-void VertexSetup::update(unsigned mask) const
-{
- static bool direct = ARB_direct_state_access && ARB_vertex_attrib_binding;
- if(!direct && current()!=this)
- {
- dirty |= mask;
- return;
- }
-
- if(mask&UNUSED_ATTRIBS)
- {
- for(unsigned i=0, am=mask>>ATTRIB_SHIFT; am; ++i, am>>=1)
- if(am&1)
- {
- if(direct)
- glDisableVertexArrayAttrib(id, i);
- else
- glDisableVertexAttribArray(i);
- }
- }
-
- if(mask&VERTEX_ARRAY)
- update_vertex_array(*vertex_array, 0, 0, direct);
-
- if((mask&INSTANCE_ARRAY) && inst_array)
- update_vertex_array(*inst_array, 1, 1, direct);
-
- if(mask&INDEX_BUFFER)
- {
- if(direct)
- glVertexArrayElementBuffer(id, index_buffer->get_id());
- else
- glBindBuffer(ELEMENT_ARRAY_BUFFER, index_buffer->get_id());
- }
-}
-
-void VertexSetup::update_vertex_array(const VertexArray &array, unsigned binding, unsigned divisor, bool direct) const
-{
- Conditional<Bind> bind_vbuf(!direct, array.get_buffer(), ARRAY_BUFFER);
-
- const VertexFormat &fmt = array.get_format();
- unsigned stride = get_stride(fmt)*sizeof(float);
- if(direct)
- {
- glVertexArrayVertexBuffer(id, binding, array.get_buffer()->get_id(), 0, stride);
- glVertexArrayBindingDivisor(id, binding, divisor);
- }
-
- unsigned offset = 0;
- for(const unsigned char *c=fmt.begin(); c!=fmt.end(); ++c)
- {
- unsigned t = get_component_type(*c);
- if(t>=get_component_type(ATTRIB1))
- t -= get_component_type(ATTRIB1);
- unsigned sz = get_component_size(*c);
- if(direct)
- {
- if(*c==COLOR4_UBYTE)
- glVertexArrayAttribFormat(id, t, 4, GL_UNSIGNED_BYTE, true, offset);
- else
- glVertexArrayAttribFormat(id, t, sz, GL_FLOAT, false, offset);
- glVertexArrayAttribBinding(id, t, binding);
- glEnableVertexArrayAttrib(id, t);
- }
- else
- {
- if(*c==COLOR4_UBYTE)
- glVertexAttribPointer(t, 4, GL_UNSIGNED_BYTE, true, stride, reinterpret_cast<unsigned char *>(offset));
- else
- glVertexAttribPointer(t, sz, GL_FLOAT, false, stride, reinterpret_cast<float *>(offset));
- if(ARB_instanced_arrays)
- glVertexAttribDivisor(t, divisor);
- glEnableVertexAttribArray(t);
- }
- offset += sz*sizeof(float);
- }
-}
-
-void VertexSetup::bind() const
-{
- if(!vertex_array || !index_buffer)
- throw invalid_operation("VertexSetup::bind");
-
- if(set_current(this))
- {
- vertex_array->refresh();
- if(inst_array)
- inst_array->refresh();
- glBindVertexArray(id);
- if(dirty)
- {
- update(dirty);
- dirty = 0;
- }
- }
-}
-
-void VertexSetup::unbind()
-{
- if(set_current(0))
- glBindVertexArray(0);