isf15acp4::Canvas Class Reference

CPU-side RGB565 framebuffer with basic drawing operations. More...

#include <isf15acp4_canvas.hpp>

Collaboration diagram for isf15acp4::Canvas:

Public Member Functions
	Canvas (ProductVariant variant=ProductVariant::Isf15acp4) noexcept
	Construct a canvas for the given product geometry.
void	Clear (Color565 color) noexcept
	Clear the framebuffer to a solid color.
void	SetPixel (uint8_t x, uint8_t y, Color565 color) noexcept
	Set one pixel if in bounds.
Color565	GetPixel (uint8_t x, uint8_t y) const noexcept
	Get one pixel; returns black when out of bounds.
void	DrawHLine (uint8_t x0, uint8_t x1, uint8_t y, Color565 color) noexcept
	Draw a horizontal line inclusive of both endpoints.
void	DrawVLine (uint8_t x, uint8_t y0, uint8_t y1, Color565 color) noexcept
	Draw a vertical line inclusive of both endpoints.
void	DrawRect (const Rect &rect, Color565 color) noexcept
	Draw rectangle outline.
void	FillRect (const Rect &rect, Color565 color) noexcept
	Fill a solid rectangle.
void	DrawChar (uint8_t x, uint8_t y, char ch, Color565 color, Color565 bg=colors::Black) noexcept
	Draw a single character using the built-in 5x7 font.
void	DrawString (uint8_t x, uint8_t y, const char *text, Color565 color, Color565 bg=colors::Black) noexcept
	Draw a null-terminated string.
void	BlitRgb565 (uint8_t x, uint8_t y, uint8_t src_width, uint8_t src_height, const Color565 *src) noexcept
	Blit a contiguous RGB565 buffer into the canvas.
uint8_t	Width () const noexcept
uint8_t	Height () const noexcept
std::size_t	ByteSize () const noexcept
const Color565 *	Data () const noexcept
Color565 *	Data () noexcept

Private Attributes
DisplayGeometry	geometry_
Color565	buffer_ [96 *64]

Detailed Description

CPU-side RGB565 framebuffer with basic drawing operations.

The canvas stores pixels in row-major RGB565 order matching the SSD1331 download format for the selected product variant.

Constructor & Destructor Documentation

Canvas()

isf15acp4::Canvas::Canvas ( ProductVariant  variant = ProductVariant::Isf15acp4 )

inlineexplicitnoexcept

Construct a canvas for the given product geometry.

Parameters

variant

Target SmartDisplay variant.

Member Function Documentation

BlitRgb565()

void isf15acp4::Canvas::BlitRgb565 ( uint8_t  x, uint8_t  y, uint8_t  src_width, uint8_t  src_height, const Color565 *  src  )

inlinenoexcept

Blit a contiguous RGB565 buffer into the canvas.

Parameters

x	Destination X.
y	Destination Y.
src_width	Source image width in pixels.
src_height	Source image height in pixels.
src	Source RGB565 pixels (row-major).

ByteSize()

std::size_t isf15acp4::Canvas::ByteSize ( ) const

inlinenoexcept

Clear()

void isf15acp4::Canvas::Clear ( Color565  color )

inlinenoexcept

Clear the framebuffer to a solid color.

Data() [1/2]

const Color565 * isf15acp4::Canvas::Data ( ) const

inlinenoexcept

Data() [2/2]

Color565 * isf15acp4::Canvas::Data ( )

inlinenoexcept

DrawChar()

void isf15acp4::Canvas::DrawChar ( uint8_t  x, uint8_t  y, char  ch, Color565  color, Color565  bg = colors::Black  )

inlinenoexcept

Draw a single character using the built-in 5x7 font.

DrawHLine()

void isf15acp4::Canvas::DrawHLine ( uint8_t  x0, uint8_t  x1, uint8_t  y, Color565  color  )

inlinenoexcept

Draw a horizontal line inclusive of both endpoints.

DrawRect()

void isf15acp4::Canvas::DrawRect ( const Rect &  rect, Color565  color  )

inlinenoexcept

Draw rectangle outline.

DrawString()

void isf15acp4::Canvas::DrawString ( uint8_t  x, uint8_t  y, const char *  text, Color565  color, Color565  bg = colors::Black  )

inlinenoexcept

Draw a null-terminated string.

DrawVLine()

void isf15acp4::Canvas::DrawVLine ( uint8_t  x, uint8_t  y0, uint8_t  y1, Color565  color  )

inlinenoexcept

Draw a vertical line inclusive of both endpoints.

FillRect()

void isf15acp4::Canvas::FillRect ( const Rect &  rect, Color565  color  )

inlinenoexcept

Fill a solid rectangle.

GetPixel()

Color565 isf15acp4::Canvas::GetPixel ( uint8_t  x, uint8_t  y  ) const

inlinenoexcept

Get one pixel; returns black when out of bounds.

Height()

uint8_t isf15acp4::Canvas::Height ( ) const

inlinenoexcept

SetPixel()

void isf15acp4::Canvas::SetPixel ( uint8_t  x, uint8_t  y, Color565  color  )

inlinenoexcept

Set one pixel if in bounds.

Width()

uint8_t isf15acp4::Canvas::Width ( ) const

inlinenoexcept

Member Data Documentation

buffer_

Color565 isf15acp4::Canvas::buffer_[96 *64]

private

geometry_

DisplayGeometry isf15acp4::Canvas::geometry_

private

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

• inc/isf15acp4_canvas.hpp
• src/isf15acp4_canvas.ipp