193 lines
7.9 KiB
C++
193 lines
7.9 KiB
C++
// Copyright (c) 2016 Marshall A. Greenblatt. All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without
|
|
// modification, are permitted provided that the following conditions are
|
|
// met:
|
|
//
|
|
// * Redistributions of source code must retain the above copyright
|
|
// notice, this list of conditions and the following disclaimer.
|
|
// * Redistributions in binary form must reproduce the above
|
|
// copyright notice, this list of conditions and the following disclaimer
|
|
// in the documentation and/or other materials provided with the
|
|
// distribution.
|
|
// * Neither the name of Google Inc. nor the name Chromium Embedded
|
|
// Framework nor the names of its contributors may be used to endorse
|
|
// or promote products derived from this software without specific prior
|
|
// written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
|
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
|
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
|
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
|
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
|
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
//
|
|
// ---------------------------------------------------------------------------
|
|
//
|
|
// The contents of this file must follow a specific format in order to
|
|
// support the CEF translator tool. See the translator.README.txt file in the
|
|
// tools directory for more information.
|
|
//
|
|
|
|
#ifndef CEF_INCLUDE_CEF_IMAGE_H_
|
|
#define CEF_INCLUDE_CEF_IMAGE_H_
|
|
#pragma once
|
|
|
|
#include "include/cef_base.h"
|
|
#include "include/cef_values.h"
|
|
|
|
///
|
|
/// Container for a single image represented at different scale factors. All
|
|
/// image representations should be the same size in density independent pixel
|
|
/// (DIP) units. For example, if the image at scale factor 1.0 is 100x100 pixels
|
|
/// then the image at scale factor 2.0 should be 200x200 pixels -- both images
|
|
/// will display with a DIP size of 100x100 units. The methods of this class can
|
|
/// be called on any browser process thread.
|
|
///
|
|
/*--cef(source=library)--*/
|
|
class CefImage : public virtual CefBaseRefCounted {
|
|
public:
|
|
///
|
|
/// Create a new CefImage. It will initially be empty. Use the Add*() methods
|
|
/// to add representations at different scale factors.
|
|
///
|
|
/*--cef()--*/
|
|
static CefRefPtr<CefImage> CreateImage();
|
|
|
|
///
|
|
/// Returns true if this Image is empty.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool IsEmpty() = 0;
|
|
|
|
///
|
|
/// Returns true if this Image and |that| Image share the same underlying
|
|
/// storage. Will also return true if both images are empty.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool IsSame(CefRefPtr<CefImage> that) = 0;
|
|
|
|
///
|
|
/// Add a bitmap image representation for |scale_factor|. Only 32-bit
|
|
/// RGBA/BGRA formats are supported. |pixel_width| and |pixel_height| are the
|
|
/// bitmap representation size in pixel coordinates. |pixel_data| is the array
|
|
/// of pixel data and should be |pixel_width| x |pixel_height| x 4 bytes in
|
|
/// size. |color_type| and |alpha_type| values specify the pixel format.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool AddBitmap(float scale_factor,
|
|
int pixel_width,
|
|
int pixel_height,
|
|
cef_color_type_t color_type,
|
|
cef_alpha_type_t alpha_type,
|
|
const void* pixel_data,
|
|
size_t pixel_data_size) = 0;
|
|
|
|
///
|
|
/// Add a PNG image representation for |scale_factor|. |png_data| is the image
|
|
/// data of size |png_data_size|. Any alpha transparency in the PNG data will
|
|
/// be maintained.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool AddPNG(float scale_factor,
|
|
const void* png_data,
|
|
size_t png_data_size) = 0;
|
|
|
|
///
|
|
/// Create a JPEG image representation for |scale_factor|. |jpeg_data| is the
|
|
/// image data of size |jpeg_data_size|. The JPEG format does not support
|
|
/// transparency so the alpha byte will be set to 0xFF for all pixels.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool AddJPEG(float scale_factor,
|
|
const void* jpeg_data,
|
|
size_t jpeg_data_size) = 0;
|
|
|
|
///
|
|
/// Returns the image width in density independent pixel (DIP) units.
|
|
///
|
|
/*--cef()--*/
|
|
virtual size_t GetWidth() = 0;
|
|
|
|
///
|
|
/// Returns the image height in density independent pixel (DIP) units.
|
|
///
|
|
/*--cef()--*/
|
|
virtual size_t GetHeight() = 0;
|
|
|
|
///
|
|
/// Returns true if this image contains a representation for |scale_factor|.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool HasRepresentation(float scale_factor) = 0;
|
|
|
|
///
|
|
/// Removes the representation for |scale_factor|. Returns true on success.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool RemoveRepresentation(float scale_factor) = 0;
|
|
|
|
///
|
|
/// Returns information for the representation that most closely matches
|
|
/// |scale_factor|. |actual_scale_factor| is the actual scale factor for the
|
|
/// representation. |pixel_width| and |pixel_height| are the representation
|
|
/// size in pixel coordinates. Returns true on success.
|
|
///
|
|
/*--cef()--*/
|
|
virtual bool GetRepresentationInfo(float scale_factor,
|
|
float& actual_scale_factor,
|
|
int& pixel_width,
|
|
int& pixel_height) = 0;
|
|
|
|
///
|
|
/// Returns the bitmap representation that most closely matches
|
|
/// |scale_factor|. Only 32-bit RGBA/BGRA formats are supported. |color_type|
|
|
/// and |alpha_type| values specify the desired output pixel format.
|
|
/// |pixel_width| and |pixel_height| are the output representation size in
|
|
/// pixel coordinates. Returns a CefBinaryValue containing the pixel data on
|
|
/// success or NULL on failure.
|
|
///
|
|
/*--cef()--*/
|
|
virtual CefRefPtr<CefBinaryValue> GetAsBitmap(float scale_factor,
|
|
cef_color_type_t color_type,
|
|
cef_alpha_type_t alpha_type,
|
|
int& pixel_width,
|
|
int& pixel_height) = 0;
|
|
|
|
///
|
|
/// Returns the PNG representation that most closely matches |scale_factor|.
|
|
/// If |with_transparency| is true any alpha transparency in the image will be
|
|
/// represented in the resulting PNG data. |pixel_width| and |pixel_height|
|
|
/// are the output representation size in pixel coordinates. Returns a
|
|
/// CefBinaryValue containing the PNG image data on success or NULL on
|
|
/// failure.
|
|
///
|
|
/*--cef()--*/
|
|
virtual CefRefPtr<CefBinaryValue> GetAsPNG(float scale_factor,
|
|
bool with_transparency,
|
|
int& pixel_width,
|
|
int& pixel_height) = 0;
|
|
|
|
///
|
|
/// Returns the JPEG representation that most closely matches |scale_factor|.
|
|
/// |quality| determines the compression level with 0 == lowest and 100 ==
|
|
/// highest. The JPEG format does not support alpha transparency and the alpha
|
|
/// channel, if any, will be discarded. |pixel_width| and |pixel_height| are
|
|
/// the output representation size in pixel coordinates. Returns a
|
|
/// CefBinaryValue containing the JPEG image data on success or NULL on
|
|
/// failure.
|
|
///
|
|
/*--cef()--*/
|
|
virtual CefRefPtr<CefBinaryValue> GetAsJPEG(float scale_factor,
|
|
int quality,
|
|
int& pixel_width,
|
|
int& pixel_height) = 0;
|
|
};
|
|
|
|
#endif // CEF_INCLUDE_CEF_IMAGE_H_
|