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Diffstat (limited to 'src/mesa/pipe/pipebuffer/pb_buffer.h')
-rw-r--r-- | src/mesa/pipe/pipebuffer/pb_buffer.h | 202 |
1 files changed, 0 insertions, 202 deletions
diff --git a/src/mesa/pipe/pipebuffer/pb_buffer.h b/src/mesa/pipe/pipebuffer/pb_buffer.h deleted file mode 100644 index 97beb5f72a9..00000000000 --- a/src/mesa/pipe/pipebuffer/pb_buffer.h +++ /dev/null @@ -1,202 +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 - * Generic code for buffers. - * - * Behind a pipe buffle handle there can be DMA buffers, client (or user) - * buffers, regular malloced buffers, etc. This file provides an abstract base - * buffer handle that allows the driver to cope with all those kinds of buffers - * in a more flexible way. - * - * There is no obligation of a winsys driver to use this library. And a pipe - * driver should be completly agnostic about it. - * - * \author Jos� Fonseca <[email protected]> - */ - -#ifndef PB_BUFFER_H_ -#define PB_BUFFER_H_ - - -#include "pipe/p_compiler.h" -#include "pipe/p_debug.h" -#include "pipe/p_state.h" -#include "pipe/p_inlines.h" - - -struct pb_vtbl; - -/** - * Buffer description. - * - * Used when allocating the buffer. - */ -struct pb_desc -{ - unsigned alignment; - unsigned usage; -}; - - -/** - * Base class for all pb_* buffers. - */ -struct pb_buffer -{ - struct pipe_buffer base; - - /** - * Pointer to the virtual function table. - * - * Avoid accessing this table directly. Use the inline functions below - * instead to avoid mistakes. - */ - const struct pb_vtbl *vtbl; -}; - - -/** - * Virtual function table for the buffer storage operations. - * - * Note that creation is not done through this table. - */ -struct pb_vtbl -{ - void (*destroy)( struct pb_buffer *buf ); - - /** - * Map the entire data store of a buffer object into the client's address. - * flags is bitmask of PIPE_BUFFER_FLAG_READ/WRITE. - */ - void *(*map)( struct pb_buffer *buf, - unsigned flags ); - - void (*unmap)( struct pb_buffer *buf ); - - /** - * Get the base buffer and the offset. - * - * A buffer can be subdivided in smaller buffers. This method should return - * the underlaying buffer, and the relative offset. - * - * Buffers without an underlaying base buffer should return themselves, with - * a zero offset. - * - * Note that this will increase the reference count of the base buffer. - */ - void (*get_base_buffer)( struct pb_buffer *buf, - struct pb_buffer **base_buf, - unsigned *offset ); -}; - - -static INLINE struct pipe_buffer * -pb_pipe_buffer( struct pb_buffer *pbuf ) -{ - assert(pbuf); - return &pbuf->base; -} - - -static INLINE struct pb_buffer * -pb_buffer( struct pipe_buffer *buf ) -{ - assert(buf); - /* Could add a magic cookie check on debug builds. - */ - return (struct pb_buffer *)buf; -} - - -/* Accessor functions for pb->vtbl: - */ -static INLINE void * -pb_map(struct pb_buffer *buf, - unsigned flags) -{ - assert(buf); - return buf->vtbl->map(buf, flags); -} - - -static INLINE void -pb_unmap(struct pb_buffer *buf) -{ - assert(buf); - buf->vtbl->unmap(buf); -} - - -static INLINE void -pb_get_base_buffer( struct pb_buffer *buf, - struct pb_buffer **base_buf, - unsigned *offset ) -{ - buf->vtbl->get_base_buffer(buf, base_buf, offset); -} - - -static INLINE void -pb_destroy(struct pb_buffer *buf) -{ - assert(buf); - buf->vtbl->destroy(buf); -} - - -/* XXX: thread safety issues! - */ -static INLINE void -pb_reference(struct pb_buffer **dst, - struct pb_buffer *src) -{ - if (src) - src->base.refcount++; - - if (*dst && --(*dst)->base.refcount == 0) - pb_destroy( *dst ); - - *dst = src; -} - - -/** - * Malloc-based buffer to store data that can't be used by the graphics - * hardware. - */ -struct pb_buffer * -pb_malloc_buffer_create(size_t size, - const struct pb_desc *desc); - - -void -pb_init_winsys(struct pipe_winsys *winsys); - - -#endif /*PB_BUFFER_H_*/ |