diff options
author | Keith Whitwell <keith@tungstengraphics.com> | 2008-02-15 11:15:47 +0000 |
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committer | Keith Whitwell <keith@tungstengraphics.com> | 2008-02-15 11:15:47 +0000 |
commit | 6ac2c1cc0cd1253ba2014d459010032127f185ec (patch) | |
tree | 6348de9de19e7394800a983c8c614566d22b870b /src/gallium/aux/pipebuffer/pb_buffer_malloc.c | |
parent | c04a7f8929d674971a472ffa4d3a31200c22aa5a (diff) | |
parent | 6d3831b11d9f5aaba61cc2fb8ade61437ad7c335 (diff) |
Merge commit 'origin/gallium-0.1' into gallium-0.1
Conflicts:
src/gallium/drivers/softpipe/sp_quad_fs.c
src/gallium/drivers/softpipe/sp_state.h
src/gallium/drivers/softpipe/sp_state_fs.c
Diffstat (limited to 'src/gallium/aux/pipebuffer/pb_buffer_malloc.c')
-rw-r--r-- | src/gallium/aux/pipebuffer/pb_buffer_malloc.c | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/src/gallium/aux/pipebuffer/pb_buffer_malloc.c b/src/gallium/aux/pipebuffer/pb_buffer_malloc.c new file mode 100644 index 0000000000..9e8244f909 --- /dev/null +++ b/src/gallium/aux/pipebuffer/pb_buffer_malloc.c @@ -0,0 +1,127 @@ +/************************************************************************** + * + * 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 + * Implementation of malloc-based buffers to store data that can't be processed + * by the hardware. + * + * \author José Fonseca <jrfonseca@tungstengraphics.com> + */ + + +#include "pipe/p_debug.h" +#include "pipe/p_util.h" +#include "pb_buffer.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); + 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, + unsigned flags) +{ + return malloc_buffer(buf)->data; +} + + +static void +malloc_buffer_unmap(struct pb_buffer *buf) +{ + /* No-op */ +} + + +static void +malloc_buffer_get_base_buffer(struct pb_buffer *buf, + struct pb_buffer **base_buf, + unsigned *offset) +{ + *base_buf = buf; + *offset = 0; +} + + +const struct pb_vtbl +malloc_buffer_vtbl = { + malloc_buffer_destroy, + malloc_buffer_map, + malloc_buffer_unmap, + malloc_buffer_get_base_buffer +}; + + +struct pb_buffer * +pb_malloc_buffer_create(size_t size, + const struct pb_desc *desc) +{ + struct malloc_buffer *buf; + + /* TODO: do a single allocation */ + + buf = CALLOC_STRUCT(malloc_buffer); + if(!buf) + return NULL; + + buf->base.base.refcount = 1; + buf->base.base.alignment = desc->alignment; + buf->base.base.usage = desc->usage; + buf->base.base.size = size; + buf->base.vtbl = &malloc_buffer_vtbl; + + buf->data = align_malloc(size, desc->alignment < sizeof(void*) ? sizeof(void*) : desc->alignment); + if(!buf->data) { + align_free(buf); + return NULL; + } + + return &buf->base; +} |