ladybird/Libraries/LibDraw/PNGLoader.h

#pragma once

#include <LibDraw/GraphicsBitmap.h>
#include <LibDraw/ImageDecoder.h>

RefPtr<GraphicsBitmap> load_png(const StringView& path);
RefPtr<GraphicsBitmap> load_png_from_memory(const u8*, size_t);

struct PNGLoadingContext;

class PNGImageDecoderPlugin final : public ImageDecoderPlugin {
public:
    virtual ~PNGImageDecoderPlugin() override;
    PNGImageDecoderPlugin(const u8*, size_t);

    virtual Size size() override;
    virtual RefPtr<GraphicsBitmap> bitmap() override;
    virtual void set_volatile() override;
    [[nodiscard]] virtual bool set_nonvolatile() override;

private:
    OwnPtr<PNGLoadingContext> m_context;
};
SharedGraphics: Implement a simple PNG decoder. This is extremely unoptimized, but it does successfully load "folder32.png" so it must be at least somewhat correct. :^) 2019-03-21 05:57:42 +03:00			`#pragma once`

LibDraw: Introduce (formerly known as SharedGraphics.) Instead of LibGUI and WindowServer building their own copies of the drawing and graphics code, let's it in a separate LibDraw library. This avoids building the code twice, and will encourage better separation of concerns. :^) 2019-07-18 11:15:00 +03:00			`#include <LibDraw/GraphicsBitmap.h>`
LibDraw: Rename ImageLoader => ImageDecoder ImageLoader was not the right name for this, as there is no loading happening, only decoding. :^) 2019-10-19 20:56:49 +03:00			`#include <LibDraw/ImageDecoder.h>`
SharedGraphics: Implement a simple PNG decoder. This is extremely unoptimized, but it does successfully load "folder32.png" so it must be at least somewhat correct. :^) 2019-03-21 05:57:42 +03:00
AK: Rename RetainPtr => RefPtr and Retained => NonnullRefPtr. 2019-06-21 19:37:47 +03:00			`RefPtr<GraphicsBitmap> load_png(const StringView& path);`
PNGLoader: Add load_png_from_memory method 2019-09-15 17:32:16 +03:00			`RefPtr<GraphicsBitmap> load_png_from_memory(const u8*, size_t);`
LibDraw: Add ImageLoader, a simple abstraction for image loading An ImageLoader is a generic interface for loading encoded image data of any supported format. It has an ImageLoaderPlugin internally that does all the work. This patch adds an initial PNGImageLoaderPlugin that knows how to retrieve the size of a PNG, and the bitmap. The API is divided into size() and bitmap() to facilitate geometry-only decoding. This will be useful in places like LibHTML where we need dimensions for layout purposes but can wait with the bitmap until later. 2019-10-15 22:48:08 +03:00
			`struct PNGLoadingContext;`

LibDraw: Rename ImageLoader => ImageDecoder ImageLoader was not the right name for this, as there is no loading happening, only decoding. :^) 2019-10-19 20:56:49 +03:00			`class PNGImageDecoderPlugin final : public ImageDecoderPlugin {`
LibDraw: Add ImageLoader, a simple abstraction for image loading An ImageLoader is a generic interface for loading encoded image data of any supported format. It has an ImageLoaderPlugin internally that does all the work. This patch adds an initial PNGImageLoaderPlugin that knows how to retrieve the size of a PNG, and the bitmap. The API is divided into size() and bitmap() to facilitate geometry-only decoding. This will be useful in places like LibHTML where we need dimensions for layout purposes but can wait with the bitmap until later. 2019-10-15 22:48:08 +03:00			`public:`
LibDraw: Rename ImageLoader => ImageDecoder ImageLoader was not the right name for this, as there is no loading happening, only decoding. :^) 2019-10-19 20:56:49 +03:00			`virtual ~PNGImageDecoderPlugin() override;`
			`PNGImageDecoderPlugin(const u8*, size_t);`
LibDraw: Add ImageLoader, a simple abstraction for image loading An ImageLoader is a generic interface for loading encoded image data of any supported format. It has an ImageLoaderPlugin internally that does all the work. This patch adds an initial PNGImageLoaderPlugin that knows how to retrieve the size of a PNG, and the bitmap. The API is divided into size() and bitmap() to facilitate geometry-only decoding. This will be useful in places like LibHTML where we need dimensions for layout purposes but can wait with the bitmap until later. 2019-10-15 22:48:08 +03:00
			`virtual Size size() override;`
			`virtual RefPtr<GraphicsBitmap> bitmap() override;`
LibDraw: Create purgeable GraphicsBitmap in the PNG decoder Also add ImageDecoder APIs for controlling the volatile flag. 2019-12-18 22:50:58 +03:00			`virtual void set_volatile() override;`
			`[[nodiscard]] virtual bool set_nonvolatile() override;`
LibDraw: Add ImageLoader, a simple abstraction for image loading An ImageLoader is a generic interface for loading encoded image data of any supported format. It has an ImageLoaderPlugin internally that does all the work. This patch adds an initial PNGImageLoaderPlugin that knows how to retrieve the size of a PNG, and the bitmap. The API is divided into size() and bitmap() to facilitate geometry-only decoding. This will be useful in places like LibHTML where we need dimensions for layout purposes but can wait with the bitmap until later. 2019-10-15 22:48:08 +03:00
			`private:`
			`OwnPtr<PNGLoadingContext> m_context;`
			`};`