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