Bridgetek FT801 - Command groups

FT800 Series Programmer Guide
Version 2.1
Document Reference No.: BRT_000030 Clearance No.: BRT#037
153
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5.10 Co-processor engine resources
The co-processor engine does not change hardware graphics state. That is, graphics
states such as color and line width are not to be changed by co-processor engine.
However, the widgets do reserve some hardware resources, which user programs need
take into account:
 Bitmap handle 15 is used by the 3D-effect buttons, keys and gradient.
 One graphics context is used by objects, so the effective stack depth for
SAVE_CONTEXT and RESTORE_CONTEXT commands is 3 levels.
5.11 Command groups
These commands begin and finish the display list:
 CMD_DLSTART - start a new display list
 CMD_SWAP - swap the current display list
Commands to draw graphics objects:
 CMD_TEXT - draw text
 CMD_BUTTON - draw a button
 CMD_CLOCK - draw an analog clock
 CMD_BGCOLOR - set the background color
 CMD_FGCOLOR - set the foreground color
 CMD_GRADCOLOR - set the 3D effects for CMD_BUTTON and CMD_KEYS
highlight color
 CMD_GAUGE - draw a gauge
 CMD_GRADIENT - draw a smooth color gradient
 CMD_KEYS - draw a row of keys
 CMD_PROGRESS - draw a progress bar
 CMD_SCROLLBAR - draw a scroll bar
 CMD_SLIDER - draw a slider
 CMD_DIAL - draw a rotary dial control
 CMD_TOGGLE - draw a toggle switch
 CMD_NUMBER - draw a decimal number
Commands to operate on memory:
 CMD_MEMCRC - compute a CRC-32 for memory
 CMD_MEMZERO - write zero to a block of memory
 CMD_MEMSET - fill memory with a byte value
 CMD_MEMWRITE - write bytes into memory
 CMD_MEMCPY - copy a block of memory
 CMD_APPEND - append memory to display list
Commands for loading image data into FT800 memory:
 CMD_INFLATE - decompress data into memory
 CMD_LOADIMAGE - load a JPEG image