1 /* 2 * Copyright (C) 2008 The Android Open Source Project 3 * Copyright (c) 2011-2013, The Linux Foundation. All rights reserved. 4 * 5 * Licensed under the Apache License, Version 2.0 (the "License"); 6 * you may not use this file except in compliance with the License. 7 * You may obtain a copy of the License at 8 * 9 * http://www.apache.org/licenses/LICENSE-2.0 10 * 11 * Unless required by applicable law or agreed to in writing, software 12 * distributed under the License is distributed on an "AS IS" BASIS, 13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 14 * See the License for the specific language governing permissions and 15 * limitations under the License. 16 */ 17 18 #ifndef GRALLOC_PRIV_H_ 19 #define GRALLOC_PRIV_H_ 20 21 #include <stdint.h> 22 #include <limits.h> 23 #include <sys/cdefs.h> 24 #include <hardware/gralloc.h> 25 #include <pthread.h> 26 #include <errno.h> 27 #include <unistd.h> 28 29 #include <cutils/native_handle.h> 30 31 #include <cutils/log.h> 32 33 #define ROUND_UP_PAGESIZE(x) ( (((unsigned long)(x)) + PAGE_SIZE-1) & \ 34 (~(PAGE_SIZE-1)) ) 35 36 enum { 37 /* gralloc usage bits indicating the type 38 * of allocation that should be used */ 39 40 /* SYSTEM heap comes from kernel vmalloc, 41 * can never be uncached, is not secured*/ 42 GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP = GRALLOC_USAGE_PRIVATE_0, 43 /* SF heap is used for application buffers, is not secured */ 44 GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP = GRALLOC_USAGE_PRIVATE_1, 45 /* IOMMU heap comes from manually allocated pages, 46 * can be cached/uncached, is not secured */ 47 GRALLOC_USAGE_PRIVATE_IOMMU_HEAP = GRALLOC_USAGE_PRIVATE_2, 48 /* MM heap is a carveout heap for video, can be secured*/ 49 GRALLOC_USAGE_PRIVATE_MM_HEAP = GRALLOC_USAGE_PRIVATE_3, 50 /* CAMERA heap is a carveout heap for camera, is not secured*/ 51 GRALLOC_USAGE_PRIVATE_CAMERA_HEAP = 0x01000000, 52 53 /* Set this for allocating uncached memory (using O_DSYNC) 54 * cannot be used with noncontiguous heaps */ 55 GRALLOC_USAGE_PRIVATE_UNCACHED = 0x02000000, 56 57 /* Buffer content should be displayed on an external display only */ 58 GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY = 0x08000000, 59 60 /* Only this buffer content should be displayed on external, even if 61 * other EXTERNAL_ONLY buffers are available. Used during suspend. 62 */ 63 GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK = 0x00100000, 64 65 /* Close Caption displayed on an external display only */ 66 GRALLOC_USAGE_PRIVATE_EXTERNAL_CC = 0x00200000, 67 68 /* Use this flag to request content protected buffers. Please note 69 * that this flag is different from the GRALLOC_USAGE_PROTECTED flag 70 * which can be used for buffers that are not secured for DRM 71 * but still need to be protected from screen captures 72 */ 73 GRALLOC_USAGE_PRIVATE_CP_BUFFER = 0x00400000, 74 }; 75 76 enum { 77 /* Gralloc perform enums 78 */ 79 GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER = 1, 80 GRALLOC_MODULE_PERFORM_GET_STRIDE, 81 }; 82 83 #define GRALLOC_HEAP_MASK (GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP |\ 84 GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |\ 85 GRALLOC_USAGE_PRIVATE_IOMMU_HEAP |\ 86 GRALLOC_USAGE_PRIVATE_MM_HEAP |\ 87 GRALLOC_USAGE_PRIVATE_CAMERA_HEAP) 88 89 #define INTERLACE_MASK 0x80 90 #define S3D_FORMAT_MASK 0xFF000 91 /*****************************************************************************/ 92 enum { 93 /* OEM specific HAL formats */ 94 HAL_PIXEL_FORMAT_NV12_ENCODEABLE = 0x102, 95 HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04, 96 HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03, 97 HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109, 98 HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x7FA30C01, 99 HAL_PIXEL_FORMAT_YCrCb_422_SP = 0x10B, 100 HAL_PIXEL_FORMAT_R_8 = 0x10D, 101 HAL_PIXEL_FORMAT_RG_88 = 0x10E, 102 HAL_PIXEL_FORMAT_YCbCr_444_SP = 0x10F, 103 HAL_PIXEL_FORMAT_YCrCb_444_SP = 0x110, 104 HAL_PIXEL_FORMAT_INTERLACE = 0x180, 105 106 }; 107 108 /* possible formats for 3D content*/ 109 enum { 110 HAL_NO_3D = 0x0000, 111 HAL_3D_IN_SIDE_BY_SIDE_L_R = 0x10000, 112 HAL_3D_IN_TOP_BOTTOM = 0x20000, 113 HAL_3D_IN_INTERLEAVE = 0x40000, 114 HAL_3D_IN_SIDE_BY_SIDE_R_L = 0x80000, 115 HAL_3D_OUT_SIDE_BY_SIDE = 0x1000, 116 HAL_3D_OUT_TOP_BOTTOM = 0x2000, 117 HAL_3D_OUT_INTERLEAVE = 0x4000, 118 HAL_3D_OUT_MONOSCOPIC = 0x8000 119 }; 120 121 enum { 122 BUFFER_TYPE_UI = 0, 123 BUFFER_TYPE_VIDEO 124 }; 125 126 /*****************************************************************************/ 127 128 #ifdef __cplusplus 129 struct private_handle_t : public native_handle { 130 #else 131 struct private_handle_t { 132 native_handle_t nativeHandle; 133 #endif 134 enum { 135 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 136 PRIV_FLAGS_USES_PMEM = 0x00000002, 137 PRIV_FLAGS_USES_PMEM_ADSP = 0x00000004, 138 PRIV_FLAGS_USES_ION = 0x00000008, 139 PRIV_FLAGS_USES_ASHMEM = 0x00000010, 140 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 141 PRIV_FLAGS_DO_NOT_FLUSH = 0x00000040, 142 PRIV_FLAGS_SW_LOCK = 0x00000080, 143 PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100, 144 // Set by HWC when storing the handle 145 PRIV_FLAGS_HWC_LOCK = 0x00000200, 146 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 147 // For explicit synchronization 148 PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800, 149 // Not mapped in userspace 150 PRIV_FLAGS_NOT_MAPPED = 0x00001000, 151 // Display on external only 152 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 153 // Display only this buffer on external 154 PRIV_FLAGS_EXTERNAL_BLOCK = 0x00004000, 155 // Display this buffer on external as close caption 156 PRIV_FLAGS_EXTERNAL_CC = 0x00008000, 157 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 158 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 159 PRIV_FLAGS_CAMERA_READ = 0x00040000, 160 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 161 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 162 PRIV_FLAGS_ITU_R_601 = 0x00200000, 163 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, 164 PRIV_FLAGS_ITU_R_709 = 0x00800000, 165 }; 166 167 // file-descriptors 168 int fd; 169 int fd_metadata; // fd for the meta-data 170 // ints 171 int magic; 172 int flags; 173 int size; 174 int offset; 175 int bufferType; 176 int base; 177 int offset_metadata; 178 // The gpu address mapped into the mmu. 179 int gpuaddr; 180 int format; 181 int width; 182 int height; 183 int base_metadata; 184 185 #ifdef __cplusplus 186 static const int sNumInts = 12; 187 static const int sNumFds = 2; 188 static const int sMagic = 'gmsm'; 189 190 private_handle_t(int fd, int size, int flags, int bufferType, 191 int format,int width, int height, int eFd = -1, 192 int eOffset = 0, int eBase = 0) : fdprivate_handle_t193 fd(fd), fd_metadata(eFd), magic(sMagic), 194 flags(flags), size(size), offset(0), bufferType(bufferType), 195 base(0), offset_metadata(eOffset), gpuaddr(0), 196 format(format), width(width), height(height), 197 base_metadata(eBase) 198 { 199 version = sizeof(native_handle); 200 numInts = sNumInts; 201 numFds = sNumFds; 202 } ~private_handle_tprivate_handle_t203 ~private_handle_t() { 204 magic = 0; 205 } 206 usesPhysicallyContiguousMemoryprivate_handle_t207 bool usesPhysicallyContiguousMemory() { 208 return (flags & PRIV_FLAGS_USES_PMEM) != 0; 209 } 210 validateprivate_handle_t211 static int validate(const native_handle* h) { 212 const private_handle_t* hnd = (const private_handle_t*)h; 213 if (!h || h->version != sizeof(native_handle) || 214 h->numInts != sNumInts || h->numFds != sNumFds || 215 hnd->magic != sMagic) 216 { 217 ALOGD("Invalid gralloc handle (at %p): " 218 "ver(%d/%d) ints(%d/%d) fds(%d/%d) magic(%c%c%c%c/%c%c%c%c)", 219 h, 220 h ? h->version : -1, sizeof(native_handle), 221 h ? h->numInts : -1, sNumInts, 222 h ? h->numFds : -1, sNumFds, 223 hnd ? (((hnd->magic >> 24) & 0xFF)? 224 ((hnd->magic >> 24) & 0xFF) : '-') : '?', 225 hnd ? (((hnd->magic >> 16) & 0xFF)? 226 ((hnd->magic >> 16) & 0xFF) : '-') : '?', 227 hnd ? (((hnd->magic >> 8) & 0xFF)? 228 ((hnd->magic >> 8) & 0xFF) : '-') : '?', 229 hnd ? (((hnd->magic >> 0) & 0xFF)? 230 ((hnd->magic >> 0) & 0xFF) : '-') : '?', 231 (sMagic >> 24) & 0xFF, 232 (sMagic >> 16) & 0xFF, 233 (sMagic >> 8) & 0xFF, 234 (sMagic >> 0) & 0xFF); 235 return -EINVAL; 236 } 237 return 0; 238 } 239 dynamicCastprivate_handle_t240 static private_handle_t* dynamicCast(const native_handle* in) { 241 if (validate(in) == 0) { 242 return (private_handle_t*) in; 243 } 244 return NULL; 245 } 246 #endif 247 }; 248 249 #endif /* GRALLOC_PRIV_H_ */ 250