+++ /dev/null
-/**************************************************************************
- *
- * 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 "intel_screen.h"
-
-struct intel_context;
-struct intel_buffer_object;
-
-/**
- * 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. (really???)
- */
-struct intel_region
-{
- struct _DriBufferObject *buffer; /**< buffer manager's buffer ID */
- GLuint refcount; /**< Reference count for region */
- GLuint cpp; /**< bytes per pixel */
- GLuint pitch; /**< in pixels */
- GLuint height; /**< in pixels */
- GLubyte *map; /**< only non-NULL when region is actually mapped */
- GLuint map_refcount; /**< Reference count for mapping */
-
- GLuint draw_offset; /**< Offset of drawing address within the region */
-
- struct intel_buffer_object *pbo; /* zero-copy uploads */
-};
-
-
-/* Allocate a refcounted region. Pointers to regions should only be
- * copied by calling intel_reference_region().
- */
-struct intel_region *intel_region_alloc(intelScreenPrivate *intelScreen,
- GLuint cpp,
- GLuint pitch, GLuint height);
-
-void intel_region_reference(struct intel_region **dst,
- struct intel_region *src);
-
-void intel_region_release(struct intel_region **ib);
-
-extern struct intel_region
-*intel_region_create_static(intelScreenPrivate *intelScreen,
- GLuint mem_type,
- GLuint offset,
- void *virtual,
- GLuint cpp,
- GLuint pitch, GLuint height);
-extern void
-intel_region_update_static(intelScreenPrivate *intelScreen,
- struct intel_region *region,
- GLuint mem_type,
- GLuint offset,
- void *virtual,
- GLuint cpp, GLuint pitch, GLuint height);
-
-
-void intel_region_idle(intelScreenPrivate *intelScreen,
- struct intel_region *ib);
-
-/* Map/unmap regions. This is refcounted also:
- */
-GLubyte *intel_region_map(intelScreenPrivate *intelScreen,
- struct intel_region *ib);
-
-void intel_region_unmap(intelScreenPrivate *intelScreen, struct intel_region *ib);
-
-
-/* Upload data to a rectangular sub-region
- */
-void intel_region_data(intelScreenPrivate *intelScreen,
- 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(intelScreenPrivate *intelScreen,
- 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(intelScreenPrivate *intelScreen,
- struct intel_region *dest,
- GLuint dest_offset,
- GLuint destx, GLuint desty,
- GLuint width, GLuint height, GLuint color);
-
-/* Helpers for zerocopy uploads, particularly texture image uploads:
- */
-void intel_region_attach_pbo(intelScreenPrivate *intelScreen,
- struct intel_region *region,
- struct intel_buffer_object *pbo);
-void intel_region_release_pbo(intelScreenPrivate *intelScreen,
- struct intel_region *region);
-void intel_region_cow(intelScreenPrivate *intelScreen,
- struct intel_region *region);
-
-struct _DriBufferObject *intel_region_buffer(intelScreenPrivate *intelScreen,
- struct intel_region *region,
- GLuint flag);
-
-#endif