Added a simple smoke test for Graphics3D. It attempts to exercise the entire graphics-3d pipeline modulo compositor.

BUG=93809

Review URL: http://codereview.chromium.org/7818004

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@99387 0039d316-1c4b-4281-b951-d872f2087c98

3 files changed, 73 insertions, 7 deletions

diff --git a/ppapi/ppapi_tests.gypi b/ppapi/ppapi_tests.gypi
index b3dcb05..1f889b4 100644
--- a/ppapi/ppapi_tests.gypi
+++ b/ppapi/ppapi_tests.gypi
@@ -60,6 +60,9 @@
     {
       'target_name': 'ppapi_tests',
       'type': 'loadable_module',
+      'include_dirs': [
+        'lib/gl/include',
+      ],
       'sources': [
         # Common test files.
         'tests/test_case.cc',
diff --git a/ppapi/tests/test_graphics_3d.cc b/ppapi/tests/test_graphics_3d.cc
index 3f86e19..3035abf 100644
--- a/ppapi/tests/test_graphics_3d.cc
+++ b/ppapi/tests/test_graphics_3d.cc
@@ -4,20 +4,72 @@
 
 #include "ppapi/tests/test_graphics_3d.h"
 
-#include "ppapi/c/dev/ppb_graphics_3d_dev.h"
+#include <GLES2/gl2.h>
+
 #include "ppapi/c/dev/ppb_opengles_dev.h"
+#include "ppapi/c/dev/ppb_testing_dev.h"
+#include "ppapi/cpp/dev/graphics_3d_dev.h"
 #include "ppapi/cpp/module.h"
+#include "ppapi/tests/test_utils.h"
+#include "ppapi/tests/testing_instance.h"
 
 REGISTER_TEST_CASE(Graphics3D);
 
 bool TestGraphics3D::Init() {
-  graphics_3d_ = reinterpret_cast<const PPB_Graphics3D_Dev*>(
-      pp::Module::Get()->GetBrowserInterface(PPB_GRAPHICS_3D_DEV_INTERFACE));
   opengl_es2_ = reinterpret_cast<const PPB_OpenGLES2_Dev*>(
       pp::Module::Get()->GetBrowserInterface(PPB_OPENGLES2_DEV_INTERFACE));
-  return graphics_3d_ && opengl_es2_ && InitTestingInterface();
+  return opengl_es2_ && InitTestingInterface();
 }
 
 void TestGraphics3D::RunTest() {
+  RUN_TEST(Frame);
+}
+
+std::string TestGraphics3D::TestFrame() {
+  const int width = 16;
+  const int height = 16;
+  const int32_t attribs[] = {
+      PP_GRAPHICS3DATTRIB_WIDTH, width,
+      PP_GRAPHICS3DATTRIB_HEIGHT, height,
+      PP_GRAPHICS3DATTRIB_NONE
+  };
+  pp::Graphics3D_Dev context(*instance_, pp::Graphics3D_Dev(), attribs);
+  ASSERT_FALSE(context.is_null());
+
+  // Clear color buffer to opaque red.
+  opengl_es2_->ClearColor(context.pp_resource(), 1.0f, 0.0f, 0.0f, 1.0f);
+  opengl_es2_->Clear(context.pp_resource(), GL_COLOR_BUFFER_BIT);
+  // Check if the color buffer has opaque red.
+  const uint8_t red_color[4] = {255, 0, 0, 255};
+  std::string error = TestPixel(&context, width/2, height/2, red_color);
+  if (!error.empty())
+    return error;
+
+  int32_t rv = SwapBuffersSync(&context);
+  ASSERT_EQ(rv, PP_OK);
+  PASS();
+}
+
+int32_t TestGraphics3D::SwapBuffersSync(pp::Graphics3D_Dev* context) {
+  TestCompletionCallback callback(instance_->pp_instance(), true);
+  int32_t rv = context->SwapBuffers(callback);
+  if (rv != PP_OK_COMPLETIONPENDING)
+    return rv;
+
+  return callback.WaitForResult();
+}
+
+std::string TestGraphics3D::TestPixel(
+    pp::Graphics3D_Dev* context,
+    int x, int y, const uint8_t expected_color[4]) {
+  GLubyte pixel_color[4];
+  opengl_es2_->ReadPixels(context->pp_resource(),
+      x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
+
+  ASSERT_EQ(pixel_color[0], expected_color[0]);
+  ASSERT_EQ(pixel_color[1], expected_color[1]);
+  ASSERT_EQ(pixel_color[2], expected_color[2]);
+  ASSERT_EQ(pixel_color[3], expected_color[3]);
+  PASS();
 }
 
diff --git a/ppapi/tests/test_graphics_3d.h b/ppapi/tests/test_graphics_3d.h
index 34eacd0..444716f 100644
--- a/ppapi/tests/test_graphics_3d.h
+++ b/ppapi/tests/test_graphics_3d.h
@@ -5,11 +5,15 @@
 #ifndef PAPPI_TESTS_TEST_GRAPHICS_3D_H_
 #define PAPPI_TESTS_TEST_GRAPHICS_3D_H_
 
+#include <string>
 #include "ppapi/tests/test_case.h"
 
-struct PPB_Graphics3D_Dev;
 struct PPB_OpenGLES2_Dev;
 
+namespace pp {
+class Graphics3D_Dev;
+}  // namespace pp
+
 class TestGraphics3D : public TestCase {
  public:
   TestGraphics3D(TestingInstance* instance) : TestCase(instance) {}
@@ -19,8 +23,15 @@ class TestGraphics3D : public TestCase {
   virtual void RunTest();
 
  private:
-  // Used by the tests that access the C API directly.
-  const PPB_Graphics3D_Dev* graphics_3d_;
+  // Various tests.
+  std::string TestFrame();
+
+  // Utils used by various tests.
+  int32_t SwapBuffersSync(pp::Graphics3D_Dev* context);
+  std::string TestPixel(pp::Graphics3D_Dev* context,
+                        int x, int y, const uint8_t expected_color[4]);
+
+  // OpenGL ES2 interface.
   const PPB_OpenGLES2_Dev* opengl_es2_;
 };