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// Copyright 2019 The PDFium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef PUBLIC_FPDF_THUMBNAIL_H_
#define PUBLIC_FPDF_THUMBNAIL_H_
#include <stdint.h>
// NOLINTNEXTLINE(build/include)
#include "fpdfview.h"
#ifdef __cplusplus
extern "C" {
#endif
// Experimental API.
// Gets the decoded data from the thumbnail of |page| if it exists.
// This only modifies |buffer| if |buflen| less than or equal to the
// size of the decoded data. Returns the size of the decoded
// data or 0 if thumbnail DNE. Optional, pass null to just retrieve
// the size of the buffer needed.
//
// page - handle to a page.
// buffer - buffer for holding the decoded image data.
// buflen - length of the buffer in bytes.
FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFPage_GetDecodedThumbnailData(FPDF_PAGE page,
void* buffer,
unsigned long buflen);
// Experimental API.
// Gets the raw data from the thumbnail of |page| if it exists.
// This only modifies |buffer| if |buflen| is less than or equal to
// the size of the raw data. Returns the size of the raw data or 0
// if thumbnail DNE. Optional, pass null to just retrieve the size
// of the buffer needed.
//
// page - handle to a page.
// buffer - buffer for holding the raw image data.
// buflen - length of the buffer in bytes.
FPDF_EXPORT unsigned long FPDF_CALLCONV
FPDFPage_GetRawThumbnailData(FPDF_PAGE page,
void* buffer,
unsigned long buflen);
// Experimental API.
// Returns the thumbnail of |page| as a FPDF_BITMAP. Returns a nullptr
// if unable to access the thumbnail's stream.
//
// page - handle to a page.
FPDF_EXPORT FPDF_BITMAP FPDF_CALLCONV
FPDFPage_GetThumbnailAsBitmap(FPDF_PAGE page);
#ifdef __cplusplus
}
#endif
#endif // PUBLIC_FPDF_THUMBNAIL_H_