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go-opengl-pixel
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fix bug in Canvas.MakeTriangles

This commit is contained in:
faiface 2017-03-20 23:11:50 +01:00
parent b4adc875d8
commit 4b17773a1a
1 changed files with 14 additions and 9 deletions
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23
pixelgl/canvas.go
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@ -105,11 +105,15 @@ func (c *Canvas) MakePicture(p pixel.Picture) pixel.TargetPicture {
if pd, ok := p.(*pixel.PictureData); ok {
// PictureData short path
for i, nrgba := range pd.Pix {
pixels[i*4+0] = nrgba.R
pixels[i*4+1] = nrgba.G
pixels[i*4+2] = nrgba.B
pixels[i*4+3] = nrgba.A
for y := 0; y < bh; y++ {
for x := 0; x < bw; x++ {
nrgba := pd.Pix[y*pd.Stride+x]
off := (y*bw + x) * 4
pixels[off+0] = nrgba.R
pixels[off+1] = nrgba.G
pixels[off+2] = nrgba.B
pixels[off+3] = nrgba.A
}
}
} else if p, ok := p.(pixel.PictureColor); ok {
for y := 0; y < bh; y++ {
@ -119,10 +123,11 @@ func (c *Canvas) MakePicture(p pixel.Picture) pixel.TargetPicture {
math.Max(float64(by+y), bounds.Min.Y()),
)
color := p.Color(at)
pixels[(y*bw+x)*4+0] = uint8(color.R * 255)
pixels[(y*bw+x)*4+1] = uint8(color.G * 255)
pixels[(y*bw+x)*4+2] = uint8(color.B * 255)
pixels[(y*bw+x)*4+3] = uint8(color.A * 255)
off := (y*bw + x) * 4
pixels[off+0] = uint8(color.R * 255)
pixels[off+1] = uint8(color.G * 255)
pixels[off+2] = uint8(color.B * 255)
pixels[off+3] = uint8(color.A * 255)
}
}
}