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[android-plugin, tools] (P12): MobileGLDisplayActivity - the on-screen display server in :mglwin (software window, fullscreen SurfaceView, aspect-fit geometry, env applied before the library loads), one shared server environment with MobileGLServerService, and one server at a time (the Activity stops the service, the service kills :mglwin)

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swung0x48
2026-09-24 00:20:11 -04:00
parent 02801c2acb
commit 3726b1f7e5
6 changed files with 640 additions and 26 deletions
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tools/trace_replay/ServerEnvironmentTest.java
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package top.mobilegl.plugin;
import java.util.HashMap;
import java.util.LinkedHashMap;
import java.util.Map;
/**
* Host-side checks for ServerEnvironment: the server role's environment and the display's
* aspect-fit, shared by MobileGLServerService (the offscreen supervisor's exec environment) and
* MobileGLDisplayActivity (the on-screen display server's own process, P12 D7).
*
* <p>On a device a defect here reads as "the knob had no effect" or "the server refused to start"
* (a scrubbed key left in: exit 65), so it is exercised here, by tools/trace_replay/
* test_android_lifecycle.py with plain javac. Assert-free for the same reason as
* SpawnServerPathTest: -ea is off by default, and a check compiled away checks nothing.
*/
public final class ServerEnvironmentTest {
private static int failures = 0;
private static void expect(String what, Object actual, Object expected) {
if (expected == null ? actual == null : expected.equals(actual)) return;
++failures;
System.err.println(what + "\n got: [" + actual + "]\n expected: [" + expected + "]");
}
private static Map<String, String> map(String... keyValues) {
Map<String, String> result = new LinkedHashMap<>();
for (int i = 0; i < keyValues.length; i += 2) result.put(keyValues[i], keyValues[i + 1]);
return result;
}
public static void main(String[] args) {
// ---- the K=V;K grammar (the service's, unchanged) -------------------------------------------
Map<String, String> env = new HashMap<>(map("B", "old", "E", "keep"));
ServerEnvironment.apply(env, "A=1;B;C=;=x;;D=4;A=2");
expect("K=V sets, a bare K unsets, K= sets empty, =x and empty entries are skipped, the last wins",
env, new HashMap<>(map("A", "2", "C", "", "D", "4", "E", "keep")));
Map<String, String> untouched = new HashMap<>(map("A", "1"));
ServerEnvironment.apply(untouched, null);
expect("no env extra changes nothing", untouched, new HashMap<>(map("A", "1")));
// ---- the server role ----------------------------------------------------------------------
Map<String, String> launcher = new HashMap<>(map(
"MOBILEGL_TRANSPORT", "spawn",
"MOBILEGL_IPC_CONTROL", "tcp://10.0.0.2:40613",
"MOBILEGL_IPC_ENDPOINT", "tcp://x",
"MOBILEGL_IPC_DIAL", "yes",
"PATH", "/system/bin"));
ServerEnvironment.applyServerRole(launcher,
"MOBILEGL_IPC_ROLE=client;MOBILEGL_BACKEND_TYPE=DirectGLES;MOBILEGL_IPC_RING_MB=8;"
+ "MOBILEGL_IPC_SERVER_PATH=/x;MOBILEGL_IPC_STAGE_MB=4;FOO=bar",
"a-token-of-sixteen-bytes", "DirectVulkan", "/data/files/mglwin.log");
expect("the server role: forced keys win over the env extra, the scrub list is gone, the backend "
+ "extra pins over the env's, the token and the default log path are set",
launcher, new HashMap<>(map(
"PATH", "/system/bin",
"FOO", "bar",
"MOBILEGL_BACKEND_TYPE", "DirectVulkan",
"MOBILEGL_IPC_ROLE", "server",
"MOBILEGL_IPC_DIAL", "no",
"MOBILEGL_IPC_LOG_FORWARD", "1",
"MOBILEGL_IPC_TOKEN", "a-token-of-sixteen-bytes",
"MOBILEGL_LOG_FILE_PATH", "/data/files/mglwin.log")));
Map<String, String> service = new HashMap<>();
ServerEnvironment.applyServerRole(service, "MOBILEGL_BACKEND_TYPE=DirectGLES;MOBILEGL_LOG_FILE_PATH=/sdcard/x.log",
null, null, "/data/files/mgl.log");
expect("the service's shape: no token is an empty token, no backend extra keeps the env's, an env "
+ "log path is kept",
service, new HashMap<>(map(
"MOBILEGL_BACKEND_TYPE", "DirectGLES",
"MOBILEGL_IPC_ROLE", "server",
"MOBILEGL_IPC_DIAL", "no",
"MOBILEGL_IPC_LOG_FORWARD", "1",
"MOBILEGL_IPC_TOKEN", "",
"MOBILEGL_LOG_FILE_PATH", "/sdcard/x.log")));
// ---- the Os.setenv / Os.unsetenv edits the display Activity applies ---------------------------
Map<String, String> edits = ServerEnvironment.changes(
map("A", "1", "B", "2", "C", "3", "MOBILEGL_TRANSPORT", "spawn"),
map("A", "1", "B", "5", "D", "4", "E", ""));
expect("changed and new keys are set (sorted), dropped keys are unset (null), equal keys are left",
new java.util.ArrayList<>(edits.entrySet()).toString(),
"[B=5, D=4, E=, C=null, MOBILEGL_TRANSPORT=null]");
// ---- aspect-fit ----------------------------------------------------------------------------------
expect("a portrait screen letterboxes a 640x480 buffer: full width",
java.util.Arrays.toString(ServerEnvironment.aspectFit(1080, 2400, 640, 480)), "[1080, 810]");
expect("a landscape screen pillarboxes it: full height",
java.util.Arrays.toString(ServerEnvironment.aspectFit(2400, 1080, 640, 480)), "[1440, 1080]");
expect("the same aspect fills the view",
java.util.Arrays.toString(ServerEnvironment.aspectFit(1280, 960, 640, 480)), "[1280, 960]");
expect("no fixed size (0/0: the layout's own) fills the view",
java.util.Arrays.toString(ServerEnvironment.aspectFit(1080, 2400, 0, 0)), "[-1, -1]");
expect("an unmeasured view fills the view",
java.util.Arrays.toString(ServerEnvironment.aspectFit(0, 0, 640, 480)), "[-1, -1]");
if (failures != 0) {
System.err.println("ServerEnvironmentTest: " + failures + " failure(s)");
System.exit(1);
}
System.out.println("ServerEnvironmentTest: all checks passed");
}
}