Geert Uytterhoeven c895650f5d util: add SMPTE pattern support for C2 format ... Add support for drawing the SMPTE pattern in a buffer using the C2 indexed format. As only four colors are available, resolution is halved, and the pattern is drawn in a PenTile RG-GB matrix, using Floyd-Steinberg dithering. The magnitude of the green subpixels is reduced, as there are twice as many green subpixels as red or blue subpixels. Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org> Acked-by: Sam Ravnborg <sam@ravnborg.org> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> --- Dithering example at https://drive.google.com/file/d/1g5O8XeacrjrC8rgaVENvR65YeI6QvmtO/view v5: - Add Reviewed-by, v4: - Replace FILL_COLOR() use by pentile_color_lut[], v3: - Add Acked-by, v2: - New.		2023-10-24 09:44:49 +02:00
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Android.mk	Android: fix building of modetest and proptest	2017-04-03 17:46:06 +01:00
common.h	tests: Split helpers into library	2015-12-18 17:43:40 +00:00
format.c	util: store number of colors for indexed formats	2023-10-24 09:44:21 +02:00
format.h	util: store number of colors for indexed formats	2023-10-24 09:44:21 +02:00
kms.c	tests/util: Add vkms driver	2023-02-10 05:22:52 +00:00
kms.h	tests: use drmModeGetConnectorTypeName	2022-07-02 20:13:29 +00:00
Makefile.sources	tests: Move name tables to libutil	2015-12-18 17:44:01 +00:00
meson.build	Add meson build system	2018-01-12 09:40:48 -08:00
pattern.c	util: add SMPTE pattern support for C2 format	2023-10-24 09:44:49 +02:00
pattern.h	util: factor out and optimize C8 SMPTE color LUT	2023-10-24 09:44:04 +02:00