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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_LENS_LENS_BITMAP_PROCESSING_H_
#define COMPONENTS_LENS_LENS_BITMAP_PROCESSING_H_
#include "base/memory/ref_counted_memory.h"
#include "base/memory/scoped_refptr.h"
#include "components/lens/ref_counted_lens_overlay_client_logs.h"
#include "third_party/skia/include/core/SkBitmap.h"
#include "ui/gfx/geometry/size.h"
namespace lens {
// Returns true if the area is larger than the max area AND one of the width OR
// height exceeds the configured max values.
bool ShouldDownscaleSize(const gfx::Size& size,
int max_area,
int max_width,
int max_height);
// Returns the preferred scale for the given original size and target width and
// height.
double GetPreferredScale(const gfx::Size& original_size,
int target_width,
int target_height);
// Returns the preferred size for the given original size and target width and
// height. The preferred size is the original size scaled down to the target
// width and height.
gfx::Size GetPreferredSize(const gfx::Size& original_size,
int target_width,
int target_height);
// Outputs image processing data to the client logs for the downscale phase,
// including the original and downscaled image sizes.
void AddClientLogsForDownscale(
scoped_refptr<lens::RefCountedLensOverlayClientLogs> client_logs,
const SkBitmap& original_image,
const SkBitmap& downscaled_image);
// Outputs image processing data to the client logs for the encode phase,
// including the encoded image size.
void AddClientLogsForEncode(
scoped_refptr<lens::RefCountedLensOverlayClientLogs> client_logs,
scoped_refptr<base::RefCountedBytes> output_bytes);
// Downscales the image to the target width and height. Outputs image processing
// data to the client logs.
SkBitmap DownscaleImage(
const SkBitmap& image,
int target_width,
int target_height,
scoped_refptr<lens::RefCountedLensOverlayClientLogs> client_logs);
// Encodes the image using JPEG. Outputs image processing data to the client
// logs.
bool EncodeImage(
const SkBitmap& image,
int compression_quality,
scoped_refptr<base::RefCountedBytes> output,
scoped_refptr<lens::RefCountedLensOverlayClientLogs> client_logs);
// Encodes the image using JPEG if it is opaque, otherwise uses WebP. Outputs
// image processing data to the client logs.
bool EncodeImageMaybeWithTransparency(
const SkBitmap& image,
int compression_quality,
scoped_refptr<base::RefCountedBytes> output,
scoped_refptr<lens::RefCountedLensOverlayClientLogs> client_logs);
} // namespace lens
#endif // COMPONENTS_LENS_LENS_BITMAP_PROCESSING_H_
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