1 /* 2 * Copyright (C) 2010-2011 Chia-I Wu <olvaffe (at) gmail.com> 3 * Copyright (C) 2010-2011 LunarG Inc. 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 shall be included 13 * in all copies or substantial portions of the Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 21 * DEALINGS IN THE SOFTWARE. 22 */ 23 24 #ifndef _GRALLOC_DRM_HANDLE_H_ 25 #define _GRALLOC_DRM_HANDLE_H_ 26 27 #include <cutils/native_handle.h> 28 #include <system/graphics.h> 29 30 #ifdef __cplusplus 31 extern "C" { 32 #endif 33 34 struct gralloc_drm_bo_t; 35 36 struct gralloc_drm_handle_t { 37 native_handle_t base; 38 39 /* file descriptors */ 40 int prime_fd; 41 42 /* integers */ 43 int magic; 44 45 int width; 46 int height; 47 int format; 48 int usage; 49 50 int name; /* the name of the bo */ 51 int stride; /* the stride in bytes */ 52 53 struct gralloc_drm_bo_t *data; /* pointer to struct gralloc_drm_bo_t */ 54 55 // FIXME: the attributes below should be out-of-line 56 uint64_t unknown __attribute__((aligned(8))); 57 int data_owner; /* owner of data (for validation) */ 58 }; 59 #define GRALLOC_DRM_HANDLE_MAGIC 0x12345678 60 #define GRALLOC_DRM_HANDLE_NUM_FDS 1 61 #define GRALLOC_DRM_HANDLE_NUM_INTS ( \ 62 ((sizeof(struct gralloc_drm_handle_t) - sizeof(native_handle_t))/sizeof(int)) \ 63 - GRALLOC_DRM_HANDLE_NUM_FDS) 64 65 static inline struct gralloc_drm_handle_t *gralloc_drm_handle(buffer_handle_t _handle) 66 { 67 struct gralloc_drm_handle_t *handle = 68 (struct gralloc_drm_handle_t *) _handle; 69 70 if (handle && (handle->base.version != sizeof(handle->base) || 71 handle->base.numInts != GRALLOC_DRM_HANDLE_NUM_INTS || 72 handle->base.numFds != GRALLOC_DRM_HANDLE_NUM_FDS || 73 handle->magic != GRALLOC_DRM_HANDLE_MAGIC)) { 74 ALOGE("invalid handle: version=%d, numInts=%d, numFds=%d, magic=%x", 75 handle->base.version, handle->base.numInts, 76 handle->base.numFds, handle->magic); 77 handle = NULL; 78 } 79 80 return handle; 81 } 82 83 #ifdef __cplusplus 84 } 85 #endif 86 #endif /* _GRALLOC_DRM_HANDLE_H_ */ 87
