+++ /dev/null
-/**************************************************************************
- *
- * Copyright 2007 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.
- *
- **************************************************************************/
-
-/**
- * \file
- * Implementation of malloc-based buffers to store data that can't be processed
- * by the hardware.
- *
- * \author Jose Fonseca <jfonseca@vmware.com>
- */
-
-
-#include "util/u_debug.h"
-#include "util/u_memory.h"
-#include "pb_buffer.h"
-#include "pb_bufmgr.h"
-
-
-struct malloc_buffer
-{
- struct pb_buffer base;
- void *data;
-};
-
-
-extern const struct pb_vtbl malloc_buffer_vtbl;
-
-static inline struct malloc_buffer *
-malloc_buffer(struct pb_buffer *buf)
-{
- assert(buf);
- if (!buf)
- return NULL;
- assert(buf->vtbl == &malloc_buffer_vtbl);
- return (struct malloc_buffer *)buf;
-}
-
-
-static void
-malloc_buffer_destroy(struct pb_buffer *buf)
-{
- align_free(malloc_buffer(buf)->data);
- FREE(buf);
-}
-
-
-static void *
-malloc_buffer_map(struct pb_buffer *buf,
- enum pb_usage_flags flags,
- void *flush_ctx)
-{
- return malloc_buffer(buf)->data;
-}
-
-
-static void
-malloc_buffer_unmap(struct pb_buffer *buf)
-{
- /* No-op */
-}
-
-
-static enum pipe_error
-malloc_buffer_validate(struct pb_buffer *buf,
- struct pb_validate *vl,
- enum pb_usage_flags flags)
-{
- assert(0);
- return PIPE_ERROR;
-}
-
-
-static void
-malloc_buffer_fence(struct pb_buffer *buf,
- struct pipe_fence_handle *fence)
-{
- assert(0);
-}
-
-
-static void
-malloc_buffer_get_base_buffer(struct pb_buffer *buf,
- struct pb_buffer **base_buf,
- pb_size *offset)
-{
- *base_buf = buf;
- *offset = 0;
-}
-
-
-const struct pb_vtbl
-malloc_buffer_vtbl = {
- malloc_buffer_destroy,
- malloc_buffer_map,
- malloc_buffer_unmap,
- malloc_buffer_validate,
- malloc_buffer_fence,
- malloc_buffer_get_base_buffer
-};
-
-
-struct pb_buffer *
-pb_malloc_buffer_create(pb_size size,
- const struct pb_desc *desc)
-{
- struct malloc_buffer *buf;
-
- /* TODO: do a single allocation */
-
- buf = CALLOC_STRUCT(malloc_buffer);
- if (!buf)
- return NULL;
-
- pipe_reference_init(&buf->base.reference, 1);
- buf->base.usage = desc->usage;
- buf->base.size = size;
- buf->base.alignment = desc->alignment;
- buf->base.vtbl = &malloc_buffer_vtbl;
-
- buf->data = align_malloc(size, desc->alignment < sizeof(void*) ? sizeof(void*) : desc->alignment);
- if(!buf->data) {
- FREE(buf);
- return NULL;
- }
-
- return &buf->base;
-}
-
-
-static struct pb_buffer *
-pb_malloc_bufmgr_create_buffer(struct pb_manager *mgr,
- pb_size size,
- const struct pb_desc *desc)
-{
- return pb_malloc_buffer_create(size, desc);
-}
-
-
-static void
-pb_malloc_bufmgr_flush(struct pb_manager *mgr)
-{
- /* No-op */
-}
-
-
-static void
-pb_malloc_bufmgr_destroy(struct pb_manager *mgr)
-{
- /* No-op */
-}
-
-
-static boolean
-pb_malloc_bufmgr_is_buffer_busy( struct pb_manager *mgr,
- struct pb_buffer *buf )
-{
- return FALSE;
-}
-
-
-static struct pb_manager
-pb_malloc_bufmgr = {
- pb_malloc_bufmgr_destroy,
- pb_malloc_bufmgr_create_buffer,
- pb_malloc_bufmgr_flush,
- pb_malloc_bufmgr_is_buffer_busy
-};
-
-
-struct pb_manager *
-pb_malloc_bufmgr_create(void)
-{
- return &pb_malloc_bufmgr;
-}
projects / mesa.git / commitdiff