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 #ifdef __cplusplus 45 extern "C" { 46 #endif 47 48 struct intel_context; 49 struct intel_screen; 50 struct intel_buffer_object; 51 52 /** 53 * A layer on top of the bufmgr buffers that adds a few useful things: 54 * 55 * - Refcounting for local buffer references. 56 * - Refcounting for buffer maps 57 * - Buffer dimensions - pitch and height. 58 * - Blitter commands for copying 2D regions between buffers. (really???) 59 */ 60 struct intel_region 61 { 62 drm_intel_bo *bo; /**< buffer manager's buffer */ 63 GLuint refcount; /**< Reference count for region */ 64 GLuint cpp; /**< bytes per pixel */ 65 GLuint width; /**< in pixels */ 66 GLuint height; /**< in pixels */ 67 GLuint pitch; /**< in bytes */ 68 69 uint32_t tiling; /**< Which tiling mode the region is in */ 70 71 uint32_t name; /**< Global name for the bo */ 72 }; 73 74 75 /* Allocate a refcounted region. Pointers to regions should only be 76 * copied by calling intel_reference_region(). 77 */ 78 struct intel_region *intel_region_alloc(struct intel_screen *screen, 79 uint32_t tiling, 80 GLuint cpp, GLuint width, 81 GLuint height, 82 bool expect_accelerated_upload); 83 84 struct intel_region * 85 intel_region_alloc_for_handle(struct intel_screen *screen, 86 GLuint cpp, 87 GLuint width, GLuint height, GLuint pitch, 88 unsigned int handle, const char *name); 89 90 struct intel_region * 91 intel_region_alloc_for_fd(struct intel_screen *screen, 92 GLuint cpp, 93 GLuint width, GLuint height, GLuint pitch, 94 GLuint size, int fd, const char *name); 95 96 bool 97 intel_region_flink(struct intel_region *region, uint32_t *name); 98 99 void intel_region_reference(struct intel_region **dst, 100 struct intel_region *src); 101 102 void intel_region_release(struct intel_region **ib); 103 104 void intel_recreate_static_regions(struct intel_context *intel); 105 106 void 107 intel_region_get_tile_masks(struct intel_region *region, 108 uint32_t *mask_x, uint32_t *mask_y, 109 bool map_stencil_as_y_tiled); 110 111 uint32_t 112 intel_region_get_aligned_offset(struct intel_region *region, uint32_t x, 113 uint32_t y, bool map_stencil_as_y_tiled); 114 115 /** 116 * Used with images created with image_from_names 117 * to help support planar images. 118 */ 119 struct intel_image_format { 120 int fourcc; 121 int components; 122 int nplanes; 123 struct { 124 int buffer_index; 125 int width_shift; 126 int height_shift; 127 uint32_t dri_format; 128 int cpp; 129 } planes[3]; 130 }; 131 132 struct __DRIimageRec { 133 struct intel_region *region; 134 GLenum internal_format; 135 uint32_t dri_format; 136 GLuint format; 137 uint32_t offset; 138 139 /* 140 * Need to save these here between calls to 141 * image_from_names and calls to image_from_planar. 142 */ 143 uint32_t strides[3]; 144 uint32_t offsets[3]; 145 struct intel_image_format *planar_format; 146 147 /* particular miptree level */ 148 GLuint width; 149 GLuint height; 150 GLuint tile_x; 151 GLuint tile_y; 152 153 void *data; 154 }; 155 156 #ifdef __cplusplus 157 } 158 #endif 159 160 #endif 161