152 lines
4.5 KiB
C
152 lines
4.5 KiB
C
/**************************************************************************
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*
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* Copyright 2006 VMware, Inc.
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* All Rights Reserved.
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*
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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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*
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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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* of the Software.
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*
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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 VMWARE 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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**************************************************************************/
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#ifndef INTEL_REGIONS_H
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#define INTEL_REGIONS_H
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/** @file intel_regions.h
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*
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* Structure definitions and prototypes for intel_region handling,
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* which is the basic structure for rectangular collections of pixels
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* stored in a drm_intel_bo.
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*/
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#include <stdbool.h>
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#include <xf86drm.h>
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#include "main/mtypes.h"
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#include "intel_bufmgr.h"
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struct intel_context;
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struct intel_screen;
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struct intel_buffer_object;
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/**
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* A layer on top of the bufmgr buffers that adds a few useful things:
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*
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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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*/
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struct intel_region
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{
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drm_intel_bo *bo; /**< buffer manager's buffer */
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GLuint refcount; /**< Reference count for region */
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GLuint cpp; /**< bytes per pixel */
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GLuint width; /**< in pixels */
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GLuint height; /**< in pixels */
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GLuint pitch; /**< in bytes */
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uint32_t tiling; /**< Which tiling mode the region is in */
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uint32_t name; /**< Global name for the bo */
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};
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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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*/
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struct intel_region *intel_region_alloc(struct intel_screen *screen,
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uint32_t tiling,
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GLuint cpp, GLuint width,
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GLuint height,
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bool expect_accelerated_upload);
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struct intel_region *
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intel_region_alloc_for_handle(struct intel_screen *screen,
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GLuint cpp,
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GLuint width, GLuint height, GLuint pitch,
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unsigned int handle, const char *name);
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struct intel_region *
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intel_region_alloc_for_fd(struct intel_screen *screen,
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GLuint cpp,
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GLuint width, GLuint height, GLuint pitch,
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GLuint size, int fd, const char *name);
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bool
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intel_region_flink(struct intel_region *region, uint32_t *name);
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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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void intel_recreate_static_regions(struct intel_context *intel);
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void
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intel_region_get_tile_masks(struct intel_region *region,
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uint32_t *mask_x, uint32_t *mask_y);
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uint32_t
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intel_region_get_aligned_offset(struct intel_region *region, uint32_t x,
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uint32_t y);
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/**
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* Used with images created with image_from_names
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* to help support planar images.
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*/
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struct intel_image_format {
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int fourcc;
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int components;
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int nplanes;
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struct {
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int buffer_index;
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int width_shift;
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int height_shift;
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uint32_t dri_format;
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int cpp;
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} planes[3];
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};
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struct __DRIimageRec {
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struct intel_region *region;
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GLenum internal_format;
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uint32_t dri_format;
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GLuint format;
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uint32_t offset;
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/*
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* Need to save these here between calls to
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* image_from_names and calls to image_from_planar.
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*/
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uint32_t strides[3];
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uint32_t offsets[3];
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struct intel_image_format *planar_format;
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/* particular miptree level */
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GLuint width;
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GLuint height;
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GLuint tile_x;
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GLuint tile_y;
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void *data;
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};
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#endif
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