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 /* ADSP heap is a carveout heap, is not secured*/ 51 GRALLOC_USAGE_PRIVATE_ADSP_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 /* CAMERA heap is a carveout heap for camera, is not secured*/ 69 GRALLOC_USAGE_PRIVATE_CAMERA_HEAP = 0x00400000, 70 }; 71 72 enum { 73 /* Gralloc perform enums 74 */ 75 GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER = 1, 76 GRALLOC_MODULE_PERFORM_GET_STRIDE, 77 GRALLOC_MODULE_PERFORM_GET_CUSTOM_STRIDE_FROM_HANDLE, 78 }; 79 80 #define GRALLOC_HEAP_MASK (GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP |\ 81 GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |\ 82 GRALLOC_USAGE_PRIVATE_IOMMU_HEAP |\ 83 GRALLOC_USAGE_PRIVATE_MM_HEAP |\ 84 GRALLOC_USAGE_PRIVATE_ADSP_HEAP) 85 86 #define INTERLACE_MASK 0x80 87 #define S3D_FORMAT_MASK 0xFF000 88 /*****************************************************************************/ 89 enum { 90 /* OEM specific HAL formats */ 91 HAL_PIXEL_FORMAT_NV12_ENCODEABLE = 0x102, 92 HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04, 93 HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03, 94 HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109, 95 HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x7FA30C01, 96 HAL_PIXEL_FORMAT_YCrCb_422_SP = 0x10B, 97 HAL_PIXEL_FORMAT_R_8 = 0x10D, 98 HAL_PIXEL_FORMAT_RG_88 = 0x10E, 99 HAL_PIXEL_FORMAT_YCbCr_444_SP = 0x10F, 100 HAL_PIXEL_FORMAT_YCrCb_444_SP = 0x110, 101 HAL_PIXEL_FORMAT_NV21_ZSL = 0x111, 102 HAL_PIXEL_FORMAT_INTERLACE = 0x180, 103 104 }; 105 106 /* possible formats for 3D content*/ 107 enum { 108 HAL_NO_3D = 0x0000, 109 HAL_3D_IN_SIDE_BY_SIDE_L_R = 0x10000, 110 HAL_3D_IN_TOP_BOTTOM = 0x20000, 111 HAL_3D_IN_INTERLEAVE = 0x40000, 112 HAL_3D_IN_SIDE_BY_SIDE_R_L = 0x80000, 113 HAL_3D_OUT_SIDE_BY_SIDE = 0x1000, 114 HAL_3D_OUT_TOP_BOTTOM = 0x2000, 115 HAL_3D_OUT_INTERLEAVE = 0x4000, 116 HAL_3D_OUT_MONOSCOPIC = 0x8000 117 }; 118 119 enum { 120 BUFFER_TYPE_UI = 0, 121 BUFFER_TYPE_VIDEO 122 }; 123 124 /*****************************************************************************/ 125 126 #ifdef __cplusplus 127 struct private_handle_t : public native_handle { 128 #else 129 struct private_handle_t { 130 native_handle_t nativeHandle; 131 #endif 132 enum { 133 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 134 PRIV_FLAGS_USES_PMEM = 0x00000002, 135 PRIV_FLAGS_USES_PMEM_ADSP = 0x00000004, 136 PRIV_FLAGS_USES_ION = 0x00000008, 137 PRIV_FLAGS_USES_ASHMEM = 0x00000010, 138 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 139 PRIV_FLAGS_DO_NOT_FLUSH = 0x00000040, 140 PRIV_FLAGS_SW_LOCK = 0x00000080, 141 PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100, 142 // Set by HWC when storing the handle 143 PRIV_FLAGS_HWC_LOCK = 0x00000200, 144 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 145 // For explicit synchronization 146 PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800, 147 // Not mapped in userspace 148 PRIV_FLAGS_NOT_MAPPED = 0x00001000, 149 // Display on external only 150 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 151 // Display only this buffer on external 152 PRIV_FLAGS_EXTERNAL_BLOCK = 0x00004000, 153 // Display this buffer on external as close caption 154 PRIV_FLAGS_EXTERNAL_CC = 0x00008000, 155 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 156 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 157 PRIV_FLAGS_CAMERA_READ = 0x00040000, 158 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 159 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 160 PRIV_FLAGS_ITU_R_601 = 0x00200000, 161 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, 162 PRIV_FLAGS_ITU_R_709 = 0x00800000, 163 PRIV_FLAGS_L3_SECURE_BUFFER = 0x01000000, 164 }; 165 166 // file-descriptors 167 int fd; 168 int fd_metadata; // fd for the meta-data 169 // ints 170 int magic; 171 int flags; 172 int size; 173 int offset; 174 int bufferType; 175 int base; 176 int offset_metadata; 177 // The gpu address mapped into the mmu. 178 int gpuaddr; 179 int format; 180 int width; 181 int height; 182 int base_metadata; 183 184 #ifdef __cplusplus 185 static const int sNumInts = 12; 186 static const int sNumFds = 2; 187 static const int sMagic = 'gmsm'; 188 189 private_handle_t(int fd, int size, int flags, int bufferType, 190 int format,int width, int height, int eFd = -1, 191 int eOffset = 0, int eBase = 0) : 192 fd(fd), fd_metadata(eFd), magic(sMagic), 193 flags(flags), size(size), offset(0), bufferType(bufferType), 194 base(0), offset_metadata(eOffset), gpuaddr(0), 195 format(format), width(width), height(height), 196 base_metadata(eBase) 197 { 198 version = sizeof(native_handle); 199 numInts = sNumInts; 200 numFds = sNumFds; 201 } 202 ~private_handle_t() { 203 magic = 0; 204 } 205 206 bool usesPhysicallyContiguousMemory() { 207 return (flags & PRIV_FLAGS_USES_PMEM) != 0; 208 } 209 210 static int validate(const native_handle* h) { 211 const private_handle_t* hnd = (const private_handle_t*)h; 212 if (!h || h->version != sizeof(native_handle) || 213 h->numInts != sNumInts || h->numFds != sNumFds || 214 hnd->magic != sMagic) 215 { 216 ALOGD("Invalid gralloc handle (at %p): " 217 "ver(%d/%d) ints(%d/%d) fds(%d/%d) magic(%c%c%c%c/%c%c%c%c)", 218 h, 219 h ? h->version : -1, sizeof(native_handle), 220 h ? h->numInts : -1, sNumInts, 221 h ? h->numFds : -1, sNumFds, 222 hnd ? (((hnd->magic >> 24) & 0xFF)? 223 ((hnd->magic >> 24) & 0xFF) : '-') : '?', 224 hnd ? (((hnd->magic >> 16) & 0xFF)? 225 ((hnd->magic >> 16) & 0xFF) : '-') : '?', 226 hnd ? (((hnd->magic >> 8) & 0xFF)? 227 ((hnd->magic >> 8) & 0xFF) : '-') : '?', 228 hnd ? (((hnd->magic >> 0) & 0xFF)? 229 ((hnd->magic >> 0) & 0xFF) : '-') : '?', 230 (sMagic >> 24) & 0xFF, 231 (sMagic >> 16) & 0xFF, 232 (sMagic >> 8) & 0xFF, 233 (sMagic >> 0) & 0xFF); 234 return -EINVAL; 235 } 236 return 0; 237 } 238 239 static private_handle_t* dynamicCast(const native_handle* in) { 240 if (validate(in) == 0) { 241 return (private_handle_t*) in; 242 } 243 return NULL; 244 } 245 #endif 246 }; 247 248 #endif /* GRALLOC_PRIV_H_ */ 249
