void GPUChromaKeyFilter::applyOnGPU(GLTexturePtr pSrcTex)
{
// Set up double-buffering
int curBufferIndex = m_Erosion%2;
getFBO(curBufferIndex)->activate();
getShader()->activate();
m_pTextureParam->set(0);
float h, s, l;
m_Color.toHSL(h, s, l);
m_pHKeyParam->set(h);
m_pHToleranceParam->set(m_HTolerance*360);
m_pHSoftToleranceParam->set((m_HTolerance+m_Softness)*360.0f);
m_pSKeyParam->set(s);
m_pSToleranceParam->set(m_STolerance);
m_pSSoftToleranceParam->set(m_STolerance+m_Softness);
m_pLKeyParam->set(l);
m_pLToleranceParam->set(m_LTolerance);
m_pLSoftToleranceParam->set(m_LTolerance+m_Softness);
m_pSpillThresholdParam->set(m_SpillThreshold*360);
m_pIsLastParam->set(int(m_Erosion==0));
draw(pSrcTex);
for (int i = 0; i < m_Erosion; ++i) {
curBufferIndex = (curBufferIndex+1)%2;
getFBO(curBufferIndex)->activate();
OGLShaderPtr pShader = avg::getShader(SHADERID_EROSION);
pShader->activate();
m_pErosionTextureParam->set(0);
m_pErosionIsLastParam->set(int(i==m_Erosion-1));
getDestTex((curBufferIndex+1)%2)->activate(GL_TEXTURE0);
m_pProjection2->draw(avg::getShader(SHADERID_EROSION));
}
}
void GPUBlurFilter::applyOnGPU(GLContext* pContext, GLTexturePtr pSrcTex)
{
int kernelWidth = m_pGaussCurveTex->getSize().x;
getFBO(pContext, 1)->activate();
getShader()->activate();
m_pHorizWidthParam->set(pContext, float(kernelWidth));
m_pHorizRadiusParam->set(pContext, (kernelWidth-1)/2);
m_pHorizTextureParam->set(pContext, 0);
m_pHorizKernelTexParam->set(pContext, 1);
m_pGaussCurveTex->getTex(pContext)->activate(WrapMode(), GL_TEXTURE1);
draw(pContext, pSrcTex, m_WrapMode);
getFBO(pContext, 0)->activate();
OGLShaderPtr pVShader = avg::getShader(SHADERID_VERT);
pVShader->activate();
m_pVertWidthParam->set(pContext, float(kernelWidth));
m_pVertRadiusParam->set(pContext, (kernelWidth-1)/2);
m_pVertTextureParam->set(pContext, 0);
m_pVertKernelTexParam->set(pContext, 1);
getDestTex(pContext, 1)->activate(m_WrapMode, GL_TEXTURE0);
m_pProjection2->draw(pContext, pVShader);
}
void GPUBlurFilter::applyOnGPU(GLTexturePtr pSrcTex)
{
int kernelWidth = m_pGaussCurveTex->getSize().x;
getFBO(1)->activate();
getShader()->activate();
m_pHorizWidthParam->set(float(kernelWidth));
m_pHorizRadiusParam->set((kernelWidth-1)/2);
m_pHorizTextureParam->set(0);
m_pHorizKernelTexParam->set(1);
m_pGaussCurveTex->activate(GL_TEXTURE1);
draw(pSrcTex);
getFBO(0)->activate();
OGLShaderPtr pVShader = avg::getShader(SHADERID_VERT);
pVShader->activate();
m_pVertWidthParam->set(float(kernelWidth));
m_pVertRadiusParam->set((kernelWidth-1)/2);
m_pVertTextureParam->set(0);
m_pVertKernelTexParam->set(1);
getDestTex(1)->activate(GL_TEXTURE0);
m_pProjection2->draw(pVShader);
}
