mirror of
https://github.com/UberGames/GtkRadiant.git
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29ac8a44c6
git-svn-id: svn://svn.icculus.org/gtkradiant/GtkRadiant/trunk@22 8a3a26a2-13c4-0310-b231-cf6edde360e5
318 lines
7.1 KiB
C++
318 lines
7.1 KiB
C++
/*
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Copyright (C) 2003 Reed Mideke.
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This file is part of GtkRadiant.
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GtkRadiant is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GtkRadiant 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GtkRadiant; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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//
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// bkgrnd2d Plugin
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//
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// Code by reyalP aka Reed Mideke
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//
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// Based on various other plugins
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//
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#include "bkgrnd2d.h"
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CBackgroundRender render;
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CBackgroundImage backgroundXY(XY),backgroundXZ(XZ),backgroundYZ(YZ);
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CBackgroundRender::CBackgroundRender()
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{
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refCount = 1;
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}
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CBackgroundRender::~CBackgroundRender()
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{
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}
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void CBackgroundRender::Register()
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{
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g_QglTable.m_pfnHookGL2DWindow( this );
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}
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void CBackgroundRender::Draw2D( VIEWTYPE vt )
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{
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switch(vt)
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{
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case XY:
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backgroundXY.Render();
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break;
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case XZ:
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backgroundXZ.Render();
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break;
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case YZ:
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backgroundYZ.Render();
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break;
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}
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}
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CBackgroundImage::CBackgroundImage(VIEWTYPE vt)
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{
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m_tex = NULL;
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m_alpha = 0.5;
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// TODO, sensible defaults ? Or not show until we have extents ?
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m_xmin = m_ymin = 0.0f;
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m_xmax = m_ymax = 0.0f;
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m_bActive = false;
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m_vt = vt;
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switch(m_vt)
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{
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case XY:
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m_ix = 0;
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m_iy = 1;
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break;
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case XZ:
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m_ix = 0;
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m_iy = 2;
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break;
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case YZ:
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m_ix = 1;
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m_iy = 2;
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break;
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}
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}
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/*
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* should cleanup, but I don't think we can be sure it happens before our
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* interfaces are gone
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CBackgroundImage::~CBackgroundImage()
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{
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}
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*/
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void CBackgroundImage::Cleanup()
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{
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if(m_tex) {
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g_QglTable.m_pfn_qglDeleteTextures(1,&m_tex->texture_number);
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g_free(m_tex);
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m_tex = NULL;
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}
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}
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void CBackgroundImage::Render()
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{
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if (!m_bActive || !Valid())
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return;
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g_QglTable.m_pfn_qglPushAttrib(GL_ALL_ATTRIB_BITS);
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g_QglTable.m_pfn_qglEnable(GL_TEXTURE_2D);
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g_QglTable.m_pfn_qglEnable(GL_BLEND);
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g_QglTable.m_pfn_qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
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g_QglTable.m_pfn_qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
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g_QglTable.m_pfn_qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
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g_QglTable.m_pfn_qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
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g_QglTable.m_pfn_qglPolygonMode(GL_FRONT,GL_FILL);
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// TODO, just so we can tell if we end up going the wrong way
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// g_QglTable.m_pfn_qglPolygonMode(GL_BACK,GL_LINE);
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// TODO any other state we should not assume ?
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g_QglTable.m_pfn_qglBindTexture(GL_TEXTURE_2D, m_tex->texture_number);
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g_QglTable.m_pfn_qglBegin(GL_QUADS);
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g_QglTable.m_pfn_qglColor4f(1.0,1.0,1.0,m_alpha);
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g_QglTable.m_pfn_qglTexCoord2f(0.0,1.0);
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g_QglTable.m_pfn_qglVertex2f(m_xmin,m_ymin);
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g_QglTable.m_pfn_qglTexCoord2f(1.0,1.0);
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g_QglTable.m_pfn_qglVertex2f(m_xmax,m_ymin);
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g_QglTable.m_pfn_qglTexCoord2f(1.0,0.0);
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g_QglTable.m_pfn_qglVertex2f(m_xmax,m_ymax);
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g_QglTable.m_pfn_qglTexCoord2f(0.0,0.0);
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g_QglTable.m_pfn_qglVertex2f(m_xmin,m_ymax);
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g_QglTable.m_pfn_qglEnd();
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g_QglTable.m_pfn_qglBindTexture(GL_TEXTURE_2D, 0);
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g_QglTable.m_pfn_qglPopAttrib();
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}
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bool CBackgroundImage::Load(const char *filename)
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{
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qtexture_t *newtex;
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unsigned char *image = NULL; // gets allocated with what ? g_malloc
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int width = 0, height = 0;
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g_FuncTable.m_pfnLoadImage(filename,&image,&width,&height);
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if(!image) {
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Syn_Printf(MSG_WARN "load %s failed\n",filename);
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return false;
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}
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// just in case we want to build for an old version
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// http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=900
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#ifdef BKGRND2D_JPG_WORKAROUND
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if ( strlen(filename) > 4 && !strcmp(".jpg",filename + strlen(filename) - 4)) {
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Syn_Printf(MSG_PREFIX ".jpg workaround, clearing alpha channel\n");
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int size = width*height*4;
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int i;
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for (i = 3; i < size; i+=4) {
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image[i] = 255;
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}
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}
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#endif
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//TODO bug for stored texture size
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//TODO whose gl context are we in, anyway ?
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newtex = g_FuncTable.m_pfnLoadTextureRGBA(image,width,height);
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g_free(image);
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if(!newtex) {
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Syn_Printf(MSG_WARN "image to texture failed\n");
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return false;
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}
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Cleanup();
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m_tex = newtex;
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g_FuncTable.m_pfnSysUpdateWindows(W_XY);
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return true;
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}
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bool CBackgroundImage::SetExtentsMM()
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{
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entity_s *worldentity;
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const char *val;
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int xmin = 0, ymin = 0, xmax = 0, ymax = 0;
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worldentity = (entity_s *)g_FuncTable.m_pfnGetEntityHandle(0);
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if(!worldentity) {
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Syn_Printf(MSG_WARN "SetExtentsMM worldspawn not found\n");
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return false;
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}
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//TODO val is not NULL even if key does not exist
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val = g_EntityTable.m_pfnValueForKey(worldentity,"mapcoordsmins");
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if(!val || !val[0]) {
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Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmins not found\n");
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return false;
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}
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// we could be more robust
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// note contortions due to splashs strange idea of min and max
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if(sscanf(val, "%d %d",&xmin,&ymax) != 2)
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{
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Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmins malformed\n");
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return false;
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}
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val = g_EntityTable.m_pfnValueForKey(worldentity,"mapcoordsmaxs");
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if(!val || !val[0]) {
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Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmaxs not found\n");
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return false;
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}
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if(sscanf(val, "%d %d",&xmax,&ymin) != 2)
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{
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Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmaxs malformed\n");
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return false;
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}
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//might do sanity check before we commit
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m_xmin = (float)xmin;
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m_ymin = (float)ymin;
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m_xmax = (float)xmax;
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m_ymax = (float)ymax;
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g_FuncTable.m_pfnSysUpdateWindows(W_XY);
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return true;
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}
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// TODO, this should just be exported from core
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// ripped directly from radiant/select.cpp:Select_GetBounds
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//
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static bool get_selection_bounds (vec3_t mins, vec3_t maxs)
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{
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brush_t *b;
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int i;
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brush_t *selected_brushes = g_DataTable.m_pfnSelectedBrushes();
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//TODO should never happen
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if(!selected_brushes) {
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Sys_Printf (MSG_PREFIX "selected_brushes = NULL\n");
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return false;
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}
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// this should mean no selection
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if(selected_brushes == selected_brushes->next) {
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Sys_Printf (MSG_PREFIX "nothing selected\n");
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return false;
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}
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for (i=0 ; i<3 ; i++)
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{
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mins[i] = 99999;
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maxs[i] = -99999;
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}
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for (b=selected_brushes->next ; b != selected_brushes ; b=b->next)
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{
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if (b->owner->eclass->fixedsize)
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{
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for (i=0 ; i<3 ; i++)
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{
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if (b->owner->origin[i] < mins[i])
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mins[i] = b->owner->origin[i];
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if (b->owner->origin[i] > maxs[i])
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maxs[i] = b->owner->origin[i];
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}
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}
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else
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{
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for (i=0 ; i<3 ; i++)
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{
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if (b->mins[i] < mins[i])
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mins[i] = b->mins[i];
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if (b->maxs[i] > maxs[i])
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maxs[i] = b->maxs[i];
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}
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}
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}
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return true;
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}
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bool CBackgroundImage::SetExtentsSel()
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{
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vec3_t mins,maxs;
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if(!get_selection_bounds(mins,maxs))
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return false;
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if(((int)mins[m_ix] == (int)maxs[m_ix]) ||
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((int)mins[m_iy] == (int)maxs[m_iy])) {
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Syn_Printf(MSG_PREFIX "tiny selection\n");
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return false;
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}
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m_xmin = mins[m_ix];
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m_ymin = mins[m_iy];
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m_xmax = maxs[m_ix];
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m_ymax = maxs[m_iy];
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g_FuncTable.m_pfnSysUpdateWindows(W_XY);
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return true;
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}
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