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_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
st_flush(struct st_context * st,struct pipe_fence_handle ** fence,unsigned flags)49 void st_flush(struct st_context *st,
50 struct pipe_fence_handle **fence,
51 unsigned flags)
52 {
53 st_flush_bitmap_cache(st);
54
55 st->pipe->flush(st->pipe, fence, flags);
56 }
57
58
59 /**
60 * Flush, and wait for completion.
61 */
st_finish(struct st_context * st)62 void st_finish( struct st_context *st )
63 {
64 struct pipe_fence_handle *fence = NULL;
65
66 st_flush(st, &fence, PIPE_FLUSH_ASYNC | PIPE_FLUSH_HINT_FINISH);
67
68 if(fence) {
69 st->pipe->screen->fence_finish(st->pipe->screen, NULL, fence,
70 PIPE_TIMEOUT_INFINITE);
71 st->pipe->screen->fence_reference(st->pipe->screen, &fence, NULL);
72 }
73
74 st_manager_flush_swapbuffers();
75 }
76
77
78
79 /**
80 * Called via ctx->Driver.Flush()
81 */
st_glFlush(struct gl_context * ctx)82 static void st_glFlush(struct gl_context *ctx)
83 {
84 struct st_context *st = st_context(ctx);
85
86 /* Don't call st_finish() here. It is not the state tracker's
87 * responsibilty to inject sleeps in the hope of avoiding buffer
88 * synchronization issues. Calling finish() here will just hide
89 * problems that need to be fixed elsewhere.
90 */
91 st_flush(st, NULL, 0);
92
93 st_manager_flush_frontbuffer(st);
94 }
95
96
97 /**
98 * Called via ctx->Driver.Finish()
99 */
st_glFinish(struct gl_context * ctx)100 static void 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 /**
130 * Query information about GPU resets observed by this context
131 *
132 * Called via \c dd_function_table::GetGraphicsResetStatus.
133 */
134 static GLenum
st_get_graphics_reset_status(struct gl_context * ctx)135 st_get_graphics_reset_status(struct gl_context *ctx)
136 {
137 struct st_context *st = st_context(ctx);
138 enum pipe_reset_status status;
139
140 if (st->reset_status != PIPE_NO_RESET) {
141 status = st->reset_status;
142 st->reset_status = PIPE_NO_RESET;
143 } else {
144 status = st->pipe->get_device_reset_status(st->pipe);
145 }
146
147 return gl_reset_status_from_pipe_reset_status(status);
148 }
149
150
151 static void
st_device_reset_callback(void * data,enum pipe_reset_status status)152 st_device_reset_callback(void *data, enum pipe_reset_status status)
153 {
154 struct st_context *st = data;
155
156 assert(status != PIPE_NO_RESET);
157
158 st->reset_status = status;
159 _mesa_set_context_lost_dispatch(st->ctx);
160 }
161
162
163 void
st_install_device_reset_callback(struct st_context * st)164 st_install_device_reset_callback(struct st_context *st)
165 {
166 if (st->pipe->set_device_reset_callback) {
167 struct pipe_device_reset_callback cb;
168 cb.reset = st_device_reset_callback;
169 cb.data = st;
170 st->pipe->set_device_reset_callback(st->pipe, &cb);
171 }
172 }
173
174
st_init_flush_functions(struct pipe_screen * screen,struct dd_function_table * functions)175 void st_init_flush_functions(struct pipe_screen *screen,
176 struct dd_function_table *functions)
177 {
178 functions->Flush = st_glFlush;
179 functions->Finish = st_glFinish;
180
181 if (screen->get_param(screen, PIPE_CAP_DEVICE_RESET_STATUS_QUERY))
182 functions->GetGraphicsResetStatus = st_get_graphics_reset_status;
183 }
184