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OpenTTD
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Base for all 32bpp blitters. More...
#include <32bpp_base.hpp>
Public Member Functions | |
| uint8 | GetScreenDepth () |
| Get the screen depth this blitter works for. | |
| 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. | |
| 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 | 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. | |
| 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. | |
| int | GetBytesPerPixel () |
| Get how many bytes are needed to store a pixel. | |
Public Member Functions inherited from Blitter | |
| virtual void | Draw (Blitter::BlitterParams *bp, BlitterMode mode, ZoomLevel zoom)=0 |
| Draw an image to the screen, given an amount of params defined above. | |
| virtual void | DrawColourMappingRect (void *dst, int width, int height, PaletteID pal)=0 |
| Draw a colourtable to the screen. | |
| virtual Sprite * | Encode (const SpriteLoader::Sprite *sprite, AllocatorProc *allocator)=0 |
| Convert a sprite from the loader to our own format. | |
| 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. | |
| virtual const char * | GetName ()=0 |
| Get the name of the blitter, the same as the Factory-instance returns. | |
| virtual void | PostResize () |
| Post resize event. | |
Static Public Member Functions | |
| 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. | |
| 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) |
Static Public Attributes | |
| static const int | DEFAULT_BRIGHTNESS = 128 |
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... | |
Base for all 32bpp blitters.
Definition at line 21 of file 32bpp_base.hpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 136 of file 32bpp_base.cpp.
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inlinestatic |
Compose a colour based on Pixel value, alpha value, and the current pixel value.
Handles fully transparent and solid pixels in a special (faster) way.
Definition at line 88 of file 32bpp_base.hpp.
References Colour::a, and ComposeColourPANoCheck().
Referenced by Blitter_32bppSimple::Draw().
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inlinestatic |
Compose a colour based on RGBA values and the current pixel value.
Handles fully transparent and solid pixels in a special (faster) way.
Definition at line 64 of file 32bpp_base.hpp.
References ComposeColourRGBANoCheck().
Referenced by Blitter_32bppSimple::Draw(), Blitter_32bppOptimized::Draw(), and Blitter_32bppAnim::Draw().
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 41 of file 32bpp_base.cpp.
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virtual |
Copy from the screen to a buffer in a palette format for 8bpp and RGBA format for 32bpp.
| 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. |
| dst_pitch | The pitch (byte per line) of the destination buffer. |
Implements Blitter.
Definition at line 65 of file 32bpp_base.cpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 53 of file 32bpp_base.cpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 27 of file 32bpp_base.cpp.
References LookupColourInPalette().
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inlinevirtual |
Get the screen depth this blitter works for.
This is either: 8, 16, 24 or 32.
Implements Blitter.
Definition at line 23 of file 32bpp_base.hpp.
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inlinestatic |
Make a colour dark grey, for specialized 32bpp remapping.
| r | red component |
| g | green component |
| b | blue component |
Definition at line 122 of file 32bpp_base.hpp.
Referenced by Blitter_32bppSimple::Draw(), Blitter_32bppOptimized::Draw(), and Blitter_32bppAnim::Draw().
Make a colour grey - based.
| colour | the colour to make grey. |
Definition at line 133 of file 32bpp_base.hpp.
Referenced by Blitter_32bppSimple::DrawColourMappingRect(), and Blitter_32bppAnim::DrawColourMappingRect().
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inlinestatic |
Make a pixel looks like it is transparent.
| colour | the colour already on the screen. |
| nom | the amount of transparency, nominator, makes colour lighter. |
| denom | denominator, makes colour darker. |
Definition at line 106 of file 32bpp_base.hpp.
Referenced by Blitter_32bppSimple::Draw(), Blitter_32bppOptimized::Draw(), Blitter_32bppAnim::Draw(), Blitter_32bppSimple::DrawColourMappingRect(), and Blitter_32bppAnim::DrawColourMappingRect().
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virtual |
Move the destination pointer the requested amount x and y, keeping in mind any pitch and bpp of the renderer.
| video | The destination pointer (video-buffer) to scroll. |
| x | How much you want to scroll to the right. |
| y | How much you want to scroll to the bottom. |
Implements Blitter.
Definition at line 17 of file 32bpp_base.cpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 141 of file 32bpp_base.cpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 77 of file 32bpp_base.cpp.
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virtual |
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. |
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 22 of file 32bpp_base.cpp.
References LookupColourInPalette().
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virtual |
Check if the blitter uses palette animation at all.
Implements Blitter.
Reimplemented in Blitter_32bppAnim.
Definition at line 146 of file 32bpp_base.cpp.
References Blitter::PALETTE_ANIMATION_NONE.
1.8.1.2