FastLED 3.9.15
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draw_context.h
Go to the documentation of this file.
1#pragma once
2
3#include <stdint.h>
4#include "fl/namespace.h"
5#include "crgb.h"
6
7namespace fl {
8
9// Abstract base class for effects on a strip/grid of LEDs.
10
11struct _DrawContext {
12 uint32_t now;
13 CRGB* leds;
14 uint16_t frame_time = 0;
15 float speed = 1.0f;
16 uint8_t* alpha_channel = nullptr;
17 _DrawContext(
18 uint32_t now,
19 CRGB* leds,
20 uint16_t frame_time = 0,
21 float speed = 1.0f,
22 uint8_t* alpha_channel = nullptr
23 ): now(now),
24 leds(leds),
25 frame_time(frame_time),
26 speed(speed),
27 alpha_channel(alpha_channel) {}
28};
29
30} // namespace fl
31
crgb.h
Defines the red, green, and blue (RGB) pixel struct.
namespace.h
Implements the FastLED namespace macros.
fl
Implements a simple red square effect for 2D LED grids.
Definition crgb.h:16
CRGB
Representation of an RGB pixel (Red, Green, Blue)
Definition crgb.h:54
fl::_DrawContext::_DrawContext
_DrawContext(uint32_t now, CRGB *leds, uint16_t frame_time=0, float speed=1.0f, uint8_t *alpha_channel=nullptr)
Definition draw_context.h:17
fl::_DrawContext::now
uint32_t now
Definition draw_context.h:12
fl::_DrawContext::frame_time
uint16_t frame_time
Definition draw_context.h:14
fl::_DrawContext::leds
CRGB * leds
Definition draw_context.h:13
fl::_DrawContext::speed
float speed
Definition draw_context.h:15
fl::_DrawContext::alpha_channel
uint8_t * alpha_channel
Definition draw_context.h:16