diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-01-25 20:53:31 +0000 |
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committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-01-25 20:53:31 +0000 |
commit | 1e0d30a515e4cac891b6c590f12a33e0e8a8e295 (patch) | |
tree | 72ffec9e89bd0bd9202fcfc39f5e7bdf881adcf2 /src/mesa/pipe/pipebuffer/pb_buffer_handle.c | |
parent | 756d52ec12c41ee90ee9598dc9028cc134806bd2 (diff) |
gallium: rename pipe_buffer_handle to pipe_buffer, rework pipebuffer/ code
Provide an actual definition of the pipe_buffer struct, containing
the parameters used to create the buffer, and its refcount.
Shift refcounting buffers out of the winsys interface, similar to
surfaces & textures.
Rework pipebuffer/ to reflect the fact these changes, and also Michel's
reworking of the buffer interface.
Diffstat (limited to 'src/mesa/pipe/pipebuffer/pb_buffer_handle.c')
-rw-r--r-- | src/mesa/pipe/pipebuffer/pb_buffer_handle.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer_handle.c b/src/mesa/pipe/pipebuffer/pb_buffer_handle.c deleted file mode 100644 index 9aeff976f3..0000000000 --- a/src/mesa/pipe/pipebuffer/pb_buffer_handle.c +++ /dev/null @@ -1,140 +0,0 @@ -/************************************************************************** - * - * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas. - * 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 TUNGSTEN GRAPHICS 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. - * - **************************************************************************/ - -/** - * \file - * Drop-in implementation of the winsys driver functions for buffer handles. - * - * \author José Fonseca <jrfonseca@tungstengraphics.com> - */ - - -#include <assert.h> -#include <stdlib.h> - -#include "pipe/p_winsys.h" -#include "pipe/p_defines.h" - -#include "pb_buffer.h" -#include "pb_buffer_handle.h" - - -static struct pipe_buffer_handle * -buffer_handle_create(struct pipe_winsys *winsys, - unsigned alignment, - unsigned usage, - unsigned size) -{ - struct pipe_buffer_handle *handle; - - handle = (struct pipe_buffer_handle *)malloc(sizeof(struct pipe_buffer_handle)); - if(!handle) - return NULL; - - handle->refcount = 1; - handle->alignment = alignment; - handle->usage = usage; - handle->size = size; - - handle->buf = &null_buffer; - - return handle; -} - - -static struct pipe_buffer_handle * -buffer_handle_create_user(struct pipe_winsys *winsys, - void *data, unsigned size) -{ - struct pipe_buffer_handle *handle; - struct pipe_buffer *buf; - - handle = buffer_handle_create(winsys, 1, 0, size); - if(!handle) - return NULL; - - buf = client_buffer_create(data); - if(!buf) { - free(handle); - return NULL; - } - - buffer_handle_data(handle, buf); - - return handle; -} - - -static void * -buffer_handle_map(struct pipe_winsys *winsys, - struct pipe_buffer_handle *handle, - unsigned flags) -{ - return buffer_map(handle->buf, flags); -} - - -static void -buffer_handle_unmap(struct pipe_winsys *winsys, - struct pipe_buffer_handle *handle) -{ - buffer_unmap(handle->buf); -} - - -static void -buffer_handle_reference(struct pipe_winsys *winsys, - struct pipe_buffer_handle **dst, - struct pipe_buffer_handle *src) -{ - /* XXX: should this be thread safe? */ - - if (src) { - src->refcount++; - } - - if (*dst) { - (*dst)->refcount--; - if ((*dst)->refcount == 0) { - buffer_release((*dst)->buf); - free(*dst); - } - } - - *dst = src; -} - - -void -buffer_handle_init_winsys(struct pipe_winsys *winsys) -{ - winsys->buffer_create = buffer_handle_create; - winsys->user_buffer_create = buffer_handle_create_user; - winsys->buffer_map = buffer_handle_map; - winsys->buffer_unmap = buffer_handle_unmap; - winsys->buffer_reference = buffer_handle_reference; -} |