1 /* 2 * Copyright (c) 2011-2018, The Linux Foundation. All rights reserved. 3 * Not a Contribution 4 * 5 * Copyright (C) 2008 The Android Open Source Project 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); 8 * you may not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, 15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 */ 19 20 #ifndef __GR_PRIV_HANDLE_H__ 21 #define __GR_PRIV_HANDLE_H__ 22 23 #include <errno.h> 24 #include <stdint.h> 25 26 #include <log/log.h> 27 28 #include <hardware/gralloc1.h> 29 #include <hardware/gralloc.h> 30 #include <cinttypes> 31 32 #define GRALLOC1_FUNCTION_PERFORM 0x00001000 33 34 #define DBG_HANDLE false 35 36 typedef gralloc1_error_t (*GRALLOC1_PFN_PERFORM)(gralloc1_device_t *device, int operation, ...); 37 38 #define PRIV_HANDLE_CONST(exp) static_cast<const private_handle_t *>(exp) 39 40 struct private_handle_t : public native_handle_t { 41 enum { 42 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 43 PRIV_FLAGS_USES_ION = 0x00000008, 44 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 45 PRIV_FLAGS_INTERNAL_ONLY = 0x00000040, 46 PRIV_FLAGS_NON_CPU_WRITER = 0x00000080, 47 PRIV_FLAGS_CACHED = 0x00000200, 48 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 49 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 50 PRIV_FLAGS_PROTECTED_BUFFER = 0x00004000, 51 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 52 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 53 PRIV_FLAGS_CAMERA_READ = 0x00040000, 54 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 55 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 56 PRIV_FLAGS_ITU_R_601 = 0x00200000, // Unused from display 57 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, // Unused from display 58 PRIV_FLAGS_ITU_R_709 = 0x00800000, // Unused from display 59 PRIV_FLAGS_SECURE_DISPLAY = 0x01000000, 60 PRIV_FLAGS_TILE_RENDERED = 0x02000000, 61 PRIV_FLAGS_CPU_RENDERED = 0x04000000, 62 PRIV_FLAGS_UBWC_ALIGNED = 0x08000000, 63 PRIV_FLAGS_DISP_CONSUMER = 0x10000000, 64 PRIV_FLAGS_CLIENT_ALLOCATED = 0x20000000, // Ion buffer allocated outside of gralloc 65 }; 66 67 // file-descriptors dup'd over IPC 68 int fd; 69 int fd_metadata; 70 71 // values sent over IPC 72 int magic; 73 int flags; 74 int width; // holds width of the actual buffer allocated 75 int height; // holds height of the actual buffer allocated 76 int unaligned_width; // holds width client asked to allocate 77 int unaligned_height; // holds height client asked to allocate 78 int format; 79 int buffer_type; 80 unsigned int size; 81 unsigned int offset; 82 unsigned int offset_metadata; 83 uint64_t base __attribute__((aligned(8))); 84 uint64_t base_metadata __attribute__((aligned(8))); 85 uint64_t gpuaddr __attribute__((aligned(8))); 86 uint64_t id __attribute__((aligned(8))); 87 gralloc1_producer_usage_t producer_usage __attribute__((aligned(8))); 88 gralloc1_consumer_usage_t consumer_usage __attribute__((aligned(8))); 89 unsigned int layer_count; 90 91 static const int kNumFds = 2; 92 static const int kMagic = 'gmsm'; 93 NumIntsprivate_handle_t94 static inline int NumInts() { 95 return ((sizeof(private_handle_t) - sizeof(native_handle_t)) / sizeof(int)) 96 - kNumFds; 97 } 98 99 private_handle_t(int fd, 100 int meta_fd, 101 int flags, 102 int width, 103 int height, 104 int uw, 105 int uh, 106 int format, 107 int buf_type, 108 unsigned int size, 109 gralloc1_producer_usage_t prod_usage = GRALLOC1_PRODUCER_USAGE_NONE, 110 gralloc1_consumer_usage_t cons_usage = GRALLOC1_CONSUMER_USAGE_NONE) fdprivate_handle_t111 : fd(fd), 112 fd_metadata(meta_fd), 113 magic(kMagic), 114 flags(flags), 115 width(width), 116 height(height), 117 unaligned_width(uw), 118 unaligned_height(uh), 119 format(format), 120 buffer_type(buf_type), 121 size(size), 122 offset(0), 123 offset_metadata(0), 124 base(0), 125 base_metadata(0), 126 gpuaddr(0), 127 id(0), 128 producer_usage(prod_usage), 129 consumer_usage(cons_usage), 130 layer_count(1) { 131 version = static_cast<int>(sizeof(native_handle)); 132 numInts = NumInts(); 133 numFds = kNumFds; 134 } 135 136 // Legacy constructor used by some clients private_handle_tprivate_handle_t137 private_handle_t(int fd, unsigned int size, int usage, int buf_type, int format, int w, int h) 138 : private_handle_t(fd, -1, PRIV_FLAGS_CLIENT_ALLOCATED, w, h, 0, 0, format, buf_type, size, 139 static_cast<gralloc1_producer_usage_t>(usage), 140 static_cast<gralloc1_consumer_usage_t>(usage)) { 141 } 142 ~private_handle_tprivate_handle_t143 ~private_handle_t() { 144 magic = 0; 145 ALOGE_IF(DBG_HANDLE, "Deleting buffer handle %p", this); 146 } 147 clean_magic_byteprivate_handle_t148 static inline char clean_magic_byte(int b) { 149 return (b & 0xff) ? (b & 0xff) : '-'; 150 } 151 validateprivate_handle_t152 static int validate(const native_handle *h) { 153 const private_handle_t *hnd = (const private_handle_t *)h; 154 if (!h || h->version != sizeof(native_handle) || h->numInts != NumInts() || 155 h->numFds != kNumFds) { 156 ALOGE("Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) ", 157 h, h ? h->version : -1, sizeof(native_handle), h ? h->numInts : -1, NumInts(), 158 h ? h->numFds : -1, kNumFds); 159 return -EINVAL; 160 } 161 if (hnd->magic != kMagic) { 162 ALOGE("magic(%c%c%c%c/%c%c%c%c)", 163 clean_magic_byte(hnd->magic >> 24), 164 clean_magic_byte(hnd->magic >> 16), 165 clean_magic_byte(hnd->magic >> 8), 166 clean_magic_byte(hnd->magic >> 0), 167 (kMagic >> 24) & 0xFF, (kMagic >> 16) & 0xFF, (kMagic >> 8) & 0xFF, (kMagic >> 0) & 0xFF); 168 return -EINVAL; 169 } 170 171 return 0; 172 } 173 Dumpprivate_handle_t174 static void Dump(const private_handle_t *hnd) { 175 ALOGD("handle id:%" PRIu64 " wxh:%dx%d uwxuh:%dx%d size: %d fd:%d fd_meta:%d flags:0x%x " 176 "prod_usage:0x%" PRIx64" cons_usage:0x%" PRIx64 " format:0x%x layer_count: %d", 177 hnd->id, hnd->width, hnd->height, hnd->unaligned_width, hnd->unaligned_height, hnd->size, 178 hnd->fd, hnd->fd_metadata, hnd->flags, hnd->producer_usage, hnd->consumer_usage, 179 hnd->format, hnd->layer_count); 180 } 181 GetUnalignedWidthprivate_handle_t182 int GetUnalignedWidth() const { return unaligned_width; } 183 GetUnalignedHeightprivate_handle_t184 int GetUnalignedHeight() const { return unaligned_height; } 185 GetColorFormatprivate_handle_t186 int GetColorFormat() const { return format; } 187 GetLayerCountprivate_handle_t188 unsigned int GetLayerCount() const { return layer_count; } 189 GetStrideprivate_handle_t190 int GetStride() const { 191 // In handle we currently store aligned width after allocation. 192 return width; 193 } 194 GetConsumerUsageprivate_handle_t195 gralloc1_consumer_usage_t GetConsumerUsage() const { return consumer_usage; } 196 GetProducerUsageprivate_handle_t197 gralloc1_producer_usage_t GetProducerUsage() const { return producer_usage; } 198 GetBackingstoreprivate_handle_t199 uint64_t GetBackingstore() const { return id; } 200 }; 201 202 #endif // __GR_PRIV_HANDLE_H__ 203