FBCALL void fb_GfxDraw(void *target, FBSTRING *command)
{
FB_GFXCTX *context;
float x, y, dx, dy, ax, ay, x2, y2;
int angle = 0, diagonal = FALSE;
char *c;
intptr_t value1, value2;
int draw = TRUE, move = TRUE, length = 0, flags, rel;
FB_GRAPHICS_LOCK( );
if ((!__fb_gfx) || (!command) || (!command->data)) {
if (command)
fb_hStrDelTemp(command);
FB_GRAPHICS_UNLOCK( );
return;
}
context = fb_hGetContext( );
fb_hPrepareTarget(context, target);
fb_hSetPixelTransfer(context, MASK_A_32);
x = context->last_x;
y = context->last_y;
DRIVER_LOCK();
flags = context->flags;
context->flags |= CTX_VIEW_SCREEN;
for (c = command->data; *c;) {
switch (toupper(*c)) {
case 'B':
c++;
draw = FALSE;
break;
case 'N':
c++;
move = FALSE;
break;
case 'C':
c++;
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
context->fg_color = fb_hFixColor(context->target_bpp, value1);
break;
case 'S':
c++;
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
base_scale = (float)value1 / 4.0;
break;
case 'A':
c++;
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
base_angle = (value1 & 0x3) * 90;
break;
case 'T':
c++;
if (toupper(*c) != 'A')
goto error;
c++;
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
base_angle = mod360( value1 );
break;
case 'X':
c++;
/* Here we could be more severe with checking, but it's unlikely our substring
* resides at location FB_NAN (0x80000000) */
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
/* Store our current x/y for the recursive fb_GfxDraw() call */
context->last_x = x;
context->last_y = y;
DRIVER_UNLOCK();
fb_GfxDraw(target, (FBSTRING *)value1);
DRIVER_LOCK();
/* And update to x/y produced by the recursive fb_GfxDraw() call */
x = context->last_x;
y = context->last_y;
break;
case 'P':
c++;
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
value2 = value1;
if (*c == ',') {
c++;
if ((value2 = parse_number(&c)) == FB_NAN)
goto error;
}
DRIVER_UNLOCK();
fb_GfxPaint(target, x, y, value1 & __fb_gfx->color_mask, value2 & __fb_gfx->color_mask, NULL, PAINT_TYPE_FILL, COORD_TYPE_A);
DRIVER_LOCK();
break;
case 'M':
c++;
while ((*c == ' ') || (*c == '\t'))
c++;
rel = ((*c == '+') || (*c == '-'));
if ((value1 = parse_number(&c)) == FB_NAN)
goto error;
if (*c++ != ',')
goto error;
if ((value2 = parse_number(&c)) == FB_NAN)
goto error;
x2 = (float)value1;
y2 = (float)value2;
if (rel) {
ax = dcos(base_angle);
ay = -dsin(base_angle);
dx = x2;
dy = y2;
x2 = (((dx * ax) - (dy * ay)) * base_scale) + x;
y2 = (((dy * ax) + (dx * ay)) * base_scale) + y;
}
if (draw) {
DRIVER_UNLOCK();
fb_GfxLine(target, (int)x, (int)y, (int)x2, (int)y2, 0, LINE_TYPE_LINE, 0xFFFF, COORD_TYPE_AA | DEFAULT_COLOR_1);
DRIVER_LOCK();
}
if (move) {
x = x2;
y = y2;
}
move = draw = TRUE;
break;
case 'F': case 'D': angle += 90;
case 'G': case 'L': angle += 90;
case 'H': case 'U': angle += 90;
case 'E': case 'R':
diagonal = ((toupper(*c) >= 'E') && (toupper(*c) <= 'H'));
c++;
if ((value1 = parse_number(&c)) != FB_NAN)
length = value1;
else
length = 1;
angle = mod360( angle + base_angle );
dx = (float)length * base_scale * dcos( angle );
dy = (float)length * base_scale * -dsin( angle );
if (diagonal) {
x2 = x + (dx + dy);
y2 = y + (dy - dx);
}
else {
x2 = x + dx;
y2 = y + dy;
}
if (draw) {
fb_GfxDrawLine( context, CINT(x), CINT(y), CINT(x2), CINT(y2), context->fg_color, 0xffff );
}
if (move) {
x = x2;
y = y2;
}
angle = 0;
move = draw = TRUE;
break;
default:
c++;
break;
}
}
context->last_x = x;
context->last_y = y;
error:
context->flags = flags;
DRIVER_UNLOCK();
/* del if temp */
fb_hStrDelTemp( command );
FB_GRAPHICS_UNLOCK( );
}
CookedAngle::CookedAngle(const RawAngle raw)
{
val = mod360((inverted ? -1.0 : 1.0) * (linearize(raw.val) - offset));
}
