lp_context.c revision 275c4bd3643d773210780cb8d578ca84f2604684 
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_screen.h"
44#include "lp_state.h"
45#include "lp_surface.h"
46#include "lp_query.h"
47#include "lp_setup.h"
48
49
50
51
52
53static void llvmpipe_destroy( struct pipe_context *pipe )
54{
55   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
56   uint i;
57
58   lp_print_counters();
59
60   /* This will also destroy llvmpipe->setup:
61    */
62   if (llvmpipe->draw)
63      draw_destroy( llvmpipe->draw );
64
65   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
66      pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
67   }
68
69   pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
70
71   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
72      pipe_texture_reference(&llvmpipe->texture[i], NULL);
73   }
74
75   for (i = 0; i < PIPE_MAX_VERTEX_SAMPLERS; i++) {
76      pipe_texture_reference(&llvmpipe->vertex_textures[i], NULL);
77   }
78
79   for (i = 0; i < Elements(llvmpipe->constants); i++) {
80      if (llvmpipe->constants[i]) {
81         pipe_buffer_reference(&llvmpipe->constants[i], NULL);
82      }
83   }
84
85   align_free( llvmpipe );
86}
87
88static unsigned int
89llvmpipe_is_texture_referenced( struct pipe_context *pipe,
90				struct pipe_texture *texture,
91				unsigned face, unsigned level)
92{
93   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
94
95   return lp_setup_is_texture_referenced(llvmpipe->setup, texture);
96}
97
98static unsigned int
99llvmpipe_is_buffer_referenced( struct pipe_context *pipe,
100			       struct pipe_buffer *buf)
101{
102   return PIPE_UNREFERENCED;
103}
104
105struct pipe_context *
106llvmpipe_create_context( struct pipe_screen *screen, void *priv )
107{
108   struct llvmpipe_context *llvmpipe;
109   struct llvmpipe_screen *llvmscreen = llvmpipe_screen(screen);
110
111   llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
112   if (!llvmpipe)
113      return NULL;
114
115   util_init_math();
116
117   memset(llvmpipe, 0, sizeof *llvmpipe);
118
119   llvmpipe->pipe.winsys = screen->winsys;
120   llvmpipe->pipe.screen = screen;
121   llvmpipe->pipe.priv = priv;
122   llvmpipe->pipe.destroy = llvmpipe_destroy;
123
124   /* state setters */
125   llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
126   llvmpipe->pipe.bind_blend_state   = llvmpipe_bind_blend_state;
127   llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
128
129   llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
130   llvmpipe->pipe.bind_fragment_sampler_states  = llvmpipe_bind_sampler_states;
131   llvmpipe->pipe.bind_vertex_sampler_states  = llvmpipe_bind_vertex_sampler_states;
132   llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
133
134   llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
135   llvmpipe->pipe.bind_depth_stencil_alpha_state   = llvmpipe_bind_depth_stencil_state;
136   llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
137
138   llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
139   llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
140   llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
141
142   llvmpipe->pipe.create_fs_state = llvmpipe_create_fs_state;
143   llvmpipe->pipe.bind_fs_state   = llvmpipe_bind_fs_state;
144   llvmpipe->pipe.delete_fs_state = llvmpipe_delete_fs_state;
145
146   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
147   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
148   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
149
150   llvmpipe->pipe.create_vertex_elements_state = llvmpipe_create_vertex_elements_state;
151   llvmpipe->pipe.bind_vertex_elements_state = llvmpipe_bind_vertex_elements_state;
152   llvmpipe->pipe.delete_vertex_elements_state = llvmpipe_delete_vertex_elements_state;
153
154   llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
155   llvmpipe->pipe.set_stencil_ref = llvmpipe_set_stencil_ref;
156   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
157   llvmpipe->pipe.set_constant_buffer = llvmpipe_set_constant_buffer;
158   llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
159   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
160   llvmpipe->pipe.set_scissor_state = llvmpipe_set_scissor_state;
161   llvmpipe->pipe.set_fragment_sampler_textures = llvmpipe_set_sampler_textures;
162   llvmpipe->pipe.set_vertex_sampler_textures = llvmpipe_set_vertex_sampler_textures;
163   llvmpipe->pipe.set_viewport_state = llvmpipe_set_viewport_state;
164
165   llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
166
167   llvmpipe->pipe.draw_arrays = llvmpipe_draw_arrays;
168   llvmpipe->pipe.draw_elements = llvmpipe_draw_elements;
169   llvmpipe->pipe.draw_range_elements = llvmpipe_draw_range_elements;
170
171   llvmpipe->pipe.clear = llvmpipe_clear;
172   llvmpipe->pipe.flush = llvmpipe_flush;
173
174   llvmpipe->pipe.is_texture_referenced = llvmpipe_is_texture_referenced;
175   llvmpipe->pipe.is_buffer_referenced = llvmpipe_is_buffer_referenced;
176
177   llvmpipe_init_query_funcs( llvmpipe );
178   llvmpipe_init_context_texture_funcs( &llvmpipe->pipe );
179
180   /*
181    * Create drawing context and plug our rendering stage into it.
182    */
183   llvmpipe->draw = draw_create_with_llvm(llvmscreen->engine);
184   if (!llvmpipe->draw)
185      goto fail;
186
187   /* FIXME: devise alternative to draw_texture_samplers */
188
189   if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
190      llvmpipe->no_rast = TRUE;
191
192   llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
193                                      llvmpipe->draw );
194   if (!llvmpipe->setup)
195      goto fail;
196
197   /* plug in AA line/point stages */
198   draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
199   draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
200
201#if USE_DRAW_STAGE_PSTIPPLE
202   /* Do polygon stipple w/ texture map + frag prog? */
203   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
204#endif
205
206   lp_init_surface_functions(llvmpipe);
207
208   lp_reset_counters();
209
210   return &llvmpipe->pipe;
211
212 fail:
213   llvmpipe_destroy(&llvmpipe->pipe);
214   return NULL;
215}
216
217