char* Map(uint32 size) {
char* map;
m_size = size;
if (m_size > m_pbo_size) {
fprintf(stderr, "BUG: PBO too small %d but need %d\n", m_pbo_size, m_size);
}
if (m_offset[m_current_pbo] + m_size >= m_pbo_size) {
//NextPbo(); // For test purpose
NextPboWithSync();
}
// Note: texsubimage will access currently bound buffer
// Pbo ready let's get a pointer
BindPbo();
map = m_map[m_current_pbo] + m_offset[m_current_pbo];
return map;
}
char* Map(uint32 size) {
char* map;
m_size = size;
if (m_size > m_pbo_size) {
fprintf(stderr, "BUG: PBO too small %d but need %d\n", m_pbo_size, m_size);
}
if (m_texture_storage) {
if (m_offset[m_current_pbo] + m_size >= m_pbo_size) {
//NextPbo(); // For test purpose
NextPboWithSync();
}
// Note: texsubimage will access currently bound buffer
// Pbo ready let's get a pointer
BindPbo();
map = m_map[m_current_pbo] + m_offset[m_current_pbo];
} else {
GLbitfield flags = GL_MAP_WRITE_BIT | GL_MAP_UNSYNCHRONIZED_BIT | GL_MAP_INVALIDATE_RANGE_BIT;
if (m_offset[m_current_pbo] + m_size >= m_pbo_size) {
NextPbo();
flags &= ~GL_MAP_INVALIDATE_RANGE_BIT;
flags |= GL_MAP_INVALIDATE_BUFFER_BIT;
}
// Pbo ready let's get a pointer
BindPbo();
// Be sure the map is aligned
map = (char*)glMapBufferRange(GL_PIXEL_UNPACK_BUFFER, m_offset[m_current_pbo], m_size, flags);
}
return map;
}
