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/**************************************************************************
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* Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas.
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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**************************************************************************/
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#ifndef INTEL_REGIONS_H
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#define INTEL_REGIONS_H
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#include "intel_screen.h"
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struct intel_buffer_object;
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* A layer on top of the bufmgr buffers that adds a few useful things:
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* - Refcounting for local buffer references.
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* - Refcounting for buffer maps
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* - Buffer dimensions - pitch and height.
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* - Blitter commands for copying 2D regions between buffers. (really???)
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struct _DriBufferObject *buffer; /**< buffer manager's buffer ID */
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GLuint refcount; /**< Reference count for region */
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GLuint cpp; /**< bytes per pixel */
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GLuint pitch; /**< in pixels */
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GLuint height; /**< in pixels */
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GLubyte *map; /**< only non-NULL when region is actually mapped */
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GLuint map_refcount; /**< Reference count for mapping */
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GLuint draw_offset; /**< Offset of drawing address within the region */
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struct intel_buffer_object *pbo; /* zero-copy uploads */
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/* Allocate a refcounted region. Pointers to regions should only be
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* copied by calling intel_reference_region().
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struct intel_region *intel_region_alloc(intelScreenPrivate *intelScreen,
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GLuint pitch, GLuint height);
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void intel_region_reference(struct intel_region **dst,
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struct intel_region *src);
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void intel_region_release(struct intel_region **ib);
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extern struct intel_region
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*intel_region_create_static(intelScreenPrivate *intelScreen,
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GLuint pitch, GLuint height);
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intel_region_update_static(intelScreenPrivate *intelScreen,
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struct intel_region *region,
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GLuint cpp, GLuint pitch, GLuint height);
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void intel_region_idle(intelScreenPrivate *intelScreen,
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struct intel_region *ib);
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/* Map/unmap regions. This is refcounted also:
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GLubyte *intel_region_map(intelScreenPrivate *intelScreen,
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struct intel_region *ib);
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void intel_region_unmap(intelScreenPrivate *intelScreen, struct intel_region *ib);
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/* Upload data to a rectangular sub-region
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void intel_region_data(intelScreenPrivate *intelScreen,
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struct intel_region *dest,
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GLuint destx, GLuint desty,
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void *src, GLuint src_stride,
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GLuint srcx, GLuint srcy, GLuint width, GLuint height);
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/* Copy rectangular sub-regions
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void intel_region_copy(intelScreenPrivate *intelScreen,
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struct intel_region *dest,
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GLuint destx, GLuint desty,
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struct intel_region *src,
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GLuint srcx, GLuint srcy, GLuint width, GLuint height);
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/* Fill a rectangular sub-region
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void intel_region_fill(intelScreenPrivate *intelScreen,
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struct intel_region *dest,
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GLuint destx, GLuint desty,
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GLuint width, GLuint height, GLuint color);
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/* Helpers for zerocopy uploads, particularly texture image uploads:
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void intel_region_attach_pbo(intelScreenPrivate *intelScreen,
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struct intel_region *region,
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struct intel_buffer_object *pbo);
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void intel_region_release_pbo(intelScreenPrivate *intelScreen,
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struct intel_region *region);
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void intel_region_cow(intelScreenPrivate *intelScreen,
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struct intel_region *region);
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struct _DriBufferObject *intel_region_buffer(intelScreenPrivate *intelScreen,
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struct intel_region *region,
added
removed
src/mesa/drivers/dri/i915tex/intel_regions.h
