diff options
Diffstat (limited to 'src/pkg/image/png/writer.go')
| -rw-r--r-- | src/pkg/image/png/writer.go | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/src/pkg/image/png/writer.go b/src/pkg/image/png/writer.go index 06b6dcdc3..e186ca819 100644 --- a/src/pkg/image/png/writer.go +++ b/src/pkg/image/png/writer.go @@ -37,7 +37,7 @@ func opaque(m image.Image) bool { for y := 0; y < m.Height(); y++ { for x := 0; x < m.Width(); x++ { _, _, _, a := m.At(x, y).RGBA() - if a != 0xffffffff { + if a != 0xffff { return false } } @@ -101,13 +101,13 @@ func (e *encoder) writePLTE(p image.PalettedColorModel) { } for i := 0; i < len(p); i++ { r, g, b, a := p[i].RGBA() - if a != 0xffffffff { + if a != 0xffff { e.err = UnsupportedError("non-opaque palette color") return } - e.tmp[3*i+0] = uint8(r >> 24) - e.tmp[3*i+1] = uint8(g >> 24) - e.tmp[3*i+2] = uint8(b >> 24) + e.tmp[3*i+0] = uint8(r >> 8) + e.tmp[3*i+1] = uint8(g >> 8) + e.tmp[3*i+2] = uint8(b >> 8) } e.writeChunk(e.tmp[0:3*len(p)], "PLTE") } @@ -261,9 +261,9 @@ func writeImage(w io.Writer, m image.Image, ct uint8) os.Error { for x := 0; x < m.Width(); x++ { // We have previously verified that the alpha value is fully opaque. r, g, b, _ := m.At(x, y).RGBA() - cr[0][3*x+1] = uint8(r >> 24) - cr[0][3*x+2] = uint8(g >> 24) - cr[0][3*x+3] = uint8(b >> 24) + cr[0][3*x+1] = uint8(r >> 8) + cr[0][3*x+2] = uint8(g >> 8) + cr[0][3*x+3] = uint8(b >> 8) } case ctPaletted: for x := 0; x < m.Width(); x++ { |