void COGL::ResetClientStates (void)
{
for (int i = 4; i; ) {
DisableClientStates (1, 1, 1, GL_TEXTURE0 + --i);
glEnable (GL_TEXTURE_2D);
OglBindTexture (0);
if (i)
glDisable (GL_TEXTURE_2D);
}
memset (m_states.clientStates, 0, sizeof (m_states.clientStates));
}
bool RendererLegacy::DrawTriangles(const VertexArray *v, Material *m, PrimitiveType t)
{
if (!v || v->position.size() < 3) return false;
m->Apply();
EnableClientStates(v);
glDrawArrays(t, 0, v->GetNumVerts());
m->Unapply();
DisableClientStates();
return true;
}
int COGL::EnableClientStates (int bTexCoord, int bColor, int bNormals, int nTMU)
{
if (nTMU >= GL_TEXTURE0)
SelectTMU (nTMU, true);
if (!bNormals)
DisableClientState (GL_NORMAL_ARRAY);
else if (!EnableClientState (GL_NORMAL_ARRAY, -1)) {
DisableClientStates (0, 0, 0, -1);
return 0;
}
if (!bTexCoord)
DisableClientState (GL_TEXTURE_COORD_ARRAY);
else if (!EnableClientState (GL_TEXTURE_COORD_ARRAY, -1)) {
DisableClientStates (0, 0, 0, -1);
return 0;
}
if (!bColor)
DisableClientState (GL_COLOR_ARRAY);
else if (!EnableClientState (GL_COLOR_ARRAY, -1)) {
DisableClientStates (bTexCoord, 0, 0, -1);
return 0;
}
return EnableClientState (GL_VERTEX_ARRAY, -1);
}
bool RendererLegacy::DrawSurface(const Surface *s)
{
if (!s || !s->GetVertices() || s->GetNumIndices() < 3) return false;
const Material *m = s->GetMaterial().Get();
const VertexArray *v = s->GetVertices();
const_cast<Material*>(m)->Apply();
EnableClientStates(v);
glDrawElements(s->GetPrimtiveType(), s->GetNumIndices(), GL_UNSIGNED_SHORT, s->GetIndexPointer());
const_cast<Material*>(m)->Unapply();
DisableClientStates();
return true;
}