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122 lines
4.1 KiB
C++
122 lines
4.1 KiB
C++
/*
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* SDLImage.h, part of VCMI engine
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*
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* Authors: listed in file AUTHORS in main folder
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*
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* License: GNU General Public License v2.0 or later
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* Full text of license available in license.txt file, in main folder
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*
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*/
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#pragma once
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#include "../render/IImage.h"
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#include "../../lib/Point.h"
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VCMI_LIB_NAMESPACE_BEGIN
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class JsonNode;
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VCMI_LIB_NAMESPACE_END
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class CDefFile;
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struct SDL_Surface;
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struct SDL_Palette;
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/*
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* Wrapper around SDL_Surface
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*/
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class SDLImageShared final : public ISharedImage, public std::enable_shared_from_this<SDLImageShared>, boost::noncopyable
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{
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//Surface without empty borders
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SDL_Surface * surf;
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SDL_Palette * originalPalette;
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//size of left and top borders
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Point margins;
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//total size including borders
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Point fullSize;
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//pre scaled image
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int preScaleFactor;
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// Keep the original palette, in order to do color switching operation
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void savePalette();
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void optimizeSurface();
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public:
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//Load image from def file
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SDLImageShared(const CDefFile *data, size_t frame, size_t group=0, int preScaleFactor=1);
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//Load from bitmap file
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SDLImageShared(const ImagePath & filename, int preScaleFactor=1);
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//Create using existing surface, extraRef will increase refcount on SDL_Surface
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SDLImageShared(SDL_Surface * from, int preScaleFactor=1);
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~SDLImageShared();
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void draw(SDL_Surface * where, SDL_Palette * palette, const Point & dest, const Rect * src, const ColorRGBA & colorMultiplier, uint8_t alpha, EImageBlitMode mode) const override;
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void exportBitmap(const boost::filesystem::path & path, SDL_Palette * palette) const override;
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Point dimensions() const override;
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bool isTransparent(const Point & coords) const override;
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std::shared_ptr<IImage> createImageReference(EImageBlitMode mode) const override;
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std::shared_ptr<const ISharedImage> horizontalFlip() const override;
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std::shared_ptr<const ISharedImage> verticalFlip() const override;
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std::shared_ptr<const ISharedImage> scaleInteger(int factor, SDL_Palette * palette) const override;
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std::shared_ptr<const ISharedImage> scaleTo(const Point & size, SDL_Palette * palette) const override;
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friend class SDLImageLoader;
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};
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class SDLImageBase : public IImage, boost::noncopyable
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{
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protected:
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std::shared_ptr<const ISharedImage> image;
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uint8_t alphaValue;
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EImageBlitMode blitMode;
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public:
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SDLImageBase(const std::shared_ptr<const ISharedImage> & image, EImageBlitMode mode);
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bool isTransparent(const Point & coords) const override;
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Point dimensions() const override;
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void setAlpha(uint8_t value) override;
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void setBlitMode(EImageBlitMode mode) override;
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std::shared_ptr<const ISharedImage> getSharedImage() const override;
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};
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class SDLImageIndexed final : public SDLImageBase
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{
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SDL_Palette * currentPalette = nullptr;
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SDL_Palette * originalPalette = nullptr;
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void setShadowTransparency(float factor);
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void preparePalette();
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public:
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SDLImageIndexed(const std::shared_ptr<const ISharedImage> & image, SDL_Palette * palette, EImageBlitMode mode);
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~SDLImageIndexed();
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void draw(SDL_Surface * where, const Point & pos, const Rect * src) const override;
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void setOverlayColor(const ColorRGBA & color) override;
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void playerColored(PlayerColor player) override;
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void shiftPalette(uint32_t firstColorID, uint32_t colorsToMove, uint32_t distanceToMove) override;
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void adjustPalette(const ColorFilter & shifter, uint32_t colorsToSkipMask) override;
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void scaleInteger(int factor) override;
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void scaleTo(const Point & size) override;
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void exportBitmap(const boost::filesystem::path & path) const override;
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};
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class SDLImageRGB final : public SDLImageBase
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{
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public:
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using SDLImageBase::SDLImageBase;
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void draw(SDL_Surface * where, const Point & pos, const Rect * src) const override;
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void setOverlayColor(const ColorRGBA & color) override;
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void playerColored(PlayerColor player) override;
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void shiftPalette(uint32_t firstColorID, uint32_t colorsToMove, uint32_t distanceToMove) override;
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void adjustPalette(const ColorFilter & shifter, uint32_t colorsToSkipMask) override;
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void scaleInteger(int factor) override;
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void scaleTo(const Point & size) override;
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void exportBitmap(const boost::filesystem::path & path) const override;
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};
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