// Fill the buffer with a constant color
void LLImageRaw::fill( const LLColor4U& color )
{
S32 pixels = getWidth() * getHeight();
if( 4 == getComponents() )
{
U32* data = (U32*) getData();
U32 mColor = color.asRGBA();
for( S32 i = 0; i < pixels; i++ )
data[i] = mColor;
}
else
if( 3 == getComponents() )
{
U8* data = getData();
for( S32 i = 0; i < pixels; i++ )
{
data[0] = color.mV[0];
data[1] = color.mV[1];
data[2] = color.mV[2];
data += 3;
}
}
}
void LLNetMap::renderPoint(const LLVector3 &pos_local, const LLColor4U &color,
S32 diameter, S32 relative_height)
{
if (diameter <= 0)
{
return;
}
const S32 image_width = (S32)mObjectImagep->getWidth();
const S32 image_height = (S32)mObjectImagep->getHeight();
S32 x_offset = llround(pos_local.mV[VX] * mObjectMapTPM + image_width / 2);
S32 y_offset = llround(pos_local.mV[VY] * mObjectMapTPM + image_height / 2);
if ((x_offset < 0) || (x_offset >= image_width))
{
return;
}
if ((y_offset < 0) || (y_offset >= image_height))
{
return;
}
U8 *datap = mObjectRawImagep->getData();
S32 neg_radius = diameter / 2;
S32 pos_radius = diameter - neg_radius;
S32 x, y;
if (relative_height > 0)
{
// ...point above agent
S32 px, py;
// vertical line
px = x_offset;
for (y = -neg_radius; y < pos_radius; y++)
{
py = y_offset + y;
if ((py < 0) || (py >= image_height))
{
continue;
}
S32 offset = px + py * image_width;
((U32*)datap)[offset] = color.asRGBA();
}
// top line
py = y_offset + pos_radius - 1;
for (x = -neg_radius; x < pos_radius; x++)
{
px = x_offset + x;
if ((px < 0) || (px >= image_width))
{
continue;
}
S32 offset = px + py * image_width;
((U32*)datap)[offset] = color.asRGBA();
}
}
else
{
// ...point level with agent
for (x = -neg_radius; x < pos_radius; x++)
{
S32 p_x = x_offset + x;
if ((p_x < 0) || (p_x >= image_width))
{
continue;
}
for (y = -neg_radius; y < pos_radius; y++)
{
S32 p_y = y_offset + y;
if ((p_y < 0) || (p_y >= image_height))
{
continue;
}
S32 offset = p_x + p_y * image_width;
((U32*)datap)[offset] = color.asRGBA();
}
}
}
}
