1 /* 2 * Copyright (c) 2011-2016, 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 26 #define GRALLOC1_FUNCTION_PERFORM 0x00001000 27 28 #define DBG_HANDLE false 29 30 typedef gralloc1_error_t (*GRALLOC1_PFN_PERFORM)(gralloc1_device_t *device, int operation, ...); 31 32 typedef int BackStoreFd; 33 34 #define PRIV_HANDLE_CONST(exp) static_cast<const private_handle_t *>(exp) 35 36 struct private_handle_t : public native_handle_t { 37 // TODO(user): Moving PRIV_FLAGS to #defs & check for each PRIV_FLAG and remove unused. 38 enum { 39 PRIV_FLAGS_FRAMEBUFFER = 0x00000001, 40 PRIV_FLAGS_USES_ION = 0x00000008, 41 PRIV_FLAGS_USES_ASHMEM = 0x00000010, 42 PRIV_FLAGS_NEEDS_FLUSH = 0x00000020, 43 PRIV_FLAGS_INTERNAL_ONLY = 0x00000040, 44 PRIV_FLAGS_NON_CPU_WRITER = 0x00000080, 45 PRIV_FLAGS_NONCONTIGUOUS_MEM = 0x00000100, 46 PRIV_FLAGS_CACHED = 0x00000200, 47 PRIV_FLAGS_SECURE_BUFFER = 0x00000400, 48 PRIV_FLAGS_EXTERNAL_ONLY = 0x00002000, 49 PRIV_FLAGS_PROTECTED_BUFFER = 0x00004000, 50 PRIV_FLAGS_VIDEO_ENCODER = 0x00010000, 51 PRIV_FLAGS_CAMERA_WRITE = 0x00020000, 52 PRIV_FLAGS_CAMERA_READ = 0x00040000, 53 PRIV_FLAGS_HW_COMPOSER = 0x00080000, 54 PRIV_FLAGS_HW_TEXTURE = 0x00100000, 55 PRIV_FLAGS_ITU_R_601 = 0x00200000, // Unused from display 56 PRIV_FLAGS_ITU_R_601_FR = 0x00400000, // Unused from display 57 PRIV_FLAGS_ITU_R_709 = 0x00800000, // Unused from display 58 PRIV_FLAGS_SECURE_DISPLAY = 0x01000000, 59 PRIV_FLAGS_TILE_RENDERED = 0x02000000, 60 PRIV_FLAGS_CPU_RENDERED = 0x04000000, 61 PRIV_FLAGS_UBWC_ALIGNED = 0x08000000, 62 PRIV_FLAGS_DISP_CONSUMER = 0x10000000 63 }; 64 65 // file-descriptors 66 int fd; 67 int fd_metadata; 68 69 // ints 70 int magic; 71 int flags; 72 unsigned int size; 73 unsigned int offset; 74 int buffer_type; 75 uint64_t base __attribute__((aligned(8))); 76 unsigned int offset_metadata; 77 78 // The gpu address mapped into the mmu. 79 uint64_t gpuaddr __attribute__((aligned(8))); 80 81 int format; 82 int width; // holds width of the actual buffer allocated 83 int height; // holds height of the actual buffer allocated 84 85 int stride; 86 uint64_t base_metadata __attribute__((aligned(8))); 87 88 // added for gralloc1 89 int real_width; // holds width client asked to allocate 90 int real_height; // holds height client asked to allocate// holds width client asked to allocate 91 gralloc1_producer_usage_t producer_usage __attribute__((aligned(8))); 92 gralloc1_consumer_usage_t consumer_usage __attribute__((aligned(8))); 93 94 static const int kNumFds = 2; 95 static const int kMagic = 'gmsm'; 96 NumIntsprivate_handle_t97 static inline int NumInts() { 98 return ((sizeof(private_handle_t) - sizeof(native_handle_t)) / sizeof(int)) - kNumFds; 99 } 100 101 private_handle_t(int fd, unsigned int size, int flags, int buf_type, int format, int width, 102 int height, int meta_fd = -1, unsigned int meta_offset = 0, 103 uint64_t meta_base = 0, int rw = 0, int rh = 0, 104 gralloc1_producer_usage_t prod_usage = GRALLOC1_PRODUCER_USAGE_NONE, 105 gralloc1_consumer_usage_t cons_usage = GRALLOC1_CONSUMER_USAGE_NONE) fdprivate_handle_t106 : fd(fd), 107 fd_metadata(meta_fd), 108 magic(kMagic), 109 flags(flags), 110 size(size), 111 offset(0), 112 buffer_type(buf_type), 113 base(0), 114 offset_metadata(meta_offset), 115 gpuaddr(0), 116 format(format), 117 width(width), 118 height(height), 119 base_metadata(meta_base), 120 real_width(rw), 121 real_height(rh), 122 producer_usage(prod_usage), 123 consumer_usage(cons_usage) { 124 version = static_cast<int>(sizeof(native_handle)); 125 numInts = NumInts(); 126 numFds = kNumFds; 127 } 128 ~private_handle_tprivate_handle_t129 ~private_handle_t() { 130 magic = 0; 131 ALOGE_IF(DBG_HANDLE, "deleting buffer handle %p", this); 132 } 133 validateprivate_handle_t134 static int validate(const native_handle *h) { 135 const private_handle_t *hnd = (const private_handle_t *)h; 136 if (!h || h->version != sizeof(native_handle) || h->numInts != NumInts() || 137 h->numFds != kNumFds || hnd->magic != kMagic) { 138 ALOGE( 139 "Invalid gralloc handle (at %p): ver(%d/%zu) ints(%d/%d) fds(%d/%d) " 140 "magic(%c%c%c%c/%c%c%c%c)", 141 h, h ? h->version : -1, sizeof(native_handle), h ? h->numInts : -1, NumInts(), 142 h ? h->numFds : -1, kNumFds, 143 hnd ? (((hnd->magic >> 24) & 0xFF) ? ((hnd->magic >> 24) & 0xFF) : '-') : '?', 144 hnd ? (((hnd->magic >> 16) & 0xFF) ? ((hnd->magic >> 16) & 0xFF) : '-') : '?', 145 hnd ? (((hnd->magic >> 8) & 0xFF) ? ((hnd->magic >> 8) & 0xFF) : '-') : '?', 146 hnd ? (((hnd->magic >> 0) & 0xFF) ? ((hnd->magic >> 0) & 0xFF) : '-') : '?', 147 (kMagic >> 24) & 0xFF, (kMagic >> 16) & 0xFF, (kMagic >> 8) & 0xFF, (kMagic >> 0) & 0xFF); 148 return -EINVAL; 149 } 150 151 return 0; 152 } 153 GetRealWidthprivate_handle_t154 int GetRealWidth() const { return real_width; } 155 GetRealHeightprivate_handle_t156 int GetRealHeight() const { return real_height; } 157 GetColorFormatprivate_handle_t158 int GetColorFormat() const { return format; } 159 GetStrideprivate_handle_t160 int GetStride() const { 161 // In handle we are storing aligned width after allocation. 162 // Why GetWidth & GetStride?? Are we supposed to maintain unaligned values?? 163 return width; 164 } 165 GetConsumerUsageprivate_handle_t166 gralloc1_consumer_usage_t GetConsumerUsage() const { return consumer_usage; } 167 GetProducerUsageprivate_handle_t168 gralloc1_producer_usage_t GetProducerUsage() const { return producer_usage; } 169 GetBackingstoreprivate_handle_t170 BackStoreFd GetBackingstore() const { return fd; } 171 }; 172 173 #endif // __GR_PRIV_HANDLE_H__ 174