| // Copyright 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include "cc/test/layer_test_common.h" |
| |
| #include "cc/base/math_util.h" |
| #include "cc/base/region.h" |
| #include "cc/quads/draw_quad.h" |
| #include "cc/quads/render_pass.h" |
| #include "testing/gtest/include/gtest/gtest.h" |
| #include "ui/gfx/point_conversions.h" |
| #include "ui/gfx/rect.h" |
| #include "ui/gfx/rect_conversions.h" |
| #include "ui/gfx/size_conversions.h" |
| |
| namespace cc { |
| |
| // Align with expected and actual output. |
| const char* LayerTestCommon::quad_string = " Quad: "; |
| |
| static bool CanRectFBeSafelyRoundedToRect(gfx::RectF r) { |
| // Ensure that range of float values is not beyond integer range. |
| if (!r.IsExpressibleAsRect()) |
| return false; |
| |
| // Ensure that the values are actually integers. |
| if (gfx::ToFlooredPoint(r.origin()) == r.origin() && |
| gfx::ToFlooredSize(r.size()) == r.size()) |
| return true; |
| |
| return false; |
| } |
| |
| void LayerTestCommon::VerifyQuadsExactlyCoverRect(const cc::QuadList& quads, |
| gfx::Rect rect) { |
| cc::Region remaining = rect; |
| |
| for (size_t i = 0; i < quads.size(); ++i) { |
| cc::DrawQuad* quad = quads[i]; |
| gfx::RectF quad_rectf = |
| cc::MathUtil::MapClippedRect(quad->quadTransform(), |
| gfx::RectF(quad->rect)); |
| |
| // Before testing for exact coverage in the integer world, assert that |
| // rounding will not round the rect incorrectly. |
| ASSERT_TRUE(CanRectFBeSafelyRoundedToRect(quad_rectf)); |
| |
| gfx::Rect quad_rect = gfx::ToEnclosingRect(quad_rectf); |
| |
| EXPECT_TRUE(rect.Contains(quad_rect)) << quad_string << i; |
| EXPECT_TRUE(remaining.Contains(quad_rect)) << quad_string << i; |
| remaining.Subtract(quad_rect); |
| } |
| |
| EXPECT_TRUE(remaining.IsEmpty()); |
| } |
| |
| } // namespace cc |