回答編集履歴
1
リファクタリングした
test
CHANGED
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@@ -43,3 +43,95 @@
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> img[i][j].r = rr;
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----
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53
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リファクタリングしたコードを載せておきます。
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```cpp
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void bmp_mosaic(bmp_header_t *hd, pixel_t img[MAX_Y][MAX_X]) {
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int x, y, dx, dy;
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unsigned int r, g, b;
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int size = 16;
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int pixelCount;
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for (y = 0; y < hd->biHeight; y += size) {
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for (x = 0; x < hd->biWidth / 2; x += size) {
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r = 0;
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g = 0;
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b = 0;
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pixelCount = 0;
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for (dy = 0; dy < size && y + dy < hd->biHeight; dy++) {
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for (dx = 0; dx < size && x + dx < hd->biWidth; dx++) {
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r += img[y + dy][x + dx].r;
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g += img[y + dy][x + dx].g;
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b += img[y + dy][x + dx].b;
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pixelCount++;
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}
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}
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r /= pixelCount;
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g /= pixelCount;
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b /= pixelCount;
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for (dy = 0; dy < size && y + dy < hd->biHeight; dy++) {
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for (dx = 0; dx < size && x + dx < hd->biWidth; dx++) {
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img[y + dy][x + dx].r = r;
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img[y + dy][x + dx].g = g;
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img[y + dy][x + dx].b = b;
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}
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}
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}
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}
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}
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```
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