src/mesa/drivers/common/t_dd.c

   1 /* $Id: t_dd.c,v 1.3 2002/10/29 20:29:05 brianp Exp $ */
   2
   3 /*
   4  * Mesa 3-D graphics library
   5  * Version:  3.5
   6  *
   7  * Copyright (C) 1999-2001  Brian Paul   All Rights Reserved.
   8  *
   9  * Permission is hereby granted, free of charge, to any person obtaining a
  10  * copy of this software and associated documentation files (the "Software"),
  11  * to deal in the Software without restriction, including without limitation
  12  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  13  * and/or sell copies of the Software, and to permit persons to whom the
  14  * Software is furnished to do so, subject to the following conditions:
  15  *
  16  * The above copyright notice and this permission notice shall be included
  17  * in all copies or substantial portions of the Software.
  18  *
  19  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  20  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  21  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  22  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  23  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  24  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  * Authors:
  27  *    Keith Whitwell <keith@tungstengraphics.com>
  28  */
  29
  30 static void copy_pv_rgba4_spec5( GLcontext *ctx, GLuint edst, GLuint esrc )
  31 {
  32    i810ContextPtr imesa = I810_CONTEXT( ctx );
  33    GLubyte *i810verts = (GLubyte *)imesa->verts;
  34    GLuint shift = imesa->vertex_stride_shift;
  35    i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
  36    i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
  37    dst->ui[4] = src->ui[4];
  38    dst->ui[5] = src->ui[5];
  39 }
  40
  41 static void copy_pv_rgba4( GLcontext *ctx, GLuint edst, GLuint esrc )
  42 {
  43    i810ContextPtr imesa = I810_CONTEXT( ctx );
  44    GLubyte *i810verts = (GLubyte *)imesa->verts;
  45    GLuint shift = imesa->vertex_stride_shift;
  46    i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
  47    i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
  48    dst->ui[4] = src->ui[4];
  49 }
  50
  51 static void copy_pv_rgba3( GLcontext *ctx, GLuint edst, GLuint esrc )
  52 {
  53    i810ContextPtr imesa = I810_CONTEXT( ctx );
  54    GLubyte *i810verts = (GLubyte *)imesa->verts;
  55    GLuint shift = imesa->vertex_stride_shift;
  56    i810Vertex *dst = (i810Vertex *)(i810verts + (edst << shift));
  57    i810Vertex *src = (i810Vertex *)(i810verts + (esrc << shift));
  58    dst->ui[3] = src->ui[3];
  59 }