import gpu_unai from PCSX4ALL project

1 files changed, 133 insertions, 0 deletions

diff --git a/plugins/gpu_unai/gpu_raster_sprite.h b/plugins/gpu_unai/gpu_raster_sprite.h
new file mode 100644
index 0000000..041fcbd
--- /dev/null
+++ b/plugins/gpu_unai/gpu_raster_sprite.h
@@ -0,0 +1,133 @@
+/***************************************************************************
+*   Copyright (C) 2010 PCSX4ALL Team                                      *
+*   Copyright (C) 2010 Unai                                               *
+*                                                                         *
+*   This program is free software; you can redistribute it and/or modify  *
+*   it under the terms of the GNU General Public License as published by  *
+*   the Free Software Foundation; either version 2 of the License, or     *
+*   (at your option) any later version.                                   *
+*                                                                         *
+*   This program is distributed in the hope that it will be useful,       *
+*   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+*   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+*   GNU General Public License for more details.                          *
+*                                                                         *
+*   You should have received a copy of the GNU General Public License     *
+*   along with this program; if not, write to the                         *
+*   Free Software Foundation, Inc.,                                       *
+*   51 Franklin Street, Fifth Floor, Boston, MA 02111-1307 USA.           *
+***************************************************************************/
+
+///////////////////////////////////////////////////////////////////////////////
+//  GPU internal sprite drawing functions
+
+///////////////////////////////////////////////////////////////////////////////
+void gpuDrawS(const PS gpuSpriteSpanDriver)
+{
+	s32 x0, x1;
+	s32 y0, y1;
+	s32 u0;
+	s32 v0;
+
+	x1 = x0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[2]) + DrawingOffset[0];
+	y1 = y0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[3]) + DrawingOffset[1];
+	x1+= PacketBuffer.S2[6];
+	y1+= PacketBuffer.S2[7];
+
+	{
+		s32 xmin, xmax;
+		s32 ymin, ymax;
+		xmin = DrawingArea[0];	xmax = DrawingArea[2];
+		ymin = DrawingArea[1];	ymax = DrawingArea[3];
+
+		{
+			int rx0 = Max2(xmin,Min2(x0,x1));
+			int ry0 = Max2(ymin,Min2(y0,y1));
+			int rx1 = Min2(xmax,Max2(x0,x1));
+			int ry1 = Min2(ymax,Max2(y0,y1));
+			if( rx0>=rx1 || ry0>=ry1) return;
+		}
+
+		u0 = PacketBuffer.U1[8];
+		v0 = PacketBuffer.U1[9];
+
+		r4 = s32(PacketBuffer.U1[0]);
+		g4 = s32(PacketBuffer.U1[1]);
+		b4 = s32(PacketBuffer.U1[2]);
+
+		{
+			s32 temp;
+			temp = ymin - y0;
+			if (temp > 0) { y0 = ymin; v0 += temp; }
+			if (y1 > ymax) y1 = ymax;
+			if (y1 <= y0) return;
+			
+			temp = xmin - x0;
+			if (temp > 0) { x0 = xmin; u0 += temp; }
+			if (x1 > xmax) x1 = xmax;
+			x1 -= x0;
+			if (x1 <= 0) return;
+		}
+	}
+
+	{
+		u16 *Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
+		const int li=linesInterlace;
+		const u32 masku=TextureWindow[2];
+		const u32 maskv=TextureWindow[3];
+
+		for (;y0<y1;++y0) {
+			if( 0 == (y0&li) ) gpuSpriteSpanDriver(Pixel,x1,FRAME_OFFSET(u0,v0),masku);
+			Pixel += FRAME_WIDTH;
+			v0 = (v0+1)&maskv;
+		}
+	}
+}
+
+///////////////////////////////////////////////////////////////////////////////
+void gpuDrawT(const PT gpuTileSpanDriver)
+{
+	s32 x0, y0;
+	s32 x1, y1;
+
+	x1 = x0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[2]) + DrawingOffset[0];
+	y1 = y0 = GPU_EXPANDSIGN_SPRT(PacketBuffer.S2[3]) + DrawingOffset[1];
+	x1+= PacketBuffer.S2[4];
+	y1+= PacketBuffer.S2[5];
+
+	{
+		s32 xmin, xmax;
+		s32 ymin, ymax;
+		xmin = DrawingArea[0];	xmax = DrawingArea[2];
+		ymin = DrawingArea[1];	ymax = DrawingArea[3];
+
+		{
+			int rx0 = Max2(xmin,Min2(x0,x1));
+			int ry0 = Max2(ymin,Min2(y0,y1));
+			int rx1 = Min2(xmax,Max2(x0,x1));
+			int ry1 = Min2(ymax,Max2(y0,y1));
+			if(rx0>=rx1 || ry0>=ry1) return;
+		}
+
+		if (y0 < ymin) y0 = ymin;
+		if (y1 > ymax) y1 = ymax;
+		if (y1 <= y0) return;
+
+		if (x0 < xmin) x0 = xmin;
+		if (x1 > xmax) x1 = xmax;
+		x1 -= x0;
+		if (x1 <= 0) return;
+	}
+	
+	{
+		u16 *Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
+		const u16 Data = GPU_RGB16(PacketBuffer.U4[0]);
+		const int li=linesInterlace;
+
+		for (; y0<y1; ++y0)
+		{
+			if( 0 == (y0&li) ) gpuTileSpanDriver(Pixel,x1,Data);
+			Pixel += FRAME_WIDTH;
+		}
+	}
+}