「App:Library:LVGL:docs:3rd party libraries:GIF decoder」の版間の差分
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ナビゲーションに移動検索に移動| 1行目: | 1行目: | ||
https://docs.lvgl.io/8.2/libs/gif.html | https://docs.lvgl.io/8.2/libs/gif.html | ||
__NOTOC__ | __NOTOC__ | ||
| + | = GIF decoder = | ||
{| class="wikitable" | {| class="wikitable" | ||
!英文 | !英文 | ||
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Allow using GIF images in LVGL. Based on <nowiki>https://github.com/lecram/gifdec</nowiki> | Allow using GIF images in LVGL. Based on <nowiki>https://github.com/lecram/gifdec</nowiki> | ||
| − | When enabled in <code>lv_conf.h</code> with <code>LV_USE_GIF</code> <code>lv_gif_create(parent)</code> can be used to create a gif widget. | + | When enabled in <code style="color: #bb0000;">lv_conf.h</code> with <code style="color: #bb0000;">LV_USE_GIF</code> <code style="color: #bb0000;">lv_gif_create(parent)</code> can be used to create a gif widget. |
| − | <code>lv_gif_set_src(obj, src)</code> works very similarly to <code>lv_img_set_src</code>. As source, it also accepts images as variables (<code>lv_img_dsc_t</code>) or files. | + | <code style="color: #bb0000;">lv_gif_set_src(obj, src)</code> works very similarly to <code style="color: #bb0000;">lv_img_set_src</code>. As source, it also accepts images as variables (<code style="color: #bb0000;">lv_img_dsc_t</code>) or files. |
== Convert GIF files to C array == | == Convert GIF files to C array == | ||
To convert a GIF file to byte values array use LVGL's online converter. Select "Raw" color format and "C array" Output format. | To convert a GIF file to byte values array use LVGL's online converter. Select "Raw" color format and "C array" Output format. | ||
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| + | :[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | ||
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== Use GIF images from file == | == Use GIF images from file == | ||
| + | {| class="wikitable" | ||
| + | !英文 | ||
| + | !自動翻訳 | ||
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For example: | For example: | ||
lv_gif_set_src(obj, "S:path/to/example.gif"); | lv_gif_set_src(obj, "S:path/to/example.gif"); | ||
| − | Note that, a file system driver needs to be registered to open images from files. Read more about it here or just enable one in <code>lv_conf.h</code> with <code>LV_USE_FS_...</code> | + | Note that, a file system driver needs to be registered to open images from files. Read more about it here or just enable one in <code style="color: #bb0000;">lv_conf.h</code> with <code style="color: #bb0000;">LV_USE_FS_...</code> |
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| + | |} | ||
| + | :[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | ||
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== Memory requirements == | == Memory requirements == | ||
| + | {| class="wikitable" | ||
| + | !英文 | ||
| + | !自動翻訳 | ||
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To decode and display a GIF animation the following amount of RAM is required: | To decode and display a GIF animation the following amount of RAM is required: | ||
| − | * <code>LV_COLOR_DEPTH 8</code>: 3 x image width x image height | + | * <code style="color: #bb0000;">LV_COLOR_DEPTH 8</code>: 3 x image width x image height |
| − | * <code>LV_COLOR_DEPTH 16</code>: 4 x image width x image height | + | * <code style="color: #bb0000;">LV_COLOR_DEPTH 16</code>: 4 x image width x image height |
| − | * <code>LV_COLOR_DEPTH 32</code>: 5 x image width x image height | + | * <code style="color: #bb0000;">LV_COLOR_DEPTH 32</code>: 5 x image width x image height |
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| + | |} | ||
| + | :[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | ||
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== Example == | == Example == | ||
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| + | !自動翻訳 | ||
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=== Open a GIF image from file and variable === | === Open a GIF image from file and variable === | ||
| − | [[file:LVGL docs 3rdPartyLibs GifDecoder 01.png|link=https://docs.lvgl.io/8.2/libs/gif.html#open-a-gif-image-from-file-and-variable]] | + | [[file:LVGL docs 3rdPartyLibs GifDecoder 01.png|link=https://docs.lvgl.io/8.2/libs/gif.html#open-a-gif-image-from-file-and-variable]]| |
| + | |} | ||
| + | :[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | ||
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== API == | == API == | ||
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| + | !英文 | ||
| + | !自動翻訳 | ||
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Functions | Functions | ||
| − | ; | + | ; lv_obj_t *lv_gif_create(lv_obj_t *parent) |
: | : | ||
| − | ; | + | ; void lv_gif_set_src(lv_obj_t *obj, const void *src) |
: | : | ||
| − | ; | + | ; void lv_gif_restart(lv_obj_t *gif) |
| − | : | + | : |
Variables | Variables | ||
| − | ; | + | ; const lv_obj_class_t lv_gif_class |
: | : | ||
| − | ; | + | ; struct lv_gif_t |
| − | : | + | : Public Members |
| − | :; | + | :; lv_img_t img |
:: | :: | ||
| − | :; | + | :; gd_GIF *gif |
:: | :: | ||
| − | :; | + | :; lv_timer_t *timer |
:: | :: | ||
| − | :; | + | :; lv_img_dsc_t imgdsc |
:: | :: | ||
| − | :; | + | :; uint32_t last_call |
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| − | + | |} | |
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:[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | :[[App:Library:LVGL:docs:3rd party libraries|戻る : Previous]] | ||
2022年6月29日 (水) 15:39時点における版
https://docs.lvgl.io/8.2/libs/gif.html
GIF decoder
| 英文 | 自動翻訳 |
|---|---|
|
Allow using GIF images in LVGL. Based on https://github.com/lecram/gifdec When enabled in
Convert GIF files to C arrayTo convert a GIF file to byte values array use LVGL's online converter. Select "Raw" color format and "C array" Output format. |
Use GIF images from file
| 英文 | 自動翻訳 |
|---|---|
|
For example: lv_gif_set_src(obj, "S:path/to/example.gif"); Note that, a file system driver needs to be registered to open images from files. Read more about it here or just enable one in |
Memory requirements
| 英文 | 自動翻訳 |
|---|---|
|
To decode and display a GIF animation the following amount of RAM is required:
|
Example
| 英文 | 自動翻訳 |
|---|---|
Open a GIF image from file and variable
|
API
| 英文 | 自動翻訳 |
|---|---|
|
Functions
Variables
|
