OpenTTD
Data Structures | Public Member Functions
Blitter_32bppSimple Class Reference

The most trivial 32 bpp blitter (without palette animation). More...

#include <32bpp_simple.hpp>

Inheritance diagram for Blitter_32bppSimple:
Blitter_32bppBase Blitter Blitter_32bppOptimized Blitter_32bppAnim

Data Structures

struct  Pixel
 

Public Member Functions

void Draw (Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)
 Draw an image to the screen, given an amount of params defined above.
 
void DrawColourMappingRect (void *dst, int width, int height, PaletteID pal)
 Draw a colourtable to the screen. More...
 
SpriteEncode (const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)
 Convert a sprite from the loader to our own format.
 
const char * GetName ()
 Get the name of the blitter, the same as the Factory-instance returns.
 
- Public Member Functions inherited from Blitter_32bppBase
uint8 GetScreenDepth ()
 Get the screen depth this blitter works for. More...
 
void * MoveTo (void *video, int x, int y)
 Move the destination pointer the requested amount x and y, keeping in mind any pitch and bpp of the renderer. More...
 
void SetPixel (void *video, int x, int y, uint8 colour)
 Draw a pixel with a given colour on the video-buffer. More...
 
void DrawRect (void *video, int width, int height, uint8 colour)
 Make a single horizontal line in a single colour on the video-buffer. More...
 
void CopyFromBuffer (void *video, const void *src, int width, int height)
 Copy from a buffer to the screen. More...
 
void CopyToBuffer (const void *video, void *dst, int width, int height)
 Copy from the screen to a buffer. More...
 
void CopyImageToBuffer (const void *video, void *dst, int width, int height, int dst_pitch)
 Copy from the screen to a buffer in a palette format for 8bpp and RGBA format for 32bpp. More...
 
void ScrollBuffer (void *video, int &left, int &top, int &width, int &height, int scroll_x, int scroll_y)
 Scroll the videobuffer some 'x' and 'y' value. More...
 
int BufferSize (int width, int height)
 Calculate how much memory there is needed for an image of this size in the video-buffer. More...
 
void PaletteAnimate (const Palette &palette)
 Called when the 8bpp palette is changed; you should redraw all pixels on the screen that are equal to the 8bpp palette indexes 'first_dirty' to 'first_dirty + count_dirty'. More...
 
Blitter::PaletteAnimation UsePaletteAnimation ()
 Check if the blitter uses palette animation at all. More...
 
int GetBytesPerPixel ()
 Get how many bytes are needed to store a pixel.
 
- Public Member Functions inherited from Blitter
virtual void DrawLine (void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 colour, int width, int dash=0)
 Draw a line with a given colour. More...
 
virtual void PostResize ()
 Post resize event.
 

Additional Inherited Members

- Public Types inherited from Blitter
enum  PaletteAnimation { PALETTE_ANIMATION_NONE, PALETTE_ANIMATION_VIDEO_BACKEND, PALETTE_ANIMATION_BLITTER }
 Types of palette animation. More...
 
- Static Public Member Functions inherited from Blitter_32bppBase
static Colour LookupColourInPalette (uint index)
 Look up the colour in the current palette.
 
static Colour ComposeColourRGBANoCheck (uint r, uint g, uint b, uint a, Colour current)
 Compose a colour based on RGBA values and the current pixel value.
 
static Colour ComposeColourRGBA (uint r, uint g, uint b, uint a, Colour current)
 Compose a colour based on RGBA values and the current pixel value. More...
 
static Colour ComposeColourPANoCheck (Colour colour, uint a, Colour current)
 Compose a colour based on Pixel value, alpha value, and the current pixel value.
 
static Colour ComposeColourPA (Colour colour, uint a, Colour current)
 Compose a colour based on Pixel value, alpha value, and the current pixel value. More...
 
static Colour MakeTransparent (Colour colour, uint nom, uint denom=256)
 Make a pixel looks like it is transparent. More...
 
static uint8 MakeDark (uint8 r, uint8 g, uint8 b)
 Make a colour dark grey, for specialized 32bpp remapping. More...
 
static Colour MakeGrey (Colour colour)
 Make a colour grey - based. More...
 
static Colour AdjustBrightness (Colour colour, uint8 brightness)
 
- Static Public Attributes inherited from Blitter_32bppBase
static const int DEFAULT_BRIGHTNESS = 128
 

Detailed Description

The most trivial 32 bpp blitter (without palette animation).

Definition at line 19 of file 32bpp_simple.hpp.

Member Function Documentation

◆ DrawColourMappingRect()

void Blitter_32bppSimple::DrawColourMappingRect ( void *  dst,
int  width,
int  height,
PaletteID  pal 
)
virtual

Draw a colourtable to the screen.

This is: the colour of the screen is read and is looked-up in the palette to match a new colour, which then is put on the screen again.

Parameters
dstthe destination pointer (video-buffer).
widththe width of the buffer.
heightthe height of the buffer.
palthe palette to use.

Implements Blitter.

Definition at line 86 of file 32bpp_simple.cpp.


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