CMakeLists.txt

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cmake_minimum_required(VERSION 3.5)

PROJECT(spvgen VERSION 1 LANGUAGES C CXX)

if (CMAKE_COMPILER_IS_GNUCC OR CMAKE_C_COMPILER_ID MATCHES "Clang")
	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -std=c++11 -fno-rtti")
endif ()

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

# Cater for LLPC moving into an llpc subdirectory in its repository.
if (EXISTS ${PROJECT_SOURCE_DIR}/../llpc/llpc/CMakeLists.txt)
  set(XGL_LLPC_PATH ${PROJECT_SOURCE_DIR}/../llpc/llpc CACHE PATH "Specify the path to the LLPC." FORCE)
elseif (EXISTS ${PROJECT_SOURCE_DIR}/../llpc/CMakeLists.txt)
  set(XGL_LLPC_PATH ${PROJECT_SOURCE_DIR}/../llpc CACHE PATH "Specify the path to the LLPC." FORCE)
endif()

set(VULKAN_HEADER_PATH ${PROJECT_SOURCE_DIR}/../xgl/icd/api/include/khronos CACHE PATH "Specify the path to vulkan header files.")

set(SPVGEN_BINARY_DIR ${CMAKE_CURRENT_BINARY_DIR} PARENT_SCOPE)

add_definitions(-DVFX_INSIDE_SPVGEN=1)

add_definitions(-DNV_EXTENSIONS)

add_definitions(-DAMD_EXTENSIONS)

add_definitions(-DENABLE_HLSL)

# These two directories only exist after the user does "cd external && python fetch_external_sources.py".
# You cannot build spvgen without them, but we do not want the cmake stage to fail when they are not
# present, as spvgen is not built as part of the "all" target.
if(EXISTS ${PROJECT_SOURCE_DIR}/external/glslang/CMakeLists.txt)
    add_subdirectory(external/glslang)
endif()
if(EXISTS ${PROJECT_SOURCE_DIR}/external/SPIRV-tools/CMakeLists.txt)
    add_subdirectory(external/SPIRV-tools)
endif()

add_library(spvgen SHARED "")

set_target_properties(spvgen PROPERTIES PREFIX "")

if(EXISTS ${PROJECT_SOURCE_DIR}/../llpc/tool/vfx)
    set(XGL_VFX_PATH ${PROJECT_SOURCE_DIR}/../llpc/tool/vfx CACHE PATH "The path of vfx.")
else()
    set(XGL_VFX_PATH ${PROJECT_SOURCE_DIR}/../llpc/llpc/tool/vfx CACHE PATH "The path of vfx.")
endif()

set(XGL_LLPC_INC_DIR ${PROJECT_SOURCE_DIR}/../llpc/llpc/include CACHE PATH "The path of llpc.h for spvgen")

include_directories(
	include
	external/glslang
	external/glslang/SPIRV
	external/SPIRV-tools/include
	external/llpc/include
	${XGL_LLPC_INC_DIR}
	${XGL_VFX_PATH}
	${VULKAN_HEADER_PATH}
)

target_sources(spvgen PRIVATE
	source/spvgen.cpp
    ${XGL_VFX_PATH}/vfxParser.cpp
    ${XGL_VFX_PATH}/vfxPipelineDoc.cpp
    ${XGL_VFX_PATH}/vfxRenderDoc.cpp
    ${XGL_VFX_PATH}/vfxSection.cpp
    ${XGL_VFX_PATH}/vfxEnumsConverter.cpp
)

target_link_libraries(spvgen glslang HLSL OGLCompiler SPIRV SPIRV-Tools SPIRV-Tools-opt)