1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
|
#.rst:
# FindEGL
# -------
#
# Try to find EGL.
#
# This will define the following variables:
#
# ``EGL_FOUND``
# True if (the requested version of) EGL is available
# ``EGL_VERSION``
# The version of EGL; note that this is the API version defined in the
# headers, rather than the version of the implementation (eg: Mesa)
# ``EGL_LIBRARIES``
# This can be passed to target_link_libraries() instead of the ``EGL::EGL``
# target
# ``EGL_INCLUDE_DIRS``
# This should be passed to target_include_directories() if the target is not
# used for linking
# ``EGL_DEFINITIONS``
# This should be passed to target_compile_options() if the target is not
# used for linking
#
# If ``EGL_FOUND`` is TRUE, it will also define the following imported target:
#
# ``EGL::EGL``
# The EGL library
#
# In general we recommend using the imported target, as it is easier to use.
# Bear in mind, however, that if the target is in the link interface of an
# exported library, it must be made available by the package config file.
#
# Since pre-1.0.0.
#=============================================================================
# Copyright 2014 Alex Merry <alex.merry@kde.org>
# Copyright 2014 Martin Gräßlin <mgraesslin@kde.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
# 3. The name of the author may not be used to endorse or promote products
# derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#=============================================================================
include(${CMAKE_CURRENT_LIST_DIR}/ECMFindModuleHelpersStub.cmake)
include(CheckCXXSourceCompiles)
include(CMakePushCheckState)
ecm_find_package_version_check(EGL)
# Use pkg-config to get the directories and then use these values
# in the FIND_PATH() and FIND_LIBRARY() calls
find_package(PkgConfig)
pkg_check_modules(PKG_EGL QUIET egl)
set(EGL_DEFINITIONS ${PKG_EGL_CFLAGS_OTHER})
find_path(EGL_INCLUDE_DIR
NAMES
EGL/egl.h
HINTS
${PKG_EGL_INCLUDE_DIRS}
)
find_library(EGL_LIBRARY
NAMES
EGL
HINTS
${PKG_EGL_LIBRARY_DIRS}
)
# NB: We do *not* use the version information from pkg-config, as that
# is the implementation version (eg: the Mesa version)
if(EGL_INCLUDE_DIR)
# egl.h has defines of the form EGL_VERSION_x_y for each supported
# version; so the header for EGL 1.1 will define EGL_VERSION_1_0 and
# EGL_VERSION_1_1. Finding the highest supported version involves
# finding all these defines and selecting the highest numbered.
file(READ "${EGL_INCLUDE_DIR}/EGL/egl.h" _EGL_header_contents)
string(REGEX MATCHALL
"[ \t]EGL_VERSION_[0-9_]+"
_EGL_version_lines
"${_EGL_header_contents}"
)
unset(_EGL_header_contents)
foreach(_EGL_version_line ${_EGL_version_lines})
string(REGEX REPLACE
"[ \t]EGL_VERSION_([0-9_]+)"
"\\1"
_version_candidate
"${_EGL_version_line}"
)
string(REPLACE "_" "." _version_candidate "${_version_candidate}")
if(NOT DEFINED EGL_VERSION OR EGL_VERSION VERSION_LESS _version_candidate)
set(EGL_VERSION "${_version_candidate}")
endif()
endforeach()
unset(_EGL_version_lines)
endif()
cmake_push_check_state(RESET)
list(APPEND CMAKE_REQUIRED_LIBRARIES "${EGL_LIBRARY}")
list(APPEND CMAKE_REQUIRED_INCLUDES "${EGL_INCLUDE_DIR}")
check_cxx_source_compiles("
#include <EGL/egl.h>
int main(int argc, char *argv[]) {
EGLint x = 0; EGLDisplay dpy = 0; EGLContext ctx = 0;
eglDestroyContext(dpy, ctx);
}" HAVE_EGL)
cmake_pop_check_state()
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(EGL
FOUND_VAR
EGL_FOUND
REQUIRED_VARS
EGL_LIBRARY
EGL_INCLUDE_DIR
HAVE_EGL
VERSION_VAR
EGL_VERSION
)
if(EGL_FOUND AND NOT TARGET EGL::EGL)
add_library(EGL::EGL UNKNOWN IMPORTED)
set_target_properties(EGL::EGL PROPERTIES
IMPORTED_LOCATION "${EGL_LIBRARY}"
INTERFACE_COMPILE_OPTIONS "${EGL_DEFINITIONS}"
INTERFACE_INCLUDE_DIRECTORIES "${EGL_INCLUDE_DIR}"
)
endif()
mark_as_advanced(EGL_LIBRARY EGL_INCLUDE_DIR HAVE_EGL)
# compatibility variables
set(EGL_LIBRARIES ${EGL_LIBRARY})
set(EGL_INCLUDE_DIRS ${EGL_INCLUDE_DIR})
set(EGL_VERSION_STRING ${EGL_VERSION})
include(FeatureSummary)
set_package_properties(EGL PROPERTIES
URL "https://www.khronos.org/egl/"
DESCRIPTION "A platform-agnostic mechanism for creating rendering surfaces for use with other graphics libraries, such as OpenGL|ES and OpenVG."
)
|
