int push_gl_srv_buffer(struct gl_buffer *gl_buffer)
{
struct gl_srv_buffer *self =
b6_cast_of(gl_buffer, struct gl_srv_buffer, gl_buffer);
float *p, *q;
static const unsigned long int min_size = 32768;
unsigned long int v_size = b6_array_memsize(&gl_buffer->v);
unsigned long int t_size = b6_array_memsize(&gl_buffer->t);
unsigned long int size = v_size + t_size;
unsigned long int len = b6_array_length(&gl_buffer->t);
unsigned long int max = gl_buffer->t.capacity;
const float *v = b6_array_get(&gl_buffer->v, 0);
const float *t = b6_array_get(&gl_buffer->t, 0);
if (size < v_size || size < t_size) {
log_e("integer overflow");
return -2;
}
if (size < min_size)
size = min_size;
if (size > self->size) {
log_i("allocating %u bytes", size);
self->size = size;
if (self->id) {
maybe_unbind_gl_buffer(self->id);
destroy_gl_buffer(self->id);
}
create_gl_buffer(&self->id);
maybe_bind_gl_buffer(self->id);
alloc_gl_buffer(size);
}
log_i("pushing %u/%u vertices", len, max);
p = map_gl_buffer();
q = p + max * 2;
while (len--) { *p++ = *t++; *p++ = *t++; *q++ = *v++; *q++ = *v++; }
unmap_gl_buffer();
glTexCoordPointer(2, GL_FLOAT, 0, NULL);
glVertexPointer(2, GL_FLOAT, 0, ((float*)NULL) + max * 2);
return 0;
}
NE_API void destroy_drawing_shape(drawing_shape_id index) {
gl_drawing_shape* shape = &shapes[index];
destroy_vertex_array(&shape->vertex_array);
destroy_gl_buffer(&shape->vertex_array.index_buffer);
destroy_gl_buffer(&shape->vertex_array.vertex_buffer);
}
void finalize_gl_srv_buffer(struct gl_srv_buffer *self)
{
if (self->id)
destroy_gl_buffer(self->id);
finalize_gl_buffer(&self->gl_buffer);
}
