OpenTTD
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The optimised 32 bpp blitter with palette animation. More...
#include <32bpp_anim.hpp>
Public Member Functions | |
void | Draw (Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom) |
Draws a sprite to a (screen) buffer. | |
void | DrawColourMappingRect (void *dst, int width, int height, PaletteID pal) |
Draw a colourtable to the screen. | |
void | SetPixel (void *video, int x, int y, uint8 colour) |
Draw a pixel with a given colour on the video-buffer. | |
void | DrawRect (void *video, int width, int height, uint8 colour) |
Make a single horizontal line in a single colour on the video-buffer. | |
void | CopyFromBuffer (void *video, const void *src, int width, int height) |
Copy from a buffer to the screen. | |
void | CopyToBuffer (const void *video, void *dst, int width, int height) |
Copy from the screen to a buffer. | |
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. | |
int | BufferSize (int width, int height) |
Calculate how much memory there is needed for an image of this size in the video-buffer. | |
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'. | |
Blitter::PaletteAnimation | UsePaletteAnimation () |
Check if the blitter uses palette animation at all. | |
const char * | GetName () |
Get the name of the blitter, the same as the Factory-instance returns. | |
int | GetBytesPerPixel () |
Get how many bytes are needed to store a pixel. | |
void | PostResize () |
Post resize event. | |
Colour | LookupColourInPalette (uint index) |
Look up the colour in the current palette. | |
template<BlitterMode mode> | |
void | Draw (const Blitter::BlitterParams *bp, ZoomLevel zoom) |
Draws a sprite to a (screen) buffer. | |
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Sprite * | Encode (const SpriteLoader::Sprite *sprite, AllocatorProc *allocator) |
Convert a sprite from the loader to our own format. |
Protected Attributes | |
uint16 * | anim_buf |
In this buffer we keep track of the 8bpp indexes so we can do palette animation. | |
int | anim_buf_width |
The width of the animation buffer. | |
int | anim_buf_height |
The height of the animation buffer. | |
Palette | palette |
The current palette. |
Additional Inherited Members | |
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enum | PaletteAnimation { PALETTE_ANIMATION_NONE, PALETTE_ANIMATION_VIDEO_BACKEND, PALETTE_ANIMATION_BLITTER } |
Types of palette animation. More... | |
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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. | |
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. | |
static Colour | MakeTransparent (Colour colour, uint nom, uint denom=256) |
Make a pixel looks like it is transparent. | |
static uint8 | MakeDark (uint8 r, uint8 g, uint8 b) |
Make a colour dark grey, for specialized 32bpp remapping. | |
static Colour | MakeGrey (Colour colour) |
Make a colour grey - based. | |
static Colour | AdjustBrightness (Colour colour, uint8 brightness) |
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static const int | DEFAULT_BRIGHTNESS = 128 |
The optimised 32 bpp blitter with palette animation.
Definition at line 18 of file 32bpp_anim.hpp.
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Calculate how much memory there is needed for an image of this size in the video-buffer.
width | The width of the buffer-to-be. |
height | The height of the buffer-to-be. |
Reimplemented from Blitter_32bppBase.
Definition at line 463 of file 32bpp_anim.cpp.
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Copy from a buffer to the screen.
video | The destination pointer (video-buffer). |
src | The buffer from which the data will be read. |
width | The width of the buffer. |
height | The height of the buffer. |
Reimplemented from Blitter_32bppBase.
Definition at line 349 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, anim_buf_width, GB(), LookupColourInPalette(), and PALETTE_ANIM_START.
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Copy from the screen to a buffer.
video | The destination pointer (video-buffer). |
dst | The buffer in which the data will be stored. |
width | The width of the buffer. |
height | The height of the buffer. |
Reimplemented from Blitter_32bppBase.
Definition at line 389 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, and anim_buf_width.
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Draws a sprite to a (screen) buffer.
Calls adequate templated function.
bp | further blitting parameters |
mode | blitter mode |
zoom | zoom level at which we are drawing |
Reimplemented from Blitter_32bppOptimized.
Definition at line 250 of file 32bpp_anim.cpp.
References _screen_disable_anim, BM_BLACK_REMAP, BM_COLOUR_REMAP, BM_CRASH_REMAP, BM_NORMAL, and BM_TRANSPARENT.
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Draws a sprite to a (screen) buffer.
It is templated to allow faster operation.
mode | blitter mode |
bp | further blitting parameters |
zoom | zoom level at which we are drawing |
Reimplemented from Blitter_32bppOptimized.
Definition at line 24 of file 32bpp_anim.cpp.
References Colour::a, anim_buf_width, BM_BLACK_REMAP, BM_COLOUR_REMAP, BM_CRASH_REMAP, BM_TRANSPARENT, Blitter_32bppBase::ComposeColourPANoCheck(), Blitter_32bppBase::ComposeColourRGBA(), Blitter_32bppBase::ComposeColourRGBANoCheck(), Blitter_32bppOptimized::SpriteData::data, Colour::data, Blitter::BlitterParams::dst, GB(), Blitter::BlitterParams::height, Blitter::BlitterParams::left, LookupColourInPalette(), Blitter_32bppBase::MakeDark(), Blitter_32bppBase::MakeTransparent(), Blitter_32bppOptimized::SpriteData::offset, PALETTE_ANIM_START, Blitter::BlitterParams::pitch, Blitter::BlitterParams::remap, Blitter::BlitterParams::skip_left, Blitter::BlitterParams::skip_top, Blitter::BlitterParams::sprite, Blitter::BlitterParams::top, and Blitter::BlitterParams::width.
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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. |
Reimplemented from Blitter_32bppSimple.
Definition at line 268 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, anim_buf_width, DEBUG, Blitter_32bppBase::MakeGrey(), Blitter_32bppBase::MakeTransparent(), PALETTE_NEWSPAPER, and PALETTE_TO_TRANSPARENT.
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Make a single horizontal line in a single colour on the video-buffer.
video | The destination pointer (video-buffer). |
width | The length of the line. |
height | The height of the line. |
colour | A 8bpp mapping colour. |
Reimplemented from Blitter_32bppBase.
Definition at line 320 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, and LookupColourInPalette().
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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'.
palette | The new palette. |
Reimplemented from Blitter_32bppBase.
Definition at line 468 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, anim_buf_height, anim_buf_width, Palette::first_dirty, GB(), VideoDriver::GetInstance(), LookupColourInPalette(), VideoDriver::MakeDirty(), palette, and PALETTE_ANIM_START.
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Scroll the videobuffer some 'x' and 'y' value.
video | The buffer to scroll into. |
left | The left value of the screen to scroll. |
top | The top value of the screen to scroll. |
width | The width of the screen to scroll. |
height | The height of the screen to scroll. |
scroll_x | How much to scroll in X. |
scroll_y | How much to scroll in Y. |
Reimplemented from Blitter_32bppBase.
Definition at line 412 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, and anim_buf_width.
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Draw a pixel with a given colour on the video-buffer.
video | The destination pointer (video-buffer). |
x | The x position within video-buffer. |
y | The y position within video-buffer. |
colour | A 8bpp mapping colour. |
Reimplemented from Blitter_32bppBase.
Definition at line 311 of file 32bpp_anim.cpp.
References _screen_disable_anim, anim_buf, anim_buf_width, and LookupColourInPalette().
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Check if the blitter uses palette animation at all.
Reimplemented from Blitter_32bppBase.
Definition at line 499 of file 32bpp_anim.cpp.
References Blitter::PALETTE_ANIMATION_BLITTER.