--- a/src/GLCompiler.cc Wed Mar 12 16:21:49 2014 +0200
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,405 +0,0 @@
-/*
- * LDForge: LDraw parts authoring CAD
- * Copyright (C) 2013, 2014 Santeri Piippo
- *
- * This program 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 3 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
- */
-
-#define GL_GLEXT_PROTOTYPES
-#include <GL/glu.h>
-#include <GL/glext.h>
-#include "GLCompiler.h"
-#include "LDObject.h"
-#include "Colors.h"
-#include "Document.h"
-#include "Misc.h"
-#include "GLRenderer.h"
-#include "Dialogs.h"
-
-cfg (String, gl_selectcolor, "#0080FF")
-
-struct GLErrorInfo
-{
- GLenum value;
- QString text;
-};
-
-static const GLErrorInfo g_GLErrors[] =
-{
- { GL_NO_ERROR, "No error" },
- { GL_INVALID_ENUM, "Unacceptable enumerator passed" },
- { GL_INVALID_VALUE, "Numeric argument out of range" },
- { GL_INVALID_OPERATION, "The operation is not allowed to be done in this state" },
- { GL_INVALID_FRAMEBUFFER_OPERATION, "Framebuffer object is not complete"},
- { GL_OUT_OF_MEMORY, "Out of memory" },
- { GL_STACK_UNDERFLOW, "The operation would have caused an underflow" },
- { GL_STACK_OVERFLOW, "The operation would have caused an overflow" },
-};
-
-#include <QTime>
-
-#define CLOCK_INIT QTime t0;
-
-#define CLOCK_START \
-{ \
- t0 = QTime::currentTime(); \
-}
-
-#define CLOCK_TIME(A) \
-{ \
- fprint (stderr, A ": %1ms\n", t0.msecsTo (QTime::currentTime())); \
-}
-
-#define DEBUG_PRINT(...) fprint (stdout, __VA_ARGS__)
-
-extern_cfg (Bool, gl_blackedges);
-extern_cfg (String, gl_bgcolor);
-static QList<short> g_warnedColors;
-static const QColor g_BFCFrontColor (40, 192, 40);
-static const QColor g_BFCBackColor (224, 40, 40);
-
-// =============================================================================
-//
-void checkGLError_private (const char* file, int line)
-{
- QString errmsg;
- GLenum errnum = glGetError();
-
- if (errnum == GL_NO_ERROR)
- return;
-
- for (const GLErrorInfo& err : g_GLErrors)
- {
- if (err.value == errnum)
- {
- errmsg = err.text;
- break;
- }
- }
-
- print ("OpenGL ERROR: at %1:%2: %3", basename (QString (file)), line, errmsg);
-}
-
-// =============================================================================
-//
-GLCompiler::GLCompiler()
-{
- needMerge();
- memset (m_vboSizes, 0, sizeof m_vboSizes);
-}
-
-// =============================================================================
-//
-void GLCompiler::initialize()
-{
- glGenBuffers (g_numVBOs, &m_vbo[0]);
- checkGLError();
-}
-
-// =============================================================================
-//
-GLCompiler::~GLCompiler()
-{
- glDeleteBuffers (g_numVBOs, &m_vbo[0]);
- checkGLError();
-}
-
-// =============================================================================
-//
-uint32 GLCompiler::colorToRGB (const QColor& color)
-{
- return
- (color.red() & 0xFF) << 0x00 |
- (color.green() & 0xFF) << 0x08 |
- (color.blue() & 0xFF) << 0x10 |
- (color.alpha() & 0xFF) << 0x18;
-}
-
-// =============================================================================
-//
-QColor GLCompiler::indexColorForID (int id) const
-{
- // Calculate a color based from this index. This method caters for
- // 16777216 objects. I don't think that will be exceeded anytime soon. :)
- int r = (id / 0x10000) % 0x100,
- g = (id / 0x100) % 0x100,
- b = id % 0x100;
-
- return QColor (r, g, b);
-}
-
-// =============================================================================
-//
-QColor GLCompiler::polygonColor (LDPolygon& poly, LDObject* topobj) const
-{
- QColor qcol;
-
- if (poly.color == maincolor)
- {
- if (topobj->color() == maincolor)
- qcol = GLRenderer::getMainColor();
- else
- qcol = getColor (topobj->color())->faceColor;
- }
- elif (poly.color == edgecolor)
- {
- qcol = luma (QColor (gl_bgcolor)) > 40 ? Qt::black : Qt::white;
- }
- else
- {
- LDColor* col = getColor (poly.color);
-
- if (col)
- qcol = col->faceColor;
- }
-
- if (qcol.isValid() == false)
- {
- // The color was unknown. Use main color to make the poly.object at least
- // not appear pitch-black.
- if (poly.num != 2 && poly.num != 5)
- qcol = GLRenderer::getMainColor();
- else
- qcol = Qt::black;
-
- // Warn about the unknown color, but only once.
- if (g_warnedColors.contains (poly.color) == false)
- {
- print ("Unknown color %1!\n", poly.color);
- g_warnedColors << poly.color;
- }
-
- return qcol;
- }
-
- if (topobj->isSelected())
- {
- // Brighten it up for the select list.
- QColor selcolor (gl_selectcolor);
- qcol.setRed ((qcol.red() + selcolor.red()) / 2);
- qcol.setGreen ((qcol.green() + selcolor.green()) / 2);
- qcol.setBlue ((qcol.blue() + selcolor.blue()) / 2);
- }
-
- return qcol;
-}
-
-// =============================================================================
-//
-void GLCompiler::needMerge()
-{
- for (int i = 0; i < countof (m_vboChanged); ++i)
- m_vboChanged[i] = true;
-}
-
-// =============================================================================
-//
-void GLCompiler::stageForCompilation (LDObject* obj)
-{
- m_staged << obj;
-}
-
-// =============================================================================
-//
-void GLCompiler::compileDocument (LDDocument* doc)
-{
- if (doc == null)
- return;
-
- for (LDObject* obj : doc->objects())
- compileObject (obj);
-}
-
-// =============================================================================
-//
-void GLCompiler::compileStaged()
-{
- removeDuplicates (m_staged);
-
- for (LDObject* obj : m_staged)
- compileObject (obj);
-
- m_staged.clear();
-}
-
-// =============================================================================
-//
-void GLCompiler::prepareVBO (int vbonum)
-{
- // Compile anything that still awaits it
- compileStaged();
-
- if (m_vboChanged[vbonum] == false)
- return;
-
- QVector<GLfloat> vbodata;
-
- for (auto it = m_objectInfo.begin(); it != m_objectInfo.end(); ++it)
- {
- if (it.key()->document() == getCurrentDocument())
- vbodata += it->data[vbonum];
- }
-
- glBindBuffer (GL_ARRAY_BUFFER, m_vbo[vbonum]);
- glBufferData (GL_ARRAY_BUFFER, vbodata.size() * sizeof(GLfloat), vbodata.constData(), GL_DYNAMIC_DRAW);
- glBindBuffer (GL_ARRAY_BUFFER, 0);
- checkGLError();
- m_vboChanged[vbonum] = false;
- m_vboSizes[vbonum] = vbodata.size();
-}
-
-// =============================================================================
-//
-void GLCompiler::dropObject (LDObject* obj)
-{
- auto it = m_objectInfo.find (obj);
-
- if (it != m_objectInfo.end())
- {
- m_objectInfo.erase (it);
- needMerge();
- }
-}
-
-// =============================================================================
-//
-void GLCompiler::compileObject (LDObject* obj)
-{
- print ("compiling #%1 (%2, %3)\n", obj->id(), obj->typeName(), obj->origin());
- ObjectVBOInfo info;
- dropObject (obj);
- compileSubObject (obj, obj, &info);
- m_objectInfo[obj] = info;
- needMerge();
- print ("#%1 compiled.\n", obj->id());
-}
-
-// =============================================================================
-//
-void GLCompiler::compilePolygon (LDPolygon& poly, LDObject* topobj, ObjectVBOInfo* objinfo)
-{
- EVBOSurface surface;
- int numverts;
-
- switch (poly.num)
- {
- case 3: surface = VBOSF_Triangles; numverts = 3; break;
- case 4: surface = VBOSF_Quads; numverts = 4; break;
- case 2: surface = VBOSF_Lines; numverts = 2; break;
- case 5: surface = VBOSF_CondLines; numverts = 2; break;
-
- default:
- print ("OMGWTFBBQ weird polygon with number %1 (topobj: #%2, %3), origin: %4",
- (int) poly.num, topobj->id(), topobj->typeName(), poly.origin);
- assert (false);
- }
-
- for (int complement = 0; complement < VBOCM_NumComplements; ++complement)
- {
- const int vbonum = vboNumber (surface, (EVBOComplement) complement);
- QVector<GLfloat>& vbodata = objinfo->data[vbonum];
- const QColor normalColor = polygonColor (poly, topobj);
- const QColor pickColor = indexColorForID (topobj->id());
-
- for (int vert = 0; vert < numverts; ++vert)
- {
- switch ((EVBOComplement) complement)
- {
- case VBOCM_Surfaces:
- {
- // Write coordinates. Apparently Z must be flipped too?
- vbodata << poly.vertices[vert].x()
- << -poly.vertices[vert].y()
- << -poly.vertices[vert].z();
- break;
- }
-
- case VBOCM_NormalColors:
- {
- writeColor (vbodata, normalColor);
- break;
- }
-
- case VBOCM_PickColors:
- {
- writeColor (vbodata, pickColor);
- break;
- }
-
- case VBOCM_BFCFrontColors:
- {
- writeColor (vbodata, g_BFCFrontColor);
- break;
- }
-
- case VBOCM_BFCBackColors:
- {
- writeColor (vbodata, g_BFCBackColor);
- break;
- }
-
- case VBOCM_NumComplements:
- break;
- }
- }
- }
-}
-
-// =============================================================================
-//
-void GLCompiler::compileSubObject (LDObject* obj, LDObject* topobj, ObjectVBOInfo* objinfo)
-{
- switch (obj->type())
- {
- // Note: We cannot split quads into triangles here, it would mess up the
- // wireframe view. Quads must go into separate vbos.
- case LDObject::ETriangle:
- case LDObject::EQuad:
- case LDObject::ELine:
- case LDObject::ECondLine:
- {
- LDPolygon* poly = obj->getPolygon();
- poly->id = topobj->id();
- compilePolygon (*poly, topobj, objinfo);
- delete poly;
- break;
- }
-
- case LDObject::ESubfile:
- {
- LDSubfile* ref = static_cast<LDSubfile*> (obj);
- auto data = ref->inlinePolygons();
-
- for (LDPolygon& poly : data)
- {
- poly.id = topobj->id();
- compilePolygon (poly, topobj, objinfo);
- }
- break;
- }
-
- default:
- break;
- }
-}
-
-// =============================================================================
-//
-void GLCompiler::writeColor (QVector<GLfloat>& array, const QColor& color)
-{
- array << ((float) color.red()) / 255.0f
- << ((float) color.green()) / 255.0f
- << ((float) color.blue()) / 255.0f
- << ((float) color.alpha()) / 255.0f;
-}