ppapi/tests/test_graphics_3d.cc

   1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ppapi/tests/test_graphics_3d.h"
   6
   7 #include <GLES2/gl2.h>
   8
   9 #include "ppapi/c/dev/ppb_testing_dev.h"
  10 #include "ppapi/c/ppb_opengles2.h"
  11 #include "ppapi/cpp/graphics_3d.h"
  12 #include "ppapi/cpp/module.h"
  13 #include "ppapi/tests/test_utils.h"
  14 #include "ppapi/tests/testing_instance.h"
  15
  16 REGISTER_TEST_CASE(Graphics3D);
  17
  18 bool TestGraphics3D::Init() {
  19   opengl_es2_ = reinterpret_cast<const PPB_OpenGLES2*>(
  20       pp::Module::Get()->GetBrowserInterface(PPB_OPENGLES2_INTERFACE));
  21   return opengl_es2_ && InitTestingInterface();
  22 }
  23
  24 void TestGraphics3D::RunTest() {
  25   RUN_TEST(Frame);
  26 }
  27
  28 std::string TestGraphics3D::TestFrame() {
  29   const int width = 16;
  30   const int height = 16;
  31   const int32_t attribs[] = {
  32       PP_GRAPHICS3DATTRIB_WIDTH, width,
  33       PP_GRAPHICS3DATTRIB_HEIGHT, height,
  34       PP_GRAPHICS3DATTRIB_NONE
  35   };
  36   pp::Graphics3D context(instance_, attribs);
  37   ASSERT_FALSE(context.is_null());
  38
  39   // Clear color buffer to opaque red.
  40   opengl_es2_->ClearColor(context.pp_resource(), 1.0f, 0.0f, 0.0f, 1.0f);
  41   opengl_es2_->Clear(context.pp_resource(), GL_COLOR_BUFFER_BIT);
  42   // Check if the color buffer has opaque red.
  43   const uint8_t red_color[4] = {255, 0, 0, 255};
  44   std::string error = TestPixel(&context, width/2, height/2, red_color);
  45   if (!error.empty())
  46     return error;
  47
  48   int32_t rv = SwapBuffersSync(&context);
  49   ASSERT_EQ(rv, PP_OK);
  50   PASS();
  51 }
  52
  53 int32_t TestGraphics3D::SwapBuffersSync(pp::Graphics3D* context) {
  54   TestCompletionCallback callback(instance_->pp_instance(), true);
  55   int32_t rv = context->SwapBuffers(callback);
  56   if (rv != PP_OK_COMPLETIONPENDING)
  57     return rv;
  58
  59   return callback.WaitForResult();
  60 }
  61
  62 std::string TestGraphics3D::TestPixel(
  63     pp::Graphics3D* context,
  64     int x, int y, const uint8_t expected_color[4]) {
  65   GLubyte pixel_color[4];
  66   opengl_es2_->ReadPixels(context->pp_resource(),
  67       x, y, 1, 1, GL_RGBA, GL_UNSIGNED_BYTE, pixel_color);
  68
  69   ASSERT_EQ(pixel_color[0], expected_color[0]);
  70   ASSERT_EQ(pixel_color[1], expected_color[1]);
  71   ASSERT_EQ(pixel_color[2], expected_color[2]);
  72   ASSERT_EQ(pixel_color[3], expected_color[3]);
  73   PASS();
  74 }
  75