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/**************************************************************************
*
* 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.
*
**************************************************************************/
#ifndef I915_WINSYS_H
#define I915_WINSYS_H
#include "main/mtypes.h"
/* This is the interface that softpipe requires any window system
* hosting it to implement. This is the only include file in softpipe
* which is public.
*/
/* Pipe drivers are (meant to be!) independent of both GL and the
* window system. The window system provides a buffer manager and a
* set of additional hooks for things like command buffer submission,
* etc.
*
* There clearly has to be some agreement between the window system
* driver and the hardware driver about the format of command buffers,
* etc.
*/
struct pipe_buffer_handle;
struct i915_winsys {
/* The buffer manager is modeled after the dri_bugmgr interface,
* but this is the subset that i915 cares about. Remember that
* i915 gets to choose the interface it needs, and the window
* systems must then implement that interface (rather than the
* other way around...).
*
* I915 only really wants to make system memory allocations,
* right??
*/
struct pipe_buffer_handle *(*create_buffer)(struct i915_winsys *sws,
unsigned alignment );
void *(*buffer_map)( struct i915_winsys *sws,
struct pipe_buffer_handle *buf );
void (*buffer_unmap)( struct i915_winsys *sws,
struct pipe_buffer_handle *buf );
struct pipe_buffer_handle *(*buffer_reference)( struct i915_winsys *sws,
struct pipe_buffer_handle *buf );
void (*buffer_unreference)( struct i915_winsys *sws,
struct pipe_buffer_handle **buf );
void (*buffer_data)(struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned size, const void *data );
void (*buffer_subdata)(struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
const void *data);
void (*buffer_get_subdata)(struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned long offset,
unsigned long size,
void *data);
/* An over-simple batchbuffer mechanism. Will want to improve the
* performance of this, perhaps based on the cmdstream stuff. It
* would be pretty impossible to implement swz on top of this
* interface.
*
* Will also need additions/changes to implement static/dynamic
* indirect state.
*/
unsigned *(*batch_start)( struct i915_winsys *sws,
unsigned dwords,
unsigned relocs );
void (*batch_dword)( struct i915_winsys *sws,
unsigned dword );
void (*batch_reloc)( struct i915_winsys *sws,
struct pipe_buffer_handle *buf,
unsigned access_flags,
unsigned delta );
void (*batch_flush)( struct i915_winsys *sws );
/* Printf???
*/
void (*dpf)( const char *fmt, ... );
};
#define I915_BUFFER_ACCESS_WRITE 0x1
#define I915_BUFFER_ACCESS_READ 0x2
struct pipe_context *i915_create( struct i915_winsys * );
#endif
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