Shader linking i guess

materialsystem/vulkan/rtshader.cpp

@@ -0,0 +1,68 @@
+#include "vulkan_state.h"
+#include "rtlinker.h"
+#include "materialsystem/compiledshadermgr.h"
+
+uint32_t CVkRayTracingShader::GetMissShaderBinding( const char *szName )
+{
+
+}
+
+uint32_t CVkRayTracingShader::GetClosestHitShaderBinding( const char *szName )
+{
+
+}
+
+uint32_t CVkRayTracingShader::GetCallableShaderBinding( const char *szName )
+{
+
+}
+
+void CVkRayTracingShader::AddShader( const char *szName, const char *szPath )
+{
+	ICompiledShaderManager *pCompiledShaderManager = (ICompiledShaderManager*)CreateInterface(COMPILED_SHADER_MANAGER_INTERFACE_VERSION, NULL);
+	CCompiledShader shader = {};
+	pCompiledShaderManager->ReadFromFile(&shader, szPath);
+	m_callableShaders.AppendTail( {szName, shader} );
+}
+
+void CVkRayTracingShader::RemoveShader( const char *szName )
+{
+
+}
+
+void CVkRayTracingShader::Build()
+{
+	if (g_vkAvailableExtensions.bIsSupported_VK_KHR_RAY_TRACING_PIPELINE)
+		BuildTrace();
+	else
+		BuildCompute();
+
+}
+
+void CVkRayTracingShader::BuildCompute()
+{
+	CVkShaderLinker linker = {};
+	ShaderObject_t *pShader;
+
+	pShader = m_shader.FindShaderObject(SHADER_BACKEND_SPIRV_VULKAN, SHADER_STAGE_RAYGEN_SOFTWARE);
+	if (!pShader)
+		return;
+
+	linker.SetMainSpirv(m_shader.GetLumpSize(pShader->m_nDataLump)/4, 
+			(uint32_t*)m_shader.GetLumpPtr(pShader->m_nDataLump));
+	for ( auto s: m_callableShaders )
+	{
+		pShader = s.m_shader.FindShaderObject(SHADER_BACKEND_SPIRV_VULKAN, SHADER_STAGE_CALLABLE_SOFTWARE);
+		if (!pShader)
+			continue;
+		linker.AddSpirv(s.m_shader.GetLumpSize(pShader->m_nDataLump)/4, 
+				(uint32_t*)s.m_shader.GetLumpPtr(pShader->m_nDataLump));
+	}
+	linker.Build();
+
+}
+
+void CVkRayTracingShader::BuildTrace()
+{
+
+}