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/**************************************************************************
*
* Copyright 2006 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 INTEL_REGIONS_H
#define INTEL_REGIONS_H
#include "mtypes.h"
#include "bufmgr.h" /* for DBG! */
struct intel_context;
/* A layer on top of the bufmgr buffers that adds a few useful things:
*
* - Refcounting for local buffer references.
* - Refcounting for buffer maps
* - Buffer dimensions - pitch and height.
* - Blitter commands for copying 2D regions between buffers.
*/
struct intel_region {
struct buffer *buffer;
GLuint refcount;
GLuint cpp;
GLuint pitch;
GLuint height;
GLboolean tiled;
GLubyte *map;
GLuint map_refcount;
};
/* Allocate a refcounted region. Pointers to regions should only be
* copied by calling intel_reference_region().
*
* No support for dynamically allocating tiled regions at this point.
*/
struct intel_region *intel_region_alloc( struct intel_context *intel,
GLuint cpp,
GLuint pitch,
GLuint height );
void intel_region_reference( struct intel_region **dst,
struct intel_region *src );
void intel_region_release(struct intel_context *intel,
struct intel_region **ib );
/* Static regions may be tiled. The assumption is that the X server
* has set up fence registers to define tiled zones in agp and these
* buffers are within those zones. Tiling regions without fence
* registers is more work.
*/
struct intel_region *intel_region_create_static( struct intel_context *intel,
GLuint mem_type,
GLuint offset,
void *virtual,
GLuint cpp,
GLuint pitch,
GLuint height,
GLuint size,
GLboolean tiled );
/* Map/unmap regions. This is refcounted also:
*/
GLubyte *intel_region_map(struct intel_context *intel,
struct intel_region *ib);
void intel_region_unmap(struct intel_context *intel,
struct intel_region *ib);
/* Upload data to a rectangular sub-region
*/
GLboolean intel_region_data(struct intel_context *intel,
struct intel_region *dest,
GLuint dest_offset,
GLuint destx, GLuint desty,
const void *src, GLuint src_stride,
GLuint srcx, GLuint srcy,
GLuint width, GLuint height);
/* Copy rectangular sub-regions
*/
void intel_region_copy( struct intel_context *intel,
struct intel_region *dest,
GLuint dest_offset,
GLuint destx, GLuint desty,
struct intel_region *src,
GLuint src_offset,
GLuint srcx, GLuint srcy,
GLuint width, GLuint height );
/* Fill a rectangular sub-region
*/
void intel_region_fill( struct intel_context *intel,
struct intel_region *dest,
GLuint dest_offset,
GLuint destx, GLuint desty,
GLuint width, GLuint height,
GLuint color );
/***********************************************************************
* Misc utilities: move to somewhere generic
*/
void _mesa_copy_rect( GLubyte *dst,
GLuint cpp,
GLuint dst_pitch,
GLuint dst_x,
GLuint dst_y,
GLuint width,
GLuint height,
const GLubyte *src,
GLuint src_pitch,
GLuint src_x,
GLuint src_y );
#endif
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