sp_context.c revision 7ec681f3 
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 "util/u_upload_mgr.h"
41#include "tgsi/tgsi_exec.h"
42#include "sp_buffer.h"
43#include "sp_clear.h"
44#include "sp_context.h"
45#include "sp_flush.h"
46#include "sp_prim_vbuf.h"
47#include "sp_state.h"
48#include "sp_surface.h"
49#include "sp_tile_cache.h"
50#include "sp_tex_tile_cache.h"
51#include "sp_texture.h"
52#include "sp_query.h"
53#include "sp_screen.h"
54#include "sp_tex_sample.h"
55#include "sp_image.h"
56
57static void
58softpipe_destroy( struct pipe_context *pipe )
59{
60   struct softpipe_context *softpipe = softpipe_context( pipe );
61   uint i, sh;
62
63#if DO_PSTIPPLE_IN_HELPER_MODULE
64   if (softpipe->pstipple.sampler)
65      pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
66
67   pipe_resource_reference(&softpipe->pstipple.texture, NULL);
68   pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
69#endif
70
71   if (softpipe->blitter) {
72      util_blitter_destroy(softpipe->blitter);
73   }
74
75   if (softpipe->draw)
76      draw_destroy( softpipe->draw );
77
78   if (softpipe->quad.shade)
79      softpipe->quad.shade->destroy( softpipe->quad.shade );
80
81   if (softpipe->quad.depth_test)
82      softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
83
84   if (softpipe->quad.blend)
85      softpipe->quad.blend->destroy( softpipe->quad.blend );
86
87   if (softpipe->quad.pstipple)
88      softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
89
90   if (softpipe->pipe.stream_uploader)
91      u_upload_destroy(softpipe->pipe.stream_uploader);
92
93   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
94      sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
95      pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
96   }
97
98   sp_destroy_tile_cache(softpipe->zsbuf_cache);
99   pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
100
101   for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
102      for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
103         sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
104         pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
105      }
106   }
107
108   for (sh = 0; sh < ARRAY_SIZE(softpipe->constants); sh++) {
109      for (i = 0; i < ARRAY_SIZE(softpipe->constants[0]); i++) {
110         if (softpipe->constants[sh][i]) {
111            pipe_resource_reference(&softpipe->constants[sh][i], NULL);
112         }
113      }
114   }
115
116   for (i = 0; i < softpipe->num_vertex_buffers; i++) {
117      pipe_vertex_buffer_unreference(&softpipe->vertex_buffer[i]);
118   }
119
120   tgsi_exec_machine_destroy(softpipe->fs_machine);
121
122   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
123      FREE(softpipe->tgsi.sampler[i]);
124      FREE(softpipe->tgsi.image[i]);
125      FREE(softpipe->tgsi.buffer[i]);
126   }
127
128   FREE( softpipe );
129}
130
131
132/**
133 * if (the texture is being used as a framebuffer surface)
134 *    return SP_REFERENCED_FOR_WRITE
135 * else if (the texture is a bound texture source)
136 *    return SP_REFERENCED_FOR_READ
137 * else
138 *    return SP_UNREFERENCED
139 */
140unsigned int
141softpipe_is_resource_referenced( struct pipe_context *pipe,
142                                 struct pipe_resource *texture,
143                                 unsigned level, int layer)
144{
145   struct softpipe_context *softpipe = softpipe_context( pipe );
146   unsigned i, sh;
147
148   if (texture->target == PIPE_BUFFER)
149      return SP_UNREFERENCED;
150
151   /* check if any of the bound drawing surfaces are this texture */
152   if (softpipe->dirty_render_cache) {
153      for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
154         if (softpipe->framebuffer.cbufs[i] &&
155             softpipe->framebuffer.cbufs[i]->texture == texture) {
156            return SP_REFERENCED_FOR_WRITE;
157         }
158      }
159      if (softpipe->framebuffer.zsbuf &&
160          softpipe->framebuffer.zsbuf->texture == texture) {
161         return SP_REFERENCED_FOR_WRITE;
162      }
163   }
164
165   /* check if any of the tex_cache textures are this texture */
166   for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
167      for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
168         if (softpipe->tex_cache[sh][i] &&
169             softpipe->tex_cache[sh][i]->texture == texture)
170            return SP_REFERENCED_FOR_READ;
171      }
172   }
173
174   return SP_UNREFERENCED;
175}
176
177
178
179
180static void
181softpipe_render_condition(struct pipe_context *pipe,
182                          struct pipe_query *query,
183                          bool condition,
184                          enum pipe_render_cond_flag mode)
185{
186   struct softpipe_context *softpipe = softpipe_context( pipe );
187
188   softpipe->render_cond_query = query;
189   softpipe->render_cond_mode = mode;
190   softpipe->render_cond_cond = condition;
191}
192
193
194static void
195softpipe_set_debug_callback(struct pipe_context *pipe,
196                            const struct pipe_debug_callback *cb)
197{
198   struct softpipe_context *softpipe = softpipe_context(pipe);
199
200   if (cb)
201      softpipe->debug = *cb;
202   else
203      memset(&softpipe->debug, 0, sizeof(softpipe->debug));
204}
205
206
207struct pipe_context *
208softpipe_create_context(struct pipe_screen *screen,
209			void *priv, unsigned flags)
210{
211   struct softpipe_screen *sp_screen = softpipe_screen(screen);
212   struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
213   uint i, sh;
214
215   util_init_math();
216
217   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
218      softpipe->tgsi.sampler[i] = sp_create_tgsi_sampler();
219   }
220
221   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
222      softpipe->tgsi.image[i] = sp_create_tgsi_image();
223   }
224
225   for (i = 0; i < PIPE_SHADER_TYPES; i++) {
226      softpipe->tgsi.buffer[i] = sp_create_tgsi_buffer();
227   }
228
229   softpipe->pipe.screen = screen;
230   softpipe->pipe.destroy = softpipe_destroy;
231   softpipe->pipe.priv = priv;
232
233   /* state setters */
234   softpipe_init_blend_funcs(&softpipe->pipe);
235   softpipe_init_clip_funcs(&softpipe->pipe);
236   softpipe_init_query_funcs( softpipe );
237   softpipe_init_rasterizer_funcs(&softpipe->pipe);
238   softpipe_init_sampler_funcs(&softpipe->pipe);
239   softpipe_init_shader_funcs(&softpipe->pipe);
240   softpipe_init_streamout_funcs(&softpipe->pipe);
241   softpipe_init_texture_funcs( &softpipe->pipe );
242   softpipe_init_vertex_funcs(&softpipe->pipe);
243   softpipe_init_image_funcs(&softpipe->pipe);
244
245   softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
246   softpipe->pipe.set_debug_callback = softpipe_set_debug_callback;
247
248   softpipe->pipe.draw_vbo = softpipe_draw_vbo;
249
250   softpipe->pipe.launch_grid = softpipe_launch_grid;
251
252   softpipe->pipe.clear = softpipe_clear;
253   softpipe->pipe.flush = softpipe_flush_wrapped;
254   softpipe->pipe.texture_barrier = softpipe_texture_barrier;
255   softpipe->pipe.memory_barrier = softpipe_memory_barrier;
256   softpipe->pipe.render_condition = softpipe_render_condition;
257
258   /*
259    * Alloc caches for accessing drawing surfaces and textures.
260    * Must be before quad stage setup!
261    */
262   for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
263      softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
264   softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
265
266   /* Allocate texture caches */
267   for (sh = 0; sh < ARRAY_SIZE(softpipe->tex_cache); sh++) {
268      for (i = 0; i < ARRAY_SIZE(softpipe->tex_cache[0]); i++) {
269         softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
270         if (!softpipe->tex_cache[sh][i])
271            goto fail;
272      }
273   }
274
275   softpipe->fs_machine = tgsi_exec_machine_create(PIPE_SHADER_FRAGMENT);
276
277   /* setup quad rendering stages */
278   softpipe->quad.shade = sp_quad_shade_stage(softpipe);
279   softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
280   softpipe->quad.blend = sp_quad_blend_stage(softpipe);
281   softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
282
283   softpipe->pipe.stream_uploader = u_upload_create_default(&softpipe->pipe);
284   if (!softpipe->pipe.stream_uploader)
285      goto fail;
286   softpipe->pipe.const_uploader = softpipe->pipe.stream_uploader;
287
288   /*
289    * Create drawing context and plug our rendering stage into it.
290    */
291   if (sp_screen->use_llvm)
292      softpipe->draw = draw_create(&softpipe->pipe);
293   else
294      softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
295   if (!softpipe->draw)
296      goto fail;
297
298   draw_texture_sampler(softpipe->draw,
299                        PIPE_SHADER_VERTEX,
300                        (struct tgsi_sampler *)
301                           softpipe->tgsi.sampler[PIPE_SHADER_VERTEX]);
302
303   draw_texture_sampler(softpipe->draw,
304                        PIPE_SHADER_GEOMETRY,
305                        (struct tgsi_sampler *)
306                           softpipe->tgsi.sampler[PIPE_SHADER_GEOMETRY]);
307
308   draw_image(softpipe->draw,
309              PIPE_SHADER_VERTEX,
310              (struct tgsi_image *)
311              softpipe->tgsi.image[PIPE_SHADER_VERTEX]);
312
313   draw_image(softpipe->draw,
314              PIPE_SHADER_GEOMETRY,
315              (struct tgsi_image *)
316              softpipe->tgsi.image[PIPE_SHADER_GEOMETRY]);
317
318   draw_buffer(softpipe->draw,
319              PIPE_SHADER_VERTEX,
320              (struct tgsi_buffer *)
321              softpipe->tgsi.buffer[PIPE_SHADER_VERTEX]);
322
323   draw_buffer(softpipe->draw,
324              PIPE_SHADER_GEOMETRY,
325              (struct tgsi_buffer *)
326              softpipe->tgsi.buffer[PIPE_SHADER_GEOMETRY]);
327
328   softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
329   if (!softpipe->vbuf_backend)
330      goto fail;
331
332   softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
333   if (!softpipe->vbuf)
334      goto fail;
335
336   draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
337   draw_set_render(softpipe->draw, softpipe->vbuf_backend);
338
339   softpipe->blitter = util_blitter_create(&softpipe->pipe);
340   if (!softpipe->blitter) {
341      goto fail;
342   }
343
344   /* must be done before installing Draw stages */
345   util_blitter_cache_all_shaders(softpipe->blitter);
346
347   /* plug in AA line/point stages */
348   draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
349   draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
350
351   /* Do polygon stipple w/ texture map + frag prog? */
352#if DO_PSTIPPLE_IN_DRAW_MODULE
353   draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
354#endif
355
356   draw_wide_point_sprites(softpipe->draw, TRUE);
357
358   sp_init_surface_functions(softpipe);
359
360#if DO_PSTIPPLE_IN_HELPER_MODULE
361   /* create the polygon stipple sampler */
362   softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
363#endif
364
365   return &softpipe->pipe;
366
367 fail:
368   softpipe_destroy(&softpipe->pipe);
369   return NULL;
370}
371