bool FECustomFilter::prepareForDrawing(CustomFilterDrawType filterDrawType)
{
if (!m_context && !initializeContext())
return false;
m_context->makeContextCurrent();
// If the shader had compiler errors we cannot draw anything.
if (!m_compiledProgram->isInitialized())
return false;
// Only allocate a texture if the program needs one and the caller doesn't allocate one by itself.
if ((programNeedsInputTexture() && (filterDrawType == NEEDS_INPUT_TEXTURE) && !ensureInputTexture())
|| !ensureFrameBuffer())
return false;
return true;
}
bool FECustomFilter::prepareForDrawing()
{
m_context->makeContextCurrent();
// Lazily inject the compiled program into the CustomFilterRenderer.
if (!m_customFilterRenderer->compiledProgram())
m_customFilterRenderer->setCompiledProgram(m_validatedProgram->compiledProgram());
if (!m_customFilterRenderer->prepareForDrawing())
return false;
// Only allocate a texture if the program needs one and the caller doesn't allocate one by itself.
if ((m_customFilterRenderer->programNeedsInputTexture() && !ensureInputTexture()) || !ensureFrameBuffer())
return false;
return true;
}
bool FECustomFilter::prepareForDrawing()
{
m_context->makeContextCurrent();
if (!m_customFilterRenderer->compiledProgram()) {
RefPtr<CustomFilterCompiledProgram> compiledProgram = m_validatedProgram->compiledProgram();
if (!compiledProgram) {
// Lazily create a compiled program and let CustomFilterValidatedProgram hold on to it.
compiledProgram = CustomFilterCompiledProgram::create(m_context, m_validatedProgram->validatedVertexShader(), m_validatedProgram->validatedFragmentShader(), m_validatedProgram->programInfo().programType());
m_validatedProgram->setCompiledProgram(compiledProgram);
}
// Lazily inject the compiled program into the CustomFilterRenderer.
m_customFilterRenderer->setCompiledProgram(compiledProgram.release());
}
if (!m_customFilterRenderer->prepareForDrawing())
return false;
// Only allocate a texture if the program needs one and the caller doesn't allocate one by itself.
if ((m_customFilterRenderer->programNeedsInputTexture() && !ensureInputTexture()) || !ensureFrameBuffer())
return false;
return true;
}