gralloc_priv.h revision 51fd2ca95bed3fa28515ca05a4e6b38865c60961
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 36enum { 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 primary display only */ 58 GRALLOC_USAGE_PRIVATE_INTERNAL_ONLY = 0x04000000, 59 60 /* Buffer content should be displayed on an external display only */ 61 GRALLOC_USAGE_PRIVATE_EXTERNAL_ONLY = 0x08000000, 62 63 /* Only this buffer content should be displayed on external, even if 64 * other EXTERNAL_ONLY buffers are available. Used during suspend. 65 */ 66 GRALLOC_USAGE_PRIVATE_EXTERNAL_BLOCK = 0x00100000, 67 68 /* Close Caption displayed on an external display only */ 69 GRALLOC_USAGE_PRIVATE_EXTERNAL_CC = 0x00200000, 70 71 /* CAMERA heap is a carveout heap for camera, is not secured*/ 72 GRALLOC_USAGE_PRIVATE_CAMERA_HEAP = 0x00400000, 73 74 /* This flag is used for SECURE display usecase */ 75 GRALLOC_USAGE_PRIVATE_SECURE_DISPLAY = 0x00800000, 76}; 77 78enum { 79 /* Gralloc perform enums 80 */ 81 GRALLOC_MODULE_PERFORM_CREATE_HANDLE_FROM_BUFFER = 1, 82 GRALLOC_MODULE_PERFORM_GET_STRIDE, 83 GRALLOC_MODULE_PERFORM_GET_CUSTOM_STRIDE_FROM_HANDLE, 84}; 85 86#define GRALLOC_HEAP_MASK (GRALLOC_USAGE_PRIVATE_UI_CONTIG_HEAP |\ 87 GRALLOC_USAGE_PRIVATE_SYSTEM_HEAP |\ 88 GRALLOC_USAGE_PRIVATE_IOMMU_HEAP |\ 89 GRALLOC_USAGE_PRIVATE_MM_HEAP |\ 90 GRALLOC_USAGE_PRIVATE_ADSP_HEAP) 91 92#define INTERLACE_MASK 0x80 93#define S3D_FORMAT_MASK 0xFF000 94/*****************************************************************************/ 95enum { 96 /* OEM specific HAL formats */ 97 HAL_PIXEL_FORMAT_NV12_ENCODEABLE = 0x102, 98 HAL_PIXEL_FORMAT_YCbCr_420_SP_VENUS = 0x7FA30C04, 99 HAL_PIXEL_FORMAT_YCbCr_420_SP_TILED = 0x7FA30C03, 100 HAL_PIXEL_FORMAT_YCbCr_420_SP = 0x109, 101 HAL_PIXEL_FORMAT_YCrCb_420_SP_ADRENO = 0x7FA30C01, 102 HAL_PIXEL_FORMAT_YCrCb_422_SP = 0x10B, 103 HAL_PIXEL_FORMAT_R_8 = 0x10D, 104 HAL_PIXEL_FORMAT_RG_88 = 0x10E, 105 HAL_PIXEL_FORMAT_YCbCr_444_SP = 0x10F, 106 HAL_PIXEL_FORMAT_YCrCb_444_SP = 0x110, 107 HAL_PIXEL_FORMAT_YCrCb_422_I = 0x111, 108 HAL_PIXEL_FORMAT_BGRX_8888 = 0x112, 109 HAL_PIXEL_FORMAT_NV21_ZSL = 0x113, 110 HAL_PIXEL_FORMAT_INTERLACE = 0x180, 111 112}; 113 114/* possible formats for 3D content*/ 115enum { 116 HAL_NO_3D = 0x0000, 117 HAL_3D_IN_SIDE_BY_SIDE_L_R = 0x10000, 118 HAL_3D_IN_TOP_BOTTOM = 0x20000, 119 HAL_3D_IN_INTERLEAVE = 0x40000, 120 HAL_3D_IN_SIDE_BY_SIDE_R_L = 0x80000, 121 HAL_3D_OUT_SIDE_BY_SIDE = 0x1000, 122 HAL_3D_OUT_TOP_BOTTOM = 0x2000, 123 HAL_3D_OUT_INTERLEAVE = 0x4000, 124 HAL_3D_OUT_MONOSCOPIC = 0x8000 125}; 126 127enum { 128 BUFFER_TYPE_UI = 0, 129 BUFFER_TYPE_VIDEO 130}; 131 132/*****************************************************************************/ 133 134#ifdef __cplusplus 135struct private_handle_t : public native_handle { 136#else 137 struct private_handle_t { 138 native_handle_t nativeHandle; 139#endif 140 enum { 141 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 142 PRIV_FLAGS_USES_PMEM = 0x00000002, 143 PRIV_FLAGS_USES_PMEM_ADSP = 0x00000004, 144 PRIV_FLAGS_USES_ION = 0x00000008, 145 PRIV_FLAGS_USES_ASHMEM = 0x00000010, 146 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 147 PRIV_FLAGS_DO_NOT_FLUSH = 0x00000040, 148 PRIV_FLAGS_SW_LOCK = 0x00000080, 149 PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100, 150 // Set by HWC when storing the handle 151 PRIV_FLAGS_HWC_LOCK = 0x00000200, 152 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 153 // For explicit synchronization 154 PRIV_FLAGS_UNSYNCHRONIZED = 0x00000800, 155 // Not mapped in userspace 156 PRIV_FLAGS_NOT_MAPPED = 0x00001000, 157 // Display on external only 158 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 159 // Display only this buffer on external 160 PRIV_FLAGS_EXTERNAL_BLOCK = 0x00004000, 161 // Display this buffer on external as close caption 162 PRIV_FLAGS_EXTERNAL_CC = 0x00008000, 163 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 164 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 165 PRIV_FLAGS_CAMERA_READ = 0x00040000, 166 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 167 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 168 PRIV_FLAGS_ITU_R_601 = 0x00200000, 169 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, 170 PRIV_FLAGS_ITU_R_709 = 0x00800000, 171 PRIV_FLAGS_SECURE_DISPLAY = 0x01000000, 172 }; 173 174 // file-descriptors 175 int fd; 176 int fd_metadata; // fd for the meta-data 177 // ints 178 int magic; 179 int flags; 180 int size; 181 int offset; 182 int bufferType; 183 int base; 184 int offset_metadata; 185 // The gpu address mapped into the mmu. 186 int gpuaddr; 187 int format; 188 int width; 189 int height; 190 int base_metadata; 191 192#ifdef __cplusplus 193 static const int sNumInts = 12; 194 static const int sNumFds = 2; 195 static const int sMagic = 'gmsm'; 196 197 private_handle_t(int fd, int size, int flags, int bufferType, 198 int format,int width, int height, int eFd = -1, 199 int eOffset = 0, int eBase = 0) : 200 fd(fd), fd_metadata(eFd), magic(sMagic), 201 flags(flags), size(size), offset(0), bufferType(bufferType), 202 base(0), offset_metadata(eOffset), gpuaddr(0), 203 format(format), width(width), height(height), 204 base_metadata(eBase) 205 { 206 version = sizeof(native_handle); 207 numInts = sNumInts; 208 numFds = sNumFds; 209 } 210 ~private_handle_t() { 211 magic = 0; 212 } 213 214 bool usesPhysicallyContiguousMemory() { 215 return (flags & PRIV_FLAGS_USES_PMEM) != 0; 216 } 217 218 static int validate(const native_handle* h) { 219 const private_handle_t* hnd = (const private_handle_t*)h; 220 if (!h || h->version != sizeof(native_handle) || 221 h->numInts != sNumInts || h->numFds != sNumFds || 222 hnd->magic != sMagic) 223 { 224 ALOGD("Invalid gralloc handle (at %p): " 225 "ver(%d/%d) ints(%d/%d) fds(%d/%d) magic(%c%c%c%c/%c%c%c%c)", 226 h, 227 h ? h->version : -1, sizeof(native_handle), 228 h ? h->numInts : -1, sNumInts, 229 h ? h->numFds : -1, sNumFds, 230 hnd ? (((hnd->magic >> 24) & 0xFF)? 231 ((hnd->magic >> 24) & 0xFF) : '-') : '?', 232 hnd ? (((hnd->magic >> 16) & 0xFF)? 233 ((hnd->magic >> 16) & 0xFF) : '-') : '?', 234 hnd ? (((hnd->magic >> 8) & 0xFF)? 235 ((hnd->magic >> 8) & 0xFF) : '-') : '?', 236 hnd ? (((hnd->magic >> 0) & 0xFF)? 237 ((hnd->magic >> 0) & 0xFF) : '-') : '?', 238 (sMagic >> 24) & 0xFF, 239 (sMagic >> 16) & 0xFF, 240 (sMagic >> 8) & 0xFF, 241 (sMagic >> 0) & 0xFF); 242 return -EINVAL; 243 } 244 return 0; 245 } 246 247 static private_handle_t* dynamicCast(const native_handle* in) { 248 if (validate(in) == 0) { 249 return (private_handle_t*) in; 250 } 251 return NULL; 252 } 253#endif 254 }; 255 256#endif /* GRALLOC_PRIV_H_ */ 257