SDL3pp
A slim C++ wrapper for SDL3
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SDL::SurfaceBase Struct Reference

Base class to Surface. More...

Inheritance diagram for SDL::SurfaceBase:
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Public Member Functions

constexpr operator SurfaceConstRef () const noexcept
 Converts to SurfaceConstRef.
void Destroy ()
 Free this surface.
constexpr bool MustLock () const
 Evaluates to true if the surface needs to be locked before access.
PropertiesRef GetProperties () const
 Get the properties associated with a surface.
void SetColorspace (Colorspace colorspace)
 Set the colorspace used by a surface.
Colorspace GetColorspace () const
 Get the colorspace used by a surface.
Palette CreatePalette ()
 Create a palette and associate it with a surface.
void SetPalette (PaletteRef palette)
 Set the palette used by a surface.
Palette GetPalette () const
 Get the palette used by a surface.
void AddAlternateImage (SurfaceRef image)
 Add an alternate version of a surface.
bool HasAlternateImages () const
 Return whether a surface has alternate versions available.
OwnArray< SurfaceRawGetImages () const
 Get an array including all versions of a surface.
void RemoveAlternateImages ()
 Remove all alternate versions of a surface.
SurfaceLock Lock ()
 Set up a surface for directly accessing the pixels.
void Unlock (SurfaceLock &&lock)
 Release a surface after directly accessing the pixels.
void SaveBMP_IO (IOStreamRef dst, bool closeio=false) const
 Save a surface to a seekable SDL data stream in BMP format.
void SaveBMP (StringParam file) const
 Save a surface to a file in BMP format.
void SavePNG_IO (IOStreamRef dst, bool closeio=false) const
 Save a surface to a seekable SDL data stream in PNG format.
void SavePNG (StringParam file) const
 Save a surface to a file in PNG format.
void SetRLE (bool enabled)
 Set the RLE acceleration hint for a surface.
bool HasRLE () const
 Returns whether the surface is RLE enabled.
void SetColorKey (std::optional< Uint32 > key)
 Set the color key (transparent pixel) in a surface.
void ClearColorKey ()
 Unset the color key (transparent pixel) in a surface.
bool HasColorKey () const
 Returns whether the surface has a color key.
std::optional< Uint32GetColorKey () const
 Get the color key (transparent pixel) for a surface.
void SetColorMod (Uint8 r, Uint8 g, Uint8 b)
 Set an additional color value multiplied into blit operations.
void GetColorMod (Uint8 *r, Uint8 *g, Uint8 *b) const
 Get the additional color value multiplied into blit operations.
void SetAlphaMod (Uint8 alpha)
 Set an additional alpha value used in blit operations.
Uint8 GetAlphaMod () const
 Get the additional alpha value used in blit operations.
void SetMod (Color color)
 Set an additional color and alpha value multiplied into blit operations.
Color GetMod () const
 Get the additional color and alpha value multiplied into blit operations.
void SetBlendMode (BlendMode blendMode)
 Set the blend mode used for blit operations.
BlendMode GetBlendMode () const
 Get the blend mode used for blit operations.
bool SetClipRect (OptionalRef< const RectRaw > rect)
 Set the clipping rectangle for a surface.
void ResetClipRect ()
 Disable the clipping rectangle for a surface.
Rect GetClipRect () const
 Get the clipping rectangle for a surface.
void Flip (FlipMode flip)
 Flip a surface vertically or horizontally.
Surface Rotate (float angle)
 Return a copy of a surface rotated clockwise a number of degrees.
Surface Duplicate () const
 Creates a new surface identical to the existing surface.
Surface Scale (const PointRaw &size, ScaleMode scaleMode) const
 Creates a new surface identical to the existing surface, scaled to the desired size.
Surface Convert (PixelFormat format) const
 Copy an existing surface to a new surface of the specified format.
Surface Convert (PixelFormat format, PaletteRef palette, Colorspace colorspace, PropertiesRef props) const
 Copy an existing surface to a new surface of the specified format and colorspace.
void PremultiplyAlpha (bool linear)
 Premultiply the alpha in a surface.
void Clear (const FColorRaw &c)
 Clear a surface with a specific color, with floating point precision.
void FillRect (OptionalRef< const RectRaw > rect, Uint32 color)
 Perform a fast fill of a rectangle with a specific color.
void Fill (Uint32 color)
 Perform a fast fill of a rectangle with a specific color.
void FillRects (SpanRef< const RectRaw > rects, Uint32 color)
 Perform a fast fill of a set of rectangles with a specific color.
void Blit (SurfaceRef src, OptionalRef< const RectRaw > srcrect, OptionalRef< const RectRaw > dstrect)
 Performs a fast blit from the source surface to the destination surface with clipping.
void BlitAt (SurfaceRef src, OptionalRef< const RectRaw > srcrect, const PointRaw &dstpos)
 Performs a fast blit from the source surface to the destination surface with clipping.
void BlitUnchecked (SurfaceRef src, const RectRaw &srcrect, const RectRaw &dstrect)
 Perform low-level surface blitting only.
void BlitScaled (SurfaceRef src, OptionalRef< const RectRaw > srcrect, OptionalRef< const RectRaw > dstrect, ScaleMode scaleMode)
 Perform a scaled blit to a destination surface, which may be of a different format.
void BlitUncheckedScaled (SurfaceRef src, const RectRaw &srcrect, const RectRaw &dstrect, ScaleMode scaleMode)
 Perform low-level surface scaled blitting only.
void Stretch (SurfaceRef src, OptionalRef< RectRaw > srcrect, OptionalRef< RectRaw > dstrect, ScaleMode scaleMode)
 Perform a stretched pixel copy from one surface to another.
void BlitTiled (SurfaceRef src, OptionalRef< const RectRaw > srcrect, OptionalRef< const RectRaw > dstrect)
 Perform a tiled blit to a destination surface, which may be of a different format.
void BlitTiledWithScale (SurfaceRef src, OptionalRef< const RectRaw > srcrect, float scale, ScaleMode scaleMode, OptionalRef< const RectRaw > dstrect)
 Perform a scaled and tiled blit to a destination surface, which may be of a different format.
void Blit9Grid (SurfaceRef src, OptionalRef< const RectRaw > srcrect, int left_width, int right_width, int top_height, int bottom_height, OptionalRef< const RectRaw > dstrect, float scale=1, ScaleMode scaleMode=SCALEMODE_NEAREST)
 Perform a scaled blit using the 9-grid algorithm to a destination surface, which may be of a different format.
Uint32 MapRGB (Uint8 r, Uint8 g, Uint8 b) const
 Map an RGB triple to an opaque pixel value for a surface.
Uint32 MapRGBA (ColorRaw c) const
 Map an RGBA quadruple to a pixel value for a surface.
void ReadPixel (const PointRaw &p, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a) const
 Retrieves a single pixel from a surface.
Color ReadPixel (const PointRaw &p) const
 Retrieves a single pixel from a surface.
void ReadPixelFloat (const PointRaw &p, float *r, float *g, float *b, float *a) const
 Retrieves a single pixel from a surface.
FColor ReadPixelFloat (const PointRaw &p) const
 Retrieves a single pixel from a surface.
void WritePixel (const PointRaw &p, ColorRaw c)
 Writes a single pixel to a surface.
void WritePixelFloat (const PointRaw &p, const FColorRaw &c)
 Writes a single pixel to a surface.
constexpr int GetWidth () const
 Get the width in pixels.
constexpr int GetHeight () const
 Get the height in pixels.
constexpr Point GetSize () const
 Get the size in pixels.
constexpr int GetPitch () const
 Get pitch in bytes.
constexpr PixelFormat GetFormat () const
 Get the pixel format.
constexpr void * GetPixels () const
 Get the pixels.
void Save (StringParam filename) const
 Save an Surface into an image file.
void SaveTyped_IO (IOStreamRef dst, StringParam type, bool closeio=false) const
 Save an Surface into formatted image data, via an IOStream.
constexpr ResourceBaseT ()=default
 Default constructor, creates null/invalid resource.
constexpr ResourceBaseT (RawPointer resource)
 Constructs from resource pointer.
constexpr ResourceBaseT (std::nullptr_t)
 Constructs null/invalid.
constexpr ResourceBaseT (const ResourceBaseT &)=default
 Copy constructor.
constexpr ResourceBaseT (ResourceBaseT &&) noexcept=default
 Move constructor.
Public Member Functions inherited from SDL::ResourceBaseT< SurfaceRaw, SurfaceRawConst >
constexpr ResourceBaseT ()=default
 Default constructor, creates null/invalid resource.
constexpr operator bool () const
 Converts to bool.
constexpr auto operator<=> (const ResourceBaseT &other) const=default
 Comparison.
constexpr RawConstPointer operator-> () const noexcept
 member access to underlying resource pointer.
constexpr RawPointer get () const noexcept
 Retrieves underlying resource pointer.
constexpr RawPointer release () noexcept
 Retrieves underlying resource pointer and clear this.

Additional Inherited Members

Public Types inherited from SDL::ResourceBaseT< SurfaceRaw, SurfaceRawConst >
using RawPointer
 The underlying raw pointer type.
using RawConstPointer
 The underlying const raw pointer type.
Protected Member Functions inherited from SDL::ResourceBaseT< SurfaceRaw, SurfaceRawConst >
constexpr ~ResourceBaseT ()=default
 Destructor.
constexpr ResourceBaseToperator= (const ResourceBaseT &)=default
 Assignment operator.

Detailed Description

Base class to Surface.

See also
Surface

Member Function Documentation

◆ MustLock()

bool SDL::SurfaceBase::MustLock ( ) const
inlineconstexpr

Evaluates to true if the surface needs to be locked before access.

Since
This function is available since SDL 3.2.0.

The documentation for this struct was generated from the following files: