package/ci: test also GL stuff via SwiftShader.

modules/FindOpenGLES2.cmake

@@ -0,0 +1,86 @@
+#.rst:
+# Find OpenGL ES 2
+# ----------------
+#
+# Finds the OpenGL ES 2 library. This module defines:
+#
+#  OpenGLES2_FOUND          - True if OpenGL ES 2 library is found
+#  OpenGLES2::OpenGLES2     - OpenGL ES 2 imported target
+#
+# Additionally these variables are defined for internal usage:
+#
+#  OPENGLES2_LIBRARY        - OpenGL ES 2 library
+#  OPENGLES2_INCLUDE_DIR    - Include dir
+#
+
+#
+#   This file is part of Magnum.
+#
+#   Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
+#             Vladimír Vondruš <mosra@centrum.cz>
+#
+#   Permission is hereby granted, free of charge, to any person obtaining a
+#   copy of this software and associated documentation files (the "Software"),
+#   to deal in the Software without restriction, including without limitation
+#   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#   and/or sell copies of the Software, and to permit persons to whom the
+#   Software is furnished to do so, subject to the following conditions:
+#
+#   The above copyright notice and this permission notice shall be included
+#   in all copies or substantial portions of the Software.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#   DEALINGS IN THE SOFTWARE.
+#
+
+# In Emscripten OpenGL ES 2 is linked automatically, thus no need to find the
+# library.
+if(NOT CORRADE_TARGET_EMSCRIPTEN)
+    find_library(OPENGLES2_LIBRARY NAMES
+        GLESv2
+
+        # ANGLE (CMake doesn't search for lib prefix on Windows)
+        libGLESv2
+
+        # iOS
+        OpenGLES)
+    set(OPENGLES2_LIBRARY_NEEDED OPENGLES2_LIBRARY)
+endif()
+
+# Include dir
+find_path(OPENGLES2_INCLUDE_DIR NAMES
+    GLES2/gl2.h
+
+    # iOS
+    ES2/gl.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(OpenGLES2 DEFAULT_MSG
+    ${OPENGLES2_LIBRARY_NEEDED}
+    OPENGLES2_INCLUDE_DIR)
+
+if(NOT TARGET OpenGLES2::OpenGLES2)
+    if(OPENGLES2_LIBRARY_NEEDED)
+        # Work around BUGGY framework support on macOS
+        # http://public.kitware.com/pipermail/cmake/2016-April/063179.html
+        if(CORRADE_TARGET_APPLE AND ${OPENGLES2_LIBRARY} MATCHES "\\.framework$")
+            add_library(OpenGLES2::OpenGLES2 INTERFACE IMPORTED)
+            set_property(TARGET OpenGLES2::OpenGLES2 APPEND PROPERTY
+                INTERFACE_LINK_LIBRARIES ${OPENGLES2_LIBRARY})
+        else()
+            add_library(OpenGLES2::OpenGLES2 UNKNOWN IMPORTED)
+            set_property(TARGET OpenGLES2::OpenGLES2 PROPERTY
+                IMPORTED_LOCATION ${OPENGLES2_LIBRARY})
+        endif()
+    else()
+        add_library(OpenGLES2::OpenGLES2 INTERFACE IMPORTED)
+    endif()
+
+    set_property(TARGET OpenGLES2::OpenGLES2 PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES ${OPENGLES2_INCLUDE_DIR})
+endif()

modules/FindOpenGLES3.cmake

@@ -0,0 +1,100 @@
+#.rst:
+# Find OpenGL ES 3
+# ----------------
+#
+# Finds the OpenGL ES 3 library. This module defines:
+#
+#  OpenGLES3_FOUND          - True if OpenGL ES 3 library is found
+#  OpenGLES3::OpenGLES3     - OpenGL ES 3 imported target
+#
+# Additionally these variables are defined for internal usage:
+#
+#  OPENGLES3_LIBRARY        - OpenGL ES 3 library
+#  OPENGLES3_INCLUDE_DIR    - Include dir
+#
+
+#
+#   This file is part of Magnum.
+#
+#   Copyright © 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019
+#             Vladimír Vondruš <mosra@centrum.cz>
+#
+#   Permission is hereby granted, free of charge, to any person obtaining a
+#   copy of this software and associated documentation files (the "Software"),
+#   to deal in the Software without restriction, including without limitation
+#   the rights to use, copy, modify, merge, publish, distribute, sublicense,
+#   and/or sell copies of the Software, and to permit persons to whom the
+#   Software is furnished to do so, subject to the following conditions:
+#
+#   The above copyright notice and this permission notice shall be included
+#   in all copies or substantial portions of the Software.
+#
+#   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+#   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+#   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+#   THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+#   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+#   FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+#   DEALINGS IN THE SOFTWARE.
+#
+
+# In Emscripten OpenGL ES 3 is linked automatically, thus no need to find the
+# library.
+if(NOT CORRADE_TARGET_EMSCRIPTEN)
+    find_library(OPENGLES3_LIBRARY NAMES
+        GLESv3
+
+        # On some platforms (e.g. desktop emulation with Mesa or NVidia) ES3
+        # support is provided in ES2 lib
+        GLESv2
+
+        # ANGLE (CMake doesn't search for lib prefix on Windows)
+        libGLESv2
+
+        # iOS
+        OpenGLES)
+    set(OPENGLES3_LIBRARY_NEEDED OPENGLES3_LIBRARY)
+endif()
+
+# Include dir
+find_path(OPENGLES3_INCLUDE_DIR NAMES
+    GLES3/gl3.h
+
+    # iOS
+    ES3/gl.h)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args("OpenGLES3" DEFAULT_MSG
+    ${OPENGLES3_LIBRARY_NEEDED}
+    OPENGLES3_INCLUDE_DIR)
+
+if(NOT TARGET OpenGLES3::OpenGLES3)
+    if(OPENGLES3_LIBRARY_NEEDED)
+        # Work around BUGGY framework support on macOS
+        # http://public.kitware.com/pipermail/cmake/2016-April/063179.html
+        if(CORRADE_TARGET_APPLE AND ${OPENGLES3_LIBRARY} MATCHES "\\.framework$")
+            add_library(OpenGLES3::OpenGLES3 INTERFACE IMPORTED)
+            set_property(TARGET OpenGLES3::OpenGLES3 APPEND PROPERTY
+                INTERFACE_LINK_LIBRARIES ${OPENGLES3_LIBRARY})
+        else()
+            add_library(OpenGLES3::OpenGLES3 UNKNOWN IMPORTED)
+            set_property(TARGET OpenGLES3::OpenGLES3 PROPERTY
+                IMPORTED_LOCATION ${OPENGLES3_LIBRARY})
+        endif()
+    else()
+        add_library(OpenGLES3::OpenGLES3 INTERFACE IMPORTED)
+    endif()
+
+    set_property(TARGET OpenGLES3::OpenGLES3 PROPERTY
+        INTERFACE_INCLUDE_DIRECTORIES ${OPENGLES3_INCLUDE_DIR})
+
+    # Emscripten needs a special flag to use WebGL 2. CMake 3.13 allows to set
+    # this via INTERFACE_LINK_OPTIONS, for older versions we modify the global
+    # CMAKE_EXE_LINKER_FLAGS inside FindMagnum.cmake.
+    if(CORRADE_TARGET_EMSCRIPTEN AND NOT CMAKE_VERSION VERSION_LESS 3.13)
+        # I could probably use target_link_options() here, but let's be
+        # consistent with the rest
+        set_property(TARGET OpenGLES3::OpenGLES3 APPEND PROPERTY
+            INTERFACE_LINK_OPTIONS "SHELL:-s USE_WEBGL2=1")
+    endif()
+endif()

package/ci/travis-desktop-gles.sh

@@ -0,0 +1,76 @@
+#!/bin/bash
+set -ev
+
+# Corrade
+git clone --depth 1 git://github.com/mosra/corrade.git
+cd corrade
+mkdir build && cd build
+cmake .. \
+    -DCMAKE_INSTALL_PREFIX=$HOME/deps \
+    -DCMAKE_INSTALL_RPATH=$HOME/deps/lib \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DBUILD_DEPRECATED=$BUILD_DEPRECATED \
+    -DWITH_INTERCONNECT=OFF \
+    -DWITH_PLUGINMANAGER=OFF \
+    -DWITH_TESTSUITE=OFF \
+    -G Ninja
+ninja install
+cd ../..
+
+# Magnum
+git clone --depth 1 git://github.com/mosra/magnum.git
+cd magnum
+mkdir build && cd build
+cmake .. \
+    -DCMAKE_INSTALL_PREFIX=$HOME/deps \
+    -DCMAKE_INSTALL_RPATH=$HOME/deps/lib \
+    -DCMAKE_BUILD_TYPE=Release \
+    -DEGL_LIBRARY=$HOME/swiftshader/libEGL.so \
+    -DOPENGLES2_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DOPENGLES3_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DCMAKE_INSTALL_RPATH=$HOME/swiftshader \
+    -DTARGET_GLES=ON \
+    -DTARGET_GLES2=$TARGET_GLES2 \
+    -DWITH_AUDIO=OFF \
+    -DWITH_DEBUGTOOLS=OFF \
+    -DWITH_GL=ON \
+    -DWITH_MESHTOOLS=OFF \
+    -DWITH_PRIMITIVES=OFF \
+    -DWITH_SCENEGRAPH=ON \
+    -DWITH_SHADERS=ON \
+    -DWITH_TEXT=OFF \
+    -DWITH_TEXTURETOOLS=OFF \
+    -DWITH_TRADE=OFF \
+    -DWITH_VK=OFF \
+    -DWITH_WINDOWLESSEGLAPPLICATION=ON \
+    -DBUILD_DEPRECATED=OFF \
+    -G Ninja
+ninja install
+cd ../..
+
+# Build the thing
+mkdir build && cd build
+cmake .. \
+    -DCMAKE_CXX_FLAGS="--coverage" \
+    -DCMAKE_INSTALL_PREFIX=$HOME/deps \
+    -DCMAKE_BUILD_TYPE=Debug \
+    -DCMAKE_PREFIX_PATH=$HOME/pybind11 \
+    -DEGL_LIBRARY=$HOME/swiftshader/libEGL.so \
+    -DOPENGLES2_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DOPENGLES3_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DCMAKE_INSTALL_RPATH=$HOME/swiftshader \
+    -DPYBIND11_PYTHON_VERSION=3.6 \
+    -DWITH_PYTHON=ON \
+    -G Ninja
+ninja
+
+# Verify the setuptools install
+cd src/python
+python3 setup.py install --root="$TRAVIS_BUILD_DIR/install" --prefix=/usr
+
+# Run tests & gather coverage
+cd ../../../src/python/corrade
+coverage run -m unittest -v && cp .coverage ../.coverage.corrade
+
+cd ../magnum
+coverage run -m unittest -v && cp .coverage ../.coverage.magnum

package/ci/travis.yml

@@ -15,12 +15,50 @@ matrix:
     compiler: gcc
     env:
     - JOBID=linux-gl
+    - TARGET=desktop
     - LCOV_EXTRA_OPTS="--gcov-tool /usr/bin/gcov-4.8"
+  - language:  python
+    python: 3.6
+    os: linux
+    dist: xenial
+    compiler: gcc
+    env:
+    - JOBID=linux-gles2
+    - TARGET=desktop-gles
+    - TARGET_GLES2=ON
+    - CMAKE_CXX_FLAGS="--coverage"
+    - LCOV_EXTRA_OPTS="--gcov-tool /usr/bin/gcov-4.8"
+    addons:
+      apt:
+        packages:
+        - g++-4.8
+        - ninja-build
+        - lcov
+        - libgles2-mesa-dev
+  - language:  python
+    python: 3.6
+    os: linux
+    dist: xenial
+    compiler: gcc
+    env:
+    - JOBID=linux-gles3
+    - TARGET=desktop-gles
+    - TARGET_GLES2=OFF
+    - CMAKE_CXX_FLAGS="--coverage"
+    - LCOV_EXTRA_OPTS="--gcov-tool /usr/bin/gcov-4.8"
+    addons:
+      apt:
+        packages:
+        - g++-4.8
+        - ninja-build
+        - lcov
+        - libgles2-mesa-dev
   - language: cpp
     os: osx
     compiler: clang
     env:
     - JOBID=macos-gl
+    - TARGET=desktop
 
 notifications:
   webhooks:
@@ -32,6 +70,7 @@ notifications:
 
 cache:
   directories:
+  - $HOME/swiftshader
   - $HOME/cmake
   - $HOME/pybind11
 
@@ -53,11 +92,16 @@ install:
 - if [ "$TRAVIS_OS_NAME" == "linux" ] && [ ! -e "$HOME/pybind11/bin" ]; then $TRAVIS_BUILD_DIR/package/ci/setup-pybind11.sh; fi
 - if [ "$TRAVIS_OS_NAME" == "osx" ]; then HOMEBREW_NO_AUTO_UPDATE=1 brew install pybind11; fi
 
+# SwiftShader on Linux (cached). Taken from Chromium snapshot 587878
+# (swiftshader-bin Arch package).
+- if [ "$TRAVIS_OS_NAME" == "linux" ] && [ "$TARGET" == "desktop-gles" ] && [ ! -e "$HOME/swiftshader/libEGL.so" ]; then cd $HOME ; wget https://ci.magnum.graphics/swiftshader-chromium-587878.tar.gz && mkdir -p swiftshader && cd swiftshader && tar -xzf ../swiftshader-chromium-587878.tar.gz && cd $TRAVIS_BUILD_DIR ; fi
+
 # lcov on macOS
 - if [ "$TRAVIS_OS_NAME" == "osx" ]; then HOMEBREW_NO_AUTO_UPDATE=1 brew install lcov; fi
 
 script:
-- if [ "$TRAVIS_OS_NAME" == "linux" ] || [ "$TRAVIS_OS_NAME" == "osx" ]; then ./package/ci/travis-desktop.sh; fi
+- if [ "$TARGET" == "desktop" ] && ( [ "$TRAVIS_OS_NAME" == "linux" ] || [ "$TRAVIS_OS_NAME" == "osx" ] ); then ./package/ci/travis-desktop.sh; fi
+- if [ "$TARGET" == "desktop-gles" ] && ( [ "$TRAVIS_OS_NAME" == "linux" ] || [ "$TRAVIS_OS_NAME" == "osx" ] ); then ./package/ci/travis-desktop-gles.sh; fi
 # Travis somehow is not able to gather all output, try to force it using this
 - sync