DBool sfShader_loadFromStream(sfShader* shader, DStream* vertexShaderStream, DStream* fragmentShaderStream)
{
bool success = false;
if (vertexShaderStream || fragmentShaderStream)
{
if (!vertexShaderStream)
{
// fragment shader only
sfmlStream stream(fragmentShaderStream);
success = shader->This.loadFromStream(stream, sf::Shader::Fragment);
}
else if (!fragmentShaderStream)
{
// vertex shader only
sfmlStream stream(vertexShaderStream);
success = shader->This.loadFromStream(stream, sf::Shader::Vertex);
}
else
{
// vertex + fragment shaders
sfmlStream vertexStream(vertexShaderStream);
sfmlStream fragmentStream(fragmentShaderStream);
success = shader->This.loadFromStream(vertexStream, fragmentStream);
}
}
return success?DTrue:DFalse;
}
sfShader* sfShader_createFromStream(sfInputStream* vertexShaderStream, sfInputStream* geometryShaderStream, sfInputStream* fragmentShaderStream)
{
bool success = false;
sfShader* shader = new sfShader;
if (vertexShaderStream || geometryShaderStream || fragmentShaderStream)
{
if (!geometryShaderStream)
{
if (!vertexShaderStream)
{
// fragment shader only
CallbackStream stream(fragmentShaderStream);
success = shader->This.loadFromStream(stream, sf::Shader::Fragment);
}
else if (!fragmentShaderStream)
{
// vertex shader only
CallbackStream stream(vertexShaderStream);
success = shader->This.loadFromStream(stream, sf::Shader::Vertex);
}
else
{
// vertex + fragment shaders
CallbackStream vertexStream(vertexShaderStream);
CallbackStream fragmentStream(fragmentShaderStream);
success = shader->This.loadFromStream(vertexStream, fragmentStream);
}
}
else
{
// vertex + geometry + fragment shaders
CallbackStream vertexStream(vertexShaderStream);
CallbackStream geometryStream(geometryShaderStream);
CallbackStream fragmentStream(fragmentShaderStream);
success = shader->This.loadFromStream(vertexStream, geometryStream, fragmentStream);
}
}
if (!success)
{
delete shader;
shader = NULL;
}
return shader;
}
