Ejemplo n.º 1
0
void OpenGLShaderQuad::Render(double t, IPluginObjectInstance *pInstance) {
  IContext *pContext = dynamic_cast<IBaseInstance *>(pInstance)->GetContext();
  IRenderContextParams *contextParams = (IRenderContextParams *)pContext->TopContextParamObject();
  width = contextParams->GetFrameBufferWidth();
  height = contextParams->GetFrameBufferHeight();

  BeginOrtho();

  OpenGLShaderBase::ReloadIfNeeded();
  texture_count = 0;

  glGetError();
  program->Attach();
  unsigned int idResolution = program->GetUniform("iResolution");
  unsigned int idGlobalTime = program->GetUniform("iGlobalTime");

  // set user parameters
  SetParametersFromList(pInstance);

  if (idResolution != -1) {
    glUniform2f(idResolution, (float)width, (float)height);    
  }
  if (idGlobalTime != -1) {
    glUniform1f(idGlobalTime, (float)t);    
  }


  if (useblend->v->boolean) {
      glEnable(GL_BLEND);
      glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
      // glColor4f(1,1,1, alpha->v->float_val);
      // glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);    
      //glBlendFunc(GL_ONE, GL_ONE);
      //printf("%f:%f\n",t,alpha->v->float_val);
    }


  if (depthwrite->v->boolean) {
    glDepthMask(GL_TRUE);
  } else {
    glDepthMask(GL_FALSE);
  }

  if (texture->v->int_val != 0) {
      glActiveTexture(GL_TEXTURE0+texture_count);
      glBindTexture(GL_TEXTURE_2D,texture->v->int_val);
      texture_count++;
  }



  glBegin(GL_QUADS);
  /*
    glTexCoord2f(0.0f,0.0f);
    glVertex2f(-1.0f, -1.0f);
    glTexCoord2f(1.0f,0.0f);
    glVertex2f(1, -1.0f);
    glTexCoord2f(1.0f,1.0f);
    glVertex2f(1.0f, 1.0f);
    glTexCoord2f(0.0f,1.0f);
    glVertex2f(-1.0f, 1.0f);
    */
    for(int i=0;i<texture_count;i++) glMultiTexCoord2f(GL_TEXTURE0+i,0.0f,0.0f);
    glVertex2f(-1.0f, -1.0f);
    for(int i=0;i<texture_count;i++) glMultiTexCoord2f(GL_TEXTURE0+i,1.0f,0.0f);
    glVertex2f(1, -1.0f);
    for(int i=0;i<texture_count;i++) glMultiTexCoord2f(GL_TEXTURE0+i,1.0f,1.0f);
    glVertex2f(1.0f, 1.0f);
    for(int i=0;i<texture_count;i++) glMultiTexCoord2f(GL_TEXTURE0+i,0.0f,1.0f);
    glVertex2f(-1.0f, 1.0f);
  glEnd();  //glBegin(GL_QUADS);


  if (texture_count > 0) {
      for(int i=0;i<texture_count;i++) {
        glActiveTexture(GL_TEXTURE0+i);
        glBindTexture(GL_TEXTURE_2D, 0);
      }
      glActiveTexture(GL_TEXTURE0);    // set this back to 0 other wise the active texture is still valid
      glDisable(GL_TEXTURE_2D);

  }
  if (useblend->v->boolean) {
      glDisable(GL_BLEND);
  }

  program->Detach();

  EndOrtho();
  //glDisable(GL_TEXTURE_2D);
  glDepthMask(GL_TRUE);
}
Ejemplo n.º 2
0
void OpenGLDrawText::Render(double t, IPluginObjectInstance *pInstance) {
	// Render bitmaps
	IContext *pContext = dynamic_cast<IBaseInstance *>(pInstance)->GetContext();
	IRenderContextParams *contextParams = (IRenderContextParams *)pContext->TopContextParamObject();
	float width = contextParams->GetWindowWidth();
	float height = contextParams->GetWindowHeight();
	float px_width = contextParams->GetFrameBufferWidth();
	float px_height = contextParams->GetFrameBufferHeight();

	//printf("win (%d,%d), fb (%d:%d)\n",(int)width,(int)height,(int)px_width,(int)px_height);

	float xfac = px_width/width;
	float yfac = px_height/height;

	unsigned int uniform_tex = 0;
	unsigned int uniform_color = 0;

	if (rendered) return;
	rendered = false;

	if (useShaders) {
		OpenGLShaderBase::ReloadIfNeeded();
		OpenGLShaderBase::Attach();
	}
	//Window mode:
	//	win (640,360), fb (1280:720)
	//	xfac/yfac 2.000000:2.000000
	//	sx/sy 0.003125:0.005556
	//Full screen:
	//   win (1280,720), fb (2560:1600)
	//   xfac/yfac 2.000000:2.222222
	//   sx/sy 0.001563:0.003086



	float sx = 2.0 / width;
	float sy = 2.0 / height;
	//float sx = xfac / width;
	//float sy = yfac / height;

	// printf("xfac/yfac %f:%f\n",xfac,yfac);
	// printf("sx/sy %f:%f\n",sx,sy);

	sx *= width/height;
	//sy *= width/height;

	// ok for retina full screen -> but NOT in windowed mode
	// sx *= xfac;
	// sy *= yfac;


//	glActiveTexture(GL_TEXTURE0);
	glPushMatrix();
	glScalef(-1,1,1);
	textureFont->SetRenderScaling(sx,sy);

	float xp,yp;
	float str_width, str_height;
	float linepos = 0;
	std::string strBase = std::string(text->v->string);


	Tokenizer tok(strBase, "\\");
	while (true) {
		std::string str = tok.NextIncludeSpace();
		if (str.empty()) break;

		textureFont->Estimate(str, &str_width, &str_height);
		xp = yp = 0;
		xp = position->v->vector[0];
		yp = position->v->vector[1] + linepos;
		switch(alignment->v->int_val) {
			case 0 :	// none, use position
				break;
			case 1 :
				xp = 0;
				break;
			case 2 :	// right
				xp = 1 - str_width;
				break;
			case 3 : 	// center
				xp = 0 - str_width/2.0f;
				break;
		}

	//	printf("alignment: %d\n",alignment->v->int_val);
		if (useblend->v->boolean == true) {
			glEnable(GL_BLEND);
			glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
			glColor4f(color->v->rgba[0], color->v->rgba[1], color->v->rgba[2], alpha->v->float_val);
	//		glColor4f(1,1,1, alpha->v->float_val);
			glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);		
		} else {
			glColor4f(color->v->rgba[0], color->v->rgba[1], color->v->rgba[2], alpha->v->float_val);
		}
		textureFont->Draw(str,xp,yp);
		linepos -= sy * 0.5 * (float)fontSize->v->int_val;
	}
	glPopMatrix();

	if (useShaders) {
		OpenGLShaderBase::Detach();
	}
	if (useblend->v->boolean) {
		glDisable(GL_BLEND);
	}

}
Ejemplo n.º 3
0
void OpenGLShaderQuad::Render(double t, IPluginObjectInstance *pInstance) {
  IContext *pContext = dynamic_cast<IBaseInstance *>(pInstance)->GetContext();
  IRenderContextParams *contextParams = (IRenderContextParams *)pContext->TopContextParamObject();
  width = contextParams->GetFrameBufferWidth();
  height = contextParams->GetFrameBufferHeight();

  BeginOrtho();

  OpenGLShaderBase::ReloadIfNeeded();


  program->Attach();
  unsigned int idResolution = program->GetUniform("iResolution");
  unsigned int idGlobalTime = program->GetUniform("iGlobalTime");

  if (idResolution != -1) {
    glUniform2f(idResolution, (float)width, (float)height);    
  }
  if (idGlobalTime != -1) {
    glUniform1f(idGlobalTime, (float)t);    
  }

  // set user parameters
  SetParametersFromList(pInstance);


  if (depthwrite->v->boolean) {
    glDepthMask(GL_TRUE);
  } else {
    glDepthMask(GL_FALSE);
  }

  bool bUseTexture = false;
  if (texture->v->int_val != 0) {
      glBindTexture(GL_TEXTURE_2D,texture->v->int_val);
      glEnable(GL_TEXTURE_2D);
      bUseTexture = true;
  }


  glBegin(GL_QUADS);
    glTexCoord2f(0.0f,0.0f);
    glVertex2f(-1.0f, -1.0f);
    glTexCoord2f(1.0f,0.0f);
    glVertex2f(1, -1.0f);
    glTexCoord2f(1.0f,1.0f);
    glVertex2f(1.0f, 1.0f);
    glTexCoord2f(0.0f,1.0f);
    glVertex2f(-1.0f, 1.0f);
  glEnd();  //glBegin(GL_QUADS);

  if (bUseTexture) {
      glDisable(GL_TEXTURE_2D);
  }


  EndOrtho();
  program->Detach();
  //glDisable(GL_TEXTURE_2D);
  glDepthMask(GL_TRUE);
}