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snesgfxdebug-fix 8bpp tile decoding and 16x16 tilemap rendering

This commit is contained in:
zeromus 2012-09-21 08:10:14 +00:00
parent 2d0d57f81d
commit 72d4fefbe0
1 changed files with 10 additions and 4 deletions
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14
BizHawk.Emulation/Consoles/Nintendo/SNES/SNESGraphicsDecoder.cs
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@ -247,6 +247,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
int tileSizeBytes = 8 * bpp;
int baseTileNum = tiledataBaseAddr / tileSizeBytes;
int[] tileCache = _tileCache[bpp];
int tileCacheMask = tileCache.Length - 1;
int screenWidth = dims.Width * count8x8 * 8;
@ -258,7 +259,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
{
for (int ty = 0; ty < count8x8; ty++)
{
int mapIndex = (mty * count8x8 + ty) * dims.Width + mtx * count8x8 + tx;
int mapIndex = mty * dims.Width + mtx;
var te = map[mapIndex];
int tileNum = te.tilenum + tx + ty * 16 + baseTileNum;
int srcOfs = tileNum * 64;
@ -273,7 +274,8 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
int dstX = (mtx * count8x8 + tx) * 8 + px;
int dstY = (mty * count8x8 + ty) * 8 + py;
int dstOfs = dstY * stride + dstX;
int color = tileCache[srcOfs++];
int color = tileCache[srcOfs & tileCacheMask];
srcOfs++;
color += te.palette * ncolors;
color += paletteStart;
screen[dstOfs] = color;
@ -286,7 +288,7 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
}
/// <summary>
/// fetches a tilemap. this is simple; apparently only the screen size (shape) is a factor
/// fetches a tilemap. this is simple; apparently only the screen size (shape) is a factor (not the tile size)
/// </summary>
public TileEntry[] FetchTilemap(int addr, ScreenSize size)
{
@ -367,10 +369,14 @@ namespace BizHawk.Emulation.Consoles.Nintendo.SNES
int numtiles = 8192 / toBpp;
int[] tilesDst = new int[8 * 8 * numtiles];
_tileCache[toBpp] = tilesDst;
int[] tilesSrc = _tileCache[2];
int[] tilesSrc = _tileCache[fromBpp];
for (int i = 0; i < numtiles; i++)
{
if (i == 512)
{
int zzz = 9;
}
int srcAddr = i * 128;
int dstAddr = i * 64;
for (int p = 0; p < 64; p++)