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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "cc/layers/texture_layer_impl.h"
#include <stddef.h>
#include "base/functional/bind.h"
#include "cc/test/fake_layer_tree_frame_sink.h"
#include "cc/test/layer_tree_impl_test_base.h"
#include "cc/trees/layer_tree_frame_sink.h"
#include "components/viz/common/gpu/raster_context_provider.h"
#include "components/viz/common/quads/draw_quad.h"
#include "components/viz/common/quads/texture_draw_quad.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cc {
namespace {
void IgnoreCallback(const gpu::SyncToken& sync_token, bool lost) {}
TEST(TextureLayerImplTest, VisibleOpaqueRegion) {
const gfx::Size layer_bounds(100, 100);
const gfx::Rect layer_rect(layer_bounds);
const Region layer_region(layer_rect);
LayerTreeImplTestBase impl;
auto resource = viz::TransferableResource::MakeGpu(
gpu::Mailbox::GenerateForSharedImage(), GL_TEXTURE_2D,
gpu::SyncToken(gpu::CommandBufferNamespace::GPU_IO,
gpu::CommandBufferId::FromUnsafeValue(0x234), 0x456),
layer_bounds, viz::SinglePlaneFormat::kRGBA_8888,
false /* is_overlay_candidate */);
TextureLayerImpl* layer = impl.AddLayer<TextureLayerImpl>();
layer->SetBounds(layer_bounds);
layer->draw_properties().visible_layer_rect = layer_rect;
layer->SetBlendBackgroundColor(true);
layer->SetTransferableResource(resource, base::BindOnce(&IgnoreCallback));
CopyProperties(impl.root_layer(), layer);
// Verify initial conditions.
EXPECT_FALSE(layer->contents_opaque());
EXPECT_EQ(SkColors::kTransparent, layer->background_color());
EXPECT_EQ(Region().ToString(), layer->VisibleOpaqueRegion().ToString());
// Opaque background.
layer->SetBackgroundColor(SkColors::kWhite);
EXPECT_EQ(layer_region.ToString(), layer->VisibleOpaqueRegion().ToString());
// Transparent background.
layer->SetBackgroundColor({1.0f, 1.0f, 1.0f, 0.5f});
EXPECT_EQ(Region().ToString(), layer->VisibleOpaqueRegion().ToString());
}
TEST(TextureLayerImplTest, Occlusion) {
gfx::Size layer_size(1000, 1000);
gfx::Size viewport_size(1000, 1000);
LayerTreeImplTestBase impl;
auto resource = viz::TransferableResource::MakeGpu(
gpu::Mailbox::GenerateForSharedImage(), GL_TEXTURE_2D,
gpu::SyncToken(gpu::CommandBufferNamespace::GPU_IO,
gpu::CommandBufferId::FromUnsafeValue(0x234), 0x456),
layer_size, viz::SinglePlaneFormat::kRGBA_8888,
false /* is_overlay_candidate */);
TextureLayerImpl* texture_layer_impl = impl.AddLayer<TextureLayerImpl>();
texture_layer_impl->SetBounds(layer_size);
texture_layer_impl->SetDrawsContent(true);
texture_layer_impl->SetTransferableResource(resource,
base::BindOnce(&IgnoreCallback));
CopyProperties(impl.root_layer(), texture_layer_impl);
impl.CalcDrawProps(viewport_size);
{
SCOPED_TRACE("No occlusion");
gfx::Rect occluded;
impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect(layer_size));
EXPECT_EQ(1u, impl.quad_list().size());
}
{
SCOPED_TRACE("Full occlusion");
gfx::Rect occluded(texture_layer_impl->visible_layer_rect());
impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
VerifyQuadsExactlyCoverRect(impl.quad_list(), gfx::Rect());
EXPECT_EQ(impl.quad_list().size(), 0u);
}
{
SCOPED_TRACE("Partial occlusion");
gfx::Rect occluded(200, 0, 800, 1000);
impl.AppendQuadsWithOcclusion(texture_layer_impl, occluded);
size_t partially_occluded_count = 0;
VerifyQuadsAreOccluded(impl.quad_list(), occluded,
&partially_occluded_count);
// The layer outputs one quad, which is partially occluded.
EXPECT_EQ(1u, impl.quad_list().size());
EXPECT_EQ(1u, partially_occluded_count);
}
}
} // namespace
} // namespace cc
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