1 /************************************************************************** 2 * 3 * Copyright 2006 Tungsten Graphics, Inc., Cedar Park, Texas. 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 TUNGSTEN GRAPHICS 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_buffer_object; 50 51 /** 52 * A layer on top of the bufmgr buffers that adds a few useful things: 53 * 54 * - Refcounting for local buffer references. 55 * - Refcounting for buffer maps 56 * - Buffer dimensions - pitch and height. 57 * - Blitter commands for copying 2D regions between buffers. (really???) 58 */ 59 struct intel_region 60 { 61 drm_intel_bo *bo; /**< buffer manager's buffer */ 62 GLuint refcount; /**< Reference count for region */ 63 GLuint cpp; /**< bytes per pixel */ 64 GLuint width; /**< in pixels */ 65 GLuint height; /**< in pixels */ 66 GLuint pitch; /**< in pixels */ 67 GLubyte *map; /**< only non-NULL when region is actually mapped */ 68 GLuint map_refcount; /**< Reference count for mapping */ 69 70 uint32_t tiling; /**< Which tiling mode the region is in */ 71 72 uint32_t name; /**< Global name for the bo */ 73 struct intel_screen *screen; 74 }; 75 76 77 /* Allocate a refcounted region. Pointers to regions should only be 78 * copied by calling intel_reference_region(). 79 */ 80 struct intel_region *intel_region_alloc(struct intel_screen *screen, 81 uint32_t tiling, 82 GLuint cpp, GLuint width, 83 GLuint height, 84 bool expect_accelerated_upload); 85 86 struct intel_region * 87 intel_region_alloc_for_handle(struct intel_screen *screen, 88 GLuint cpp, 89 GLuint width, GLuint height, GLuint pitch, 90 unsigned int handle, 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 /** 103 * Map/unmap regions. This is refcounted also: 104 * 105 * \param mode bitmask of GL_MAP_READ_BIT, GL_MAP_WRITE_BIT 106 */ 107 void *intel_region_map(struct intel_context *intel, 108 struct intel_region *ib, 109 GLbitfield mode); 110 111 void intel_region_unmap(struct intel_context *intel, struct intel_region *ib); 112 113 /* Copy rectangular sub-regions 114 */ 115 bool 116 intel_region_copy(struct intel_context *intel, 117 struct intel_region *dest, 118 GLuint dest_offset, 119 GLuint destx, GLuint desty, 120 struct intel_region *src, 121 GLuint src_offset, 122 GLuint srcx, GLuint srcy, GLuint width, GLuint height, 123 bool flip, 124 GLenum logicop); 125 126 void _mesa_copy_rect(GLubyte * dst, 127 GLuint cpp, 128 GLuint dst_pitch, 129 GLuint dst_x, 130 GLuint dst_y, 131 GLuint width, 132 GLuint height, 133 const GLubyte * src, 134 GLuint src_pitch, GLuint src_x, GLuint src_y); 135 136 void 137 intel_region_get_tile_masks(struct intel_region *region, 138 uint32_t *mask_x, uint32_t *mask_y, 139 bool map_stencil_as_y_tiled); 140 141 uint32_t 142 intel_region_get_aligned_offset(struct intel_region *region, uint32_t x, 143 uint32_t y, bool map_stencil_as_y_tiled); 144 145 /** 146 * Used with images created with image_from_names 147 * to help support planar images. 148 */ 149 struct intel_image_format { 150 int fourcc; 151 int components; 152 int nplanes; 153 struct { 154 int buffer_index; 155 int width_shift; 156 int height_shift; 157 uint32_t dri_format; 158 int cpp; 159 } planes[3]; 160 }; 161 162 struct __DRIimageRec { 163 struct intel_region *region; 164 GLenum internal_format; 165 uint32_t dri_format; 166 GLuint format; 167 uint32_t offset; 168 169 /* 170 * Need to save these here between calls to 171 * image_from_names and calls to image_from_planar. 172 */ 173 uint32_t strides[3]; 174 uint32_t offsets[3]; 175 struct intel_image_format *planar_format; 176 177 void *data; 178 }; 179 180 #ifdef __cplusplus 181 } 182 #endif 183 184 #endif 185