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/**************************************************************************
*
* Copyright 2009, VMware, Inc.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
**************************************************************************/
/*
* Author: Keith Whitwell <keithw@vmware.com>
* Author: Jakob Bornecrantz <wallbraker@gmail.com>
*/
#include "dri_screen.h"
#include "dri_drawable.h"
#include "state_tracker/drm_api.h"
#include "state_tracker/dri1_api.h"
#include "state_tracker/st_public.h"
#include "state_tracker/st_context.h"
#include "pipe/p_context.h"
#include "dri_context.h"
#include "util/u_memory.h"
GLboolean
dri_create_context(const __GLcontextModes * visual,
__DRIcontextPrivate * cPriv, void *sharedContextPrivate)
{
__DRIscreenPrivate *sPriv = cPriv->driScreenPriv;
struct dri_screen *screen = dri_screen(sPriv);
struct dri_context *ctx = NULL;
struct st_context *st_share = NULL;
if (sharedContextPrivate) {
st_share = ((struct dri_context *)sharedContextPrivate)->st;
}
ctx = CALLOC_STRUCT(dri_context);
if (ctx == NULL)
goto fail;
cPriv->driverPrivate = ctx;
ctx->cPriv = cPriv;
ctx->sPriv = sPriv;
ctx->lock = screen->drmLock;
ctx->d_stamp = -1;
ctx->r_stamp = -1;
driParseConfigFiles(&ctx->optionCache,
&screen->optionCache, sPriv->myNum, "dri");
ctx->pipe = drm_api_hooks.create_context(screen->pipe_screen);
if (ctx->pipe == NULL)
goto fail;
/* used in dri_flush_frontbuffer */
ctx->pipe->priv = ctx;
ctx->st = st_create_context(ctx->pipe, visual, st_share);
if (ctx->st == NULL)
goto fail;
dri_init_extensions(ctx);
return GL_TRUE;
fail:
if (ctx && ctx->st)
st_destroy_context(ctx->st);
if (ctx && ctx->pipe)
ctx->pipe->destroy(ctx->pipe);
FREE(ctx);
return FALSE;
}
void
dri_destroy_context(__DRIcontextPrivate * cPriv)
{
struct dri_context *ctx = dri_context(cPriv);
struct dri_screen *screen = dri_screen(cPriv->driScreenPriv);
/* No particular reason to wait for command completion before
* destroying a context, but it is probably worthwhile flushing it
* to avoid having to add code elsewhere to cope with flushing a
* partially destroyed context.
*/
st_flush(ctx->st, 0, NULL);
if (screen->dummyContext == ctx)
screen->dummyContext = NULL;
/* Also frees ctx->pipe?
*/
st_destroy_context(ctx->st);
FREE(ctx);
}
GLboolean
dri_unbind_context(__DRIcontextPrivate * cPriv)
{
if (cPriv) {
struct dri_context *ctx = dri_context(cPriv);
if (--ctx->bind_count == 0) {
if (ctx->st && ctx->st == st_get_current()) {
st_flush(ctx->st, PIPE_FLUSH_RENDER_CACHE, NULL);
st_make_current(NULL, NULL, NULL);
}
}
}
return GL_TRUE;
}
GLboolean
dri_make_current(__DRIcontextPrivate * cPriv,
__DRIdrawablePrivate * driDrawPriv,
__DRIdrawablePrivate * driReadPriv)
{
if (cPriv) {
struct dri_context *ctx = dri_context(cPriv);
struct dri_screen *screen = dri_screen(cPriv->driScreenPriv);
struct dri_drawable *draw = dri_drawable(driDrawPriv);
struct dri_drawable *read = dri_drawable(driReadPriv);
struct st_context *old_st = st_get_current();
if (old_st && old_st != ctx->st)
st_flush(old_st, PIPE_FLUSH_RENDER_CACHE, NULL);
++ctx->bind_count;
/* This is for situations in which we need a rendering context but
* there may not be any currently bound.
*/
screen->dummyContext = ctx;
if (ctx->dPriv != driDrawPriv) {
ctx->dPriv = driDrawPriv;
ctx->d_stamp = driDrawPriv->lastStamp - 1;
}
if (ctx->rPriv != driReadPriv) {
ctx->rPriv = driReadPriv;
ctx->r_stamp = driReadPriv->lastStamp - 1;
}
st_make_current(ctx->st, draw->stfb, read->stfb);
if (__dri1_api_hooks) {
dri1_update_drawables(ctx, draw, read);
} else {
if (driDrawPriv)
dri_get_buffers(driDrawPriv);
if (driDrawPriv != driReadPriv && driReadPriv)
dri_get_buffers(driReadPriv);
}
} else {
st_make_current(NULL, NULL, NULL);
}
return GL_TRUE;
}
static void
st_dri_lock(struct pipe_context *pipe)
{
dri_lock((struct dri_context *)pipe->priv);
}
static void
st_dri_unlock(struct pipe_context *pipe)
{
dri_unlock((struct dri_context *)pipe->priv);
}
static boolean
st_dri_is_locked(struct pipe_context *pipe)
{
return ((struct dri_context *)pipe->priv)->isLocked;
}
static boolean
st_dri_lost_lock(struct pipe_context *pipe)
{
return ((struct dri_context *)pipe->priv)->wsLostLock;
}
static void
st_dri_clear_lost_lock(struct pipe_context *pipe)
{
((struct dri_context *)pipe->priv)->wsLostLock = FALSE;
}
struct dri1_api_lock_funcs dri1_lf = {
.lock = st_dri_lock,
.unlock = st_dri_unlock,
.is_locked = st_dri_is_locked,
.is_lock_lost = st_dri_lost_lock,
.clear_lost_lock = st_dri_clear_lost_lock
};
/* vim: set sw=3 ts=8 sts=3 expandtab: */
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