| // Copyright 2016 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIB_ESCHER_ESCHER_PROCESS_INIT_H_ |
| #define LIB_ESCHER_ESCHER_PROCESS_INIT_H_ |
| |
| namespace escher { |
| |
| // Escher currently incorporates the Khronos GLSL reference compiler ("glslang") |
| // that is included in the Vulkan SDK. This codebase requires that the client |
| // call glslang::InitializeProcess() before using any of its functionality, and |
| // glslang::FinalizeProcess() when finished. |
| // |
| // Some Escher clients may wish to directly use the glslang framework; in order |
| // to not conflict with these use cases, Escher requires clients to also call |
| // these two functions, before the first Escher instance is created, and after |
| // the last instance is destroyed. |
| // |
| // For clients that do not glslang framework, Escher provides the following |
| // two wrapper functions so that the client does not need to include the glslang |
| // headers. |
| // |
| // This is admittedly clumsy. In the long term, Escher will avoid initializing |
| // any per-process or per-thread state that may conflict with other client code; |
| // it will be enough to simply create and destroy Escher instances. |
| void GlslangInitializeProcess(); |
| void GlslangFinalizeProcess(); |
| |
| } // namespace escher |
| |
| #endif // LIB_ESCHER_ESCHER_PROCESS_INIT_H_ |
