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12 Commits

Author SHA1 Message Date
Damien George adf3cb5081 extmod/modframebuf: Store underlying buffer object to prevent GC free. 2016-12-09 12:58:45 +11:00
Damien George 898d4c1217 extmod/modframebuf: Make framebuf implement the buffer protocol. 
So that one can easily access the underlying data of the frame buffer, eg
to write the data out to a display.
 2016-12-08 15:17:47 +11:00
Damien George 374ed317c5 extmod/modframebuf: Add hline, vline, rect and line methods. 
These are basic drawing primitives.  They work in a generic way on all
framebuf formats by calling the underlying setpixel or fill_rect C-level
primitives.
 2016-12-05 11:52:51 +11:00
Damien George a081b49d55 extmod/modframebuf: Optimise fill and fill_rect methods. 
Fill is a very common operation (eg to clear the screen) and it is worth
optimising it, by providing a specialised fill_rect function for each
framebuffer format.

This patch improved the speed of fill by 10 times for a 16-bit display
with 160*128 pixels.
 2016-12-01 16:51:31 +11:00
Damien George 81e171b7bb extmod/modframebuf: Add back legacy FrameBuffer1 "class". 
For backwards compatibility.  It simple creates a frame buffer with the
MVLSB format.
 2016-12-01 16:43:25 +11:00
Radomir Dopieralski 225e22b287 extmod/modframebuf: Make FrameBuffer handle 16bit depth. 
Rename FrameBuffer1 into FrameBuffer and make it handle different bit
depths via a method table that has getpixel and setpixel.  Currently
supported formats are MVLSB (monochrome, vertical, LSB) and RGB565.

Also add blit() and fill_rect() methods.
 2016-12-01 16:43:25 +11:00
Damien George 93c4a6a3f7 all: Remove 'name' member from mp_obj_module_t struct. 
One can instead lookup __name__ in the modules dict to get the value.
 2016-09-22 00:23:16 +10:00
Radomir Dopieralski 778729c597 extmod/framebuf: Add the xstep!=0 case to scroll() method. 
Adds horizontal scrolling. Right now, I'm just leaving the margins
created by the scrolling as they were -- so they will repeat the
edge of the framebuf. This is fast, and the user can always fill
the margins themselves.
 2016-09-05 12:06:56 +10:00
Damien George 47899a1ab8 extmod/modframebuf: Include font from stmhal directory explicitly. 
So that users of framebuf don't need to have stmhal directory in their
path.  (Eventually the font can be moved elsewhere.)
 2016-09-04 16:39:28 +10:00
Radomir Dopieralski 41ec22632d extmod/modframebuf: Fix fill and scroll when height not divisible by 8. 
There was a bug in `framebuf1_fill` function, that makes it leave a few
lines unfilled at the bottom if the height is not divisible by 8.

A similar bug is fixed in the scroll method.
 2016-09-02 23:58:34 +10:00
Damien George 531217a06b extmod/modframebuf: Fix pixel accessor to return a 1-bit result. 2016-08-27 18:31:58 +10:00
Damien George 53ad681ed1 extmod: Add initial framebuf module. 2016-04-12 14:06:53 +01:00