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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 <stdio.h>
#include "cc/nine_patch_layer_impl.h"
#include "cc/append_quads_data.h"
#include "cc/single_thread_proxy.h"
#include "cc/test/fake_impl_proxy.h"
#include "cc/test/fake_layer_tree_host_impl.h"
#include "cc/test/geometry_test_utils.h"
#include "cc/test/layer_test_common.h"
#include "cc/test/mock_quad_culler.h"
#include "cc/texture_draw_quad.h"
#include "ui/gfx/rect_conversions.h"
#include "ui/gfx/safe_integer_conversions.h"
#include "testing/gmock/include/gmock/gmock.h"
#include "testing/gtest/include/gtest/gtest.h"
#include "ui/gfx/transform.h"
namespace cc {
namespace {
gfx::Rect ToRoundedIntRect(gfx::RectF rect_f) {
return gfx::Rect(gfx::ToRoundedInt(rect_f.x()), gfx::ToRoundedInt(rect_f.y()), gfx::ToRoundedInt(rect_f.width()), gfx::ToRoundedInt(rect_f.height()));
}
TEST(NinePatchLayerImplTest, verifyDrawQuads)
{
// Input is a 100x100 bitmap with a 40x50 aperture at x=20, y=30.
// The bounds of the layer are set to 400x400, so the draw quads
// generated should leave the border width (40) intact.
MockQuadCuller quadCuller;
gfx::Size bitmapSize(100, 100);
gfx::Size layerSize(400, 400);
gfx::Rect visibleContentRect(gfx::Point(), layerSize);
gfx::Rect apertureRect(20, 30, 40, 50);
gfx::Rect scaledApertureNonUniform(20, 30, 340, 350);
FakeImplProxy proxy;
FakeLayerTreeHostImpl hostImpl(&proxy);
scoped_ptr<NinePatchLayerImpl> layer = NinePatchLayerImpl::create(hostImpl.activeTree(), 1);
layer->drawProperties().visible_content_rect = visibleContentRect;
layer->setBounds(layerSize);
layer->setContentBounds(layerSize);
layer->createRenderSurface();
layer->drawProperties().render_target = layer.get();
layer->setLayout(bitmapSize, apertureRect);
layer->setResourceId(1);
// This scale should not affect the generated quad geometry, but only
// the shared draw transform.
gfx::Transform transform;
transform.Scale(10, 10);
layer->drawProperties().target_space_transform = transform;
AppendQuadsData data;
layer->appendQuads(quadCuller, data);
// Verify quad rects
const QuadList& quads = quadCuller.quadList();
EXPECT_EQ(8, quads.size());
Region remaining(visibleContentRect);
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
gfx::Rect quadRect = quad->rect;
EXPECT_TRUE(visibleContentRect.Contains(quadRect)) << i;
EXPECT_TRUE(remaining.Contains(quadRect)) << i;
EXPECT_EQ(transform, quad->quadTransform());
remaining.Subtract(Region(quadRect));
}
EXPECT_RECT_EQ(scaledApertureNonUniform, remaining.bounds());
Region scaledApertureRegion(scaledApertureNonUniform);
EXPECT_EQ(scaledApertureRegion, remaining);
// Verify UV rects
gfx::Rect bitmapRect(gfx::Point(), bitmapSize);
Region texRemaining(bitmapRect);
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
const TextureDrawQuad* texQuad = TextureDrawQuad::MaterialCast(quad);
gfx::RectF texRect = gfx::BoundingRect(texQuad->uv_top_left, texQuad->uv_bottom_right);
texRect.Scale(bitmapSize.width(), bitmapSize.height());
texRemaining.Subtract(Region(ToRoundedIntRect(texRect)));
}
EXPECT_RECT_EQ(apertureRect, texRemaining.bounds());
Region apertureRegion(apertureRect);
EXPECT_EQ(apertureRegion, texRemaining);
}
TEST(NinePatchLayerImplTest, verifyDrawQuadsForSqueezedLayer)
{
// Test with a layer much smaller than the bitmap.
MockQuadCuller quadCuller;
gfx::Size bitmapSize(101, 101);
gfx::Size layerSize(51, 51);
gfx::Rect visibleContentRect(gfx::Point(), layerSize);
gfx::Rect apertureRect(20, 30, 40, 45); // rightWidth: 40, botHeight: 25
FakeImplProxy proxy;
FakeLayerTreeHostImpl hostImpl(&proxy);
scoped_ptr<NinePatchLayerImpl> layer = NinePatchLayerImpl::create(hostImpl.activeTree(), 1);
layer->drawProperties().visible_content_rect = visibleContentRect;
layer->setBounds(layerSize);
layer->setContentBounds(layerSize);
layer->createRenderSurface();
layer->drawProperties().render_target = layer.get();
layer->setLayout(bitmapSize, apertureRect);
layer->setResourceId(1);
AppendQuadsData data;
layer->appendQuads(quadCuller, data);
// Verify corner rects fill the layer and don't overlap
const QuadList& quads = quadCuller.quadList();
EXPECT_EQ(4, quads.size());
Region filled;
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
gfx::Rect quadRect = quad->rect;
EXPECT_FALSE(filled.Intersects(quadRect));
filled.Union(quadRect);
}
Region expectedFull(visibleContentRect);
EXPECT_EQ(expectedFull, filled);
// Verify UV rects cover the corners of the bitmap and the crop is weighted
// proportionately to the relative corner sizes (for uneven apertures).
gfx::Rect bitmapRect(gfx::Point(), bitmapSize);
Region texRemaining(bitmapRect);
for (size_t i = 0; i < quads.size(); ++i) {
DrawQuad* quad = quads[i];
const TextureDrawQuad* texQuad = TextureDrawQuad::MaterialCast(quad);
gfx::RectF texRect = gfx::BoundingRect(texQuad->uv_top_left, texQuad->uv_bottom_right);
texRect.Scale(bitmapSize.width(), bitmapSize.height());
texRemaining.Subtract(Region(ToRoundedIntRect(texRect)));
}
Region expectedRemainingRegion = Region(gfx::Rect(bitmapSize));
expectedRemainingRegion.Subtract(gfx::Rect(0, 0, 17, 28));
expectedRemainingRegion.Subtract(gfx::Rect(67, 0, 34, 28));
expectedRemainingRegion.Subtract(gfx::Rect(0, 78, 17, 23));
expectedRemainingRegion.Subtract(gfx::Rect(67, 78, 34, 23));
EXPECT_EQ(expectedRemainingRegion, texRemaining);
}
} // namespace
} // namespace cc
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