f6566338eb
using a raw string to encapsulate the entire shader code limits us to shaders of size less than 2KB. This change overcomes this limitation.
33 lines
1.2 KiB
CMake
33 lines
1.2 KiB
CMake
set(SOURCE_FILE ${CMAKE_ARGV3})
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set(HEADER_FILE ${CMAKE_ARGV4})
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set(INPUT_FILE ${CMAKE_ARGV5})
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get_filename_component(CONTENTS_NAME ${SOURCE_FILE} NAME)
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string(REPLACE "." "_" CONTENTS_NAME ${CONTENTS_NAME})
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string(TOUPPER ${CONTENTS_NAME} CONTENTS_NAME)
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FILE(READ ${SOURCE_FILE} line_contents)
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# Replace double quotes with single quotes,
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# as double quotes will be used to wrap the lines
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STRING(REGEX REPLACE "\"" "'" line_contents "${line_contents}")
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# CMake separates list elements with semicolons, but semicolons
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# are used extensively in the shader code.
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# Replace with a temporary marker, to be reverted later.
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STRING(REGEX REPLACE ";" "{{SEMICOLON}}" line_contents "${line_contents}")
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# Make every line an individual element in the CMake list.
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STRING(REGEX REPLACE "\n" ";" line_contents "${line_contents}")
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# Build the shader string, wrapping each line in double quotes.
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foreach(line IN LISTS line_contents)
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string(CONCAT CONTENTS "${CONTENTS}" \"${line}\\n\"\n)
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endforeach()
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# Revert the original semicolons in the source.
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STRING(REGEX REPLACE "{{SEMICOLON}}" ";" CONTENTS "${CONTENTS}")
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get_filename_component(OUTPUT_DIR ${HEADER_FILE} DIRECTORY)
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make_directory(${OUTPUT_DIR})
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configure_file(${INPUT_FILE} ${HEADER_FILE} @ONLY)
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