diff options
Diffstat (limited to 'src/gallium/state_trackers/dri/dri_context.c')
| -rw-r--r-- | src/gallium/state_trackers/dri/dri_context.c | 225 |
1 files changed, 225 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/dri/dri_context.c b/src/gallium/state_trackers/dri/dri_context.c new file mode 100644 index 00000000000..45eaec4ed39 --- /dev/null +++ b/src/gallium/state_trackers/dri/dri_context.c @@ -0,0 +1,225 @@ +/************************************************************************** + * + * 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 <[email protected]> + * Author: Jakob Bornecrantz <[email protected]> + */ + +#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: */ |