Skip to content

Commit

Permalink
add bmpv5 based on Sam's post and docs
Browse files Browse the repository at this point in the history
  • Loading branch information
@lynxlynxlynx
lynxlynxlynx committed May 15, 2024
1 parent 23e7429 commit d5a53af
Show file tree
Hide file tree
Showing 2 changed files with 259 additions and 1 deletion.
258 changes: 258 additions & 0 deletions file_formats/ie_formats/bmp_v5.htm
View file
Original file line number Diff line number Diff line change
@@ -0,0 +1,258 @@
---
title: "BMPv5 file format"
---
<div class="title_main">BMP file format</div>
<br />
<div class="fileHeader">Applies to:</div>
<div class="indent1">BG(2):EE, IWD:EE, PST:EE</div>
<br />

<div class="fileHeader">General Description</div>
<a href="https://docs.microsoft.com/en-us/windows/desktop/api/wingdi/ns-wingdi-bitmapv5header">Microsoft format documentation</a><br />
The Enhanced editions support also version 5 of the BMP format. It is <a href="../bmp.htm">largely the same as version 1</a> used by the original games, but supports 32-bit colors (still 8 bits per channel, but adds one for alpha).<br />
<br />
<hr />
<br />
<a name="header">Header format</a><br />
<br />
<table border="1" width="98%">
<tbody>
<tr>
<th colspan="3">Name</th>
<th>Size</th>
<th>Description</th>
</tr>
<tr>
<td>0x00</td>
<td colspan="2">Signature</td>
<td>2 bytes</td>
<td>'BM'</td>
</tr>
<tr>
<td>0x02</td>
<td colspan="2">FileSize</td>
<td>4 bytes</td>
<td>File size in bytes</td>
</tr>
<tr>
<td>0x06</td>
<td colspan="2">2 reserved words</td>
<td>4 bytes</td>
<td>unused (=0)</td>
</tr>
<tr>
<td>0x0a</td>
<td colspan="2">DataOffset</td>
<td>4 bytes</td>
<td>File offset to Raster Data</td>
</tr>

<tr>
<td>0x0e</td>
<td colspan="2">Size</td>
<td>4 bytes</td>
<td>Size of InfoHeader =40&nbsp;</td>
</tr>
<tr>
<td>0x12</td>
<td colspan="2">Width</td>
<td>4 bytes</td>
<td>Bitmap Width</td>
</tr>
<tr>
<td>0x16</td>
<td colspan="2">Height</td>
<td>4 bytes</td>
<td>Bitmap Height</td>
</tr>
<tr>
<td>0x1a</td>
<td colspan="2">Planes</td>
<td>2 bytes</td>
<td>Number of Planes (=1)</td>
</tr>
<tr>
<td>0x1c</td>
<td colspan="2">BitCount</td>
<td>2 bytes</td>
<td>Bits per Pixel</td>
</tr>
<tr>
<td>0x1e</td>
<td colspan="2">Compression</td>
<td>4 bytes</td>
<td>Type of Compression: BI_RGB (uncompressed), BI_BITFIELDS (uncompressed with color masks), BI_RLE4 / BI_RLE8 (with runtime encoding)</td>
</tr>
<tr>
<td>0x22</td>
<td colspan="2">ImageSize</td>
<td>4 bytes</td>
<td>(compressed) Size of Image&nbsp;<br />
It is valid to set this =0 if
Compression = 0</td>
</tr>
<tr>
<td>0x26</td>
<td colspan="2">XpixelsPerM</td>
<td>4 bytes</td>
<td>horizontal resolution:
Pixels/meter</td>
</tr>
<tr>
<td>0x2a</td>
<td colspan="2">YpixelsPerM</td>
<td>4 bytes</td>
<td>vertical resolution: Pixels/meter</td>
</tr>
<tr>
<td>0x2e</td>
<td colspan="2">ColorsUsed</td>
<td>4 bytes</td>
<td>Number of actually used colors</td>
</tr>
<tr>
<td>0x32</td>
<td colspan="2">ColorsImportant</td>
<td>4 bytes</td>
<td>Number of important colors&nbsp;<br />
0 = all</td>
</tr>

<tr>
<td>0x36</td>
<td colspan="3">Color masks</td>
<td></td>
<td></td>
</tr>
<tr>
<td rowspan="5">&nbsp;</td>
<td rowspan="4">&nbsp;</td>
<td>Red mask</td>
<td>4 bytes</td>
<td>Mask identifying bits of red component</td>
</tr>
<tr>
<td>Green mask</td>
<td>4 bytes</td>
<td>Mask identifying bits of green component</td>
</tr>
<tr>
<td>Blue mask</td>
<td>4 bytes</td>
<td>Mask identifying bits of blue component</td>
</tr>
<tr>
<td>Alpha mask</td>
<td>4 bytes</td>
<td>Mask identifying bits of alpha component</td>
</tr>

<tr>
<td>0x46</td>
<td>CSType</td>
<td>4 bytes</td>
<td>Color space type</td>
</tr>
<tr>
<td>0x4a</td>
<td>RedX</td>
<td>4 bytes</td>
<td>X coordinate of red endpoin</td>
</tr>
<tr>
<td>0x4e</td>
<td>RedY</td>
<td>4 bytes</td>
<td>Y coordinate of red endpoin</td>
</tr>
<tr>
<td>0x52</td>
<td>RedZ</td>
<td>4 bytes</td>
<td>Z coordinate of red endpoin</td>
</tr>
<tr>
<td>0x56</td>
<td>GreenX</td>
<td>4 bytes</td>
<td>X coordinate of green endpoint</td>
</tr>
<tr>
<td>0x5a</td>
<td>GreenY</td>
<td>4 bytes</td>
<td>Y coordinate of green endpoint</td>
</tr>
<tr>
<td>0x5e</td>
<td>GreenZ</td>
<td>4 bytes</td>
<td>Z coordinate of green endpoint</td>
</tr>
<tr>
<td>0x62</td>
<td>BlueX</td>
<td>4 bytes</td>
<td>X coordinate of blue endpoint</td>
</tr>
<tr>
<td>0x66</td>
<td>BlueY</td>
<td>4 bytes</td>
<td>Y coordinate of blue endpoint</td>
</tr>
<tr>
<td>0x6a</td>
<td>BlueZ</td>
<td>4 bytes</td>
<td>Z coordinate of blue endpoint</td>
</tr>
<tr>
<td>0x6e</td>
<td>GammaRed</td>
<td>4 bytes</td>
<td>Gamma red coordinate scale value</td>
</tr>
<tr>
<td>0x72</td>
<td>GammaGreen</td>
<td>4 bytes</td>
<td>Gamma green coordinate scale value</td>
</tr>
<tr>
<td>0x76</td>
<td>GammaBlue</td>
<td>4 bytes</td>
<td>Gamma blue coordinate scale value</td>
</tr>
<tr>
<td>0x7a</td>
<td>Intent</td>
<td>4 bytes</td>
<td>Rendering intent for bitmap</td>
</tr>
<tr>
<td>0x7e</td>
<td>ProfileData</td>
<td>4 bytes</td>
<td>Offset to profile data</td>
</tr>
<tr>
<td>0x82</td>
<td>ProfileSize</td>
<td>4 bytes</td>
<td>Size of embedded profile data</td>
</tr>
<tr>
<td>0x86</td>
<td>Reserved3</td>
<td>4 bytes</td>
<td></td>
</tr>

</tbody>
</table>

</div>
</div>

2 changes: 1 addition & 1 deletion file_formats/index.htm
View file
Original file line number Diff line number Diff line change
Expand Up @@ -13,7 +13,7 @@
BAM&nbsp; <span class="indent1"> <a href="ie_formats/bam_v1.htm"> Version 1</a> || <a href="ie_formats/bam_v2.htm"> Version 2</a></span><br />
BCS&nbsp; <span class="indent1"> <a href="ie_formats/bcs.htm"> Version 1</a></span><br />
BIF&nbsp; <span class="indent1"> <a href="ie_formats/bif_v1.htm"> Version 1</a></span><br />
BMP&nbsp; <span class="indent1"> <a href="ie_formats/bmp.htm"> Version 1</a></span><br />
BMP&nbsp; <span class="indent1"> <a href="ie_formats/bmp.htm"> Version 1</a> || <a href="ie_formats/bmp_v5.htm"> Version 5</a></span><br />
CHR&nbsp; <span class="indent1"> <a href="ie_formats/chr_v1.htm"> Version 1</a> || <a href="ie_formats/chr_v1.2.htm"> Version 1.2</a> || <a href="ie_formats/chr_v2.htm"> Version 2</a> || <a href="ie_formats/chr_v2.2.htm"> Version 2.2</a> || <a href="ie_formats/chr_v9.htm"> Version 9</a></span><br />
CHU&nbsp; <span class="indent1"> <a href="ie_formats/chu_v1.htm"> Version 1</a></span><br />
CRE&nbsp; <span class="indent1"> <a href="ie_formats/cre_v1.htm"> Version 1</a> || <a href="ie_formats/cre_v1.2.htm"> Version 1.2</a> || <a href="ie_formats/cre_v2.2.htm"> Version 2.2</a> || <a href="ie_formats/cre_v9.htm"> Version 9</a></span><br />
Expand Down

0 comments on commit d5a53af

Please sign in to comment.