| Flutter Impeller |

proc_table.h
Go to the documentation of this file.
1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #ifndef FLUTTER_IMPELLER_TOOLKIT_ANDROID_PROC_TABLE_H_
6 #define FLUTTER_IMPELLER_TOOLKIT_ANDROID_PROC_TABLE_H_
7
8 #include <EGL/egl.h>
9 #define EGL_EGLEXT_PROTOTYPES
10 #include <EGL/eglext.h>
11 #include <android/api-level.h>
12 #include <android/hardware_buffer.h>
13 #include <android/hardware_buffer_jni.h>
14 #include <android/surface_control.h>
15 #include <android/trace.h>
16
17 #include <functional>
18
19 #include "flutter/fml/logging.h"
20 #include "flutter/fml/native_library.h"
21
22 namespace impeller::android {
23
24 ASurfaceTransaction* ASurfaceTransaction_fromJava(JNIEnv* env,
25 jobject transaction);
26
27 //------------------------------------------------------------------------------
28 /// @brief The Android procs along with the device API level on which these
29 /// will be available. There is no checking of the actual API level
30 /// however (because getting the API level is itself only possible
31 /// on API levels 29 and above).
32 ///
33 /// Take care to explicitly check for the availability of these APIs
34 /// at runtime before invoking them.
35 ///
36 /// Typically, you'll never have to deal with the proc. table
37 /// directly. Instead, rely on the handle wrappers (`Choreographer`,
38 /// `HardwareBuffer`, etc..).
39 ///
40 #define FOR_EACH_ANDROID_PROC(INVOKE) \
41 INVOKE(AChoreographer_getInstance, 24) \
42 INVOKE(AChoreographer_postFrameCallback, 24) \
43 INVOKE(AChoreographer_postFrameCallback64, 29) \
44 INVOKE(AHardwareBuffer_acquire, 26) \
45 INVOKE(AHardwareBuffer_allocate, 26) \
46 INVOKE(AHardwareBuffer_describe, 26) \
47 INVOKE(AHardwareBuffer_fromHardwareBuffer, 26) \
48 INVOKE(AHardwareBuffer_getId, 31) \
49 INVOKE(AHardwareBuffer_isSupported, 29) \
50 INVOKE(AHardwareBuffer_lock, 26) \
51 INVOKE(AHardwareBuffer_release, 26) \
52 INVOKE(AHardwareBuffer_unlock, 26) \
53 INVOKE(ANativeWindow_acquire, 0) \
54 INVOKE(ANativeWindow_getHeight, 0) \
55 INVOKE(ANativeWindow_getWidth, 0) \
56 INVOKE(ANativeWindow_release, 0) \
57 INVOKE(ASurfaceControl_createFromWindow, 29) \
58 INVOKE(ASurfaceControl_release, 29) \
59 INVOKE(ASurfaceTransaction_apply, 29) \
60 INVOKE(ASurfaceTransaction_create, 29) \
61 INVOKE(ASurfaceTransaction_delete, 29) \
62 INVOKE(ASurfaceTransaction_reparent, 29) \
63 INVOKE(ASurfaceTransaction_setBuffer, 29) \
64 INVOKE(ASurfaceTransaction_setColor, 29) \
65 INVOKE(ASurfaceTransaction_setOnComplete, 29) \
66 INVOKE(ASurfaceTransactionStats_getPreviousReleaseFenceFd, 29) \
67 INVOKE(ASurfaceTransaction_fromJava, 34) \
68 INVOKE(ATrace_isEnabled, 23) \
69 INVOKE(eglGetNativeClientBufferANDROID, 0)
70
71 template <class T>
72 struct AndroidProc {
73 using AndroidProcType = T;
74
75 const char* proc_name = nullptr;
76
77 AndroidProcType* proc = nullptr;
78
79 constexpr bool IsAvailable() const { return proc != nullptr; }
80
81 explicit constexpr operator bool() const { return IsAvailable(); }
82
83 template <class... Args>
84 auto operator()(Args&&... args) const {
85 FML_DCHECK(IsAvailable())
86 << "Android method " << proc_name
87 << " is not available on this device. Missing check.";
88 return proc(std::forward<Args>(args)...);
89 }
90
91 void Reset() { proc = nullptr; }
92 };
93
94 //------------------------------------------------------------------------------
95 /// @brief The table of Android procs that are resolved dynamically.
96 ///
97 struct ProcTable {
98 ProcTable();
99
100 ~ProcTable();
101
102 ProcTable(const ProcTable&) = delete;
103
104 ProcTable& operator=(const ProcTable&) = delete;
105
106 //----------------------------------------------------------------------------
107 /// @brief If a valid proc table could be setup. This may fail in case of
108 /// setup on non-Android platforms.
109 ///
110 /// @return `true` if valid.
111 ///
112 bool IsValid() const;
113
114 //----------------------------------------------------------------------------
115 /// @brief Check if tracing in enabled in the process. This call can be
116 /// made at any API level.
117 ///
118 /// @return If tracing is enabled.
119 ///
120 bool TraceIsEnabled() const;
121
122 #define DEFINE_PROC(name, api) \
123 AndroidProc<decltype(name)> name = {.proc_name = #name};
124 FOR_EACH_ANDROID_PROC(DEFINE_PROC);
125 #undef DEFINE_PROC
126
127 private:
128 std::vector<fml::RefPtr<fml::NativeLibrary>> libraries_;
129 bool is_valid_ = false;
130 };
131
132 const ProcTable& GetProcTable();
133
134 #ifdef TESTING
135 ProcTable& GetMutableProcTable();
136 #endif
137
138 } // namespace impeller::android
139
140 #endif // FLUTTER_IMPELLER_TOOLKIT_ANDROID_PROC_TABLE_H_
DEFINE_PROC
#define DEFINE_PROC(name, api)
Definition: proc_table.h:122
hardware_buffer.h
impeller::android
Definition: ahb_texture_source_vk_unittests.cc:16
impeller::android::GetProcTable
const ProcTable & GetProcTable()
Definition: proc_table.cc:12
impeller::android::ASurfaceTransaction_fromJava
ASurfaceTransaction * ASurfaceTransaction_fromJava(JNIEnv *env, jobject transaction)
impeller::android::GetMutableProcTable
ProcTable & GetMutableProcTable()
Definition: proc_table.cc:18
impeller::android::AndroidProc
Definition: proc_table.h:72
impeller::android::AndroidProc::Reset
void Reset()
Definition: proc_table.h:91
impeller::android::AndroidProc::proc_name
const char * proc_name
Definition: proc_table.h:75
impeller::android::AndroidProc::AndroidProcType
T AndroidProcType
Definition: proc_table.h:73
impeller::android::AndroidProc::operator()
auto operator()(Args &&... args) const
Definition: proc_table.h:84
impeller::android::AndroidProc::IsAvailable
constexpr bool IsAvailable() const
Definition: proc_table.h:79
impeller::android::AndroidProc::proc
AndroidProcType * proc
Definition: proc_table.h:77
impeller::android::ProcTable
The table of Android procs that are resolved dynamically.
Definition: proc_table.h:97
impeller::android::ProcTable::~ProcTable
~ProcTable()
impeller::android::ProcTable::ProcTable
ProcTable(const ProcTable &)=delete
impeller::android::ProcTable::FOR_EACH_ANDROID_PROC
FOR_EACH_ANDROID_PROC(DEFINE_PROC)
impeller::android::ProcTable::ProcTable
ProcTable()
Definition: proc_table.cc:34
impeller::android::ProcTable::IsValid
bool IsValid() const
If a valid proc table could be setup. This may fail in case of setup on non-Android platforms.
Definition: proc_table.cc:65
impeller::android::ProcTable::TraceIsEnabled
bool TraceIsEnabled() const
Check if tracing in enabled in the process. This call can be made at any API level.
Definition: proc_table.cc:69
impeller::android::ProcTable::operator=
ProcTable & operator=(const ProcTable &)=delete
surface_control.h