Rev 9620 | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8818 | turbocat | 1 | /* Written by turbocat2001 (Logaev Maxim) */ |
| 2 | |||
| 9766 | turbocat | 3 | #include |
| 4 | #include |
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| 8818 | turbocat | 5 | #include |
| 6 | #include |
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| 7 | #include |
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| 8 | |||
| 9766 | turbocat | 9 | #define NEW_IMG_H 128 |
| 8818 | turbocat | 10 | #define NEW_IMG_W 128 |
| 11 | |||
| 12 | #define IMG_H 256 |
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| 13 | #define IMG_W 256 |
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| 14 | |||
| 9766 | turbocat | 15 | Image* image_blend; // Create image struct |
| 8818 | turbocat | 16 | |
| 9766 | turbocat | 17 | ksys_colors_table_t sys_color_table; // Create system colors table |
| 8818 | turbocat | 18 | |
| 9766 | turbocat | 19 | void* load_img(char* fname, uint32_t* read_sz) |
| 20 | { // Image file upload function |
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| 21 | FILE* f = fopen(fname, "rb"); |
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| 8818 | turbocat | 22 | if (!f) { |
| 23 | printf("Can't open file: %s\n", fname); |
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| 24 | return NULL; |
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| 25 | } |
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| 26 | if (fseek(f, 0, SEEK_END)) { |
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| 27 | printf("Can't SEEK_END file: %s\n", fname); |
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| 28 | return NULL; |
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| 29 | } |
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| 30 | int filesize = ftell(f); |
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| 31 | rewind(f); |
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| 32 | void* fdata = malloc(filesize); |
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| 9766 | turbocat | 33 | if (!fdata) { |
| 8818 | turbocat | 34 | printf("No memory for file %s\n", fname); |
| 35 | return NULL; |
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| 36 | } |
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| 37 | *read_sz = fread(fdata, 1, filesize, f); |
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| 38 | if (ferror(f)) { |
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| 39 | printf("Error reading file %s\n", fname); |
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| 40 | return NULL; |
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| 41 | } |
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| 42 | fclose(f); |
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| 43 | return fdata; |
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| 44 | } |
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| 45 | |||
| 9766 | turbocat | 46 | void draw_gui() |
| 47 | { |
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| 8818 | turbocat | 48 | _ksys_start_draw(); |
| 9766 | turbocat | 49 | _ksys_create_window(10, 40, (IMG_W + NEW_IMG_W) + 50, IMG_H + 50, "Libimg", sys_color_table.work_area, 0x34); |
| 50 | img_draw(image_blend, 10, 10, IMG_W * 2, IMG_H, 0, 0); // Draw blended image to window |
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| 8818 | turbocat | 51 | _ksys_end_draw(); |
| 52 | } |
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| 53 | |||
| 9766 | turbocat | 54 | int main() |
| 55 | { |
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| 9620 | turbocat | 56 | _ksys_get_system_colors(&sys_color_table); // Get system colors theme |
| 8818 | turbocat | 57 | _ksys_set_event_mask(0xC0000027); |
| 9766 | turbocat | 58 | |
| 59 | uint32_t img_size; |
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| 60 | void* file_data = load_img("logo.png", &img_size); // Get RAW data and size |
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| 61 | if (!file_data) { |
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| 8818 | turbocat | 62 | return 1; |
| 63 | } |
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| 64 | |||
| 65 | Image* image = img_decode(file_data, img_size, 0); // Decode RAW data to Image data |
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| 9766 | turbocat | 66 | |
| 67 | if (image->Type != IMAGE_BPP32) { |
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| 8818 | turbocat | 68 | image = img_convert(image, NULL, IMAGE_BPP32, 0, 0); // Convert image to format BPP32 |
| 69 | if (!image) { |
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| 9766 | turbocat | 70 | printf("Сonvert error!: \n"); |
| 8818 | turbocat | 71 | return 1; |
| 72 | } |
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| 73 | } |
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| 9766 | turbocat | 74 | |
| 75 | image_blend = img_create(IMG_W + NEW_IMG_W, IMG_H, IMAGE_BPP32); // Create an empty layer |
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| 76 | 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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| 77 | img_blend(image_blend, image, 0, 0, 0, 0, IMG_W, IMG_H); // Blending images to display the alpha channel. |
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| 8818 | turbocat | 78 | /* Reduce image size from 256x256 to 128x128 */ |
| 9766 | turbocat | 79 | image = img_scale(image, 0, 0, IMG_W, IMG_H, NULL, LIBIMG_SCALE_STRETCH, LIBIMG_INTER_BILINEAR, NEW_IMG_W, NEW_IMG_H); |
| 80 | img_blend(image_blend, image, 256, 0, 0, 0, NEW_IMG_W, NEW_IMG_H); |
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| 81 | img_destroy(image); // Destroy image structure |
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| 82 | free(file_data); // Free allocated file_data buffer |
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| 83 | |||
| 8818 | turbocat | 84 | /* Main event loop */ |
| 9766 | turbocat | 85 | while (1) { |
| 86 | switch (_ksys_get_event()) { |
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| 87 | case KSYS_EVENT_REDRAW: |
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| 88 | draw_gui(); |
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| 89 | break; |
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| 90 | |||
| 91 | case KSYS_EVENT_BUTTON: |
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| 92 | if (_ksys_get_button() == 1) { |
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| 93 | return 0; |
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| 94 | } |
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| 95 | break; |
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| 8818 | turbocat | 96 | } |
| 9766 | turbocat | 97 | } |
| 98 | return 0; |
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| 8818 | turbocat | 99 | } |