i915_winsys.h revision c62f5c7e7bc3ed84677805b3800fbcfa93c419ea
1/************************************************************************** 2 * 3 * Copyright © 2009 Jakob Bornecrantz 4 * 5 * Permission is hereby granted, free of charge, to any person obtaining a 6 * copy of this software and associated documentation files (the "Software"), 7 * to deal in the Software without restriction, including without limitation 8 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 9 * and/or sell copies of the Software, and to permit persons to whom the 10 * Software is furnished to do so, subject to the following conditions: 11 * 12 * The above copyright notice and this permission notice (including the next 13 * paragraph) shall be included in all copies or substantial portions of the 14 * Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 20 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 21 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 **************************************************************************/ 25 26#ifndef I915_WINSYS_H 27#define I915_WINSYS_H 28 29#include "pipe/p_compiler.h" 30 31struct i915_winsys; 32struct i915_winsys_buffer; 33struct i915_winsys_batchbuffer; 34struct pipe_resource; 35struct pipe_fence_handle; 36struct winsys_handle; 37 38enum i915_winsys_buffer_usage 39{ 40 /* use on textures */ 41 I915_USAGE_RENDER = 0x01, 42 I915_USAGE_SAMPLER = 0x02, 43 I915_USAGE_2D_TARGET = 0x04, 44 I915_USAGE_2D_SOURCE = 0x08, 45 /* use on vertex */ 46 I915_USAGE_VERTEX = 0x10 47}; 48 49enum i915_winsys_buffer_type 50{ 51 I915_NEW_TEXTURE, 52 I915_NEW_SCANOUT, /**< a texture used for scanning out from */ 53 I915_NEW_VERTEX 54}; 55 56enum i915_winsys_buffer_tile 57{ 58 I915_TILE_NONE, 59 I915_TILE_X, 60 I915_TILE_Y 61}; 62 63struct i915_winsys_batchbuffer { 64 65 struct i915_winsys *iws; 66 67 /** 68 * Values exported to speed up the writing the batchbuffer, 69 * instead of having to go trough a accesor function for 70 * each dword written. 71 */ 72 /*{@*/ 73 uint8_t *map; 74 uint8_t *ptr; 75 size_t size; 76 77 size_t relocs; 78 size_t max_relocs; 79 /*@}*/ 80}; 81 82struct i915_winsys { 83 84 unsigned pci_id; /**< PCI ID for the device */ 85 86 /** 87 * Batchbuffer functions. 88 */ 89 /*@{*/ 90 /** 91 * Create a new batchbuffer. 92 */ 93 struct i915_winsys_batchbuffer * 94 (*batchbuffer_create)(struct i915_winsys *iws); 95 96 /** 97 * Emit a relocation to a buffer. 98 * Target position in batchbuffer is the same as ptr. 99 * 100 * @batch 101 * @reloc buffer address to be inserted into target. 102 * @usage how is the hardware going to use the buffer. 103 * @offset add this to the reloc buffers address 104 * @target buffer where to write the address, null for batchbuffer. 105 */ 106 int (*batchbuffer_reloc)(struct i915_winsys_batchbuffer *batch, 107 struct i915_winsys_buffer *reloc, 108 enum i915_winsys_buffer_usage usage, 109 unsigned offset); 110 111 /** 112 * Flush a bufferbatch. 113 */ 114 void (*batchbuffer_flush)(struct i915_winsys_batchbuffer *batch, 115 struct pipe_fence_handle **fence); 116 117 /** 118 * Destroy a batchbuffer. 119 */ 120 void (*batchbuffer_destroy)(struct i915_winsys_batchbuffer *batch); 121 /*@}*/ 122 123 124 /** 125 * Buffer functions. 126 */ 127 /*@{*/ 128 /** 129 * Create a buffer. 130 */ 131 struct i915_winsys_buffer * 132 (*buffer_create)(struct i915_winsys *iws, 133 unsigned size, 134 enum i915_winsys_buffer_type type); 135 136 /** 137 * Creates a buffer from a handle. 138 * Used to implement pipe_screen::resource_from_handle. 139 * Also provides the stride information needed for the 140 * texture via the stride argument. 141 */ 142 struct i915_winsys_buffer * 143 (*buffer_from_handle)(struct i915_winsys *iws, 144 struct winsys_handle *whandle, 145 unsigned *stride); 146 147 /** 148 * Used to implement pipe_screen::resource_get_handle. 149 * The winsys might need the stride information. 150 */ 151 boolean (*buffer_get_handle)(struct i915_winsys *iws, 152 struct i915_winsys_buffer *buffer, 153 struct winsys_handle *whandle, 154 unsigned stride); 155 156 /** 157 * Fence a buffer with a fence reg. 158 * Not to be confused with pipe_fence_handle. 159 */ 160 int (*buffer_set_fence_reg)(struct i915_winsys *iws, 161 struct i915_winsys_buffer *buffer, 162 unsigned stride, 163 enum i915_winsys_buffer_tile tile); 164 165 /** 166 * Map a buffer. 167 */ 168 void *(*buffer_map)(struct i915_winsys *iws, 169 struct i915_winsys_buffer *buffer, 170 boolean write); 171 172 /** 173 * Unmap a buffer. 174 */ 175 void (*buffer_unmap)(struct i915_winsys *iws, 176 struct i915_winsys_buffer *buffer); 177 178 /** 179 * Write to a buffer. 180 * 181 * Arguments follows pipe_buffer_write. 182 */ 183 int (*buffer_write)(struct i915_winsys *iws, 184 struct i915_winsys_buffer *dst, 185 size_t offset, 186 size_t size, 187 const void *data); 188 189 void (*buffer_destroy)(struct i915_winsys *iws, 190 struct i915_winsys_buffer *buffer); 191 /*@}*/ 192 193 194 /** 195 * Fence functions. 196 */ 197 /*@{*/ 198 /** 199 * Reference fence and set ptr to fence. 200 */ 201 void (*fence_reference)(struct i915_winsys *iws, 202 struct pipe_fence_handle **ptr, 203 struct pipe_fence_handle *fence); 204 205 /** 206 * Check if a fence has finished. 207 */ 208 int (*fence_signalled)(struct i915_winsys *iws, 209 struct pipe_fence_handle *fence); 210 211 /** 212 * Wait on a fence to finish. 213 */ 214 int (*fence_finish)(struct i915_winsys *iws, 215 struct pipe_fence_handle *fence); 216 /*@}*/ 217 218 219 /** 220 * Destroy the winsys. 221 */ 222 void (*destroy)(struct i915_winsys *iws); 223}; 224 225#endif 226