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allocator_mtl_unittests.mm
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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 #include "flutter/testing/testing.h"
6 #include "impeller/core/device_buffer_descriptor.h"
7 #include "impeller/core/formats.h"
8 #include "impeller/core/texture_descriptor.h"
9 #include "impeller/playground/playground_test.h"
10 #include "impeller/renderer/backend/metal/allocator_mtl.h"
11 #include "impeller/renderer/backend/metal/context_mtl.h"
12 #include "impeller/renderer/backend/metal/formats_mtl.h"
13 #include "impeller/renderer/backend/metal/texture_mtl.h"
14 #include "impeller/renderer/capabilities.h"
15
16 #include <QuartzCore/CAMetalLayer.h>
17 #include <memory>
18 #include <thread>
19
20 #include "gtest/gtest.h"
21
22 namespace impeller {
23 namespace testing {
24
25 using AllocatorMTLTest = PlaygroundTest;
26 INSTANTIATE_METAL_PLAYGROUND_SUITE(AllocatorMTLTest);
27
28 TEST_P(AllocatorMTLTest, DebugTraceMemoryStatistics) {
29 auto& context_mtl = ContextMTL::Cast(*GetContext());
30 const auto& allocator = context_mtl.GetResourceAllocator();
31
32 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
33 0u);
34
35 // Memoryless texture does not increase allocated size.
36 {
37 TextureDescriptor desc;
38 desc.format = PixelFormat::kR8G8B8A8UNormInt;
39 desc.storage_mode = StorageMode::kDeviceTransient;
40 desc.size = {1024, 1024};
41 auto texture_1 = allocator->CreateTexture(desc);
42
43 // Private storage texture increases allocated size.
44 desc.storage_mode = StorageMode::kDevicePrivate;
45 auto texture_2 = allocator->CreateTexture(desc);
46
47 #ifdef IMPELLER_DEBUG
48 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
49 4u);
50 #else
51 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
52 0u);
53 #endif // IMPELLER_DEBUG
54
55 // Host storage texture increases allocated size.
56 desc.storage_mode = StorageMode::kHostVisible;
57 auto texture_3 = allocator->CreateTexture(desc);
58
59 #ifdef IMPELLER_DEBUG
60 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
61 8u);
62 #else
63 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
64 0u);
65 #endif // IMPELLER_DEBUG
66 }
67
68 // After all textures are out of scope, memory has been decremented.
69 EXPECT_EQ(allocator->DebugGetHeapUsage().ConvertTo<MebiBytes>().GetSize(),
70 0u);
71 }
72
73 TEST_P(AllocatorMTLTest, ManagedMemory) {
74 auto& context_mtl = ContextMTL::Cast(*GetContext());
75 auto allocator = std::make_unique<AllocatorMTL>(context_mtl.GetMTLDevice(),
76 "test-allocator");
77 allocator->DebugSetSupportsUMA(false);
78
79 DeviceBufferDescriptor desc;
80 desc.size = 100;
81 desc.storage_mode = StorageMode::kHostVisible;
82
83 auto buffer = allocator->CreateBuffer(desc);
84 ASSERT_TRUE(buffer);
85
86 EXPECT_NE(buffer->OnGetContents(), nullptr);
87 }
88
89 } // namespace testing
90 } // namespace impeller
allocator_mtl.h
capabilities.h
impeller::AllocationSize
Represents the size of an allocation in different units.
Definition: allocation_size.h:29
impeller::AllocationSize::GetSize
constexpr double GetSize() const
Definition: allocation_size.h:76
impeller::BackendCast< ContextMTL, Context >::Cast
static ContextMTL & Cast(Context &base)
Definition: backend_cast.h:13
impeller::PlaygroundTest
Definition: playground_test.h:22
formats.h
device_buffer_descriptor.h
formats_mtl.h
impeller::testing::TEST_P
TEST_P(AiksTest, DrawAtlasNoColor)
Definition: aiks_dl_atlas_unittests.cc:60
impeller::testing::INSTANTIATE_METAL_PLAYGROUND_SUITE
INSTANTIATE_METAL_PLAYGROUND_SUITE(AllocatorMTLTest)
impeller
Definition: allocation.cc:12
impeller::StorageMode::kDevicePrivate
@ kDevicePrivate
impeller::StorageMode::kHostVisible
@ kHostVisible
impeller::StorageMode::kDeviceTransient
@ kDeviceTransient
impeller::PixelFormat::kR8G8B8A8UNormInt
@ kR8G8B8A8UNormInt
playground_test.h
context_mtl.h
impeller::DeviceBufferDescriptor
Definition: device_buffer_descriptor.h:14
impeller::DeviceBufferDescriptor::storage_mode
StorageMode storage_mode
Definition: device_buffer_descriptor.h:15
impeller::DeviceBufferDescriptor::size
size_t size
Definition: device_buffer_descriptor.h:16
impeller::TextureDescriptor
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...
Definition: texture_descriptor.h:38
impeller::TextureDescriptor::size
ISize size
Definition: texture_descriptor.h:42
impeller::TextureDescriptor::storage_mode
StorageMode storage_mode
Definition: texture_descriptor.h:39
impeller::TextureDescriptor::format
PixelFormat format
Definition: texture_descriptor.h:41
texture_descriptor.h
texture_mtl.h