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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
/** @file intel_regions.h
*
* Structure definitions and prototypes for intel_region handling,
* which is the basic structure for rectangular collections of pixels
* stored in a drm_intel_bo.
*/
#include <stdbool.h>
#include <xf86drm.h>
#include "main/mtypes.h"
#include "intel_bufmgr.h"
#ifdef __cplusplus
extern "C" {
#endif
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
{
drm_intel_bo *bo; /**< buffer manager's buffer */
GLuint refcount; /**< Reference count for region */
GLuint cpp; /**< bytes per pixel */
GLuint width; /**< in pixels */
GLuint height; /**< in pixels */
GLuint pitch; /**< in pixels */
GLubyte *map; /**< only non-NULL when region is actually mapped */
GLuint map_refcount; /**< Reference count for mapping */
uint32_t tiling; /**< Which tiling mode the region is in */
uint32_t name; /**< Global name for the bo */
struct intel_screen *screen;
};
/* Allocate a refcounted region. Pointers to regions should only be
* copied by calling intel_reference_region().
*/
struct intel_region *intel_region_alloc(struct intel_screen *screen,
uint32_t tiling,
GLuint cpp, GLuint width,
GLuint height,
bool expect_accelerated_upload);
struct intel_region *
intel_region_alloc_for_handle(struct intel_screen *screen,
GLuint cpp,
GLuint width, GLuint height, GLuint pitch,
unsigned int handle, const char *name);
bool
intel_region_flink(struct intel_region *region, uint32_t *name);
void intel_region_reference(struct intel_region **dst,
struct intel_region *src);
void intel_region_release(struct intel_region **ib);
void intel_recreate_static_regions(struct intel_context *intel);
/**
* Map/unmap regions. This is refcounted also:
*
* \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT
*/
void *intel_region_map(struct intel_context *intel,
struct intel_region *ib,
GLbitfield mode);
void intel_region_unmap(struct intel_context *intel, struct intel_region *ib);
/* Copy rectangular sub-regions
*/
bool
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,
bool flip,
GLenum logicop);
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);
void
intel_region_get_tile_masks(struct intel_region *region,
uint32_t *mask_x, uint32_t *mask_y);
uint32_t
intel_region_get_aligned_offset(struct intel_region *region, uint32_t x,
uint32_t y);
struct __DRIimageRec {
struct intel_region *region;
GLenum internal_format;
uint32_t usage;
uint32_t dri_format;
GLuint format;
void *data;
};
#ifdef __cplusplus
}
#endif
#endif
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