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/*
A* -------------------------------------------------------------------
B* This file contains source code for the PyMOL computer program
C* Copyright (c) Schrodinger, LLC.
D* -------------------------------------------------------------------
E* It is unlawful to modify or remove this copyright notice.
F* -------------------------------------------------------------------
G* Please see the accompanying LICENSE file for further information.
H* -------------------------------------------------------------------
I* Additional authors of this source file include:
-*
-*
-*
Z* -------------------------------------------------------------------
*/
#include "RepSphere.h"
#include "RepSphereImmediate.h"
#include "ShaderMgr.h"
#include "Sphere.h"
#ifndef PURE_OPENGL_ES_2
static void RenderSphereMode_Immediate_Triangles(PyMOLGlobals *G, CoordSet *cs,
ObjectMolecule *obj,
int *repActive,
float sphere_scale) {
/* triangle-based spheres */
int ds =
SettingGet_i(G, cs->Setting.get(), obj->Setting.get(), cSetting_sphere_quality);
if (ds < 0) ds = 0;
if (ds > 4) ds = 4;
SphereRec *sp = G->Sphere->Sphere[ds];
{
int a;
int nIndex = cs->NIndex;
const AtomInfoType *atomInfo = obj->AtomInfo.data();
const int *i2a = cs->IdxToAtm.data();
int last_color = -1;
const float *v = cs->Coord.data();
int *sp_Sequence = sp->Sequence;
int *sp_StripLen = sp->StripLen;
int sp_NStrip = sp->NStrip;
Vector3f *sp_dot = sp->dot;
for (a = 0; a < nIndex; a++) {
const AtomInfoType *ai = atomInfo + *(i2a++);
if (GET_BIT(ai->visRep, cRepSphere)) {
float vdw = ai->vdw * sphere_scale;
int c = ai->color;
float v0 = v[0];
float v1 = v[1];
float v2 = v[2];
(*repActive) = true;
if (c != last_color) {
last_color = c;
glColor3fv(ColorGet(G, c));
}
{
int *s = sp_StripLen;
int *q = sp_Sequence;
int b;
for (b = 0; b < sp_NStrip; b++) {
int nc = *(s++);
glBegin(GL_TRIANGLE_STRIP);
for (c = 0; c < nc; c++) {
float *sp_dot_q = &sp_dot[*(q++)][0];
glNormal3fv(sp_dot_q); /* normal */
glVertex3f(v0 + vdw * sp_dot_q[0], v1 + vdw * sp_dot_q[1],
v2 + vdw * sp_dot_q[2]);
}
glEnd();
}
}
}
v += 3;
}
}
}
static void RenderSphereMode_Immediate_1_2_3(PyMOLGlobals *G, RenderInfo *info,
CoordSet *cs, ObjectMolecule *obj,
int *repActive, float pixel_scale,
int sphere_mode) {
/* sphere_mode is 1, 2, or 3 */
float max_radius = SettingGet_f(G, cs->Setting.get(), obj->Setting.get(),
cSetting_sphere_point_max_size) *
3 * pixel_scale;
int clamp_size_flag = (max_radius >= 0.0F);
int a;
int nIndex = cs->NIndex;
const AtomInfoType *atomInfo = obj->AtomInfo.data();
const int* i2a = cs->IdxToAtm.data();
int last_color = -1;
const float *v = cs->Coord.data();
float last_radius = -1.0F;
if (!info->line_lighting) glDisable(GL_LIGHTING);
glBegin(GL_POINTS);
for (a = 0; a < nIndex; a++) {
const AtomInfoType *ai = atomInfo + *(i2a++);
if (GET_BIT(ai->visRep, cRepSphere)) {
int c = ai->color;
(*repActive) = true;
if (c != last_color) {
last_color = c;
glColor3fv(ColorGet(G, c));
}
switch (sphere_mode) {
case 1:
case 6:
glVertex3fv(v);
break;
case 2:
case 3:
case 7:
case 8: {
float cur_radius = ai->vdw * pixel_scale;
if (last_radius != cur_radius) {
glEnd();
if (clamp_size_flag)
if (cur_radius > max_radius) cur_radius = max_radius;
glPointSize(cur_radius);
glBegin(GL_POINTS);
last_radius = cur_radius;
}
glVertex3fv(v);
} break;
}
}
v += 3;
}
glEnd();
glEnable(GL_LIGHTING);
if (sphere_mode == 3) {
glDisable(GL_POINT_SMOOTH);
glAlphaFunc(GL_GREATER, 0.05F);
} else {
glEnable(GL_ALPHA_TEST);
}
}
static
void RenderImmediate_DoPreGL(PyMOLGlobals *G, int sphere_mode,
float *pixel_scale, CoordSet *cs,
ObjectMolecule *obj, float sphere_scale) {
switch (sphere_mode) {
case 2:
case 7:
glHint(GL_POINT_SMOOTH_HINT, GL_FASTEST);
glDisable(GL_POINT_SMOOTH);
glDisable(GL_ALPHA_TEST);
(*pixel_scale) *= 1.4F;
glPointSize(1.0F);
break;
case 3:
case 8:
glEnable(GL_POINT_SMOOTH);
glAlphaFunc(GL_GREATER, 0.5F);
glEnable(GL_ALPHA_TEST);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glPointSize(1.0F);
(*pixel_scale) *= 2.0F;
break;
case 4:
glEnable(GL_POINT_SMOOTH);
glEnable(GL_ALPHA_TEST);
glHint(GL_POINT_SMOOTH_HINT, GL_NICEST);
glPointSize(1.0F);
(*pixel_scale) *= 2.0F;
break;
default:
glHint(GL_POINT_SMOOTH_HINT, GL_FASTEST);
glDisable(GL_POINT_SMOOTH);
glDisable(GL_ALPHA_TEST);
glPointSize(SettingGet_f(G, cs->Setting.get(), obj->Setting.get(),
cSetting_sphere_point_size));
break;
}
}
#endif
void RepSphereRenderImmediate(CoordSet *cs, RenderInfo *info) {
#ifndef PURE_OPENGL_ES_2
PyMOLGlobals *G = cs->G;
if (info->ray || info->pick || (!(G->HaveGUI && G->ValidContext)))
return;
else {
int repActive = false;
ObjectMolecule *obj = cs->Obj;
int sphere_mode =
SettingGet_i(G, cs->Setting.get(), obj->Setting.get(), cSetting_sphere_mode);
float sphere_scale =
SettingGet_f(G, cs->Setting.get(), obj->Setting.get(), cSetting_sphere_scale);
if (sphere_mode > 0) { /* point-based modees */
float pixel_scale = 1.0F / info->vertex_scale;
RenderImmediate_DoPreGL(G, sphere_mode, &pixel_scale, cs, obj,
sphere_scale);
switch (sphere_mode) {
case 5:
// removed (was ARB shader)
break;
case 4:
// sphere_mode 4 taken out: many points per sphere to make them look
// good, one specular light
break;
default:
RenderSphereMode_Immediate_1_2_3(G, info, cs, obj, &repActive,
pixel_scale, sphere_mode);
}
} else {
RenderSphereMode_Immediate_Triangles(G, cs, obj, &repActive,
sphere_scale);
}
if (!repActive) /* didn't draw a single sphere, so we can skip this
representation next time around */
cs->Active[cRepSphere] = false;
}
#endif
}
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