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mip-mapping related fixes

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MihailRis 2024-11-25 15:39:34 +03:00
parent 7ddf3f7537
commit d9277e1b31
4 changed files with 34 additions and 15 deletions
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38
src/graphics/core/ImageData.cpp
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@ -242,18 +242,34 @@ void ImageData::extrude(int x, int y, int w, int h) {
}
}
// Fixing black transparent pixels for Mip-Mapping
void ImageData::fixAlphaColor() {
// Fixing black transparent pixels for Mip-Mapping
for (uint ly = 0; ly < height-1; ly++) {
for (uint lx = 0; lx < width-1; lx++) {
if (data[((ly) * width + lx) * 4 + 3]) {
for (int c = 0; c < 3; c++) {
int val = data[((ly) + + lx) * 4 + c];
if (data[((ly) * width + lx + 1) * 4 + 3] == 0)
data[((ly) * width + lx + 1) * 4 + c] = val;
if (data[((ly + 1) * width + lx) * 4 + 3] == 0)
data[((ly + 1) * width + lx) * 4 + c] = val;
}
int samples = 0;
int sums[3] {};
for (uint ly = 0; ly < height; ly++) {
for (uint lx = 0; lx < width; lx++) {
if (data[(ly * width + lx) * 4 + 3] == 0) {
continue;
}
samples++;
for (int c = 0; c < 3; c++) {
sums[c] += data[(ly * width + lx) * 4 + c];
}
}
}
if (samples == 0) {
return;
}
for (int i = 0; i < 3; i++) {
sums[i] /= samples;
}
for (uint ly = 0; ly < height; ly++) {
for (uint lx = 0; lx < width; lx++) {
if (data[(ly * width + lx) * 4 + 3] != 0) {
continue;
}
for (int i = 0; i < 3; i++) {
data[(ly * width + lx) * 4 + i] = sums[i];
}
}
}