1 /* 2 * Copyright © 2011 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 22 * DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: 25 * Benjamin Franzke <benjaminfranzke@googlemail.com> 26 */ 27 28 #ifndef _GBM_H_ 29 #define _GBM_H_ 30 31 #define __GBM__ 1 32 33 #include <stddef.h> 34 #include <stdint.h> 35 36 #ifdef __cplusplus 37 extern "C" { 38 #endif 39 40 41 /** 42 * \file gbm.h 43 * \brief Generic Buffer Manager 44 */ 45 46 struct gbm_device; 47 struct gbm_bo; 48 struct gbm_surface; 49 50 /** 51 * \mainpage The Generic Buffer Manager 52 * 53 * This module provides an abstraction that the caller can use to request a 54 * buffer from the underlying memory management system for the platform. 55 * 56 * This allows the creation of portable code whilst still allowing access to 57 * the underlying memory manager. 58 */ 59 60 /** 61 * Abstraction representing the handle to a buffer allocated by the 62 * manager 63 */ 64 union gbm_bo_handle { 65 void *ptr; 66 int32_t s32; 67 uint32_t u32; 68 int64_t s64; 69 uint64_t u64; 70 }; 71 72 /** Format of the allocated buffer */ 73 enum gbm_bo_format { 74 /** RGB with 8 bits per channel in a 32 bit value */ 75 GBM_BO_FORMAT_XRGB8888, 76 /** ARGB with 8 bits per channel in a 32 bit value */ 77 GBM_BO_FORMAT_ARGB8888 78 }; 79 80 81 /** 82 * The FourCC format codes are taken from the drm_fourcc.h definition, and 83 * re-namespaced. New GBM formats must not be added, unless they are 84 * identical ports from drm_fourcc. 85 */ 86 #define __gbm_fourcc_code(a,b,c,d) ((uint32_t)(a) | ((uint32_t)(b) << 8) | \ 87 ((uint32_t)(c) << 16) | ((uint32_t)(d) << 24)) 88 89 #define GBM_FORMAT_BIG_ENDIAN (1<<31) /* format is big endian instead of little endian */ 90 91 /* color index */ 92 #define GBM_FORMAT_C8 __gbm_fourcc_code('C', '8', ' ', ' ') /* [7:0] C */ 93 94 /* 8 bpp Red */ 95 #define GBM_FORMAT_R8 __gbm_fourcc_code('R', '8', ' ', ' ') /* [7:0] R */ 96 97 /* 16 bpp Red */ 98 #define GBM_FORMAT_R16 __gbm_fourcc_code('R', '1', '6', ' ') /* [15:0] R little endian */ 99 100 /* 16 bpp RG */ 101 #define GBM_FORMAT_GR88 __gbm_fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */ 102 103 /* 32 bpp RG */ 104 #define GBM_FORMAT_RG1616 __gbm_fourcc_code('R', 'G', '3', '2') /* [31:0] R:G 16:16 little endian */ 105 #define GBM_FORMAT_GR1616 __gbm_fourcc_code('G', 'R', '3', '2') /* [31:0] G:R 16:16 little endian */ 106 107 /* 8 bpp RGB */ 108 #define GBM_FORMAT_RGB332 __gbm_fourcc_code('R', 'G', 'B', '8') /* [7:0] R:G:B 3:3:2 */ 109 #define GBM_FORMAT_BGR233 __gbm_fourcc_code('B', 'G', 'R', '8') /* [7:0] B:G:R 2:3:3 */ 110 111 /* 16 bpp RGB */ 112 #define GBM_FORMAT_XRGB4444 __gbm_fourcc_code('X', 'R', '1', '2') /* [15:0] x:R:G:B 4:4:4:4 little endian */ 113 #define GBM_FORMAT_XBGR4444 __gbm_fourcc_code('X', 'B', '1', '2') /* [15:0] x:B:G:R 4:4:4:4 little endian */ 114 #define GBM_FORMAT_RGBX4444 __gbm_fourcc_code('R', 'X', '1', '2') /* [15:0] R:G:B:x 4:4:4:4 little endian */ 115 #define GBM_FORMAT_BGRX4444 __gbm_fourcc_code('B', 'X', '1', '2') /* [15:0] B:G:R:x 4:4:4:4 little endian */ 116 117 #define GBM_FORMAT_ARGB4444 __gbm_fourcc_code('A', 'R', '1', '2') /* [15:0] A:R:G:B 4:4:4:4 little endian */ 118 #define GBM_FORMAT_ABGR4444 __gbm_fourcc_code('A', 'B', '1', '2') /* [15:0] A:B:G:R 4:4:4:4 little endian */ 119 #define GBM_FORMAT_RGBA4444 __gbm_fourcc_code('R', 'A', '1', '2') /* [15:0] R:G:B:A 4:4:4:4 little endian */ 120 #define GBM_FORMAT_BGRA4444 __gbm_fourcc_code('B', 'A', '1', '2') /* [15:0] B:G:R:A 4:4:4:4 little endian */ 121 122 #define GBM_FORMAT_XRGB1555 __gbm_fourcc_code('X', 'R', '1', '5') /* [15:0] x:R:G:B 1:5:5:5 little endian */ 123 #define GBM_FORMAT_XBGR1555 __gbm_fourcc_code('X', 'B', '1', '5') /* [15:0] x:B:G:R 1:5:5:5 little endian */ 124 #define GBM_FORMAT_RGBX5551 __gbm_fourcc_code('R', 'X', '1', '5') /* [15:0] R:G:B:x 5:5:5:1 little endian */ 125 #define GBM_FORMAT_BGRX5551 __gbm_fourcc_code('B', 'X', '1', '5') /* [15:0] B:G:R:x 5:5:5:1 little endian */ 126 127 #define GBM_FORMAT_ARGB1555 __gbm_fourcc_code('A', 'R', '1', '5') /* [15:0] A:R:G:B 1:5:5:5 little endian */ 128 #define GBM_FORMAT_ABGR1555 __gbm_fourcc_code('A', 'B', '1', '5') /* [15:0] A:B:G:R 1:5:5:5 little endian */ 129 #define GBM_FORMAT_RGBA5551 __gbm_fourcc_code('R', 'A', '1', '5') /* [15:0] R:G:B:A 5:5:5:1 little endian */ 130 #define GBM_FORMAT_BGRA5551 __gbm_fourcc_code('B', 'A', '1', '5') /* [15:0] B:G:R:A 5:5:5:1 little endian */ 131 132 #define GBM_FORMAT_RGB565 __gbm_fourcc_code('R', 'G', '1', '6') /* [15:0] R:G:B 5:6:5 little endian */ 133 #define GBM_FORMAT_BGR565 __gbm_fourcc_code('B', 'G', '1', '6') /* [15:0] B:G:R 5:6:5 little endian */ 134 135 /* 24 bpp RGB */ 136 #define GBM_FORMAT_RGB888 __gbm_fourcc_code('R', 'G', '2', '4') /* [23:0] R:G:B little endian */ 137 #define GBM_FORMAT_BGR888 __gbm_fourcc_code('B', 'G', '2', '4') /* [23:0] B:G:R little endian */ 138 139 /* 32 bpp RGB */ 140 #define GBM_FORMAT_XRGB8888 __gbm_fourcc_code('X', 'R', '2', '4') /* [31:0] x:R:G:B 8:8:8:8 little endian */ 141 #define GBM_FORMAT_XBGR8888 __gbm_fourcc_code('X', 'B', '2', '4') /* [31:0] x:B:G:R 8:8:8:8 little endian */ 142 #define GBM_FORMAT_RGBX8888 __gbm_fourcc_code('R', 'X', '2', '4') /* [31:0] R:G:B:x 8:8:8:8 little endian */ 143 #define GBM_FORMAT_BGRX8888 __gbm_fourcc_code('B', 'X', '2', '4') /* [31:0] B:G:R:x 8:8:8:8 little endian */ 144 145 #define GBM_FORMAT_ARGB8888 __gbm_fourcc_code('A', 'R', '2', '4') /* [31:0] A:R:G:B 8:8:8:8 little endian */ 146 #define GBM_FORMAT_ABGR8888 __gbm_fourcc_code('A', 'B', '2', '4') /* [31:0] A:B:G:R 8:8:8:8 little endian */ 147 #define GBM_FORMAT_RGBA8888 __gbm_fourcc_code('R', 'A', '2', '4') /* [31:0] R:G:B:A 8:8:8:8 little endian */ 148 #define GBM_FORMAT_BGRA8888 __gbm_fourcc_code('B', 'A', '2', '4') /* [31:0] B:G:R:A 8:8:8:8 little endian */ 149 150 #define GBM_FORMAT_XRGB2101010 __gbm_fourcc_code('X', 'R', '3', '0') /* [31:0] x:R:G:B 2:10:10:10 little endian */ 151 #define GBM_FORMAT_XBGR2101010 __gbm_fourcc_code('X', 'B', '3', '0') /* [31:0] x:B:G:R 2:10:10:10 little endian */ 152 #define GBM_FORMAT_RGBX1010102 __gbm_fourcc_code('R', 'X', '3', '0') /* [31:0] R:G:B:x 10:10:10:2 little endian */ 153 #define GBM_FORMAT_BGRX1010102 __gbm_fourcc_code('B', 'X', '3', '0') /* [31:0] B:G:R:x 10:10:10:2 little endian */ 154 155 #define GBM_FORMAT_ARGB2101010 __gbm_fourcc_code('A', 'R', '3', '0') /* [31:0] A:R:G:B 2:10:10:10 little endian */ 156 #define GBM_FORMAT_ABGR2101010 __gbm_fourcc_code('A', 'B', '3', '0') /* [31:0] A:B:G:R 2:10:10:10 little endian */ 157 #define GBM_FORMAT_RGBA1010102 __gbm_fourcc_code('R', 'A', '3', '0') /* [31:0] R:G:B:A 10:10:10:2 little endian */ 158 #define GBM_FORMAT_BGRA1010102 __gbm_fourcc_code('B', 'A', '3', '0') /* [31:0] B:G:R:A 10:10:10:2 little endian */ 159 160 /* 64 bpp RGB */ 161 #define GBM_FORMAT_XBGR16161616 __gbm_fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */ 162 163 #define GBM_FORMAT_ABGR16161616 __gbm_fourcc_code('A', 'B', '4', '8') /* [63:0] A:B:G:R 16:16:16:16 little endian */ 164 165 /* 166 * Floating point 64bpp RGB 167 * IEEE 754-2008 binary16 half-precision float 168 * [15:0] sign:exponent:mantissa 1:5:10 169 */ 170 #define GBM_FORMAT_XBGR16161616F __gbm_fourcc_code('X', 'B', '4', 'H') /* [63:0] x:B:G:R 16:16:16:16 little endian */ 171 172 #define GBM_FORMAT_ABGR16161616F __gbm_fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */ 173 174 /* packed YCbCr */ 175 #define GBM_FORMAT_YUYV __gbm_fourcc_code('Y', 'U', 'Y', 'V') /* [31:0] Cr0:Y1:Cb0:Y0 8:8:8:8 little endian */ 176 #define GBM_FORMAT_YVYU __gbm_fourcc_code('Y', 'V', 'Y', 'U') /* [31:0] Cb0:Y1:Cr0:Y0 8:8:8:8 little endian */ 177 #define GBM_FORMAT_UYVY __gbm_fourcc_code('U', 'Y', 'V', 'Y') /* [31:0] Y1:Cr0:Y0:Cb0 8:8:8:8 little endian */ 178 #define GBM_FORMAT_VYUY __gbm_fourcc_code('V', 'Y', 'U', 'Y') /* [31:0] Y1:Cb0:Y0:Cr0 8:8:8:8 little endian */ 179 180 #define GBM_FORMAT_AYUV __gbm_fourcc_code('A', 'Y', 'U', 'V') /* [31:0] A:Y:Cb:Cr 8:8:8:8 little endian */ 181 182 /* 183 * 2 plane YCbCr 184 * index 0 = Y plane, [7:0] Y 185 * index 1 = Cr:Cb plane, [15:0] Cr:Cb little endian 186 * or 187 * index 1 = Cb:Cr plane, [15:0] Cb:Cr little endian 188 */ 189 #define GBM_FORMAT_NV12 __gbm_fourcc_code('N', 'V', '1', '2') /* 2x2 subsampled Cr:Cb plane */ 190 #define GBM_FORMAT_NV21 __gbm_fourcc_code('N', 'V', '2', '1') /* 2x2 subsampled Cb:Cr plane */ 191 #define GBM_FORMAT_NV16 __gbm_fourcc_code('N', 'V', '1', '6') /* 2x1 subsampled Cr:Cb plane */ 192 #define GBM_FORMAT_NV61 __gbm_fourcc_code('N', 'V', '6', '1') /* 2x1 subsampled Cb:Cr plane */ 193 194 /* 195 * 3 plane YCbCr 196 * index 0: Y plane, [7:0] Y 197 * index 1: Cb plane, [7:0] Cb 198 * index 2: Cr plane, [7:0] Cr 199 * or 200 * index 1: Cr plane, [7:0] Cr 201 * index 2: Cb plane, [7:0] Cb 202 */ 203 #define GBM_FORMAT_YUV410 __gbm_fourcc_code('Y', 'U', 'V', '9') /* 4x4 subsampled Cb (1) and Cr (2) planes */ 204 #define GBM_FORMAT_YVU410 __gbm_fourcc_code('Y', 'V', 'U', '9') /* 4x4 subsampled Cr (1) and Cb (2) planes */ 205 #define GBM_FORMAT_YUV411 __gbm_fourcc_code('Y', 'U', '1', '1') /* 4x1 subsampled Cb (1) and Cr (2) planes */ 206 #define GBM_FORMAT_YVU411 __gbm_fourcc_code('Y', 'V', '1', '1') /* 4x1 subsampled Cr (1) and Cb (2) planes */ 207 #define GBM_FORMAT_YUV420 __gbm_fourcc_code('Y', 'U', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes */ 208 #define GBM_FORMAT_YVU420 __gbm_fourcc_code('Y', 'V', '1', '2') /* 2x2 subsampled Cr (1) and Cb (2) planes */ 209 #define GBM_FORMAT_YUV422 __gbm_fourcc_code('Y', 'U', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes */ 210 #define GBM_FORMAT_YVU422 __gbm_fourcc_code('Y', 'V', '1', '6') /* 2x1 subsampled Cr (1) and Cb (2) planes */ 211 #define GBM_FORMAT_YUV444 __gbm_fourcc_code('Y', 'U', '2', '4') /* non-subsampled Cb (1) and Cr (2) planes */ 212 #define GBM_FORMAT_YVU444 __gbm_fourcc_code('Y', 'V', '2', '4') /* non-subsampled Cr (1) and Cb (2) planes */ 213 214 struct gbm_format_name_desc { 215 char name[5]; 216 }; 217 218 /** 219 * Flags to indicate the intended use for the buffer - these are passed into 220 * gbm_bo_create(). The caller must set the union of all the flags that are 221 * appropriate 222 * 223 * \sa Use gbm_device_is_format_supported() to check if the combination of format 224 * and use flags are supported 225 */ 226 enum gbm_bo_flags { 227 /** 228 * Buffer is going to be presented to the screen using an API such as KMS 229 */ 230 GBM_BO_USE_SCANOUT = (1 << 0), 231 /** 232 * Buffer is going to be used as cursor 233 */ 234 GBM_BO_USE_CURSOR = (1 << 1), 235 /** 236 * Deprecated 237 */ 238 GBM_BO_USE_CURSOR_64X64 = GBM_BO_USE_CURSOR, 239 /** 240 * Buffer is to be used for rendering - for example it is going to be used 241 * as the storage for a color buffer 242 */ 243 GBM_BO_USE_RENDERING = (1 << 2), 244 /** 245 * Buffer can be used for gbm_bo_write. This is guaranteed to work 246 * with GBM_BO_USE_CURSOR, but may not work for other combinations. 247 */ 248 GBM_BO_USE_WRITE = (1 << 3), 249 /** 250 * Buffer is linear, i.e. not tiled. 251 */ 252 GBM_BO_USE_LINEAR = (1 << 4), 253 /** 254 * Buffer is protected, i.e. encrypted and not readable by CPU or any 255 * other non-secure / non-trusted components nor by non-trusted OpenGL, 256 * OpenCL, and Vulkan applications. 257 */ 258 GBM_BO_USE_PROTECTED = (1 << 5), 259 260 /** 261 * The buffer will be used for front buffer rendering. On some 262 * platforms this may (for example) disable framebuffer compression 263 * to avoid problems with compression flags data being out of sync 264 * with pixel data. 265 */ 266 GBM_BO_USE_FRONT_RENDERING = (1 << 6), 267 }; 268 269 int 270 gbm_device_get_fd(struct gbm_device *gbm); 271 272 const char * 273 gbm_device_get_backend_name(struct gbm_device *gbm); 274 275 int 276 gbm_device_is_format_supported(struct gbm_device *gbm, 277 uint32_t format, uint32_t flags); 278 279 int 280 gbm_device_get_format_modifier_plane_count(struct gbm_device *gbm, 281 uint32_t format, 282 uint64_t modifier); 283 284 void 285 gbm_device_destroy(struct gbm_device *gbm); 286 287 struct gbm_device * 288 gbm_create_device(int fd); 289 290 struct gbm_bo * 291 gbm_bo_create(struct gbm_device *gbm, 292 uint32_t width, uint32_t height, 293 uint32_t format, uint32_t flags); 294 295 struct gbm_bo * 296 gbm_bo_create_with_modifiers(struct gbm_device *gbm, 297 uint32_t width, uint32_t height, 298 uint32_t format, 299 const uint64_t *modifiers, 300 const unsigned int count); 301 302 struct gbm_bo * 303 gbm_bo_create_with_modifiers2(struct gbm_device *gbm, 304 uint32_t width, uint32_t height, 305 uint32_t format, 306 const uint64_t *modifiers, 307 const unsigned int count, 308 uint32_t flags); 309 310 #define GBM_BO_IMPORT_WL_BUFFER 0x5501 311 #define GBM_BO_IMPORT_EGL_IMAGE 0x5502 312 #define GBM_BO_IMPORT_FD 0x5503 313 #define GBM_BO_IMPORT_FD_MODIFIER 0x5504 314 315 struct gbm_import_fd_data { 316 int fd; 317 uint32_t width; 318 uint32_t height; 319 uint32_t stride; 320 uint32_t format; 321 }; 322 323 #define GBM_MAX_PLANES 4 324 325 struct gbm_import_fd_modifier_data { 326 uint32_t width; 327 uint32_t height; 328 uint32_t format; 329 uint32_t num_fds; 330 int fds[GBM_MAX_PLANES]; 331 int strides[GBM_MAX_PLANES]; 332 int offsets[GBM_MAX_PLANES]; 333 uint64_t modifier; 334 }; 335 336 struct gbm_bo * 337 gbm_bo_import(struct gbm_device *gbm, uint32_t type, 338 void *buffer, uint32_t flags); 339 340 /** 341 * Flags to indicate the type of mapping for the buffer - these are 342 * passed into gbm_bo_map(). The caller must set the union of all the 343 * flags that are appropriate. 344 * 345 * These flags are independent of the GBM_BO_USE_* creation flags. However, 346 * mapping the buffer may require copying to/from a staging buffer. 347 * 348 * See also: pipe_map_flags 349 */ 350 enum gbm_bo_transfer_flags { 351 /** 352 * Buffer contents read back (or accessed directly) at transfer 353 * create time. 354 */ 355 GBM_BO_TRANSFER_READ = (1 << 0), 356 /** 357 * Buffer contents will be written back at unmap time 358 * (or modified as a result of being accessed directly). 359 */ 360 GBM_BO_TRANSFER_WRITE = (1 << 1), 361 /** 362 * Read/modify/write 363 */ 364 GBM_BO_TRANSFER_READ_WRITE = (GBM_BO_TRANSFER_READ | GBM_BO_TRANSFER_WRITE), 365 }; 366 367 void * 368 gbm_bo_map(struct gbm_bo *bo, 369 uint32_t x, uint32_t y, uint32_t width, uint32_t height, 370 uint32_t flags, uint32_t *stride, void **map_data); 371 372 void 373 gbm_bo_unmap(struct gbm_bo *bo, void *map_data); 374 375 uint32_t 376 gbm_bo_get_width(struct gbm_bo *bo); 377 378 uint32_t 379 gbm_bo_get_height(struct gbm_bo *bo); 380 381 uint32_t 382 gbm_bo_get_stride(struct gbm_bo *bo); 383 384 uint32_t 385 gbm_bo_get_stride_for_plane(struct gbm_bo *bo, int plane); 386 387 uint32_t 388 gbm_bo_get_format(struct gbm_bo *bo); 389 390 uint32_t 391 gbm_bo_get_bpp(struct gbm_bo *bo); 392 393 uint32_t 394 gbm_bo_get_offset(struct gbm_bo *bo, int plane); 395 396 struct gbm_device * 397 gbm_bo_get_device(struct gbm_bo *bo); 398 399 union gbm_bo_handle 400 gbm_bo_get_handle(struct gbm_bo *bo); 401 402 int 403 gbm_bo_get_fd(struct gbm_bo *bo); 404 405 uint64_t 406 gbm_bo_get_modifier(struct gbm_bo *bo); 407 408 int 409 gbm_bo_get_plane_count(struct gbm_bo *bo); 410 411 union gbm_bo_handle 412 gbm_bo_get_handle_for_plane(struct gbm_bo *bo, int plane); 413 414 int 415 gbm_bo_get_fd_for_plane(struct gbm_bo *bo, int plane); 416 417 int 418 gbm_bo_write(struct gbm_bo *bo, const void *buf, size_t count); 419 420 void 421 gbm_bo_set_user_data(struct gbm_bo *bo, void *data, 422 void (*destroy_user_data)(struct gbm_bo *, void *)); 423 424 void * 425 gbm_bo_get_user_data(struct gbm_bo *bo); 426 427 void 428 gbm_bo_destroy(struct gbm_bo *bo); 429 430 struct gbm_surface * 431 gbm_surface_create(struct gbm_device *gbm, 432 uint32_t width, uint32_t height, 433 uint32_t format, uint32_t flags); 434 435 struct gbm_surface * 436 gbm_surface_create_with_modifiers(struct gbm_device *gbm, 437 uint32_t width, uint32_t height, 438 uint32_t format, 439 const uint64_t *modifiers, 440 const unsigned int count); 441 442 struct gbm_surface * 443 gbm_surface_create_with_modifiers2(struct gbm_device *gbm, 444 uint32_t width, uint32_t height, 445 uint32_t format, 446 const uint64_t *modifiers, 447 const unsigned int count, 448 uint32_t flags); 449 450 struct gbm_bo * 451 gbm_surface_lock_front_buffer(struct gbm_surface *surface); 452 453 void 454 gbm_surface_release_buffer(struct gbm_surface *surface, struct gbm_bo *bo); 455 456 int 457 gbm_surface_has_free_buffers(struct gbm_surface *surface); 458 459 void 460 gbm_surface_destroy(struct gbm_surface *surface); 461 462 char * 463 gbm_format_get_name(uint32_t gbm_format, struct gbm_format_name_desc *desc); 464 465 #ifdef __cplusplus 466 } 467 #endif 468 469 #endif 470