1 /************************************************************************** 2 * 3 * Copyright 2006 VMware, Inc. 4 * All Rights Reserved. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the 8 * "Software"), to deal in the Software without restriction, including 9 * without limitation the rights to use, copy, modify, merge, publish, 10 * distribute, sub license, and/or sell copies of the Software, and to 11 * permit persons to whom the Software is furnished to do so, subject to 12 * the following conditions: 13 * 14 * The above copyright notice and this permission notice (including the 15 * next paragraph) shall be included in all copies or substantial portions 16 * of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. 21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR 22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, 23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE 24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 25 * 26 **************************************************************************/ 27 28 #ifndef INTEL_REGIONS_H 29 #define INTEL_REGIONS_H 30 31 /** @file intel_regions.h 32 * 33 * Structure definitions and prototypes for intel_region handling, 34 * which is the basic structure for rectangular collections of pixels 35 * stored in a drm_intel_bo. 36 */ 37 38 #include <stdbool.h> 39 #include <xf86drm.h> 40 41 #include "main/mtypes.h" 42 #include "intel_bufmgr.h" 43 44 struct intel_context; 45 struct intel_screen; 46 struct intel_buffer_object; 47 48 /** 49 * A layer on top of the bufmgr buffers that adds a few useful things: 50 * 51 * - Refcounting for local buffer references. 52 * - Refcounting for buffer maps 53 * - Buffer dimensions - pitch and height. 54 * - Blitter commands for copying 2D regions between buffers. (really???) 55 */ 56 struct intel_region 57 { 58 drm_intel_bo *bo; /**< buffer manager's buffer */ 59 GLuint refcount; /**< Reference count for region */ 60 GLuint cpp; /**< bytes per pixel */ 61 GLuint width; /**< in pixels */ 62 GLuint height; /**< in pixels */ 63 GLuint pitch; /**< in bytes */ 64 65 uint32_t tiling; /**< Which tiling mode the region is in */ 66 67 uint32_t name; /**< Global name for the bo */ 68 }; 69 70 71 /* Allocate a refcounted region. Pointers to regions should only be 72 * copied by calling intel_reference_region(). 73 */ 74 struct intel_region *intel_region_alloc(struct intel_screen *screen, 75 uint32_t tiling, 76 GLuint cpp, GLuint width, 77 GLuint height, 78 bool expect_accelerated_upload); 79 80 struct intel_region * 81 intel_region_alloc_for_handle(struct intel_screen *screen, 82 GLuint cpp, 83 GLuint width, GLuint height, GLuint pitch, 84 unsigned int handle, const char *name); 85 86 struct intel_region * 87 intel_region_alloc_for_fd(struct intel_screen *screen, 88 GLuint cpp, 89 GLuint width, GLuint height, GLuint pitch, 90 GLuint size, int fd, const char *name); 91 92 bool 93 intel_region_flink(struct intel_region *region, uint32_t *name); 94 95 void intel_region_reference(struct intel_region **dst, 96 struct intel_region *src); 97 98 void intel_region_release(struct intel_region **ib); 99 100 void intel_recreate_static_regions(struct intel_context *intel); 101 102 void 103 intel_region_get_tile_masks(struct intel_region *region, 104 uint32_t *mask_x, uint32_t *mask_y); 105 106 uint32_t 107 intel_region_get_aligned_offset(struct intel_region *region, uint32_t x, 108 uint32_t y); 109 110 /** 111 * Used with images created with image_from_names 112 * to help support planar images. 113 */ 114 struct intel_image_format { 115 int fourcc; 116 int components; 117 int nplanes; 118 struct { 119 int buffer_index; 120 int width_shift; 121 int height_shift; 122 uint32_t dri_format; 123 int cpp; 124 } planes[3]; 125 }; 126 127 struct __DRIimageRec { 128 struct intel_region *region; 129 GLenum internal_format; 130 uint32_t dri_format; 131 GLuint format; 132 uint32_t offset; 133 134 /* 135 * Need to save these here between calls to 136 * image_from_names and calls to image_from_planar. 137 */ 138 uint32_t strides[3]; 139 uint32_t offsets[3]; 140 struct intel_image_format *planar_format; 141 142 /* particular miptree level */ 143 GLuint width; 144 GLuint height; 145 GLuint tile_x; 146 GLuint tile_y; 147 148 void *data; 149 }; 150 151 #endif 152