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gba gpu view: sprite display

This commit is contained in:
goyuken 2012-11-28 20:33:07 +00:00
parent 798c355c7e
commit bdb2e8222a
1 changed files with 107 additions and 1 deletions
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108
BizHawk.MultiClient/GBAtools/GBAGPUView.cs
View File

@ -22,7 +22,7 @@ namespace BizHawk.MultiClient.GBAtools
// color conversion to RGB888
int[] ColorConversion;
MobileBmpView bg0, bg1, bg2, bg3, bgpal, sppal;
MobileBmpView bg0, bg1, bg2, bg3, bgpal, sppal, sprites;
public GBAGPUView()
{
@ -315,6 +315,108 @@ namespace BizHawk.MultiClient.GBAtools
mbv.bmpView.Refresh();
}
static readonly int[, ,] spritesizes = { { { 1, 1 }, { 2, 2 }, { 4, 4 }, { 8, 8 } }, { { 2, 1 }, { 4, 1 }, { 4, 2 }, { 8, 4 } }, { { 1, 2 }, { 1, 4 }, { 2, 4 }, { 4, 8 } } };
unsafe void DrawSprite(int* dest, int pitch, ushort* sprite, byte* tiles, bool twodee)
{
ushort attr0 = sprite[0];
ushort attr1 = sprite[1];
ushort attr2 = sprite[2];
if (!attr0.Bit(8) && attr0.Bit(9))
return; // 2x with affine off
int tw, th;
int shape = attr0 >> 14;
if (shape == 3)
return;
int size = attr1 >> 14;
tw = spritesizes[shape, size, 0];
th = spritesizes[shape, size, 1];
bool eightbit = attr0.Bit(13);
bool hflip = attr1.Bit(12);
bool vflip = attr1.Bit(13);
ushort* palette = (ushort*)palram + 256;
if (!eightbit)
palette += attr2 >> 12 << 4;
if (!eightbit)
tiles += 32 * (attr2 & 1023);
else
tiles += 32 * (attr2 & 1022);
int tilestride = 0;
if (twodee)
tilestride = 1024 - tw * (eightbit ? 64 : 32);
if (vflip)
dest += pitch * 8 * (th - 1);
if (hflip)
dest += 8 * (tw - 1);
for (int ty = 0; ty < th; ty++)
{
for (int tx = 0; tx < tw; tx++)
{
if (eightbit)
{
DrawTile256(dest, pitch, tiles, palette, hflip, vflip);
tiles += 64;
}
else
{
DrawTile16(dest, pitch, tiles, palette, hflip, vflip);
tiles += 32;
}
if (hflip)
dest -= 8;
else
dest += 8;
}
if (hflip)
dest += tw * 8;
else
dest -= tw * 8;
if (vflip)
dest -= pitch * 8;
else
dest += pitch * 8;
tiles += tilestride;
}
}
unsafe void DrawSprites(MobileBmpView mbv)
{
mbv.bmpView.ChangeBitmapSize(1024, 512);
Bitmap bmp = mbv.bmpView.bmp;
var lockdata = bmp.LockBits(new Rectangle(0, 0, bmp.Width, bmp.Height), System.Drawing.Imaging.ImageLockMode.WriteOnly, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
// Clear()
Win32.MemSet(lockdata.Scan0, 0xff, (uint)(lockdata.Height * lockdata.Stride));
int* pixels = (int*)lockdata.Scan0;
int pitch = lockdata.Stride / sizeof(int);
ushort* sprites = (ushort*)oam;
byte* tiles = (byte*)vram + 65536;
ushort dispcnt = ((ushort*)mmio)[0];
bool twodee = !dispcnt.Bit(6);
for (int sy = 0; sy < 8; sy++)
{
for (int sx = 0; sx < 16; sx++)
{
DrawSprite(pixels, pitch, sprites, tiles, twodee);
pixels += 64;
sprites += 4;
}
pixels -= 1024;
pixels += pitch * 64;
}
bmp.UnlockBits(lockdata);
mbv.bmpView.Refresh();
}
unsafe void DrawPalette(MobileBmpView mbv, bool sprite)
{
mbv.bmpView.ChangeBitmapSize(16, 16);
@ -389,6 +491,7 @@ namespace BizHawk.MultiClient.GBAtools
if (bgpal.ShouldDraw) DrawPalette(bgpal, false);
if (sppal.ShouldDraw) DrawPalette(sppal, true);
if (sprites.ShouldDraw) DrawSprites(sprites);
}
MobileBmpView MakeWidget(string text, int w, int h)
@ -404,6 +507,8 @@ namespace BizHawk.MultiClient.GBAtools
listBoxWidgets.Items.Add(sender);
(sender as Form).Hide();
};
// hackish, and why doesn't winforms handle this directly?
mbv.bmpView.Click += (o, e) => (o as Control).Parent.BringToFront();
panel1.Controls.Add(mbv);
listBoxWidgets.Items.Add(mbv);
return mbv;
@ -418,6 +523,7 @@ namespace BizHawk.MultiClient.GBAtools
bg3 = MakeWidget("Background 3", 256, 256);
bgpal = MakeWidget("Background Palettes", 256, 256);
sppal = MakeWidget("Sprite Palettes", 256, 256);
sprites = MakeWidget("Sprites", 1024, 512);
listBoxWidgets.EndUpdate();
}