src/mesa/state_tracker/st_draw.c

   1 /**************************************************************************
   2  *
   3  * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
   4  * All Rights Reserved.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the
   8  * "Software"), to deal in the Software without restriction, including
   9  * without limitation the rights to use, copy, modify, merge, publish,
  10  * distribute, sub license, and/or sell copies of the Software, and to
  11  * permit persons to whom the Software is furnished to do so, subject to
  12  * the following conditions:
  13  *
  14  * The above copyright notice and this permission notice (including the
  15  * next paragraph) shall be included in all copies or substantial portions
  16  * of the Software.
  17  *
  18  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  19  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  20  * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
  21  * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
  22  * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  23  * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  24  * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  25  *
  26  **************************************************************************/
  27
  28  /*
  29   * Authors:
  30   *   Keith Whitwell <keith@tungstengraphics.com>
  31   */
  32
  33 #include "imports.h"
  34
  35 #include "tnl/t_context.h"
  36 #include "tnl/t_pipeline.h"
  37
  38 #include "st_context.h"
  39 #include "st_atom.h"
  40 #include "st_draw.h"
  41 #include "pipe/p_context.h"
  42
  43 /*
  44  * TNL stage which feeds into the above.
  45  *
  46  * XXX: this needs to go into each driver using this code, because we
  47  * cannot make the leap from ctx->draw_context in this file.  The
  48  * driver needs to customize tnl anyway, so this isn't a big deal.
  49  */
  50 static GLboolean draw( GLcontext * ctx, struct tnl_pipeline_stage *stage )
  51 {
  52    struct st_context *st = st_context(ctx);
  53    struct vertex_buffer *VB = &TNL_CONTEXT(ctx)->vb;
  54
  55    /* Validate driver and pipe state:
  56     */
  57    st_validate_state( st );
  58
  59    /* Call into the new draw code to handle the VB:
  60     */
  61    st->pipe->draw_vb( st->pipe, VB );
  62
  63    /* Finished
  64     */
  65    return GL_FALSE;
  66 }
  67
  68 const struct tnl_pipeline_stage st_draw = {
  69    "check state and draw",
  70    NULL,
  71    NULL,
  72    NULL,
  73    NULL,
  74    draw
  75 };
  76
  77 static const struct tnl_pipeline_stage *st_pipeline[] = {
  78    &_tnl_vertex_transform_stage,
  79    &_tnl_vertex_cull_stage,
  80    &_tnl_normal_transform_stage,
  81    &_tnl_lighting_stage,
  82    &_tnl_fog_coordinate_stage,
  83    &_tnl_texgen_stage,
  84    &_tnl_texture_transform_stage,
  85    &_tnl_point_attenuation_stage,
  86    &_tnl_vertex_program_stage,
  87    &st_draw,     /* ADD: escape to pipe */
  88    0,
  89 };
  90
  91 /* This is all a hack to keep using tnl until we have vertex programs
  92  * up and running.
  93  */
  94 void st_init_draw( struct st_context *st )
  95 {
  96    GLcontext *ctx = st->ctx;
  97
  98    _tnl_destroy_pipeline( ctx );
  99    _tnl_install_pipeline( ctx, st_pipeline );
 100 }
 101
 102
 103 void st_destroy_draw( struct st_context *st )
 104 {
 105    /* Nothing to do.
 106     */
 107 }
 108
 109