roo_display::Argb8888 Class Reference

ColorMode template contract. More...

#include <color_modes.h>

Public Member Functions
constexpr Color	toArgbColor (uint32_t in) const
constexpr uint32_t	fromArgbColor (Color color) const
constexpr TransparencyMode	transparency () const

Static Public Attributes
static const int8_t	bits_per_pixel = 32

Detailed Description

ColorMode template contract.

A color mode T must provide:

static const int8_t bits_per_pixel;
Color toArgbColor(storage_type in) const;
storage_type fromArgbColor(Color color) const;
TransparencyMode transparency() const;

Meaning and expectations:

• bits_per_pixel: how many bits encode a single pixel in this mode.
• toArgbColor(in): convert a raw pixel value to ARGB8888. If bits_per_pixel < 8, the value is stored in the low-order bits of in.
• fromArgbColor(color): convert ARGB8888 to a raw pixel value. If bits_per_pixel < 8, the return value must be in the low-order bits.
• transparency(): indicates the alpha capabilities of the mode (opaque, binary, or gradual). Used as a rendering optimization hint.

For optimized blending, consider specializing RawFullByteBlender or RawSubByteBlender. 32-bit ARGB color mode.

Definition at line 35 of file color_modes.h.

Member Function Documentation

fromArgbColor()

constexpr uint32_t roo_display::Argb8888::fromArgbColor ( Color  color ) const

inlineconstexpr

Definition at line 41 of file color_modes.h.

References color.

toArgbColor()

constexpr Color roo_display::Argb8888::toArgbColor ( uint32_t  in ) const

inlineconstexpr

Definition at line 39 of file color_modes.h.

transparency()

constexpr TransparencyMode roo_display::Argb8888::transparency ( ) const

inlineconstexpr

Definition at line 45 of file color_modes.h.

References roo_display::kFull.

Field Documentation

bits_per_pixel

const int8_t roo_display::Argb8888::bits_per_pixel = 32

static

Definition at line 37 of file color_modes.h.

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

• temp_repos/roo_display/src/roo_display/color/color_modes.h