From 95d156a1502ca46b8301e1527ad14db9790495e7 Mon Sep 17 00:00:00 2001 From: ReinUsesLisp Date: Wed, 30 Dec 2020 01:29:04 -0300 Subject: [PATCH] video_core/host_shaders: Add support for prebuilt SPIR-V shaders Add support for building SPIR-V shaders from GLSL and generating headers to include the text of those same GLSL shaders to consume from OpenGL. --- src/video_core/host_shaders/CMakeLists.txt | 53 +++++++++++++++------- 1 file changed, 37 insertions(+), 16 deletions(-) diff --git a/src/video_core/host_shaders/CMakeLists.txt b/src/video_core/host_shaders/CMakeLists.txt index c157724a91..ff20bc93b8 100644 --- a/src/video_core/host_shaders/CMakeLists.txt +++ b/src/video_core/host_shaders/CMakeLists.txt @@ -1,8 +1,12 @@ -set(SHADER_SOURCES +set(SHADER_FILES opengl_present.frag opengl_present.vert ) +find_program(GLSLANGVALIDATOR "glslangValidator" REQUIRED) + +set(GLSL_FLAGS "") + set(SHADER_INCLUDE ${CMAKE_CURRENT_BINARY_DIR}/include) set(SHADER_DIR ${SHADER_INCLUDE}/video_core/host_shaders) set(HOST_SHADERS_INCLUDE ${SHADER_INCLUDE} PARENT_SCOPE) @@ -10,27 +14,44 @@ set(HOST_SHADERS_INCLUDE ${SHADER_INCLUDE} PARENT_SCOPE) set(INPUT_FILE ${CMAKE_CURRENT_SOURCE_DIR}/source_shader.h.in) set(HEADER_GENERATOR ${CMAKE_CURRENT_SOURCE_DIR}/StringShaderHeader.cmake) -foreach(FILENAME IN ITEMS ${SHADER_SOURCES}) +foreach(FILENAME IN ITEMS ${SHADER_FILES}) string(REPLACE "." "_" SHADER_NAME ${FILENAME}) set(SOURCE_FILE ${CMAKE_CURRENT_SOURCE_DIR}/${FILENAME}) - set(HEADER_FILE ${SHADER_DIR}/${SHADER_NAME}.h) - add_custom_command( - OUTPUT - ${HEADER_FILE} - COMMAND - ${CMAKE_COMMAND} -P ${HEADER_GENERATOR} ${SOURCE_FILE} ${HEADER_FILE} ${INPUT_FILE} - MAIN_DEPENDENCY - ${SOURCE_FILE} - DEPENDS - ${INPUT_FILE} - # HEADER_GENERATOR should be included here but msbuild seems to assume it's always modified - ) - set(SHADER_HEADERS ${SHADER_HEADERS} ${HEADER_FILE}) + # Skip generating source headers on Vulkan exclusive files + if (NOT ${FILENAME} MATCHES "vulkan.*") + set(SOURCE_HEADER_FILE ${SHADER_DIR}/${SHADER_NAME}.h) + add_custom_command( + OUTPUT + ${SOURCE_HEADER_FILE} + COMMAND + ${CMAKE_COMMAND} -P ${HEADER_GENERATOR} ${SOURCE_FILE} ${SOURCE_HEADER_FILE} ${INPUT_FILE} + MAIN_DEPENDENCY + ${SOURCE_FILE} + DEPENDS + ${INPUT_FILE} + # HEADER_GENERATOR should be included here but msbuild seems to assume it's always modified + ) + set(SHADER_HEADERS ${SHADER_HEADERS} ${SOURCE_HEADER_FILE}) + endif() + # Skip compiling to SPIR-V OpenGL exclusive files + if (NOT ${FILENAME} MATCHES "opengl.*") + string(TOUPPER ${SHADER_NAME}_SPV SPIRV_VARIABLE_NAME) + set(SPIRV_HEADER_FILE ${SHADER_DIR}/${SHADER_NAME}_spv.h) + add_custom_command( + OUTPUT + ${SPIRV_HEADER_FILE} + COMMAND + ${GLSLANGVALIDATOR} -V ${GLSL_FLAGS} --variable-name ${SPIRV_VARIABLE_NAME} -o ${SPIRV_HEADER_FILE} ${SOURCE_FILE} + MAIN_DEPENDENCY + ${SOURCE_FILE} + ) + set(SHADER_HEADERS ${SHADER_HEADERS} ${SPIRV_HEADER_FILE}) + endif() endforeach() add_custom_target(host_shaders DEPENDS ${SHADER_HEADERS} SOURCES - ${SHADER_SOURCES} + ${SHADER_FILES} )