[gfx] Metal graphics support (#4324)

* fix double semicolons

* fix another double semicolon

* wait for init data upload

* remove obsolete setData

* refactor swapchain to work on virtual back buffers

* buffer/texture use breakable device reference

* refactor input layout

* create render command encoder

* add todo

* refactor framebuffer layout

* refactor framebuffer

* refactor shader program

* translatePrimitiveType

* add more translate functions

* refactor framebuffer

* refactor render pass

* implement graphics pipeline state

* add depth stencil state

* initial render command encoder support

* comment

1 files changed, 9 insertions, 6 deletions

diff --git a/tools/gfx/metal/metal-shader-program.cpp b/tools/gfx/metal/metal-shader-program.cpp
index 1b998bc57..e0f973eb6 100644
--- a/tools/gfx/metal/metal-shader-program.cpp
+++ b/tools/gfx/metal/metal-shader-program.cpp
@@ -22,19 +22,22 @@ ShaderProgramImpl::~ShaderProgramImpl()
 
 Result ShaderProgramImpl::createShaderModule(slang::EntryPointReflection* entryPointInfo, ComPtr<ISlangBlob> kernelCode)
 {
-    m_codeBlobs.add(kernelCode);
-    const char* realEntryPointName = entryPointInfo->getNameOverride();
+    Module module;
+    module.stage = entryPointInfo->getStage();
+    module.entryPointName = entryPointInfo->getNameOverride();
+    module.code = kernelCode;
+    
     dispatch_data_t data = dispatch_data_create(kernelCode->getBufferPointer(), kernelCode->getBufferSize(), dispatch_get_main_queue(), NULL);
     NS::Error* error;
-    NS::SharedPtr<MTL::Library> library = NS::TransferPtr(m_device->m_device->newLibrary(data, &error));
-    if (!library)
+    module.library = NS::TransferPtr(m_device->m_device->newLibrary(data, &error));
+    if (!module.library)
     {
         // TODO use better mechanism for reporting errors
         std::cout << error->localizedDescription()->utf8String() << std::endl;
         return SLANG_E_INVALID_ARG;
     }
-    m_entryPointNames.add(realEntryPointName);
-    m_modules.add(library);
+
+    m_modules.add(module);
     return SLANG_OK;
 }