void qr_code_generation ( char *input, char *output )
{
int i;
int version;
int size;
char *str_source_bin;
char *data;
char **blocks;
char **pattern;
int **correction_blocks;
str_source_bin = convert_to_utf8( input ); //convert string to utf8 ascii
version = optimal_version( strlen( str_source_bin ) ); //optimal version
str_source_bin = add_service_inf(str_source_bin, &version); //add service information into string
blocks = create_blocks( str_source_bin, version ); //create blocks
correction_blocks = create_correction_block( blocks, version ); //create correction blocks
data = create_data ( blocks, correction_blocks, version ); //create data for qr code
pattern = create_canvas_pattern ( data, version ); //create pattern for bmp
create_bmp( pattern, output, version ); //create bmp
//free str_source_bin
free ( str_source_bin );
//free blocks
//free correction_blocks
for ( i = 0; i < number_of_blocks[version]; i++ )
{
free( blocks[i] );
free( correction_blocks[i] );
}
free( blocks );
free( correction_blocks );
//free data
free( data );
//free pattern
size = ( ( ( version - 1 ) * 4 ) + 21 );
size+=8; //white border
for ( i = 0; i < size; i++ )
free( pattern[i] );
free( pattern );
}
bmp_t* convert_24bpp(bmp_t *bmp){
bmp_t *converted = create_bmp(bmp->info.w, bmp->info.h, 24);
if (!converted){
fprintf(stderr, "convert_24bpp error: Failed to allocate room for conversion\n");
return NULL;
}
int w = bmp->info.w, h = bmp->info.h;
for (int i = 0; i < h; ++i){
for (int j = 0; j < w; ++j){
uint8_t color[3];
get_pixel(bmp, j, i, &color[0], &color[1], &color[2]);
set_pixel(converted, j, i, color[0], color[1], color[2]);
}
}
return converted;
}
static View* create_title_view(Window* window) {
if (!window) return NULL;
Rect title_view_frame = rect_make(point_make(0, 0), size_make(window->frame.size.width, WINDOW_TITLE_VIEW_HEIGHT));
View* title_view = create_view(title_view_frame);
title_view->background_color = window->border_color;
Button* close_button = create_button(rect_make(point_zero(), size_make(CHAR_WIDTH * 2, title_view->frame.size.height)), "X");
close_button->mousedown_handler = (event_handler)&close_button_clicked;
add_button(title_view, close_button);
Button* minimize_button = create_button(rect_make(point_make(rect_max_x(close_button->frame), 0), size_make(CHAR_WIDTH * 2, title_view->frame.size.height)), "-");
minimize_button->mousedown_handler = (event_handler)&minimize_button_clicked;
add_button(title_view, minimize_button);
//add title label to title view
int label_length = 20 * CHAR_WIDTH;
Rect label_frame = rect_make(point_make(rect_max_x(minimize_button->frame) + 15, title_view_frame.size.height / 2 - (CHAR_HEIGHT / 2)), size_make(label_length, CHAR_HEIGHT));
Label* title_label = create_label(label_frame, window->title);
title_label->text_color = color_black();
add_sublabel(title_view, title_label);
Bmp* dots = create_bmp(title_view_frame, create_layer(title_view_frame.size));
uint8_t* ref = dots->layer->raw;
for (int y = 0; y < dots->frame.size.height; y++) {
for (int x = 0; x < dots->frame.size.width; x++) {
if (!((x + y) % 2)) {
*ref++ = 50;
*ref++ = 50;
*ref++ = 50;
}
else {
*ref++ = 200;
*ref++ = 160;
*ref++ = 90;
}
}
}
add_bmp(title_view, dots);
return title_view;
}
void dump_histo_img(unsigned char* histo, unsigned int height, unsigned int width, const char *filename)
{
RGB* pixel_map = (RGB*) malloc (height*width*sizeof(RGB));
size_t y, x;
for (y = 0; y < height; ++y)
{
for (x = 0; x < width; ++x)
{
unsigned char value = histo[y * width + x];
if (value == 0){
pixel_map[y*width+x].R = 0;
pixel_map[y*width+x].G = 0;
pixel_map[y*width+x].B = 0;
} else {
pixel_map[y*width+x] = HSVtoRGB(0.0,1.0,cbrt(1+ 63.0*((float)value)/((float)UINT8_MAX))/4);
}
}
}
create_bmp(pixel_map, height, width, filename);
free(pixel_map);
}
