void ShaderImpl::initialize(CL_GraphicContext &p_gc)
{
G_ASSERT(!m_initialized);
CL_ResourceManager *resMgr = Gfx::Stage::getResourceManager();
m_program = CL_ProgramObject(p_gc);
// load vertex shader
const CL_String &vertShaderName = m_parent->getVertexShaderResourceName();
m_vertShader = CL_ShaderObject::load(p_gc, vertShaderName, resMgr);
m_program.attach(m_vertShader);
// load fragment shader
const CL_String &fragShaderName = m_parent->getFragmentShaderResourceName();
m_fragShader = CL_ShaderObject::load(p_gc, fragShaderName, resMgr);
m_program.attach(m_fragShader);
// bind common attributes
m_program.bind_attribute_location(CL_PRIARR_VERTS, "Position");
m_program.bind_attribute_location(CL_PRIARR_COLORS, "Color0");
m_program.bind_attribute_location(CL_PRIARR_TEXCOORDS, "TexCoord0");
// link the program
if (!m_program.link()) {
m_program.detach(m_vertShader);
m_program.detach(m_fragShader);
throw CL_Exception(
cl_format(
"error linking shader %1, %2: %3",
vertShaderName, fragShaderName,
m_program.get_info_log()
)
);
}
// build frame buffer
m_frameBuffer = CL_FrameBuffer(p_gc);
// build quad
m_quad = CL_PrimitivesArray(p_gc);
m_quad.set_attributes(CL_PRIARR_VERTS, m_quadVerts);
m_quad.set_attributes(CL_PRIARR_COLORS, QUAD_COLORS);
m_quad.set_attributes(CL_PRIARR_TEXCOORDS, QUAD_TEX_COORDS);
m_initialized = true;
}
void ShaderImpl::destroy()
{
G_ASSERT(m_initialized);
m_quad = CL_PrimitivesArray();
m_frameBuffer = CL_FrameBuffer();
m_program.detach(m_vertShader);
m_program.detach(m_fragShader);
m_vertShader = CL_ShaderObject();
m_fragShader = CL_ShaderObject();
m_program = CL_ProgramObject();
m_initialized = false;
}
