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 31 struct i915_winsys; 32 struct i915_winsys_buffer; 33 struct i915_winsys_batchbuffer; 34 struct pipe_resource; 35 struct pipe_fence_handle; 36 struct winsys_handle; 37 38 enum 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 49 enum 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 56 /* These need to be in sync with the definitions of libdrm-intel! */ 57 enum i915_winsys_buffer_tile 58 { 59 I915_TILE_NONE, 60 I915_TILE_X, 61 I915_TILE_Y 62 }; 63 64 struct i915_winsys_batchbuffer { 65 66 struct i915_winsys *iws; 67 68 /** 69 * Values exported to speed up the writing the batchbuffer, 70 * instead of having to go trough a accesor function for 71 * each dword written. 72 */ 73 /*{@*/ 74 uint8_t *map; 75 uint8_t *ptr; 76 size_t size; 77 78 size_t relocs; 79 /*@}*/ 80 }; 81 82 struct 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 * Validate buffers for usage in this batchbuffer. 98 * Does space-checking and asorted other book-keeping. 99 * 100 * @batch 101 * @buffers array to buffers to validate 102 * @num_of_buffers size of the passed array 103 */ 104 boolean (*validate_buffers)(struct i915_winsys_batchbuffer *batch, 105 struct i915_winsys_buffer **buffers, 106 int num_of_buffers); 107 108 /** 109 * Emit a relocation to a buffer. 110 * Target position in batchbuffer is the same as ptr. 111 * 112 * @batch 113 * @reloc buffer address to be inserted into target. 114 * @usage how is the hardware going to use the buffer. 115 * @offset add this to the reloc buffers address 116 * @target buffer where to write the address, null for batchbuffer. 117 * @fenced relocation needs a fence. 118 */ 119 int (*batchbuffer_reloc)(struct i915_winsys_batchbuffer *batch, 120 struct i915_winsys_buffer *reloc, 121 enum i915_winsys_buffer_usage usage, 122 unsigned offset, boolean fenced); 123 124 /** 125 * Flush a bufferbatch. 126 */ 127 void (*batchbuffer_flush)(struct i915_winsys_batchbuffer *batch, 128 struct pipe_fence_handle **fence); 129 130 /** 131 * Destroy a batchbuffer. 132 */ 133 void (*batchbuffer_destroy)(struct i915_winsys_batchbuffer *batch); 134 /*@}*/ 135 136 137 /** 138 * Buffer functions. 139 */ 140 /*@{*/ 141 /** 142 * Create a buffer. 143 */ 144 struct i915_winsys_buffer * 145 (*buffer_create)(struct i915_winsys *iws, 146 unsigned size, 147 enum i915_winsys_buffer_type type); 148 149 /** 150 * Create a tiled buffer. 151 * 152 * *stride, height are in bytes. The winsys tries to allocate the buffer with 153 * the tiling mode provide in *tiling. If tiling is no possible, *tiling will 154 * be set to I915_TILE_NONE. The calculated stride (incorporateing hw/kernel 155 * requirements) is always returned in *stride. 156 */ 157 struct i915_winsys_buffer * 158 (*buffer_create_tiled)(struct i915_winsys *iws, 159 unsigned *stride, unsigned height, 160 enum i915_winsys_buffer_tile *tiling, 161 enum i915_winsys_buffer_type type); 162 163 /** 164 * Creates a buffer from a handle. 165 * Used to implement pipe_screen::resource_from_handle. 166 * Also provides the stride information needed for the 167 * texture via the stride argument. 168 */ 169 struct i915_winsys_buffer * 170 (*buffer_from_handle)(struct i915_winsys *iws, 171 struct winsys_handle *whandle, 172 enum i915_winsys_buffer_tile *tiling, 173 unsigned *stride); 174 175 /** 176 * Used to implement pipe_screen::resource_get_handle. 177 * The winsys might need the stride information. 178 */ 179 boolean (*buffer_get_handle)(struct i915_winsys *iws, 180 struct i915_winsys_buffer *buffer, 181 struct winsys_handle *whandle, 182 unsigned stride); 183 184 /** 185 * Map a buffer. 186 */ 187 void *(*buffer_map)(struct i915_winsys *iws, 188 struct i915_winsys_buffer *buffer, 189 boolean write); 190 191 /** 192 * Unmap a buffer. 193 */ 194 void (*buffer_unmap)(struct i915_winsys *iws, 195 struct i915_winsys_buffer *buffer); 196 197 /** 198 * Write to a buffer. 199 * 200 * Arguments follows pipe_buffer_write. 201 */ 202 int (*buffer_write)(struct i915_winsys *iws, 203 struct i915_winsys_buffer *dst, 204 size_t offset, 205 size_t size, 206 const void *data); 207 208 void (*buffer_destroy)(struct i915_winsys *iws, 209 struct i915_winsys_buffer *buffer); 210 211 /** 212 * Check if a buffer is busy. 213 */ 214 boolean (*buffer_is_busy)(struct i915_winsys *iws, 215 struct i915_winsys_buffer *buffer); 216 /*@}*/ 217 218 219 /** 220 * Fence functions. 221 */ 222 /*@{*/ 223 /** 224 * Reference fence and set ptr to fence. 225 */ 226 void (*fence_reference)(struct i915_winsys *iws, 227 struct pipe_fence_handle **ptr, 228 struct pipe_fence_handle *fence); 229 230 /** 231 * Check if a fence has finished. 232 */ 233 int (*fence_signalled)(struct i915_winsys *iws, 234 struct pipe_fence_handle *fence); 235 236 /** 237 * Wait on a fence to finish. 238 */ 239 int (*fence_finish)(struct i915_winsys *iws, 240 struct pipe_fence_handle *fence); 241 /*@}*/ 242 243 244 /** 245 * Destroy the winsys. 246 */ 247 void (*destroy)(struct i915_winsys *iws); 248 }; 249 250 #endif 251
