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(IarOpener.CombineImage): take image offsets into account.

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This commit is contained in:
morkt 2016-10-18 17:24:46 +04:00
parent e8d2dcf03a
commit 59f560be14
1 changed files with 5 additions and 1 deletions
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6
ArcFormats/Sas5/ArcIAR.cs
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@ -175,6 +175,7 @@ namespace GameRes.Formats.Sas5
int diff_count = input.ReadInt32();
var overlay_info = overlay.Info;
int pixel_size = overlay_info.BPP / 8;
var base_image = new IarImage (iarc, dir[base_index]);
byte[] output = base_image.Data;
if (overlay_info.Height != base_image.Info.Height || overlay_info.Stride != base_image.Info.Stride)
@ -184,13 +185,16 @@ namespace GameRes.Formats.Sas5
byte[] src = base_image.Data;
output = new byte[overlay_info.Height * overlay_info.Stride];
int dst_pos = 0;
if (base_image.Info.OffsetY < overlay_info.OffsetY)
dst_pos += (-base_image.Info.OffsetY + overlay_info.OffsetY) * overlay_info.Stride;
if (base_image.Info.OffsetX < overlay_info.OffsetX)
dst_pos += (-base_image.Info.OffsetX + overlay_info.OffsetX) * pixel_size;
for (int y = 0; y < src_height; ++y)
{
Buffer.BlockCopy (src, y * base_image.Info.Stride, output, dst_pos, src_stride);
dst_pos += overlay_info.Stride;
}
}
int pixel_size = overlay_info.BPP / 8;
int dst = diff_y * overlay_info.Stride;
for (int i = 0; i < diff_count; ++i)
{