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