ppapi/tests/test_graphics_2d.h

   1 // Copyright (c) 2012 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 #ifndef PPAPI_TESTS_TEST_GRAPHICS_2D_H_
   6 #define PPAPI_TESTS_TEST_GRAPHICS_2D_H_
   7
   8 #include <string>
   9
  10 #include "ppapi/c/pp_stdint.h"
  11 #include "ppapi/c/ppb_graphics_2d.h"
  12 #include "ppapi/c/ppb_image_data.h"
  13 #include "ppapi/tests/test_case.h"
  14
  15 namespace pp {
  16 class Graphics2D;
  17 class ImageData;
  18 class Point;
  19 class Rect;
  20 }
  21
  22 class TestGraphics2D : public TestCase {
  23  public:
  24   explicit TestGraphics2D(TestingInstance* instance);
  25
  26   // TestCase implementation.
  27   virtual void DidChangeView(const pp::View& view);
  28   virtual bool Init();
  29   virtual void RunTests(const std::string& filter);
  30
  31   void QuitMessageLoop();
  32
  33  private:
  34   bool ReadImageData(const pp::Graphics2D& dc,
  35                      pp::ImageData* image,
  36                      const pp::Point& top_left) const;
  37
  38   void FillRectInImage(pp::ImageData* image,
  39                        const pp::Rect& rect,
  40                        uint32_t color) const;
  41
  42   // Fill image with gradient colors.
  43   void FillImageWithGradient(pp::ImageData* image) const;
  44
  45   // Return true if images are the same.
  46   bool CompareImages(const pp::ImageData& image1,
  47                      const pp::ImageData& image2);
  48
  49   // Return true if images within specified rectangles are the same.
  50   bool CompareImageRect(const pp::ImageData& image1,
  51                         const pp::Rect& rc1,
  52                         const pp::ImageData& image2,
  53                         const pp::Rect& rc2) const;
  54
  55   // Validates that the given image is a single color with a square of another
  56   // color inside it.
  57   bool IsSquareInImage(const pp::ImageData& image_data,
  58                        uint32_t background_color,
  59                        const pp::Rect& square, uint32_t square_color) const;
  60
  61   // Validates that the given device context is a single color with a square of
  62   // another color inside it.
  63   bool IsSquareInDC(const pp::Graphics2D& dc, uint32_t background_color,
  64                     const pp::Rect& square, uint32_t square_color) const;
  65
  66   // Validates that the given device context is filled with the given color.
  67   bool IsDCUniformColor(const pp::Graphics2D& dc, uint32_t color) const;
  68
  69   // Issues a flush on the given device context and blocks until the flush
  70   // has issued its callback. Returns an empty string on success or an error
  71   // message on failure.
  72   std::string FlushAndWaitForDone(pp::Graphics2D* context);
  73
  74   // Creates an image and replaces the contents of the Graphics2D with the
  75   // image, waiting for completion. This returns the resource ID of the image
  76   // data we created. This image data will be released by the time the call
  77   // completes, but it can be used for comparisons later.
  78   //
  79   // Returns 0 on failure.
  80   PP_Resource ReplaceContentsAndReturnID(pp::Graphics2D* dc,
  81                                          const pp::Size& size);
  82
  83   // Resets the internal state of view change.
  84   void ResetViewChangedState();
  85
  86   // Waits until we get a view change event. Note that it's possible to receive
  87   // an unexpected event, thus post_quit_on_view_changed_ is introduced so that
  88   // DidChangeView can check whether the event is from here.
  89   bool WaitUntilViewChanged();
  90
  91   std::string TestInvalidResource();
  92   std::string TestInvalidSize();
  93   std::string TestHumongous();
  94   std::string TestInitToZero();
  95   std::string TestDescribe();
  96   std::string TestScale();
  97   std::string TestPaint();
  98   std::string TestScroll();
  99   std::string TestReplace();
 100   std::string TestFlush();
 101   std::string TestFlushOffscreenUpdate();
 102   std::string TestDev();
 103   std::string TestReplaceContentsCaching();
 104   std::string TestBindNull();
 105
 106   // Used by the tests that access the C API directly.
 107   const PPB_Graphics2D_1_1* graphics_2d_interface_;
 108   const PPB_ImageData_1_0* image_data_interface_;
 109
 110   // Used to indicate that DidChangeView has happened, in order to make plugin
 111   // and ui synchronous.
 112   bool is_view_changed_;
 113
 114   // Set to true to request that the next invocation of DidChangeView should
 115   // post a quit to the message loop. DidChangeView will also reset the flag so
 116   // this will only happen once.
 117   bool post_quit_on_view_changed_;
 118 };
 119
 120 #endif  // PPAPI_TESTS_TEST_GRAPHICS_2D_H_