lp_context.c revision 58c991a64017c3fc0bcfa9097f8ffcf8deeb8597 
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
48
49
50
51
52static void llvmpipe_destroy( struct pipe_context *pipe )
53{
54   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
55   uint i;
56
57   lp_print_counters();
58
59   /* This will also destroy llvmpipe->setup:
60    */
61   if (llvmpipe->draw)
62      draw_destroy( llvmpipe->draw );
63
64   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
65      pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
66   }
67
68   pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
69
70   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
71      pipe_texture_reference(&llvmpipe->texture[i], NULL);
72   }
73
74   for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
75      pipe_texture_reference(&llvmpipe->vertex_textures[i], NULL);
76   }
77
78   for (i = 0; i < Elements(llvmpipe->constants); i++) {
79      if (llvmpipe->constants[i]) {
80         pipe_buffer_reference(&llvmpipe->constants[i], NULL);
81      }
82   }
83
84   align_free( llvmpipe );
85}
86
87static unsigned int
88llvmpipe_is_texture_referenced( struct pipe_context *pipe,
89				struct pipe_texture *texture,
90				unsigned face, unsigned level)
91{
92   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
93
94   return lp_setup_is_texture_referenced(llvmpipe->setup, texture);
95}
96
97static unsigned int
98llvmpipe_is_buffer_referenced( struct pipe_context *pipe,
99			       struct pipe_buffer *buf)
100{
101   return PIPE_UNREFERENCED;
102}
103
104struct pipe_context *
105llvmpipe_create_context( struct pipe_screen *screen, void *priv )
106{
107   struct llvmpipe_context *llvmpipe;
108
109   llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
110   if (!llvmpipe)
111      return NULL;
112
113   util_init_math();
114
115   memset(llvmpipe, 0, sizeof *llvmpipe);
116
117   llvmpipe->pipe.winsys = screen->winsys;
118   llvmpipe->pipe.screen = screen;
119   llvmpipe->pipe.priv = priv;
120   llvmpipe->pipe.destroy = llvmpipe_destroy;
121
122   /* state setters */
123   llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
124   llvmpipe->pipe.bind_blend_state   = llvmpipe_bind_blend_state;
125   llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
126
127   llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
128   llvmpipe->pipe.bind_fragment_sampler_states  = llvmpipe_bind_sampler_states;
129   llvmpipe->pipe.bind_vertex_sampler_states  = llvmpipe_bind_vertex_sampler_states;
130   llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
131
132   llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
133   llvmpipe->pipe.bind_depth_stencil_alpha_state   = llvmpipe_bind_depth_stencil_state;
134   llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
135
136   llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
137   llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
138   llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
139
140   llvmpipe->pipe.create_fs_state = llvmpipe_create_fs_state;
141   llvmpipe->pipe.bind_fs_state   = llvmpipe_bind_fs_state;
142   llvmpipe->pipe.delete_fs_state = llvmpipe_delete_fs_state;
143
144   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
145   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
146   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
147
148   llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
149   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
150   llvmpipe->pipe.set_constant_buffer = llvmpipe_set_constant_buffer;
151   llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
152   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
153   llvmpipe->pipe.set_scissor_state = llvmpipe_set_scissor_state;
154   llvmpipe->pipe.set_fragment_sampler_textures = llvmpipe_set_sampler_textures;
155   llvmpipe->pipe.set_vertex_sampler_textures = llvmpipe_set_vertex_sampler_textures;
156   llvmpipe->pipe.set_viewport_state = llvmpipe_set_viewport_state;
157
158   llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
159   llvmpipe->pipe.set_vertex_elements = llvmpipe_set_vertex_elements;
160
161   llvmpipe->pipe.draw_arrays = llvmpipe_draw_arrays;
162   llvmpipe->pipe.draw_elements = llvmpipe_draw_elements;
163   llvmpipe->pipe.draw_range_elements = llvmpipe_draw_range_elements;
164
165   llvmpipe->pipe.clear = llvmpipe_clear;
166   llvmpipe->pipe.flush = llvmpipe_flush;
167
168   llvmpipe->pipe.is_texture_referenced = llvmpipe_is_texture_referenced;
169   llvmpipe->pipe.is_buffer_referenced = llvmpipe_is_buffer_referenced;
170
171   llvmpipe_init_query_funcs( llvmpipe );
172
173   /*
174    * Create drawing context and plug our rendering stage into it.
175    */
176   llvmpipe->draw = draw_create();
177   if (!llvmpipe->draw)
178      goto fail;
179
180   /* FIXME: devise alternative to draw_texture_samplers */
181
182   if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
183      llvmpipe->no_rast = TRUE;
184
185   llvmpipe->setup = lp_setup_create( screen,
186                                      llvmpipe->draw );
187   if (!llvmpipe->setup)
188      goto fail;
189
190   /* plug in AA line/point stages */
191   draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
192   draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
193
194#if USE_DRAW_STAGE_PSTIPPLE
195   /* Do polygon stipple w/ texture map + frag prog? */
196   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
197#endif
198
199   lp_init_surface_functions(llvmpipe);
200
201   lp_reset_counters();
202
203   return &llvmpipe->pipe;
204
205 fail:
206   llvmpipe_destroy(&llvmpipe->pipe);
207   return NULL;
208}
209
210