content/renderer/pepper/pepper_graphics_2d_host_unittest.cc

   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 #include "content/renderer/pepper/pepper_graphics_2d_host.h"
   6
   7 #include "base/basictypes.h"
   8 #include "base/message_loop/message_loop.h"
   9 #include "content/renderer/pepper/gfx_conversion.h"
  10 #include "content/renderer/pepper/mock_renderer_ppapi_host.h"
  11 #include "content/renderer/pepper/ppb_image_data_impl.h"
  12 #include "ppapi/shared_impl/ppb_view_shared.h"
  13 #include "ppapi/shared_impl/proxy_lock.h"
  14 #include "ppapi/shared_impl/test_globals.h"
  15 #include "testing/gtest/include/gtest/gtest.h"
  16 #include "third_party/WebKit/public/platform/WebCanvas.h"
  17 #include "third_party/skia/include/core/SkCanvas.h"
  18 #include "ui/events/latency_info.h"
  19 #include "ui/gfx/geometry/point.h"
  20 #include "ui/gfx/geometry/rect.h"
  21
  22 using blink::WebCanvas;
  23
  24 namespace content {
  25
  26 class PepperGraphics2DHostTest : public testing::Test {
  27  public:
  28   static bool ConvertToLogicalPixels(float scale,
  29                                      gfx::Rect* op_rect,
  30                                      gfx::Point* delta) {
  31     return PepperGraphics2DHost::ConvertToLogicalPixels(scale, op_rect, delta);
  32   }
  33
  34   PepperGraphics2DHostTest() : renderer_ppapi_host_(NULL, 12345) {}
  35
  36   ~PepperGraphics2DHostTest() override {
  37     ppapi::ProxyAutoLock proxy_lock;
  38     host_.reset();
  39   }
  40
  41   void Init(PP_Instance instance,
  42             const PP_Size& backing_store_size,
  43             const PP_Rect& plugin_rect) {
  44     renderer_view_data_.rect = plugin_rect;
  45     test_globals_.GetResourceTracker()->DidCreateInstance(instance);
  46     scoped_refptr<PPB_ImageData_Impl> backing_store(
  47         new PPB_ImageData_Impl(instance, PPB_ImageData_Impl::ForTest()));
  48     host_.reset(PepperGraphics2DHost::Create(&renderer_ppapi_host_,
  49                                              instance,
  50                                              12345,
  51                                              backing_store_size,
  52                                              PP_FALSE,
  53                                              backing_store));
  54     DCHECK(host_.get());
  55   }
  56
  57   void PaintImageData(PPB_ImageData_Impl* image_data) {
  58     ppapi::HostResource image_data_resource;
  59     image_data_resource.SetHostResource(image_data->pp_instance(),
  60                                         image_data->pp_resource());
  61     host_->OnHostMsgPaintImageData(
  62         NULL, image_data_resource, PP_Point(), false, PP_Rect());
  63   }
  64
  65   void Flush() {
  66     ppapi::host::HostMessageContext context(
  67         ppapi::proxy::ResourceMessageCallParams(host_->pp_resource(), 0));
  68     std::vector<ui::LatencyInfo> latency;
  69     host_->OnHostMsgFlush(&context, latency);
  70     host_->ViewInitiatedPaint();
  71     host_->SendOffscreenFlushAck();
  72   }
  73
  74   void PaintToWebCanvas(SkBitmap* bitmap) {
  75     scoped_ptr<WebCanvas> canvas(new WebCanvas(*bitmap));
  76     gfx::Rect plugin_rect(PP_ToGfxRect(renderer_view_data_.rect));
  77     host_->Paint(canvas.get(),
  78                  plugin_rect,
  79                  gfx::Rect(0, 0, plugin_rect.width(), plugin_rect.height()));
  80   }
  81
  82   void ResetPageBitmap(SkBitmap* bitmap) {
  83     PP_Rect plugin_rect = renderer_view_data_.rect;
  84     int width = plugin_rect.point.x + plugin_rect.size.width;
  85     int height = plugin_rect.point.y + plugin_rect.size.height;
  86     if (bitmap->isNull() || bitmap->width() != width ||
  87         bitmap->height() != height) {
  88       bitmap->allocN32Pixels(width, height);
  89     }
  90     bitmap->eraseColor(0);
  91   }
  92
  93  private:
  94   ppapi::ViewData renderer_view_data_;
  95   scoped_ptr<PepperGraphics2DHost> host_;
  96   base::MessageLoop message_loop_;
  97   MockRendererPpapiHost renderer_ppapi_host_;
  98   ppapi::TestGlobals test_globals_;
  99 };
 100
 101 TEST_F(PepperGraphics2DHostTest, ConvertToLogicalPixels) {
 102   static const struct {
 103     int x1;
 104     int y1;
 105     int w1;
 106     int h1;
 107     int x2;
 108     int y2;
 109     int w2;
 110     int h2;
 111     int dx1;
 112     int dy1;
 113     int dx2;
 114     int dy2;
 115     float scale;
 116     bool result;
 117   } tests[] = {{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1.0, true},
 118                {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2.0, true},
 119                {0, 0, 4, 4, 0, 0, 2, 2, 0, 0, 0, 0, 0.5, true},
 120                {1, 1, 4, 4, 0, 0, 3, 3, 0, 0, 0, 0, 0.5, false},
 121                {53, 75, 100, 100, 53, 75, 100, 100, 0, 0, 0, 0, 1.0, true},
 122                {53, 75, 100, 100, 106, 150, 200, 200, 0, 0, 0, 0, 2.0, true},
 123                {53, 75, 100, 100, 26, 37, 51, 51, 0, 0, 0, 0, 0.5, false},
 124                {53, 74, 100, 100, 26, 37, 51, 50, 0, 0, 0, 0, 0.5, false},
 125                {-1, -1, 100, 100, -1, -1, 51, 51, 0, 0, 0, 0, 0.5, false},
 126                {-2, -2, 100, 100, -1, -1, 50, 50, 4, -4, 2, -2, 0.5, true},
 127                {-101, -100, 50, 50, -51, -50, 26, 25, 0, 0, 0, 0, 0.5, false},
 128                {10, 10, 20, 20, 5, 5, 10, 10, 0, 0, 0, 0, 0.5, true},
 129                // Cannot scroll due to partial coverage on sides
 130                {11, 10, 20, 20, 5, 5, 11, 10, 0, 0, 0, 0, 0.5, false},
 131                // Can scroll since backing store is actually smaller/scaling up
 132                {11, 20, 100, 100, 22, 40, 200, 200, 7, 3, 14, 6, 2.0, true},
 133                // Can scroll due to delta and bounds being aligned
 134                {10, 10, 20, 20, 5, 5, 10, 10, 6, 4, 3, 2, 0.5, true},
 135                // Cannot scroll due to dx
 136                {10, 10, 20, 20, 5, 5, 10, 10, 5, 4, 2, 2, 0.5, false},
 137                // Cannot scroll due to dy
 138                {10, 10, 20, 20, 5, 5, 10, 10, 6, 3, 3, 1, 0.5, false},
 139                // Cannot scroll due to top
 140                {10, 11, 20, 20, 5, 5, 10, 11, 6, 4, 3, 2, 0.5, false},
 141                // Cannot scroll due to left
 142                {7, 10, 20, 20, 3, 5, 11, 10, 6, 4, 3, 2, 0.5, false},
 143                // Cannot scroll due to width
 144                {10, 10, 21, 20, 5, 5, 11, 10, 6, 4, 3, 2, 0.5, false},
 145                // Cannot scroll due to height
 146                {10, 10, 20, 51, 5, 5, 10, 26, 6, 4, 3, 2, 0.5, false},
 147                // Check negative scroll deltas
 148                {10, 10, 20, 20, 5, 5, 10, 10, -6, -4, -3, -2, 0.5, true},
 149                {10, 10, 20, 20, 5, 5, 10, 10, -6, -3, -3, -1, 0.5, false}, };
 150   for (size_t i = 0; i < arraysize(tests); ++i) {
 151     gfx::Rect r1(tests[i].x1, tests[i].y1, tests[i].w1, tests[i].h1);
 152     gfx::Rect r2(tests[i].x2, tests[i].y2, tests[i].w2, tests[i].h2);
 153     gfx::Rect orig = r1;
 154     gfx::Point delta(tests[i].dx1, tests[i].dy1);
 155     bool res = ConvertToLogicalPixels(tests[i].scale, &r1, &delta);
 156     EXPECT_EQ(r2.ToString(), r1.ToString());
 157     EXPECT_EQ(res, tests[i].result);
 158     if (res) {
 159       EXPECT_EQ(delta, gfx::Point(tests[i].dx2, tests[i].dy2));
 160     }
 161     // Reverse the scale and ensure all the original pixels are still inside
 162     // the result.
 163     ConvertToLogicalPixels(1.0f / tests[i].scale, &r1, NULL);
 164     EXPECT_TRUE(r1.Contains(orig));
 165   }
 166 }
 167
 168 }  // namespace content