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Merge branch 'master' into scanline-offsets

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Lucas Scharenbroich 2022-12-04 15:49:47 -06:00
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25
docs/toolboxref.html
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@ -1234,9 +1234,18 @@ style: toolref
</p>
<p>
A tile set is an array of (up to) 512 tile definitions and each tile definition is 128 bytes. The tile definition
is comprised of four, 32-byte tiles; a normal tile, its mask, a horizontally flipped versio of the tile and its mask.
is comprised of four, 32-byte tiles; a normal tile, its mask, a horizontally flipped version of the tile and its mask.
The first 128 bytes of a tileset must be set to zero.
</p>
<p>
The <em>start</em> and <em>finish</em> parameters define a subset of tiles to be copied into the GTE memory
buffer. This is most commonly used to load a small number of tiles to avoid needing to store a full set of 512
tiles that are mostly unushed. For eample, loading in 16 tiles can be performed as <tt>GTELoadTileSet(0, 17, tilePtr)</tt>.
</p>
<p>
This function can also be used to swap out subsets of tiles on the fly. Any tiles that are replaced which may
be on-screen are not automatically refreshed.
</p>
<div class="section">
<h5>Parameters</h5>
<table class="stack">
@ -1252,6 +1261,16 @@ style: toolref
<tr>
<td class="top">previous contents</td>
</tr>
<tr>
<td class="bot">start</td>
<td></td>
<td><em>Word</em>&mdash;index of the first tile to copy</td>
</tr>
<tr>
<td class="bot">finish</td>
<td></td>
<td><em>Word</em>&mdash;terminating index. This tile is not copied.</td>
</tr>
<tr>
<td class="bot">tileSetPtr</td>
<td></td>
@ -1292,7 +1311,9 @@ style: toolref
</div>
<div class="section">
<h5>C</h5>
<p><tt>extern pascal void GTELoadTileSet(tileSetPtr)</tt></p>
<p><tt>extern pascal void GTELoadTileSet(start, finish, tileSetPtr)</tt></p>
<p><tt>Word start;</tt></p>
<p><tt>Word finish;</tt></p>
<p><tt>Pointer tileSetPtr;</tt></p>
</div>
</div>