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-rw-r--r--third_party/aom/test/acm_random.h13
1 files changed, 13 insertions, 0 deletions
diff --git a/third_party/aom/test/acm_random.h b/third_party/aom/test/acm_random.h
index 4842345ff..023387061 100644
--- a/third_party/aom/test/acm_random.h
+++ b/third_party/aom/test/acm_random.h
@@ -36,6 +36,19 @@ class ACMRandom {
return (value >> 15) & 0xffff;
}
+ int16_t Rand15Signed(void) {
+ const uint32_t value =
+ random_.Generate(testing::internal::Random::kMaxRange);
+ return (value >> 17) & 0xffff;
+ }
+
+ uint16_t Rand12(void) {
+ const uint32_t value =
+ random_.Generate(testing::internal::Random::kMaxRange);
+ // There's a bit more entropy in the upper bits of this implementation.
+ return (value >> 19) & 0xfff;
+ }
+
int16_t Rand9Signed(void) {
// Use 9 bits: values between 255 (0x0FF) and -256 (0x100).
const uint32_t value = random_.Generate(512);