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 "util/u_simple_list.h"
40#include "lp_clear.h"
41#include "lp_context.h"
42#include "lp_flush.h"
43#include "lp_perf.h"
44#include "lp_state.h"
45#include "lp_surface.h"
46#include "lp_query.h"
47#include "lp_setup.h"
48
49
50/** shared by all contexts */
51unsigned llvmpipe_variant_count;
52
53
54static void llvmpipe_destroy( struct pipe_context *pipe )
55{
56   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
57   uint i, j;
58
59   lp_print_counters();
60
61   /* This will also destroy llvmpipe->setup:
62    */
63   if (llvmpipe->draw)
64      draw_destroy( llvmpipe->draw );
65
66   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
67      pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
68   }
69
70   pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
71
72   for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
73      pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
74   }
75
76   for (i = 0; i < Elements(llvmpipe->sampler_views[0]); i++) {
77      pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
78   }
79
80   for (i = 0; i < Elements(llvmpipe->constants); i++) {
81      for (j = 0; j < Elements(llvmpipe->constants[i]); j++) {
82         pipe_resource_reference(&llvmpipe->constants[i][j], NULL);
83      }
84   }
85
86   for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
87      pipe_resource_reference(&llvmpipe->vertex_buffer[i].buffer, NULL);
88   }
89
90   lp_delete_setup_variants(llvmpipe);
91
92   align_free( llvmpipe );
93}
94
95static void
96do_flush( struct pipe_context *pipe,
97          struct pipe_fence_handle **fence)
98{
99   llvmpipe_flush(pipe, fence, __FUNCTION__);
100}
101
102
103static void
104llvmpipe_render_condition ( struct pipe_context *pipe,
105                            struct pipe_query *query,
106                            uint mode )
107{
108   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
109
110   llvmpipe->render_cond_query = query;
111   llvmpipe->render_cond_mode = mode;
112}
113
114struct pipe_context *
115llvmpipe_create_context( struct pipe_screen *screen, void *priv )
116{
117   struct llvmpipe_context *llvmpipe;
118
119   llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
120   if (!llvmpipe)
121      return NULL;
122
123   util_init_math();
124
125   memset(llvmpipe, 0, sizeof *llvmpipe);
126
127   make_empty_list(&llvmpipe->fs_variants_list);
128
129   make_empty_list(&llvmpipe->setup_variants_list);
130
131
132   llvmpipe->pipe.screen = screen;
133   llvmpipe->pipe.priv = priv;
134
135   /* Init the pipe context methods */
136   llvmpipe->pipe.destroy = llvmpipe_destroy;
137   llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
138   llvmpipe->pipe.clear = llvmpipe_clear;
139   llvmpipe->pipe.flush = do_flush;
140
141   llvmpipe->pipe.render_condition = llvmpipe_render_condition;
142
143   llvmpipe_init_blend_funcs(llvmpipe);
144   llvmpipe_init_clip_funcs(llvmpipe);
145   llvmpipe_init_draw_funcs(llvmpipe);
146   llvmpipe_init_sampler_funcs(llvmpipe);
147   llvmpipe_init_query_funcs( llvmpipe );
148   llvmpipe_init_vertex_funcs(llvmpipe);
149   llvmpipe_init_so_funcs(llvmpipe);
150   llvmpipe_init_fs_funcs(llvmpipe);
151   llvmpipe_init_vs_funcs(llvmpipe);
152   llvmpipe_init_gs_funcs(llvmpipe);
153   llvmpipe_init_rasterizer_funcs(llvmpipe);
154   llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
155   llvmpipe_init_surface_functions(llvmpipe);
156
157   /*
158    * Create drawing context and plug our rendering stage into it.
159    */
160   llvmpipe->draw = draw_create(&llvmpipe->pipe);
161   if (!llvmpipe->draw)
162      goto fail;
163
164   /* FIXME: devise alternative to draw_texture_samplers */
165
166   llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
167                                      llvmpipe->draw );
168   if (!llvmpipe->setup)
169      goto fail;
170
171   /* plug in AA line/point stages */
172   draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
173   draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
174   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
175
176   /* convert points and lines into triangles:
177    * (otherwise, draw points and lines natively)
178    */
179   draw_wide_point_sprites(llvmpipe->draw, FALSE);
180   draw_enable_point_sprites(llvmpipe->draw, FALSE);
181   draw_wide_point_threshold(llvmpipe->draw, 10000.0);
182   draw_wide_line_threshold(llvmpipe->draw, 10000.0);
183
184   lp_reset_counters();
185
186   return &llvmpipe->pipe;
187
188 fail:
189   llvmpipe_destroy(&llvmpipe->pipe);
190   return NULL;
191}
192
193