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allocator_mtl.h
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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 #ifndef FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_ALLOCATOR_MTL_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_ALLOCATOR_MTL_H_
7
8 #include <Metal/Metal.h>
9
10 #include "flutter/fml/macros.h"
11 #include "impeller/core/allocator.h"
12
13 namespace impeller {
14
15 class AllocatorMTL final : public Allocator {
16 public:
17 AllocatorMTL();
18
19 // |Allocator|
20 ~AllocatorMTL() override;
21
22 private:
23 friend class ContextMTL;
24
25 id<MTLDevice> device_;
26 std::string allocator_label_;
27 bool supports_memoryless_targets_ = false;
28 bool supports_uma_ = false;
29 bool is_valid_ = false;
30 ISize max_texture_supported_;
31
32 AllocatorMTL(id<MTLDevice> device, std::string label);
33
34 // |Allocator|
35 bool IsValid() const;
36
37 // |Allocator|
38 std::shared_ptr<DeviceBuffer> OnCreateBuffer(
39 const DeviceBufferDescriptor& desc) override;
40
41 // |Allocator|
42 std::shared_ptr<Texture> OnCreateTexture(
43 const TextureDescriptor& desc) override;
44
45 // |Allocator|
46 uint16_t MinimumBytesPerRow(PixelFormat format) const override;
47
48 // |Allocator|
49 ISize GetMaxTextureSizeSupported() const override;
50
51 AllocatorMTL(const AllocatorMTL&) = delete;
52
53 AllocatorMTL& operator=(const AllocatorMTL&) = delete;
54 };
55
56 } // namespace impeller
57
58 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_ALLOCATOR_MTL_H_
impeller::AllocatorMTL
Definition: allocator_mtl.h:15
impeller::DeviceBufferDescriptor
Definition: device_buffer_descriptor.h:14
impeller::AllocatorMTL::AllocatorMTL
AllocatorMTL()
impeller::PixelFormat
PixelFormat
The Pixel formats supported by Impeller. The naming convention denotes the usage of the component,...
Definition: formats.h:100
impeller::TSize< int64_t >
impeller::Allocator
An object that allocates device memory.
Definition: allocator.h:22
impeller::AllocatorMTL::~AllocatorMTL
~AllocatorMTL() override
allocator.h
impeller::TextureDescriptor
A lightweight object that describes the attributes of a texture that can then used an allocator to cr...
Definition: texture_descriptor.h:37
impeller::ContextMTL
Definition: context_mtl.h:35
impeller
Definition: aiks_blur_unittests.cc:20