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_create_context(gl_api api, const struct gl_config * visual,
53 __DRIcontext * cPriv, void *sharedContextPrivate)
55 __DRIscreen *sPriv = cPriv->driScreenPriv;
56 struct dri_screen *screen = dri_screen(sPriv);
57 struct st_api *stapi = screen->st_api;
58 struct dri_context *ctx = NULL;
59 struct st_context_iface *st_share = NULL;
60 struct st_context_attribs attribs;
62 memset(&attribs, 0, sizeof(attribs));
65 attribs.profile = ST_PROFILE_OPENGL_ES1;
68 attribs.profile = ST_PROFILE_OPENGL_ES2;
71 attribs.profile = ST_PROFILE_DEFAULT;
75 if (sharedContextPrivate) {
76 st_share = ((struct dri_context *)sharedContextPrivate)->st;
79 ctx = CALLOC_STRUCT(dri_context);
83 cPriv->driverPrivate = ctx;
86 ctx->lock = screen->drmLock;
88 driParseConfigFiles(&ctx->optionCache,
89 &screen->optionCache, sPriv->myNum, "dri");
91 dri_fill_st_visual(&attribs.visual, screen, visual);
92 ctx->st = stapi->create_context(stapi, &screen->base, &attribs, st_share);
95 ctx->st->st_manager_private = (void *) ctx;
99 * libmesagallium.a that this state tracker will be linked to expects
100 * OpenGL's _glapi_table. That is, it expects libGL.so instead of
101 * libGLESv1_CM.so or libGLESv2.so. As there is no clean way to know the
102 * shared library the app links to, use the api as a simple check.
103 * It might be as well to simply remove this function call though.
105 if (api == API_OPENGL)
106 dri_init_extensions(ctx);
112 ctx->st->destroy(ctx->st);
119 dri_destroy_context(__DRIcontext * cPriv)
121 struct dri_context *ctx = dri_context(cPriv);
123 /* note: we are freeing values and nothing more because
124 * driParseConfigFiles allocated values only - the rest
125 * is owned by screen optionCache.
127 FREE(ctx->optionCache.values);
129 /* No particular reason to wait for command completion before
130 * destroying a context, but it is probably worthwhile flushing it
131 * to avoid having to add code elsewhere to cope with flushing a
132 * partially destroyed context.
134 ctx->st->flush(ctx->st, 0, NULL);
135 ctx->st->destroy(ctx->st);
141 dri_unbind_context(__DRIcontext * cPriv)
143 /* dri_util.c ensures cPriv is not null */
144 struct dri_screen *screen = dri_screen(cPriv->driScreenPriv);
145 struct dri_context *ctx = dri_context(cPriv);
146 struct dri_drawable *draw = dri_drawable(ctx->dPriv);
147 struct dri_drawable *read = dri_drawable(ctx->rPriv);
148 struct st_api *stapi = screen->st_api;
150 if (--ctx->bind_count == 0) {
151 if (ctx->st == ctx->stapi->get_current(ctx->stapi)) {
152 ctx->st->flush(ctx->st, ST_FLUSH_FRONT, NULL);
153 stapi->make_current(stapi, NULL, NULL, NULL);
154 draw->context = NULL;
155 read->context = NULL;
163 dri_make_current(__DRIcontext * cPriv,
164 __DRIdrawable * driDrawPriv,
165 __DRIdrawable * driReadPriv)
167 /* dri_util.c ensures cPriv is not null */
168 struct dri_context *ctx = dri_context(cPriv);
169 struct dri_drawable *draw = dri_drawable(driDrawPriv);
170 struct dri_drawable *read = dri_drawable(driReadPriv);
171 struct st_context_iface *old_st = ctx->stapi->get_current(ctx->stapi);
173 if (old_st && old_st != ctx->st)
174 old_st->flush(old_st, ST_FLUSH_FRONT, NULL);
178 if (!driDrawPriv && !driReadPriv)
179 return ctx->stapi->make_current(ctx->stapi, ctx->st, NULL, NULL);
180 else if (!driDrawPriv || !driReadPriv)
184 if (ctx->dPriv != driDrawPriv) {
185 ctx->dPriv = driDrawPriv;
186 draw->texture_stamp = driDrawPriv->lastStamp - 1;
189 if (ctx->rPriv != driReadPriv) {
190 ctx->rPriv = driReadPriv;
191 read->texture_stamp = driReadPriv->lastStamp - 1;
194 ctx->stapi->make_current(ctx->stapi, ctx->st, &draw->base, &read->base);
200 dri_get_current(__DRIscreen *sPriv)
202 struct dri_screen *screen = dri_screen(sPriv);
203 struct st_api *stapi = screen->st_api;
204 struct st_context_iface *st;
206 st = stapi->get_current(stapi);
208 return (struct dri_context *) (st) ? st->st_manager_private : NULL;
211 /* vim: set sw=3 ts=8 sts=3 expandtab: */