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Add a TGA image writer

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Patrick Walton 2012-03-27 17:50:53 -07:00
parent 65fea92d7d
commit 228c1cf950
1 changed files with 24 additions and 0 deletions
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24
src/image/encode/tga.rs
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import gfx::surface;
import io::writer_util;
fn encode(writer: io::writer, surface: surface::image_surface) {
assert surface.format == gfx::surface::fo_rgba_8888;
writer.write_u8(0u8); // identsize
writer.write_u8(0u8); // colourmaptype
writer.write_u8(2u8); // imagetype
writer.write_le_u16(0u16); // colourmapstart
writer.write_le_u16(0u16); // colourmaplength
writer.write_u8(16u8); // colourmapbits
writer.write_le_u16(0u16); // xstart
writer.write_le_u16(0u16); // ystart
writer.write_le_u16(surface.size.width as u16); // width
writer.write_le_u16(surface.size.height as u16); // height
writer.write_u8(32u8); // bits
writer.write_u8(0x30u8); // descriptor
writer.write(surface.buffer);
}