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Update variable naming.

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This commit is contained in:
Ivan Nikulin 2016-09-15 16:59:52 +02:00
parent 9589396e5d
commit 0e52c59a07
1 changed files with 16 additions and 20 deletions
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36
research/draw_histogram.cc
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@ -61,7 +61,7 @@ void AdjustPosition(int* pos) {
*pos += offset;
}
void CalculateStuff(FILE* fin, int** stuff) {
void BuildHistogram(FILE* fin, int** histo) {
int height = FLAGS_height;
int width = FLAGS_width;
int skip = FLAGS_skip;
@ -71,7 +71,7 @@ void CalculateStuff(FILE* fin, int** stuff) {
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
stuff[i][j] = 0;
histo[i][j] = 0;
}
}
@ -107,46 +107,46 @@ void CalculateStuff(FILE* fin, int** stuff) {
assert(right >= 0);
}
if (y == right) {
stuff[x][y] += copy;
histo[x][y] += copy;
} else {
int pos2 = static_cast<int>(ceil(1.0 * (y + 1) * max_pos / width));
stuff[x][y] += pos2 - pos;
histo[x][y] += pos2 - pos;
for (int i = y + 1; i < right && i < width; ++i) {
stuff[x][i] += max_pos / width; // Sometimes 1 more, but who cares.
histo[x][i] += max_pos / width; // Sometimes 1 more, but who cares.
}
// Make sure the match doesn't go beyond the image.
if (right < width) {
pos2 = static_cast<int>(ceil(1.0 * right * max_pos / width));
stuff[x][right] += pos + copy - 1 - pos2 + 1;
histo[x][right] += pos + copy - 1 - pos2 + 1;
}
}
} else {
stuff[x][y]++;
histo[x][y]++;
}
}
}
}
void ConvertToPixels(int** stuff, uint8_t** pixel) {
void ConvertToPixels(int** histo, uint8_t** pixel) {
int height = FLAGS_height;
int width = FLAGS_width;
int maxs = 0;
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
if (maxs < stuff[i][j]) maxs = stuff[i][j];
if (maxs < histo[i][j]) maxs = histo[i][j];
}
}
bool simple = FLAGS_simple;
double max_stuff = static_cast<double>(maxs);
double max_histo = static_cast<double>(maxs);
for (int i = 0; i < height; i++) {
for (int j = 0; j < width; j++) {
if (simple) {
pixel[i][j] = stuff[i][j] > 0 ? 0 : 255;
pixel[i][j] = histo[i][j] > 0 ? 0 : 255;
} else {
pixel[i][j] = static_cast<uint8_t>(
255 - DensityTransform(stuff[i][j] / max_stuff * 255));
255 - DensityTransform(histo[i][j] / max_histo * 255));
}
}
}
@ -178,21 +178,17 @@ int main(int argc, char* argv[]) {
if (FLAGS_max_distance == 0) FLAGS_max_distance = FLAGS_size;
/* The bio of stuff:
1. Copy length of backward reference.
2. Number of backward references per pixel/bucket.
*/
uint8_t** pixel = new uint8_t*[height];
int** stuff = new int*[height];
int** histo = new int*[height];
for (int i = 0; i < height; i++) {
pixel[i] = new uint8_t[width];
stuff[i] = new int[width];
histo[i] = new int[width];
}
CalculateStuff(fin, stuff);
BuildHistogram(fin, histo);
fclose(fin);
ConvertToPixels(stuff, pixel);
ConvertToPixels(histo, pixel);
DrawPixels(pixel, fout);
fclose(fout);