implemented basic masking
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98d5d58558
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27
main.c
27
main.c
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@ -9,6 +9,8 @@
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#define DEBUG_BUILD 0
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#define MASK_VALUE 50000
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typedef struct {
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uint32_t width;
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uint32_t height;
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@ -16,9 +18,10 @@ typedef struct {
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uint32_t new_height;
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uint32_t* buffer;
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uint32_t* dist_buffer;
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uint32_t* mask_buffer;
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} image_T;
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uint32_t pixel_distance(uint32_t pixel_a, uint32_t pixel_b) {
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uint32_t pixel_distance(uint32_t pixel_a, uint32_t pixel_b, uint32_t pixel_m) {
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uint8_t r_a = (pixel_a) & 0xFF;
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uint8_t g_a = (pixel_a >> 8) & 0xFF;
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uint8_t b_a = (pixel_a >> 16) & 0xFF;
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@ -27,10 +30,14 @@ uint32_t pixel_distance(uint32_t pixel_a, uint32_t pixel_b) {
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uint8_t g_b = (pixel_b >> 8) & 0xFF;
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uint8_t b_b = (pixel_b >> 16) & 0xFF;
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uint8_t r_m = (pixel_m) & 0xFF;
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uint32_t dist = (uint32_t)sqrt(pow(r_a - r_b, 2) +
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pow(g_a - g_b, 2) +
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pow(b_a - b_b, 2));
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if (r_m > 0) { dist += MASK_VALUE; }
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#if DEBUG_BUILD
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printf(" %x %x %x --> %x %x %x = %d\n", r_a, g_a, b_a, r_b, g_b, b_b, dist);
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#endif
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@ -38,10 +45,11 @@ uint32_t pixel_distance(uint32_t pixel_a, uint32_t pixel_b) {
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return dist;
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}
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image_T* image_load(const char* filename) {
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image_T* image_load(const char* filename, const char* filename_mask) {
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printf("loading '%s'...\n", filename);
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image_T* image = malloc(sizeof(image_T));
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image->mask_buffer = img_load_pixels(filename_mask, (int*)&image->width, (int*)&image->height, IMG_FMT_RGBA32);
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image->buffer = img_load_pixels(filename, (int*)&image->width, (int*)&image->height, IMG_FMT_RGBA32);
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image->dist_buffer = calloc(image->width * image->height, sizeof(uint32_t));
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image->new_width = image->width;
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@ -52,6 +60,7 @@ void image_destruct(image_T* image) {
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printf("destructing resources\n");
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img_free_pixels(image->buffer);
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img_free_pixels(image->mask_buffer);
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free(image->dist_buffer);
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free(image);
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}
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@ -77,7 +86,7 @@ void image_calculate_dist_buffer(image_T* image) {
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int32_t shortest_dist = -1;
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for (int i = (x > 0 ? -1 : 0); i < (x < image->new_width-1 ? 2 : 1); i++) {
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uint32_t dist = pixel_distance(pixel, last_row[x + i]) + dist_last_row[x + i];
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uint32_t dist = pixel_distance(pixel, last_row[x + i], image->mask_buffer[(y * image->width) + x + i]) + dist_last_row[x + i];
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if (shortest_dist == -1 || shortest_dist > dist) {
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shortest_dist = (int32_t)dist;
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@ -110,7 +119,6 @@ uint32_t image_find_best_line(image_T* image) {
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if (shortest_dist == -1 || shortest_dist > row[x]) {
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shortest_dist = (int32_t)row[x];
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line_id = x;
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printf("id: %d dist: %d\n", x, row[x]);
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}
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}
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@ -133,11 +141,13 @@ void image_cut_line(image_T* image, uint32_t line_id) {
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}
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x += offset;
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memcpy(&image->buffer[(image->width * y) + x], &image->buffer[(image->width * y) + x + 1], (image->new_width - x) * sizeof(uint32_t));
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memcpy(&image->mask_buffer[(image->width * y) + x], &image->mask_buffer[(image->width * y) + x + 1], (image->new_width - x) * sizeof(uint32_t));
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gfx_color(0, 0xFF, 0);
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gfx_point(x, y);
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gfx_flush();
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}
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image->new_width -= 1;
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gfx_flush();
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}
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void image_dump(image_T* image) {
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@ -166,7 +176,7 @@ void image_dump(image_T* image) {
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}
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gfx_color(0, 0, 0);
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for (int y = 0; y < image->new_height; y++) {
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for (int y = 0; y < image->new_height*2; y++) {
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gfx_point(image->new_width, y);
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}
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@ -196,14 +206,15 @@ void image_dump(image_T* image) {
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int main() {
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printf("Line Cutter - Juniorcamp Informatik\n");
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image_T* image = image_load("../paris.png");
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image_T* image = image_load("../paris.png", "../paris_mask.png");
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gfx_open(800, 600, "Juniorcamp Informatik - Line Cutter");
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image_dump(image);
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bool running = true;
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while(running) {
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image_dump(image);
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char c = gfx_wait();
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image_dump(image);
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switch (c) {
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case 's': {
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image_calculate_dist_buffer(image);
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