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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <assert.h>
#include <raylib.h>
#include <tiffio.h>
#include <lib/lib.h>
#define TAG 50839
#define OFFSET 16
#define ONE_ROW 1
#define bool_t uint8_t
#define FALSE 0
#define TRUE 1
double diff_timespec(struct timespec *time1, struct timespec *time0) {
return (time1->tv_sec - time0->tv_sec)
+ (time1->tv_nsec - time0->tv_nsec) / 1000000000.0;
}
bool_t color_zero(uint8_t* color1, size_t channels) {
for (size_t idx = 0; idx < channels; idx++) {
if (idx == 3) {
break;
}
if (color1[idx] != 0) {
return FALSE;
}
}
return TRUE;
}
bool_t color_equal(uint8_t* color1, uint8_t* color2, size_t channels) {
for (size_t idx = 0; idx < channels; idx++) {
if (color1[idx] != color2[idx]) {
return FALSE;
}
}
return TRUE;
}
void print_color(uint8_t* color, size_t channels) {
for (size_t index = 0; index < channels; index++) {
printf("%hhu ", color[index]);
}
printf("\n");
}
bool_t flood(uint8_t* image, uint16_t* mask, size_t width, size_t height, size_t channels, size_t x, size_t y, uint8_t* color_old, uint16_t label)
{
if ((x >= width) | (y >= height)) {
return FALSE;
}
size_t coord = x + y*width;
if (mask[coord] != 0) {
return FALSE;
}
if (color_zero(&(image[coord*channels]), channels)) {
return FALSE;
}
if (color_equal(&(image[coord*channels]), color_old, channels)) {
mask[coord] = label;
flood(image, mask, width, height, channels, x, y+1, color_old, label);
flood(image, mask, width, height, channels, x, y-1, color_old, label);
flood(image, mask, width, height, channels, x+1, y, color_old, label);
flood(image, mask, width, height, channels, x-1, y, color_old, label);
return TRUE;
}
return FALSE;
}
int main()
{
SetConfigFlags(FLAG_WINDOW_RESIZABLE);
const char* gui_title = "Image Manip - Useful for segmentations!";
InitWindow(SCREEN_WIDTH, SCREEN_HEIGHT, gui_title);
TIFF *tif = TIFFOpen("./data/test.tif", "r");
if (!tif) {
fprintf(stderr, "Failed to open TIFF file\n");
return 1;
}
uint32_t width, height;
size_t channels = 1;
TIFFGetField(tif, TIFFTAG_IMAGEWIDTH, &width);
TIFFGetField(tif, TIFFTAG_IMAGELENGTH, &height);
void* buffer;
tmsize_t STRIP_LENGTH = TIFFStripSize(tif);
tmsize_t STRIP_COUNT = TIFFNumberOfStrips(tif);
if (width*height*3 == STRIP_LENGTH*STRIP_COUNT) {
channels = 3;
} else if (width*height*4 == STRIP_LENGTH*STRIP_COUNT) {
channels = 4;
}
printf("%llu\n", STRIP_LENGTH*STRIP_COUNT);
printf("%lu %hhu\n", width*height*channels, channels);
assert(STRIP_LENGTH*STRIP_COUNT == width*height*channels);
buffer = malloc(STRIP_LENGTH*sizeof(uint8_t));
uint8_t* raster_8 = calloc(width*height*channels,sizeof(uint8_t));
for (size_t y = 0; y < STRIP_COUNT; y++) {
tmsize_t strip_size = TIFFReadRawStrip(tif, y, buffer, STRIP_LENGTH);
assert(strip_size == STRIP_LENGTH);
for (size_t x = 0; x < STRIP_LENGTH; x++) {
raster_8[x + y*STRIP_LENGTH] = ((uint8_t*)buffer)[x];
}
}
free(buffer);
struct timespec ts_start, ts_end;
char buff[100];
timespec_get(&ts_start, TIME_UTC);
strftime(buff, sizeof buff, "%D %T", gmtime(&ts_start.tv_sec));
printf("Current time: %s.%09ld UTC\n", buff, ts_start.tv_nsec);
// Flood fill
uint16_t starting_label = 1;
uint16_t *labels = NULL;
labels = (uint16_t*)calloc(width*height,sizeof(uint16_t));
for (size_t y = 0; y < height; y++) {
for (size_t x = 0; x < width; x++) {
size_t coord = x + y*width;
if(flood(raster_8, labels, width, height, channels, x, y, &(raster_8[coord*channels]), starting_label)) {
starting_label += 1;
}
}
}
for (size_t y = 0; y < height; y++) {
for (size_t x = 0; x < width; x++) {
labels[x + y*width] |= 0xFF000000;
}
}
timespec_get(&ts_end, TIME_UTC);
strftime(buff, sizeof buff, "%D %T", gmtime(&ts_end.tv_sec));
printf("Current time: %s.%09ld UTC\n", buff, ts_end.tv_nsec);
printf("Time difference: %f\n", diff_timespec(&ts_end, &ts_start));
printf("N_labels: %u\n", starting_label-1);
uint32_t *raster = (uint32_t*)_TIFFmalloc(width*height*sizeof(uint32_t));
if (raster == NULL) {
fprintf(stderr, "Memory allocation error\n");
TIFFClose(tif);
return 1;
}
if (!TIFFReadRGBAImage(tif, width, height, raster, 0)) {
fprintf(stderr, "Failed to read TIFF image\n");
_TIFFfree(raster);
TIFFClose(tif);
return 1;
}
Image RaylibImage;
//RaylibImage.data = raster;
//RaylibImage.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8;
RaylibImage.data = raster_8;
if (channels == 1) {
RaylibImage.format = PIXELFORMAT_UNCOMPRESSED_GRAYSCALE;
} else if (channels == 3) {
RaylibImage.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8;
} else if (channels == 4) {
RaylibImage.format = PIXELFORMAT_UNCOMPRESSED_R8G8B8A8;
} else {
assert(0);
}
RaylibImage.data = labels;
RaylibImage.format = PIXELFORMAT_UNCOMPRESSED_R4G4B4A4;
RaylibImage.width = width;
RaylibImage.height = height;
RaylibImage.mipmaps = 1;
Texture2D RaylibTexture = LoadTextureFromImage(RaylibImage);
Rectangle sourceRec = { 0.0f, 0.0f, (float)width, (float)height };
Rectangle destRec = { 0.0f, 0.0f, (float)SCREEN_WIDTH, (float)(SCREEN_HEIGHT-OFFSET) };
Vector2 origin = { (float)0, (float)-OFFSET };
SetTargetFPS(60);
Camera2D camera = { 0 };
camera.zoom = 1.0f;
while (!WindowShouldClose()) {
//-----------------------------------------------
//-DRAWING---------------------------------------
//-----------------------------------------------
BeginDrawing();
ClearBackground(RAYWHITE);
BeginMode2D(camera);
EndMode2D();
DrawText("Image Manip", 0, 0, OFFSET, DARKGRAY);
DrawTexturePro(RaylibTexture, sourceRec, destRec, origin, (float)0,
RAYWHITE);
uint32_t x = 0x49, y = 0x4A;
uint32_t dx = 0x69 - x, dy = 0x6E - y;
x = (SCREEN_WIDTH*x)/width;
y = SCREEN_HEIGHT-((SCREEN_HEIGHT-OFFSET)*y)/height;
dx = (SCREEN_WIDTH*dx)/width;
dy = SCREEN_HEIGHT-((SCREEN_HEIGHT-OFFSET)*dy)/height;
DrawRectangleGradientH(x, y, dx, dy, BLUE, PURPLE);
EndDrawing();
//-----------------------------------------------
}
if (labels != NULL) {
free(labels);
}
free(raster_8);
_TIFFfree(raster);
TIFFClose(tif);
CloseWindow();
return 0;
}
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