This avoids exposing the ms driver structure to the winsys,
and nicely encapsulates driver customizable stuff.
In the future more things might be customizable by the winsys, like
throttling, 3D readback etc.
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Since the execbuffer change actually changed size off the ioctl
struct and not just a reuse of padded bits, we can't support
old kernels as easily as the scanout change was.
This reverts commit d9c65ddd52.
Looks like the nouveau drivers need this. Perhaps the drivers
could be fixed to add the extra -I path where needed. I'll leave
that up to others.
Should work correctly for all pixel formats except SRGB formats.
Generated code made much simpler by defining the pixel format as
a C structure. For example this is the generated structure for
PIPE_FORMAT_B6UG5SR5S_NORM:
union util_format_b6ug5sr5s_norm {
uint16_t value;
struct {
int r:5;
int g:5;
unsigned b:6;
} chan;
};
Not used everywhere yet because it seems compiled code is slower than
bitshift arithmetic by some misterious reason. So we should generate
bitshift arithmetic at least for the simple UNORM pixel formats.
There are so many state trackers and winsys that rely on it for debug
building, and trace can really build anywhere and is thin so there's no
point is making it an option.
Based on Xavier Chantry <chantry.xavier@gmail.com>'s patch:
"I also removed the trace check in xlib SConscript which is now useless, and
that script seems to deal with the cell driver, so I added cell in the check
for supported drivers."
This is similar to the changes to reduce the round-trips in ximage
backend.
When the server supports DRI_InvalidateBuffers, the event is used to
update the server stamp (this path is not tested). Otherwise, the
server stamp is updated when flush_frontbuffer or swap_buffers is
called. This makes sure at least the client APIs get the new buffers
when a new frame is started while skipping all round-trips during the
drawing.
ximage_surface_validate is called several times per frame. This commit
adds the client and server stamps to reduce the round-trips to the
server. The idea is to bump the server stamp when flush_frontbuffer or
swap_buffers is called, and to skip the round-trip when the client stamp
is equal to the server stamp. This makes sure the client APIs get the
new buffers when a new frame is started while skipping all round-trips
during the drawing. To make this work, egl_g3d_validate_context is no
longer called after swap_buffers.
src/glx/dri2.c will call dri2InvalidateBuffers when
DRI2_InvalidateBuffers event is received. This fixes a missing symbol
error, and paves the way for event-based validation.
