sp_context.c revision af69d88d 
1/**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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 <keithw@vmware.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_math.h"
37#include "util/u_memory.h"
38#include "util/u_pstipple.h"
39#include "util/u_inlines.h"
40#include "tgsi/tgsi_exec.h"
41#include "sp_clear.h"
42#include "sp_context.h"
43#include "sp_flush.h"
44#include "sp_prim_vbuf.h"
45#include "sp_state.h"
46#include "sp_surface.h"
47#include "sp_tile_cache.h"
48#include "sp_tex_tile_cache.h"
49#include "sp_texture.h"
50#include "sp_query.h"
51#include "sp_screen.h"
52#include "sp_tex_sample.h"
53
54
55static void
56softpipe_destroy( struct pipe_context *pipe )
57{
58   struct softpipe_context *softpipe = softpipe_context( pipe );
59   uint i, sh;
60
61#if DO_PSTIPPLE_IN_HELPER_MODULE
62   if (softpipe->pstipple.sampler)
63      pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
64
65   pipe_resource_reference(&softpipe->pstipple.texture, NULL);
66   pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
67#endif
68
69   if (softpipe->blitter) {
70      util_blitter_destroy(softpipe->blitter);
71   }
72
73   if (softpipe->draw)
74      draw_destroy( softpipe->draw );
75
76   if (softpipe->quad.shade)
77      softpipe->quad.shade->destroy( softpipe->quad.shade );
78
79   if (softpipe->quad.depth_test)
80      softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
81
82   if (softpipe->quad.blend)
83      softpipe->quad.blend->destroy( softpipe->quad.blend );
84
85   if (softpipe->quad.pstipple)
86      softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
87
88   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
89      sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
90      pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
91   }
92
93   sp_destroy_tile_cache(softpipe->zsbuf_cache);
94   pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
95
96   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
97      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
98         sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
99         pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
100      }
101   }
102
103   for (sh = 0; sh < Elements(softpipe->constants); sh++) {
104      for (i = 0; i < Elements(softpipe->constants[0]); i++) {
105         if (softpipe->constants[sh][i]) {
106            pipe_resource_reference(&softpipe->constants[sh][i], NULL);
107         }
108      }
109   }
110
111   for (i = 0; i < softpipe->num_vertex_buffers; i++) {
112      pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
113   }
114
115   tgsi_exec_machine_destroy(softpipe->fs_machine);
116
117   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
118      FREE(softpipe->tgsi.sampler[i]);
119   }
120
121   FREE( softpipe );
122}
123
124
125/**
126 * if (the texture is being used as a framebuffer surface)
127 *    return SP_REFERENCED_FOR_WRITE
128 * else if (the texture is a bound texture source)
129 *    return SP_REFERENCED_FOR_READ
130 * else
131 *    return SP_UNREFERENCED
132 */
133unsigned int
134softpipe_is_resource_referenced( struct pipe_context *pipe,
135                                 struct pipe_resource *texture,
136                                 unsigned level, int layer)
137{
138   struct softpipe_context *softpipe = softpipe_context( pipe );
139   unsigned i, sh;
140
141   if (texture->target == PIPE_BUFFER)
142      return SP_UNREFERENCED;
143
144   /* check if any of the bound drawing surfaces are this texture */
145   if (softpipe->dirty_render_cache) {
146      for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
147         if (softpipe->framebuffer.cbufs[i] &&
148             softpipe->framebuffer.cbufs[i]->texture == texture) {
149            return SP_REFERENCED_FOR_WRITE;
150         }
151      }
152      if (softpipe->framebuffer.zsbuf &&
153          softpipe->framebuffer.zsbuf->texture == texture) {
154         return SP_REFERENCED_FOR_WRITE;
155      }
156   }
157
158   /* check if any of the tex_cache textures are this texture */
159   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
160      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
161         if (softpipe->tex_cache[sh][i] &&
162             softpipe->tex_cache[sh][i]->texture == texture)
163            return SP_REFERENCED_FOR_READ;
164      }
165   }
166
167   return SP_UNREFERENCED;
168}
169
170
171
172
173static void
174softpipe_render_condition( struct pipe_context *pipe,
175                           struct pipe_query *query,
176                           boolean condition,
177                           uint mode )
178{
179   struct softpipe_context *softpipe = softpipe_context( pipe );
180
181   softpipe->render_cond_query = query;
182   softpipe->render_cond_mode = mode;
183   softpipe->render_cond_cond = condition;
184}
185
186
187
188struct pipe_context *
189softpipe_create_context( struct pipe_screen *screen,
190			 void *priv )
191{
192   struct softpipe_screen *sp_screen = softpipe_screen(screen);
193   struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
194   uint i, sh;
195
196   util_init_math();
197
198   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
199      softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
200   }
201
202   softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
203   softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
204
205   softpipe->pipe.screen = screen;
206   softpipe->pipe.destroy = softpipe_destroy;
207   softpipe->pipe.priv = priv;
208
209   /* state setters */
210   softpipe_init_blend_funcs(&softpipe->pipe);
211   softpipe_init_clip_funcs(&softpipe->pipe);
212   softpipe_init_query_funcs( softpipe );
213   softpipe_init_rasterizer_funcs(&softpipe->pipe);
214   softpipe_init_sampler_funcs(&softpipe->pipe);
215   softpipe_init_shader_funcs(&softpipe->pipe);
216   softpipe_init_streamout_funcs(&softpipe->pipe);
217   softpipe_init_texture_funcs( &softpipe->pipe );
218   softpipe_init_vertex_funcs(&softpipe->pipe);
219
220   softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
221
222   softpipe->pipe.draw_vbo = softpipe_draw_vbo;
223
224   softpipe->pipe.clear = softpipe_clear;
225   softpipe->pipe.flush = softpipe_flush_wrapped;
226
227   softpipe->pipe.render_condition = softpipe_render_condition;
228
229   /*
230    * Alloc caches for accessing drawing surfaces and textures.
231    * Must be before quad stage setup!
232    */
233   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
234      softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
235   softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
236
237   /* Allocate texture caches */
238   for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
239      for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
240         softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
241         if (!softpipe->tex_cache[sh][i])
242            goto fail;
243      }
244   }
245
246   softpipe->fs_machine = tgsi_exec_machine_create();
247
248   /* setup quad rendering stages */
249   softpipe->quad.shade = sp_quad_shade_stage(softpipe);
250   softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
251   softpipe->quad.blend = sp_quad_blend_stage(softpipe);
252   softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
253
254
255   /*
256    * Create drawing context and plug our rendering stage into it.
257    */
258   if (sp_screen->use_llvm)
259      softpipe->draw = draw_create(&softpipe->pipe);
260   else
261      softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
262   if (!softpipe->draw)
263      goto fail;
264
265   draw_texture_sampler(softpipe->draw,
266                        PIPE_SHADER_VERTEX,
267                        (struct tgsi_sampler *)
268                           softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
269
270   draw_texture_sampler(softpipe->draw,
271                        PIPE_SHADER_GEOMETRY,
272                        (struct tgsi_sampler *)
273                           softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
274
275   if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
276      softpipe->no_rast = TRUE;
277
278   softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
279   if (!softpipe->vbuf_backend)
280      goto fail;
281
282   softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
283   if (!softpipe->vbuf)
284      goto fail;
285
286   draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
287   draw_set_render(softpipe->draw, softpipe->vbuf_backend);
288
289   softpipe->blitter = util_blitter_create(&softpipe->pipe);
290   if (!softpipe->blitter) {
291      goto fail;
292   }
293
294   /* must be done before installing Draw stages */
295   util_blitter_cache_all_shaders(softpipe->blitter);
296
297   /* plug in AA line/point stages */
298   draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
299   draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
300
301   /* Do polygon stipple w/ texture map + frag prog? */
302#if DO_PSTIPPLE_IN_DRAW_MODULE
303   draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
304#endif
305
306   draw_wide_point_sprites(softpipe->draw, TRUE);
307
308   sp_init_surface_functions(softpipe);
309
310#if DO_PSTIPPLE_IN_HELPER_MODULE
311   /* create the polgon stipple sampler */
312   softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
313#endif
314
315   return &softpipe->pipe;
316
317 fail:
318   softpipe_destroy(&softpipe->pipe);
319   return NULL;
320}
321