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LibGfx: Rename GraphicsBitmap.{cpp,h} => Bitmap.{cpp,h}
This commit is contained in:
Andreas Kling
parent
9ac94d393e
commit
c39d44fc2e
46 changed files with 51 additions and 52 deletions
240
Libraries/LibGfx/Bitmap.h
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240
Libraries/LibGfx/Bitmap.h
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/*
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* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Color.h"
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#include "Rect.h"
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#include "Size.h"
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#include <AK/MappedFile.h>
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#include <AK/RefCounted.h>
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#include <AK/RefPtr.h>
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#include <AK/SharedBuffer.h>
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#include <AK/String.h>
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#include <AK/StringView.h>
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namespace Gfx {
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class Bitmap : public RefCounted<Bitmap> {
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public:
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enum class Format {
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Invalid,
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RGB32,
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RGBA32,
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Indexed8
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};
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static NonnullRefPtr<Bitmap> create(Format, const Size&);
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static NonnullRefPtr<Bitmap> create_purgeable(Format, const Size&);
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static NonnullRefPtr<Bitmap> create_wrapper(Format, const Size&, size_t pitch, RGBA32*);
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static RefPtr<Bitmap> load_from_file(const StringView& path);
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static RefPtr<Bitmap> load_from_file(Format, const StringView& path, const Size&);
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static NonnullRefPtr<Bitmap> create_with_shared_buffer(Format, NonnullRefPtr<SharedBuffer>&&, const Size&);
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NonnullRefPtr<Bitmap> to_shareable_bitmap() const;
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~Bitmap();
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RGBA32* scanline(int y);
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const RGBA32* scanline(int y) const;
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u8* bits(int y);
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const u8* bits(int y) const;
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Rect rect() const { return { {}, m_size }; }
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Size size() const { return m_size; }
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int width() const { return m_size.width(); }
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int height() const { return m_size.height(); }
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size_t pitch() const { return m_pitch; }
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int shared_buffer_id() const { return m_shared_buffer ? m_shared_buffer->shared_buffer_id() : -1; }
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SharedBuffer* shared_buffer() { return m_shared_buffer.ptr(); }
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const SharedBuffer* shared_buffer() const { return m_shared_buffer.ptr(); }
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unsigned bpp() const
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{
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switch (m_format) {
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case Format::Indexed8:
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return 8;
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case Format::RGB32:
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case Format::RGBA32:
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return 32;
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default:
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ASSERT_NOT_REACHED();
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case Format::Invalid:
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return 0;
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}
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}
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void fill(Color);
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bool has_alpha_channel() const { return m_format == Format::RGBA32; }
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Format format() const { return m_format; }
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void set_mmap_name(const StringView&);
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size_t size_in_bytes() const { return m_pitch * m_size.height(); }
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Color palette_color(u8 index) const { return Color::from_rgba(m_palette[index]); }
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void set_palette_color(u8 index, Color color) { m_palette[index] = color.value(); }
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template<Format>
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Color get_pixel(int x, int y) const
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{
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(void)x;
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(void)y;
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ASSERT_NOT_REACHED();
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}
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Color get_pixel(int x, int y) const;
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Color get_pixel(const Point& position) const
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{
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return get_pixel(position.x(), position.y());
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}
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template<Format>
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void set_pixel(int x, int y, Color)
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{
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(void)x;
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(void)y;
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ASSERT_NOT_REACHED();
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}
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void set_pixel(int x, int y, Color);
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void set_pixel(const Point& position, Color color)
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{
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set_pixel(position.x(), position.y(), color);
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}
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bool is_purgeable() const { return m_purgeable; }
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bool is_volatile() const { return m_volatile; }
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void set_volatile();
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[[nodiscard]] bool set_nonvolatile();
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private:
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enum class Purgeable { No,
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Yes };
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Bitmap(Format, const Size&, Purgeable);
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Bitmap(Format, const Size&, size_t pitch, RGBA32*);
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Bitmap(Format, const Size&, MappedFile&&);
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Bitmap(Format, NonnullRefPtr<SharedBuffer>&&, const Size&);
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Size m_size;
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RGBA32* m_data { nullptr };
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RGBA32* m_palette { nullptr };
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size_t m_pitch { 0 };
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Format m_format { Format::Invalid };
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bool m_needs_munmap { false };
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bool m_purgeable { false };
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bool m_volatile { false };
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MappedFile m_mapped_file;
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RefPtr<SharedBuffer> m_shared_buffer;
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};
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inline RGBA32* Bitmap::scanline(int y)
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{
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return reinterpret_cast<RGBA32*>((((u8*)m_data) + (y * m_pitch)));
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}
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inline const RGBA32* Bitmap::scanline(int y) const
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{
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return reinterpret_cast<const RGBA32*>((((const u8*)m_data) + (y * m_pitch)));
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}
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inline const u8* Bitmap::bits(int y) const
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{
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return reinterpret_cast<const u8*>(scanline(y));
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}
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inline u8* Bitmap::bits(int y)
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{
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return reinterpret_cast<u8*>(scanline(y));
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}
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template<>
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inline Color Bitmap::get_pixel<Bitmap::Format::RGB32>(int x, int y) const
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{
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return Color::from_rgb(scanline(y)[x]);
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}
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template<>
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inline Color Bitmap::get_pixel<Bitmap::Format::RGBA32>(int x, int y) const
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{
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return Color::from_rgba(scanline(y)[x]);
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}
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template<>
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inline Color Bitmap::get_pixel<Bitmap::Format::Indexed8>(int x, int y) const
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{
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return Color::from_rgba(m_palette[bits(y)[x]]);
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}
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inline Color Bitmap::get_pixel(int x, int y) const
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{
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switch (m_format) {
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case Format::RGB32:
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return get_pixel<Format::RGB32>(x, y);
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case Format::RGBA32:
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return get_pixel<Format::RGBA32>(x, y);
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case Format::Indexed8:
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return get_pixel<Format::Indexed8>(x, y);
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default:
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ASSERT_NOT_REACHED();
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return {};
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}
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}
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template<>
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inline void Bitmap::set_pixel<Bitmap::Format::RGB32>(int x, int y, Color color)
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{
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scanline(y)[x] = color.value();
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}
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template<>
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inline void Bitmap::set_pixel<Bitmap::Format::RGBA32>(int x, int y, Color color)
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{
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scanline(y)[x] = color.value();
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}
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inline void Bitmap::set_pixel(int x, int y, Color color)
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{
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switch (m_format) {
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case Format::RGB32:
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set_pixel<Format::RGB32>(x, y, color);
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break;
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case Format::RGBA32:
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set_pixel<Format::RGBA32>(x, y, color);
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break;
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case Format::Indexed8:
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ASSERT_NOT_REACHED();
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default:
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ASSERT_NOT_REACHED();
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}
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}
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}
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