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# CMake Helper for Binary Resources
# Copyright: 2020 Jaakko Keränen <jaakko.keranen@iki.fi>
# License: BSD 2-Clause
option (ENABLE_RESOURCE_EMBED "Embed resources inside the executable" OFF)
option (ENABLE_BINCAT_SH "Prepare resource files using the 'bincat.sh' shell script" OFF)
if (ENABLE_BINCAT_SH OR CMAKE_CROSSCOMPILING)
set (embed_use_bincat_sh YES)
endif ()
# Build "bincat" for concatenating files.
if (embed_use_bincat_sh)
set (BINCAT_COMMAND ${CMAKE_SOURCE_DIR}/res/bincat.sh)
elseif (NOT ENABLE_RESOURCE_EMBED)
message (STATUS "Compiling bincat for merging resource files...")
set (_catDir ${CMAKE_BINARY_DIR}/res)
execute_process (COMMAND ${CMAKE_COMMAND} -E make_directory ${_catDir})
execute_process (COMMAND ${CMAKE_COMMAND} ${CMAKE_SOURCE_DIR}/res -DCMAKE_BUILD_TYPE=MinSizeRel
WORKING_DIRECTORY ${_catDir}
)
execute_process (COMMAND ${CMAKE_COMMAND} --build . WORKING_DIRECTORY ${_catDir})
set (BINCAT_COMMAND ${_catDir}/bincat)
endif ()
function (embed_getname output fn)
get_filename_component (name ${fn} NAME_WE)
string (REPLACE "-" "" name ${name})
string (REPLACE "=" "" name ${name})
string (SUBSTRING ${name} 0 1 first)
string (TOUPPER ${first} first)
string (SUBSTRING ${name} 1 -1 remainder)
set (name "${first}${remainder}")
get_filename_component (ext ${fn} EXT)
if (ext STREQUAL .ttf)
set (resName "font")
elseif (ext STREQUAL .fontpack)
set (resName "fontpack")
elseif (ext STREQUAL .png)
set (resName "image")
else ()
set (resName "blob")
endif ()
set (resName "${resName}${name}_Embedded" PARENT_SCOPE)
endfunction (embed_getname)
function (embed_write path name fnSource fnHeader)
message (STATUS "${path}")
file (READ ${path} fileData HEX)
string (REGEX REPLACE "([0-9a-f][0-9a-f])" "0x\\1," cList ${fileData})
string (REGEX REPLACE
"(0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],0x[0-9a-f][0-9a-f],)"
"\\1\n " cList ${cList})
string (LENGTH ${fileData} len)
math (EXPR alen "${len} / 2")
set (src "static const uint8_t bytes_${name}_[] = {\n")
string (APPEND src " ${cList}\n")
string (APPEND src "};
static iBlockData data_${name}_ = {
.refCount = 2, .data = iConstCast(char *, bytes_${name}_), .size = ${alen}, .allocSize = ${alen}
};
const iBlock ${name} = { &data_${name}_ };
")
set (header "extern const iBlock ${name};\n")
# Output the results.
file (APPEND ${fnSource} "${src}")
file (APPEND ${fnHeader} "${header}")
endfunction (embed_write)
function (embed_make)
set (EMB_H ${CMAKE_CURRENT_BINARY_DIR}/embedded.h)
set (EMB_C ${CMAKE_CURRENT_BINARY_DIR}/embedded.c)
if (ENABLE_RESOURCE_EMBED)
set (needGen NO)
if (NOT EXISTS ${EMB_H} OR NOT EXISTS ${EMB_C})
set (needGen YES)
else ()
file (TIMESTAMP ${EMB_H} genTime %s)
foreach (resPath ${ARGV})
set (fn "${CMAKE_CURRENT_LIST_DIR}/${resPath}")
file (TIMESTAMP ${fn} resTime %s)
if (${resTime} GREATER ${genTime})
set (needGen YES)
endif ()
endforeach (resPath)
endif ()
else ()
set (needGen YES)
endif ()
if (needGen)
if (ENABLE_RESOURCE_EMBED)
# Compose a source file with the resource data in an array.
file (WRITE ${EMB_H} "#include <the_Foundation/block.h>\n")
file (WRITE ${EMB_C} "#include \"embedded.h\"\n")
foreach (fn ${ARGV})
embed_getname (resName ${fn})
embed_write (${fn} ${resName} ${EMB_C} ${EMB_H})
endforeach (fn)
else ()
# Collect resources in a single binary file.
set (EMB_BIN ${CMAKE_CURRENT_BINARY_DIR}/resources.lgr)
file (REMOVE ${EMB_BIN})
list (LENGTH ARGV fileCount)
execute_process (COMMAND ${BINCAT_COMMAND} ${EMB_BIN} ${ARGV}
WORKING_DIRECTORY ${CMAKE_SOURCE_DIR}
OUTPUT_VARIABLE fileSizes
)
set (offsets)
set (fpos 0)
foreach (fileSize ${fileSizes})
list (APPEND offsets "${fpos}")
math (EXPR fpos "${fpos} + ${fileSize}")
endforeach (fileSize)
file (WRITE ${EMB_H} "#include <the_Foundation/block.h>\n
#define iHaveLoadEmbed 1
iBool load_Embed(const char *path);\n\n")
file (WRITE ${EMB_C} [[
#include "embedded.h"
#include <the_Foundation/file.h>
#include <the_Foundation/fileinfo.h>
iDeclareType(EmbedChunk)
struct Impl_EmbedChunk {
size_t pos;
size_t size;
};
static const iEmbedChunk chunks_Embed_[] = {
]])
set (index 0)
foreach (fn ${ARGV})
list (GET fileSizes ${index} fileSize)
list (GET offsets ${index} fpos)
file (APPEND ${EMB_C} " { ${fpos}, ${fileSize} },\n")
math (EXPR index "${index} + 1")
endforeach (fn)
file (APPEND ${EMB_C} "};\n\n")
foreach (fn ${ARGV})
embed_getname (resName ${fn})
file (APPEND ${EMB_H} "extern iBlock ${resName};\n")
file (APPEND ${EMB_C} "iBlock ${resName};\n")
endforeach (fn)
file (APPEND ${EMB_C} "\nstatic iBlock *blocks_Embed_[] = {\n")
foreach (fn ${ARGV})
embed_getname (resName ${fn})
file (APPEND ${EMB_C} " &${resName},\n")
endforeach (fn)
file (APPEND ${EMB_C} [[
};
iBool load_Embed(const char *path) {
const size_t fileSize = (size_t) fileSizeCStr_FileInfo(path);
iFile *f = iClob(newCStr_File(path));
if (open_File(f, readOnly_FileMode)) {
iForIndices(i, blocks_Embed_) {
const iEmbedChunk *chunk = &chunks_Embed_[i];
iBlock *data = blocks_Embed_[i];
if (chunk->pos + chunk->size > fileSize) {
return iFalse;
}
init_Block(data, chunk->size);
fill_Block(data, 0);
seek_File(f, chunk->pos);
readData_File(f, chunk->size, data_Block(data));
}
return iTrue;
}
return iFalse;
}
]])
endif ()
endif ()
endfunction (embed_make)
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