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| author | inmarket <andrewh@inmarket.com.au> | 2017-10-02 16:47:18 +1000 |
|---|---|---|
| committer | inmarket <andrewh@inmarket.com.au> | 2017-10-02 16:47:18 +1000 |
| commit | f9be386e52a745d19c880aa035c577bed3eb11c7 (patch) | |
| tree | cf1e220a134e3be514442d44588b9f91c0326931 /src/gdisp/gdisp_colors.h | |
| parent | fdaf636b5f0c7ff5280438f524a07c29a2f7eea6 (diff) | |
| download | uGFX-f9be386e52a745d19c880aa035c577bed3eb11c7.tar.gz uGFX-f9be386e52a745d19c880aa035c577bed3eb11c7.tar.bz2 uGFX-f9be386e52a745d19c880aa035c577bed3eb11c7.zip | |
Add alpha blending support
Diffstat (limited to 'src/gdisp/gdisp_colors.h')
| -rw-r--r-- | src/gdisp/gdisp_colors.h | 9 |
1 files changed, 7 insertions, 2 deletions
diff --git a/src/gdisp/gdisp_colors.h b/src/gdisp/gdisp_colors.h index 5bfcfca2..0973e561 100644 --- a/src/gdisp/gdisp_colors.h +++ b/src/gdisp/gdisp_colors.h @@ -330,9 +330,14 @@ typedef uint16_t colorformat; // Special hack to allow alpha on RGB888 #if GDISP_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888 - #define GFXTRANSPARENT (0xFF000000) + #define COLOR_BITS_A 8 + #define COLOR_SHIFT_A 24 + #define ALPHA_OF(c) (((c)>>24) ^ 0xFF) + #define EXACT_ALPHA_OF(c) ALPHA_OF((c)) #define AHTML2COLOR(h) ((h) ^ 0xFF000000) - #define ARGB2COLOR(a,r,g,b) ((((COLOR_TYPE)(((a) ^ 0xFF) & 0xFF)) << 24) | RGB2COLOR_R(r) | RGB2COLOR_G(g) | RGB2COLOR_B(b)) + #define RGB2COLOR_A(a) (((COLOR_TYPE)(((a) ^ 0xFF) & 0xFF)) << 24) + #define ARGB2COLOR(a,r,g,b) (RGB2COLOR_A(a) | RGB2COLOR_R(r) | RGB2COLOR_G(g) | RGB2COLOR_B(b)) + #define GFXTRANSPARENT (0xFF000000) #endif //------------------------- |