SFML/cmake/Modules/FindXCB.cmake
Lukas W 135c1716e8 Replaced Xlib by XCB implementation.
* Added FindXCB.cmake script
* Added AutoPointer wrapper for automatically free'ing pointers
* Huge commit: Ported linux implementation of sfml-window to xcb
* Xcb is now used for window creation, event loop etc
* As GLX is linked to Xlib, that part of the implementation
  still uses Xlib.
* Also, some keyboard related (such as XLookupString) stuff
  is still Xlib, as xcb does not have it (yet?).
* Replaced some enums with the xcb equivalents
2014-12-29 08:59:20 +01:00

98 lines
3.4 KiB
CMake

# Try to find libxcb
#
#
# Once done this will define:
# LIBXCB_FOUND - True if xcb was found
# LIBXCB_INCLUDE_DIRS - Directories containing the headers
# LIBXCB_LIBRARIES - List of libraries to link to
#
# Also for each requested component:
# LIBXCB_${UPPER_COMPONENT_NAME}_FOUND
# LIBXCB_${UPPER_COMPONENT_NAME}_INCLUDE_DIRS
# LIBXCB_${UPPER_COMPONENT_NAME}_LIBRARIES
include(FindPackageHandleStandardArgs)
IF(NOT WIN32)
IF(LIBXCB_LIBRARIES AND LIBXCB_INCLUDE_DIR)
set(XCB_FIND_QUIETLY TRUE)
ENDIF()
# Find xcb
FIND_PATH(LIBXCB_INCLUDE_DIR xcb/xcb.h)
FIND_LIBRARY(LIBXCB_LIBRARY NAMES xcb libxcb)
# Add xcb info to LIBXCB_LIBRARIES and LIBXCB_INCLUDE_DIRS
SET(LIBXCB_LIBRARIES ${LIBXCB_LIBRARY})
SET(LIBXCB_INCLUDE_DIRS ${LIBXCB_INCLUDE_DIR})
find_package_handle_standard_args(LIBXCB DEFAULT_MSG
LIBXCB_LIBRARY LIBXCB_INCLUDE_DIR)
mark_as_advanced(LIBXCB_LIBRARY LIBXCB_INCLUDE_DIR)
# Check whether we should search for XLIB_XCB
set(FIND_XLIB_XCB FALSE)
FOREACH(XCB_COMPONENT ${XCB_FIND_COMPONENTS})
# Generate upper string of the component name
string(TOUPPER ${XCB_COMPONENT} XCB_COMPONENT_UPPER)
IF(${XCB_COMPONENT_UPPER} MATCHES "XLIB_XCB")
set(FIND_XLIB_XCB TRUE)
ELSE()
# XCB_COMPONENTS is generated to be a copy of XCB_FIND_COMPONENTS
# without XLIB_XCB (for later component search)
set(XCB_COMPONENTS ${XCB_COMPONENTS} ${XCB_COMPONENT})
ENDIF()
ENDFOREACH()
# Find XLIB_XCB if requested
IF(FIND_XLIB_XCB)
FIND_PATH(XLIB_XCB_INCLUDE_DIR X11/Xlib-xcb.h)
FIND_LIBRARY(XLIB_XCB_LIBRARY NAMES X11-xcb libX11-xcb)
SET(XLIB_XCB_LIBRARIES ${XLIB_XCB_LIBRARY})
SET(XLIB_XCB_INCLUDE_DIRS ${XLIB_XCB_INCLUDE_DIR})
find_package_handle_standard_args(XLIB_XCB DEFAULT_MSG
XLIB_XCB_LIBRARY LIBXCB_INCLUDE_DIR)
mark_as_advanced(XLIB_XCB_LIBRARY XLIB_XCB_INCLUDE_DIR)
# Add xlib_xcb info to LIBXCB_LIBRARIES and LIBXCB_INCLUDE_DIRS
set(LIBXCB_LIBRARIES ${LIBXCB_LIBRARIES} ${XLIB_XCB_LIBRARIES})
set(LIBXCB_INCLUDE_DIRS ${LIBXCB_INCLUDE_DIRS} ${XLIB_XCB_INCLUDE_DIR})
if(NOT XLIB_XCB_FOUND)
message(FATAL_ERROR "XlibXcb library not found")
endif()
ELSE()
# Add component name to the component list
set(${XCB_COMPONENTS} ${XCB_FIND_COMPONENTS})
ENDIF()
# Loop through requested xcb components (does not contain xlib_xcb)
FOREACH(XCB_COMPONENT ${XCB_COMPONENTS})
# Generate lower and upper string of the component name
string(TOLOWER ${XCB_COMPONENT} XCB_COMPONENT_LOWER)
string(TOUPPER ${XCB_COMPONENT} XCB_COMPONENT_UPPER)
# Find the specific component
FIND_LIBRARY(LIBXCB_${XCB_COMPONENT_UPPER}_LIBRARY
NAMES libxcb-${XCB_COMPONENT_LOWER} xcb-${XCB_COMPONENT_LOWER})
find_package_handle_standard_args(LIBXCB_${XCB_COMPONENT_UPPER} DEFAULT_MSG
LIBXCB_${XCB_COMPONENT_UPPER}_LIBRARY LIBXCB_INCLUDE_DIR)
mark_as_advanced(LIBXCB_${XCB_COMPONENT_UPPER}_LIBRARY)
# Append the component's library path to LIBXCB_LIBRARIES
set(LIBXCB_LIBRARIES ${LIBXCB_LIBRARIES} ${LIBXCB_${XCB_COMPONENT_UPPER}_LIBRARY})
if(NOT LIBXCB_${XCB_COMPONENT_UPPER}_FOUND)
message(FATAL_ERROR "xcb-${XCB_COMPONENT_LOWER} not found")
endif()
ENDFOREACH()
endif()