C++ CColor::GetBlue方法代码示例

// The raytracing process
void CRenderingCore::RenderPixelBuffer()
{
    /**************************************************************
    STRATEGY:
    1. Run nested loop for the entire screen.
    **************************************************************/
    m_pcamCurrent->Describe();
    
    // 1.
    for (int y = 0; y < m_iPixelY; y++)
    {
		for (int x = 0; x < m_iPixelX; x++)
		{
			CColor colToUse;
			
            /****************************************************************
			NESTED LOOP LOGIC:
			Calculate the X fraction
			Get the pixel ray for this screen coordinate fromt the 
			camera
			Get the color for this ray.
			Plot the pixel with this color.
			****************************************************************/

			colToUse = Sample ((float)x, (float)y, 1);

			m_ppPixelBuffer[0][x][y] = ((float) (int)(colToUse.GetRed()   * 1000.0f)) / 1000.0f;
			m_ppPixelBuffer[1][x][y] = ((float) (int)(colToUse.GetGreen() * 1000.0f)) / 1000.0f;
			m_ppPixelBuffer[2][x][y] = ((float) (int)(colToUse.GetBlue()  * 1000.0f)) / 1000.0f;

		}
    }
}

 void CQTOpenGLUserFunctions::SetColor(const CColor& c_color) {
    const GLfloat pfColor[]     = {
       c_color.GetRed()   / 255.0f,
       c_color.GetGreen() / 255.0f,
       c_color.GetBlue()  / 255.0f
    };
    glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, DEFAULT_SPECULAR);
    glMaterialfv(GL_FRONT_AND_BACK, GL_SHININESS, DEFAULT_SHININESS);
    glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, DEFAULT_EMISSION);
    glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, pfColor);
 }

buzzvm_state CBuzzController::Register(const std::string& str_key,
                                       const CColor& c_color) {
   buzzvm_pushs(m_tBuzzVM, buzzvm_string_register(m_tBuzzVM, str_key.c_str(), 1));
   buzzvm_pusht(m_tBuzzVM);
   buzzobj_t tColorTable = buzzvm_stack_at(m_tBuzzVM, 1);
   buzzvm_gstore(m_tBuzzVM);
   TablePut(tColorTable, "red", c_color.GetRed());
   TablePut(tColorTable, "green", c_color.GetGreen());
   TablePut(tColorTable, "blue", c_color.GetBlue());
   return m_tBuzzVM->state;
}

buzzvm_state CBuzzController::TablePut(buzzobj_t t_table,
                                       SInt32 n_idx,
                                       const CColor& c_color) {
   buzzvm_push(m_tBuzzVM, t_table);
   buzzvm_pushi(m_tBuzzVM, n_idx);
   buzzvm_pusht(m_tBuzzVM);
   buzzobj_t tColorTable = buzzvm_stack_at(m_tBuzzVM, 1);
   buzzvm_tput(m_tBuzzVM);
   TablePut(tColorTable, "red", c_color.GetRed());
   TablePut(tColorTable, "green", c_color.GetGreen());
   TablePut(tColorTable, "blue", c_color.GetBlue());
   return m_tBuzzVM->state;   
}

   void CQTOpenGLUserFunctions::DrawPoint(const CVector3& c_position,
                                          const CColor& c_color,
                                          const Real f_point_diameter) {
      glDisable(GL_LIGHTING);
      glColor3ub(c_color.GetRed(),
                 c_color.GetGreen(),
                 c_color.GetBlue());
      glPointSize(f_point_diameter);
      glBegin(GL_POINTS);
      glVertex3f(c_position.GetX(), c_position.GetY(), c_position.GetZ());
      glEnd();
      glPointSize(1.0);
      glEnable(GL_LIGHTING);

   }

 void CQTOpenGLUserFunctions::DrawText(const std::string& str_text,
                                       const CVector3& c_center_offset,
                                       const CColor& c_color) {
    glDisable(GL_LIGHTING);
    glDisable(GL_CULL_FACE);
    glColor3ub(c_color.GetRed(),
               c_color.GetGreen(),
               c_color.GetBlue());
    GetOpenGLWidget().renderText(c_center_offset.GetX(),
                                 c_center_offset.GetY(),
                                 c_center_offset.GetZ(),
                                 str_text.c_str());
    glEnable(GL_CULL_FACE);
    glEnable(GL_LIGHTING);
 }

   void CQTOpenGLUserFunctions::DrawTriangle(const CVector3& c_center_offset,
                                             const CColor& c_color,
                                             const bool b_fill,
                                             const CQuaternion& c_orientation,
                                             Real f_base,
                                             Real f_height) {

	    glDisable(GL_LIGHTING);
	    glDisable(GL_CULL_FACE);

	    glColor3ub(c_color.GetRed(),
                 c_color.GetGreen(),
                 c_color.GetBlue());

      if(b_fill) {
         glBegin(GL_POLYGON);
      }
      else {
         glBegin(GL_LINE_LOOP);
      }
      CVector3 cNormalDirection(0.0f, 0.0f, 1.0f);
      cNormalDirection.Rotate(c_orientation);
      glNormal3f(cNormalDirection.GetX(),
                 cNormalDirection.GetY(),
                 cNormalDirection.GetZ());

      CVector3 cVertex(f_height * 0.5f, 0.0f, 0.0f);
      cVertex.Rotate(c_orientation);
      glVertex3f(cVertex.GetX() + c_center_offset.GetX(),
                 cVertex.GetY() + c_center_offset.GetY(),
                 cVertex.GetZ() + c_center_offset.GetZ());

      cVertex.Set(-f_height * 0.5f, f_base * 0.5f, 0.0f);
      cVertex.Rotate(c_orientation);
      glVertex3f(cVertex.GetX() + c_center_offset.GetX(),
                 cVertex.GetY() + c_center_offset.GetY(),
                 cVertex.GetZ() + c_center_offset.GetZ());

      cVertex.Set(-f_height * 0.5f, -f_base * 0.5f, 0.0f);
      cVertex.Rotate(c_orientation);
      glVertex3f(cVertex.GetX() + c_center_offset.GetX(),
                 cVertex.GetY() + c_center_offset.GetY(),
                 cVertex.GetZ() + c_center_offset.GetZ());
      glEnd();

      glEnable(GL_CULL_FACE);
      glEnable(GL_LIGHTING);
   }

   void CQTOpenGLUserFunctions::DrawCircle(Real f_radius,
                                           const CVector3& c_center_offset,
                                           const CColor& c_color,
                                           const bool b_fill,
                                           const CQuaternion& c_orientation,
                                           GLuint un_vertices) {

	    glDisable(GL_LIGHTING);
	    glDisable(GL_CULL_FACE);

	    glColor3ub(c_color.GetRed(),
                 c_color.GetGreen(),
                 c_color.GetBlue());

	    CVector3 cVertex(f_radius, 0.0f, 0.0f);
	    CRadians cAngle(CRadians::TWO_PI / un_vertices);

      if(b_fill) {
         glBegin(GL_POLYGON);
      }
      else {
         glBegin(GL_LINE_LOOP);
      }
      CVector3 cNormalDirection(0.0f, 0.0f, 1.0f);
      cNormalDirection.Rotate(c_orientation);
      glNormal3f(cNormalDirection.GetX(),
                 cNormalDirection.GetY(),
                 cNormalDirection.GetZ());

      /* Compute the quaternion defining the rotation of the vertices used to draw the circle. */
      CQuaternion cVertexRotation;
      CVector3 cVertexRotationAxis(0.0f, 0.0f, 1.0f);
      cVertexRotationAxis.Rotate(c_orientation);
      cVertexRotation.FromAngleAxis(cAngle, cVertexRotationAxis);

	    cVertex.Rotate(c_orientation);
      for(GLuint i = 0; i <= un_vertices; i++) {
         glVertex3f(cVertex.GetX() + c_center_offset.GetX(),
                    cVertex.GetY() + c_center_offset.GetY(),
                    cVertex.GetZ() + c_center_offset.GetZ());
         cVertex.Rotate(cVertexRotation);
      }
      glEnd();

      glEnable(GL_CULL_FACE);
      glEnable(GL_LIGHTING);
   }

bool CTexture::FillTextureWithColor (unsigned int width, unsigned int height, const CColor& color)
{
  if (m_Texture==NULL)
  {
    LOGGER->AddNewLog(ELL_ERROR,"CTexture::FillTextureWithColor-> m_Texture no ha sido creado aun ");
    return false;
  }

  HRESULT hr;
  D3DLOCKED_RECT lock;
  hr=m_Texture->LockRect(0, &lock, NULL, D3DLOCK_DISCARD);
  if(hr==D3D_OK)
  {
    uint8 *pTxtBuffer; // Bitmap buffer, texture buffer
    pTxtBuffer = (uint8*)lock.pBits;

		
    uint32 j = 0;
    for( uint32 cont = 0; cont< width * height; cont++)
    {
      //BLUE
      pTxtBuffer[cont*4 + 0] = (uint8)(color.GetBlue()*255);
      //GREEN
      pTxtBuffer[cont*4 + 1] = (uint8)(color.GetGreen()*255);
      //RED
      pTxtBuffer[cont*4 + 2] = (uint8)(color.GetRed()*255);
      //ALPHA
      pTxtBuffer[cont*4 + 3] = (uint8)(color.GetAlpha()*255);
    }
    hr=m_Texture->UnlockRect(0);
  }
  else
  {
    LOGGER->AddNewLog(ELL_ERROR,"CTexture::FillTextureWithColor->Error en la llamada lockRect");
    return false;
  }

	m_Width	= width;
	m_Height	= height;

  return true;
}

   void CQTOpenGLUserFunctions::DrawSegment(const CVector3& c_end_point,
                                            const CVector3& c_start_point,
                                            const CColor& c_segment_color,
                                            const Real& f_line_width,
                                            bool b_draw_end_point,
                                            bool b_draw_start_point,
                                            const CColor& c_end_point_color,
                                            const CColor& c_start_point_color) {

      /* Draw the segment */

      glDisable(GL_LIGHTING);
      glColor3ub(c_segment_color.GetRed(),
                 c_segment_color.GetGreen(),
                 c_segment_color.GetBlue());

      glEnable (GL_LINE_SMOOTH);
      glLineWidth(f_line_width);

      glBegin(GL_LINES);
      glVertex3f(c_start_point.GetX(),
                 c_start_point.GetY(),
                 c_start_point.GetZ() );
      glVertex3f(c_end_point.GetX(),
                 c_end_point.GetY(),
                 c_end_point.GetZ() );
      glEnd();

      /* Draw the end and start points if necessary */

      if(b_draw_end_point) {
         DrawPoint(c_end_point, c_end_point_color, 5.0);
      }

      if(b_draw_start_point) {
         DrawPoint(c_start_point, c_start_point_color, 5.0);
      }

      glPointSize(1.0);
      glEnable(GL_LIGHTING);
   }

 virtual void SaveAsImage(const std::string& str_path) {
    fipImage cImage(FIT_BITMAP, m_unPixelsPerMeter * m_cHalfArenaSize.GetX()*2, m_unPixelsPerMeter * m_cHalfArenaSize.GetY()*2, 24);
    Real fFactor = 1.0f / static_cast<Real>(m_unPixelsPerMeter);
    CVector2 cFloorPos;
    CColor cARGoSPixel;
    RGBQUAD tFIPPixel;
    for(UInt32 y = 0; y < cImage.getHeight(); ++y) {
       for(UInt32 x = 0; x < cImage.getWidth(); ++x) {
          cFloorPos.Set(x * fFactor, y * fFactor);
          cFloorPos -= m_cHalfArenaSize;
          cARGoSPixel = m_cLoopFunctions.GetFloorColor(cFloorPos);
          tFIPPixel.rgbRed = cARGoSPixel.GetRed();
          tFIPPixel.rgbGreen = cARGoSPixel.GetGreen();
          tFIPPixel.rgbBlue = cARGoSPixel.GetBlue();
          cImage.setPixelColor(x, y, &tFIPPixel);
       }
    }
    if(!cImage.save(str_path.c_str())) {
       THROW_ARGOSEXCEPTION("Cannot save image \"" << str_path << "\" for floor entity.");
    }
 }

 void CQTOpenGLUserFunctions::DrawText(const CVector3& c_position,
                                       const std::string& str_text,
                                       const CColor& c_color) {
    /* Save attributes */
    glPushAttrib(GL_ENABLE_BIT);
    /* Disable lighting to make text color unaffected by light */
    glDisable(GL_LIGHTING);
    /* Disable culling to make text visibile from any angle */
    glDisable(GL_CULL_FACE);
    /* Set color */
    glColor3ub(c_color.GetRed(),
               c_color.GetGreen(),
               c_color.GetBlue());
    GetMainWindow().
       GetOpenGLWidget().
       renderText(c_position.GetX(),
                  c_position.GetY(),
                  c_position.GetZ(),
                  str_text.c_str());
    /* Restore saved attributes */
    glPopAttrib();
 }

void DX9SpriteBatch::Draw(
	ITextureBase *Texture2D, CRectangle &PositionInTexture, 
	Vector2I &Origin, Vector2F &Position, 
	float Rotation, Vector2F &Scale, CColor &Color, 
	float ZOrder, eSpriteEffects SpriteEffect )
{
	CDX9Texture *tex = dynamic_cast<CDX9Texture *>(Texture2D);
	RECT src;
	src.left = PositionInTexture.Left();
	src.right = PositionInTexture.Right();
	src.top = PositionInTexture.Top();
	src.bottom = PositionInTexture.Bottom();
	D3DXVECTOR2 center(static_cast<float>(Origin.x), static_cast<float>(Origin.y));
	D3DXVECTOR2 pos(Position.x - Origin.x, Position.y - Origin.y);

	D3DXMATRIX transform;
	DXCheck(D3DXMatrixTransformation2D(&transform, NULL, NULL, &D3DXVECTOR2(Scale.x, Scale.y), &center, Rotation, &pos));

	if (SUCCEEDED(DXCheck(m_D3DSprite->SetTransform(&transform))))
	{
		DXCheck(m_D3DSprite->Draw( tex->GetDxTexture(), &src, NULL, NULL,
				D3DCOLOR_RGBA(Color.GetRed(), Color.GetGreen(), Color.GetBlue(), Color.GetAlpha()) ));
	}	
}

   void CQTOpenGLUserFunctions::DrawPolygon(const std::vector<CVector3>& vec_points,
                                            const CColor& c_color) {
      if (vec_points.size() > 2)
      {
         glDisable(GL_LIGHTING);
         glDisable(GL_CULL_FACE);

         glColor3ub(c_color.GetRed(),
                    c_color.GetGreen(),
                    c_color.GetBlue());

         glBegin(GL_POLYGON);
         for (UInt32 i = 0; i < vec_points.size(); ++i)
         {
            glVertex3f(vec_points[i].GetX(),
                       vec_points[i].GetY(),
                       vec_points[i].GetZ());
         }
         glEnd();

         glEnable(GL_CULL_FACE);
         glEnable(GL_LIGHTING);
      }
   }

   void CQTOpenGLUserFunctions::DrawCylinder(Real f_radius,
                                             Real f_height,
                                             const CVector3& c_center_offset,
                                             const CColor& c_color,
                                             const CQuaternion& c_orientation,
                                             GLuint un_vertices) {

    	/* Draw top circle*/
    	CVector3 cCirclePos(0.0f, 0.0f, f_height * 0.5f);
    	cCirclePos.Rotate(c_orientation);
    	cCirclePos += c_center_offset;
    	DrawCircle(f_radius,
                 cCirclePos,
                 c_color,
                 true,
                 c_orientation,
                 un_vertices);

    	/* Draw bottom circle*/
    	cCirclePos.Set(0.0f, 0.0f, -f_height * 0.5f);
    	cCirclePos.Rotate(c_orientation);
    	cCirclePos += c_center_offset;
    	DrawCircle(f_radius,
                 cCirclePos,
                 c_color,
                 true,
                 c_orientation,
                 un_vertices);

    	/* Side surface */
      CVector3 cVertex1(f_radius, 0.0f,  f_height * 0.5f);
      CVector3 cVertex2(f_radius, 0.0f, -f_height * 0.5f);
      CRadians cAngle(CRadians::TWO_PI / un_vertices);

      /* Compute the quaternion defining the rotation of the vertices used to draw the side surface. */
      CQuaternion cVertexRotation;
      CVector3 cVertexRotationAxis(0.0f, 0.0f, 1.0f);
      cVertexRotationAxis.Rotate(c_orientation);
      cVertexRotation.FromAngleAxis(cAngle, cVertexRotationAxis);

      glDisable(GL_LIGHTING);
      glColor3ub(c_color.GetRed(),
                 c_color.GetGreen(),
                 c_color.GetBlue());

      glBegin(GL_QUAD_STRIP);

      /* Compute the normal direction of the starting edge. */
      CVector3 cNormalDirection(cVertex1.GetX(), cVertex1.GetY(), 0.0f);
      cNormalDirection.Rotate(c_orientation);
      glNormal3f(cNormalDirection.GetX(),
                 cNormalDirection.GetY(),
                 cNormalDirection.GetZ());

      /* Rotate the endpoints of the first edge.*/
      cVertex1.Rotate(c_orientation);
      cVertex2.Rotate(c_orientation);

      for(GLuint i = 0; i <= un_vertices; i++) {
         glVertex3f(cVertex1.GetX() + c_center_offset.GetX(),
                    c_center_offset.GetY() + cVertex1.GetY(),
                    c_center_offset.GetZ() + cVertex1.GetZ() );
         glVertex3f(cVertex2.GetX() + c_center_offset.GetX(),
                    c_center_offset.GetY() + cVertex2.GetY(),
                    c_center_offset.GetZ() + cVertex2.GetZ() );
         /* Rotate the vertices and the normal direction, set the new normal. */
         cVertex1.Rotate(cVertexRotation);
         cVertex2.Rotate(cVertexRotation);
         cNormalDirection.Rotate(cVertexRotation);
         glNormal3f(cNormalDirection.GetX(),
                    cNormalDirection.GetY(),
                    cNormalDirection.GetZ());
      }

      glEnd();
      glEnable(GL_LIGHTING);

   }