Commit Graph

13 Commits

Author SHA1 Message Date
Sebastian Wicki 8f3510799d docs/library/framebuf.rst: Adjust dimensions in example.
This commit swaps the dimensions of the `framebuffer.FrameBuffer` in the
docs example from 10x100 to 100x10 pixels to avoid clipping.

This is done to better fit the subsequent example code, which writes
text of size 96x8 followed by a 96x1 horizontal line.

The y coordinate of the horizontal line is also adjusted such that it is
drawn inside of the new canvas bounds.
2021-11-17 14:36:33 +11:00
Peter Hinch 2296df0a32 extmod/modframebuf: Enable blit between different formats via a palette.
This achieves a substantial performance improvement when rendering glyphs
to color displays, the benefit increasing proportional to the number of
pixels in the glyph.
2021-08-25 15:31:23 +10:00
Peter Hinch 88cbfd791a docs/library: Fix framebuf monochrome 1-bit modes, swapping HLSB/HMSB.
This fix can be demonstrated by the following:

    b = bytearray(32)
    f = framebuf.FrameBuffer(b, 32, 8, framebuf.MONO_HLSB)
    f.pixel(0, 0, 1)
    print('MONO_HLSB', hex(b[0]))

    b = bytearray(32)
    f = framebuf.FrameBuffer(b, 32, 8, framebuf.MONO_HMSB)
    f.pixel(0, 0, 1)
    print('MONO_HMSB', hex(b[0]))

Outcome:

    MONO_HLSB 0x80
    MONO_HMSB 0x1
2020-02-10 23:04:15 +11:00
Jason Neal 7ef2f65114 docs/library: Add / to indicate positional-only args in library docs.
Removes the confusion of positional-only arguments which have defaults that
look like keyword arguments.
2020-01-12 13:44:59 +11:00
Jason Neal aec88ddf03 docs: More consistent capitalization and use of articles in headings.
See issue #3188.
2020-01-06 22:17:29 +11:00
Arsenijs 00e7fe8ab1 docs/library/framebuf: Add missing module reference in example code. 2019-07-31 23:45:24 +10:00
Damien George 46b35356e1 extmod/modframebuf: Add 8-bit greyscale format (GS8). 2017-12-14 17:36:13 +11:00
Petr Viktorin 34247465c3 extmod/modframebuf: Add 2-bit color format (GS2_HMSB).
This format is used in 2-color LED matrices and in e-ink displays like
SSD1606.
2017-12-14 17:13:02 +11:00
Peter Hinch d42b89bc3a docs/library/framebuf.rst: Generalise constructor to all colour formats. 2017-09-13 16:36:57 +10:00
Paul Sokolovsky 1942f0ceef docs/{framebuf,usocket}: Use markup adhering to the latest docs conventions. 2017-06-29 02:22:14 +03:00
Peter Hinch 468c6f9da1 extmod/modframebuf: Make monochrome bitmap formats start with MONO_.
MONO_xxx is much easier to read if you're not familiar with the code.
MVLSB is deprecated but kept for backwards compatibility, for the time
being.

This patch also updates the associated docs and tests.
2017-04-04 17:38:33 +10:00
Damien George fcab435607 docs/library/framebuf: Fix typo in bit-width for MVLSB description. 2017-03-15 21:54:56 +11:00
Rami Ali f9d18d96b7 docs/library: Add framebuf documentation. 2017-03-07 18:16:46 +11:00