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// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CC_TILES_IMAGE_DECODE_CACHE_UTILS_CC_
#define CC_TILES_IMAGE_DECODE_CACHE_UTILS_CC_
#include "cc/tiles/image_decode_cache_utils.h"
#include "base/check.h"
#include "cc/paint/paint_flags.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "third_party/skia/include/core/SkImageInfo.h"
#include "third_party/skia/include/core/SkPixmap.h"
#if !BUILDFLAG(IS_ANDROID)
#include "base/system/sys_info.h"
#endif
namespace cc {
// static
bool ImageDecodeCacheUtils::ShouldEvictCaches(
base::MemoryPressureListener::MemoryPressureLevel memory_pressure_level) {
switch (memory_pressure_level) {
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_NONE:
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_MODERATE:
return false;
case base::MemoryPressureListener::MEMORY_PRESSURE_LEVEL_CRITICAL:
return true;
}
NOTREACHED();
}
// static
size_t ImageDecodeCacheUtils::GetWorkingSetBytesForImageDecode(
bool for_renderer) {
size_t decoded_image_working_set_budget_bytes = 128 * 1024 * 1024;
#if !BUILDFLAG(IS_ANDROID)
if (for_renderer) {
const bool using_low_memory_policy = base::SysInfo::IsLowEndDevice();
// If there's over 4GB of RAM, increase the working set size to 256MB for
// both gpu and software.
const int kImageDecodeMemoryThresholdMB = 4 * 1024;
if (using_low_memory_policy) {
decoded_image_working_set_budget_bytes = 32 * 1024 * 1024;
} else if (base::SysInfo::AmountOfPhysicalMemoryMB() >=
kImageDecodeMemoryThresholdMB) {
decoded_image_working_set_budget_bytes = 256 * 1024 * 1024;
}
}
#endif // !BUILDFLAG(IS_ANDROID)
return decoded_image_working_set_budget_bytes;
}
} // namespace cc
#endif // CC_TILES_IMAGE_DECODE_CACHE_UTILS_CC_
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