1 /*
2  * Copyright 2016 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 #ifndef ANDROID_HARDWARE_GRAPHICS_ALLOCATOR_V2_0_GRALLOC1ALLOCATOR_H
18 #define ANDROID_HARDWARE_GRAPHICS_ALLOCATOR_V2_0_GRALLOC1ALLOCATOR_H
19 
20 #include <android/hardware/graphics/allocator/2.0/IAllocator.h>
21 #include <android/hardware/graphics/mapper/2.0/IMapper.h>
22 #include <hardware/gralloc1.h>
23 
24 namespace android {
25 namespace hardware {
26 namespace graphics {
27 namespace allocator {
28 namespace V2_0 {
29 namespace implementation {
30 
31 using android::hardware::graphics::mapper::V2_0::IMapper;
32 using android::hardware::graphics::mapper::V2_0::BufferDescriptor;
33 using android::hardware::graphics::mapper::V2_0::Error;
34 
35 class Gralloc1Allocator : public IAllocator {
36    public:
37     Gralloc1Allocator(const hw_module_t* module);
38     virtual ~Gralloc1Allocator();
39 
40     // IAllocator interface
41     Return<void> dumpDebugInfo(dumpDebugInfo_cb hidl_cb) override;
42     Return<void> allocate(const BufferDescriptor& descriptor, uint32_t count,
43                           allocate_cb hidl_cb) override;
44 
45    private:
46     void initCapabilities();
47 
48     template <typename T>
49     void initDispatch(gralloc1_function_descriptor_t desc, T* outPfn);
50     void initDispatch();
51 
52     static Error toError(int32_t error);
53     static uint64_t toProducerUsage(uint64_t usage);
54     static uint64_t toConsumerUsage(uint64_t usage);
55 
56     Error createDescriptor(const IMapper::BufferDescriptorInfo& info,
57                            gralloc1_buffer_descriptor_t* outDescriptor);
58     Error allocateOne(gralloc1_buffer_descriptor_t descriptor,
59                       buffer_handle_t* outBuffer, uint32_t* outStride);
60 
61     gralloc1_device_t* mDevice;
62 
63     struct {
64         bool layeredBuffers;
65     } mCapabilities;
66 
67     struct {
68         GRALLOC1_PFN_DUMP dump;
69         GRALLOC1_PFN_CREATE_DESCRIPTOR createDescriptor;
70         GRALLOC1_PFN_DESTROY_DESCRIPTOR destroyDescriptor;
71         GRALLOC1_PFN_SET_DIMENSIONS setDimensions;
72         GRALLOC1_PFN_SET_FORMAT setFormat;
73         GRALLOC1_PFN_SET_LAYER_COUNT setLayerCount;
74         GRALLOC1_PFN_SET_CONSUMER_USAGE setConsumerUsage;
75         GRALLOC1_PFN_SET_PRODUCER_USAGE setProducerUsage;
76         GRALLOC1_PFN_GET_STRIDE getStride;
77         GRALLOC1_PFN_ALLOCATE allocate;
78         GRALLOC1_PFN_RELEASE release;
79     } mDispatch;
80 };
81 
82 }  // namespace implementation
83 }  // namespace V2_0
84 }  // namespace allocator
85 }  // namespace graphics
86 }  // namespace hardware
87 }  // namespace android
88 
89 #endif  // ANDROID_HARDWARE_GRAPHICS_ALLOCATOR_V2_0_GRALLOC1ALLOCATOR_H
90