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Rev | Author | Line No. | Line |
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8818 | turbocat | 1 | /* Written by turbocat2001 (Logaev Maxim) */ |
2 | |||
3 | #include |
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4 | #include |
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5 | #include |
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6 | #include |
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7 | #include |
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8 | |||
9 | #define NEW_IMG_H 128 |
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10 | #define NEW_IMG_W 128 |
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11 | |||
12 | #define IMG_H 256 |
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13 | #define IMG_W 256 |
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14 | |||
15 | Image *image_blend; // Create image struct |
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16 | |||
17 | ksys_colors_table_t sys_color_table; // Create system colors table |
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18 | |||
19 | void* load_img(char* fname, uint32_t* read_sz){ // Image file upload function |
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20 | FILE *f = fopen(fname, "rb"); |
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21 | if (!f) { |
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22 | printf("Can't open file: %s\n", fname); |
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23 | return NULL; |
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24 | } |
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25 | if (fseek(f, 0, SEEK_END)) { |
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26 | printf("Can't SEEK_END file: %s\n", fname); |
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27 | return NULL; |
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28 | } |
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29 | int filesize = ftell(f); |
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30 | rewind(f); |
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31 | void* fdata = malloc(filesize); |
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32 | if(!fdata) { |
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33 | printf("No memory for file %s\n", fname); |
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34 | return NULL; |
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35 | } |
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36 | *read_sz = fread(fdata, 1, filesize, f); |
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37 | if (ferror(f)) { |
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38 | printf("Error reading file %s\n", fname); |
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39 | return NULL; |
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40 | } |
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41 | fclose(f); |
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42 | return fdata; |
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43 | } |
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44 | |||
45 | void draw_gui(){ |
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46 | _ksys_start_draw(); |
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9558 | turbocat | 47 | _ksys_create_window(10, 40, (IMG_W+NEW_IMG_W)+50, IMG_H+50, "Libimg", sys_color_table.work_area, 0x34); |
48 | img_draw(image_blend, 10, 10, IMG_W*2, IMG_H , 0, 0); // Draw blended image to window |
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8818 | turbocat | 49 | _ksys_end_draw(); |
50 | } |
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51 | |||
52 | int main(){ |
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9558 | turbocat | 53 | if (kolibri_libimg_init() == -1){ |
54 | printf("Error loading lib_img.obj\n"); |
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55 | exit(0); |
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56 | } |
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57 | |||
58 | _ksys_get_system_colors(&sys_color_table); // Get system colors theme |
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8818 | turbocat | 59 | _ksys_set_event_mask(0xC0000027); |
60 | |||
61 | uint32_t img_size; |
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62 | void *file_data = load_img("logo.png", &img_size); // Get RAW data and size |
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63 | if(!file_data){ |
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64 | return 1; |
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65 | } |
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66 | |||
67 | Image* image = img_decode(file_data, img_size, 0); // Decode RAW data to Image data |
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68 | |||
69 | if (image->Type != IMAGE_BPP32) { |
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70 | image = img_convert(image, NULL, IMAGE_BPP32, 0, 0); // Convert image to format BPP32 |
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71 | if (!image) { |
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72 | printf("Сonvert error!: \n"); |
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73 | return 1; |
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74 | } |
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75 | } |
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76 | |||
77 | image_blend = img_create(IMG_W+NEW_IMG_W, IMG_H, IMAGE_BPP32); // Create an empty layer |
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78 | img_fill_color(image_blend, IMG_W+NEW_IMG_W, IMG_H, sys_color_table.work_area); // Fill the layer with one color |
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79 | img_blend(image_blend, image, 0, 0, 0, 0, IMG_W, IMG_H); // Blending images to display the alpha channel. |
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80 | /* Reduce image size from 256x256 to 128x128 */ |
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81 | image = img_scale(image, 0, 0, IMG_W, IMG_H, NULL, LIBIMG_SCALE_STRETCH , LIBIMG_INTER_BILINEAR, NEW_IMG_W, NEW_IMG_H); |
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82 | img_blend(image_blend, image, 256, 0, 0, 0, NEW_IMG_W, NEW_IMG_H); |
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83 | img_destroy(image); // Destroy image structure |
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84 | free(file_data); // Free allocated file_data buffer |
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85 | |||
86 | /* Main event loop */ |
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87 | while (1) { |
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88 | switch(_ksys_get_event()){ |
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89 | case KSYS_EVENT_REDRAW: |
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90 | draw_gui(); |
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91 | break; |
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92 | |||
93 | case KSYS_EVENT_BUTTON: |
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94 | if (_ksys_get_button()==1){ |
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95 | return 0; |
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96 | } |
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97 | break; |
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98 | } |
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99 | } |
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100 | return 0; |
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101 | } |