OpenTTD Source
20241108-master-g80f628063a
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The most trivial 32 bpp blitter (without palette animation). More...
#include <32bpp_simple.hpp>
Data Structures | |
struct | Pixel |
Public Member Functions | |
void | Draw (Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) override |
Draw an image to the screen, given an amount of params defined above. | |
void | DrawColourMappingRect (void *dst, int width, int height, PaletteID pal) override |
Draw a colourtable to the screen. More... | |
Sprite * | Encode (const SpriteLoader::SpriteCollection &sprite, SpriteAllocator &allocator) override |
Convert a sprite from the loader to our own format. | |
std::string_view | GetName () override |
Get the name of the blitter, the same as the Factory-instance returns. | |
Public Member Functions inherited from Blitter_32bppBase | |
uint8_t | GetScreenDepth () override |
Get the screen depth this blitter works for. More... | |
void * | MoveTo (void *video, int x, int y) override |
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_t colour) override |
Draw a pixel with a given colour on the video-buffer. More... | |
void | DrawLine (void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8_t colour, int width, int dash) override |
Draw a line with a given colour. More... | |
void | DrawRect (void *video, int width, int height, uint8_t colour) override |
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) override |
Copy from a buffer to the screen. More... | |
void | CopyToBuffer (const void *video, void *dst, int width, int height) override |
Copy from the screen to a buffer. More... | |
void | CopyImageToBuffer (const void *video, void *dst, int width, int height, int dst_pitch) override |
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) override |
Scroll the videobuffer some 'x' and 'y' value. More... | |
size_t | BufferSize (uint width, uint height) override |
Calculate how much memory there is needed for an image of this size in the video-buffer. More... | |
void | PaletteAnimate (const Palette &palette) override |
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 () override |
Check if the blitter uses palette animation at all. More... | |
Public Member Functions inherited from Blitter | |
bool | Is32BppSupported () override |
Can the sprite encoder make use of RGBA sprites? | |
virtual bool | NeedsAnimationBuffer () |
Does this blitter require a separate animation buffer from the video backend? | |
virtual void | PostResize () |
Post resize event. | |
template<typename SetPixelT > | |
void | DrawLineGeneric (int x, int y, int x2, int y2, int screen_width, int screen_height, int width, int dash, SetPixelT set_pixel) |
Public Member Functions inherited from SpriteEncoder | |
virtual uint | GetSpriteAlignment () |
Get the value which the height and width on a sprite have to be aligned by. More... | |
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_t | MakeDark (uint8_t r, uint8_t g, uint8_t b) |
Make a colour dark grey, for specialized 32bpp remapping. More... | |
static Colour | MakeDark (Colour colour) |
Make a colour dark grey, for specialized 32bpp remapping. More... | |
static Colour | MakeGrey (Colour colour) |
Make a colour grey - based. More... | |
static Colour | ReallyAdjustBrightness (Colour colour, uint8_t brightness) |
static Colour | AdjustBrightness (Colour colour, uint8_t brightness) |
static uint8_t | GetColourBrightness (Colour colour) |
Static Public Attributes inherited from Blitter_32bppBase | |
static const int | DEFAULT_BRIGHTNESS = 128 |
The most trivial 32 bpp blitter (without palette animation).
Definition at line 17 of file 32bpp_simple.hpp.
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overridevirtual |
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.
dst | the destination pointer (video-buffer). |
width | the width of the buffer. |
height | the height of the buffer. |
pal | the palette to use. |
Implements Blitter.
Reimplemented in Blitter_40bppAnim.
Definition at line 90 of file 32bpp_simple.cpp.
References Blitter_32bppBase::MakeTransparent(), and PALETTE_TO_TRANSPARENT.
Referenced by Blitter_32bppAnim::DrawColourMappingRect(), and Blitter_40bppAnim::DrawColourMappingRect().