src/mesa/drivers/dri/ffb/ffb_points.c

   1 /*
   2  *
   3  * GLX Hardware Device Driver for Sun Creator/Creator3D
   4  * Copyright (C) 2000, 2001 David S. Miller
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * DAVID MILLER, OR ANY OTHER CONTRIBUTORS BE LIABLE FOR ANY CLAIM,
  20  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
  21  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
  22  * OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  *
  25  *    David S. Miller <davem@redhat.com>
  26  */
  27
  28 #include "main/mtypes.h"
  29 #include "ffb_dd.h"
  30 #include "ffb_context.h"
  31 #include "ffb_vb.h"
  32 #include "ffb_points.h"
  33 #include "ffb_tris.h"
  34 #include "ffb_lock.h"
  35
  36
  37 #undef FFB_POINT_TRACE
  38
  39 #define FFB_POINT_AA_BIT        0x01
  40
  41 static ffb_point_func ffb_point_tab[0x08];
  42
  43 #define IND (0)
  44 #define TAG(x) x
  45 #include "ffb_pointtmp.h"
  46
  47 #define IND (FFB_POINT_AA_BIT)
  48 #define TAG(x) x##_aa
  49 #include "ffb_pointtmp.h"
  50
  51 void ffbDDPointfuncInit(void)
  52 {
  53         init();
  54         init_aa();
  55 }
  56
  57 static void ffb_dd_points( GLcontext *ctx, GLuint first, GLuint last )
  58 {
  59         struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
  60         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
  61         ffb_vertex *fverts = fmesa->verts;
  62         int i;
  63
  64         if (VB->Elts == 0) {
  65                 for ( i = first ; i < last ; i++ ) {
  66                         if ( VB->ClipMask[i] == 0 ) {
  67                                 fmesa->draw_point( ctx, &fverts[i] );
  68                         }
  69                 }
  70         } else {
  71                 for ( i = first ; i < last ; i++ ) {
  72                         GLuint e = VB->Elts[i];
  73                         if ( VB->ClipMask[e] == 0 ) {
  74                                 fmesa->draw_point( ctx, &fverts[e] );
  75                         }
  76                 }
  77         }
  78 }
  79
  80 void ffbChoosePointState(GLcontext *ctx)
  81 {
  82         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
  83         TNLcontext *tnl = TNL_CONTEXT(ctx);
  84         GLuint flags = ctx->_TriangleCaps;
  85         GLuint ind = 0;
  86
  87         tnl->Driver.Render.Points = ffb_dd_points;
  88
  89         if (flags & DD_POINT_SMOOTH)
  90                 ind |= FFB_POINT_AA_BIT;
  91
  92         fmesa->draw_point = ffb_point_tab[ind];
  93 }