src/mesa/pipe/softpipe/sp_context.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 /* Author:
  29  *    Keith Whitwell <keith@tungstengraphics.com>
  30  */
  31
  32 #include "main/imports.h"
  33 #include "main/macros.h"
  34 #include "pipe/draw/draw_context.h"
  35 #include "sp_context.h"
  36 #include "sp_clear.h"
  37 #include "sp_state.h"
  38 #include "sp_prim_setup.h"
  39
  40
  41 static void softpipe_destroy( struct pipe_context *pipe )
  42 {
  43    struct softpipe_context *softpipe = softpipe_context( pipe );
  44
  45    draw_destroy( softpipe->draw );
  46
  47    free( softpipe );
  48 }
  49
  50
  51 static void softpipe_draw_vb( struct pipe_context *pipe,
  52                              struct vertex_buffer *VB )
  53 {
  54    struct softpipe_context *softpipe = softpipe_context( pipe );
  55
  56    if (softpipe->dirty)
  57       softpipe_update_derived( softpipe );
  58
  59    draw_vb( softpipe->draw, VB );
  60 }
  61
  62
  63 static void softpipe_reset_occlusion_counter(struct pipe_context *pipe)
  64 {
  65    struct softpipe_context *softpipe = softpipe_context( pipe );
  66    softpipe->occlusion_counter = 0;
  67 }
  68
  69 /* XXX pipe param should be const */
  70 static GLuint softpipe_get_occlusion_counter(struct pipe_context *pipe)
  71 {
  72    struct softpipe_context *softpipe = softpipe_context( pipe );
  73    return softpipe->occlusion_counter;
  74 }
  75
  76
  77 struct pipe_context *softpipe_create( void )
  78 {
  79    struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
  80
  81    softpipe->pipe.destroy = softpipe_destroy;
  82    softpipe->pipe.set_alpha_test_state = softpipe_set_alpha_test_state;
  83    softpipe->pipe.set_blend_color = softpipe_set_blend_color;
  84    softpipe->pipe.set_blend_state = softpipe_set_blend_state;
  85    softpipe->pipe.set_clip_state = softpipe_set_clip_state;
  86    softpipe->pipe.set_clear_color_state = softpipe_set_clear_color_state;
  87    softpipe->pipe.set_depth_state = softpipe_set_depth_test_state;
  88    softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
  89    softpipe->pipe.set_fs_state = softpipe_set_fs_state;
  90    softpipe->pipe.set_polygon_stipple = softpipe_set_polygon_stipple;
  91    softpipe->pipe.set_sampler_state = softpipe_set_sampler_state;
  92    softpipe->pipe.set_scissor_state = softpipe_set_scissor_state;
  93    softpipe->pipe.set_setup_state = softpipe_set_setup_state;
  94    softpipe->pipe.set_stencil_state = softpipe_set_stencil_state;
  95    softpipe->pipe.set_texture_state = softpipe_set_texture_state;
  96    softpipe->pipe.set_viewport_state = softpipe_set_viewport_state;
  97    softpipe->pipe.draw_vb = softpipe_draw_vb;
  98    softpipe->pipe.clear = softpipe_clear;
  99    softpipe->pipe.reset_occlusion_counter = softpipe_reset_occlusion_counter;
 100    softpipe->pipe.get_occlusion_counter = softpipe_get_occlusion_counter;
 101
 102    softpipe->quad.polygon_stipple = sp_quad_polygon_stipple_stage(softpipe);
 103    softpipe->quad.shade = sp_quad_shade_stage(softpipe);
 104    softpipe->quad.alpha_test = sp_quad_alpha_test_stage(softpipe);
 105    softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
 106    softpipe->quad.stencil_test = sp_quad_stencil_test_stage(softpipe);
 107    softpipe->quad.occlusion = sp_quad_occlusion_stage(softpipe);
 108    softpipe->quad.coverage = sp_quad_coverage_stage(softpipe);
 109    softpipe->quad.bufloop = sp_quad_bufloop_stage(softpipe);
 110    softpipe->quad.blend = sp_quad_blend_stage(softpipe);
 111    softpipe->quad.colormask = sp_quad_colormask_stage(softpipe);
 112    softpipe->quad.output = sp_quad_output_stage(softpipe);
 113
 114    /*
 115     * Create drawing context and plug our rendering stage into it.
 116     */
 117    softpipe->draw = draw_create();
 118    draw_set_setup_stage(softpipe->draw, sp_draw_render_stage(softpipe));
 119
 120    /*
 121     * XXX we could plug GL selection/feedback into the drawing pipeline
 122     * by specifying a different setup/render stage.
 123     */
 124
 125    return &softpipe->pipe;
 126 }