lp_context.c revision e351e828698b133feb1f626c1d99d0fcb2ec1480 
1/**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * All Rights Reserved.
5 * Copyright 2008 VMware, Inc.  All rights reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * 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
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29/* Author:
30 *    Keith Whitwell <keith@tungstengraphics.com>
31 */
32
33#include "draw/draw_context.h"
34#include "draw/draw_vbuf.h"
35#include "pipe/p_defines.h"
36#include "util/u_inlines.h"
37#include "util/u_math.h"
38#include "util/u_memory.h"
39#include "lp_clear.h"
40#include "lp_context.h"
41#include "lp_flush.h"
42#include "lp_perf.h"
43#include "lp_state.h"
44#include "lp_surface.h"
45#include "lp_query.h"
46#include "lp_setup.h"
47
48static void llvmpipe_destroy( struct pipe_context *pipe )
49{
50   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
51   uint i;
52
53   lp_print_counters();
54
55   /* This will also destroy llvmpipe->setup:
56    */
57   if (llvmpipe->draw)
58      draw_destroy( llvmpipe->draw );
59
60   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
61      pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
62   }
63
64   pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
65
66   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
67      pipe_sampler_view_reference(&llvmpipe->fragment_sampler_views[i], NULL);
68   }
69
70   for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
71      pipe_sampler_view_reference(&llvmpipe->vertex_sampler_views[i], NULL);
72   }
73
74   for (i = 0; i < Elements(llvmpipe->constants); i++) {
75      if (llvmpipe->constants[i]) {
76         pipe_resource_reference(&llvmpipe->constants[i], NULL);
77      }
78   }
79
80   align_free( llvmpipe );
81}
82
83
84struct pipe_context *
85llvmpipe_create_context( struct pipe_screen *screen, void *priv )
86{
87   struct llvmpipe_context *llvmpipe;
88
89   llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
90   if (!llvmpipe)
91      return NULL;
92
93   util_init_math();
94
95   memset(llvmpipe, 0, sizeof *llvmpipe);
96
97   llvmpipe->pipe.winsys = screen->winsys;
98   llvmpipe->pipe.screen = screen;
99   llvmpipe->pipe.priv = priv;
100   llvmpipe->pipe.destroy = llvmpipe_destroy;
101
102   /* state setters */
103   llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
104   llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
105   llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
106
107   llvmpipe->pipe.create_fs_state = llvmpipe_create_fs_state;
108   llvmpipe->pipe.bind_fs_state   = llvmpipe_bind_fs_state;
109   llvmpipe->pipe.delete_fs_state = llvmpipe_delete_fs_state;
110
111   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
112   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
113   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
114
115   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
116   llvmpipe->pipe.set_constant_buffer = llvmpipe_set_constant_buffer;
117   llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
118   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
119   llvmpipe->pipe.set_scissor_state = llvmpipe_set_scissor_state;
120
121   llvmpipe->pipe.set_viewport_state = llvmpipe_set_viewport_state;
122
123   llvmpipe->pipe.draw_arrays = llvmpipe_draw_arrays;
124   llvmpipe->pipe.draw_elements = llvmpipe_draw_elements;
125   llvmpipe->pipe.draw_range_elements = llvmpipe_draw_range_elements;
126
127   llvmpipe->pipe.clear = llvmpipe_clear;
128   llvmpipe->pipe.flush = llvmpipe_flush;
129
130   llvmpipe_init_blend_funcs(llvmpipe);
131   llvmpipe_init_sampler_funcs(llvmpipe);
132   llvmpipe_init_query_funcs( llvmpipe );
133   llvmpipe_init_vertex_funcs(llvmpipe);
134   llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
135
136   /*
137    * Create drawing context and plug our rendering stage into it.
138    */
139   llvmpipe->draw = draw_create(&llvmpipe->pipe);
140   if (!llvmpipe->draw)
141      goto fail;
142
143   /* FIXME: devise alternative to draw_texture_samplers */
144
145   if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
146      llvmpipe->no_rast = TRUE;
147
148   llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
149                                      llvmpipe->draw );
150   if (!llvmpipe->setup)
151      goto fail;
152
153   /* plug in AA line/point stages */
154   draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
155   draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
156   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
157
158   /* convert points and lines into triangles: */
159   draw_wide_point_threshold(llvmpipe->draw, 0.0);
160   draw_wide_line_threshold(llvmpipe->draw, 0.0);
161
162#if USE_DRAW_STAGE_PSTIPPLE
163   /* Do polygon stipple w/ texture map + frag prog? */
164   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
165#endif
166
167   lp_init_surface_functions(llvmpipe);
168
169   lp_reset_counters();
170
171   return &llvmpipe->pipe;
172
173 fail:
174   llvmpipe_destroy(&llvmpipe->pipe);
175   return NULL;
176}
177
178