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The GtkRadiant sources as originally released under the GPL license.

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This commit is contained in:
Travis Bradshaw
2012-01-31 15:20:35 -06:00
commit 0991a5ce8b
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318
contrib/bkgrnd2d/bkgrnd2d.cpp Normal file
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/*
Copyright (C) 2003 Reed Mideke.
This file is part of GtkRadiant.
GtkRadiant is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
GtkRadiant is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GtkRadiant; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
//
// bkgrnd2d Plugin
//
// Code by reyalP aka Reed Mideke
//
// Based on various other plugins
//
#include "bkgrnd2d.h"
CBackgroundRender render;
CBackgroundImage backgroundXY(XY),backgroundXZ(XZ),backgroundYZ(YZ);
CBackgroundRender::CBackgroundRender()
{
refCount = 1;
}
CBackgroundRender::~CBackgroundRender()
{
}
void CBackgroundRender::Register()
{
g_QglTable.m_pfnHookGL2DWindow( this );
}
void CBackgroundRender::Draw2D( VIEWTYPE vt )
{
switch(vt)
{
case XY:
backgroundXY.Render();
break;
case XZ:
backgroundXZ.Render();
break;
case YZ:
backgroundYZ.Render();
break;
}
}
CBackgroundImage::CBackgroundImage(VIEWTYPE vt)
{
m_tex = NULL;
m_alpha = 0.5;
// TODO, sensible defaults ? Or not show until we have extents ?
m_xmin = m_ymin = 0.0f;
m_xmax = m_ymax = 0.0f;
m_bActive = false;
m_vt = vt;
switch(m_vt)
{
case XY:
m_ix = 0;
m_iy = 1;
break;
case XZ:
m_ix = 0;
m_iy = 2;
break;
case YZ:
m_ix = 1;
m_iy = 2;
break;
}
}
/*
* should cleanup, but I don't think we can be sure it happens before our
* interfaces are gone
CBackgroundImage::~CBackgroundImage()
{
}
*/
void CBackgroundImage::Cleanup()
{
if(m_tex) {
g_QglTable.m_pfn_qglDeleteTextures(1,&m_tex->texture_number);
g_free(m_tex);
m_tex = NULL;
}
}
void CBackgroundImage::Render()
{
if (!m_bActive || !Valid())
return;
g_QglTable.m_pfn_qglPushAttrib(GL_ALL_ATTRIB_BITS);
g_QglTable.m_pfn_qglEnable(GL_TEXTURE_2D);
g_QglTable.m_pfn_qglEnable(GL_BLEND);
g_QglTable.m_pfn_qglBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
g_QglTable.m_pfn_qglTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
g_QglTable.m_pfn_qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
g_QglTable.m_pfn_qglTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
g_QglTable.m_pfn_qglPolygonMode(GL_FRONT,GL_FILL);
// TODO, just so we can tell if we end up going the wrong way
// g_QglTable.m_pfn_qglPolygonMode(GL_BACK,GL_LINE);
// TODO any other state we should not assume ?
g_QglTable.m_pfn_qglBindTexture(GL_TEXTURE_2D, m_tex->texture_number);
g_QglTable.m_pfn_qglBegin(GL_QUADS);
g_QglTable.m_pfn_qglColor4f(1.0,1.0,1.0,m_alpha);
g_QglTable.m_pfn_qglTexCoord2f(0.0,1.0);
g_QglTable.m_pfn_qglVertex2f(m_xmin,m_ymin);
g_QglTable.m_pfn_qglTexCoord2f(1.0,1.0);
g_QglTable.m_pfn_qglVertex2f(m_xmax,m_ymin);
g_QglTable.m_pfn_qglTexCoord2f(1.0,0.0);
g_QglTable.m_pfn_qglVertex2f(m_xmax,m_ymax);
g_QglTable.m_pfn_qglTexCoord2f(0.0,0.0);
g_QglTable.m_pfn_qglVertex2f(m_xmin,m_ymax);
g_QglTable.m_pfn_qglEnd();
g_QglTable.m_pfn_qglBindTexture(GL_TEXTURE_2D, 0);
g_QglTable.m_pfn_qglPopAttrib();
}
bool CBackgroundImage::Load(const char *filename)
{
qtexture_t *newtex;
unsigned char *image = NULL; // gets allocated with what ? g_malloc
int width = 0, height = 0;
g_FuncTable.m_pfnLoadImage(filename,&image,&width,&height);
if(!image) {
Syn_Printf(MSG_WARN "load %s failed\n",filename);
return false;
}
// just in case we want to build for an old version
// http://zerowing.idsoftware.com/bugzilla/show_bug.cgi?id=900
#ifdef BKGRND2D_JPG_WORKAROUND
if ( strlen(filename) > 4 && !strcmp(".jpg",filename + strlen(filename) - 4)) {
Syn_Printf(MSG_PREFIX ".jpg workaround, clearing alpha channel\n");
int size = width*height*4;
int i;
for (i = 3; i < size; i+=4) {
image[i] = 255;
}
}
#endif
//TODO bug for stored texture size
//TODO whose gl context are we in, anyway ?
newtex = g_FuncTable.m_pfnLoadTextureRGBA(image,width,height);
g_free(image);
if(!newtex) {
Syn_Printf(MSG_WARN "image to texture failed\n");
return false;
}
Cleanup();
m_tex = newtex;
g_FuncTable.m_pfnSysUpdateWindows(W_XY);
return true;
}
bool CBackgroundImage::SetExtentsMM()
{
entity_s *worldentity;
const char *val;
int xmin = 0, ymin = 0, xmax = 0, ymax = 0;
worldentity = (entity_s *)g_FuncTable.m_pfnGetEntityHandle(0);
if(!worldentity) {
Syn_Printf(MSG_WARN "SetExtentsMM worldspawn not found\n");
return false;
}
//TODO val is not NULL even if key does not exist
val = g_EntityTable.m_pfnValueForKey(worldentity,"mapcoordsmins");
if(!val || !val[0]) {
Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmins not found\n");
return false;
}
// we could be more robust
// note contortions due to splashs strange idea of min and max
if(sscanf(val, "%d %d",&xmin,&ymax) != 2)
{
Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmins malformed\n");
return false;
}
val = g_EntityTable.m_pfnValueForKey(worldentity,"mapcoordsmaxs");
if(!val || !val[0]) {
Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmaxs not found\n");
return false;
}
if(sscanf(val, "%d %d",&xmax,&ymin) != 2)
{
Syn_Printf(MSG_WARN "SetExtentsMM mapcoordsmaxs malformed\n");
return false;
}
//might do sanity check before we commit
m_xmin = (float)xmin;
m_ymin = (float)ymin;
m_xmax = (float)xmax;
m_ymax = (float)ymax;
g_FuncTable.m_pfnSysUpdateWindows(W_XY);
return true;
}
// TODO, this should just be exported from core
// ripped directly from radiant/select.cpp:Select_GetBounds
//
static bool get_selection_bounds (vec3_t mins, vec3_t maxs)
{
brush_t *b;
int i;
brush_t *selected_brushes = g_DataTable.m_pfnSelectedBrushes();
//TODO should never happen
if(!selected_brushes) {
Sys_Printf (MSG_PREFIX "selected_brushes = NULL\n");
return false;
}
// this should mean no selection
if(selected_brushes == selected_brushes->next) {
Sys_Printf (MSG_PREFIX "nothing selected\n");
return false;
}
for (i=0 ; i<3 ; i++)
{
mins[i] = 99999;
maxs[i] = -99999;
}
for (b=selected_brushes->next ; b != selected_brushes ; b=b->next)
{
if (b->owner->eclass->fixedsize)
{
for (i=0 ; i<3 ; i++)
{
if (b->owner->origin[i] < mins[i])
mins[i] = b->owner->origin[i];
if (b->owner->origin[i] > maxs[i])
maxs[i] = b->owner->origin[i];
}
}
else
{
for (i=0 ; i<3 ; i++)
{
if (b->mins[i] < mins[i])
mins[i] = b->mins[i];
if (b->maxs[i] > maxs[i])
maxs[i] = b->maxs[i];
}
}
}
return true;
}
bool CBackgroundImage::SetExtentsSel()
{
vec3_t mins,maxs;
if(!get_selection_bounds(mins,maxs))
return false;
if(((int)mins[m_ix] == (int)maxs[m_ix]) ||
((int)mins[m_iy] == (int)maxs[m_iy])) {
Syn_Printf(MSG_PREFIX "tiny selection\n");
return false;
}
m_xmin = mins[m_ix];
m_ymin = mins[m_iy];
m_xmax = maxs[m_ix];
m_ymax = maxs[m_iy];
g_FuncTable.m_pfnSysUpdateWindows(W_XY);
return true;
}