.com/projects/FreeB
  ** 
  ** Note that, as provided in the License, the Software is distributed on an
  ** "AS IS" basis, with ALL EXPRESS AND IMPLIED WARRANTIES AND CONDITIONS
  ** DISCLAIMED, INCLUDING, WITHOUT LIMITATION, ANY IMPLIED WARRANTIES AND
  ** CONDITIONS OF MERCHANTABILITY, SATISFACTORY QUALITY, FITNESS FOR A
  ** PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
  ** 
  ** Original Code. The Original Code is: OpenGL Sample Implementation,
  ** Version 1.2.1, released January 26, 2000, developed by Silicon Graphics,
  ** Inc. The Original Code is Copyright (c) 1991-2000 Silicon Graphics, Inc.
  ** Copyright in any portions created by third parties is as indicated
  ** elsewhere herein. All Rights Reserved.
  ** 
  ** Additional Notice Provisions: The application programming interfaces
  ** established by SGI in conjunction with the Original Code are The
  ** OpenGL(R) Graphics System: A Specification (Version 1.2.1), released
  ** April 1, 1999; The OpenGL(R) Graphics System Utility Library (Version
  ** 1.3), released November 4, 1998; and OpenGL(R) Graphics with the X
  ** Window System(R) (Version 1.3), released October 19, 1998. This software
  ** was created using the OpenGL(R) version 1.2.1 Sample Implementation
  ** published by SGI, but has not been independently verified as being
  ** compliant with the OpenGL(R) version 1.2.1 Specification.
  **
  */
  
  #define NEED_REPLIES
  #ifdef HAVE_DIX_CONFIG_H
  #include <dix-config.h>
  #endif
  
  #include "glxserver.h"
  #include "unpack.h"
  #include "indirect_dispatch.h"
  #include "glapitable.h"
  #include "glapi.h"
  #include "glthread.h"
  #include "dispatch.h"
  
  void __glXDispSwap_SeparableFilter2D(GLbyte *pc)
  {
      __GLXdispatchConvolutionFilterHeader *hdr =
  				(__GLXdispatchConvolutionFilterHeader *) pc;
      GLint hdrlen, image1len;
      __GLX_DECLARE_SWAP_VARIABLES;
  
      hdrlen = __GLX_PAD(__GLX_CONV_FILT_CMD_HDR_SIZE);
  
      __GLX_SWAP_INT((GLbyte *)&hdr->rowLength);
      __GLX_SWAP_INT((GLbyte *)&hdr->skipRows);
      __GLX_SWAP_INT((GLbyte *)&hdr->skipPixels);
      __GLX_SWAP_INT((GLbyte *)&hdr->alignment);
  
      __GLX_SWAP_INT((GLbyte *)&hdr->target);
      __GLX_SWAP_INT((GLbyte *)&hdr->internalformat);
      __GLX_SWAP_INT((GLbyte *)&hdr->width);
      __GLX_SWAP_INT((GLbyte *)&hdr->height);
      __GLX_SWAP_INT((GLbyte *)&hdr->format);
      __GLX_SWAP_INT((GLbyte *)&hdr->type);
  
      /*
      ** Just invert swapBytes flag; the GL will figure out if it needs to swap
      ** the pixel data.
      */
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SWAP_BYTES, !hdr->swapBytes) );
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_LSB_FIRST, hdr->lsbFirst) );
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ROW_LENGTH, hdr->rowLength) );
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_ROWS, hdr->skipRows) );
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_SKIP_PIXELS, hdr->skipPixels) );
      CALL_PixelStorei( GET_DISPATCH(), (GL_UNPACK_ALIGNMENT, hdr->alignment) );
  
      /* XXX check this usage - internal code called
      ** a version without the packing parameters
      */
      image1len = __glXImageSize(hdr->format, hdr->type, 0, hdr->width, 1, 1,
  			       0, hdr->rowLength, 0, hdr->skipRows,
  			       hdr->alignment);
      image1len = __GLX_PAD(image1len);
  
  
      CALL_SeparableFilter2D( GET_DISPATCH(), (hdr->target, hdr->internalformat,
  		 hdr->width, hdr->height, hdr->format, hdr->type,
  		 ((GLubyte *)hdr+hdrlen), ((GLubyte *)hdr+hdrlen+image1len)) );
  }