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quicknes: implement the crop settings

This commit is contained in:
goyuken 2014-01-10 01:45:06 +00:00
parent db386e4dee
commit adf7f01102
4 changed files with 28 additions and 9 deletions
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2
BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/LibQuickNES.cs
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@ -76,7 +76,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
/// <param name="dest">rgb32 256x240 packed</param>
/// <param name="colors">rgb 24 colors, red first, 512 of them (1536 bytes)</param>
[DllImport(dllname, CallingConvention = CallingConvention.Cdecl)]
public static extern void qn_blit(IntPtr e, IntPtr dest, byte[] colors);
public static extern void qn_blit(IntPtr e, IntPtr dest, byte[] colors, int cropleft, int croptop, int cropright, int cropbottom);
/// <summary>
/// get quicknes's default palette
/// </summary>

22
BizHawk.Emulation.Cores/Consoles/Nintendo/QuickNES/QuickNES.cs
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@ -470,6 +470,7 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
{
Settings = (QuickNESSettings)o;
LibQuickNES.qn_set_sprite_limit(Context, Settings.NumSprites);
RecalculateCrops();
return false;
}
@ -506,6 +507,19 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
GCHandle VideoInputH;
GCHandle VideoOutputH;
int cropleft = 0;
int cropright = 0;
int croptop = 0;
int cropbottom = 0;
void RecalculateCrops()
{
cropright = cropleft = Settings.ClipLeftAndRight ? 8 : 0;
cropbottom = croptop = Settings.ClipTopAndBottom ? 8 : 0;
BufferWidth = 256 - cropleft - cropright;
BufferHeight = 240 - croptop - cropbottom;
}
void InitVideo()
{
int w = 0, h = 0;
@ -519,14 +533,14 @@ namespace BizHawk.Emulation.Cores.Consoles.Nintendo.QuickNES
void Blit()
{
LibQuickNES.qn_blit(Context, VideoOutputH.AddrOfPinnedObject(), Settings.Palette);
LibQuickNES.qn_blit(Context, VideoOutputH.AddrOfPinnedObject(), Settings.Palette, cropleft, croptop, cropright, cropbottom);
}
public IVideoProvider VideoProvider { get { return this; } }
public int[] GetVideoBuffer() { return VideoOutput; }
public int VirtualWidth { get { return 292; } } // probably different on pal
public int BufferWidth { get { return 256; } }
public int BufferHeight { get { return 240; } }
public int VirtualWidth { get { return (int)(BufferWidth * 1.14); } }
public int BufferWidth { get; private set; }
public int BufferHeight { get; private set; }
public int BackgroundColor { get { return unchecked((int)0xff000000); } }
#endregion

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output/dll/libquicknes.dll
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13
quicknes/bizinterface.cpp
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@ -67,20 +67,25 @@ EXPORT const char *qn_emulate_frame(Nes_Emu *e, int pad1, int pad2)
return e->emulate_frame(pad1, pad2);
}
EXPORT void qn_blit(Nes_Emu *e, char *dest, const Nes_Emu::rgb_t *colors)
EXPORT void qn_blit(Nes_Emu *e, char *dest, const Nes_Emu::rgb_t *colors, int cropleft, int croptop, int cropright, int cropbottom)
{
// what is the point of the 256 color bitmap and the dynamic color allocation to it?
// why not just render directly to a 512 color bitmap with static palette positions?
const unsigned char *src = e->frame().pixels;
const int srcpitch = e->frame().pitch;
const unsigned char *srcend = src + e->image_height * srcpitch;
const unsigned char *src = e->frame().pixels;
const unsigned char *const srcend = src + (e->image_height - cropbottom) * srcpitch;
const short *lut = e->frame().palette;
const int rowlen = 256 - cropleft - cropright;
src += cropleft;
src += croptop * srcpitch;
for (; src < srcend; src += srcpitch)
{
for (int i = 0; i < 256; i++)
for (int i = 0; i < rowlen; i++)
{
const Nes_Emu::rgb_t *c = colors + lut[src[i]];
*dest++ = c->blue;