1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
4 * All Rights Reserved.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
13 *
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
16 * of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 *
26 **************************************************************************/
27
28 /*
29 * Authors:
30 * Keith Whitwell <keithw@vmware.com>
31 * Brian Paul
32 */
33
34 #include "main/glheader.h"
35 #include "main/macros.h"
36 #include "main/context.h"
37 #include "st_context.h"
38 #include "st_cb_bitmap.h"
39 #include "st_cb_flush.h"
40 #include "st_cb_clear.h"
41 #include "st_context.h"
42 #include "st_manager.h"
43 #include "pipe/p_context.h"
44 #include "pipe/p_defines.h"
45 #include "pipe/p_screen.h"
46 #include "util/u_gen_mipmap.h"
47
48
49 void
st_flush(struct st_context * st,struct pipe_fence_handle ** fence,unsigned flags)50 st_flush(struct st_context *st,
51 struct pipe_fence_handle **fence,
52 unsigned flags)
53 {
54 /* We want to call this function periodically.
55 * Typically, it has nothing to do so it shouldn't be expensive.
56 */
57 st_context_free_zombie_objects(st);
58
59 st_flush_bitmap_cache(st);
60 st->pipe->flush(st->pipe, fence, flags);
61 }
62
63
64 /**
65 * Flush, and wait for completion.
66 */
67 void
st_finish(struct st_context * st)68 st_finish(struct st_context *st)
69 {
70 struct pipe_fence_handle *fence = NULL;
71
72 st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
73
74 if (fence) {
75 st->screen->fence_finish(st->screen, NULL, fence,
76 PIPE_TIMEOUT_INFINITE);
77 st->screen->fence_reference(st->screen, &fence, NULL);
78 }
79
80 st_manager_flush_swapbuffers();
81 }
82
83
84 void
st_glFlush(struct gl_context * ctx,unsigned gallium_flush_flags)85 st_glFlush(struct gl_context *ctx, unsigned gallium_flush_flags)
86 {
87 struct st_context *st = st_context(ctx);
88
89 /* Don't call st_finish() here. It is not the state tracker's
90 * responsibilty to inject sleeps in the hope of avoiding buffer
91 * synchronization issues. Calling finish() here will just hide
92 * problems that need to be fixed elsewhere.
93 */
94 st_flush(st, NULL, gallium_flush_flags);
95
96 st_manager_flush_frontbuffer(st);
97 }
98
99 void
st_glFinish(struct gl_context * ctx)100 st_glFinish(struct gl_context *ctx)
101 {
102 struct st_context *st = st_context(ctx);
103
104 st_finish(st);
105
106 st_manager_flush_frontbuffer(st);
107 }
108
109
110 static GLenum
gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)111 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
112 {
113 switch (status) {
114 case PIPE_NO_RESET:
115 return GL_NO_ERROR;
116 case PIPE_GUILTY_CONTEXT_RESET:
117 return GL_GUILTY_CONTEXT_RESET_ARB;
118 case PIPE_INNOCENT_CONTEXT_RESET:
119 return GL_INNOCENT_CONTEXT_RESET_ARB;
120 case PIPE_UNKNOWN_CONTEXT_RESET:
121 return GL_UNKNOWN_CONTEXT_RESET_ARB;
122 default:
123 assert(0);
124 return GL_NO_ERROR;
125 }
126 }
127
128
129 static void
st_device_reset_callback(void * data,enum pipe_reset_status status)130 st_device_reset_callback(void *data, enum pipe_reset_status status)
131 {
132 struct st_context *st = data;
133
134 assert(status != PIPE_NO_RESET);
135
136 st->reset_status = status;
137 _mesa_set_context_lost_dispatch(st->ctx);
138 }
139
140
141 /**
142 * Query information about GPU resets observed by this context
143 *
144 * Called via \c dd_function_table::GetGraphicsResetStatus.
145 */
146 static GLenum
st_get_graphics_reset_status(struct gl_context * ctx)147 st_get_graphics_reset_status(struct gl_context *ctx)
148 {
149 struct st_context *st = st_context(ctx);
150 enum pipe_reset_status status;
151
152 if (st->reset_status != PIPE_NO_RESET) {
153 status = st->reset_status;
154 st->reset_status = PIPE_NO_RESET;
155 } else {
156 status = st->pipe->get_device_reset_status(st->pipe);
157 if (status != PIPE_NO_RESET)
158 st_device_reset_callback(st, status);
159 }
160
161 return gl_reset_status_from_pipe_reset_status(status);
162 }
163
164
165 void
st_install_device_reset_callback(struct st_context * st)166 st_install_device_reset_callback(struct st_context *st)
167 {
168 if (st->pipe->set_device_reset_callback) {
169 struct pipe_device_reset_callback cb;
170 cb.reset = st_device_reset_callback;
171 cb.data = st;
172 st->pipe->set_device_reset_callback(st->pipe, &cb);
173 }
174 }
175
176
177 void
st_init_flush_functions(struct pipe_screen * screen,struct dd_function_table * functions)178 st_init_flush_functions(struct pipe_screen *screen,
179 struct dd_function_table *functions)
180 {
181 if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
182 functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
183 }
184