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// 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/layers/append_quads_data.h"
#include "cc/quads/draw_quad.h"
#include "cc/quads/render_pass.h"
#include "cc/test/fake_output_surface.h"
#include "cc/test/mock_occlusion_tracker.h"
#include "cc/trees/layer_tree_host_common.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(const 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 QuadList& quads,
const gfx::Rect& rect) {
Region remaining = rect;
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
gfx::RectF quad_rectf =
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
<< " rect: " << rect.ToString()
<< " quad: " << quad_rect.ToString();
EXPECT_TRUE(remaining.Contains(quad_rect))
<< quad_string << i << " remaining: " << remaining.ToString()
<< " quad: " << quad_rect.ToString();
remaining.Subtract(quad_rect);
}
EXPECT_TRUE(remaining.IsEmpty());
}
// static
void LayerTestCommon::VerifyQuadsCoverRectWithOcclusion(
const QuadList& quads,
const gfx::Rect& rect,
const gfx::Rect& occluded,
size_t* partially_occluded_count) {
// No quad should exist if it's fully occluded.
for (size_t i = 0; i < quads.size(); ++i) {
EXPECT_FALSE(occluded.Contains(quads[i]->visible_rect));
}
// Quads that are fully occluded on one axis only should be shrunken.
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
DCHECK(quad->quadTransform().IsIdentityOrIntegerTranslation());
gfx::Rect target_rect =
MathUtil::MapEnclosingClippedRect(quad->quadTransform(), quad->rect);
gfx::Rect target_visible_rect = MathUtil::MapEnclosingClippedRect(
quad->quadTransform(), quad->visible_rect);
bool fully_occluded_horizontal = target_rect.x() >= occluded.x() &&
target_rect.right() <= occluded.right();
bool fully_occluded_vertical = target_rect.y() >= occluded.y() &&
target_rect.bottom() <= occluded.bottom();
bool should_be_occluded =
target_rect.Intersects(occluded) &&
(fully_occluded_vertical || fully_occluded_horizontal);
if (!should_be_occluded) {
EXPECT_EQ(quad->rect.ToString(), quad->visible_rect.ToString());
} else {
EXPECT_NE(quad->rect.ToString(), quad->visible_rect.ToString());
EXPECT_TRUE(quad->rect.Contains(quad->visible_rect));
++(*partially_occluded_count);
}
}
}
LayerTestCommon::LayerImplTest::LayerImplTest()
: host_(FakeLayerTreeHost::Create()),
root_layer_impl_(LayerImpl::Create(host_->host_impl()->active_tree(), 1)),
render_pass_(RenderPass::Create()) {
scoped_ptr<FakeOutputSurface> output_surface = FakeOutputSurface::Create3d();
host_->host_impl()->InitializeRenderer(
output_surface.PassAs<OutputSurface>());
}
LayerTestCommon::LayerImplTest::~LayerImplTest() {}
void LayerTestCommon::LayerImplTest::CalcDrawProps(
const gfx::Size& viewport_size) {
LayerImplList layer_list;
LayerTreeHostCommon::CalcDrawPropsImplInputsForTesting inputs(
root_layer_impl_.get(), viewport_size, &layer_list);
LayerTreeHostCommon::CalculateDrawProperties(&inputs);
}
void LayerTestCommon::LayerImplTest::AppendQuadsWithOcclusion(
LayerImpl* layer_impl,
const gfx::Rect& occluded) {
AppendQuadsData data;
render_pass_->quad_list.clear();
render_pass_->shared_quad_state_list.clear();
occlusion_tracker_.set_occluded_target_rect(occluded);
layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
layer_impl->AppendQuads(render_pass_.get(), occlusion_tracker_, &data);
layer_impl->DidDraw(resource_provider());
}
void LayerTestCommon::LayerImplTest::AppendQuadsForPassWithOcclusion(
LayerImpl* layer_impl,
const RenderPass::Id& id,
const gfx::Rect& occluded) {
AppendQuadsData data(id);
render_pass_->quad_list.clear();
render_pass_->shared_quad_state_list.clear();
occlusion_tracker_.set_occluded_target_rect(occluded);
layer_impl->WillDraw(DRAW_MODE_HARDWARE, resource_provider());
layer_impl->AppendQuads(render_pass_.get(), occlusion_tracker_, &data);
layer_impl->DidDraw(resource_provider());
}
void LayerTestCommon::LayerImplTest::AppendSurfaceQuadsWithOcclusion(
RenderSurfaceImpl* surface_impl,
const gfx::Rect& occluded) {
AppendQuadsData data;
render_pass_->quad_list.clear();
render_pass_->shared_quad_state_list.clear();
occlusion_tracker_.set_occluded_target_rect_for_contributing_surface(
occluded);
bool for_replica = false;
RenderPass::Id id(1, 1);
surface_impl->AppendQuads(
render_pass_.get(), occlusion_tracker_, &data, for_replica, id);
}
} // namespace cc
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