mirror of
https://github.com/gbdev/rgbds.git
synced 2025-11-20 18:22:07 +00:00
Use // line comments not /* block comments
This commit is contained in:
@@ -1,4 +1,4 @@
|
||||
/* SPDX-License-Identifier: MIT */
|
||||
// SPDX-License-Identifier: MIT
|
||||
|
||||
#ifndef RGBDS_GFX_RGBA_HPP
|
||||
#define RGBDS_GFX_RGBA_HPP
|
||||
@@ -13,9 +13,7 @@ struct Rgba {
|
||||
|
||||
constexpr Rgba(uint8_t r, uint8_t g, uint8_t b, uint8_t a)
|
||||
: red(r), green(g), blue(b), alpha(a) {}
|
||||
/*
|
||||
* Constructs the color from a "packed" RGBA representation (0xRRGGBBAA)
|
||||
*/
|
||||
// Constructs the color from a "packed" RGBA representation (0xRRGGBBAA)
|
||||
explicit constexpr Rgba(uint32_t rgba = 0)
|
||||
: red(rgba >> 24), green(rgba >> 16), blue(rgba >> 8), alpha(rgba) {}
|
||||
|
||||
@@ -32,10 +30,8 @@ struct Rgba {
|
||||
};
|
||||
}
|
||||
|
||||
/*
|
||||
* Returns this RGBA as a 32-bit number that can be printed in hex (`%08x`) to yield its CSS
|
||||
* representation
|
||||
*/
|
||||
// Returns this RGBA as a 32-bit number that can be printed in hex (`%08x`) to yield its CSS
|
||||
// representation
|
||||
uint32_t toCSS() const {
|
||||
auto shl = [](uint8_t val, unsigned shift) { return static_cast<uint32_t>(val) << shift; };
|
||||
return shl(red, 24) | shl(green, 16) | shl(blue, 8) | shl(alpha, 0);
|
||||
@@ -43,19 +39,15 @@ struct Rgba {
|
||||
bool operator==(Rgba const &rhs) const { return toCSS() == rhs.toCSS(); }
|
||||
bool operator!=(Rgba const &rhs) const { return toCSS() != rhs.toCSS(); }
|
||||
|
||||
/*
|
||||
* CGB colors are RGB555, so we use bit 15 to signify that the color is transparent instead
|
||||
* Since the rest of the bits don't matter then, we return 0x8000 exactly.
|
||||
*/
|
||||
// CGB colors are RGB555, so we use bit 15 to signify that the color is transparent instead
|
||||
// Since the rest of the bits don't matter then, we return 0x8000 exactly.
|
||||
static constexpr uint16_t transparent = 0b1'00000'00000'00000;
|
||||
|
||||
static constexpr uint8_t transparency_threshold = 0x10;
|
||||
bool isTransparent() const { return alpha < transparency_threshold; }
|
||||
static constexpr uint8_t opacity_threshold = 0xF0;
|
||||
bool isOpaque() const { return alpha >= opacity_threshold; }
|
||||
/*
|
||||
* Computes the equivalent CGB color, respects the color curve depending on options
|
||||
*/
|
||||
// Computes the equivalent CGB color, respects the color curve depending on options
|
||||
uint16_t cgbColor() const;
|
||||
|
||||
bool isGray() const { return red == green && green == blue; }
|
||||
|
||||
Reference in New Issue
Block a user