Check for GL_EXT_unpack_subimage and GL_NV_pack_subimage to
check if GL_(UN)PACK_ROW_LENGTH is available. Set the offsets
manually to prevent calls to GL_(UN)PACK_SKIP_*.
v2: Check support for GL_NV_pack_subimage as suggested by Matt Turner.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@ubuntu.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
We're not drawing, and we're not initially setting up the texture for
later drawing.
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Keith Packard <keithp@keithp.com>
Now that we have the DIX global state for the current context, we
don't need to track nesting to try to reduce MakeCurrent overhead.
v2: Fix a mistaken replacement of a put_context with make_current in
glamor_fill_spans_gl() (caught by keithp).
Signed-off-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com> (v1)
Reviewed-by: Adam Jackson <ajax@redhat.com> (v1)
These use glTexSubimage2D for upload and glReadPixels for
download. There are a variety of interfaces to the basic function as
needed by the callers.
Signed-off-by: Keith Packard <keithp@keithp.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
