diff options
Diffstat (limited to 'src/mesa/drivers/dri/intel/intel_regions.h')
| -rw-r--r-- | src/mesa/drivers/dri/intel/intel_regions.h | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/src/mesa/drivers/dri/intel/intel_regions.h b/src/mesa/drivers/dri/intel/intel_regions.h new file mode 100644 index 0000000000..a0d9a9005f --- /dev/null +++ b/src/mesa/drivers/dri/intel/intel_regions.h @@ -0,0 +1,147 @@ +/************************************************************************** + * + * 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 +{ + dri_bo *buffer; /**< buffer manager's buffer */ + 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 */ + GLboolean tiled; /**< True if the region is X or Y-tiled. Used on 965. */ + + 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, + const char *name, + GLuint mem_type, + unsigned int bo_handle, + GLuint offset, + void *virtual, + GLuint cpp, + GLuint pitch, GLuint height, GLboolean tiled); +extern void +intel_region_update_static(intelScreenPrivate *intelScreen, + struct intel_region *region, + const char *name, + GLuint mem_type, + unsigned int bo_handle, + GLuint offset, + void *virtual, + GLuint cpp, GLuint pitch, GLuint height, + GLboolean tiled); + + +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); + +dri_bo *intel_region_buffer(intelScreenPrivate *intelScreen, + struct intel_region *region, + GLuint flag); + +#endif |