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// Copyright (c) the JPEG XL Project Authors. All rights reserved.
//
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
#ifndef LIB_JXL_TEST_IMAGE_H_
#define LIB_JXL_TEST_IMAGE_H_
#include <jxl/codestream_header.h>
#include <jxl/types.h>
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>
#include "lib/extras/packed_image.h"
namespace jxl {
namespace test {
// Returns a test image with some autogenerated pixel content, using 16 bits per
// channel, big endian order, 1 to 4 channels
// The seed parameter allows to create images with different pixel content.
std::vector<uint8_t> GetSomeTestImage(size_t xsize, size_t ysize,
size_t num_channels, uint16_t seed);
class TestImage {
public:
TestImage();
extras::PackedPixelFile& ppf() { return ppf_; }
TestImage& DecodeFromBytes(const std::vector<uint8_t>& bytes);
TestImage& ClearMetadata();
TestImage& SetDimensions(size_t xsize, size_t ysize);
TestImage& SetChannels(size_t num_channels);
// Sets the same bit depth on color, alpha and all extra channels.
TestImage& SetAllBitDepths(uint32_t bits_per_sample,
uint32_t exponent_bits_per_sample = 0);
TestImage& SetDataType(JxlDataType data_type);
TestImage& SetEndianness(JxlEndianness endianness);
TestImage& SetRowAlignment(size_t align);
TestImage& SetColorEncoding(const std::string& description);
TestImage& CoalesceGIFAnimationWithAlpha();
class Frame {
public:
Frame(TestImage* parent, bool is_preview, size_t index);
void ZeroFill();
void RandomFill(uint16_t seed = 177);
void SetValue(size_t y, size_t x, size_t c, float val);
private:
extras::PackedPixelFile& ppf() const { return parent_->ppf(); }
extras::PackedFrame& frame() {
return is_preview_ ? *ppf().preview_frame : ppf().frames[index_];
}
TestImage* parent_;
bool is_preview_;
size_t index_;
};
Frame AddFrame();
Frame AddPreview(size_t xsize, size_t ysize);
private:
extras::PackedPixelFile ppf_;
JxlPixelFormat format_ = {3, JXL_TYPE_UINT8, JXL_LITTLE_ENDIAN, 0};
static void CropLayerInfo(size_t xsize, size_t ysize, JxlLayerInfo* info);
static void CropImage(size_t xsize, size_t ysize, extras::PackedImage* image);
static JxlDataType DefaultDataType(const JxlBasicInfo& info);
};
} // namespace test
} // namespace jxl
#endif // LIB_JXL_TEST_IMAGE_H_
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