Add support for specifying compile options (#592)

Fixes #433

* Adds COMPILE_OPTIONS command
  * currently only supported for OPENCL-C shaders
  * plumbed to Clspv
* Added tests
* Add docs

1 files changed, 17 insertions, 0 deletions

diff --git a/src/pipeline.cc b/src/pipeline.cc
index 08a8469..87ff88b 100644
--- a/src/pipeline.cc
+++ b/src/pipeline.cc
@@ -108,6 +108,23 @@ Result Pipeline::SetShaderOptimizations(const Shader* shader,
                 shader->GetName());
 }
 
+Result Pipeline::SetShaderCompileOptions(const Shader* shader,
+                                         const std::vector<std::string>& opts) {
+  if (!shader)
+    return Result("invalid shader specified for compile options");
+
+  for (auto& info : shaders_) {
+    const auto* is = info.GetShader();
+    if (is == shader) {
+      info.SetCompileOptions(opts);
+      return {};
+    }
+  }
+
+  return Result("unknown shader specified for compile options: " +
+                shader->GetName());
+}
+
 Result Pipeline::SetShaderEntryPoint(const Shader* shader,
                                      const std::string& name) {
   if (!shader)