package/ci: enable SwiftShader tests on Travis.

doc/changelog-integration.dox

@@ -46,6 +46,11 @@ namespace Magnum {
 -   If both a CMake-based ImGui installation is found and `IMGUI_DIR` is set
     when building, `FindImGui.cmake` prefers the location given by `IMGUI_DIR`
 
+@subsection changelog-integration-latest-buildsystem Build system
+
+-   ES 2.0 and ES 3.0 subset of tests requiring GL context is now run on Travis
+    CI using SwiftShader for better code coverage
+
 @subsection changelog-integration-latest-bugfixes Bug fixes
 
 -   The @ref ImGuiIntegration::image() widget was flipping the texture

package/ci/travis-desktop-gles.sh

@@ -24,9 +24,12 @@ cmake .. \
     -DCMAKE_INSTALL_PREFIX=$HOME/deps \
     -DCMAKE_INSTALL_RPATH=$HOME/deps/lib \
     -DCMAKE_BUILD_TYPE=Debug \
+    -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=$TARGET_GLES2 \
-    -DTARGET_DESKTOP_GLES=ON \
     -DWITH_AUDIO=OFF \
     -DWITH_DEBUGTOOLS=OFF \
     -DWITH_MESHTOOLS=OFF \
@@ -52,6 +55,10 @@ cmake .. \
     -DCMAKE_INSTALL_RPATH=$HOME/deps/lib \
     -DIMGUI_DIR=$HOME/imgui \
     -DCMAKE_BUILD_TYPE=Debug \
+    -DEGL_LIBRARY=$HOME/swiftshader/libEGL.so \
+    -DOPENGLES2_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DOPENGLES3_LIBRARY=$HOME/swiftshader/libGLESv2.so \
+    -DCMAKE_INSTALL_RPATH=$HOME/swiftshader \
     -DWITH_BULLET=ON \
     -DWITH_DART=OFF \
     -DWITH_GLM=ON \
@@ -62,4 +69,5 @@ cmake .. \
     -G Ninja
 # Otherwise the job gets killed (probably because using too much memory)
 ninja -j4
-CORRADE_TEST_COLOR=ON ctest -V -E GLTest
+CORRADE_TEST_COLOR=ON ctest -V
+if [ "$TARGET_GLES2" == "ON" ]; then CORRADE_TEST_COLOR=ON MAGNUM_DISABLE_EXTENSIONS="OES_vertex_array_object" ctest -V -R GLTest; fi

package/ci/travis.yml

@@ -195,6 +195,10 @@ install:
 # ImGui
 - if [ ! -e "$HOME/imgui/imgui.h" ]; then cd $HOME ; wget -nc --no-check-certificate -O imgui.tar.gz https://github.com/ocornut/imgui/archive/v1.67.tar.gz && mkdir -p imgui && cd imgui && tar --strip-components=1 -xzf ../imgui.tar.gz && cd $TRAVIS_BUILD_DIR; 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 $TRAVIS_BUILD_DIR ; fi
+
 script:
 - if [ "$TRAVIS_OS_NAME" == "linux" ] && ( [ "$TARGET" == "desktop" ] || [ "$TARGET" == "desktop-sanitizers" ] ); then ./package/ci/travis-desktop.sh; fi
 - if [ "$TRAVIS_OS_NAME" == "linux" ] && [ "$TARGET" == "desktop-gles" ]; then ./package/ci/travis-desktop-gles.sh; fi