Box2i Pixel_Data::proxy_scale(const Box2i & in, Pixel_Data_Info::PROXY proxy)
{
const int scale = proxy_scale(proxy);
return Box2i(
Math::ceil(in.x / static_cast<double>(scale)),
Math::ceil(in.y / static_cast<double>(scale)),
Math::ceil(in.size.x / static_cast<double>(scale)),
Math::ceil(in.size.y / static_cast<double>(scale)));
}
Box2i Frame::frame_geom() const
{
const Box2i & geom = this->geom();
const int margin = frame_size();
return Box2i(
geom.x + margin,
geom.y + margin,
geom.w - margin * 2,
geom.h - margin * 2);
}
void Util::quad(const Pixel_Data_Info & in)
{
double u [] = { 0, 0 }, v [] = { 0, 0 };
u[! in.mirror.x] = in.size.x;
v[! in.mirror.y] = in.size.y;
const V2f uv [] =
{
V2f(u[0], v[0]),
V2f(u[0], v[1]),
V2f(u[1], v[1]),
V2f(u[1], v[0])
};
glBegin(GL_QUADS);
Gl_Util::draw_box(Box2i(in.size), uv);
glEnd();
}
Box2i
dataWindowForTile (const TileDescription &tileDesc,
int minX, int maxX,
int minY, int maxY,
int dx, int dy,
int lx, int ly)
{
V2i tileMin = V2i (minX + dx * tileDesc.xSize,
minY + dy * tileDesc.ySize);
V2i tileMax = tileMin + V2i (tileDesc.xSize - 1, tileDesc.ySize - 1);
V2i levelMax = dataWindowForLevel
(tileDesc, minX, maxX, minY, maxY, lx, ly).max;
tileMax = V2i (std::min (tileMax[0], levelMax[0]),
std::min (tileMax[1], levelMax[1]));
return Box2i (tileMin, tileMax);
}
Box2i scale( const Box2i& b, float sx, float sy)
{
return Box2i( V2i( Math<float>::floor( b.min.x * sx), Math<float>::floor( b.min.y * sy)),
V2i( Math<float>::ceil( b.max.x * sx), Math<float>::ceil( b.max.y * sy)));
}
std::vector< SmartPointer<Batch> > Unwrapper::Unwrap(Mat4f _T1,SmartPointer<Batch> source_batch)
{
std::vector< SmartPointer<Batch> > ret;
//return the batch I cannot handle untouched
if (source_batch->primitive!=Batch::TRIANGLES || !source_batch->vertices || !source_batch->vertices->size())
{
ret.push_back(source_batch);
return ret;
}
//second transformation matrix
Mat4f Matrix= _T1 * source_batch->matrix;
//create a perfect copy and leave the source batch untouched
SmartPointer<Batch> batch(new Batch(*source_batch));
//overwrite texture1 coordinates
int ntriangles=batch->vertices->size()/9;
batch->texture1coords.reset(new Array(ntriangles*6));
batch->texture1.reset();
float* vertices = (float*)batch -> vertices -> c_ptr();
float* lightcoord = (float*)batch -> texture1coords -> c_ptr();
//*****************************************************************************
// step 1: triangleProject and rotate GL_TRIANGLES so the longest edge is horizontal and the top vertex is above the horizontal line
//******************************************************************************
//LOG("projecting %d triangles\n",ntriangles);
for (int T=0;T<ntriangles;T++,vertices+=9)
{
//apply transformation matrix
Vec3f v0 = Matrix * Vec3f(vertices+0);
Vec3f v1 = Matrix * Vec3f(vertices+3);
Vec3f v2 = Matrix * Vec3f(vertices+6);
Triangle2i triangle=triangleProject(texturedim,factor,v0,v1,v2); //NOTE: for now on I have integer coordinates stored!
(*lightcoord++)=triangle.p0.x;
(*lightcoord++)=triangle.p0.y;
(*lightcoord++)=triangle.p1.x;
(*lightcoord++)=triangle.p1.y;
(*lightcoord++)=triangle.p2.x;
(*lightcoord++)=triangle.p2.y;
}
//******************************************************************************
// step 2: sort the triangle by decreasing height (this is for good placement of GL_TRIANGLES)
//******************************************************************************
std::vector<int> order(ntriangles);
for (int T=0;T<ntriangles;T++) order[T]=T;
std::sort(order.begin(),order.end(),TriangleSort(batch->texture1coords));
//******************************************************************************
// step3: pack continous segment
//******************************************************************************
std::vector<int> cur_indices;
std::vector<int> prv_indices;
lightcoord = (float*)batch -> texture1coords -> c_ptr();
for (int Torder=0;Torder<ntriangles;Torder++)
{
int T=order[Torder];
// get the integer texture coordinates as Vec2i
Triangle2i triangle
(
Vec2i(lightcoord[T*6+0],lightcoord[T*6+1]),
Vec2i(lightcoord[T*6+2],lightcoord[T*6+3]),
Vec2i(lightcoord[T*6+4],lightcoord[T*6+5])
);
//not valid!= since the projection failed
if (!triangle.p0.x && !triangle.p0.y && !triangle.p1.x && !triangle.p1.y && !triangle.p2.x && !triangle.p2.y)
continue;
//give a random color
Color4f color=Color4f::randomRGB();
while (true)
{
//try with the current texture
if (cur.rgb && triangleFits(triangle,cur.rgb,cur.alpha,cur.queue,color))
{
lightcoord[T*6+0]=(float)triangle.p0.x;lightcoord[T*6+1]=(float)triangle.p0.y;
lightcoord[T*6+2]=(float)triangle.p1.x;lightcoord[T*6+3]=(float)triangle.p1.y;
lightcoord[T*6+4]=(float)triangle.p2.x;lightcoord[T*6+5]=(float)triangle.p2.y;
cur_indices.push_back(T*3+0); //here I put indices of vertices (each triangle has 3 vertices)
cur_indices.push_back(T*3+1);
cur_indices.push_back(T*3+2);
break;
}
//try to fitTriangle2i with the previous texture (seems to be better to do here!)
if (prv.rgb && triangleFits(triangle,prv.rgb,prv.alpha,prv.queue,color))
{
lightcoord[T*6+0]=(float)triangle.p0.x;lightcoord[T*6+1]=(float)triangle.p0.y;
lightcoord[T*6+2]=(float)triangle.p1.x;lightcoord[T*6+3]=(float)triangle.p1.y;
lightcoord[T*6+4]=(float)triangle.p2.x;lightcoord[T*6+5]=(float)triangle.p2.y;
prv_indices.push_back(T*3+0);
prv_indices.push_back(T*3+1);
prv_indices.push_back(T*3+2);
break;
}
//cannot fitTriangle2i in prev or current. New texture needed, drop previous one
if (prv_indices.size())
{
ret.push_back(batch->getTriangles(prv_indices));
ret[ret.size()-1]->texture1=prv.rgb;
}
//the previous becames the current one
prv=cur;
prv_indices=cur_indices;
//allocate new texture
cur.rgb .reset(new Texture(texturedim,texturedim,24,0));
cur.alpha.reset(new Texture(texturedim,texturedim, 8,0));
cur.rgb->filename="";
if (texture_template.length())
cur.rgb->filename=Utils::Format(texture_template.c_str(),(int)new_light_textures.size()).c_str();
new_light_textures.push_back(cur.rgb);
//LOG("New texture %d\n",(int)new_light_textures.size());
cur.queue.clear();
cur.queue.insert(Box2i(Vec2i(1,1),Vec2i(texturedim-2,texturedim-2),0)); //this is the working area
cur_indices.clear();
} //while true
} //for each triangle
//******************************************************************************
// step4: flush residual
//******************************************************************************
if (prv_indices.size())
{
ret.push_back(batch->getTriangles(prv_indices));
ret[ret.size()-1]->texture1=prv.rgb;
}
if (cur_indices .size())
{
ret.push_back(batch->getTriangles(cur_indices));
ret[ret.size()-1]->texture1=cur.rgb;
}
//******************************************************************************
//convert back to integer coordinates
//******************************************************************************
for (std::vector<SmartPointer<Batch> >::iterator ct=ret.begin();ct!=ret.end();ct++)
{
XgeDebugAssert((*ct)->primitive==Batch::TRIANGLES);
float* t= (float*)(*ct)->texture1coords->c_ptr();
for (int i=0;i<(int)(*ct)->texture1coords->size();i++)
{
int ival=(int)(*t);
float fval=(float)(0.5f/texturedim+ival/(float)texturedim); //robust conversion from int to float
*t++=fval;
}
}
ntriangles_done+=ntriangles;
//#ifdef _DEBUG
//LOG("RibBake:: GL_TRIANGLES done %2d (ntextures %d)\n",ntriangles_done,(int)this->new_light_textures.size());
//#endif
return ret;
}
