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x.ttf: add README, some improvements (#8157)

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penguindark
2021-01-17 03:11:47 +01:00
committed by GitHub
parent 5ae55731b9
commit ee9f9c9d81
5 changed files with 380 additions and 57 deletions
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32
vlib/x/ttf/render_sokol_cpu.v
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@@ -32,37 +32,7 @@ pub mut:
*
******************************************************************************/
fn (mut tf_skl TTF_render_Sokol) format_texture(){
r := byte(tf_skl.bmp.color >> 24)
g := byte((tf_skl.bmp.color >> 16) & 0xFF)
b := byte((tf_skl.bmp.color >> 8 ) & 0xFF)
a := byte(tf_skl.bmp.color & 0xFF)
b_r := byte(tf_skl.bmp.bg_color >> 24)
b_g := byte((tf_skl.bmp.bg_color >> 16) & 0xFF)
b_b := byte((tf_skl.bmp.bg_color >> 8 ) & 0xFF)
b_a := byte(tf_skl.bmp.bg_color & 0xFF)
// trasform buffer in a texture
x := byteptr(tf_skl.bmp.buf)
unsafe{
mut i := 0
for i<tf_skl.bmp.buf_size {
data := x[i]
if data > 0 {
x[i+0] = r
x[i+1] = g
x[i+2] = b
// alpha
x[i+3] = byte((a * data) >> 8)
} else {
x[i+0] = b_r
x[i+1] = b_g
x[i+2] = b_b
x[i+3] = b_a
}
i += 4
}
}
tf_skl.bmp.format_texture()
}
pub