SurfaceTexture: add a blit-to-FBO test
This change adds a test for blitting (via GL rendering) from a
SurfaceTexture to an FBO.
Change-Id: Ib3386fcc3f37153277f3e37a26347441bb80ab58
diff --git a/libs/gui/tests/SurfaceTexture_test.cpp b/libs/gui/tests/SurfaceTexture_test.cpp
index 6d1b951..c313904 100644
--- a/libs/gui/tests/SurfaceTexture_test.cpp
+++ b/libs/gui/tests/SurfaceTexture_test.cpp
@@ -536,6 +536,20 @@
}
}
+void fillRGBA8BufferSolid(uint8_t* buf, int w, int h, int stride, uint8_t r,
+ uint8_t g, uint8_t b, uint8_t a) {
+ const size_t PIXEL_SIZE = 4;
+ for (int y = 0; y < h; y++) {
+ for (int x = 0; x < h; x++) {
+ off_t offset = (y * stride + x) * PIXEL_SIZE;
+ buf[offset + 0] = r;
+ buf[offset + 1] = g;
+ buf[offset + 2] = b;
+ buf[offset + 3] = a;
+ }
+ }
+}
+
TEST_F(SurfaceTextureGLTest, TexturingFromCpuFilledYV12BufferNpot) {
const int texWidth = 64;
const int texHeight = 66;
@@ -1616,4 +1630,101 @@
}
}
+class SurfaceTextureFBOTest : public SurfaceTextureGLTest {
+protected:
+
+ virtual void SetUp() {
+ SurfaceTextureGLTest::SetUp();
+
+ glGenFramebuffers(1, &mFbo);
+ ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
+
+ glGenTextures(1, &mFboTex);
+ glBindTexture(GL_TEXTURE_2D, mFboTex);
+ glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, getSurfaceWidth(),
+ getSurfaceHeight(), 0, GL_RGBA, GL_UNSIGNED_BYTE, NULL);
+ glBindTexture(GL_TEXTURE_2D, 0);
+ ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
+
+ glBindFramebuffer(GL_FRAMEBUFFER, mFbo);
+ glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0,
+ GL_TEXTURE_2D, mFboTex, 0);
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+ ASSERT_EQ(GLenum(GL_NO_ERROR), glGetError());
+ }
+
+ virtual void TearDown() {
+ SurfaceTextureGLTest::TearDown();
+
+ glDeleteTextures(1, &mFboTex);
+ glDeleteFramebuffers(1, &mFbo);
+ }
+
+ GLuint mFbo;
+ GLuint mFboTex;
+};
+
+// This test is intended to verify that proper synchronization is done when
+// rendering into an FBO.
+TEST_F(SurfaceTextureFBOTest, BlitFromCpuFilledBufferToFbo) {
+ const int texWidth = 64;
+ const int texHeight = 64;
+
+ ASSERT_EQ(NO_ERROR, native_window_set_buffers_geometry(mANW.get(),
+ texWidth, texHeight, HAL_PIXEL_FORMAT_RGBA_8888));
+ ASSERT_EQ(NO_ERROR, native_window_set_usage(mANW.get(),
+ GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN));
+
+ android_native_buffer_t* anb;
+ ASSERT_EQ(NO_ERROR, mANW->dequeueBuffer(mANW.get(), &anb));
+ ASSERT_TRUE(anb != NULL);
+
+ sp<GraphicBuffer> buf(new GraphicBuffer(anb, false));
+ ASSERT_EQ(NO_ERROR, mANW->lockBuffer(mANW.get(), buf->getNativeBuffer()));
+
+ // Fill the buffer with green
+ uint8_t* img = NULL;
+ buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN, (void**)(&img));
+ fillRGBA8BufferSolid(img, texWidth, texHeight, buf->getStride(), 0, 255,
+ 0, 255);
+ buf->unlock();
+ ASSERT_EQ(NO_ERROR, mANW->queueBuffer(mANW.get(), buf->getNativeBuffer()));
+
+ ASSERT_EQ(NO_ERROR, mST->updateTexImage());
+
+ glBindFramebuffer(GL_FRAMEBUFFER, mFbo);
+ drawTexture();
+ glBindFramebuffer(GL_FRAMEBUFFER, 0);
+
+ for (int i = 0; i < 4; i++) {
+ SCOPED_TRACE(String8::format("frame %d", i).string());
+
+ ASSERT_EQ(NO_ERROR, mANW->dequeueBuffer(mANW.get(), &anb));
+ ASSERT_TRUE(anb != NULL);
+
+ buf = new GraphicBuffer(anb, false);
+ ASSERT_EQ(NO_ERROR, mANW->lockBuffer(mANW.get(),
+ buf->getNativeBuffer()));
+
+ // Fill the buffer with red
+ ASSERT_EQ(NO_ERROR, buf->lock(GRALLOC_USAGE_SW_WRITE_OFTEN,
+ (void**)(&img)));
+ fillRGBA8BufferSolid(img, texWidth, texHeight, buf->getStride(), 255, 0,
+ 0, 255);
+ ASSERT_EQ(NO_ERROR, buf->unlock());
+ ASSERT_EQ(NO_ERROR, mANW->queueBuffer(mANW.get(),
+ buf->getNativeBuffer()));
+
+ ASSERT_EQ(NO_ERROR, mST->updateTexImage());
+
+ drawTexture();
+
+ EXPECT_TRUE(checkPixel( 24, 39, 255, 0, 0, 255));
+ }
+
+ glBindFramebuffer(GL_FRAMEBUFFER, mFbo);
+
+ EXPECT_TRUE(checkPixel( 24, 39, 0, 255, 0, 255));
+}
+
} // namespace android