SurfaceTexture: add getTransformMatrix tests.
This change adds a test verifying that with no transform set on the
SurfaceTextureClient, the SurfaceTexture will return an identity
transform matrix. It also verifies this same effect in the presence of
an additional call to native_window_set_buffer_count just before the
call to getTransformMatrix.
Bug: 4490420
Change-Id: Ic5adfa29b5696cc2b451433834e3758ef20c5edd
diff --git a/libs/gui/tests/SurfaceTextureClient_test.cpp b/libs/gui/tests/SurfaceTextureClient_test.cpp
index 2f704c8..da04b4a 100644
--- a/libs/gui/tests/SurfaceTextureClient_test.cpp
+++ b/libs/gui/tests/SurfaceTextureClient_test.cpp
@@ -514,4 +514,112 @@
thread->requestExitAndWait();
}
+TEST_F(SurfaceTextureClientTest, GetTransformMatrixReturnsVerticalFlip) {
+ sp<ANativeWindow> anw(mSTC);
+ sp<SurfaceTexture> st(mST);
+ android_native_buffer_t* buf[3];
+ float mtx[16] = {};
+ ASSERT_EQ(OK, native_window_set_buffer_count(anw.get(), 4));
+ ASSERT_EQ(OK, anw->dequeueBuffer(anw.get(), &buf[0]));
+ ASSERT_EQ(OK, anw->queueBuffer(anw.get(), buf[0]));
+ ASSERT_EQ(OK, st->updateTexImage());
+ st->getTransformMatrix(mtx);
+
+ EXPECT_EQ(1.f, mtx[0]);
+ EXPECT_EQ(0.f, mtx[1]);
+ EXPECT_EQ(0.f, mtx[2]);
+ EXPECT_EQ(0.f, mtx[3]);
+
+ EXPECT_EQ(0.f, mtx[4]);
+ EXPECT_EQ(-1.f, mtx[5]);
+ EXPECT_EQ(0.f, mtx[6]);
+ EXPECT_EQ(0.f, mtx[7]);
+
+ EXPECT_EQ(0.f, mtx[8]);
+ EXPECT_EQ(0.f, mtx[9]);
+ EXPECT_EQ(1.f, mtx[10]);
+ EXPECT_EQ(0.f, mtx[11]);
+
+ EXPECT_EQ(0.f, mtx[12]);
+ EXPECT_EQ(1.f, mtx[13]);
+ EXPECT_EQ(0.f, mtx[14]);
+ EXPECT_EQ(1.f, mtx[15]);
}
+
+TEST_F(SurfaceTextureClientTest, GetTransformMatrixSucceedsAfterFreeingBuffers) {
+ sp<ANativeWindow> anw(mSTC);
+ sp<SurfaceTexture> st(mST);
+ android_native_buffer_t* buf[3];
+ float mtx[16] = {};
+ ASSERT_EQ(OK, native_window_set_buffer_count(anw.get(), 4));
+ ASSERT_EQ(OK, anw->dequeueBuffer(anw.get(), &buf[0]));
+ ASSERT_EQ(OK, anw->queueBuffer(anw.get(), buf[0]));
+ ASSERT_EQ(OK, st->updateTexImage());
+ ASSERT_EQ(OK, native_window_set_buffer_count(anw.get(), 6)); // frees buffers
+ st->getTransformMatrix(mtx);
+
+ EXPECT_EQ(1.f, mtx[0]);
+ EXPECT_EQ(0.f, mtx[1]);
+ EXPECT_EQ(0.f, mtx[2]);
+ EXPECT_EQ(0.f, mtx[3]);
+
+ EXPECT_EQ(0.f, mtx[4]);
+ EXPECT_EQ(-1.f, mtx[5]);
+ EXPECT_EQ(0.f, mtx[6]);
+ EXPECT_EQ(0.f, mtx[7]);
+
+ EXPECT_EQ(0.f, mtx[8]);
+ EXPECT_EQ(0.f, mtx[9]);
+ EXPECT_EQ(1.f, mtx[10]);
+ EXPECT_EQ(0.f, mtx[11]);
+
+ EXPECT_EQ(0.f, mtx[12]);
+ EXPECT_EQ(1.f, mtx[13]);
+ EXPECT_EQ(0.f, mtx[14]);
+ EXPECT_EQ(1.f, mtx[15]);
+}
+
+TEST_F(SurfaceTextureClientTest, GetTransformMatrixSucceedsAfterFreeingBuffersWithCrop) {
+ sp<ANativeWindow> anw(mSTC);
+ sp<SurfaceTexture> st(mST);
+ android_native_buffer_t* buf[3];
+ float mtx[16] = {};
+ android_native_rect_t crop;
+ crop.left = 0;
+ crop.top = 0;
+ crop.right = 5;
+ crop.bottom = 5;
+
+ ASSERT_EQ(OK, native_window_set_buffer_count(anw.get(), 4));
+ ASSERT_EQ(OK, native_window_set_buffers_geometry(anw.get(), 8, 8, 0));
+ ASSERT_EQ(OK, anw->dequeueBuffer(anw.get(), &buf[0]));
+ ASSERT_EQ(OK, native_window_set_crop(anw.get(), &crop));
+ ASSERT_EQ(OK, anw->queueBuffer(anw.get(), buf[0]));
+ ASSERT_EQ(OK, st->updateTexImage());
+ ASSERT_EQ(OK, native_window_set_buffer_count(anw.get(), 6)); // frees buffers
+ st->getTransformMatrix(mtx);
+
+ // This accounts for the 1 texel shrink for each edge that's included in the
+ // transform matrix to avoid texturing outside the crop region.
+ EXPECT_EQ(.5f, mtx[0]);
+ EXPECT_EQ(0.f, mtx[1]);
+ EXPECT_EQ(0.f, mtx[2]);
+ EXPECT_EQ(0.f, mtx[3]);
+
+ EXPECT_EQ(0.f, mtx[4]);
+ EXPECT_EQ(-.5f, mtx[5]);
+ EXPECT_EQ(0.f, mtx[6]);
+ EXPECT_EQ(0.f, mtx[7]);
+
+ EXPECT_EQ(0.f, mtx[8]);
+ EXPECT_EQ(0.f, mtx[9]);
+ EXPECT_EQ(1.f, mtx[10]);
+ EXPECT_EQ(0.f, mtx[11]);
+
+ EXPECT_EQ(0.f, mtx[12]);
+ EXPECT_EQ(.5f, mtx[13]);
+ EXPECT_EQ(0.f, mtx[14]);
+ EXPECT_EQ(1.f, mtx[15]);
+}
+
+} // namespace android