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Add direct 32-bit rendering for RGBW with dithering #92

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Merged
awawa-dev merged 1 commit into from
Mar 17, 2026
Merged

Add direct 32-bit rendering for RGBW with dithering #92

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24 changes: 24 additions & 0 deletions include/framestate.h
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Original file line number Diff line number Diff line change
Expand Up @@ -35,6 +35,7 @@
enum class AwaProtocol
{
HEADER_A,
HEADER_W,
HEADER_w,
HEADER_a,
HEADER_HI,
Expand All @@ -47,6 +48,7 @@ enum class AwaProtocol
RED,
GREEN,
BLUE,
EXTRA_COLOR_BYTE_4,
FLETCHER1,
FLETCHER2,
FLETCHER_EXT
Expand All @@ -60,6 +62,7 @@ class
{
volatile AwaProtocol state = AwaProtocol::HEADER_A;
bool protocolVersion2 = false;
bool protocolVersion3 = false;
uint8_t CRC = 0;
uint16_t count = 0;
uint16_t currentLed = 0;
Expand Down Expand Up @@ -170,6 +173,27 @@ class
return protocolVersion2;
}

/**
* @brief Set if frame protocol version 3 (direct 32bit mode)
*
* @param newVer
*/
inline void setProtocolVersion3(bool newVer)
{
protocolVersion3 = newVer;
}

/**
* @brief Verify if frame protocol version 3 (direct 32bit mode)
*
* @return true
* @return false
*/
inline bool isProtocolVersion3() const
{
return protocolVersion3;
}

/**
* @brief Set new AWA frame state
*
Expand Down
6 changes: 3 additions & 3 deletions include/leds.h
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Original file line number Diff line number Diff line change
Expand Up @@ -140,17 +140,17 @@ struct ColorGrbw

struct ColorDotstartBgr
{
uint8_t brightness;
uint8_t Brightness;
uint8_t B;
uint8_t G;
uint8_t R;

ColorDotstartBgr(uint8_t gray) :
R(gray), G(gray), B(gray), brightness(gray | 0b11100000)
R(gray), G(gray), B(gray), Brightness(gray | 0b11100000)
{
};

ColorDotstartBgr() : R(0), G(0), B(0), brightness(0xff)
ColorDotstartBgr() : R(0), G(0), B(0), Brightness(0xff)
{
};
};
Expand Down
45 changes: 44 additions & 1 deletion include/main.h
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Original file line number Diff line number Diff line change
Expand Up @@ -29,7 +29,7 @@
#define MAIN_H

#define MAX_BUFFER (3013 * 3 + 1)
#define HELLO_MESSAGE "\r\nWelcome!\r\nAwa driver 9.\r\n"
#define HELLO_MESSAGE "\r\nWelcome!\r\nAwa driver 11.\r\n"

#include "calibration.h"
#include "statistics.h"
Expand Down Expand Up @@ -81,13 +81,28 @@ void processData()
case AwaProtocol::HEADER_A:
// assume it's protocol version 1, verify it later
frameState.setProtocolVersion2(false);
frameState.setProtocolVersion3(false);
if (input == 'A')
frameState.setState(AwaProtocol::HEADER_w);
break;

case AwaProtocol::HEADER_w:
if (input == 'w')
frameState.setState(AwaProtocol::HEADER_a);
#if defined(NEOPIXEL_RGBW) || defined(SPILED_APA102)
else if (input == 'W')
frameState.setState(AwaProtocol::HEADER_W);
#endif
else
frameState.setState(AwaProtocol::HEADER_A);
break;
case AwaProtocol::HEADER_W:
// detect protocol version 3
if (input == 'a')
{
frameState.setState(AwaProtocol::HEADER_HI);
frameState.setProtocolVersion3(true);
}
else
frameState.setState(AwaProtocol::HEADER_A);
break;
Expand Down Expand Up @@ -167,10 +182,38 @@ void processData()
frameState.setState(AwaProtocol::BLUE);
break;

case AwaProtocol::EXTRA_COLOR_BYTE_4:
#ifdef NEOPIXEL_RGBW
frameState.color.W = input;
#elif defined(SPILED_APA102)
frameState.color.Brightness = input;
#endif
frameState.addFletcher(input);

if (base.setStripPixel(frameState.getCurrentLedIndex(), frameState.color))
{
frameState.setState(AwaProtocol::RED);
}
else
{
frameState.setState(AwaProtocol::FLETCHER1);
}
break;

case AwaProtocol::BLUE:
frameState.color.B = input;
frameState.addFletcher(input);

if (frameState.isProtocolVersion3())
{
frameState.setState(AwaProtocol::EXTRA_COLOR_BYTE_4);
break;
}

#if defined(SPILED_APA102)
frameState.color.Brightness = 0xFF;
#endif

#ifdef NEOPIXEL_RGBW
// calculate RGBW from RGB using provided calibration data
frameState.rgb2rgbw();
Expand Down
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