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attempt to build web version out of emscripten legacy gl wrapper

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veclavtalica
2025-02-21 18:07:04 +03:00
parent 85e47dd677
commit dd4fc45be3
10 changed files with 123 additions and 68 deletions
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29
CMakeLists.txt
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@@ -30,15 +30,15 @@ option(TWN_USE_AMALGAM "Enable use of twn_amalgam.c as a single compilation unit
option(TWN_FEATURE_DYNLIB_GAME "Enable dynamic library loading support" ON)
set(TWN_OUT_DIR ${CMAKE_SOURCE_DIR} CACHE PATH "Artifact destination")
# todo: figure out how to compile for dynamic linking instead
if(EMSCRIPTEN)
# todo: figure out how to compile for dynamic linking instead?
if(HAIKU OR EMSCRIPTEN)
if(TWN_FEATURE_DYNLIB_GAME)
message(WARNING "TWN_FEATURE_DYNLIB_GAME is set, but not supported - it is turned off")
set(TWN_FEATURE_DYNLIB_GAME OFF CACHE INTERNAL "")
endif()
endif()
if(HAIKU)
if(HAIKU OR EMSCRIPTEN)
if(TWN_SANITIZE)
message(WARNING "TWN_SANITIZE is set, but not supported - it is turned off")
set(TWN_SANITIZE OFF CACHE INTERNAL "")
@@ -64,11 +64,7 @@ set(PHYSFS_ARCHIVE_7Z OFF CACHE INTERNAL "")
add_subdirectory(third-party/physfs ${CMAKE_CURRENT_BINARY_DIR}/third-party/physfs SYSTEM)
add_subdirectory(third-party/libxm ${CMAKE_CURRENT_BINARY_DIR}/third-party/libxm SYSTEM)
if(EMSCRIPTEN)
set(TWN_RENDERING_API WEBGL1)
else()
set(TWN_RENDERING_API OPENGL_15)
endif()
set(TWN_RENDERING_API OPENGL_15)
if(TWN_RENDERING_API MATCHES OPENGL_15)
set(SYSTEM_SOURCE_FILES ${SYSTEM_SOURCE_FILES}
@@ -140,7 +136,7 @@ set_target_properties(${TWN_TARGET} PROPERTIES
# precompile commonly used not-so-small headers
target_precompile_headers(${TWN_TARGET} PRIVATE
$<$<NOT:$<BOOL:${EMSCRIPTEN}>>:third-party/glad/include/glad/glad.h>
${SDL2_INCLUDE_DIR}/SDL.h
$<$<NOT:$<BOOL:${EMSCRIPTEN}>>:${SDL2_INCLUDE_DIR}/SDL.h>
third-party/physfs/src/physfs.h)
@@ -170,6 +166,13 @@ function(give_options_without_warnings target)
$<$<BOOL:${TWN_SANITIZE}>:-fstack-protector-all -fsanitize=undefined -fsanitize=address>
$<$<BOOL:${EMSCRIPTEN}>:-gsource-map>)
set(LINK_FLAGS
-Bsymbolic-functions
$<$<BOOL:${EMSCRIPTEN}>:-sLEGACY_GL_EMULATION -sGL_FFP_ONLY -sGL_UNSAFE_OPTS>
$<$<NOT:$<BOOL:${EMSCRIPTEN}>>:-Wl,--as-needed>
$<$<BOOL:${LINUX}>:-Wl,--hash-style=gnu>)
set(LINK_FLAGS_RELEASE
$<$<STREQUAL:${CMAKE_C_COMPILER_ID},Clang>:-Wl,--strip-all>
${BUILD_FLAGS_RELEASE})
@@ -194,12 +197,10 @@ function(give_options_without_warnings target)
target_link_options(${target} PUBLIC
${BUILD_FLAGS}
${LINK_FLAGS}
# -Wl,--no-undefined # TODO: use later for implementing no-libc
$<$<CONFIG:Release>:${LINK_FLAGS_RELEASE}>
$<$<CONFIG:Debug>:${BUILD_FLAGS_DEBUG}>
-Bsymbolic-functions
-Wl,--as-needed
$<$<BOOL:${LINUX}>:-Wl,--hash-style=gnu>)
$<$<CONFIG:Debug>:${BUILD_FLAGS_DEBUG}>)
get_target_property(target_type ${target} TYPE)
if (target_type MATCHES SHARED_LIBRARY)
@@ -274,7 +275,7 @@ endfunction()
function(link_deps target)
target_link_libraries(${target} PUBLIC
$<$<NOT:$<BOOL:${EMSCRIPTEN}>>:SDL2::SDL2>
$<$<NOT:$<BOOL:${TWN_FEATURE_DYNLIB_GAME}>>:SDL2::SDL2main>
$<$<NOT:$<OR:$<BOOL:${TWN_FEATURE_DYNLIB_GAME}>,$<BOOL:${EMSCRIPTEN}>>>:SDL2::SDL2main>
physfs-static
xms)
target_include_directories(${target} PUBLIC ${SDL2_INCLUDE_DIRS})