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_inlines.h"
37 #include "util/u_math.h"
38 #include "util/u_memory.h"
39 #include "util/list.h"
40 #include "util/u_upload_mgr.h"
41 #include "lp_clear.h"
42 #include "lp_context.h"
43 #include "lp_flush.h"
44 #include "lp_perf.h"
45 #include "lp_state.h"
46 #include "lp_surface.h"
47 #include "lp_query.h"
48 #include "lp_setup.h"
49 #include "lp_screen.h"
50 #include "lp_fence.h"
51
52 /* This is only safe if there's just one concurrent context */
53 #ifdef EMBEDDED_DEVICE
54 #define USE_GLOBAL_LLVM_CONTEXT
55 #endif
56
llvmpipe_destroy(struct pipe_context * pipe)57 static void llvmpipe_destroy( struct pipe_context *pipe )
58 {
59 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
60 struct llvmpipe_screen *lp_screen = llvmpipe_screen(pipe->screen);
61 uint i;
62
63 mtx_lock(&lp_screen->ctx_mutex);
64 list_del(&llvmpipe->list);
65 mtx_unlock(&lp_screen->ctx_mutex);
66 lp_print_counters();
67
68 if (llvmpipe->csctx) {
69 lp_csctx_destroy(llvmpipe->csctx);
70 }
71 if (llvmpipe->blitter) {
72 util_blitter_destroy(llvmpipe->blitter);
73 }
74
75 if (llvmpipe->pipe.stream_uploader)
76 u_upload_destroy(llvmpipe->pipe.stream_uploader);
77
78 /* This will also destroy llvmpipe->setup:
79 */
80 if (llvmpipe->draw)
81 draw_destroy( llvmpipe->draw );
82
83 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
84 pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
85 }
86
87 pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
88
89 for (enum pipe_shader_type s = PIPE_SHADER_VERTEX; s < PIPE_SHADER_TYPES; s++) {
90 for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
91 pipe_sampler_view_reference(&llvmpipe->sampler_views[s][i], NULL);
92 }
93 for (i = 0; i < LP_MAX_TGSI_SHADER_IMAGES; i++) {
94 pipe_resource_reference(&llvmpipe->images[s][i].resource, NULL);
95 }
96 for (i = 0; i < LP_MAX_TGSI_SHADER_BUFFERS; i++) {
97 pipe_resource_reference(&llvmpipe->ssbos[s][i].buffer, NULL);
98 }
99 for (i = 0; i < ARRAY_SIZE(llvmpipe->constants[s]); i++) {
100 pipe_resource_reference(&llvmpipe->constants[s][i].buffer, NULL);
101 }
102 }
103
104 for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
105 pipe_vertex_buffer_unreference(&llvmpipe->vertex_buffer[i]);
106 }
107
108 lp_delete_setup_variants(llvmpipe);
109
110 #ifndef USE_GLOBAL_LLVM_CONTEXT
111 LLVMContextDispose(llvmpipe->context);
112 #endif
113 llvmpipe->context = NULL;
114
115 align_free( llvmpipe );
116 }
117
118 static void
do_flush(struct pipe_context * pipe,struct pipe_fence_handle ** fence,unsigned flags)119 do_flush( struct pipe_context *pipe,
120 struct pipe_fence_handle **fence,
121 unsigned flags)
122 {
123 llvmpipe_flush(pipe, fence, __FUNCTION__);
124 }
125
126 static void
llvmpipe_fence_server_sync(struct pipe_context * pipe,struct pipe_fence_handle * fence)127 llvmpipe_fence_server_sync(struct pipe_context *pipe,
128 struct pipe_fence_handle *fence)
129 {
130 struct lp_fence *f = (struct lp_fence *)fence;
131
132 if (!f->issued)
133 return;
134 lp_fence_wait(f);
135 }
136
137 static void
llvmpipe_render_condition(struct pipe_context * pipe,struct pipe_query * query,bool condition,enum pipe_render_cond_flag mode)138 llvmpipe_render_condition(struct pipe_context *pipe,
139 struct pipe_query *query,
140 bool condition,
141 enum pipe_render_cond_flag mode)
142 {
143 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
144
145 llvmpipe->render_cond_query = query;
146 llvmpipe->render_cond_mode = mode;
147 llvmpipe->render_cond_cond = condition;
148 }
149
150 static void
llvmpipe_render_condition_mem(struct pipe_context * pipe,struct pipe_resource * buffer,unsigned offset,bool condition)151 llvmpipe_render_condition_mem(struct pipe_context *pipe,
152 struct pipe_resource *buffer,
153 unsigned offset,
154 bool condition)
155 {
156 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
157
158 llvmpipe->render_cond_buffer = llvmpipe_resource(buffer);
159 llvmpipe->render_cond_offset = offset;
160 llvmpipe->render_cond_cond = condition;
161 }
162
163 static void
llvmpipe_texture_barrier(struct pipe_context * pipe,unsigned flags)164 llvmpipe_texture_barrier(struct pipe_context *pipe, unsigned flags)
165 {
166 llvmpipe_finish(pipe, "barrier");
167 }
168
lp_draw_disk_cache_find_shader(void * cookie,struct lp_cached_code * cache,unsigned char ir_sha1_cache_key[20])169 static void lp_draw_disk_cache_find_shader(void *cookie,
170 struct lp_cached_code *cache,
171 unsigned char ir_sha1_cache_key[20])
172 {
173 struct llvmpipe_screen *screen = cookie;
174 lp_disk_cache_find_shader(screen, cache, ir_sha1_cache_key);
175 }
176
lp_draw_disk_cache_insert_shader(void * cookie,struct lp_cached_code * cache,unsigned char ir_sha1_cache_key[20])177 static void lp_draw_disk_cache_insert_shader(void *cookie,
178 struct lp_cached_code *cache,
179 unsigned char ir_sha1_cache_key[20])
180 {
181 struct llvmpipe_screen *screen = cookie;
182 lp_disk_cache_insert_shader(screen, cache, ir_sha1_cache_key);
183 }
184
185 static enum pipe_reset_status
llvmpipe_get_device_reset_status(struct pipe_context * pipe)186 llvmpipe_get_device_reset_status(struct pipe_context *pipe)
187 {
188 return PIPE_NO_RESET;
189 }
190
191 struct pipe_context *
llvmpipe_create_context(struct pipe_screen * screen,void * priv,unsigned flags)192 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
193 unsigned flags)
194 {
195 struct llvmpipe_context *llvmpipe;
196 struct llvmpipe_screen *lp_screen = llvmpipe_screen(screen);
197
198 if (!llvmpipe_screen_late_init(lp_screen))
199 return NULL;
200
201 llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
202 if (!llvmpipe)
203 return NULL;
204
205 memset(llvmpipe, 0, sizeof *llvmpipe);
206
207 list_inithead(&llvmpipe->fs_variants_list.list);
208
209 list_inithead(&llvmpipe->setup_variants_list.list);
210
211 list_inithead(&llvmpipe->cs_variants_list.list);
212
213 llvmpipe->pipe.screen = screen;
214 llvmpipe->pipe.priv = priv;
215
216 /* Init the pipe context methods */
217 llvmpipe->pipe.destroy = llvmpipe_destroy;
218 llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
219 llvmpipe->pipe.clear = llvmpipe_clear;
220 llvmpipe->pipe.flush = do_flush;
221 llvmpipe->pipe.texture_barrier = llvmpipe_texture_barrier;
222
223 llvmpipe->pipe.render_condition = llvmpipe_render_condition;
224 llvmpipe->pipe.render_condition_mem = llvmpipe_render_condition_mem;
225
226 llvmpipe->pipe.fence_server_sync = llvmpipe_fence_server_sync;
227 llvmpipe->pipe.get_device_reset_status = llvmpipe_get_device_reset_status;
228 llvmpipe_init_blend_funcs(llvmpipe);
229 llvmpipe_init_clip_funcs(llvmpipe);
230 llvmpipe_init_draw_funcs(llvmpipe);
231 llvmpipe_init_compute_funcs(llvmpipe);
232 llvmpipe_init_sampler_funcs(llvmpipe);
233 llvmpipe_init_query_funcs( llvmpipe );
234 llvmpipe_init_vertex_funcs(llvmpipe);
235 llvmpipe_init_so_funcs(llvmpipe);
236 llvmpipe_init_fs_funcs(llvmpipe);
237 llvmpipe_init_vs_funcs(llvmpipe);
238 llvmpipe_init_gs_funcs(llvmpipe);
239 llvmpipe_init_tess_funcs(llvmpipe);
240 llvmpipe_init_rasterizer_funcs(llvmpipe);
241 llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
242 llvmpipe_init_surface_functions(llvmpipe);
243
244 #ifdef USE_GLOBAL_LLVM_CONTEXT
245 llvmpipe->context = LLVMGetGlobalContext();
246 #else
247 llvmpipe->context = LLVMContextCreate();
248 #endif
249
250 if (!llvmpipe->context)
251 goto fail;
252
253 #if LLVM_VERSION_MAJOR >= 15
254 LLVMContextSetOpaquePointers(llvmpipe->context, false);
255 #endif
256
257 /*
258 * Create drawing context and plug our rendering stage into it.
259 */
260 llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
261 llvmpipe->context);
262 if (!llvmpipe->draw)
263 goto fail;
264
265 draw_set_disk_cache_callbacks(llvmpipe->draw,
266 lp_screen,
267 lp_draw_disk_cache_find_shader,
268 lp_draw_disk_cache_insert_shader);
269
270 draw_set_constant_buffer_stride(llvmpipe->draw, lp_get_constant_buffer_stride(screen));
271
272 /* FIXME: devise alternative to draw_texture_samplers */
273
274 llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
275 llvmpipe->draw );
276 if (!llvmpipe->setup)
277 goto fail;
278
279 llvmpipe->csctx = lp_csctx_create( &llvmpipe->pipe );
280 if (!llvmpipe->csctx)
281 goto fail;
282 llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
283 if (!llvmpipe->pipe.stream_uploader)
284 goto fail;
285 llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
286
287 llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
288 if (!llvmpipe->blitter) {
289 goto fail;
290 }
291
292 /* must be done before installing Draw stages */
293 util_blitter_cache_all_shaders(llvmpipe->blitter);
294
295 /* plug in AA line/point stages */
296 draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
297 draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
298 draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
299
300 /* convert points and lines into triangles:
301 * (otherwise, draw points and lines natively)
302 */
303 draw_wide_point_sprites(llvmpipe->draw, FALSE);
304 draw_enable_point_sprites(llvmpipe->draw, FALSE);
305 draw_wide_point_threshold(llvmpipe->draw, 10000.0);
306 draw_wide_line_threshold(llvmpipe->draw, 10000.0);
307
308 /* initial state for clipping - enabled, with no guardband */
309 draw_set_driver_clipping(llvmpipe->draw, FALSE, FALSE, FALSE, TRUE);
310
311 lp_reset_counters();
312
313 /* If llvmpipe_set_scissor_states() is never called, we still need to
314 * make sure that derived scissor state is computed.
315 * See https://bugs.freedesktop.org/show_bug.cgi?id=101709
316 */
317 llvmpipe->dirty |= LP_NEW_SCISSOR;
318
319 mtx_lock(&lp_screen->ctx_mutex);
320 list_addtail(&llvmpipe->list, &lp_screen->ctx_list);
321 mtx_unlock(&lp_screen->ctx_mutex);
322 return &llvmpipe->pipe;
323
324 fail:
325 llvmpipe_destroy(&llvmpipe->pipe);
326 return NULL;
327 }
328
329