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| author | inmarket <andrewh@inmarket.com.au> | 2013-08-01 14:52:28 +1000 |
|---|---|---|
| committer | inmarket <andrewh@inmarket.com.au> | 2013-08-01 14:52:28 +1000 |
| commit | 9d2b0b667b9bfb2d8b6969ade0ff0bd8d646d7d7 (patch) | |
| tree | 08ee00d6ad2de75976131b2e24053484ff473403 /include | |
| parent | 2d27673f0f45a1b96aa7b9d8de61807fadb020bc (diff) | |
| download | uGFX-9d2b0b667b9bfb2d8b6969ade0ff0bd8d646d7d7.tar.gz uGFX-9d2b0b667b9bfb2d8b6969ade0ff0bd8d646d7d7.tar.bz2 uGFX-9d2b0b667b9bfb2d8b6969ade0ff0bd8d646d7d7.zip | |
Add color blending to GDISP
Diffstat (limited to 'include')
| -rw-r--r-- | include/gdisp/gdisp.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/gdisp/gdisp.h b/include/gdisp/gdisp.h index ac741d3b..ca1844fd 100644 --- a/include/gdisp/gdisp.h +++ b/include/gdisp/gdisp.h @@ -800,6 +800,19 @@ void gdispDrawBox(coord_t x, coord_t y, coord_t cx, coord_t cy, color_t color); void gdispFillRoundedBox(coord_t x, coord_t y, coord_t cx, coord_t cy, coord_t radius, color_t color); #endif + +/** + * @brief Blend 2 colors according to the alpha + * @return The combined color + * + * @param[in] fg The foreground color + * @param[in] bg The background color + * @param[in] alpha The alpha value (0-255). 0 is all background, 255 is all foreground. + * + * @api + */ +color_t gdispBlendColor(color_t fg, color_t bg, uint8_t alpha); + /* Support routine for packed pixel formats */ #if !defined(gdispPackPixels) || defined(__DOXYGEN__) /** |