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