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fosphor/gl_cmap_gen: Introduce a helper to set RGBA values from float R,G,B 

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
This commit is contained in:
Sylvain Munaut 2014-07-22 09:20:16 +02:00
parent 4c08178d89
commit 5d9665c000
1 changed files with 13 additions and 7 deletions
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20
lib/fosphor/gl_cmap_gen.c
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@ -100,12 +100,23 @@ done:
rgb[2] = b;
}
static inline void
_set_rgba_from_rgb(uint32_t *rgba, float r, float g, float b)
{
unsigned char rc,gc,bc,ac;
rc = (unsigned char) roundf(r * 255.0f);
gc = (unsigned char) roundf(g * 255.0f);
bc = (unsigned char) roundf(b * 255.0f);
ac = 255;
*rgba = (ac << 24) | (bc << 16) | (gc << 8) | rc;
}
static inline void
_set_rgba_from_hsv(uint32_t *rgba, float h, float s, float v)
{
float hsv[3], rgb[3];
unsigned char r,g,b,a;
hsv[0] = h;
hsv[1] = s;
@ -113,12 +124,7 @@ _set_rgba_from_hsv(uint32_t *rgba, float h, float s, float v)
_hsv2rgb(rgb, hsv);
r = (unsigned char) roundf(rgb[0] * 255.0f);
g = (unsigned char) roundf(rgb[1] * 255.0f);
b = (unsigned char) roundf(rgb[2] * 255.0f);
a = 255;
*rgba = (a << 24) | (b << 16) | (g << 8) | r;
_set_rgba_from_rgb(rgba, rgb[0], rgb[1], rgb[2]);
}