1 /*
2 * Copyright (c) 2024 Huawei Device Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License");
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 * http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15
16 #include "shader_state_loader.h"
17
18 #include <cctype>
19 #include <locale>
20
21 #include <base/containers/string.h>
22 #include <core/io/intf_file_manager.h>
23 #include <core/namespace.h>
24
25 #include "json_util.h"
26 #include "shader_state_loader_util.h"
27 #include "util/log.h"
28
29 using namespace BASE_NS;
30 using namespace CORE_NS;
31
32 RENDER_BEGIN_NAMESPACE()
33 namespace {
LoadImpl(const string_view jsonString)34 ShaderStateLoaderUtil::ShaderStateResult LoadImpl(const string_view jsonString)
35 {
36 const auto json = json::parse(jsonString.data());
37 if (json) {
38 ShaderStateLoaderUtil::ShaderStateResult ssr = ShaderStateLoaderUtil::LoadStates(json);
39 return ssr;
40 } else {
41 return ShaderStateLoaderUtil::ShaderStateResult { ShaderStateLoader::LoadResult { "Invalid json file." }, {} };
42 }
43 }
44 } // namespace
45
Load(IFileManager & fileManager,const string_view uri)46 ShaderStateLoader::LoadResult ShaderStateLoader::Load(IFileManager& fileManager, const string_view uri)
47 {
48 uri_ = uri;
49 IFile::Ptr file = fileManager.OpenFile(uri);
50 if (!file) {
51 PLUGIN_LOG_D("Error loading '%s'", uri_.c_str());
52 return LoadResult("Failed to open file.");
53 }
54
55 const uint64_t byteLength = file->GetLength();
56
57 string raw;
58 raw.resize(static_cast<size_t>(byteLength));
59
60 if (file->Read(raw.data(), byteLength) != byteLength) {
61 PLUGIN_LOG_D("Error loading '%s'", uri_.c_str());
62 return LoadResult("Failed to read file.");
63 }
64
65 ShaderStateLoaderUtil::ShaderStateResult ssr = RENDER_NS::LoadImpl(string_view(raw));
66 graphicsStates_ = move(ssr.states.states);
67 graphicsStateVariantData_ = move(ssr.states.variantData);
68
69 return ssr.res;
70 }
71
GetUri() const72 string_view ShaderStateLoader::GetUri() const
73 {
74 return uri_;
75 }
76
GetGraphicsStateVariantData() const77 array_view<const ShaderStateLoaderVariantData> ShaderStateLoader::GetGraphicsStateVariantData() const
78 {
79 return graphicsStateVariantData_;
80 }
81
GetGraphicsStates() const82 array_view<const GraphicsState> ShaderStateLoader::GetGraphicsStates() const
83 {
84 return graphicsStates_;
85 }
86
87 RENDER_END_NAMESPACE()
88