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
  34
  35 #undef FFB_POINT_TRACE
  36
  37 #define FFB_POINT_AA_BIT        0x01
  38
  39 static ffb_point_func ffb_point_tab[0x08];
  40
  41 #define IND (0)
  42 #define TAG(x) x
  43 #include "ffb_pointtmp.h"
  44
  45 #define IND (FFB_POINT_AA_BIT)
  46 #define TAG(x) x##_aa
  47 #include "ffb_pointtmp.h"
  48
  49 void ffbDDPointfuncInit(void)
  50 {
  51         init();
  52         init_aa();
  53 }
  54
  55 static void ffb_dd_points( GLcontext *ctx, GLuint first, GLuint last )
  56 {
  57         struct vertex_buffer *VB = &TNL_CONTEXT( ctx )->vb;
  58         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
  59         ffb_vertex *fverts = fmesa->verts;
  60         int i;
  61
  62         if (VB->Elts == 0) {
  63                 for ( i = first ; i < last ; i++ ) {
  64                         if ( VB->ClipMask[i] == 0 ) {
  65                                 fmesa->draw_point( ctx, &fverts[i] );
  66                         }
  67                 }
  68         } else {
  69                 for ( i = first ; i < last ; i++ ) {
  70                         GLuint e = VB->Elts[i];
  71                         if ( VB->ClipMask[e] == 0 ) {
  72                                 fmesa->draw_point( ctx, &fverts[e] );
  73                         }
  74                 }
  75         }
  76 }
  77
  78 void ffbChoosePointState(GLcontext *ctx)
  79 {
  80         ffbContextPtr fmesa = FFB_CONTEXT(ctx);
  81         TNLcontext *tnl = TNL_CONTEXT(ctx);
  82         GLuint flags = ctx->_TriangleCaps;
  83         GLuint ind = 0;
  84
  85         tnl->Driver.Render.Points = ffb_dd_points;
  86
  87         if (flags & DD_POINT_SMOOTH)
  88                 ind |= FFB_POINT_AA_BIT;
  89
  90         fmesa->draw_point = ffb_point_tab[ind];
  91 }