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_flush_bitmap_cache(st);
61 st->pipe->flush(st->pipe, fence, flags);
62 }
63
64
65 /**
66 * Flush, and wait for completion.
67 */
68 void
st_finish(struct st_context * st)69 st_finish(struct st_context *st)
70 {
71 struct pipe_fence_handle *fence = NULL;
72
73 st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
74
75 if (fence) {
76 st->screen->fence_finish(st->screen, NULL, fence,
77 PIPE_TIMEOUT_INFINITE);
78 st->screen->fence_reference(st->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,unsigned gallium_flush_flags)90 st_glFlush(struct gl_context *ctx, unsigned gallium_flush_flags)
91 {
92 struct st_context *st = st_context(ctx);
93
94 /* Don't call st_finish() here. It is not the state tracker's
95 * responsibilty to inject sleeps in the hope of avoiding buffer
96 * synchronization issues. Calling finish() here will just hide
97 * problems that need to be fixed elsewhere.
98 */
99 st_flush(st, NULL, gallium_flush_flags);
100
101 st_manager_flush_frontbuffer(st);
102 }
103
104
105 /**
106 * Called via ctx->Driver.Finish()
107 */
108 static void
st_glFinish(struct gl_context * ctx)109 st_glFinish(struct gl_context *ctx)
110 {
111 struct st_context *st = st_context(ctx);
112
113 st_finish(st);
114
115 st_manager_flush_frontbuffer(st);
116 }
117
118
119 static GLenum
gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)120 gl_reset_status_from_pipe_reset_status(enum pipe_reset_status status)
121 {
122 switch (status) {
123 case PIPE_NO_RESET:
124 return GL_NO_ERROR;
125 case PIPE_GUILTY_CONTEXT_RESET:
126 return GL_GUILTY_CONTEXT_RESET_ARB;
127 case PIPE_INNOCENT_CONTEXT_RESET:
128 return GL_INNOCENT_CONTEXT_RESET_ARB;
129 case PIPE_UNKNOWN_CONTEXT_RESET:
130 return GL_UNKNOWN_CONTEXT_RESET_ARB;
131 default:
132 assert(0);
133 return GL_NO_ERROR;
134 }
135 }
136
137
138 static void
st_device_reset_callback(void * data,enum pipe_reset_status status)139 st_device_reset_callback(void *data, enum pipe_reset_status status)
140 {
141 struct st_context *st = data;
142
143 assert(status != PIPE_NO_RESET);
144
145 st->reset_status = status;
146 _mesa_set_context_lost_dispatch(st->ctx);
147 }
148
149
150 /**
151 * Query information about GPU resets observed by this context
152 *
153 * Called via \c dd_function_table::GetGraphicsResetStatus.
154 */
155 static GLenum
st_get_graphics_reset_status(struct gl_context * ctx)156 st_get_graphics_reset_status(struct gl_context *ctx)
157 {
158 struct st_context *st = st_context(ctx);
159 enum pipe_reset_status status;
160
161 if (st->reset_status != PIPE_NO_RESET) {
162 status = st->reset_status;
163 st->reset_status = PIPE_NO_RESET;
164 } else {
165 status = st->pipe->get_device_reset_status(st->pipe);
166 if (status != PIPE_NO_RESET)
167 st_device_reset_callback(st, status);
168 }
169
170 return gl_reset_status_from_pipe_reset_status(status);
171 }
172
173
174 void
st_install_device_reset_callback(struct st_context * st)175 st_install_device_reset_callback(struct st_context *st)
176 {
177 if (st->pipe->set_device_reset_callback) {
178 struct pipe_device_reset_callback cb;
179 cb.reset = st_device_reset_callback;
180 cb.data = st;
181 st->pipe->set_device_reset_callback(st->pipe, &cb);
182 }
183 }
184
185
186 void
st_init_flush_functions(struct pipe_screen * screen,struct dd_function_table * functions)187 st_init_flush_functions(struct pipe_screen *screen,
188 struct dd_function_table *functions)
189 {
190 functions->Flush = st_glFlush;
191 functions->Finish = st_glFinish;
192
193 if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
194 functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
195 }
196