void gpuDrawT(void)
{
s32 xmin, xmax;
s32 ymin, ymax;
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];
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;
//AddDirtyArea(rx0,ry0,rx1,ry1);
if(isSkip) return;
PixelData = GPU_RGB16(PacketBuffer.U4[0]);
if (y0 < ymin)
y0 = ymin;
if (y1 > ymax)
y1 = ymax;
if (x0 < xmin)
x0 = xmin;
if (x1 > xmax)
x1 = xmax;
x1 -= x0;
if (x1 < 0)
x1 = 0;
Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
for (; y0<y1; ++y0)
{
PixelEnd = Pixel+x1;
if( 0 == (y0&linesInterlace) )
gpuSpriteSpanDriver();
Pixel += FRAME_WIDTH;
}
}
/*
* for better cleannes, dirty_tty()
* should be used *before* actually touching Win->Contents[]
*/
static void dirty_tty(dat x1, dat y1, dat x2, dat y2) {
byte i;
ldat S[2] = {0, 0};
dat xy[2][4];
if (dirtyN == TW_MAXBYTE || x1 > x2 || x1 >= SizeX || y1 > y2 || y1 >= SizeY)
return;
x2 = Min2(x2, SizeX-1);
y2 = Min2(y2, SizeY-1);
for (i=0; i<dirtyN; i++) {
xy[i][0] = Min2(dirty[i][0], x1);
xy[i][1] = Min2(dirty[i][1], y1);
xy[i][2] = Max2(dirty[i][2], x2);
xy[i][3] = Max2(dirty[i][3], y2);
S[i] += (xy[0][2] - xy[0][0] + 1) * (xy[0][3] - xy[0][1] + 1);
S[!i] += dirtyS[i];
}
if (dirtyN < 2)
S[dirtyN] += (x2-x1+1)*(y2-y1+1);
i = dirtyN && S[0] > S[1];
if (S[i] >= SizeX*SizeY*3/4) {
dirtyN = TW_MAXBYTE;
return;
} else if (i < dirtyN) {
CopyMem(xy[i], dirty[i], 4*sizeof(dat));
} else {
dirtyN++;
dirty[i][0] = x1;
dirty[i][1] = y1;
dirty[i][2] = x2;
dirty[i][3] = y2;
}
dirtyS[i] = (dirty[i][2]-dirty[i][0]+1)*(dirty[i][3]-dirty[i][1]+1);
}
void gpuDrawS(void)
{
s32 temp;
s32 xmin, xmax;
s32 ymin, ymax;
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];
xmin = DrawingArea[0]; xmax = DrawingArea[2];
ymin = DrawingArea[1]; ymax = DrawingArea[3];
//TODO: Symbian minmax
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;
//AddDirtyArea(rx0,ry0,rx1,ry1);
if(isSkip) return;
u0 = PacketBuffer.U1[8];
v0 = PacketBuffer.U1[9];
r4 = s32(PacketBuffer.U1[0]);
g4 = s32(PacketBuffer.U1[1]);
b4 = s32(PacketBuffer.U1[2]);
temp = ymin - y0;
if (temp > 0) {
y0 = ymin;
v0 += temp;
}
if (y1 > ymax)
y1 = ymax;
temp = xmin - x0;
if (temp > 0) {
x0 = xmin;
u0 += temp;
}
if (x1 > xmax)
x1 = xmax;
x1 -= x0;
if (x1 < 0)
x1 = 0;
Pixel = &((u16*)GPU_FrameBuffer)[FRAME_OFFSET(x0, y0)];
v4 = v0;
for (;y0<y1;++y0)
{
u4 = u0;
PixelEnd = Pixel+x1;
if( 0 == (y0&linesInterlace) )
gpuSpriteSpanDriver();
Pixel += FRAME_WIDTH;
v4 = (++v4)&MaskV;
}
}
