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 "testing/gtest/include/gtest/gtest.h" 9 #include "ui/gfx/point.h" 10 #include "ui/gfx/rect.h" 11 12 namespace content { 13 14 class PepperGraphics2DHostTest : public testing::Test { 15 public: 16 static bool ConvertToLogicalPixels(float scale, 17 gfx::Rect* op_rect, 18 gfx::Point* delta) { 19 return PepperGraphics2DHost::ConvertToLogicalPixels(scale, op_rect, delta); 20 } 21 }; 22 23 TEST_F(PepperGraphics2DHostTest, ConvertToLogicalPixels) { 24 static const struct { 25 int x1; 26 int y1; 27 int w1; 28 int h1; 29 int x2; 30 int y2; 31 int w2; 32 int h2; 33 int dx1; 34 int dy1; 35 int dx2; 36 int dy2; 37 float scale; 38 bool result; 39 } tests[] = { 40 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1.0, true }, 41 { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2.0, true }, 42 { 0, 0, 4, 4, 0, 0, 2, 2, 0, 0, 0, 0, 0.5, true }, 43 { 1, 1, 4, 4, 0, 0, 3, 3, 0, 0, 0, 0, 0.5, false }, 44 { 53, 75, 100, 100, 53, 75, 100, 100, 0, 0, 0, 0, 1.0, true }, 45 { 53, 75, 100, 100, 106, 150, 200, 200, 0, 0, 0, 0, 2.0, true }, 46 { 53, 75, 100, 100, 26, 37, 51, 51, 0, 0, 0, 0, 0.5, false }, 47 { 53, 74, 100, 100, 26, 37, 51, 50, 0, 0, 0, 0, 0.5, false }, 48 { -1, -1, 100, 100, -1, -1, 51, 51, 0, 0, 0, 0, 0.5, false }, 49 { -2, -2, 100, 100, -1, -1, 50, 50, 4, -4, 2, -2, 0.5, true }, 50 { -101, -100, 50, 50, -51, -50, 26, 25, 0, 0, 0, 0, 0.5, false }, 51 { 10, 10, 20, 20, 5, 5, 10, 10, 0, 0, 0, 0, 0.5, true }, 52 // Cannot scroll due to partial coverage on sides 53 { 11, 10, 20, 20, 5, 5, 11, 10, 0, 0, 0, 0, 0.5, false }, 54 // Can scroll since backing store is actually smaller/scaling up 55 { 11, 20, 100, 100, 22, 40, 200, 200, 7, 3, 14, 6, 2.0, true }, 56 // Can scroll due to delta and bounds being aligned 57 { 10, 10, 20, 20, 5, 5, 10, 10, 6, 4, 3, 2, 0.5, true }, 58 // Cannot scroll due to dx 59 { 10, 10, 20, 20, 5, 5, 10, 10, 5, 4, 2, 2, 0.5, false }, 60 // Cannot scroll due to dy 61 { 10, 10, 20, 20, 5, 5, 10, 10, 6, 3, 3, 1, 0.5, false }, 62 // Cannot scroll due to top 63 { 10, 11, 20, 20, 5, 5, 10, 11, 6, 4, 3, 2, 0.5, false }, 64 // Cannot scroll due to left 65 { 7, 10, 20, 20, 3, 5, 11, 10, 6, 4, 3, 2, 0.5, false }, 66 // Cannot scroll due to width 67 { 10, 10, 21, 20, 5, 5, 11, 10, 6, 4, 3, 2, 0.5, false }, 68 // Cannot scroll due to height 69 { 10, 10, 20, 51, 5, 5, 10, 26, 6, 4, 3, 2, 0.5, false }, 70 // Check negative scroll deltas 71 { 10, 10, 20, 20, 5, 5, 10, 10, -6, -4, -3, -2, 0.5, true }, 72 { 10, 10, 20, 20, 5, 5, 10, 10, -6, -3, -3, -1, 0.5, false }, 73 }; 74 for (size_t i = 0; i < ARRAYSIZE_UNSAFE(tests); ++i) { 75 gfx::Rect r1(tests[i].x1, tests[i].y1, tests[i].w1, tests[i].h1); 76 gfx::Rect r2(tests[i].x2, tests[i].y2, tests[i].w2, tests[i].h2); 77 gfx::Rect orig = r1; 78 gfx::Point delta(tests[i].dx1, tests[i].dy1); 79 bool res = ConvertToLogicalPixels(tests[i].scale, &r1, &delta); 80 EXPECT_EQ(r2.ToString(), r1.ToString()); 81 EXPECT_EQ(res, tests[i].result); 82 if (res) { 83 EXPECT_EQ(delta, gfx::Point(tests[i].dx2, tests[i].dy2)); 84 } 85 // Reverse the scale and ensure all the original pixels are still inside 86 // the result. 87 ConvertToLogicalPixels(1.0f / tests[i].scale, &r1, NULL); 88 EXPECT_TRUE(r1.Contains(orig)); 89 } 90 } 91 92 } // namespace content 93
