Add tests for checking available openal extensions

Author: gabeklavans

test/openal_extensions.c

@@ -0,0 +1,72 @@
+// So far just does some sanity checks for the available extensions.
+//
+// In the future, could also try to enable different extensions and test for
+// output correctness.
+
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef __EMSCRIPTEN__
+#include <emscripten.h>
+#define ASSUME_AL_FLOAT32
+#endif
+#include <AL/al.h>
+#include <AL/alc.h>
+#include <AL/alext.h>
+
+static int result = EXIT_SUCCESS;
+
+static void end_test() {
+#ifdef __EMSCRIPTEN__
+    REPORT_RESULT(result);
+#endif
+    exit(result);
+}
+
+#define NUM_ALC_EXTENSIONS 2
+static const ALCchar *alc_extensions[NUM_ALC_EXTENSIONS] = {
+    "ALC_SOFT_pause_device",
+    "ALC_SOFT_HRTF",
+};
+
+#define NUM_AL_EXTENSIONS 5
+static const ALCchar *al_extensions[NUM_AL_EXTENSIONS] = {
+    "AL_EXT_float32",
+    "AL_SOFT_loop_points",
+    "AL_SOFT_source_length",
+    "AL_EXT_source_distance_model",
+    "AL_SOFT_source_spatialize",
+};
+
+static void check_alc_extension(const ALCchar *extension) {
+    ALCdevice *device = alcOpenDevice(NULL);
+    if (!device) {
+        fprintf(stderr, "Failed to open default device.");
+        result = EXIT_FAILURE;
+        return;
+    }
+
+    if (alcIsExtensionPresent(device, extension) != ALC_TRUE) {
+        fprintf(stderr, "Extension %s was not present.", extension);
+        result = EXIT_FAILURE;
+    }
+}
+
+static void check_al_extension(const ALchar *extension) {
+    if (alIsExtensionPresent(extension) != ALC_TRUE) {
+        fprintf(stderr, "Extension %s was not present.", extension);
+        result = EXIT_FAILURE;
+    }
+}
+
+int main() {
+
+    for(int i = 0; i < NUM_ALC_EXTENSIONS; i++) {
+        check_alc_extension(alc_extensions[i]);
+    }
+
+    for(int i = 0; i < NUM_AL_EXTENSIONS; i++) {
+        check_al_extension(al_extensions[i]);
+    }
+
+    end_test();
+}

test/test_browser.py

@@ -2297,6 +2297,9 @@ def test_openal_error(self, args):
   def test_openal_capture_sanity(self):
     self.btest('openal_capture_sanity.c', expected='0')
 
+  def test_openal_extensions(self):
+    self.btest('openal_extensions.c', expected='0')
+
   def test_runtimelink(self):
     create_file('header.h', r'''
       struct point {