4 Commits (4a6897c6970b91c158da2284317261f0cfc5b9c9)

Author	SHA1	Message	Date
Michael Hanselmann	0349dabcd3	waveshare2in13v2: List width first in String() result ... The convention is to write dimensions with the width first.	4 years ago
Michael Hanselmann	59e1d3f851	waveshare2in13v2: Add test for New() ... Ensure the internal buffer has the correct size and a few other properties are correct. Signed-off-by: Michael Hanselmann <public@hansmi.ch>	4 years ago
Michael Hanselmann	ecc1eed386	waveshare213v2: Add support for partial drawing ... When the destination rectangle didn't start at (0,0) or cover the whole display the Dev.Draw function would continue to update the display in full. Obviously that didn't result in a good output. This change updates the drawing logic to only update the affected area (aligned to whole bytes on the horizontal axis) and limits the amount of transferred data to the minimum needed to cover the destination rectangle. The calculation of the various offsets as well as the function sending the image data are written to support unittesting. Signed-off-by: Michael Hanselmann <public@hansmi.ch>	4 years ago
hansmi	5b35a3fb05	waveshare2in13v2: Deduplicate and simplify logic for sending data (#33) ... Dev.Clear: Avoid writing one beyond the end of the line. Also build the row data only once before sending it for each line. Dev.Draw, Dev.DrawPartial: Deduplicate logic for iterating over pixels and simplify it such that a whole row of bits is built before sending them in one go. Tested using a Waveshare e-Paper 2.13in V2 display. Signed-off-by: Michael Hanselmann <public@hansmi.ch>	4 years ago