1/*
2 * Copyright (C) 2015 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#include <gtest/gtest.h>
18#include <Rect.h>
19#include <renderstate/OffscreenBufferPool.h>
20
21#include <tests/common/TestUtils.h>
22
23using namespace android::uirenderer;
24
25TEST(OffscreenBuffer, computeIdealDimension) {
26    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(1));
27    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(31));
28    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(33));
29    EXPECT_EQ(64u, OffscreenBuffer::computeIdealDimension(64));
30    EXPECT_EQ(1024u, OffscreenBuffer::computeIdealDimension(1000));
31}
32
33RENDERTHREAD_TEST(OffscreenBuffer, construct) {
34    OffscreenBuffer layer(renderThread.renderState(), Caches::getInstance(), 49u, 149u);
35    EXPECT_EQ(49u, layer.viewportWidth);
36    EXPECT_EQ(149u, layer.viewportHeight);
37
38    EXPECT_EQ(64u, layer.texture.width());
39    EXPECT_EQ(192u, layer.texture.height());
40
41    EXPECT_EQ(64u * 192u * 4u, layer.getSizeInBytes());
42}
43
44RENDERTHREAD_TEST(OffscreenBuffer, getTextureCoordinates) {
45    OffscreenBuffer layerAligned(renderThread.renderState(), Caches::getInstance(), 256u, 256u);
46    EXPECT_EQ(Rect(0, 1, 1, 0),
47            layerAligned.getTextureCoordinates());
48
49    OffscreenBuffer layerUnaligned(renderThread.renderState(), Caches::getInstance(), 200u, 225u);
50    EXPECT_EQ(Rect(0, 225.0f / 256.0f, 200.0f / 256.0f, 0),
51            layerUnaligned.getTextureCoordinates());
52}
53
54RENDERTHREAD_TEST(OffscreenBuffer, dirty) {
55    OffscreenBuffer buffer(renderThread.renderState(), Caches::getInstance(), 256u, 256u);
56    buffer.dirty(Rect(-100, -100, 100, 100));
57    EXPECT_EQ(android::Rect(100, 100), buffer.region.getBounds());
58}
59
60RENDERTHREAD_TEST(OffscreenBufferPool, construct) {
61    OffscreenBufferPool pool;
62    EXPECT_EQ(0u, pool.getCount()) << "pool must be created empty";
63    EXPECT_EQ(0u, pool.getSize()) << "pool must be created empty";
64    EXPECT_EQ((uint32_t) Properties::layerPoolSize, pool.getMaxSize())
65            << "pool must read size from Properties";
66}
67
68RENDERTHREAD_TEST(OffscreenBufferPool, getPutClear) {
69    OffscreenBufferPool pool;
70
71    auto layer = pool.get(renderThread.renderState(), 100u, 200u);
72    EXPECT_EQ(100u, layer->viewportWidth);
73    EXPECT_EQ(200u, layer->viewportHeight);
74
75    ASSERT_LT(layer->getSizeInBytes(), pool.getMaxSize());
76
77    pool.putOrDelete(layer);
78    ASSERT_EQ(layer->getSizeInBytes(), pool.getSize());
79
80    auto layer2 = pool.get(renderThread.renderState(), 102u, 202u);
81    EXPECT_EQ(layer, layer2) << "layer should be recycled";
82    ASSERT_EQ(0u, pool.getSize()) << "pool should have been emptied by removing only layer";
83
84    pool.putOrDelete(layer);
85    EXPECT_EQ(1u, pool.getCount());
86    pool.clear();
87    EXPECT_EQ(0u, pool.getSize());
88    EXPECT_EQ(0u, pool.getCount());
89}
90
91RENDERTHREAD_TEST(OffscreenBufferPool, resize) {
92    OffscreenBufferPool pool;
93
94    auto layer = pool.get(renderThread.renderState(), 64u, 64u);
95    layer->dirty(Rect(64, 64));
96
97    // resize in place
98    ASSERT_EQ(layer, pool.resize(layer, 60u, 55u));
99    EXPECT_TRUE(layer->region.isEmpty()) << "In place resize should clear usage region";
100    EXPECT_EQ(60u, layer->viewportWidth);
101    EXPECT_EQ(55u, layer->viewportHeight);
102    EXPECT_EQ(64u, layer->texture.width());
103    EXPECT_EQ(64u, layer->texture.height());
104
105    // resized to use different object in pool
106    auto layer2 = pool.get(renderThread.renderState(), 128u, 128u);
107    layer2->dirty(Rect(128, 128));
108    EXPECT_FALSE(layer2->region.isEmpty());
109    pool.putOrDelete(layer2);
110    ASSERT_EQ(1u, pool.getCount());
111
112    ASSERT_EQ(layer2, pool.resize(layer, 120u, 125u));
113    EXPECT_TRUE(layer2->region.isEmpty()) << "Swap resize should clear usage region";
114    EXPECT_EQ(120u, layer2->viewportWidth);
115    EXPECT_EQ(125u, layer2->viewportHeight);
116    EXPECT_EQ(128u, layer2->texture.width());
117    EXPECT_EQ(128u, layer2->texture.height());
118
119    // original allocation now only thing in pool
120    EXPECT_EQ(1u, pool.getCount());
121    EXPECT_EQ(layer->getSizeInBytes(), pool.getSize());
122
123    pool.putOrDelete(layer2);
124}
125
126RENDERTHREAD_TEST(OffscreenBufferPool, putAndDestroy) {
127    OffscreenBufferPool pool;
128    // layer too big to return to the pool
129    // Note: this relies on the fact that the pool won't reject based on max texture size
130    auto hugeLayer = pool.get(renderThread.renderState(), pool.getMaxSize() / 64, 64);
131    EXPECT_GT(hugeLayer->getSizeInBytes(), pool.getMaxSize());
132    pool.putOrDelete(hugeLayer);
133    EXPECT_EQ(0u, pool.getCount()); // failed to put (so was destroyed instead)
134}
135
136RENDERTHREAD_TEST(OffscreenBufferPool, clear) {
137    EXPECT_EQ(0, GpuMemoryTracker::getInstanceCount(GpuObjectType::OffscreenBuffer));
138    OffscreenBufferPool pool;
139
140    // Create many buffers, with several at each size
141    std::vector<OffscreenBuffer*> buffers;
142    for (int size = 32; size <= 128; size += 32) {
143        for (int i = 0; i < 10; i++) {
144            buffers.push_back(pool.get(renderThread.renderState(), size, size));
145        }
146    }
147    EXPECT_EQ(0u, pool.getCount()) << "Expect nothing inside";
148    for (auto& buffer : buffers) pool.putOrDelete(buffer);
149    EXPECT_EQ(40u, pool.getCount()) << "Expect all items added";
150    EXPECT_EQ(40, GpuMemoryTracker::getInstanceCount(GpuObjectType::OffscreenBuffer));
151    pool.clear();
152    EXPECT_EQ(0u, pool.getCount()) << "Expect all items cleared";
153
154    EXPECT_EQ(0, GpuMemoryTracker::getInstanceCount(GpuObjectType::OffscreenBuffer));
155}
156