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/*
* Copyright (C) 2005-2018 Team Kodi
* This file is part of Kodi - https://kodi.tv
*
* SPDX-License-Identifier: GPL-2.0-or-later
* See LICENSES/README.md for more information.
*/
#pragma once
#include "pictures/PictureScalingAlgorithm.h"
#include "utils/Job.h"
#include <cstddef>
#include <cstdint>
#include <string>
#include <vector>
extern "C"
{
#include <libavutil/pixfmt.h>
}
class CTexture;
class CPicture
{
public:
static bool GetThumbnailFromSurface(const unsigned char* buffer, int width, int height, int stride, const std::string &thumbFile, uint8_t* &result, size_t& result_size);
static bool CreateThumbnailFromSurface(const unsigned char* buffer, int width, int height, int stride, const std::string &thumbFile);
/*! \brief Create a tiled thumb of the given files
\param files the files to create the thumb from
\param thumb the filename of the thumb
*/
static bool CreateTiledThumb(const std::vector<std::string> &files, const std::string &thumb);
static bool ResizeTexture(
const std::string& image,
CTexture* texture,
uint32_t& dest_width,
uint32_t& dest_height,
uint8_t*& result,
size_t& result_size,
CPictureScalingAlgorithm::Algorithm scalingAlgorithm = CPictureScalingAlgorithm::NoAlgorithm);
static bool ResizeTexture(const std::string &image, uint8_t *pixels, uint32_t width, uint32_t height, uint32_t pitch,
uint32_t &dest_width, uint32_t &dest_height, uint8_t* &result, size_t& result_size,
CPictureScalingAlgorithm::Algorithm scalingAlgorithm = CPictureScalingAlgorithm::NoAlgorithm);
/*! \brief Cache a texture, resizing, rotating and flipping as needed, and saving as a JPG or PNG
\param texture a pointer to a CTexture
\param dest_width [in/out] maximum width in pixels of cached version - replaced with actual cached width
\param dest_height [in/out] maximum height in pixels of cached version - replaced with actual cached height
\param dest the output cache file
\return true if successful, false otherwise
*/
static bool CacheTexture(
CTexture* texture,
uint32_t& dest_width,
uint32_t& dest_height,
const std::string& dest,
CPictureScalingAlgorithm::Algorithm scalingAlgorithm = CPictureScalingAlgorithm::NoAlgorithm);
static bool CacheTexture(uint8_t *pixels, uint32_t width, uint32_t height, uint32_t pitch, int orientation,
uint32_t &dest_width, uint32_t &dest_height, const std::string &dest,
CPictureScalingAlgorithm::Algorithm scalingAlgorithm = CPictureScalingAlgorithm::NoAlgorithm);
static void GetScale(unsigned int width, unsigned int height, unsigned int &out_width, unsigned int &out_height);
static bool ScaleImage(
uint8_t* in_pixels,
unsigned int in_width,
unsigned int in_height,
unsigned int in_pitch,
AVPixelFormat in_format,
uint8_t* out_pixels,
unsigned int out_width,
unsigned int out_height,
unsigned int out_pitch,
AVPixelFormat out_format,
CPictureScalingAlgorithm::Algorithm scalingAlgorithm = CPictureScalingAlgorithm::NoAlgorithm);
private:
static bool OrientateImage(uint32_t*& pixels,
unsigned int& width,
unsigned int& height,
int orientation,
unsigned int& stridePixels);
static bool FlipHorizontal(uint32_t*& pixels,
const unsigned int& width,
const unsigned int& height,
const unsigned int& stridePixels);
static bool FlipVertical(uint32_t*& pixels,
const unsigned int& width,
const unsigned int& height,
const unsigned int& stridePixels);
static bool Rotate90CCW(uint32_t*& pixels,
unsigned int& width,
unsigned int& height,
unsigned int& stridePixels);
static bool Rotate270CCW(uint32_t*& pixels,
unsigned int& width,
unsigned int& height,
unsigned int& stridePixels);
static bool Rotate180CCW(uint32_t*& pixels,
const unsigned int& width,
const unsigned int& height,
const unsigned int& stridePixels);
static bool Transpose(uint32_t*& pixels,
unsigned int& width,
unsigned int& height,
unsigned int& width_aligned);
static bool TransposeOffAxis(uint32_t*& pixels,
unsigned int& width,
unsigned int& height,
unsigned int& stridePixels);
};
//this class calls CreateThumbnailFromSurface in a CJob, so a png file can be written without halting the render thread
class CThumbnailWriter : public CJob
{
public:
//WARNING: buffer is deleted from DoWork()
CThumbnailWriter(unsigned char* buffer, int width, int height, int stride, const std::string& thumbFile);
~CThumbnailWriter() override;
bool DoWork() override;
private:
unsigned char* m_buffer;
int m_width;
int m_height;
int m_stride;
std::string m_thumbFile;
};
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