openstack
/
deb-spice-html5
Code Issues Proposed changes

Handling non-topdown lz_rgb 

Signed-off-by: Vincent Desprez <vincent.desprez@apwise.com>
This commit is contained in:
Vincent Desprez 2017-01-10 22:54:56 +01:00 committed by Jeremy White
parent 2fa7c65144
commit bfa85a7117
2 changed files with 16 additions and 3 deletions
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3
display.js
View File

@ -288,9 +288,6 @@ SpiceDisplayConn.prototype.process_channel_message = function(msg)
return false;
}
if (draw_copy.data.src_bitmap.lz_rgb.top_down != 1)
this.log_warn("FIXME: Implement non top down support for lz_rgb");
var source_img = convert_spice_lz_to_web(canvas.context,
draw_copy.data.src_bitmap.lz_rgb);
if (! source_img)

16
lz.js
View File

@ -141,6 +141,19 @@ function lz_rgb32_decompress(in_buf, at, out_buf, type, default_alpha)
return encoder - 1;
}
function flip_image_data(img)
{
var wb = img.width * 4;
var h = img.height;
var temp_h = h;
var buff = new Uint8Array(img.width * img.height * 4);
while (temp_h--)
{
buff.set(img.data.subarray(temp_h * wb, (temp_h + 1) * wb), (h - temp_h - 1) * wb);
}
img.data.set(buff);
}
function convert_spice_lz_to_web(context, lz_image)
{
var at;
@ -150,6 +163,9 @@ function convert_spice_lz_to_web(context, lz_image)
var ret = context.createImageData(lz_image.width, lz_image.height);
at = lz_rgb32_decompress(u8, 0, ret.data, LZ_IMAGE_TYPE_RGB32, lz_image.type != LZ_IMAGE_TYPE_RGBA);
if (!lz_image.top_down)
flip_image_data(ret);
if (lz_image.type == LZ_IMAGE_TYPE_RGBA)
lz_rgb32_decompress(u8, at, ret.data, LZ_IMAGE_TYPE_RGBA, false);
}