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BizHawk
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screenshot: add optimized hotpath for original size screenshots

This commit is contained in:
goyuken 2015-02-17 02:31:56 +00:00
parent ad08c0abfb
commit 30fea2e6a7
2 changed files with 75 additions and 31 deletions
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103
BizHawk.Client.Common/QuickBmpFile.cs
View File

@ -94,6 +94,55 @@ namespace BizHawk.Client.Common
}
}
unsafe struct BMP
{
public int* Data;
public int Width;
public int Height;
}
static void Blit(BMP src, BMP dst)
{
if (src.Width == dst.Width && src.Height == dst.Height)
Blit_Same(src, dst);
else
Blit_Any(src, dst);
}
unsafe static void Blit_Same(BMP src, BMP dst)
{
int* sp = src.Data + src.Width * (src.Height - 1);
int* dp = dst.Data;
for (int j = 0; j < src.Height; j++)
{
for (int i = 0; i < src.Width; i++)
dp[i] = sp[i];
sp -= src.Width;
dp += src.Width;
}
}
unsafe static void Blit_Any(BMP src, BMP dst)
{
int w = dst.Width;
int h = dst.Height;
int in_w = src.Width;
int in_h = src.Height;
int* sp = src.Data;
int* dp = dst.Data;
// vflip along the way
for (int j = h - 1; j >= 0; j--)
{
sp = src.Data + in_w * (j * in_h / h);
for (int i = 0; i < w; i++)
{
dp[i] = sp[i * in_w / w];
}
dp += w;
}
}
public unsafe static bool Load(IVideoProvider v, Stream s)
{
var bf = BITMAPFILEHEADER.FromStream(s);
@ -114,22 +163,19 @@ namespace BizHawk.Client.Common
fixed (byte *srcp = src)
fixed (int* dstp = dst)
{
int w = v.BufferWidth;
int h = v.BufferHeight;
int* sp = (int*)srcp;
int* dp = dstp;
// vflip along the way
for (int j = h - 1; j >= 0; j--)
using (new BizHawk.Common.SimpleTime("Blit"))
Blit(new BMP
{
sp = (int*)srcp + in_w * (j * in_h / h);
for (int i = 0; i < w; i++)
{
dp[i] = sp[i * in_w / w];
}
dp += w;
}
Data = (int*)srcp,
Width = in_w,
Height = in_h
},
new BMP
{
Data = dstp,
Width = v.BufferWidth,
Height = v.BufferHeight,
});
}
return true;
@ -161,22 +207,19 @@ namespace BizHawk.Client.Common
fixed (int* srcp = src)
fixed (byte* dstp = dst)
{
int in_w = v.BufferWidth;
int in_h = v.BufferHeight;
int* sp = srcp;
int* dp = (int*)dstp;
// vflip along the way
for (int j = h - 1; j >= 0; j--)
using (new BizHawk.Common.SimpleTime("Blit"))
Blit(new BMP
{
sp = srcp + in_w * (j * in_h / h);
for (int i = 0; i < w; i++)
{
dp[i] = sp[i * in_w / w];
}
dp += w;
}
Data = srcp,
Width = v.BufferWidth,
Height = v.BufferHeight
},
new BMP
{
Data = (int*)dstp,
Width = w,
Height = h,
});
}
s.Write(dst, 0, dst.Length);

3
BizHawk.Client.Common/SavestateManager.cs
View File

@ -67,7 +67,8 @@ namespace BizHawk.Client.Common
{
try
{
QuickBmpFile.Load(Global.Emulator.VideoProvider(), br.BaseStream);
using (new SimpleTime("Load Framebuffer"))
QuickBmpFile.Load(Global.Emulator.VideoProvider(), br.BaseStream);
}
catch
{