Change Android platform for when ANGLE is default
Allow adb commands to select ANGLE vs the legacy GLES driver
regardless of which driver is the system (default) driver, and to
select between different versions of ANGLE if multiple versions are
installed (e.g. the built-in system driver vs. an updated APK).
Test: logcat
Bug: 224558229
Change-Id: I83e59002b67181fda4da6070b80ffa595bc25ac4
diff --git a/opengl/libs/EGL/Loader.cpp b/opengl/libs/EGL/Loader.cpp
index 76fd7f0..5007978 100644
--- a/opengl/libs/EGL/Loader.cpp
+++ b/opengl/libs/EGL/Loader.cpp
@@ -216,8 +216,13 @@
return cnx->dso;
}
- // Firstly, try to load ANGLE driver.
- driver_t* hnd = attempt_to_load_angle(cnx);
+ // Firstly, try to load ANGLE driver, unless we know that we shouldn't.
+ bool forceLegacyDriver = android::GraphicsEnv::getInstance().forceLegacyDriver();
+ driver_t* hnd = nullptr;
+ if (!forceLegacyDriver) {
+ hnd = attempt_to_load_angle(cnx);
+ }
+
if (!hnd) {
// Secondly, try to load from driver apk.
hnd = attempt_to_load_updated_driver(cnx);
@@ -230,21 +235,29 @@
LOG_ALWAYS_FATAL("couldn't find an OpenGL ES implementation from %s",
android::GraphicsEnv::getInstance().getDriverPath().c_str());
}
- // Finally, try to load system driver, start by searching for the library name appended by
- // the system properties of the GLES userspace driver in both locations.
- // i.e.:
- // libGLES_${prop}.so, or:
- // libEGL_${prop}.so, libGLESv1_CM_${prop}.so, libGLESv2_${prop}.so
- for (auto key : HAL_SUBNAME_KEY_PROPERTIES) {
- auto prop = base::GetProperty(key, "");
- if (prop.empty()) {
- continue;
- }
- hnd = attempt_to_load_system_driver(cnx, prop.c_str(), true);
- if (hnd) {
- break;
- } else if (strcmp(key, DRIVER_SUFFIX_PROPERTY) == 0) {
- failToLoadFromDriverSuffixProperty = true;
+ // Finally, try to load system driver. If ANGLE is the system driver
+ // (i.e. we are forcing the legacy system driver instead of ANGLE), use
+ // the driver suffix that was passed down from above.
+ if (forceLegacyDriver) {
+ std::string suffix = android::GraphicsEnv::getInstance().getLegacySuffix();
+ hnd = attempt_to_load_system_driver(cnx, suffix.c_str(), true);
+ } else {
+ // Start by searching for the library name appended by the system
+ // properties of the GLES userspace driver in both locations.
+ // i.e.:
+ // libGLES_${prop}.so, or:
+ // libEGL_${prop}.so, libGLESv1_CM_${prop}.so, libGLESv2_${prop}.so
+ for (auto key : HAL_SUBNAME_KEY_PROPERTIES) {
+ auto prop = base::GetProperty(key, "");
+ if (prop.empty()) {
+ continue;
+ }
+ hnd = attempt_to_load_system_driver(cnx, prop.c_str(), true);
+ if (hnd) {
+ break;
+ } else if (strcmp(key, DRIVER_SUFFIX_PROPERTY) == 0) {
+ failToLoadFromDriverSuffixProperty = true;
+ }
}
}
}