+++ /dev/null
-#include <msp/gl/extensions/arb_vertex_array_object.h>
-#include <msp/gl/extensions/arb_vertex_buffer_object.h>
-#include <msp/gl/extensions/arb_vertex_shader.h>
-#include "buffer.h"
-#include "gl.h"
-#include "vertexarray.h"
-#include "vertexsetup.h"
-
-namespace Msp {
-namespace GL {
-
-VertexSetup::VertexSetup():
- dirty(0),
- array(0),
- index_buffer(0)
-{
- static Require req(ARB_vertex_array_object);
- glGenVertexArrays(1, &id);
-}
-
-VertexSetup::~VertexSetup()
-{
- if(current()==this)
- unbind();
- glDeleteVertexArrays(1, &id);
-}
-
-void VertexSetup::set_vertex_array(const VertexArray &a)
-{
- array = &a;
- update(VERTEX_ARRAY);
-}
-
-void VertexSetup::set_index_buffer(const Buffer &ibuf)
-{
- index_buffer = &ibuf;
- update(INDEX_BUFFER);
-}
-
-void VertexSetup::update(unsigned mask) const
-{
- if(current()!=this)
- {
- dirty |= mask;
- return;
- }
-
- if(mask&VERTEX_ARRAY)
- update_vertex_array();
-
- if(mask&INDEX_BUFFER)
- glBindBuffer(ELEMENT_ARRAY_BUFFER, index_buffer->get_id());
-}
-
-void VertexSetup::update_vertex_array() const
-{
- Bind bind_vbuf(array->get_buffer(), ARRAY_BUFFER);
-
- const VertexFormat &fmt = array->get_format();
- unsigned stride = get_stride(fmt)*sizeof(float);
- float *ptr = 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(*c==COLOR4_UBYTE)
- glVertexAttribPointer(t, 4, GL_UNSIGNED_BYTE, true, stride, ptr);
- else
- glVertexAttribPointer(t, sz, GL_FLOAT, false, stride, ptr);
- glEnableVertexAttribArray(t);
- ptr += sz;
- }
-}
-
-void VertexSetup::bind() const
-{
- if(set_current(this))
- {
- glBindVertexArray(id);
- if(dirty)
- {
- update(dirty);
- dirty = 0;
- }
- }
-}
-
-void VertexSetup::unbind()
-{
- if(set_current(0))
- glBindVertexArray(0);
-}
-
-} // namespace GL
-} // namespace Msp