| Flutter Impeller |

blit_pass_mtl.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_RENDERER_BACKEND_METAL_BLIT_PASS_MTL_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_BLIT_PASS_MTL_H_
7
8 #include <Metal/Metal.h>
9
10 #include "impeller/renderer/blit_pass.h"
11
12 namespace impeller {
13
14 class BlitPassMTL final : public BlitPass {
15 public:
16 // |RenderPass|
17 ~BlitPassMTL() override;
18
19 private:
20 friend class CommandBufferMTL;
21
22 id<MTLBlitCommandEncoder> encoder_ = nil;
23 id<MTLCommandBuffer> buffer_ = nil;
24 bool is_valid_ = false;
25 bool is_metal_trace_active_ = false;
26 // Many parts of the codebase will start writing to a render pass but
27 // never submit them. This boolean is used to track if a submit happened
28 // so that in the dtor we can always ensure the render pass is finished.
29 mutable bool did_finish_encoding_ = false;
30
31 explicit BlitPassMTL(id<MTLCommandBuffer> buffer);
32
33 // |BlitPass|
34 bool IsValid() const override;
35
36 // |BlitPass|
37 void OnSetLabel(std::string label) override;
38
39 // |BlitPass|
40 bool EncodeCommands(
41 const std::shared_ptr<Allocator>& transients_allocator) const override;
42
43 // |BlitPass|
44 bool OnCopyTextureToTextureCommand(std::shared_ptr<Texture> source,
45 std::shared_ptr<Texture> destination,
46 IRect source_region,
47 IPoint destination_origin,
48 std::string label) override;
49
50 // |BlitPass|
51 bool OnCopyTextureToBufferCommand(std::shared_ptr<Texture> source,
52 std::shared_ptr<DeviceBuffer> destination,
53 IRect source_region,
54 size_t destination_offset,
55 std::string label) override;
56 // |BlitPass|
57 bool OnCopyBufferToTextureCommand(BufferView source,
58 std::shared_ptr<Texture> destination,
59 IRect destination_region,
60 std::string label,
61 uint32_t slice,
62 bool convert_to_read) override;
63
64 // |BlitPass|
65 bool OnGenerateMipmapCommand(std::shared_ptr<Texture> texture,
66 std::string label) override;
67
68 BlitPassMTL(const BlitPassMTL&) = delete;
69
70 BlitPassMTL& operator=(const BlitPassMTL&) = delete;
71 };
72
73 } // namespace impeller
74
75 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_METAL_BLIT_PASS_MTL_H_
impeller::BlitPassMTL::~BlitPassMTL
~BlitPassMTL() override
Definition: blit_pass_mtl.mm:40
impeller::BlitPass
Blit passes encode blit into the underlying command buffer.
Definition: blit_pass.h:26
blit_pass.h
impeller::CommandBufferMTL
Definition: command_buffer_mtl.h:15
impeller::BufferView
Definition: buffer_view.h:15
impeller::TPoint< int64_t >
impeller::BlitPassMTL
Definition: blit_pass_mtl.h:14
impeller
Definition: aiks_blend_unittests.cc:18
impeller::TRect
Definition: rect.h:122