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
50 /* This is only safe if there's just one concurrent context */
51 #ifdef PIPE_SUBSYSTEM_EMBEDDED
52 #define USE_GLOBAL_LLVM_CONTEXT
53 #endif
54
llvmpipe_destroy(struct pipe_context * pipe)55 static void llvmpipe_destroy( struct pipe_context *pipe )
56 {
57 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
58 uint i, j;
59
60 lp_print_counters();
61
62 if (llvmpipe->blitter) {
63 util_blitter_destroy(llvmpipe->blitter);
64 }
65
66 if (llvmpipe->pipe.stream_uploader)
67 u_upload_destroy(llvmpipe->pipe.stream_uploader);
68
69 /* This will also destroy llvmpipe->setup:
70 */
71 if (llvmpipe->draw)
72 draw_destroy( llvmpipe->draw );
73
74 for (i = 0; i < PIPE_MAX_COLOR_BUFS; i++) {
75 pipe_surface_reference(&llvmpipe->framebuffer.cbufs[i], NULL);
76 }
77
78 pipe_surface_reference(&llvmpipe->framebuffer.zsbuf, NULL);
79
80 for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
81 pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_FRAGMENT][i], NULL);
82 }
83
84 for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
85 pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_VERTEX][i], NULL);
86 }
87
88 for (i = 0; i < ARRAY_SIZE(llvmpipe->sampler_views[0]); i++) {
89 pipe_sampler_view_reference(&llvmpipe->sampler_views[PIPE_SHADER_GEOMETRY][i], NULL);
90 }
91
92 for (i = 0; i < ARRAY_SIZE(llvmpipe->constants); i++) {
93 for (j = 0; j < ARRAY_SIZE(llvmpipe->constants[i]); j++) {
94 pipe_resource_reference(&llvmpipe->constants[i][j].buffer, NULL);
95 }
96 }
97
98 for (i = 0; i < llvmpipe->num_vertex_buffers; i++) {
99 pipe_vertex_buffer_unreference(&llvmpipe->vertex_buffer[i]);
100 }
101
102 lp_delete_setup_variants(llvmpipe);
103
104 #ifndef USE_GLOBAL_LLVM_CONTEXT
105 LLVMContextDispose(llvmpipe->context);
106 #endif
107 llvmpipe->context = NULL;
108
109 align_free( llvmpipe );
110 }
111
112 static void
do_flush(struct pipe_context * pipe,struct pipe_fence_handle ** fence,unsigned flags)113 do_flush( struct pipe_context *pipe,
114 struct pipe_fence_handle **fence,
115 unsigned flags)
116 {
117 llvmpipe_flush(pipe, fence, __FUNCTION__);
118 }
119
120
121 static void
llvmpipe_render_condition(struct pipe_context * pipe,struct pipe_query * query,boolean condition,enum pipe_render_cond_flag mode)122 llvmpipe_render_condition(struct pipe_context *pipe,
123 struct pipe_query *query,
124 boolean condition,
125 enum pipe_render_cond_flag mode)
126 {
127 struct llvmpipe_context *llvmpipe = llvmpipe_context( pipe );
128
129 llvmpipe->render_cond_query = query;
130 llvmpipe->render_cond_mode = mode;
131 llvmpipe->render_cond_cond = condition;
132 }
133
134 struct pipe_context *
llvmpipe_create_context(struct pipe_screen * screen,void * priv,unsigned flags)135 llvmpipe_create_context(struct pipe_screen *screen, void *priv,
136 unsigned flags)
137 {
138 struct llvmpipe_context *llvmpipe;
139
140 llvmpipe = align_malloc(sizeof(struct llvmpipe_context), 16);
141 if (!llvmpipe)
142 return NULL;
143
144 util_init_math();
145
146 memset(llvmpipe, 0, sizeof *llvmpipe);
147
148 make_empty_list(&llvmpipe->fs_variants_list);
149
150 make_empty_list(&llvmpipe->setup_variants_list);
151
152
153 llvmpipe->pipe.screen = screen;
154 llvmpipe->pipe.priv = priv;
155
156 /* Init the pipe context methods */
157 llvmpipe->pipe.destroy = llvmpipe_destroy;
158 llvmpipe->pipe.set_framebuffer_state = llvmpipe_set_framebuffer_state;
159 llvmpipe->pipe.clear = llvmpipe_clear;
160 llvmpipe->pipe.flush = do_flush;
161
162 llvmpipe->pipe.render_condition = llvmpipe_render_condition;
163
164 llvmpipe_init_blend_funcs(llvmpipe);
165 llvmpipe_init_clip_funcs(llvmpipe);
166 llvmpipe_init_draw_funcs(llvmpipe);
167 llvmpipe_init_sampler_funcs(llvmpipe);
168 llvmpipe_init_query_funcs( llvmpipe );
169 llvmpipe_init_vertex_funcs(llvmpipe);
170 llvmpipe_init_so_funcs(llvmpipe);
171 llvmpipe_init_fs_funcs(llvmpipe);
172 llvmpipe_init_vs_funcs(llvmpipe);
173 llvmpipe_init_gs_funcs(llvmpipe);
174 llvmpipe_init_rasterizer_funcs(llvmpipe);
175 llvmpipe_init_context_resource_funcs( &llvmpipe->pipe );
176 llvmpipe_init_surface_functions(llvmpipe);
177
178 #ifdef USE_GLOBAL_LLVM_CONTEXT
179 llvmpipe->context = LLVMGetGlobalContext();
180 #else
181 llvmpipe->context = LLVMContextCreate();
182 #endif
183
184 if (!llvmpipe->context)
185 goto fail;
186
187 /*
188 * Create drawing context and plug our rendering stage into it.
189 */
190 llvmpipe->draw = draw_create_with_llvm_context(&llvmpipe->pipe,
191 llvmpipe->context);
192 if (!llvmpipe->draw)
193 goto fail;
194
195 /* FIXME: devise alternative to draw_texture_samplers */
196
197 llvmpipe->setup = lp_setup_create( &llvmpipe->pipe,
198 llvmpipe->draw );
199 if (!llvmpipe->setup)
200 goto fail;
201
202 llvmpipe->pipe.stream_uploader = u_upload_create_default(&llvmpipe->pipe);
203 if (!llvmpipe->pipe.stream_uploader)
204 goto fail;
205 llvmpipe->pipe.const_uploader = llvmpipe->pipe.stream_uploader;
206
207 llvmpipe->blitter = util_blitter_create(&llvmpipe->pipe);
208 if (!llvmpipe->blitter) {
209 goto fail;
210 }
211
212 /* must be done before installing Draw stages */
213 util_blitter_cache_all_shaders(llvmpipe->blitter);
214
215 /* plug in AA line/point stages */
216 draw_install_aaline_stage(llvmpipe->draw, &llvmpipe->pipe);
217 draw_install_aapoint_stage(llvmpipe->draw, &llvmpipe->pipe);
218 draw_install_pstipple_stage(llvmpipe->draw, &llvmpipe->pipe);
219
220 /* convert points and lines into triangles:
221 * (otherwise, draw points and lines natively)
222 */
223 draw_wide_point_sprites(llvmpipe->draw, FALSE);
224 draw_enable_point_sprites(llvmpipe->draw, FALSE);
225 draw_wide_point_threshold(llvmpipe->draw, 10000.0);
226 draw_wide_line_threshold(llvmpipe->draw, 10000.0);
227
228 lp_reset_counters();
229
230 /* If llvmpipe_set_scissor_states() is never called, we still need to
231 * make sure that derived scissor state is computed.
232 * See https://bugs.freedesktop.org/show_bug.cgi?id=101709
233 */
234 llvmpipe->dirty |= LP_NEW_SCISSOR;
235
236 return &llvmpipe->pipe;
237
238 fail:
239 llvmpipe_destroy(&llvmpipe->pipe);
240 return NULL;
241 }
242
243