1 /* 2 * Copyright (c) 2011-2017, 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 <cutils/log.h> 24 #include <hardware/gralloc1.h> 25 #include <hardware/gralloc.h> 26 #ifdef __cplusplus 27 #include <cinttypes> 28 #endif 29 30 #include <errno.h> 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 #ifdef __cplusplus 41 struct private_handle_t : public native_handle_t { 42 #else 43 struct private_handle_t { 44 native_handle_t nativeHandle; 45 #endif 46 enum { 47 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 48 PRIV_FLAGS_USES_ION = 0x00000008, 49 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 50 PRIV_FLAGS_INTERNAL_ONLY = 0x00000040, 51 PRIV_FLAGS_NON_CPU_WRITER = 0x00000080, 52 PRIV_FLAGS_CACHED = 0x00000200, 53 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 54 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 55 PRIV_FLAGS_PROTECTED_BUFFER = 0x00004000, 56 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 57 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 58 PRIV_FLAGS_CAMERA_READ = 0x00040000, 59 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 60 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 61 PRIV_FLAGS_ITU_R_601 = 0x00200000, // Unused from display 62 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, // Unused from display 63 PRIV_FLAGS_ITU_R_709 = 0x00800000, // Unused from display 64 PRIV_FLAGS_SECURE_DISPLAY = 0x01000000, 65 PRIV_FLAGS_TILE_RENDERED = 0x02000000, 66 PRIV_FLAGS_CPU_RENDERED = 0x04000000, 67 PRIV_FLAGS_UBWC_ALIGNED = 0x08000000, 68 PRIV_FLAGS_DISP_CONSUMER = 0x10000000, 69 PRIV_FLAGS_CLIENT_ALLOCATED = 0x20000000, // Ion buffer allocated outside of gralloc 70 }; 71 72 // file-descriptors dup'd over IPC 73 int fd; 74 int fd_metadata; 75 76 // values sent over IPC 77 int magic; 78 int flags; 79 int width; // holds width of the actual buffer allocated 80 int height; // holds height of the actual buffer allocated 81 int unaligned_width; // holds width client asked to allocate 82 int unaligned_height; // holds height client asked to allocate 83 int format; 84 int buffer_type; 85 unsigned int size; 86 unsigned int offset; 87 unsigned int offset_metadata; 88 uint64_t base __attribute__((aligned(8))); 89 uint64_t base_metadata __attribute__((aligned(8))); 90 uint64_t gpuaddr __attribute__((aligned(8))); 91 uint64_t id __attribute__((aligned(8))); 92 gralloc1_producer_usage_t producer_usage __attribute__((aligned(8))); 93 gralloc1_consumer_usage_t consumer_usage __attribute__((aligned(8))); 94 unsigned int layer_count; 95 #ifdef __cplusplus 96 static const int kNumFds = 2; 97 static const int kMagic = 'gmsm'; 98 99 static inline int NumInts() { 100 return ((sizeof(private_handle_t) - sizeof(native_handle_t)) / sizeof(int)) 101 - kNumFds; 102 } 103 104 private_handle_t(int fd, 105 int meta_fd, 106 int flags, 107 int width, 108 int height, 109 int uw, 110 int uh, 111 int format, 112 int buf_type, 113 unsigned int size, 114 gralloc1_producer_usage_t prod_usage = GRALLOC1_PRODUCER_USAGE_NONE, 115 gralloc1_consumer_usage_t cons_usage = GRALLOC1_CONSUMER_USAGE_NONE) 116 : fd(fd), 117 fd_metadata(meta_fd), 118 magic(kMagic), 119 flags(flags), 120 width(width), 121 height(height), 122 unaligned_width(uw), 123 unaligned_height(uh), 124 format(format), 125 buffer_type(buf_type), 126 size(size), 127 offset(0), 128 offset_metadata(0), 129 base(0), 130 base_metadata(0), 131 gpuaddr(0), 132 id(0), 133 producer_usage(prod_usage), 134 consumer_usage(cons_usage), 135 layer_count(1) { 136 version = static_cast<int>(sizeof(native_handle)); 137 numInts = NumInts(); 138 numFds = kNumFds; 139 } 140 141 // Legacy constructor used by some clients 142 private_handle_t(int fd, unsigned int size, int usage, int buf_type, int format, int w, int h) 143 : private_handle_t(fd, -1, PRIV_FLAGS_CLIENT_ALLOCATED, w, h, 0, 0, format, buf_type, size, 144 static_cast<gralloc1_producer_usage_t>(usage), 145 static_cast<gralloc1_consumer_usage_t>(usage)) { 146 } 147 148 ~private_handle_t() { 149 magic = 0; 150 ALOGE_IF(DBG_HANDLE, "Deleting buffer handle %p", this); 151 } 152 153 static int validate(const native_handle *h) { 154 const private_handle_t *hnd = (const private_handle_t *)h; 155 if (!h || h->version != sizeof(native_handle) || h->numInts != NumInts() || 156 h->numFds != kNumFds || hnd->magic != kMagic) { 157 ALOGE( 158 "Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) " 159 "magic(%c%c%c%c/%c%c%c%c)", 160 h, h ? h->version : -1, sizeof(native_handle), h ? h->numInts : -1, NumInts(), 161 h ? h->numFds : -1, kNumFds, 162 hnd ? (((hnd->magic >> 24) & 0xFF) ? ((hnd->magic >> 24) & 0xFF) : '-') : '?', 163 hnd ? (((hnd->magic >> 16) & 0xFF) ? ((hnd->magic >> 16) & 0xFF) : '-') : '?', 164 hnd ? (((hnd->magic >> 8) & 0xFF) ? ((hnd->magic >> 8) & 0xFF) : '-') : '?', 165 hnd ? (((hnd->magic >> 0) & 0xFF) ? ((hnd->magic >> 0) & 0xFF) : '-') : '?', 166 (kMagic >> 24) & 0xFF, (kMagic >> 16) & 0xFF, (kMagic >> 8) & 0xFF, (kMagic >> 0) & 0xFF); 167 return -EINVAL; 168 } 169 170 return 0; 171 } 172 static void Dump(const private_handle_t *hnd) { 173 ALOGD("handle id:%" PRIu64 " wxh:%dx%d uwxuh:%dx%d size: %d fd:%d fd_meta:%d flags:0x%x " 174 "prod_usage:0x%" PRIx64" cons_usage:0x%" PRIx64 " format:0x%x layer_count: %d", 175 hnd->id, hnd->width, hnd->height, hnd->unaligned_width, hnd->unaligned_height, hnd->size, 176 hnd->fd, hnd->fd_metadata, hnd->flags, hnd->producer_usage, hnd->consumer_usage, 177 hnd->format, hnd->layer_count); 178 } 179 180 int GetUnalignedWidth() const { return unaligned_width; } 181 182 int GetUnalignedHeight() const { return unaligned_height; } 183 184 int GetColorFormat() const { return format; } 185 186 unsigned int GetLayerCount() const { return layer_count; } 187 188 int GetStride() const { 189 // In handle we currently store aligned width after allocation. 190 return width; 191 } 192 193 gralloc1_consumer_usage_t GetConsumerUsage() const { return consumer_usage; } 194 195 gralloc1_producer_usage_t GetProducerUsage() const { return producer_usage; } 196 197 uint64_t GetBackingstore() const { return id; } 198 #endif 199 }; 200 201 #endif // __GR_PRIV_HANDLE_H__ 202
