lp_context.c revision 5ce0380a0f585b9e1fb616b749f7fd18a8afada1 
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 "pipe/p_defines.h"
35#include "util/u_math.h"
36#include "util/u_memory.h"
37#include "lp_clear.h"
38#include "lp_context.h"
39#include "lp_flush.h"
40#include "lp_state.h"
41#include "lp_surface.h"
42#include "lp_texture.h"
43#include "lp_winsys.h"
44#include "lp_query.h"
45#include "lp_setup.h"
46
47
48
49
50
51static void llvmpipe_destroy( struct pipe_context *pipe )
52{
53   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
54   uint i;
55
56   if (llvmpipe->draw)
57      draw_destroy( llvmpipe->draw );
58
59   if (llvmpipe->setup)
60      lp_setup_destroy( llvmpipe->setup );
61
62   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
63      pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
64   }
65
66   pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
67
68   for (i = 0; i < PIPE_MAX_SAMPLERS; i++) {
69      pipe_texture_reference(&llvmpipe->texture[i], NULL);
70   }
71
72   for (i = 0; i < Elements(llvmpipe->constants); i++) {
73      if (llvmpipe->constants[i].buffer) {
74         pipe_buffer_reference(&llvmpipe->constants[i].buffer, NULL);
75      }
76   }
77
78   align_free( llvmpipe );
79}
80
81static unsigned int
82llvmpipe_is_texture_referenced( struct pipe_context *pipe,
83				struct pipe_texture *texture,
84				unsigned face, unsigned level)
85{
86   struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
87
88   return lp_setup_is_texture_referenced(llvmpipe->setup, texture);
89}
90
91static unsigned int
92llvmpipe_is_buffer_referenced( struct pipe_context *pipe,
93			       struct pipe_buffer *buf)
94{
95   return PIPE_UNREFERENCED;
96}
97
98struct pipe_context *
99llvmpipe_create( struct pipe_screen *screen )
100{
101   struct llvmpipe_context *llvmpipe;
102
103   llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
104   if (!llvmpipe)
105      return NULL;
106
107   util_init_math();
108
109   memset(llvmpipe, 0, sizeof *llvmpipe);
110
111   llvmpipe->pipe.winsys = screen->winsys;
112   llvmpipe->pipe.screen = screen;
113   llvmpipe->pipe.destroy = llvmpipe_destroy;
114
115   /* state setters */
116   llvmpipe->pipe.create_blend_state = llvmpipe_create_blend_state;
117   llvmpipe->pipe.bind_blend_state   = llvmpipe_bind_blend_state;
118   llvmpipe->pipe.delete_blend_state = llvmpipe_delete_blend_state;
119
120   llvmpipe->pipe.create_sampler_state = llvmpipe_create_sampler_state;
121   llvmpipe->pipe.bind_sampler_states  = llvmpipe_bind_sampler_states;
122   llvmpipe->pipe.delete_sampler_state = llvmpipe_delete_sampler_state;
123
124   llvmpipe->pipe.create_depth_stencil_alpha_state = llvmpipe_create_depth_stencil_state;
125   llvmpipe->pipe.bind_depth_stencil_alpha_state   = llvmpipe_bind_depth_stencil_state;
126   llvmpipe->pipe.delete_depth_stencil_alpha_state = llvmpipe_delete_depth_stencil_state;
127
128   llvmpipe->pipe.create_rasterizer_state = llvmpipe_create_rasterizer_state;
129   llvmpipe->pipe.bind_rasterizer_state   = llvmpipe_bind_rasterizer_state;
130   llvmpipe->pipe.delete_rasterizer_state = llvmpipe_delete_rasterizer_state;
131
132   llvmpipe->pipe.create_fs_state = llvmpipe_create_fs_state;
133   llvmpipe->pipe.bind_fs_state   = llvmpipe_bind_fs_state;
134   llvmpipe->pipe.delete_fs_state = llvmpipe_delete_fs_state;
135
136   llvmpipe->pipe.create_vs_state = llvmpipe_create_vs_state;
137   llvmpipe->pipe.bind_vs_state   = llvmpipe_bind_vs_state;
138   llvmpipe->pipe.delete_vs_state = llvmpipe_delete_vs_state;
139
140   llvmpipe->pipe.set_blend_color = llvmpipe_set_blend_color;
141   llvmpipe->pipe.set_clip_state = llvmpipe_set_clip_state;
142   llvmpipe->pipe.set_constant_buffer = llvmpipe_set_constant_buffer;
143   llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
144   llvmpipe->pipe.set_polygon_stipple = llvmpipe_set_polygon_stipple;
145   llvmpipe->pipe.set_scissor_state = llvmpipe_set_scissor_state;
146   llvmpipe->pipe.set_sampler_textures = llvmpipe_set_sampler_textures;
147   llvmpipe->pipe.set_viewport_state = llvmpipe_set_viewport_state;
148
149   llvmpipe->pipe.set_vertex_buffers = llvmpipe_set_vertex_buffers;
150   llvmpipe->pipe.set_vertex_elements = llvmpipe_set_vertex_elements;
151
152   llvmpipe->pipe.draw_arrays = llvmpipe_draw_arrays;
153   llvmpipe->pipe.draw_elements = llvmpipe_draw_elements;
154   llvmpipe->pipe.draw_range_elements = llvmpipe_draw_range_elements;
155   llvmpipe->pipe.set_edgeflags = llvmpipe_set_edgeflags;
156
157
158   llvmpipe->pipe.clear = llvmpipe_clear;
159   llvmpipe->pipe.flush = llvmpipe_flush;
160
161   llvmpipe->pipe.is_texture_referenced = llvmpipe_is_texture_referenced;
162   llvmpipe->pipe.is_buffer_referenced = llvmpipe_is_buffer_referenced;
163
164   llvmpipe_init_query_funcs( llvmpipe );
165   llvmpipe_init_texture_funcs( llvmpipe );
166
167   /*
168    * Create drawing context and plug our rendering stage into it.
169    */
170   llvmpipe->draw = draw_create();
171   if (!llvmpipe->draw)
172      goto fail;
173
174   /* FIXME: vertex sampler state
175    */
176
177   if (debug_get_bool_option( "LP_NO_RAST", FALSE ))
178      llvmpipe->no_rast = TRUE;
179
180   llvmpipe->setup = lp_setup_create( screen,
181                                      llvmpipe->draw );
182   if (!llvmpipe->setup)
183      goto fail;
184
185   /* plug in AA line/point stages */
186   draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
187   draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
188
189#if USE_DRAW_STAGE_PSTIPPLE
190   /* Do polygon stipple w/ texture map + frag prog? */
191   draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
192#endif
193
194   lp_init_surface_functions(llvmpipe);
195
196   return &llvmpipe->pipe;
197
198 fail:
199   llvmpipe_destroy(&llvmpipe->pipe);
200   return NULL;
201}
202
203