1 /**************************************************************************
3 * Copyright 2009, VMware, Inc.
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:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
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.
26 **************************************************************************/
28 * Author: Keith Whitwell <keithw@vmware.com>
29 * Author: Jakob Bornecrantz <wallbraker@gmail.com>
34 #include "dri_screen.h"
35 #include "dri_drawable.h"
36 #include "dri_context.h"
38 #include "pipe/p_context.h"
39 #include "state_tracker/st_context.h"
42 dri_init_extensions(struct dri_context
*ctx
)
44 struct st_context
*st
= (struct st_context
*) ctx
->st
;
46 /* New extensions should be added in mesa/state_tracker/st_extensions.c
47 * and not in this file. */
48 driInitExtensions(st
->ctx
, NULL
, GL_FALSE
);
52 dri_pp_query(struct dri_context
*ctx
)
56 for (i
= 0; i
< PP_FILTERS
; i
++) {
57 ctx
->pp_enabled
[i
] = driQueryOptioni(&ctx
->optionCache
, pp_filters
[i
].name
);
62 dri_create_context(gl_api api
, const struct gl_config
* visual
,
63 __DRIcontext
* cPriv
, void *sharedContextPrivate
)
65 __DRIscreen
*sPriv
= cPriv
->driScreenPriv
;
66 struct dri_screen
*screen
= dri_screen(sPriv
);
67 struct st_api
*stapi
= screen
->st_api
;
68 struct dri_context
*ctx
= NULL
;
69 struct st_context_iface
*st_share
= NULL
;
70 struct st_context_attribs attribs
;
72 memset(&attribs
, 0, sizeof(attribs
));
75 attribs
.profile
= ST_PROFILE_OPENGL_ES1
;
78 attribs
.profile
= ST_PROFILE_OPENGL_ES2
;
81 attribs
.profile
= ST_PROFILE_DEFAULT
;
85 if (sharedContextPrivate
) {
86 st_share
= ((struct dri_context
*)sharedContextPrivate
)->st
;
89 ctx
= CALLOC_STRUCT(dri_context
);
93 cPriv
->driverPrivate
= ctx
;
96 ctx
->lock
= screen
->drmLock
;
98 driParseConfigFiles(&ctx
->optionCache
,
99 &screen
->optionCache
, sPriv
->myNum
, "dri");
101 dri_fill_st_visual(&attribs
.visual
, screen
, visual
);
102 ctx
->st
= stapi
->create_context(stapi
, &screen
->base
, &attribs
, st_share
);
105 ctx
->st
->st_manager_private
= (void *) ctx
;
109 * libmesagallium.a that this state tracker will be linked to expects
110 * OpenGL's _glapi_table. That is, it expects libGL.so instead of
111 * libGLESv1_CM.so or libGLESv2.so. As there is no clean way to know the
112 * shared library the app links to, use the api as a simple check.
113 * It might be as well to simply remove this function call though.
115 if (api
== API_OPENGL
)
116 dri_init_extensions(ctx
);
118 // Context successfully created. See if post-processing is requested.
121 ctx
->pp
= pp_init(screen
->base
.screen
, ctx
->pp_enabled
);
127 ctx
->st
->destroy(ctx
->st
);
134 dri_destroy_context(__DRIcontext
* cPriv
)
136 struct dri_context
*ctx
= dri_context(cPriv
);
138 /* note: we are freeing values and nothing more because
139 * driParseConfigFiles allocated values only - the rest
140 * is owned by screen optionCache.
142 FREE(ctx
->optionCache
.values
);
144 /* No particular reason to wait for command completion before
145 * destroying a context, but it is probably worthwhile flushing it
146 * to avoid having to add code elsewhere to cope with flushing a
147 * partially destroyed context.
149 ctx
->st
->flush(ctx
->st
, 0, NULL
);
150 ctx
->st
->destroy(ctx
->st
);
152 if (ctx
->pp
) pp_free(ctx
->pp
);
158 dri_unbind_context(__DRIcontext
* cPriv
)
160 /* dri_util.c ensures cPriv is not null */
161 struct dri_screen
*screen
= dri_screen(cPriv
->driScreenPriv
);
162 struct dri_context
*ctx
= dri_context(cPriv
);
163 struct st_api
*stapi
= screen
->st_api
;
165 if (--ctx
->bind_count
== 0) {
166 if (ctx
->st
== ctx
->stapi
->get_current(ctx
->stapi
)) {
167 ctx
->st
->flush(ctx
->st
, ST_FLUSH_FRONT
, NULL
);
168 stapi
->make_current(stapi
, NULL
, NULL
, NULL
);
176 dri_make_current(__DRIcontext
* cPriv
,
177 __DRIdrawable
* driDrawPriv
,
178 __DRIdrawable
* driReadPriv
)
180 /* dri_util.c ensures cPriv is not null */
181 struct dri_context
*ctx
= dri_context(cPriv
);
182 struct dri_drawable
*draw
= dri_drawable(driDrawPriv
);
183 struct dri_drawable
*read
= dri_drawable(driReadPriv
);
184 struct st_context_iface
*old_st
= ctx
->stapi
->get_current(ctx
->stapi
);
186 if (old_st
&& old_st
!= ctx
->st
)
187 old_st
->flush(old_st
, ST_FLUSH_FRONT
, NULL
);
191 if (!driDrawPriv
&& !driReadPriv
)
192 return ctx
->stapi
->make_current(ctx
->stapi
, ctx
->st
, NULL
, NULL
);
193 else if (!driDrawPriv
|| !driReadPriv
)
196 if (ctx
->dPriv
!= driDrawPriv
) {
197 ctx
->dPriv
= driDrawPriv
;
198 draw
->texture_stamp
= driDrawPriv
->lastStamp
- 1;
200 if (ctx
->rPriv
!= driReadPriv
) {
201 ctx
->rPriv
= driReadPriv
;
202 read
->texture_stamp
= driReadPriv
->lastStamp
- 1;
205 ctx
->stapi
->make_current(ctx
->stapi
, ctx
->st
, &draw
->base
, &read
->base
);
207 // This is ok to call here. If they are already init, it's a no-op.
208 if (draw
->textures
[ST_ATTACHMENT_BACK_LEFT
] && draw
->textures
[ST_ATTACHMENT_DEPTH_STENCIL
]
210 pp_init_fbos(ctx
->pp
, draw
->textures
[ST_ATTACHMENT_BACK_LEFT
]->width0
,
211 draw
->textures
[ST_ATTACHMENT_BACK_LEFT
]->height0
,
212 draw
->textures
[ST_ATTACHMENT_DEPTH_STENCIL
]);
218 dri_get_current(__DRIscreen
*sPriv
)
220 struct dri_screen
*screen
= dri_screen(sPriv
);
221 struct st_api
*stapi
= screen
->st_api
;
222 struct st_context_iface
*st
;
224 st
= stapi
->get_current(stapi
);
226 return (struct dri_context
*) (st
) ? st
->st_manager_private
: NULL
;
229 /* vim: set sw=3 ts=8 sts=3 expandtab: */