Due to the nature of accessing a tiled buffer in an untiled way, we
used to loop through the whole buffer all the time. Add a small
mechanism to just break in case we know we already wrote every pixel
we should have written.
On kms_frontbuffer_tracknig/fbc-2p-primscrn-pri-shrfb-draw-pwrite
(with a 3200x1800 primary screen and a 1920x1080 secondary screen), I
could reduce the runtime from ~7.53s to ~6.01s.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Don't forget to flush in case we're in the last iteration of the loop.
This fixes failures of kms_frontbuffer_tracking when used with
--use-small-modes on eDP monitors.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
We need to test those pixel formats on the FBC code, so let's make
sure the drawing library works on them first.
v2: Update the gtkdoc (Daniel).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
With this, we don't need to worry about what happened to the buffer
before.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Fix various typos, add missing parameter documentation, include the
igt_draw section and update the list of ignored headers.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
For all those IGT tests that need an easy way to draw rectangles on
buffers using different methods. Current planned users: FBC and PSR
CRC tests.
There is also a tests/kms_draw_crc program to check if the library is
sane.
v2: - Move the test from lib/tests to tests/ (Daniel).
- Add igt_require() to filter out the swizzling/tiling methods we
don't support (Daniel).
- Simplify reloc handling on the BLT case (Daniel).
- Document enum igt_draw_method (Daniel).
- Document igt_draw_get_method_name() (Paulo).
v3: - Add IGT_DRAW_MMAP_WC (Chris).
- Implement the other trivial swizzling methods (Chris).
- Remove the gem_sync() calls (Chris).
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
