1 /*
2 * Copyright 2020 The Chromium OS Authors. All rights reserved.
3 * Use of this source code is governed by a BSD-style license that can be
4 * found in the LICENSE file.
5 */
6
7 #include "cros_gralloc/gralloc4/CrosGralloc4Allocator.h"
8
9 #include <android/hardware/graphics/mapper/4.0/IMapper.h>
10 #include <gralloctypes/Gralloc4.h>
11
12 #include "cros_gralloc/cros_gralloc_helpers.h"
13 #include "cros_gralloc/gralloc4/CrosGralloc4Metadata.h"
14 #include "cros_gralloc/gralloc4/CrosGralloc4Utils.h"
15
16 using aidl::android::hardware::graphics::common::BlendMode;
17 using aidl::android::hardware::graphics::common::Dataspace;
18 using android::hardware::hidl_handle;
19 using android::hardware::hidl_vec;
20 using android::hardware::Return;
21 using android::hardware::Void;
22 using android::hardware::graphics::common::V1_2::BufferUsage;
23 using android::hardware::graphics::common::V1_2::PixelFormat;
24 using android::hardware::graphics::mapper::V4_0::Error;
25
26 using BufferDescriptorInfo =
27 android::hardware::graphics::mapper::V4_0::IMapper::BufferDescriptorInfo;
28
init()29 Error CrosGralloc4Allocator::init() {
30 mDriver = cros_gralloc_driver::get_instance();
31 return mDriver ? Error::NONE : Error::NO_RESOURCES;
32 }
33
initializeMetadata(cros_gralloc_handle_t crosHandle,const struct cros_gralloc_buffer_descriptor & crosDescriptor)34 Error CrosGralloc4Allocator::initializeMetadata(
35 cros_gralloc_handle_t crosHandle,
36 const struct cros_gralloc_buffer_descriptor& crosDescriptor) {
37 if (!mDriver) {
38 drv_log("Failed to initializeMetadata. Driver is uninitialized.\n");
39 return Error::NO_RESOURCES;
40 }
41
42 if (!crosHandle) {
43 drv_log("Failed to initializeMetadata. Invalid handle.\n");
44 return Error::BAD_BUFFER;
45 }
46
47 void* addr;
48 uint64_t size;
49 int ret = mDriver->get_reserved_region(crosHandle, &addr, &size);
50 if (ret) {
51 drv_log("Failed to getReservedRegion.\n");
52 return Error::NO_RESOURCES;
53 }
54
55 CrosGralloc4Metadata* crosMetadata = reinterpret_cast<CrosGralloc4Metadata*>(addr);
56
57 snprintf(crosMetadata->name, CROS_GRALLOC4_METADATA_MAX_NAME_SIZE, "%s",
58 crosDescriptor.name.c_str());
59 crosMetadata->dataspace = Dataspace::UNKNOWN;
60 crosMetadata->blendMode = BlendMode::INVALID;
61
62 return Error::NONE;
63 }
64
allocate(const BufferDescriptorInfo & descriptor,uint32_t * outStride,hidl_handle * outHandle)65 Error CrosGralloc4Allocator::allocate(const BufferDescriptorInfo& descriptor, uint32_t* outStride,
66 hidl_handle* outHandle) {
67 if (!mDriver) {
68 drv_log("Failed to allocate. Driver is uninitialized.\n");
69 return Error::NO_RESOURCES;
70 }
71
72 if (!outStride || !outHandle) {
73 return Error::NO_RESOURCES;
74 }
75
76 struct cros_gralloc_buffer_descriptor crosDescriptor;
77 if (convertToCrosDescriptor(descriptor, &crosDescriptor)) {
78 return Error::UNSUPPORTED;
79 }
80
81 crosDescriptor.reserved_region_size += sizeof(CrosGralloc4Metadata);
82
83 if (!mDriver->is_supported(&crosDescriptor)) {
84 std::string drmFormatString = get_drm_format_string(crosDescriptor.drm_format);
85 std::string pixelFormatString = getPixelFormatString(descriptor.format);
86 std::string usageString = getUsageString(descriptor.usage);
87 drv_log("Unsupported combination -- pixel format: %s, drm format:%s, usage: %s\n",
88 pixelFormatString.c_str(), drmFormatString.c_str(), usageString.c_str());
89 return Error::UNSUPPORTED;
90 }
91
92 native_handle_t* handle;
93 int ret = mDriver->allocate(&crosDescriptor, &handle);
94 if (ret) {
95 return Error::NO_RESOURCES;
96 }
97
98 cros_gralloc_handle_t crosHandle = cros_gralloc_convert_handle(handle);
99
100 Error error = initializeMetadata(crosHandle, crosDescriptor);
101 if (error != Error::NONE) {
102 mDriver->release(handle);
103 native_handle_close(handle);
104 native_handle_delete(handle);
105 return error;
106 }
107
108 outHandle->setTo(handle, /*shouldOwn=*/true);
109 *outStride = crosHandle->pixel_stride;
110
111 return Error::NONE;
112 }
113
allocate(const hidl_vec<uint8_t> & descriptor,uint32_t count,allocate_cb hidlCb)114 Return<void> CrosGralloc4Allocator::allocate(const hidl_vec<uint8_t>& descriptor, uint32_t count,
115 allocate_cb hidlCb) {
116 hidl_vec<hidl_handle> handles;
117
118 if (!mDriver) {
119 drv_log("Failed to allocate. Driver is uninitialized.\n");
120 hidlCb(Error::NO_RESOURCES, 0, handles);
121 return Void();
122 }
123
124 BufferDescriptorInfo description;
125
126 int ret = android::gralloc4::decodeBufferDescriptorInfo(descriptor, &description);
127 if (ret) {
128 drv_log("Failed to allocate. Failed to decode buffer descriptor: %d.\n", ret);
129 hidlCb(Error::BAD_DESCRIPTOR, 0, handles);
130 return Void();
131 }
132
133 handles.resize(count);
134
135 uint32_t stride = 0;
136 for (int i = 0; i < handles.size(); i++) {
137 Error err = allocate(description, &stride, &(handles[i]));
138 if (err != Error::NONE) {
139 for (int j = 0; j < i; j++) {
140 mDriver->release(handles[j].getNativeHandle());
141 }
142 handles.resize(0);
143 hidlCb(err, 0, handles);
144 return Void();
145 }
146 }
147
148 hidlCb(Error::NONE, stride, handles);
149
150 for (const hidl_handle& handle : handles) {
151 mDriver->release(handle.getNativeHandle());
152 }
153
154 return Void();
155 }
156