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
57 static void
softpipe_destroy(struct pipe_context * pipe)58 softpipe_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 */
140 unsigned int
softpipe_is_resource_referenced(struct pipe_context * pipe,struct pipe_resource * texture,unsigned level,int layer)141 softpipe_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
180 static void
softpipe_render_condition(struct pipe_context * pipe,struct pipe_query * query,bool condition,enum pipe_render_cond_flag mode)181 softpipe_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
194 static void
softpipe_set_debug_callback(struct pipe_context * pipe,const struct pipe_debug_callback * cb)195 softpipe_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
207 struct pipe_context *
softpipe_create_context(struct pipe_screen * screen,void * priv,unsigned flags)208 softpipe_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 polgon 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