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data_redir_m.cpp
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data_redir_m.cpp
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#include "../host/typedefs.h"
int check_clockwise( Triangle_2D triangle_2d )
{
int cw;
cw = (triangle_2d.x2 - triangle_2d.x0) * (triangle_2d.y1 - triangle_2d.y0)
- (triangle_2d.y2 - triangle_2d.y0) * (triangle_2d.x1 - triangle_2d.x0);
return cw;
}
// swap (x0, y0) (x1, y1) of a Triangle_2D
void clockwise_vertices( Triangle_2D *triangle_2d )
{
bit8 tmp_x, tmp_y;
tmp_x = triangle_2d->x0;
tmp_y = triangle_2d->y0;
triangle_2d->x0 = triangle_2d->x1;
triangle_2d->y0 = triangle_2d->y1;
triangle_2d->x1 = tmp_x;
triangle_2d->y1 = tmp_y;
}
bit8 find_min( bit8 in0, bit8 in1, bit8 in2 )
{
if (in0 < in1)
{
if (in0 < in2)
return in0;
else
return in2;
}
else
{
if (in1 < in2)
return in1;
else
return in2;
}
}
// find the max from 3 integers
bit8 find_max( bit8 in0, bit8 in1, bit8 in2 )
{
if (in0 > in1)
{
if (in0 > in2)
return in0;
else
return in2;
}
else
{
if (in1 > in2)
return in1;
else
return in2;
}
}
// project a 3D triangle to a 2D triangle
void projection_odd_m (
bit32 input_lo,
bit32 input_mi,
bit32 input_hi,
Triangle_2D *triangle_2d
)
{
#pragma HLS INLINE off
Triangle_3D triangle_3d;
// Setting camera to (0,0,-1), the canvas at z=0 plane
// The 3D model lies in z>0 space
// The coordinate on canvas is proportional to the corresponding coordinate
// on space
bit2 angle = 0;
triangle_3d.x0(7, 0) = input_lo( 7, 0);
triangle_3d.y0(7, 0) = input_lo(15, 8);
triangle_3d.z0(7, 0) = input_lo(23, 16);
triangle_3d.x1(7, 0) = input_lo(31, 24);
triangle_3d.y1(7, 0) = input_mi( 7, 0);
triangle_3d.z1(7, 0) = input_mi(15, 8);
triangle_3d.x2(7, 0) = input_mi(23, 16);
triangle_3d.y2(7, 0) = input_mi(31, 24);
triangle_3d.z2(7, 0) = input_hi( 7, 0);
if(angle == 0)
{
triangle_2d->x0 = triangle_3d.x0;
triangle_2d->y0 = triangle_3d.y0;
triangle_2d->x1 = triangle_3d.x1;
triangle_2d->y1 = triangle_3d.y1;
triangle_2d->x2 = triangle_3d.x2;
triangle_2d->y2 = triangle_3d.y2;
triangle_2d->z = triangle_3d.z0 / 3 + triangle_3d.z1 / 3 + triangle_3d.z2 / 3;
}
else if(angle == 1)
{
triangle_2d->x0 = triangle_3d.x0;
triangle_2d->y0 = triangle_3d.z0;
triangle_2d->x1 = triangle_3d.x1;
triangle_2d->y1 = triangle_3d.z1;
triangle_2d->x2 = triangle_3d.x2;
triangle_2d->y2 = triangle_3d.z2;
triangle_2d->z = triangle_3d.y0 / 3 + triangle_3d.y1 / 3 + triangle_3d.y2 / 3;
}
else if(angle == 2)
{
triangle_2d->x0 = triangle_3d.z0;
triangle_2d->y0 = triangle_3d.y0;
triangle_2d->x1 = triangle_3d.z1;
triangle_2d->y1 = triangle_3d.y1;
triangle_2d->x2 = triangle_3d.z2;
triangle_2d->y2 = triangle_3d.y2;
triangle_2d->z = triangle_3d.x0 / 3 + triangle_3d.x1 / 3 + triangle_3d.x2 / 3;
}
}
void projection_even_m (
bit32 input_lo,
bit32 input_mi,
bit32 input_hi,
Triangle_2D *triangle_2d
)
{
#pragma HLS INLINE off
Triangle_3D triangle_3d;
// Setting camera to (0,0,-1), the canvas at z=0 plane
// The 3D model lies in z>0 space
// The coordinate on canvas is proportional to the corresponding coordinate
// on space
bit2 angle = 0;
triangle_3d.x0(7, 0) = input_lo( 7, 0);
triangle_3d.y0(7, 0) = input_lo(15, 8);
triangle_3d.z0(7, 0) = input_lo(23, 16);
triangle_3d.x1(7, 0) = input_lo(31, 24);
triangle_3d.y1(7, 0) = input_mi( 7, 0);
triangle_3d.z1(7, 0) = input_mi(15, 8);
triangle_3d.x2(7, 0) = input_mi(23, 16);
triangle_3d.y2(7, 0) = input_mi(31, 24);
triangle_3d.z2(7, 0) = input_hi( 7, 0);
if(angle == 0)
{
triangle_2d->x0 = triangle_3d.x0;
triangle_2d->y0 = triangle_3d.y0;
triangle_2d->x1 = triangle_3d.x1;
triangle_2d->y1 = triangle_3d.y1;
triangle_2d->x2 = triangle_3d.x2;
triangle_2d->y2 = triangle_3d.y2;
triangle_2d->z = triangle_3d.z0 / 3 + triangle_3d.z1 / 3 + triangle_3d.z2 / 3;
}
else if(angle == 1)
{
triangle_2d->x0 = triangle_3d.x0;
triangle_2d->y0 = triangle_3d.z0;
triangle_2d->x1 = triangle_3d.x1;
triangle_2d->y1 = triangle_3d.z1;
triangle_2d->x2 = triangle_3d.x2;
triangle_2d->y2 = triangle_3d.z2;
triangle_2d->z = triangle_3d.y0 / 3 + triangle_3d.y1 / 3 + triangle_3d.y2 / 3;
}
else if(angle == 2)
{
triangle_2d->x0 = triangle_3d.z0;
triangle_2d->y0 = triangle_3d.y0;
triangle_2d->x1 = triangle_3d.z1;
triangle_2d->y1 = triangle_3d.y1;
triangle_2d->x2 = triangle_3d.z2;
triangle_2d->y2 = triangle_3d.y2;
triangle_2d->z = triangle_3d.x0 / 3 + triangle_3d.x1 / 3 + triangle_3d.x2 / 3;
}
}
// calculate bounding box for a 2D triangle
void rasterization1_odd_m (
Triangle_2D triangle_2d,
hls::stream<ap_uint<32> > & Output_1)
{
Triangle_2D triangle_2d_same;
static bit8 max_min[5]={0, 0, 0, 0, 0};
static bit16 max_index[1]={0};
#pragma HLS INLINE off
// clockwise the vertices of input 2d triangle
if ( check_clockwise( triangle_2d ) == 0 ){
bit32 tmp;
tmp(7,0) = 1;
tmp(15, 8) = triangle_2d_same.x0;
tmp(23,16) = triangle_2d_same.y0;
tmp(31,24) = triangle_2d_same.x1;
Output_1.write(tmp);
tmp(7,0) = triangle_2d_same.y1;
tmp(15, 8) = triangle_2d_same.x2;
tmp(23,16) = triangle_2d_same.y2;
tmp(31,24) = triangle_2d_same.z;
Output_1.write(tmp);
tmp(15,0) = max_index[0];
tmp(23,16) = max_min[0];
tmp(31,24) = max_min[1];
Output_1.write(tmp);
tmp(7,0) = max_min[2];
tmp(15, 8) = max_min[3];
tmp(23,16) = max_min[4];
tmp(31,24) = 0;
Output_1.write(tmp);
#ifdef PROFILE
data_redir_m_out_1+=4;
#endif
return;
}
if ( check_clockwise( triangle_2d ) < 0 )
clockwise_vertices( &triangle_2d );
// copy the same 2D triangle
triangle_2d_same.x0 = triangle_2d.x0;
triangle_2d_same.y0 = triangle_2d.y0;
triangle_2d_same.x1 = triangle_2d.x1;
triangle_2d_same.y1 = triangle_2d.y1;
triangle_2d_same.x2 = triangle_2d.x2;
triangle_2d_same.y2 = triangle_2d.y2;
triangle_2d_same.z = triangle_2d.z ;
// find the rectangle bounds of 2D triangles
max_min[0] = find_min( triangle_2d.x0, triangle_2d.x1, triangle_2d.x2 );
max_min[1] = find_max( triangle_2d.x0, triangle_2d.x1, triangle_2d.x2 );
max_min[2] = find_min( triangle_2d.y0, triangle_2d.y1, triangle_2d.y2 );
max_min[3] = find_max( triangle_2d.y0, triangle_2d.y1, triangle_2d.y2 );
max_min[4] = max_min[1] - max_min[0];
// calculate index for searching pixels
max_index[0] = (max_min[1] - max_min[0]) * (max_min[3] - max_min[2]);
bit32 tmp;
tmp(7,0) = 0;
tmp(15,8) = triangle_2d_same.x0;
tmp(23,16) = triangle_2d_same.y0;
tmp(31,24) = triangle_2d_same.x1;
Output_1.write(tmp);
tmp(7,0) = triangle_2d_same.y1;
tmp(15,8) = triangle_2d_same.x2;
tmp(23,16) = triangle_2d_same.y2;
tmp(31,24) = triangle_2d_same.z;
Output_1.write(tmp);
tmp(15,0) = max_index[0];
tmp(23,16) = max_min[0];
tmp(31,24) = max_min[1];
Output_1.write(tmp);
tmp(7,0) = max_min[2];
tmp(15,8) = max_min[3];
tmp(23, 16) = max_min[4];
tmp(31, 24) = 0;
Output_1.write(tmp);
#ifdef PROFILE
data_redir_m_out_1+=4;
#endif
return;
}
// calculate bounding box for a 2D triangle
void rasterization1_even_m (
Triangle_2D triangle_2d,
hls::stream<ap_uint<32> > & Output_1)
{
Triangle_2D triangle_2d_same;
static bit8 max_min[5]={0, 0, 0, 0, 0};
static bit16 max_index[1]={0};
#pragma HLS INLINE off
// clockwise the vertices of input 2d triangle
if ( check_clockwise( triangle_2d ) == 0 ){
bit32 tmp;
tmp(7,0) = 1;
tmp(15, 8) = triangle_2d_same.x0;
tmp(23,16) = triangle_2d_same.y0;
tmp(31,24) = triangle_2d_same.x1;
Output_1.write(tmp);
tmp(7,0) = triangle_2d_same.y1;
tmp(15, 8) = triangle_2d_same.x2;
tmp(23,16) = triangle_2d_same.y2;
tmp(31,24) = triangle_2d_same.z;
Output_1.write(tmp);
tmp(15,0) = max_index[0];
tmp(23,16) = max_min[0];
tmp(31,24) = max_min[1];
Output_1.write(tmp);
tmp(7,0) = max_min[2];
tmp(15, 8) = max_min[3];
tmp(23,16) = max_min[4];
tmp(31,24) = 0;
Output_1.write(tmp);
#ifdef PROFILE
data_redir_m_out_2+=4;
#endif
return;
}
if ( check_clockwise( triangle_2d ) < 0 )
clockwise_vertices( &triangle_2d );
// copy the same 2D triangle
triangle_2d_same.x0 = triangle_2d.x0;
triangle_2d_same.y0 = triangle_2d.y0;
triangle_2d_same.x1 = triangle_2d.x1;
triangle_2d_same.y1 = triangle_2d.y1;
triangle_2d_same.x2 = triangle_2d.x2;
triangle_2d_same.y2 = triangle_2d.y2;
triangle_2d_same.z = triangle_2d.z ;
// find the rectangle bounds of 2D triangles
max_min[0] = find_min( triangle_2d.x0, triangle_2d.x1, triangle_2d.x2 );
max_min[1] = find_max( triangle_2d.x0, triangle_2d.x1, triangle_2d.x2 );
max_min[2] = find_min( triangle_2d.y0, triangle_2d.y1, triangle_2d.y2 );
max_min[3] = find_max( triangle_2d.y0, triangle_2d.y1, triangle_2d.y2 );
max_min[4] = max_min[1] - max_min[0];
// calculate index for searching pixels
max_index[0] = (max_min[1] - max_min[0]) * (max_min[3] - max_min[2]);
bit32 tmp;
tmp(7,0) = 0;
tmp(15, 8) = triangle_2d_same.x0;
tmp(23,16) = triangle_2d_same.y0;
tmp(31,24) = triangle_2d_same.x1;
Output_1.write(tmp);
tmp(7,0) = triangle_2d_same.y1;
tmp(15, 8) = triangle_2d_same.x2;
tmp(23,16) = triangle_2d_same.y2;
tmp(31,24) = triangle_2d_same.z;
Output_1.write(tmp);
tmp(15,0) = max_index[0];
tmp(23,16) = max_min[0];
tmp(31,24) = max_min[1];
Output_1.write(tmp);
tmp(7,0) = max_min[2];
tmp(15, 8) = max_min[3];
tmp(23,16) = max_min[4];
tmp(31,24) = 0;
Output_1.write(tmp);
#ifdef PROFILE
data_redir_m_out_2+=4;
#endif
return;
}
void data_redir_m (
hls::stream<ap_uint<128> > & Input_1,
hls::stream<ap_uint<32> > & Output_1,
hls::stream<ap_uint<32> > & Output_2
)
{
#pragma HLS INTERFACE axis register port=Input_1
#pragma HLS INTERFACE axis register port=Output_1
#pragma HLS INTERFACE axis register port=Output_2
bit32 input_lo;
bit32 input_mi;
bit32 input_hi;
bit128 input_tmp;
hls::stream<ap_uint<32> > Output_1_1;
hls::stream<ap_uint<32> > Output_2_2;
Triangle_2D triangle_2ds_1;
Triangle_2D triangle_2ds_2;
input_tmp = Input_1.read();
//for(int ii=0; ii<4; ii++){
// printf("%08x", (unsigned int) input_tmp((3-ii)*32+31, (3-ii)*32));
//}
//printf("\n");
#ifdef PROFILE
data_redir_m_in_1++;
#endif
input_lo(31,0) = input_tmp(31, 0);
input_mi(31,0) = input_tmp(63, 32);
input_hi(31,0) = input_tmp(95, 64);
projection_odd_m (
input_lo,
input_mi,
input_hi,
&triangle_2ds_1);
rasterization1_odd_m (
triangle_2ds_1,
Output_1);
input_tmp = Input_1.read();
//for(int ii=0; ii<4; ii++){
//printf("%08x", (unsigned int) input_tmp((3-ii)*32+31, (3-ii)*32));
//}
//printf("\n");
#ifdef PROFILE
data_redir_m_in_1++;
#endif
input_lo(31,0) = input_tmp(31, 0);
input_mi(31,0) = input_tmp(63, 32);
input_hi(31,0) = input_tmp(95, 64);
projection_even_m (
input_lo,
input_mi,
input_hi,
&triangle_2ds_2);
rasterization1_even_m (
triangle_2ds_2,
Output_2);
}