640 lines
15 KiB
C++
640 lines
15 KiB
C++
/*
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PrtView plugin for GtkRadiant
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Copyright (C) 2001 Geoffrey Dewan, Loki software and qeradiant.com
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "portals.h"
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#include "globaldefs.h"
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#include <string.h>
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#include <stdlib.h>
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#if !GDEF_OS_MACOS
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#include <search.h>
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#endif
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#include <stdio.h>
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#include "iglrender.h"
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#include "cullable.h"
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#include "prtview.h"
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const int LINE_BUF = 1000;
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CPortals portals;
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CPortalsRender render;
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int compare(const void *arg1, const void *arg2)
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{
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if (portals.portal[*((int *) arg1)].dist > portals.portal[*((int *) arg2)].dist) {
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return -1;
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} else if (portals.portal[*((int *) arg1)].dist < portals.portal[*((int *) arg2)].dist) {
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return 1;
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}
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return 0;
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}
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CBspPortal::CBspPortal()
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{
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memset(this, 0, sizeof(CBspPortal));
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}
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CBspPortal::~CBspPortal()
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{
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delete[] point;
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delete[] inner_point;
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}
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bool CBspPortal::Build(char *def)
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{
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char *c = def;
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unsigned int n;
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int dummy1, dummy2;
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int res_cnt, i;
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if (portals.hint_flags) {
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res_cnt = sscanf(def, "%u %d %d %d", &point_count, &dummy1, &dummy2, (int *) &hint);
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} else {
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sscanf(def, "%u", &point_count);
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hint = false;
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}
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if (point_count < 3 || (portals.hint_flags && res_cnt < 4)) {
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return false;
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}
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point = new CBspPoint[point_count];
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inner_point = new CBspPoint[point_count];
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for (n = 0; n < point_count; n++) {
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for (; *c != 0 && *c != '('; c++) {}
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if (*c == 0) {
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return false;
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}
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c++;
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sscanf(c, "%f %f %f", point[n].p, point[n].p + 1, point[n].p + 2);
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center.p[0] += point[n].p[0];
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center.p[1] += point[n].p[1];
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center.p[2] += point[n].p[2];
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if (n == 0) {
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for (i = 0; i < 3; i++) {
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min[i] = point[n].p[i];
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max[i] = point[n].p[i];
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}
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} else {
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for (i = 0; i < 3; i++) {
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if (min[i] > point[n].p[i]) {
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min[i] = point[n].p[i];
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}
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if (max[i] < point[n].p[i]) {
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max[i] = point[n].p[i];
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}
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}
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}
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}
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center.p[0] /= (float) point_count;
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center.p[1] /= (float) point_count;
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center.p[2] /= (float) point_count;
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for (n = 0; n < point_count; n++) {
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inner_point[n].p[0] = (0.01f * center.p[0]) + (0.99f * point[n].p[0]);
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inner_point[n].p[1] = (0.01f * center.p[1]) + (0.99f * point[n].p[1]);
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inner_point[n].p[2] = (0.01f * center.p[2]) + (0.99f * point[n].p[2]);
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}
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fp_color_random[0] = (float) (rand() & 0xff) / 255.0f;
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fp_color_random[1] = (float) (rand() & 0xff) / 255.0f;
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fp_color_random[2] = (float) (rand() & 0xff) / 255.0f;
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fp_color_random[3] = 1.0f;
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return true;
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}
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CPortals::CPortals()
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{
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memset(this, 0, sizeof(CPortals));
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}
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CPortals::~CPortals()
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{
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Purge();
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}
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void CPortals::Purge()
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{
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delete[] portal;
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delete[] portal_sort;
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portal = NULL;
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portal_sort = NULL;
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portal_count = 0;
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/*
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delete[] node;
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node = NULL;
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node_count = 0;
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*/
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}
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void CPortals::Load()
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{
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char buf[LINE_BUF + 1];
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memset(buf, 0, LINE_BUF + 1);
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Purge();
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globalOutputStream() << MSG_PREFIX "Loading portal file " << fn << ".\n";
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FILE *in;
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in = fopen(fn, "rt");
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if (in == NULL) {
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globalOutputStream() << " ERROR - could not open file.\n";
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return;
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}
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if (!fgets(buf, LINE_BUF, in)) {
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fclose(in);
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globalOutputStream() << " ERROR - File ended prematurely.\n";
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return;
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}
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if (strncmp("PRT1", buf, 4) != 0) {
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fclose(in);
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globalOutputStream() << " ERROR - File header indicates wrong file type (should be \"PRT1\").\n";
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return;
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}
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if (!fgets(buf, LINE_BUF, in)) {
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fclose(in);
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globalOutputStream() << " ERROR - File ended prematurely.\n";
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return;
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}
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sscanf(buf, "%u", &node_count);
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/*
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if(node_count > 0xFFFF)
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{
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fclose(in);
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node_count = 0;
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globalOutputStream() << " ERROR - Extreme number of nodes, aborting.\n";
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return;
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}
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*/
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if (!fgets(buf, LINE_BUF, in)) {
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fclose(in);
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node_count = 0;
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globalOutputStream() << " ERROR - File ended prematurely.\n";
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return;
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}
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sscanf(buf, "%u", &portal_count);
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if (portal_count > 0xFFFF) {
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fclose(in);
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portal_count = 0;
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node_count = 0;
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globalOutputStream() << " ERROR - Extreme number of portals, aborting.\n";
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return;
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}
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if (portal_count == 0) {
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fclose(in);
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portal_count = 0;
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node_count = 0;
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globalOutputStream() << " ERROR - number of portals equals 0, aborting.\n";
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return;
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}
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// node = new CBspNode[node_count];
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portal = new CBspPortal[portal_count];
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portal_sort = new int[portal_count];
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unsigned int n;
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bool first = true;
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unsigned test_vals_1, test_vals_2;
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hint_flags = false;
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for (n = 0; n < portal_count;) {
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if (!fgets(buf, LINE_BUF, in)) {
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fclose(in);
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Purge();
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globalOutputStream() << " ERROR - Could not find information for portal number " << n + 1 << " of "
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<< portal_count << ".\n";
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return;
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}
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if (!portal[n].Build(buf)) {
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if (first && sscanf(buf, "%d %d", (int *) &test_vals_1, (int *) &test_vals_2) ==
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1) { // skip additional counts of later data, not needed
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// We can count on hint flags being in the file
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hint_flags = true;
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continue;
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}
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first = false;
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fclose(in);
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Purge();
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globalOutputStream() << " ERROR - Information for portal number " << n + 1 << " of " << portal_count
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<< " is not formatted correctly.\n";
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return;
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}
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n++;
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}
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fclose(in);
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globalOutputStream() << " " << node_count << " portals read in.\n";
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}
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#include "math/matrix.h"
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const char *g_state_solid = "$plugins/prtview/solid";
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const char *g_state_solid_outline = "$plugins/prtview/solid_outline";
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const char *g_state_wireframe = "$plugins/prtview/wireframe";
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Shader *g_shader_solid = 0;
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Shader *g_shader_solid_outline = 0;
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Shader *g_shader_wireframe = 0;
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void Portals_constructShaders()
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{
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OpenGLState state;
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GlobalOpenGLStateLibrary().getDefaultState(state);
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state.m_state = RENDER_COLOURWRITE | RENDER_DEPTHWRITE;
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state.m_sort = OpenGLState::eSortOverlayFirst;
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state.m_linewidth = portals.width_2d * 0.5f;
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state.m_colour[0] = portals.fp_color_2d[0];
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state.m_colour[1] = portals.fp_color_2d[1];
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state.m_colour[2] = portals.fp_color_2d[2];
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state.m_colour[3] = portals.fp_color_2d[3];
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if (portals.aa_2d) {
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state.m_state |= RENDER_BLEND | RENDER_LINESMOOTH;
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}
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GlobalOpenGLStateLibrary().insert(g_state_wireframe, state);
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GlobalOpenGLStateLibrary().getDefaultState(state);
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state.m_state = RENDER_FILL | RENDER_BLEND | RENDER_COLOURWRITE | RENDER_COLOURCHANGE | RENDER_SMOOTH;
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if (portals.aa_3d) {
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state.m_state |= RENDER_POLYGONSMOOTH;
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}
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switch (portals.zbuffer) {
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case 1:
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state.m_state |= RENDER_DEPTHTEST;
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break;
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case 2:
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break;
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default:
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state.m_state |= RENDER_DEPTHTEST;
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state.m_state |= RENDER_DEPTHWRITE;
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}
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if (portals.fog) {
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state.m_state |= RENDER_FOG;
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state.m_fog.mode = GL_EXP;
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state.m_fog.density = 0.001f;
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state.m_fog.start = 10.0f;
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state.m_fog.end = 10000.0f;
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state.m_fog.index = 0;
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state.m_fog.colour[0] = portals.fp_color_fog[0];
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state.m_fog.colour[1] = portals.fp_color_fog[1];
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state.m_fog.colour[2] = portals.fp_color_fog[2];
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state.m_fog.colour[3] = portals.fp_color_fog[3];
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}
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GlobalOpenGLStateLibrary().insert(g_state_solid, state);
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GlobalOpenGLStateLibrary().getDefaultState(state);
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state.m_state = RENDER_COLOURWRITE | RENDER_DEPTHWRITE;
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state.m_sort = OpenGLState::eSortOverlayFirst;
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state.m_linewidth = portals.width_3d * 0.5f;
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state.m_colour[0] = portals.fp_color_3d[0];
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state.m_colour[1] = portals.fp_color_3d[1];
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state.m_colour[2] = portals.fp_color_3d[2];
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state.m_colour[3] = portals.fp_color_3d[3];
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if (portals.aa_3d) {
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state.m_state |= RENDER_LINESMOOTH;
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}
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switch (portals.zbuffer) {
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case 1:
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state.m_state |= RENDER_DEPTHTEST;
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break;
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case 2:
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break;
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default:
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state.m_state |= RENDER_DEPTHTEST;
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state.m_state |= RENDER_DEPTHWRITE;
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}
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if (portals.fog) {
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state.m_state |= RENDER_FOG;
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state.m_fog.mode = GL_EXP;
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state.m_fog.density = 0.001f;
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state.m_fog.start = 10.0f;
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state.m_fog.end = 10000.0f;
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state.m_fog.index = 0;
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state.m_fog.colour[0] = portals.fp_color_fog[0];
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state.m_fog.colour[1] = portals.fp_color_fog[1];
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state.m_fog.colour[2] = portals.fp_color_fog[2];
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state.m_fog.colour[3] = portals.fp_color_fog[3];
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}
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GlobalOpenGLStateLibrary().insert(g_state_solid_outline, state);
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g_shader_solid = GlobalShaderCache().capture(g_state_solid);
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g_shader_solid_outline = GlobalShaderCache().capture(g_state_solid_outline);
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g_shader_wireframe = GlobalShaderCache().capture(g_state_wireframe);
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}
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void Portals_destroyShaders()
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{
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GlobalShaderCache().release(g_state_solid);
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GlobalShaderCache().release(g_state_solid_outline);
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GlobalShaderCache().release(g_state_wireframe);
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GlobalOpenGLStateLibrary().erase(g_state_solid);
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GlobalOpenGLStateLibrary().erase(g_state_solid_outline);
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GlobalOpenGLStateLibrary().erase(g_state_wireframe);
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}
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void Portals_shadersChanged()
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{
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Portals_destroyShaders();
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portals.FixColors();
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Portals_constructShaders();
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}
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void CPortals::FixColors()
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{
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fp_color_2d[0] = (float) GetRValue(color_2d) / 255.0f;
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fp_color_2d[1] = (float) GetGValue(color_2d) / 255.0f;
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fp_color_2d[2] = (float) GetBValue(color_2d) / 255.0f;
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fp_color_2d[3] = 1.0f;
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fp_color_3d[0] = (float) GetRValue(color_3d) / 255.0f;
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fp_color_3d[1] = (float) GetGValue(color_3d) / 255.0f;
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fp_color_3d[2] = (float) GetBValue(color_3d) / 255.0f;
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fp_color_3d[3] = 1.0f;
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fp_color_fog[0] = 0.0f; //(float)GetRValue(color_fog) / 255.0f;
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fp_color_fog[1] = 0.0f; //(float)GetGValue(color_fog) / 255.0f;
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fp_color_fog[2] = 0.0f; //(float)GetBValue(color_fog) / 255.0f;
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fp_color_fog[3] = 1.0f;
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}
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void CPortalsRender::renderWireframe(Renderer &renderer, const VolumeTest &volume) const
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{
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if (!portals.show_2d || portals.portal_count < 1) {
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return;
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}
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renderer.SetState(g_shader_wireframe, Renderer::eWireframeOnly);
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renderer.addRenderable(m_drawWireframe, g_matrix4_identity);
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}
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void CPortalsDrawWireframe::render(RenderStateFlags state) const
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{
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unsigned int n, p;
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for (n = 0; n < portals.portal_count; n++) {
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glBegin(GL_LINE_LOOP);
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for (p = 0; p < portals.portal[n].point_count; p++)
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glVertex3fv(portals.portal[n].point[p].p);
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glEnd();
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}
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}
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CubicClipVolume calculateCubicClipVolume(const Matrix4 &viewproj)
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{
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CubicClipVolume clip;
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clip.cam = vector4_projected(
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matrix4_transformed_vector4(
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matrix4_full_inverse(viewproj),
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Vector4(0, 0, -1, 1)
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)
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);
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clip.min[0] = clip.cam[0] + (portals.clip_range * 64.0f);
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clip.min[1] = clip.cam[1] + (portals.clip_range * 64.0f);
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clip.min[2] = clip.cam[2] + (portals.clip_range * 64.0f);
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clip.max[0] = clip.cam[0] - (portals.clip_range * 64.0f);
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clip.max[1] = clip.cam[1] - (portals.clip_range * 64.0f);
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clip.max[2] = clip.cam[2] - (portals.clip_range * 64.0f);
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return clip;
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}
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void CPortalsRender::renderSolid(Renderer &renderer, const VolumeTest &volume) const
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{
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if (!portals.show_3d || portals.portal_count < 1) {
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return;
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}
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CubicClipVolume clip = calculateCubicClipVolume(
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matrix4_multiplied_by_matrix4(volume.GetProjection(), volume.GetModelview()));
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if (portals.polygons) {
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renderer.SetState(g_shader_solid, Renderer::eWireframeOnly);
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renderer.SetState(g_shader_solid, Renderer::eFullMaterials);
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m_drawSolid.clip = clip;
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renderer.addRenderable(m_drawSolid, g_matrix4_identity);
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}
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if (portals.lines) {
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renderer.SetState(g_shader_solid_outline, Renderer::eWireframeOnly);
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renderer.SetState(g_shader_solid_outline, Renderer::eFullMaterials);
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m_drawSolidOutline.clip = clip;
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renderer.addRenderable(m_drawSolidOutline, g_matrix4_identity);
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}
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}
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void CPortalsDrawSolid::render(RenderStateFlags state) const
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{
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float trans = (100.0f - portals.trans_3d) / 100.0f;
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unsigned int n, p;
|
|
|
|
if (portals.zbuffer != 0) {
|
|
float d;
|
|
|
|
for (n = 0; n < portals.portal_count; n++) {
|
|
d = (float) clip.cam[0] - portals.portal[n].center.p[0];
|
|
portals.portal[n].dist = d * d;
|
|
|
|
d = (float) clip.cam[1] - portals.portal[n].center.p[1];
|
|
portals.portal[n].dist += d * d;
|
|
|
|
d = (float) clip.cam[2] - portals.portal[n].center.p[2];
|
|
portals.portal[n].dist += d * d;
|
|
|
|
portals.portal_sort[n] = n;
|
|
}
|
|
|
|
qsort(portals.portal_sort, portals.portal_count, 4, compare);
|
|
|
|
for (n = 0; n < portals.portal_count; n++) {
|
|
if (portals.polygons == 2 && !portals.portal[portals.portal_sort[n]].hint) {
|
|
continue;
|
|
}
|
|
|
|
if (portals.clip) {
|
|
if (clip.min[0] < portals.portal[portals.portal_sort[n]].min[0]) {
|
|
continue;
|
|
} else if (clip.min[1] < portals.portal[portals.portal_sort[n]].min[1]) {
|
|
continue;
|
|
} else if (clip.min[2] < portals.portal[portals.portal_sort[n]].min[2]) {
|
|
continue;
|
|
} else if (clip.max[0] > portals.portal[portals.portal_sort[n]].max[0]) {
|
|
continue;
|
|
} else if (clip.max[1] > portals.portal[portals.portal_sort[n]].max[1]) {
|
|
continue;
|
|
} else if (clip.max[2] > portals.portal[portals.portal_sort[n]].max[2]) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
glColor4f(portals.portal[portals.portal_sort[n]].fp_color_random[0],
|
|
portals.portal[portals.portal_sort[n]].fp_color_random[1],
|
|
portals.portal[portals.portal_sort[n]].fp_color_random[2], trans);
|
|
|
|
glBegin(GL_POLYGON);
|
|
|
|
for (p = 0; p < portals.portal[portals.portal_sort[n]].point_count; p++)
|
|
glVertex3fv(portals.portal[portals.portal_sort[n]].point[p].p);
|
|
|
|
glEnd();
|
|
}
|
|
} else {
|
|
for (n = 0; n < portals.portal_count; n++) {
|
|
if (portals.polygons == 2 && !portals.portal[n].hint) {
|
|
continue;
|
|
}
|
|
|
|
if (portals.clip) {
|
|
if (clip.min[0] < portals.portal[n].min[0]) {
|
|
continue;
|
|
} else if (clip.min[1] < portals.portal[n].min[1]) {
|
|
continue;
|
|
} else if (clip.min[2] < portals.portal[n].min[2]) {
|
|
continue;
|
|
} else if (clip.max[0] > portals.portal[n].max[0]) {
|
|
continue;
|
|
} else if (clip.max[1] > portals.portal[n].max[1]) {
|
|
continue;
|
|
} else if (clip.max[2] > portals.portal[n].max[2]) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
glColor4f(portals.portal[n].fp_color_random[0], portals.portal[n].fp_color_random[1],
|
|
portals.portal[n].fp_color_random[2], trans);
|
|
|
|
glBegin(GL_POLYGON);
|
|
|
|
for (p = 0; p < portals.portal[n].point_count; p++)
|
|
glVertex3fv(portals.portal[n].point[p].p);
|
|
|
|
glEnd();
|
|
}
|
|
}
|
|
}
|
|
|
|
void CPortalsDrawSolidOutline::render(RenderStateFlags state) const
|
|
{
|
|
for (unsigned int n = 0; n < portals.portal_count; n++) {
|
|
if (portals.lines == 2 && !portals.portal[n].hint) {
|
|
continue;
|
|
}
|
|
|
|
if (portals.clip) {
|
|
if (clip.min[0] < portals.portal[n].min[0]) {
|
|
continue;
|
|
}
|
|
if (clip.min[1] < portals.portal[n].min[1]) {
|
|
continue;
|
|
}
|
|
if (clip.min[2] < portals.portal[n].min[2]) {
|
|
continue;
|
|
}
|
|
if (clip.max[0] > portals.portal[n].max[0]) {
|
|
continue;
|
|
}
|
|
if (clip.max[1] > portals.portal[n].max[1]) {
|
|
continue;
|
|
}
|
|
if (clip.max[2] > portals.portal[n].max[2]) {
|
|
continue;
|
|
}
|
|
}
|
|
|
|
glBegin(GL_LINE_LOOP);
|
|
|
|
for (unsigned int p = 0; p < portals.portal[n].point_count; p++)
|
|
glVertex3fv(portals.portal[n].inner_point[p].p);
|
|
|
|
glEnd();
|
|
}
|
|
}
|