A fast and easily customised operating system
for ARM devices
Wimp_ReadPixTrans
Programmer's Reference Manuals
» Part 7 - The Desktop
» The Window Manager
» SWI Calls
» Wimp_ReadPixTrans
Wimp_ReadPixTrans
(SWI &400ED)
| Entry | |
|---|---|
| R0 | &0xx if sprite in system area |
| &1xx if sprite in user area and R2 = name | |
| &2xx if sprite in user area and R2 = pointer | |
| R1 | Pointer to spritearea (0 for system, 1 for Wimp) |
| R2 | Pointer to sprite name, or sprite itself |
| R6 | Block to receive scale factors |
| R7 | Block to receive colour translation table (2, 4 or 16 bytes) |
| Exit | |
|---|---|
| R0 | Corrupt |
| Blocks at | |
| R6 | Contains Scale Factors |
| R7 | Contains the Colour Translation Table |
Use
The purpose of this call is to inform the application how the Wimp would plot the icon independent of the current screen mode.
Notes
Sprites that were created with less than four bits per pixel, have their pixels mapped onto the Wimp’s greyscale colours.
Applications wishing to plot a sprite using the best approximation to its actual colours should use ColourTrans.