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boinc/api/reduce.cpp

398 lines
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C++
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#include <windows.h>
#include <string.h>
#include <stdio.h>
#include <stdlib.h>
#include <GL/gl.h>
#include "gutil.h"
#include "reduce.h"
REDUCED_ARRAY::REDUCED_ARRAY() {
rdata = 0;
ftemp = 0;
itemp = 0;
reduce_method = REDUCE_METHOD_AVG;
}
REDUCED_ARRAY::~REDUCED_ARRAY() {
if (rdata) free(rdata);
if (ftemp) free(ftemp);
if (itemp) free(itemp);
}
// (mx, my) are maximum reduced dimensions
// (typically based on window size, e.g. half of window size in pixels)
//
void REDUCED_ARRAY::set_max_dims(int mx, int my) {
rdimx_max = mx;
rdimy_max = my;
rdimx = rdimx_max;
rdimy = rdimy_max;
}
// Prepare to receive a source array.
// (sx, sy) are dimensions of source array
//
void REDUCED_ARRAY::init(int sx, int sy) {
sdimx = sx;
sdimy = sy;
if (sdimx > rdimx_max) {
rdimx = rdimx_max;
} else {
rdimx = sdimx;
}
if (sdimy > rdimy_max) {
rdimy = rdimy_max;
} else {
rdimy = sdimy;
}
rdata = (float*)realloc(rdata, rdimx*rdimy*sizeof(float));
ftemp = (float*)realloc(ftemp, rdimx*sizeof(float));
itemp = (int*)realloc(itemp, rdimx*sizeof(int));
nvalid_rows = 0;
ndrawn_rows = 0;
scury = 0;
last_ry = 0;
last_ry_count = 0;
rdata_max = 0;
rdata_min = (float)1e20;
}
bool REDUCED_ARRAY::full() {
return nvalid_rows==rdimy;
}
void REDUCED_ARRAY::reset() {
nvalid_rows = 0;
ndrawn_rows = 0;
scury = 0;
last_ry = 0;
last_ry_count = 0;
}
void REDUCED_ARRAY::init_draw(float* p, float* s, double h0, double dh, float trans) {
memcpy(draw_pos, p, sizeof(draw_pos));
memcpy(draw_size, s, sizeof(draw_size));
draw_deltax = draw_size[0]/rdimx;
draw_deltaz = draw_size[2]/rdimy;
hue0 = h0;
dhue = dh;
alpha = trans;
}
// reduce a single row. This is called only if sdimx > rdimx;
//
void REDUCED_ARRAY::reduce_source_row(float* in, float* out) {
int i, ri;
memset(out, 0, rdimx*sizeof(float));
memset(itemp, 0, rdimx*sizeof(int));
for (i=0; i<sdimx; i++) {
ri = (i*rdimx)/sdimx;
switch (reduce_method) {
case REDUCE_METHOD_AVG:
out[ri] += in[i];
itemp[ri]++;
break;
case REDUCE_METHOD_SUM:
out[ri] += in[i];
break;
case REDUCE_METHOD_MIN:
out[ri] = min(out[ri],in[i]);
break;
case REDUCE_METHOD_MAX:
out[ri] = max(out[ri],in[i]);
break;
}
}
if (reduce_method==REDUCE_METHOD_AVG) {
for (i=0; i<rdimx; i++) {
if (itemp[i] > 1) out[i] /= itemp[i];
}
}
}
void REDUCED_ARRAY::update_max(int row) {
int i;
float* p = rrow(row);
for (i=0; i<rdimx; i++) {
if (p[i] > rdata_max) rdata_max = p[i];
if (p[i] < rdata_min) rdata_min = p[i];
}
}
// Add a row of data from the source array
//
void REDUCED_ARRAY::add_source_row(float* in) {
float* p;
int i, ry;
if (scury >= sdimy) {
printf("too many calls to add_source_row()!\n");
*(int*)0 = 0;
}
if (rdimy == sdimy) {
ry = scury;
if (rdimx == sdimx) {
memcpy(rrow(ry), in, rdimx*sizeof(float));
} else {
reduce_source_row(in, rrow(ry));
}
update_max(ry);
nvalid_rows++;
} else {
ry = (scury*rdimy)/sdimy;
if (scury == 0) memset(rrow(0), 0, rdimx*sizeof(float));
// if we've moved into a new row, finish up the previous one
//
if (ry > last_ry) {
p = rrow(last_ry);
if (last_ry_count > 1) {
for (i=0; i<rdimx; i++) {
p[i] /= last_ry_count;
}
}
update_max(last_ry);
nvalid_rows++;
last_ry = ry;
last_ry_count = 0;
memset(rrow(ry), 0, rdimx*sizeof(float));
}
last_ry_count++;
p = rrow(ry);
if (rdimx == sdimx) {
for (i=0; i<sdimx; i++) {
p[i] += in[i];
}
} else {
reduce_source_row(in, ftemp);
for (i=0; i<rdimx; i++) {
p[i] += ftemp[i];
}
}
// if this is last row, finish up
//
if (scury == sdimy-1) {
p = rrow(last_ry);
if (last_ry_count > 1) {
for (i=0; i<rdimx; i++) {
p[i] /= last_ry_count;
}
}
update_max(ry);
nvalid_rows++;
}
}
scury++;
}
void REDUCED_ARRAY::draw_row_quad(int row) {
float z0 = draw_pos[2] + (draw_size[2]*row)/rdimy;
float z1 = z0 + draw_deltaz;
float x0, x1, y00, y01, y10, y11;
float* row0 = rrow(row);
float* row1 = rrow(row+1);
int i;
glBegin(GL_QUADS); // TODO: use GL_QUADSTRIP
for (i=0; i<rdimx-1; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
x1 = x0 + draw_deltax;
float h00 = (row0[i]-rdata_min)/(rdata_max-rdata_min);
float h01 = (row0[i+1]-rdata_min)/(rdata_max-rdata_min);
float h10 = (row1[i]-rdata_min)/(rdata_max-rdata_min);
float h11 = (row1[i+1]-rdata_min)/(rdata_max-rdata_min);
y00 = draw_pos[1] + draw_size[1]*h00;
y01 = draw_pos[1] + draw_size[1]*h01;
y10 = draw_pos[1] + draw_size[1]*h10;
y11 = draw_pos[1] + draw_size[1]*h11;
float h = max(h00, max(h01, max(h10, h11)));
double hue = hue0 + (dhue*i)/rdimx;
if (hue > 1) hue -= 1;
double sat = 1.;
double lum = .5 + h/2;
COLOR color;
HLStoRGB(hue, lum, sat, color);
glColor4f(color.r, color.g, color.b, alpha);
glVertex3f(x0, y00, z0);
glVertex3f(x1, y01, z0);
glVertex3f(x1, y11, z1);
glVertex3f(x0, y10, z1);
}
glEnd();
#if 0
// draw a black line on front and right edge of each quad
//
glBegin(GL_LINES);
glColor4f(0., 0., 0., 1.0);
for (i=0; i<rdimx-1; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
x1 = x0 + draw_deltax;
float eps=.03f;
y00 = draw_pos[1] + draw_size[1]*(row0[i]-rdata_min)/rdata_max+eps;
y01 = draw_pos[1] + draw_size[1]*(row0[i+1]-rdata_min)/rdata_max+eps;
y10 = draw_pos[1] + draw_size[1]*(row1[i]-rdata_min)/rdata_max+eps;
y11 = draw_pos[1] + draw_size[1]*(row1[i+1]-rdata_min)/rdata_max+eps;
glVertex3f(x0, y00, z0);
glVertex3f(x1, y01, z0);
glVertex3f(x1, y01, z0);
glVertex3f(x1, y11, z1);
}
glEnd();
#endif
}
void REDUCED_ARRAY::draw_row_rect_x(int row) {
float z0 = draw_pos[2] + (draw_size[2]*row)/rdimy;
float x0, x1, y0, y1;
float* row0 = rrow(row);
int i;
glBegin(GL_QUADS);
for (i=0; i<rdimx; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
x1 = x0 + draw_deltax*.8f;
float h = (row0[i]-rdata_min)/(rdata_max-rdata_min);
y0 = draw_pos[1];
y1 = draw_pos[1] + draw_size[1]*h;
double hue = hue0 + (dhue*i)/rdimx;
if (hue > 1) hue -= 1;
double sat = 1.;
double lum = .5 + h/2;
COLOR color;
HLStoRGB(hue, lum, sat, color);
glColor4f(color.r, color.g, color.b, alpha);
glVertex3f(x0, y0, z0);
glVertex3f(x1, y0, z0);
glVertex3f(x1, y1, z0);
glVertex3f(x0, y1, z0);
}
glEnd();
// draw a black line on top of rectangle
//
glBegin(GL_LINES);
glColor4f(0., 0., 0., 1.0);
for (i=0; i<rdimx; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
x1 = x0 + draw_deltax*.8f;
float h = (row0[i]-rdata_min)/(rdata_max-rdata_min);
y1 = draw_pos[1] + draw_size[1]*h;
glVertex3f(x0, y1, z0);
glVertex3f(x1, y1, z0);
}
glEnd();
}
void REDUCED_ARRAY::draw_row_rect_y(int row) {
float z0 = draw_pos[2] + (draw_size[2]*row)/rdimy;
float z1 = z0 + draw_deltaz*.8f;
float x0, y0, y1;
float* row0 = rrow(row);
int i;
glBegin(GL_QUADS);
for (i=0; i<rdimx-1; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
float h = (row0[i]-rdata_min)/(rdata_max-rdata_min);
y0 = draw_pos[1];
y1 = draw_pos[1] + draw_size[1]*h;
double hue = hue0 + (dhue*i)/rdimx;
if (hue > 1) hue -= 1;
double sat = 1.;
double lum = .5 + h/2;
COLOR color;
HLStoRGB(hue, lum, sat, color);
glColor4f(color.r, color.g, color.b, alpha);
glVertex3f(x0, y0, z0);
glVertex3f(x0, y1, z0);
glVertex3f(x0, y1, z1);
glVertex3f(x0, y0, z1);
}
glEnd();
// draw a black line on top of rectangle
//
glBegin(GL_LINES);
glColor4f(0., 0., 0., 1.0);
for (i=0; i<rdimx-1; i++) {
x0 = draw_pos[0] + (draw_size[0]*i)/rdimx;
float h = (row0[i]-rdata_min)/(rdata_max-rdata_min);
y1 = draw_pos[1] + draw_size[1]*h;
glVertex3f(x0, y1, z0);
glVertex3f(x0, y1, z1);
}
glEnd();
}
void REDUCED_ARRAY::draw_row_line(int row) {
}
void REDUCED_ARRAY::draw(int r0, int rn) {
int i;
if (rdimx == sdimx) {
if (rdimy == sdimy) {
for (i=r0; i<rn; i++) {
draw_row_rect_x(i);
}
} else {
for (i=r0; i<rn; i++) {
draw_row_rect_x(i);
}
}
} else {
if (rdimy == sdimy) {
for (i=r0; i<rn; i++) {
draw_row_rect_x(i);
}
} else {
for (i=r0; i<rn; i++) {
draw_row_rect_x(i);
}
}
}
ndrawn_rows = rn;
glFlush();
}
void REDUCED_ARRAY::draw_all() {
draw(0, nvalid_rows);
}
void REDUCED_ARRAY::draw_new() {
draw(ndrawn_rows, nvalid_rows);
}
void REDUCED_ARRAY::draw_part(double frac) {
int nr = (int)(nvalid_rows*frac);
draw(0, nr);
}
void REDUCED_ARRAY::draw_axes() {
glBegin(GL_QUADS);
glColor3d(.2, .2, .2);
glVertex3f(draw_pos[0], draw_pos[1], draw_pos[2]);
glVertex3f(draw_pos[0]+draw_size[0], draw_pos[1], draw_pos[2]);
glVertex3f(draw_pos[0]+draw_size[0], draw_pos[1], draw_pos[2]+draw_size[2]);
glVertex3f(draw_pos[0], draw_pos[1], draw_pos[2]+draw_size[2]);
glEnd();
}
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