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_cb_fbo.h"
42 #include "st_context.h"
43 #include "st_manager.h"
44 #include "pipe/p_context.h"
45 #include "pipe/p_defines.h"
46 #include "pipe/p_screen.h"
47 #include "util/u_gen_mipmap.h"
48
49
50 void
st_flush(struct st_context * st,struct pipe_fence_handle ** fence,unsigned flags)51 st_flush(struct st_context *st,
52 struct pipe_fence_handle **fence,
53 unsigned flags)
54 {
55 /* We want to call this function periodically.
56 * Typically, it has nothing to do so it shouldn't be expensive.
57 */
58 st_context_free_zombie_objects(st);
59
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_bitmap_cache(st);
73 st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
74
75 if (fence) {
76 st->pipe->screen->fence_finish(st->pipe->screen, NULL, fence,
77 PIPE_TIMEOUT_INFINITE);
78 st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
79 }
80
81 st_manager_flush_swapbuffers();
82 }
83
84
85
86 /**
87 * Called via ctx->Driver.Flush()
88 */
89 static void
st_glFlush(struct gl_context * ctx)90 st_glFlush(struct gl_context *ctx)
91 {
92 struct st_context *st = st_context(ctx);
93
94 st_flush_bitmap_cache(st);
95
96 /* Don't call st_finish() here. It is not the state tracker's
97 * responsibilty to inject sleeps in the hope of avoiding buffer
98 * synchronization issues. Calling finish() here will just hide
99 * problems that need to be fixed elsewhere.
100 */
101 st_flush(st, NULL, 0);
102
103 st_manager_flush_frontbuffer(st);
104 }
105
106
107 /**
108 * Called via ctx->Driver.Finish()
109 */
110 static void
st_glFinish(struct gl_context * ctx)111 st_glFinish(struct gl_context *ctx)
112 {
113 struct st_context *st = st_context(ctx);
114
115 st_finish(st);
116
117 st_manager_flush_frontbuffer(st);
118 }
119
120
121 static GLenum
gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)122 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
123 {
124 switch (status) {
125 case PIPE_NO_RESET:
126 return GL_NO_ERROR;
127 case PIPE_GUILTY_CONTEXT_RESET:
128 return GL_GUILTY_CONTEXT_RESET_ARB;
129 case PIPE_INNOCENT_CONTEXT_RESET:
130 return GL_INNOCENT_CONTEXT_RESET_ARB;
131 case PIPE_UNKNOWN_CONTEXT_RESET:
132 return GL_UNKNOWN_CONTEXT_RESET_ARB;
133 default:
134 assert(0);
135 return GL_NO_ERROR;
136 }
137 }
138
139
140 static void
st_device_reset_callback(void * data,enum pipe_reset_status status)141 st_device_reset_callback(void *data, enum pipe_reset_status status)
142 {
143 struct st_context *st = data;
144
145 assert(status != PIPE_NO_RESET);
146
147 st->reset_status = status;
148 _mesa_set_context_lost_dispatch(st->ctx);
149 }
150
151
152 /**
153 * Query information about GPU resets observed by this context
154 *
155 * Called via \c dd_function_table::GetGraphicsResetStatus.
156 */
157 static GLenum
st_get_graphics_reset_status(struct gl_context * ctx)158 st_get_graphics_reset_status(struct gl_context *ctx)
159 {
160 struct st_context *st = st_context(ctx);
161 enum pipe_reset_status status;
162
163 if (st->reset_status != PIPE_NO_RESET) {
164 status = st->reset_status;
165 st->reset_status = PIPE_NO_RESET;
166 } else {
167 status = st->pipe->get_device_reset_status(st->pipe);
168 if (status != PIPE_NO_RESET)
169 st_device_reset_callback(st, status);
170 }
171
172 return gl_reset_status_from_pipe_reset_status(status);
173 }
174
175
176 void
st_install_device_reset_callback(struct st_context * st)177 st_install_device_reset_callback(struct st_context *st)
178 {
179 if (st->pipe->set_device_reset_callback) {
180 struct pipe_device_reset_callback cb;
181 cb.reset = st_device_reset_callback;
182 cb.data = st;
183 st->pipe->set_device_reset_callback(st->pipe, &cb);
184 }
185 }
186
187
188 void
st_init_flush_functions(struct pipe_screen * screen,struct dd_function_table * functions)189 st_init_flush_functions(struct pipe_screen *screen,
190 struct dd_function_table *functions)
191 {
192 functions->Flush = st_glFlush;
193 functions->Finish = st_glFinish;
194
195 if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
196 functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
197 }
198