| Flutter Impeller |

blit_pass_gles.cc
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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 "impeller/renderer/backend/gles/blit_pass_gles.h"
6
7 #include <memory>
8
9 #include "flutter/fml/trace_event.h"
10 #include "fml/closure.h"
11 #include "impeller/core/formats.h"
12 #include "impeller/renderer/backend/gles/blit_command_gles.h"
13 #include "impeller/renderer/backend/gles/proc_table_gles.h"
14
15 namespace impeller {
16
17 BlitPassGLES::BlitPassGLES(ReactorGLES::Ref reactor)
18 : reactor_(std::move(reactor)),
19 is_valid_(reactor_ && reactor_->IsValid()) {}
20
21 // |BlitPass|
22 BlitPassGLES::~BlitPassGLES() = default;
23
24 // |BlitPass|
25 bool BlitPassGLES::IsValid() const {
26 return is_valid_;
27 }
28
29 // |BlitPass|
30 void BlitPassGLES::OnSetLabel(std::string label) {
31 label_ = std::move(label);
32 }
33
34 [[nodiscard]] bool EncodeCommandsInReactor(
35 const std::shared_ptr<Allocator>& transients_allocator,
36 const ReactorGLES& reactor,
37 const std::vector<std::unique_ptr<BlitEncodeGLES>>& commands,
38 const std::string& label) {
39 TRACE_EVENT0("impeller", "BlitPassGLES::EncodeCommandsInReactor");
40
41 if (commands.empty()) {
42 return true;
43 }
44
45 const auto& gl = reactor.GetProcTable();
46
47 fml::ScopedCleanupClosure pop_pass_debug_marker(
48 [&gl]() { gl.PopDebugGroup(); });
49 if (!label.empty()) {
50 gl.PushDebugGroup(label);
51 } else {
52 pop_pass_debug_marker.Release();
53 }
54
55 for (const auto& command : commands) {
56 fml::ScopedCleanupClosure pop_cmd_debug_marker(
57 [&gl]() { gl.PopDebugGroup(); });
58 auto label = command->GetLabel();
59 if (!label.empty()) {
60 gl.PushDebugGroup(label);
61 } else {
62 pop_cmd_debug_marker.Release();
63 }
64
65 if (!command->Encode(reactor)) {
66 return false;
67 }
68 }
69
70 return true;
71 }
72
73 // |BlitPass|
74 bool BlitPassGLES::EncodeCommands(
75 const std::shared_ptr<Allocator>& transients_allocator) const {
76 if (!IsValid()) {
77 return false;
78 }
79 if (commands_.empty()) {
80 return true;
81 }
82
83 std::shared_ptr<const BlitPassGLES> shared_this = shared_from_this();
84 return reactor_->AddOperation([transients_allocator,
85 blit_pass = std::move(shared_this),
86 label = label_](const auto& reactor) {
87 auto result = EncodeCommandsInReactor(transients_allocator, reactor,
88 blit_pass->commands_, label);
89 FML_CHECK(result) << "Must be able to encode GL commands without error.";
90 });
91 }
92
93 // |BlitPass|
94 bool BlitPassGLES::OnCopyTextureToTextureCommand(
95 std::shared_ptr<Texture> source,
96 std::shared_ptr<Texture> destination,
97 IRect source_region,
98 IPoint destination_origin,
99 std::string label) {
100 auto command = std::make_unique<BlitCopyTextureToTextureCommandGLES>();
101 command->label = label;
102 command->source = std::move(source);
103 command->destination = std::move(destination);
104 command->source_region = source_region;
105 command->destination_origin = destination_origin;
106
107 commands_.emplace_back(std::move(command));
108 return true;
109 }
110
111 // |BlitPass|
112 bool BlitPassGLES::OnCopyTextureToBufferCommand(
113 std::shared_ptr<Texture> source,
114 std::shared_ptr<DeviceBuffer> destination,
115 IRect source_region,
116 size_t destination_offset,
117 std::string label) {
118 auto command = std::make_unique<BlitCopyTextureToBufferCommandGLES>();
119 command->label = label;
120 command->source = std::move(source);
121 command->destination = std::move(destination);
122 command->source_region = source_region;
123 command->destination_offset = destination_offset;
124
125 commands_.emplace_back(std::move(command));
126 return true;
127 }
128
129 // |BlitPass|
130 bool BlitPassGLES::OnGenerateMipmapCommand(std::shared_ptr<Texture> texture,
131 std::string label) {
132 auto command = std::make_unique<BlitGenerateMipmapCommandGLES>();
133 command->label = label;
134 command->texture = std::move(texture);
135
136 commands_.emplace_back(std::move(command));
137 return true;
138 }
139
140 } // namespace impeller
impeller::ReactorGLES::GetProcTable
const ProcTableGLES & GetProcTable() const
Get the OpenGL proc. table the reactor uses to manage handles.
Definition: reactor_gles.cc:48
impeller::ProcTableGLES::PushDebugGroup
void PushDebugGroup(const std::string &string) const
Definition: proc_table_gles.cc:365
impeller::ReactorGLES::Ref
std::shared_ptr< ReactorGLES > Ref
Definition: reactor_gles.h:87
formats.h
impeller::BlitPassGLES::~BlitPassGLES
~BlitPassGLES() override
proc_table_gles.h
impeller::IRect
TRect< int64_t > IRect
Definition: rect.h:489
blit_command_gles.h
blit_pass_gles.h
std
Definition: comparable.h:95
impeller::IPoint
TPoint< int64_t > IPoint
Definition: point.h:309
impeller::ReactorGLES
The reactor attempts to make thread-safe usage of OpenGL ES easier to reason about.
Definition: reactor_gles.h:56
impeller::EncodeCommandsInReactor
bool EncodeCommandsInReactor(const std::shared_ptr< Allocator > &transients_allocator, const ReactorGLES &reactor, const std::vector< std::unique_ptr< BlitEncodeGLES >> &commands, const std::string &label)
Definition: blit_pass_gles.cc:34
impeller
Definition: aiks_context.cc:10