1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17 #define LOG_TAG "GraphicBufferMapper"
18 #define ATRACE_TAG ATRACE_TAG_GRAPHICS
19 //#define LOG_NDEBUG 0
20
21 #include <ui/GraphicBufferMapper.h>
22
23 #include <grallocusage/GrallocUsageConversion.h>
24
25 // We would eliminate the non-conforming zero-length array, but we can't since
26 // this is effectively included from the Linux kernel
27 #pragma clang diagnostic push
28 #pragma clang diagnostic ignored "-Wzero-length-array"
29 #include <sync/sync.h>
30 #pragma clang diagnostic pop
31
32 #include <utils/Log.h>
33 #include <utils/Trace.h>
34
35 #include <ui/Gralloc2.h>
36 #include <ui/GraphicBuffer.h>
37
38 #include <system/graphics.h>
39
40 namespace android {
41 // ---------------------------------------------------------------------------
42
ANDROID_SINGLETON_STATIC_INSTANCE(GraphicBufferMapper)43 ANDROID_SINGLETON_STATIC_INSTANCE( GraphicBufferMapper )
44
45 void GraphicBufferMapper::preloadHal() {
46 Gralloc2::Mapper::preload();
47 }
48
GraphicBufferMapper()49 GraphicBufferMapper::GraphicBufferMapper()
50 : mMapper(std::make_unique<const Gralloc2::Mapper>())
51 {
52 }
53
importBuffer(buffer_handle_t rawHandle,buffer_handle_t * outHandle)54 status_t GraphicBufferMapper::importBuffer(buffer_handle_t rawHandle,
55 buffer_handle_t* outHandle)
56 {
57 ATRACE_CALL();
58
59 Gralloc2::Error error = mMapper->importBuffer(
60 hardware::hidl_handle(rawHandle), outHandle);
61
62 ALOGW_IF(error != Gralloc2::Error::NONE, "importBuffer(%p) failed: %d",
63 rawHandle, error);
64
65 return static_cast<status_t>(error);
66 }
67
freeBuffer(buffer_handle_t handle)68 status_t GraphicBufferMapper::freeBuffer(buffer_handle_t handle)
69 {
70 ATRACE_CALL();
71
72 mMapper->freeBuffer(handle);
73
74 return NO_ERROR;
75 }
76
asGralloc2Rect(const Rect & rect)77 static inline Gralloc2::IMapper::Rect asGralloc2Rect(const Rect& rect) {
78 Gralloc2::IMapper::Rect outRect{};
79 outRect.left = rect.left;
80 outRect.top = rect.top;
81 outRect.width = rect.width();
82 outRect.height = rect.height();
83 return outRect;
84 }
85
lock(buffer_handle_t handle,uint32_t usage,const Rect & bounds,void ** vaddr)86 status_t GraphicBufferMapper::lock(buffer_handle_t handle, uint32_t usage,
87 const Rect& bounds, void** vaddr)
88 {
89 return lockAsync(handle, usage, bounds, vaddr, -1);
90 }
91
lockYCbCr(buffer_handle_t handle,uint32_t usage,const Rect & bounds,android_ycbcr * ycbcr)92 status_t GraphicBufferMapper::lockYCbCr(buffer_handle_t handle, uint32_t usage,
93 const Rect& bounds, android_ycbcr *ycbcr)
94 {
95 return lockAsyncYCbCr(handle, usage, bounds, ycbcr, -1);
96 }
97
unlock(buffer_handle_t handle)98 status_t GraphicBufferMapper::unlock(buffer_handle_t handle)
99 {
100 int32_t fenceFd = -1;
101 status_t error = unlockAsync(handle, &fenceFd);
102 if (error == NO_ERROR) {
103 sync_wait(fenceFd, -1);
104 close(fenceFd);
105 }
106 return error;
107 }
108
lockAsync(buffer_handle_t handle,uint32_t usage,const Rect & bounds,void ** vaddr,int fenceFd)109 status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle,
110 uint32_t usage, const Rect& bounds, void** vaddr, int fenceFd)
111 {
112 return lockAsync(handle, usage, usage, bounds, vaddr, fenceFd);
113 }
114
lockAsync(buffer_handle_t handle,uint64_t producerUsage,uint64_t consumerUsage,const Rect & bounds,void ** vaddr,int fenceFd)115 status_t GraphicBufferMapper::lockAsync(buffer_handle_t handle,
116 uint64_t producerUsage, uint64_t consumerUsage, const Rect& bounds,
117 void** vaddr, int fenceFd)
118 {
119 ATRACE_CALL();
120
121 const uint64_t usage = static_cast<uint64_t>(
122 android_convertGralloc1To0Usage(producerUsage, consumerUsage));
123 Gralloc2::Error error = mMapper->lock(handle, usage,
124 asGralloc2Rect(bounds), fenceFd, vaddr);
125
126 ALOGW_IF(error != Gralloc2::Error::NONE, "lock(%p, ...) failed: %d",
127 handle, error);
128
129 return static_cast<status_t>(error);
130 }
131
isValidYCbCrPlane(const android_flex_plane_t & plane)132 static inline bool isValidYCbCrPlane(const android_flex_plane_t& plane) {
133 if (plane.bits_per_component != 8) {
134 ALOGV("Invalid number of bits per component: %d",
135 plane.bits_per_component);
136 return false;
137 }
138 if (plane.bits_used != 8) {
139 ALOGV("Invalid number of bits used: %d", plane.bits_used);
140 return false;
141 }
142
143 bool hasValidIncrement = plane.h_increment == 1 ||
144 (plane.component != FLEX_COMPONENT_Y && plane.h_increment == 2);
145 hasValidIncrement = hasValidIncrement && plane.v_increment > 0;
146 if (!hasValidIncrement) {
147 ALOGV("Invalid increment: h %d v %d", plane.h_increment,
148 plane.v_increment);
149 return false;
150 }
151
152 return true;
153 }
154
lockAsyncYCbCr(buffer_handle_t handle,uint32_t usage,const Rect & bounds,android_ycbcr * ycbcr,int fenceFd)155 status_t GraphicBufferMapper::lockAsyncYCbCr(buffer_handle_t handle,
156 uint32_t usage, const Rect& bounds, android_ycbcr *ycbcr, int fenceFd)
157 {
158 ATRACE_CALL();
159
160 Gralloc2::YCbCrLayout layout;
161 Gralloc2::Error error = mMapper->lock(handle, usage,
162 asGralloc2Rect(bounds), fenceFd, &layout);
163 if (error == Gralloc2::Error::NONE) {
164 ycbcr->y = layout.y;
165 ycbcr->cb = layout.cb;
166 ycbcr->cr = layout.cr;
167 ycbcr->ystride = static_cast<size_t>(layout.yStride);
168 ycbcr->cstride = static_cast<size_t>(layout.cStride);
169 ycbcr->chroma_step = static_cast<size_t>(layout.chromaStep);
170 }
171
172 return static_cast<status_t>(error);
173 }
174
unlockAsync(buffer_handle_t handle,int * fenceFd)175 status_t GraphicBufferMapper::unlockAsync(buffer_handle_t handle, int *fenceFd)
176 {
177 ATRACE_CALL();
178
179 *fenceFd = mMapper->unlock(handle);
180
181 return NO_ERROR;
182 }
183
184 // ---------------------------------------------------------------------------
185 }; // namespace android
186