bool vogl_vao_state::remap_handles(vogl_handle_remapper &remapper)
{
VOGL_FUNC_TRACER
m_snapshot_handle = static_cast<GLuint>(remapper.remap_handle(VOGL_NAMESPACE_VERTEX_ARRAYS, m_snapshot_handle));
if (m_element_array_binding)
m_element_array_binding = static_cast<GLuint>(remapper.remap_handle(VOGL_NAMESPACE_BUFFERS, m_element_array_binding));
for (uint32_t i = 0; i < m_vertex_attribs.size(); i++)
{
if (m_vertex_attribs[i].m_array_binding)
m_vertex_attribs[i].m_array_binding = static_cast<GLuint>(remapper.remap_handle(VOGL_NAMESPACE_BUFFERS, m_vertex_attribs[i].m_array_binding));
else if (m_vertex_attribs[i].m_pointer)
m_vertex_attribs[i].m_pointer = remapper.remap_vertex_attrib_ptr(i, m_vertex_attribs[i].m_pointer);
}
return true;
}
bool vogl_vao_state::restore(const vogl_context_info &context_info, vogl_handle_remapper &remapper, GLuint64 &handle) const
{
VOGL_FUNC_TRACER
VOGL_CHECK_GL_ERROR;
if (!m_is_valid)
return false;
vogl_scoped_binding_state orig_binding(GL_VERTEX_ARRAY, GL_ARRAY_BUFFER, GL_ELEMENT_ARRAY_BUFFER);
if ((!m_snapshot_handle) && (!handle))
{
GL_ENTRYPOINT(glBindVertexArray)(0);
VOGL_CHECK_GL_ERROR;
}
else
{
if (!handle)
{
GLuint handle32 = 0;
GL_ENTRYPOINT(glGenVertexArrays)(1, &handle32);
if ((vogl_check_gl_error()) || (!handle32))
return false;
handle = handle32;
if (m_snapshot_handle)
{
remapper.declare_handle(VOGL_NAMESPACE_VERTEX_ARRAYS, m_snapshot_handle, handle, GL_NONE);
VOGL_ASSERT(remapper.remap_handle(VOGL_NAMESPACE_VERTEX_ARRAYS, m_snapshot_handle) == handle);
}
}
if (m_has_been_bound)
{
GL_ENTRYPOINT(glBindVertexArray)(static_cast<GLuint>(handle));
VOGL_CHECK_GL_ERROR;
}
}
if (m_has_been_bound)
{
GL_ENTRYPOINT(glBindBuffer)(GL_ELEMENT_ARRAY_BUFFER, static_cast<GLuint>(remapper.remap_handle(VOGL_NAMESPACE_BUFFERS, m_element_array_binding)));
VOGL_CHECK_GL_ERROR;
if (m_vertex_attribs.size() > context_info.get_max_vertex_attribs())
{
vogl_warning_printf("Saved VAO state has %u attribs, but context only allows %u attribs\n", m_vertex_attribs.size(), context_info.get_max_vertex_attribs());
}
for (uint32_t i = 0; i < math::minimum<uint32_t>(context_info.get_max_vertex_attribs(), m_vertex_attribs.size()); i++)
{
const vogl_vertex_attrib_desc &desc = m_vertex_attribs[i];
GL_ENTRYPOINT(glBindBuffer)(GL_ARRAY_BUFFER, static_cast<GLuint>(remapper.remap_handle(VOGL_NAMESPACE_BUFFERS, desc.m_array_binding)));
VOGL_CHECK_GL_ERROR;
vogl_trace_ptr_value trace_ptr_val = desc.m_pointer;
vogl_trace_ptr_value restore_ptr_val = trace_ptr_val;
if ((!desc.m_array_binding) && (trace_ptr_val) && (context_info.is_compatibility_profile()))
restore_ptr_val = remapper.remap_vertex_attrib_ptr(i, trace_ptr_val);
void *pRestore_ptr = reinterpret_cast<void *>(restore_ptr_val);
if ((handle) && (desc.m_array_binding == 0))
{
// If it's a non-default VAO, and there's no array binding, we can't call glVertexAttribPointer() because it's not allowed by AMD drivers (it thinks we're trying to set client side array data)
// "OpenGL: glVertexAttribPointer failed because it is not allowed to specify a client-side vertex or element array when a non-default vertex array object is bound (GL_INVALID_OPERATION) [source=API type=ERROR severity=HIGH id=2100]"
// Sanity checks.
if ((pRestore_ptr != NULL) || (desc.m_stride) || (desc.m_enabled))
{
vogl_warning_printf("Can't bind client side vertex array data on a non-default VAO, trace handle %u GL handle %u, restore ptr %p, size %i stride %i enabled %u\n",
m_snapshot_handle, static_cast<uint32_t>(handle), pRestore_ptr, desc.m_size, desc.m_stride, desc.m_enabled);
}
}
else
{
if (desc.m_integer)
{
GL_ENTRYPOINT(glVertexAttribIPointer)(i, desc.m_size, desc.m_type, desc.m_stride, pRestore_ptr);
VOGL_CHECK_GL_ERROR;
}
else
{
GL_ENTRYPOINT(glVertexAttribPointer)(i, desc.m_size, desc.m_type, desc.m_normalized, desc.m_stride, pRestore_ptr);
VOGL_CHECK_GL_ERROR;
}
}
GL_ENTRYPOINT(glVertexAttribDivisor)(i, desc.m_divisor);
VOGL_CHECK_GL_ERROR;
if (desc.m_enabled)
{
GL_ENTRYPOINT(glEnableVertexAttribArray)(i);
VOGL_CHECK_GL_ERROR;
}
else
{
GL_ENTRYPOINT(glDisableVertexAttribArray)(i);
VOGL_CHECK_GL_ERROR;
}
}
}
return true;
}
