static inline void MultiDrawElements(Args... args) {
#ifdef HAVE_DYNAMIC_MULTI_DRAW_ARRAYS
multi_draw_elements(args...);
#else
glMultiDrawElementsEXT(args...);
#endif
}
//Draw a biquadratic patch
void BSP_BIQUADRATIC_PATCH::Draw()
{
//set array pointers
glVertexPointer(3, GL_FLOAT, sizeof(BSP_VERTEX), &vertices[0].position);
glTexCoordPointer(2, GL_FLOAT, sizeof(BSP_VERTEX), &vertices[0].decalS);
glClientActiveTextureARB(GL_TEXTURE1_ARB);
glTexCoordPointer(2, GL_FLOAT, sizeof(BSP_VERTEX), &vertices[0].lightmapS);
glClientActiveTextureARB(GL_TEXTURE0_ARB);
//Draw a triangle strip for each row
if(!EXT_multi_draw_arrays_supported)
{
for(int row=0; row<tesselation; ++row)
{
glDrawElements( GL_TRIANGLE_STRIP, 2*(tesselation+1), GL_UNSIGNED_INT,
&indices[row*2*(tesselation+1)]);
}
}
else
{
glMultiDrawElementsEXT( GL_TRIANGLE_STRIP, trianglesPerRow,
GL_UNSIGNED_INT, (const void **)rowIndexPointers,
tesselation);
}
}
void display(void)
{
static GLubyte oneIndices[] = {0, 1, 2, 3, 4, 5, 6};
static GLubyte twoIndices[] = {1, 7, 8, 9, 10, 11};
static GLsizei count[] = {7, 6};
static GLvoid * indices[2] = {oneIndices, twoIndices};
glClear (GL_COLOR_BUFFER_BIT);
glColor3f (1.0, 1.0, 1.0);
glMultiDrawElementsEXT (GL_LINE_STRIP, count, GL_UNSIGNED_BYTE,
indices, 2);
glFlush ();
}