blob: 1d82f583051635f21a313eff72a04554c837fe7a [file] [log] [blame]
/*
* Copyright 2017 Google Inc. All Rights Reserved.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "cobalt/browser/memory_settings/calculations.h"
#include <algorithm>
#include <sstream>
#include <string>
#include <vector>
#include "base/command_line.h"
#include "base/logging.h"
#include "cobalt/browser/memory_settings/build_settings.h"
#include "cobalt/browser/memory_settings/constants.h"
#include "cobalt/browser/memory_settings/test_common.h"
#include "cobalt/browser/switches.h"
#include "starboard/log.h"
#include "starboard/memory.h"
#include "starboard/system.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace cobalt {
namespace browser {
namespace memory_settings {
///////////////////////////////////
//
// WIDTH | HEIGHT
// -------------------------
// 8K: 7,680 x 4,320
// Cinema 4K: 4,096 x 2,160
// 4k/UHD: 3,840 x 2,160
// 2K: 2,560 x 1,440
// WUXGA: 1,920 x 1,200
// 1080p: 1,920 x 1,080
// 720p: 1,280 x 720
// 480p: 640 x 480
enum StandardDisplaySettings {
k8k,
kCinema4k,
kUHD4k,
k2k,
kWUXGA,
k1080p,
k720p,
k480p
};
math::Size GetDimensions(StandardDisplaySettings enum_value) {
switch (enum_value) {
case k8k: {
return math::Size(7680, 4320);
}
case kCinema4k: {
return math::Size(4096, 2160);
}
case kUHD4k: {
return math::Size(3840, 2160);
}
case k2k: {
return math::Size(2560, 1440);
}
case kWUXGA: {
return math::Size(1920, 1200);
}
case k1080p: {
return math::Size(1920, 1080);
}
case k720p: {
return math::Size(1280, 720);
}
case k480p: {
return math::Size(640, 480);
}
}
EXPECT_TRUE(false) << "Should not be reached. Unknown enum_value: "
<< enum_value;
return GetDimensions(k1080p);
}
// Tests the expectation that CalculateImageCacheSize() is a pure function
// (side effect free) and will produce the expected results.
TEST(MemoryCalculations, CalculateImageCacheSize) {
EXPECT_EQ(kMinImageCacheSize, CalculateImageCacheSize(GetDimensions(k720p)));
EXPECT_EQ(32 * 1024 * 1024, // 32MB.
CalculateImageCacheSize(GetDimensions(k1080p)));
EXPECT_EQ(kMaxImageCacheSize, CalculateImageCacheSize(GetDimensions(kUHD4k)));
// Expect that the floor is hit for smaller values.
EXPECT_EQ(kMinImageCacheSize, CalculateImageCacheSize(GetDimensions(k480p)));
// Expect that the ceiling is hit for larger values.
EXPECT_EQ(kMaxImageCacheSize,
CalculateImageCacheSize(GetDimensions(kCinema4k)));
EXPECT_EQ(kMaxImageCacheSize, CalculateImageCacheSize(GetDimensions(k8k)));
}
// Tests the expectation that CalculateSkiaAtlasTextureSize() is a pure
// function (side effect free) and will produce expected results.
TEST(MemoryCalculations, CalculateSkiaGlyphAtlasTextureSize) {
math::Size ui_dimensions;
TextureDimensions atlas_texture_size;
// Test that the small resolution of 480p produces a texture atlas
// that is minimal.
ui_dimensions = GetDimensions(k480p);
atlas_texture_size = CalculateSkiaGlyphAtlasTextureSize(ui_dimensions);
EXPECT_EQ(kMinSkiaGlyphTextureAtlasWidth, atlas_texture_size.width());
EXPECT_EQ(kMinSkiaGlyphTextureAtlasHeight, atlas_texture_size.height());
// Test that expected resolution of 1080p produces a 2048x2048
// atlas texture.
ui_dimensions = GetDimensions(k1080p);
atlas_texture_size = CalculateSkiaGlyphAtlasTextureSize(ui_dimensions);
EXPECT_EQ(2048, atlas_texture_size.width());
EXPECT_EQ(2048, atlas_texture_size.height());
// Test that expected resolution of 4k produces a 8192x4096
// atlas texture.
ui_dimensions = GetDimensions(kUHD4k);
atlas_texture_size = CalculateSkiaGlyphAtlasTextureSize(ui_dimensions);
EXPECT_EQ(8192, atlas_texture_size.width());
EXPECT_EQ(4096, atlas_texture_size.height());
// Test that ultra-high 8k resolution produces expected results.
ui_dimensions = GetDimensions(k8k);
atlas_texture_size = CalculateSkiaGlyphAtlasTextureSize(ui_dimensions);
EXPECT_EQ(16384, atlas_texture_size.width());
EXPECT_EQ(16384, atlas_texture_size.height());
}
TEST(MemoryCalculations, CalculateSoftwareSurfaceCacheSizeInBytes) {
math::Size ui_resolution = GetDimensions(k720p);
// Expect that a 720p resolution produces a 4mb SoftwareSurfaceCache.
EXPECT_EQ(4 * 1024 * 1024,
CalculateSoftwareSurfaceCacheSizeInBytes(ui_resolution));
ui_resolution = GetDimensions(k1080p);
// Expect that a 1080p resolution produces a 9mb SoftwareSurfaceCache.
EXPECT_EQ(9 * 1024 * 1024,
CalculateSoftwareSurfaceCacheSizeInBytes(ui_resolution));
}
} // namespace memory_settings
} // namespace browser
} // namespace cobalt