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savestate framebuffer as bmp with customizable size

This commit is contained in:
goyuken 2015-02-02 00:25:50 +00:00
parent df96db1e2d
commit f956b3257f
2 changed files with 85 additions and 9 deletions
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67
BizHawk.Client.Common/QuickBmpFile.cs
View File

@ -24,6 +24,14 @@ namespace BizHawk.Client.Common
{ {
bfSize = (uint)Marshal.SizeOf(this); bfSize = (uint)Marshal.SizeOf(this);
} }
public static BITMAPFILEHEADER FromStream(Stream s)
{
var ret = GetObject<BITMAPFILEHEADER>(s);
if (ret.bfSize != Marshal.SizeOf(typeof(BITMAPFILEHEADER)))
throw new InvalidOperationException();
return ret;
}
} }
[StructLayout(LayoutKind.Sequential)] [StructLayout(LayoutKind.Sequential)]
@ -45,6 +53,14 @@ namespace BizHawk.Client.Common
{ {
biSize = (uint)Marshal.SizeOf(this); biSize = (uint)Marshal.SizeOf(this);
} }
public static BITMAPINFOHEADER FromStream(Stream s)
{
var ret = GetObject<BITMAPINFOHEADER>(s);
if (ret.biSize != Marshal.SizeOf(typeof(BITMAPINFOHEADER)))
throw new InvalidOperationException();
return ret;
}
} }
enum BitmapCompressionMode : uint enum BitmapCompressionMode : uint
@ -68,6 +84,57 @@ namespace BizHawk.Client.Common
return ret; return ret;
} }
private unsafe static T GetObject<T>(Stream s)
{
byte[] tmp = new byte[Marshal.SizeOf(typeof(T))];
s.Read(tmp, 0, tmp.Length);
fixed (byte* p = tmp)
{
return (T)Marshal.PtrToStructure((IntPtr)p, typeof(T));
}
}
public unsafe static bool Load(IVideoProvider v, Stream s)
{
var bf = BITMAPFILEHEADER.FromStream(s);
var bi = BITMAPINFOHEADER.FromStream(s);
if (bf.bfType != 0x4d42
|| bf.bfOffBits != bf.bfSize + bi.biSize
|| bi.biPlanes != 1
|| bi.biBitCount != 32
|| bi.biCompression != BitmapCompressionMode.BI_RGB)
return false;
int in_w = bi.biWidth;
int in_h = bi.biHeight;
byte[] src = new byte[in_w * in_h * 4];
s.Read(src, 0, src.Length);
int[] dst = v.GetVideoBuffer();
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--)
{
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;
}
}
return true;
}
public unsafe static void Save(IVideoProvider v, Stream s, int w, int h) public unsafe static void Save(IVideoProvider v, Stream s, int w, int h)
{ {
var bf = new BITMAPFILEHEADER(); var bf = new BITMAPFILEHEADER();

27
BizHawk.Client.Common/SavestateManager.cs
View File

@ -59,22 +59,31 @@ namespace BizHawk.Client.Common
public static void PopulateFramebuffer(BinaryReader br) public static void PopulateFramebuffer(BinaryReader br)
{ {
var buff = Global.Emulator.VideoProvider().GetVideoBuffer();
try try
{ {
for (int i = 0; i < buff.Length; i++) QuickBmpFile.Load(Global.Emulator.VideoProvider(), br.BaseStream);
{ }
int j = br.ReadInt32(); catch
buff[i] = j; {
} var buff = Global.Emulator.VideoProvider().GetVideoBuffer();
try
{
for (int i = 0; i < buff.Length; i++)
{
int j = br.ReadInt32();
buff[i] = j;
}
}
catch (EndOfStreamException) { }
} }
catch (EndOfStreamException) { }
} }
public static void DumpFramebuffer(BinaryWriter bw) public static void DumpFramebuffer(Stream s)
{ {
bw.Write(Global.Emulator.VideoProvider().GetVideoBuffer()); //bw.Write(Global.Emulator.VideoProvider().GetVideoBuffer());
QuickBmpFile.Save(Global.Emulator.VideoProvider(), s, r.Next(50, 500), r.Next(50, 500));
} }
static Random r = new Random();
public static bool LoadStateFile(string path, string name) public static bool LoadStateFile(string path, string name)
{ {