ShaderProgram& ShaderAssembler::getShader(const uint64 materialAttribs, const uint64 drawableAttribs)
{
JOP_ASSERT(m_instance != nullptr, "Couldn't load shader, no ShaderAssembler instance!");
auto& cont = m_instance->m_shaders;
const std::size_t combinedAttribs = combinedHash(materialAttribs, drawableAttribs);
{
std::unique_lock<std::recursive_mutex> lock(m_instance->m_mutex);
auto itr = cont.find(combinedAttribs);
if (itr != cont.end() && !itr->second.expired())
return *itr->second;
}
const auto& uber = m_instance->m_uber;
const std::string shaderName = "jop_shader_" + std::to_string(combinedAttribs);
std::string pp = Material::getShaderPreprocessorDef(materialAttribs) +
Drawable::getShaderPreprocessorDef(drawableAttribs);
ShaderProgram* s = &ResourceManager::getNamed<ShaderProgram>(shaderName, pp, Shader::Type::Vertex, uber[0], Shader::Type::Geometry, uber[1], Shader::Type::Fragment, uber[2]);
if (!ResourceManager::isError(*s))
{
s->setShouldSerialize(false);
s->setPersistence(5);
{
std::unique_lock<std::recursive_mutex> lock(m_instance->m_mutex);
cont[combinedAttribs] = static_ref_cast<ShaderProgram>(s->getReference());
}
// Needed so that different samplers don't all point to zero
if ((materialAttribs & Material::FragLightingAttribs) != 0)
{
static const int maxUnits = Texture::getMaxTextureUnits();
for (std::size_t i = 0; i < LightSource::getMaximumLights(LightSource::Type::Point); ++i)
s->setUniform("u_PointLightShadowMaps[" + std::to_string(i) + "]", maxUnits - 1);
}
}
return *s;
}
void Drawable::setOverrideShader(ShaderProgram& shader)
{
m_shader = static_ref_cast<ShaderProgram>(shader.getReference());
}