void TextureManager::DebugInfoRender(const float &fRatio, const PosQuat &pq)
{
Texture *pCurrent = 0;
//render currently selected texture for debug display
if (m_dwSelectedIndex < m_vTextures.size())
{
pCurrent = m_vTextures.at(m_dwSelectedIndex);
}
if (!pCurrent)
{
return;
}
glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
GLboolean bLightingWasOn = glIsEnabled(GL_LIGHTING);
if (bLightingWasOn)
{ //turn off lighting
glDisable(GL_LIGHTING);
}
GLboolean bTextureWasOn = glIsEnabled(GL_TEXTURE_2D);
if (!bTextureWasOn)
{ //turn textures on if it wasn't already on
glEnable(GL_TEXTURE_2D);
}
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
glBindTexture(GL_TEXTURE_2D, pCurrent->GetTexture());
glMultMatrixf(pq.quat.ToMatrix().m);
float fScale = 0.33f;
float fBorder = fScale * 1.05f;
float fBorderSize = fBorder - fScale;
glBegin(GL_QUADS);
glTexCoord2f(0.0f, 0.0f); glVertex3f(-fScale, -fScale, 0.0f);
glTexCoord2f(0.0f, 1.0f); glVertex3f(-fScale, fScale, 0.0f);
glTexCoord2f(1.0f, 1.0f); glVertex3f(fScale, fScale, 0.0f);
glTexCoord2f(1.0f, 0.0f); glVertex3f(fScale, -fScale, 0.0f);
glEnd();
glDisable(GL_TEXTURE_2D);
glBegin(GL_QUADS);
glColor3f(1.0f, 0.0f, 1.0f);
glNormal3f(0.0f, 0.0f, 1.0f);
glVertex3f(-fBorder, -fBorder, 0.0f);
glVertex3f(-fBorder, fBorder, 0.0f);
glVertex3f(-fBorder + fBorderSize, fBorder, 0.0f);
glVertex3f(-fBorder + fBorderSize, -fBorder, 0.0f);
glVertex3f(fBorder, -fBorder, 0.0f);
glVertex3f(fBorder, fBorder, 0.0f);
glVertex3f(fBorder - fBorderSize, fBorder, 0.0f);
glVertex3f(fBorder - fBorderSize, -fBorder, 0.0f);
glVertex3f(-fBorder, -fBorder, 0.0f);
glVertex3f(-fBorder, -fBorder + fBorderSize, 0.0f);
glVertex3f(fBorder, -fBorder + fBorderSize, 0.0f);
glVertex3f(fBorder, -fBorder, 0.0f);
glVertex3f(-fBorder, fBorder, 0.0f);
glVertex3f(-fBorder, fBorder - fBorderSize, 0.0f);
glVertex3f(fBorder, fBorder - fBorderSize, 0.0f);
glVertex3f(fBorder, fBorder, 0.0f);
glEnd();
glColor3f(1.0f, 1.0f, 1.0f);
//reset matrices so text is always in the correct spot
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(60.0, fRatio, 0.1, 50.0); //update this so we dont get crappy distortion
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
gluLookAt(0.0, 0.0, 1.75, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0);
size_t size = 50 + strlen(pCurrent->GetName());
char *pDetails = (char *)malloc(sizeof(char) * size);
memset(pDetails, 0, size);
sprintf_s(pDetails, size, "%dx%d, %u bytes, %s", pCurrent->GetSizeX(), pCurrent->GetSizeY(), pCurrent->GetSizeInBytes(), pCurrent->GetName());
glRasterPos2f(-fRatio, 0.97f);
for (const char *c = pDetails; *c != '\0'; c++)
{
glutBitmapCharacter(GLUT_BITMAP_8_BY_13, *c);
}
free(pDetails);
this->RenderHelpText(fRatio);
glEnable(GL_TEXTURE_2D);
if (!bTextureWasOn)
{ //disable textures if it wasn't on initially
glDisable(GL_TEXTURE_2D);
}
if (bLightingWasOn)
{ //if it was on, turn it back on!
glEnable(GL_LIGHTING);
}
}
