4  * Copyright 2002-2010 Guillaume Cottenceau.
31 #define ERR_FILE_NOT_FOUND  -1
32 #define ERR_PNG             -2
98     int x, y, i_buf = 0;  in lv_test_assert_img_eq()  local
99     for(y = 0; y < p.height; y++) {  in lv_test_assert_img_eq()
100         png_byte * row = p.row_pointers[y];  in lv_test_assert_img_eq()
126         fn_ref_no_ext[strlen(fn_ref_no_ext) - 4] = '\0';  in lv_test_assert_img_eq()
162     p->png_ptr = png_create_read_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);  in read_png_file()
164     if(!p->png_ptr) {  in read_png_file()
169     p->info_ptr = png_create_info_struct(p->png_ptr);  in read_png_file()
170     if(!p->info_ptr) {  in read_png_file()
174     if(setjmp(png_jmpbuf(p->png_ptr))) {  in read_png_file()
178     png_init_io(p->png_ptr, fp);  in read_png_file()
179     png_set_sig_bytes(p->png_ptr, 8);  in read_png_file()
181     png_read_info(p->png_ptr, p->info_ptr);  in read_png_file()
183     p->width = png_get_image_width(p->png_ptr, p->info_ptr);  in read_png_file()
184     p->height = png_get_image_height(p->png_ptr, p->info_ptr);  in read_png_file()
185     p->color_type = png_get_color_type(p->png_ptr, p->info_ptr);  in read_png_file()
186     p->bit_depth = png_get_bit_depth(p->png_ptr, p->info_ptr);  in read_png_file()
188     p->number_of_passes = png_set_interlace_handling(p->png_ptr);  in read_png_file()
189     png_read_update_info(p->png_ptr, p->info_ptr);  in read_png_file()
192     if(setjmp(png_jmpbuf(p->png_ptr))) {  in read_png_file()
196     p->row_pointers = (png_bytep *) malloc(sizeof(png_bytep) * p->height);  in read_png_file()
198     int y;  in read_png_file()  local
199     for(y = 0; y < p->height; y++)  in read_png_file()
200         p->row_pointers[y] = (png_byte *) malloc(png_get_rowbytes(p->png_ptr, p->info_ptr));  in read_png_file()
202     png_read_image(p->png_ptr, p->row_pointers);  in read_png_file()
221         return -1;  in write_png_file()
229         return -1;  in write_png_file()
235         return -1;  in write_png_file()
240         return -1;  in write_png_file()
248         return -1;  in write_png_file()
261         return -1;  in write_png_file()
266     for(uint32_t y = 0; y < height; y++) {  in write_png_file()  local
267         row_pointers[y] = malloc(3 * width);  in write_png_file()
268         uint8_t * line = raw_img8 + y * width * 4;  in write_png_file()
270             row_pointers[y][x * 3 + 0] = line[x * 4 + 2];  in write_png_file()
271             row_pointers[y][x * 3 + 1] = line[x * 4 + 1];  in write_png_file()
272             row_pointers[y][x * 3 + 2] = line[x * 4 + 0];  in write_png_file()
281         return -1;  in write_png_file()
286     for(uint32_t y = 0; y < height; y++) free(row_pointers[y]);  in write_png_file()  local
298     int y;  in png_release()  local
299     for(y = 0; y < p->height; y++) free(p->row_pointers[y]);  in png_release()
301     free(p->row_pointers);  in png_release()
303     png_destroy_read_struct(&p->png_ptr, &p->info_ptr, NULL);  in png_release()