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 "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 "vl/vl_decoder.h"
42 #include "vl/vl_video_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
55
56 /**
57 * Map any drawing surfaces which aren't already mapped
58 */
59 void
softpipe_map_transfers(struct softpipe_context * sp)60 softpipe_map_transfers(struct softpipe_context *sp)
61 {
62 unsigned i;
63
64 for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
65 sp_tile_cache_map_transfers(sp->cbuf_cache[i]);
66 }
67
68 sp_tile_cache_map_transfers(sp->zsbuf_cache);
69 }
70
71
72 /**
73 * Unmap any mapped drawing surfaces
74 */
75 void
softpipe_unmap_transfers(struct softpipe_context * sp)76 softpipe_unmap_transfers(struct softpipe_context *sp)
77 {
78 uint i;
79
80 for (i = 0; i < sp->framebuffer.nr_cbufs; i++) {
81 sp_tile_cache_unmap_transfers(sp->cbuf_cache[i]);
82 }
83
84 sp_tile_cache_unmap_transfers(sp->zsbuf_cache);
85 }
86
87
88 static void
softpipe_destroy(struct pipe_context * pipe)89 softpipe_destroy( struct pipe_context *pipe )
90 {
91 struct softpipe_context *softpipe = softpipe_context( pipe );
92 uint i, sh;
93
94 #if DO_PSTIPPLE_IN_HELPER_MODULE
95 if (softpipe->pstipple.sampler)
96 pipe->delete_sampler_state(pipe, softpipe->pstipple.sampler);
97
98 pipe_resource_reference(&softpipe->pstipple.texture, NULL);
99 pipe_sampler_view_reference(&softpipe->pstipple.sampler_view, NULL);
100 #endif
101
102 if (softpipe->draw)
103 draw_destroy( softpipe->draw );
104
105 if (softpipe->quad.shade)
106 softpipe->quad.shade->destroy( softpipe->quad.shade );
107
108 if (softpipe->quad.depth_test)
109 softpipe->quad.depth_test->destroy( softpipe->quad.depth_test );
110
111 if (softpipe->quad.blend)
112 softpipe->quad.blend->destroy( softpipe->quad.blend );
113
114 if (softpipe->quad.pstipple)
115 softpipe->quad.pstipple->destroy( softpipe->quad.pstipple );
116
117 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
118 sp_destroy_tile_cache(softpipe->cbuf_cache[i]);
119 pipe_surface_reference(&softpipe->framebuffer.cbufs[i], NULL);
120 }
121
122 sp_destroy_tile_cache(softpipe->zsbuf_cache);
123 pipe_surface_reference(&softpipe->framebuffer.zsbuf, NULL);
124
125 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
126 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
127 sp_destroy_tex_tile_cache(softpipe->tex_cache[sh][i]);
128 pipe_sampler_view_reference(&softpipe->sampler_views[sh][i], NULL);
129 }
130 }
131
132 for (sh = 0; sh < Elements(softpipe->constants); sh++) {
133 for (i = 0; i < Elements(softpipe->constants[0]); i++) {
134 if (softpipe->constants[sh][i]) {
135 pipe_resource_reference(&softpipe->constants[sh][i], NULL);
136 }
137 }
138 }
139
140 for (i = 0; i < softpipe->num_vertex_buffers; i++) {
141 pipe_resource_reference(&softpipe->vertex_buffer[i].buffer, NULL);
142 }
143
144 tgsi_exec_machine_destroy(softpipe->fs_machine);
145
146 FREE( softpipe );
147 }
148
149
150 /**
151 * if (the texture is being used as a framebuffer surface)
152 * return SP_REFERENCED_FOR_WRITE
153 * else if (the texture is a bound texture source)
154 * return SP_REFERENCED_FOR_READ
155 * else
156 * return SP_UNREFERENCED
157 */
158 unsigned int
softpipe_is_resource_referenced(struct pipe_context * pipe,struct pipe_resource * texture,unsigned level,int layer)159 softpipe_is_resource_referenced( struct pipe_context *pipe,
160 struct pipe_resource *texture,
161 unsigned level, int layer)
162 {
163 struct softpipe_context *softpipe = softpipe_context( pipe );
164 unsigned i, sh;
165
166 if (texture->target == PIPE_BUFFER)
167 return SP_UNREFERENCED;
168
169 /* check if any of the bound drawing surfaces are this texture */
170 if (softpipe->dirty_render_cache) {
171 for (i = 0; i < softpipe->framebuffer.nr_cbufs; i++) {
172 if (softpipe->framebuffer.cbufs[i] &&
173 softpipe->framebuffer.cbufs[i]->texture == texture) {
174 return SP_REFERENCED_FOR_WRITE;
175 }
176 }
177 if (softpipe->framebuffer.zsbuf &&
178 softpipe->framebuffer.zsbuf->texture == texture) {
179 return SP_REFERENCED_FOR_WRITE;
180 }
181 }
182
183 /* check if any of the tex_cache textures are this texture */
184 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
185 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
186 if (softpipe->tex_cache[sh][i] &&
187 softpipe->tex_cache[sh][i]->texture == texture)
188 return SP_REFERENCED_FOR_READ;
189 }
190 }
191
192 return SP_UNREFERENCED;
193 }
194
195
196
197
198 static void
softpipe_render_condition(struct pipe_context * pipe,struct pipe_query * query,uint mode)199 softpipe_render_condition( struct pipe_context *pipe,
200 struct pipe_query *query,
201 uint mode )
202 {
203 struct softpipe_context *softpipe = softpipe_context( pipe );
204
205 softpipe->render_cond_query = query;
206 softpipe->render_cond_mode = mode;
207 }
208
209
210
211 struct pipe_context *
softpipe_create_context(struct pipe_screen * screen,void * priv)212 softpipe_create_context( struct pipe_screen *screen,
213 void *priv )
214 {
215 struct softpipe_screen *sp_screen = softpipe_screen(screen);
216 struct softpipe_context *softpipe = CALLOC_STRUCT(softpipe_context);
217 uint i, sh;
218
219 util_init_math();
220
221 softpipe->dump_fs = debug_get_bool_option( "SOFTPIPE_DUMP_FS", FALSE );
222 softpipe->dump_gs = debug_get_bool_option( "SOFTPIPE_DUMP_GS", FALSE );
223
224 softpipe->pipe.screen = screen;
225 softpipe->pipe.destroy = softpipe_destroy;
226 softpipe->pipe.priv = priv;
227
228 /* state setters */
229 softpipe_init_blend_funcs(&softpipe->pipe);
230 softpipe_init_clip_funcs(&softpipe->pipe);
231 softpipe_init_query_funcs( softpipe );
232 softpipe_init_rasterizer_funcs(&softpipe->pipe);
233 softpipe_init_sampler_funcs(&softpipe->pipe);
234 softpipe_init_shader_funcs(&softpipe->pipe);
235 softpipe_init_streamout_funcs(&softpipe->pipe);
236 softpipe_init_texture_funcs( &softpipe->pipe );
237 softpipe_init_vertex_funcs(&softpipe->pipe);
238
239 softpipe->pipe.set_framebuffer_state = softpipe_set_framebuffer_state;
240
241 softpipe->pipe.draw_vbo = softpipe_draw_vbo;
242
243 softpipe->pipe.clear = softpipe_clear;
244 softpipe->pipe.flush = softpipe_flush_wrapped;
245
246 softpipe->pipe.render_condition = softpipe_render_condition;
247
248 softpipe->pipe.create_video_decoder = vl_create_decoder;
249 softpipe->pipe.create_video_buffer = vl_video_buffer_create;
250
251 /*
252 * Alloc caches for accessing drawing surfaces and textures.
253 * Must be before quad stage setup!
254 */
255 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++)
256 softpipe->cbuf_cache[i] = sp_create_tile_cache( &softpipe->pipe );
257 softpipe->zsbuf_cache = sp_create_tile_cache( &softpipe->pipe );
258
259 /* Allocate texture caches */
260 for (sh = 0; sh < Elements(softpipe->tex_cache); sh++) {
261 for (i = 0; i < Elements(softpipe->tex_cache[0]); i++) {
262 softpipe->tex_cache[sh][i] = sp_create_tex_tile_cache(&softpipe->pipe);
263 if (!softpipe->tex_cache[sh][i])
264 goto fail;
265 }
266 }
267
268 softpipe->fs_machine = tgsi_exec_machine_create();
269
270 /* setup quad rendering stages */
271 softpipe->quad.shade = sp_quad_shade_stage(softpipe);
272 softpipe->quad.depth_test = sp_quad_depth_test_stage(softpipe);
273 softpipe->quad.blend = sp_quad_blend_stage(softpipe);
274 softpipe->quad.pstipple = sp_quad_polygon_stipple_stage(softpipe);
275
276
277 /*
278 * Create drawing context and plug our rendering stage into it.
279 */
280 if (sp_screen->use_llvm)
281 softpipe->draw = draw_create(&softpipe->pipe);
282 else
283 softpipe->draw = draw_create_no_llvm(&softpipe->pipe);
284 if (!softpipe->draw)
285 goto fail;
286
287 draw_texture_samplers(softpipe->draw,
288 PIPE_SHADER_VERTEX,
289 PIPE_MAX_SAMPLERS,
290 (struct tgsi_sampler **)
291 softpipe->tgsi.samplers_list[PIPE_SHADER_VERTEX]);
292
293 draw_texture_samplers(softpipe->draw,
294 PIPE_SHADER_GEOMETRY,
295 PIPE_MAX_SAMPLERS,
296 (struct tgsi_sampler **)
297 softpipe->tgsi.samplers_list[PIPE_SHADER_GEOMETRY]);
298
299 if (debug_get_bool_option( "SOFTPIPE_NO_RAST", FALSE ))
300 softpipe->no_rast = TRUE;
301
302 softpipe->vbuf_backend = sp_create_vbuf_backend(softpipe);
303 if (!softpipe->vbuf_backend)
304 goto fail;
305
306 softpipe->vbuf = draw_vbuf_stage(softpipe->draw, softpipe->vbuf_backend);
307 if (!softpipe->vbuf)
308 goto fail;
309
310 draw_set_rasterize_stage(softpipe->draw, softpipe->vbuf);
311 draw_set_render(softpipe->draw, softpipe->vbuf_backend);
312
313
314 /* plug in AA line/point stages */
315 draw_install_aaline_stage(softpipe->draw, &softpipe->pipe);
316 draw_install_aapoint_stage(softpipe->draw, &softpipe->pipe);
317
318 /* Do polygon stipple w/ texture map + frag prog? */
319 #if DO_PSTIPPLE_IN_DRAW_MODULE
320 draw_install_pstipple_stage(softpipe->draw, &softpipe->pipe);
321 #endif
322
323 draw_wide_point_sprites(softpipe->draw, TRUE);
324
325 sp_init_surface_functions(softpipe);
326
327 #if DO_PSTIPPLE_IN_HELPER_MODULE
328 /* create the polgon stipple sampler */
329 softpipe->pstipple.sampler = util_pstipple_create_sampler(&softpipe->pipe);
330 #endif
331
332 return &softpipe->pipe;
333
334 fail:
335 softpipe_destroy(&softpipe->pipe);
336 return NULL;
337 }
338