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caprenderer_ancientgl.cpp
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caprenderer_ancientgl.cpp
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/*
*
* Copyright (c) 2018 - 2019 Mateusz 'mteg' Golicz
*
* Distributed under Apache License version 2.0
*
*/
#define _USE_MATH_DEFINES
#include <cmath>
#include <cstdio>
#include <string.h>
#include "capaffine.h"
#include "caprenderer_ancientgl.h"
#include "capdebug.h"
#include "lodepng.h"
capRenderer_AncientGL::capRenderer_AncientGL()
{
this->reshape(640, 480);
}
void capRenderer_AncientGL::startDisplay()
{
#ifdef WINDOWS
GLenum err = glewInit();
capDebug::report(2, "GLEW initialized, error: %d", err);
if (err != GLEW_OK) {
const GLubyte* msg = glewGetErrorString(err);
throw std::exception(reinterpret_cast<const char*>(msg));
}
#endif
glGenTextures(1, &this->camTexture);
capDebug::report(2, "Camera texture ID: %d", this->camTexture);
}
void capRenderer_AncientGL::drawCircle(GLfloat x, GLfloat y, GLfloat radius, GLfloat ar, int filled)
{
int i;
int lineAmount = 20; //# of triangles used to draw circle
GLfloat twicePi = 2.0f * CAP_PI;
if(filled)
{
glBegin(GL_TRIANGLE_FAN);
glVertex3f(x, y, 0);
}
else
glBegin(GL_LINE_LOOP);
for(i = 0; i <= lineAmount;i++)
{
glVertex3f(
(x + (ar * radius * cosf(((float) i) * twicePi / ((float) lineAmount)))),
(y + (radius* sinf(((float) i) * twicePi / ((float) lineAmount)))),
0.0
);
}
glEnd();
}
void capRenderer_AncientGL::uninitRenderData(struct ancientGL_renderData **rd)
{
if(!*rd) return;
auto md = *rd;
if(md->flags & AGLF_LISTED)
glDeleteLists(md->displayList, 1);
delete *rd;
*rd = NULL;
}
void capRenderer_AncientGL::uninitModel(capModel *m)
{
if(!m->rendererData) return;
this->uninitRenderData((struct ancientGL_renderData**) &m->rendererData);
}
void capRenderer_AncientGL::reselectModel(capModel *model)
{
this->reinitModel(model);
}
void capRenderer_AncientGL::replaneModel(capModel *model)
{
this->reinitModel(model);
}
void capRenderer_AncientGL::reinitModel(capModel *m)
{
unsigned int decThreshold, decMask, doDec = 1;
struct ancientGL_renderData *md;
if(m->rendererData)
md = (struct ancientGL_renderData*) m->rendererData;
else {
m->rendererData = md = new ancientGL_renderData();
md->flags = 0;
md->displayList = glGenLists(1);
}
if(!(m->flags & CAMF_LOADED)) return;
glNewList(md->displayList, GL_COMPILE);
md->flags |= AGLF_LISTED;
glColor3f (1.0, 0.0, 0.0); /* Default color: red */
/* Precompute decimation stuff */
srand(m->decSeed);
decMask = (1 << CA_DEC_MAX) - 1; /* 65535 */
decThreshold = 1 << (CA_DEC_MAX - m->decRate);
if(!m->decRate) doDec = 0;
capDebug::report(3, "Decimation: decThreshold = %d, decMask = %d, decRate = %d", decThreshold, decMask, m->decRate);
/* Start drawing, depending on modes */
if(m->flags & CAMF_POINTS)
{
unsigned int i;
glBegin(GL_POINTS);
glPointSize(0.2);
for(i = 0; i<m->nv; i++)
{
if(doDec)
{
unsigned int decVal = rand() & decMask;
if(decVal > decThreshold) continue;
}
if(CA_HASFLAG_A(m->vf, i, CAV_DELETED)) continue;
if(CA_HASFLAG_A(m->vf, i, CAV_MARKED))
glColor3ub(255, 255, 0);
else
glColor3ub(m->v[i].r, m->v[i].g, m->v[i].b);
glVertex3f(m->v[i].x, m->v[i].y, m->v[i].z);
}
}
else if(m->flags & (CAMF_FACES | CAMF_EDGES)) {
unsigned int i;
if (m->flags & CAMF_EDGES)
glLineWidth(2.0);
glBegin(GL_TRIANGLES);
for (i = 0; i < m->nt; i++) {
unsigned int a = m->t[i].a, b = m->t[i].b, c = m->t[i].c;
if (doDec) {
unsigned int decVal = rand() & decMask;
if (decVal > decThreshold) continue;
}
if (CA_HASFLAG_A(m->vf, a, CAV_DELETED)) continue;
if (CA_HASFLAG_A(m->vf, b, CAV_DELETED)) continue;
if (CA_HASFLAG_A(m->vf, c, CAV_DELETED)) continue;
glNormal3f(m->v[a].nx, m->v[a].ny, m->v[a].nz);
if (CA_HASFLAG_A(m->vf, a, CAV_MARKED))
glColor3ub(255, 255, 0);
else
glColor3ub(m->v[a].r, m->v[a].g, m->v[a].b);
glVertex3f(m->v[a].x, m->v[a].y, m->v[a].z);
glNormal3f(m->v[b].nx, m->v[b].ny, m->v[b].nz);
if (CA_HASFLAG_A(m->vf, b, CAV_MARKED))
glColor3ub(255, 255, 0);
else
glColor3ub(m->v[b].r, m->v[b].g, m->v[b].b);
glVertex3f(m->v[b].x, m->v[b].y, m->v[b].z);
glNormal3f(m->v[c].nx, m->v[c].ny, m->v[c].nz);
if (CA_HASFLAG_A(m->vf, c, CAV_MARKED))
glColor3ub(255, 255, 0);
else
glColor3ub(m->v[c].r, m->v[c].g, m->v[c].b);
glVertex3f(m->v[c].x, m->v[c].y, m->v[c].z);
}
glEnd();
glLineWidth(1.0);
}
if(m->hasPlane)
{
int n = 0;
glPointSize(2.0);
glBegin(GL_POINTS);
glColor3ub(0, 0, 255);
for(n = 0; n<1000; n++)
{
float u = ((float)rand()/(float)(RAND_MAX)) * 2 - 1.0;
float v = ((float)rand()/(float)(RAND_MAX)) * 2 - 1.0;
float x = m->fitPlane.cx, y = m->fitPlane.cy, z = m->fitPlane.cz;
u *= m->fitPlane.radius * 3;
v *= m->fitPlane.radius * 3;
x += u * m->fitPlane.m[0][2] + v * m->fitPlane.m[0][1];
y += u * m->fitPlane.m[1][2] + v * m->fitPlane.m[1][1];
z += u * m->fitPlane.m[2][2] + v * m->fitPlane.m[2][1];
glVertex3f(x, y, z);
}
glEnd();
glPointSize(1.0);
glLineWidth(2.0);
glBegin(GL_LINES);
glVertex3f(m->fitPlane.cx, m->fitPlane.cy, m->fitPlane.cz);
glVertex3f(m->fitPlane.cx + m->fitPlane.nx * m->fitPlane.radius,
m->fitPlane.cy + m->fitPlane.ny * m->fitPlane.radius,
m->fitPlane.cz + m->fitPlane.nz * m->fitPlane.radius);
glEnd();
glLineWidth(1.0);
}
// todo implement fitPlane
glEnd();
glEndList();
}
inline static void rotVertex(capNvmCam *cam, float ox, float oy, float oz, float x, float y, float z)
{
float v[3] = {x, y, z};
cam->rot->transform(v);
glVertex3f(ox + v[0], oy + v[1], oz + v[2]);
}
static inline int in_range(float x1, float y1, float x2, float y2, float range)
{
float dx = x2 - x1;
float dy = y2 - y1;
return (dx*dx + dy*dy) < (range*range);
}
int capRenderer_AncientGL::loadTexture(capNvmCam *m) {
int width, height;
unsigned char *rgbData = m->nvm->loadJpeg(m, &m->pixSize, true);
if(!rgbData) return 0;
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_2D, this->camTexture);
#ifndef WINDOWS
glActiveTexture(this->camTexture);
#endif
glPixelStorei(GL_PACK_ALIGNMENT, 1);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
GLint tsize = 0;
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &tsize);
if(tsize) {
if (m->pixSize.bufwidth > (unsigned int) tsize) {
/* Texture too wide - decimate width */
int decRate = m->pixSize.bufwidth / (unsigned int) tsize;
unsigned int x, y, c;
unsigned char *p = rgbData;
for (y = 0; y < m->pixSize.height; y++) {
for (x = 0; x < (unsigned int) tsize; x++) {
for(c = 0; c<4; c++)
*(p++) = rgbData[(x * decRate + y * m->pixSize.bufwidth)*4+c];
}
}
m->pixSize.bufwidth = (unsigned int) tsize;
}
if (m->pixSize.bufheight > (unsigned int) tsize)
{
/* Texture too high - decimate height */
int decRate = m->pixSize.bufheight / tsize, y;
for(y = 0; y<tsize; y++)
memmove(rgbData + m->pixSize.bufwidth*y*4, rgbData + m->pixSize.bufwidth*y*4*decRate, m->pixSize.bufwidth*4);
m->pixSize.bufheight = (unsigned int) tsize;
}
}
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, width = m->pixSize.bufwidth, height = m->pixSize.bufheight, 0, GL_RGBA, GL_UNSIGNED_BYTE, rgbData);
capDebug::report(3, "glTexImage2D: %d, tsize = %d", glGetError(), tsize);
capDebug::report(2, "Loaded texture (%dx%d)", width, height);
free(rgbData);
this->texturedCam = m;
return 1;
}
void capRenderer_AncientGL::reinitNvmCam(capNvmCam *m) {
capRenderer * c = m->nvm->renderer;
capNvm * n = m->nvm;
float rsW = c->views[CAV_CAVER].rasterSize, rsH;
struct ancientGL_renderData *md;
if(n->rendererData)
md = (struct ancientGL_renderData*) n->rendererData;
else {
n->rendererData = md = new ancientGL_renderData();
md->flags = 0;
md->displayList = glGenLists(1);
}
if(this->texturedCam != m)
/* if(c->nvmDisplay & CACF_DISPLAY_IMAGE)*/
loadTexture(m);
glNewList(md->displayList, GL_COMPILE);
md->flags |= AGLF_LISTED;
if(!c->nvmDisplay) {
glEndList();
return;
}
rsH = rsW * m->height / m->width;
if(c->nvmDisplay & CACF_DISPLAY_SPATIAL)
{
unsigned int i, pi = m->firstProj;
glBegin(GL_POINTS);
glColor3f(0, 0, 1.0);
for(i = 0; i<m->projCount; i++, pi++)
{
int p = n->camProjs[pi];
int v = n->projs[p].pointIndex;
float ix = n->projs[p].x / m->width * 2.0f - 1.0f, iy = n->projs[p].y / m->height * 2.0f - 1.0f;
if(in_range(ix, iy, m->marker.x, m->marker.y, this->repr->rasterRange))
glVertex3f(n->points[v].x, n->points[v].y, n->points[v].z);
}
glEnd();
}
if(c->nvmDisplay & CACF_DISPLAY_PLANAR)
{
unsigned int i, pi = m->firstProj;
glBegin(GL_LINES);
glColor3f(0, 0, 1.0);
for(i = 0; i<m->projCount; i++, pi++)
{
int p = n->camProjs[pi];
float ix = n->projs[p].x / m->width * 2.0f - 1.0f, iy = n->projs[p].y / m->height * 2.0f - 1.0f;
if(in_range(ix, iy, m->marker.x, m->marker.y, this->repr->rasterRange))
{
if(i == m->activeProj)
glColor3f(1.0, 0, 1.0);
rotVertex(m, m->x, m->y, m->z, (ix-0.02f) * rsW, (iy-0.02f) * rsH, -rsW*0.01f);
rotVertex(m, m->x, m->y, m->z, (ix+0.02f) * rsW, (iy+0.02f) * rsH, -rsW*0.01f);
rotVertex(m, m->x, m->y, m->z, (ix-0.02f) * rsW, (iy+0.02f) * rsH, -rsW*0.01f);
rotVertex(m, m->x, m->y, m->z, (ix+0.02f) * rsW, (iy-0.02f) * rsH, -rsW*0.01f);
if(i == m->activeProj)
glColor3f(0.0, 0, 1.0);
}
}
glEnd();
}
/*
if(m->bestV != -1 && !(c->miscFlags & CMF_NVM_IMAGEONLY))
{
float ix = m->bestX, iy = m->bestY;
int v = m->bestV;
glBegin(GL_LINES);
glColor3f(0, 1.0, 0);
rotVertex(m, m->x, m->y, m->z, (ix-0.02) * rsW, (iy-0.02) * rsH, -rsW*0.01);
rotVertex(m, m->x, m->y, m->z, (ix+0.02) * rsW, (iy+0.02) * rsH, -rsW*0.01);
rotVertex(m, m->x, m->y, m->z, (ix-0.02) * rsW, (iy+0.02) * rsH, -rsW*0.01);
rotVertex(m, m->x, m->y, m->z, (ix+0.02) * rsW, (iy-0.02) * rsH, -rsW*0.01);
glVertex3f(n->model->v[v].x, n->model->v[v].y, n->model->v[v].z);
rotVertex(m, m->x, m->y, m->z, ix * rsW, iy * rsH, 0);
glEnd();
}*/
if(c->nvmDisplay & CACF_DISPLAY_MATCHES)
{
unsigned int i, pi = m->firstProj;
glBegin(GL_LINES);
glColor3f(0, 0, 1.0);
for(i = 0; i<m->projCount; i++, pi++)
{
int p = n->camProjs[pi];
int v = n->projs[p].pointIndex;
float ix = n->projs[p].x / m->width * 2.0f - 1.0f, iy = n->projs[p].y / m->height * 2.0f - 1.0f;
if(in_range(ix, iy, m->marker.x, m->marker.y, this->repr->rasterRange))
{
if(i == m->activeProj)
glColor3f(0, 1.0, 0);
glVertex3f(n->points[v].x, n->points[v].y, n->points[v].z);
rotVertex(m, m->x, m->y, m->z, ix * rsW, iy * rsH, 0);
if(i == m->activeProj)
glColor3f(0, 0, 1.0);
}
}
glEnd();
}
if(c->nvmDisplay & CACF_DISPLAY_IMAGE)
{
glEnable(GL_TEXTURE_2D);
glColor3f(1, 1, 1);
glBegin(GL_QUADS);
glTexCoord2f (0.0, 0.0f);
rotVertex(m, m->x, m->y, m->z, -rsW, -rsH, 0);
glTexCoord2f(m->pixSize.fw, 0.0f);
rotVertex(m, m->x, m->y, m->z, +rsW, -rsH, 0);
glTexCoord2f(m->pixSize.fw, m->pixSize.fh);
rotVertex(m, m->x, m->y, m->z, +rsW, +rsH, 0);
glTexCoord2f (0.0, m->pixSize.fh);
rotVertex(m, m->x, m->y, m->z, -rsW, +rsH, 0);
glEnd();
glDisable(GL_TEXTURE_2D);
}
if(c->nvmDisplay & CACF_DISPLAY_IMAGE)
{
float qx, qy, qz, qlen;
glColor3f(1, 1, 1);
glBegin(GL_LINE_STRIP);
rotVertex(m, m->x, m->y, m->z, -rsW, -rsH, 0);
rotVertex(m, m->x, m->y, m->z, +rsW, -rsH, 0);
rotVertex(m, m->x, m->y, m->z, +rsW, +rsH, 0);
rotVertex(m, m->x, m->y, m->z, -rsW, +rsH, 0);
rotVertex(m, m->x, m->y, m->z, -rsW, -rsH, 0);
glEnd();
glBegin(GL_LINES);
rotVertex(m, m->x, m->y, m->z, 0, 0, -rsW/2.0f);
rotVertex(m, m->x, m->y, m->z, -rsW, -rsH, 0);
rotVertex(m, m->x, m->y, m->z, 0, 0, -rsW/2.0f);
rotVertex(m, m->x, m->y, m->z, +rsW, -rsH, 0);
rotVertex(m, m->x, m->y, m->z, 0, 0, -rsW/2.0f);
rotVertex(m, m->x, m->y, m->z, +rsW, +rsH, 0);
rotVertex(m, m->x, m->y, m->z, 0, 0, -rsW/2.0f);
rotVertex(m, m->x, m->y, m->z, -rsW, +rsH, 0);
glEnd();
glBegin(GL_LINES);
qx = m->dx; qy = m->dy; qz = m->dz;
qlen = sqrtf(qx*qx + qy*qy + qz*qz);
qx /= qlen; qy /= qlen; qz /= qlen;
glVertex3f(m->x, m->y, m->z);
glVertex3f(m->x+qx, m->y+qy, m->z+qz);
glEnd();
}
glEndList();
}
void capRenderer_AncientGL::reshape(unsigned int w, unsigned int h)
{
this->displayWidth = w;
this->displayHeight = h;
this->aspectRatio = ((float) h) / ((float) w);
}
void capRenderer_AncientGL::drawNvmCam()
{
float zoom = this->views[CAV_NVMCAM].orthoZoom;
float ar = 1.0;
struct capNvmCam * cam = this->texturedCam;
glDisable(GL_LIGHTING);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(-1.0/this->aspectRatio*zoom, 1.0/this->aspectRatio*zoom, -1.0*zoom, 1.0*zoom, -1000.0, 1000.0);
glMatrixMode(GL_MODELVIEW);
capAffineMatrix af;
af.setTranslation(this->views[CAV_NVMCAM].panX, this->views[CAV_NVMCAM].panY, 0.0);
glMultMatrixf(af.m);
if(cam)
if(cam->height > 0.0)
ar = ((float) cam->width) / ((float) cam->height);
if(cam)
{
float fracX = cam->marker.x, fracY = cam->marker.y;
glEnable(GL_TEXTURE_2D);
glColor3f(1, 1, 1);
glBegin(GL_QUADS);
glTexCoord2f (0.0, 0.0f);
glVertex3f (-ar, 1.0f, 0.0);
glTexCoord2f(cam->pixSize.fw, 0.0f);
glVertex3f (ar, 1.0f, 0.0);
glTexCoord2f(cam->pixSize.fw, cam->pixSize.fh);
glVertex3f (ar, -1.0f, 0.0);
glTexCoord2f (0.0, cam->pixSize.fh);
glVertex3f (-ar, -1.0f, 0.0);
glEnd();
glDisable(GL_TEXTURE_2D);
glDisable(GL_DEPTH_TEST);
glBegin(GL_LINES);
glColor3f(1.0, 0, 0);
glVertex3f(fracX*ar-0.05f, -fracY, 0);
glVertex3f(fracX*ar+0.05f, -fracY, 0);
glVertex3f(fracX*ar, -fracY-0.05f, 0);
glVertex3f(fracX*ar, -fracY+0.05f, 0);
glEnd();
glColor3f(1.0, 0, 0);
drawCircle(cam->marker.x*ar, -cam->marker.y, this->repr->rasterRange, 1.0, 0);
if(nvmDisplay & CACF_DISPLAY_PLANAR)
{
unsigned int i, pi = cam->firstProj;
glBegin(GL_LINES);
glColor3f(0, 0, 1.0);
for(i = 0; i<cam->projCount; i++, pi++)
{
int p = cam->nvm->camProjs[pi];
float ix = cam->nvm->projs[p].x / cam->width * 2.0f - 1.0f, iy = cam->nvm->projs[p].y / cam->height * 2.0f - 1.0f;
// if(in_range(ix, iy, cam->marker.x, cam->marker.y, this->repr->rasterRange))
{
if(i == cam->activeProj)
glColor3f(1.0, 0, 1.0);
glVertex3f(ix*ar-0.05f, -iy, 0);
glVertex3f(ix*ar+0.05f, -iy, 0);
glVertex3f(ix*ar, -iy-0.05f, 0);
glVertex3f(ix*ar, -iy+0.05f, 0);
if(i == cam->activeProj)
glColor3f(0.0, 0, 1.0);
}
}
glEnd();
}
if(cam->nvm->model->cursor.valid)
{
auto &c = cam->nvm->model->cursor;
if(cam->nvm->reprojectPoint(cam, c.x, c.y, c.z, NULL, NULL, &fracX, &fracY))
{
glBegin(GL_LINES);
glColor3f(0.0f, 1.0f, 0.0f);
glVertex3f(fracX*ar-0.05f, -fracY, 0);
glVertex3f(fracX*ar+0.05f, -fracY, 0);
glVertex3f(fracX*ar, -fracY-0.05f, 0);
glVertex3f(fracX*ar, -fracY+0.05f, 0);
glEnd();
}
}
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glDisable(GL_LIGHTING);
glRasterPos2f(-0.99f, 0.8);
glColor3f(1.0, 0.0, 0.0);
glEnable(GL_DEPTH_TEST);
}
}
void capRenderer_AncientGL::uninitNvmCam(capNvmCam *n) {
this->uninitRenderData((struct ancientGL_renderData**) &n->nvm->rendererData);
}
void capRenderer::setupPerspective(float fovY, float ar, float zNear, float zFar)
{
GLdouble fW, fH;
fH = tan( fovY / 360.0 * CAP_PI ) * zNear;
fW = fH * ar;
glFrustum(-fW, fW, -fH, fH, zNear, zFar);
}
void capRenderer_AncientGL::setupProjection(int p)
{
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
if(p == CAV_CAVER)
setupPerspective(this->views[CAV_CAVER].fov, (GLfloat) this->displayWidth / (GLfloat) this->displayHeight, 0.1 , 10000.0);
else if((p != CAV_NVMCAM) && (p != CAV_DIPHIST))
{
GLdouble heightZoom = this->views[p].orthoZoom * ((GLfloat) this->displayHeight) / ((GLfloat) this->displayWidth);
glOrtho(-this->views[p].orthoZoom, this->views[p].orthoZoom, -heightZoom, heightZoom, -this->views[p].orthoClip + this->views[p].zOffset, this->views[p].orthoClip + this->views[p].zOffset);
}
glMatrixMode(GL_MODELVIEW);
}
void capRenderer_AncientGL::applyAffine(capAffineMatrix *af)
{
glMultMatrixf(af->m);
}
void capRenderer_AncientGL::setupCamera(int proj)
{
struct capCamera * cam = &this->cam;
float yaw = cam->yaw, pitch = cam->pitch;
switch(proj)
{
case CAV_CAVER: break; /* Defaults */
case CAV_PLAN: pitch = -CAP_PI/2.0f; break;
case CAV_PROFILE: pitch = 0; yaw -= CAP_PI/2.0f; break;
case CAV_XSECT: pitch = 0; break;
}
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
if(proj == CAV_NVMCAM) return;
if(proj == CAV_DIPHIST) return;
capAffineMatrix res;
capAffineMatrix m;
m.setRotation(-yaw / CAP_PI * 180.0f - 90.0f, 1); res.compose(&m);
m.setRotation(pitch / CAP_PI * 180.0f, 0); res.compose(&m);
this->applyAffine(&res);
glTranslatef(-cam->x, -cam->y, -cam->z);
}
void capRenderer_AncientGL::setupLight()
{
// todo support light
}
void capRenderer_AncientGL::drawNvm(capNvm *nvm)
{
struct capNvmCam *cam = nvm->activePtr;
if(!cam) return;
auto *rd = (ancientGL_renderData *) nvm->rendererData;
if(!rd) return;
glPointSize(2.0);
glCallList(rd->displayList);
float rsW = this->views[CAV_CAVER].rasterSize, rsH = rsW * cam->height / cam->width;
if(((int) cam->camIndex == nvm->activeCam) && (this->nvmDisplay & CACF_DISPLAY_IMAGE))
{
float fracX = cam->marker.x, fracY = cam->marker.y;
// printf("display pointer at %.3f %.3f (cX = %d, cY = %d)\n", fracX, fracY, c->currentX, c->currentY);
glColor3f(1.0, 0, 0);
glDisable(GL_DEPTH_TEST);
glBegin(GL_LINES);
rotVertex(cam, cam->x, cam->y, cam->z, (fracX-0.05f)*rsW, fracY*rsH, 0);
rotVertex(cam, cam->x, cam->y, cam->z, (fracX+0.05f)*rsW, fracY*rsH, 0);
rotVertex(cam, cam->x, cam->y, cam->z, fracX*rsW, (fracY-0.05f)*rsH, 0);
rotVertex(cam, cam->x, cam->y, cam->z, fracX*rsW, (fracY+0.05f)*rsH, 0);
glEnd();
glEnable(GL_DEPTH_TEST);
}
/* Draw active match */
if(nvmDisplay & CACF_DISPLAY_MATCHES)
{
int p = nvm->camProjs[(cam->activeProj % cam->projCount) + cam->firstProj];
int v = nvm->projs[p].pointIndex;
float ix = nvm->projs[p].x / cam->width * 2.0f - 1.0f, iy = nvm->projs[p].y / cam->height * 2.0f - 1.0f;
glDisable(GL_DEPTH_TEST);
glBegin(GL_LINES);
glColor3f(1.0, 0, 1.0);
glVertex3f(nvm->points[v].x, nvm->points[v].y, nvm->points[v].z);
rotVertex(cam, cam->x, cam->y, cam->z, ix * rsW, iy * rsH, 0);
glEnd();
glEnable(GL_DEPTH_TEST);
}
}
void capRenderer_AncientGL::drawModel(capModel *m)
{
auto *rd = (ancientGL_renderData *) m->rendererData;
if(!rd) return;
glPushMatrix();
if(rd->flags & AGLF_LISTED)
{
glMultMatrixf(m->affineMatrix.m);
glGetFloatv(GL_MODELVIEW_MATRIX, m->modelviewMatrix.m);
if(m->flags & CAMF_EDGES)
glPolygonMode( GL_FRONT_AND_BACK, GL_LINE);
glCallList(rd->displayList);
glPolygonMode( GL_FRONT_AND_BACK, GL_FILL);
}
if(m->cursor.valid)
{
float e = 0.05f / m->affineMatrix.getScale();
glBegin(GL_LINES);
glColor3f(0.0f, 1.0f, 0.0f);
glVertex3f(m->cursor.x + e, m->cursor.y, m->cursor.z);
glVertex3f(m->cursor.x - e, m->cursor.y, m->cursor.z);
glVertex3f(m->cursor.x, m->cursor.y + e, m->cursor.z);
glVertex3f(m->cursor.x, m->cursor.y - e, m->cursor.z);
glVertex3f(m->cursor.x, m->cursor.y, m->cursor.z - e);
glVertex3f(m->cursor.x, m->cursor.y, m->cursor.z + e);
glEnd();
}
if(m->nvm)
{
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
drawNvm(m->nvm);
glDisable(GL_BLEND);
}
glPopMatrix();
}
void capRenderer_AncientGL::drawView(std::vector <capModel*> &models, int proj)
{
unsigned int i;
GLfloat lightpos[4], lx, ly, lz;
glLoadIdentity();
glClearColor(0.0, 0.0, 0.0, 1.0);
this->setupProjection(proj);
this->setupCamera(proj);
if(this->views[proj].fogStart != 0.0)
{
GLfloat fogColor[4] = {0.0, 0.0, 0.0, 1.0};
GLint fogMode = GL_LINEAR;
glEnable(GL_FOG);
glFogi(GL_FOG_MODE, fogMode);
glFogfv(GL_FOG_COLOR, fogColor);
glFogf(GL_FOG_DENSITY, 0.35);
glHint(GL_FOG_HINT, GL_DONT_CARE);
glFogf(GL_FOG_START, 0);
glFogf(GL_FOG_END, this->views[proj].fogStart);
}
else
glDisable(GL_FOG);
glColor3f(0, 1, 0);
glPointSize(1);
const GLfloat lightDiffuse[] = { 1.0, 1.0, 1.0, 1.0 };
glLightfv(GL_LIGHT0, GL_DIFFUSE, lightDiffuse);
if(this->light.lightFlags & CLF_DRAGGED)
{
ly = this->cam.y + this->light.lightHeight;
lx = cos(this->cam.yaw - CAP_PI_2) * this->light.lightOffset + this->cam.x;
lz = sin(this->cam.yaw - CAP_PI_2) * this->light.lightOffset + this->cam.z;
}
else
{
lx = this->light.x;
ly = this->light.y;
lz = this->light.z;
}
lightpos[0] = lx;
lightpos[1] = ly;
lightpos[2] = lz;
lightpos[3] = 1.0;
glLightfv(GL_LIGHT0, GL_POSITION, lightpos);
glLightf(GL_LIGHT0, GL_CONSTANT_ATTENUATION, this->light.lightConstAtt);
glLightf(GL_LIGHT0, GL_LINEAR_ATTENUATION, this->light.lightLinAtt);
glLightf(GL_LIGHT0, GL_QUADRATIC_ATTENUATION, this->light.lightQuadAtt);
glGetFloatv(GL_MODELVIEW_MATRIX, this->views[proj].projMatrix.m);
for(i = 0; i < models.size(); i++)
drawModel(models[i]);
glDisable(GL_DEPTH_TEST);
this->drawCamera();
if(proj == CAV_PLAN || proj == CAV_PROFILE || proj == CAV_CAVER)
{
float vx1, vz1, vx2, vz2, yaw = this->cam.yaw, d = this->views[CAV_XSECT].orthoZoom;
float tx = this->cam.x, ty = this->cam.y, tz = this->cam.z;
vx1 = cosf(yaw - CAP_PI_2) * d;
vz1 = sinf(yaw - CAP_PI_2) * d;
vx2 = cosf(yaw + CAP_PI_2) * d;
vz2 = sinf(yaw + CAP_PI_2) * d;
tx += cosf(yaw) * this->views[CAV_XSECT].zOffset;
tz += sinf(yaw) * this->views[CAV_XSECT].zOffset;
if((proj == CAV_CAVER) && (this->views[CAV_XSECT].zOffset != 0.0))
{
glEnable(GL_BLEND);
glEnable(GL_DEPTH_TEST);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4ub(this->xRgba[0], this->xRgba[1], this->xRgba[2], this->xRgba[3]);
// glColor4f(0.0, 0.0, 0.0, 0.5);
glBegin(GL_QUADS);
glVertex3f(tx + vx1*2.0f, ty - d*2.0f, tz + vz1*2.0f);
glVertex3f(tx + vx1*2.0f, ty + d*2.0f, tz + vz1*2.0f);
glVertex3f(tx + vx2*2.0f, ty + d*2.0f, tz + vz2*2.0f);
glVertex3f(tx + vx2*2.0f, ty - d*2.0f, tz + vz2*2.0f);
glEnd();
glDisable(GL_BLEND);
glDisable(GL_DEPTH_TEST);
}
else
{
glColor3f(0.0, 1.0, 1.0);
glBegin(GL_LINES);
glVertex3f(tx + vx1, ty, tz + vz1);
glVertex3f(tx + vx2, ty, tz + vz2);
glEnd();
}
}
if(proj == CAV_XSECT )
if(wantRuler)
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glColor3f(0.0, 1.0, 1.0);
glBegin(GL_LINES);
glVertex3f(ruler.x1, ruler.y1, -views[proj].zOffset);
glVertex3f(ruler.x2, ruler.y2, -views[proj].zOffset);
glEnd();
glPopMatrix();
}
if(proj == CAV_XSECT || (this->currentView != CAV_FOURVIEW && this->currentView != CAV_COMPARE && this->currentView != CAV_GEOLOGIST))
{
glMatrixMode(GL_MODELVIEW);
glPushMatrix();
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glPushMatrix();
glLoadIdentity();
if(proj != CAV_CAVER)
{
/* this->views[p].orthoZoom in model units == 1 in view
1 in model units == x width in view
x = 1/orthoZoom
*/
float unitWidth = 1.0f / this->views[proj].orthoZoom;
float unit = 1;
while(unitWidth > 1.0)
{
unitWidth /= 10;
unit *= 0.1;
}
while(unitWidth < 0.05)
{
unitWidth *= 10;
unit *= 10;
}
glDisable(GL_LIGHTING);
glColor3f(1, 0, 0);
glBegin(GL_LINES);
glVertex3f(-0.90f, 0.92, 0);
glVertex3f(-0.90f + unitWidth, 0.92, 0);
glEnd();
glRasterPos2f(0.5, 0.9);
}
glDisable(GL_LIGHTING);
glRasterPos2f(-0.99f, -0.99f);
glMatrixMode(GL_PROJECTION);
glPopMatrix();
glMatrixMode(GL_MODELVIEW);
glPopMatrix();
}
glEnable(GL_DEPTH_TEST);
}
void capRenderer_AncientGL::drawCamera() {
struct capCamera *cam = &this->cam;
float vx, vy, vz, yaw = cam->yaw, pitch = cam->pitch;
vx = cosf(yaw) * cosf(pitch);
vy = sinf(pitch);
vz = sinf(yaw) * cosf(pitch);
glColor3f(0, 1, 0);
glPointSize(5);
glBegin(GL_POINTS);
glVertex3f(cam->x, cam->y, cam->z);
glEnd();
glColor3f(1, 0, 0);
glBegin(GL_LINES);
glVertex3f(cam->x, cam->y, cam->z);
glVertex3f(cam->x + vx * 10.0f, cam->y + vy * 10.0f, cam->z + vz * 10.0f);
glEnd();
}
void capRenderer_AncientGL::renderScene(std::vector <capModel*> &models)
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glClearDepth(1.0f);
glEnable(GL_DEPTH_TEST);
glDisable(GL_CULL_FACE);
glDepthFunc(GL_LEQUAL);
glViewport(0, 0, (GLsizei) this->displayWidth, (GLsizei) this->displayHeight);
if(this->currentView == CAV_FOURVIEW || this->currentView == CAV_COMPARE || this->currentView == CAV_GEOLOGIST)
{
GLsizei w = this->displayWidth, h = this->displayHeight;
glViewport(0, 0, w/2, h/2); drawView(models, CAV_PLAN);
glViewport(w/2, 0, w/2, h/2);
/* if(this->currentView == CAV_GEOLOGIST)
capoc_draw_diphist(&state);
else*/
if(this->currentView == CAV_COMPARE)
drawNvmCam();
else
drawView(models, CAV_PROFILE);
glViewport(w/2, h/2, w/2, h/2); drawView(models, CAV_CAVER);
glViewport(0, h/2, w/2, h/2);
drawView(models, CAV_XSECT);
}
else if(this->currentView == CAV_NVMCAM)
drawNvmCam();
/* else if(this->currentView == CAV_DIPHIST)
capoc_draw_diphist(&state);*/
// todo dipHist