conversionutils.h

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#ifndef ION_IMAGE_CONVERSIONUTILS_H_
#define ION_IMAGE_CONVERSIONUTILS_H_


#include <vector>

#include "base/integral_types.h"
#include "ion/base/allocator.h"
#include "ion/gfx/image.h"

namespace ion {
namespace image {

enum ExternalImageFormat {
  kPng
};

ION_API const gfx::ImagePtr ConvertImage(
    const gfx::ImagePtr& image, gfx::Image::Format target_format,
    bool is_wipeable,
    const base::AllocatorPtr& allocator,
    const base::AllocatorPtr& temporary_allocator);

ION_API const gfx::ImagePtr ConvertFromExternalImageData(
    const void* data, size_t data_size, bool flip_vertically, bool is_wipeable,
    const base::AllocatorPtr& allocator);

ION_API bool IsIonRawImageFormat(const void* data, size_t data_size);

ION_API const std::vector<uint8> ConvertToExternalImageData(
    const gfx::ImagePtr& image, ExternalImageFormat external_format,
    bool flip_vertically);

ION_API const gfx::ImagePtr DownsampleImage2x(
    const gfx::ImagePtr& image, bool is_wipeable,
    const base::AllocatorPtr& allocator);

ION_API const gfx::ImagePtr ResizeImage(
    const gfx::ImagePtr& image, uint32 out_width, uint32 out_height,
    bool is_wipeable, const base::AllocatorPtr& allocator);

ION_API void FlipImage(const gfx::ImagePtr& image);

ION_API void FlipImageHorizontally(const gfx::ImagePtr& image);

ION_API void StraightAlphaFromPremultipliedAlpha(const gfx::ImagePtr& image);

}  // namespace image
}  // namespace ion

#endif  // ION_IMAGE_CONVERSIONUTILS_H_