snark13/Xteink-X4-crosspoint-reader
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Remove brightness boost parameter.

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This commit is contained in:
Jonas Diemer 2026-01-09 17:39:58 +01:00
parent 40a92f3d34
commit ec8e19ed46
2 changed files with 3 additions and 16 deletions
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15
lib/GfxRenderer/Bitmap.cpp
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@ -32,16 +32,6 @@ static inline int applyGamma(int gray) {
return x > 255 ? 255 : x;
}
// TODO: remove
static inline uint8_t boostBrightness(int gray, uint8_t boost) {
if (boost > 0) {
gray += boost;
if (gray > 255) gray = 255;
gray = applyGamma(gray);
}
return gray;
}
// Apply contrast adjustment around midpoint (128)
// factor > 1.0 increases contrast, < 1.0 decreases
static inline int applyContrast(int gray) {
@ -320,11 +310,10 @@ BmpReaderError Bitmap::readNextRow(uint8_t* data, uint8_t* rowBuffer) const {
uint8_t color;
if (useFS) {
// Floyd-Steinberg error diffusion
color = quantizeFloydSteinberg(boostBrightness(lum, brightnessBoost), currentX, width, errorCurRow, errorNextRow,
false);
color = quantizeFloydSteinberg(adjustPixel(lum), currentX, width, errorCurRow, errorNextRow, false);
} else {
// Simple quantization or noise dithering
color = quantize(boostBrightness(lum, brightnessBoost), currentX, prevRowY);
color = quantize(adjustPixel(lum), currentX, prevRowY);
}
currentOutByte |= (color << bitShift);
if (bitShift == 0) {

4
lib/GfxRenderer/Bitmap.h
View File

@ -30,8 +30,7 @@ class Bitmap {
public:
static const char* errorToString(BmpReaderError err);
explicit Bitmap(FsFile& file, bool useFloydSteinberg = false, uint8_t brightnessBoost = 0)
: file(file), useFloydSteinberg(useFloydSteinberg), brightnessBoost(brightnessBoost) {}
explicit Bitmap(FsFile& file, bool useFloydSteinberg = false) : file(file), useFloydSteinberg(useFloydSteinberg) {}
~Bitmap();
BmpReaderError parseHeaders();
BmpReaderError readNextRow(uint8_t* data, uint8_t* rowBuffer) const;
@ -48,7 +47,6 @@ class Bitmap {
FsFile& file;
bool useFloydSteinberg = false;
uint8_t brightnessBoost = 0;
int width = 0;
int height = 0;
bool topDown = false;