Graphic calls portability

[Vincent Pelletier]

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Hi.

I implemented framebuffer basic primitives for ieee1275.
Here is a picture of what I get :
http://www.sysif.net/~vincent/sparc64-fb.png

For now it only works on the ati framebuffer card in my U10, because the
 Creator 3D card seems only to offer 1bit colors, and almost no packages
functions. Full details below (both cards were open'ed, and they get
some more properties when it's the case, like "address").

ok cd ati
ok words
selftest      disp-test     close         remove        restore
draw-logo     write         open          install
self-test     read-rectangle              draw-rectangle
fill-rectangle              get-colors    set-colors    color!
color@        dimensions    r1600x1200x70 r1600x1200x60
r1600x1000x76 r1600x1000x66 r1440x900x76  r1280x1024x85
r1280x1024x76 r1280x1024x75 r1280x1024x67 r1280x1024x60
r1280x800x76  r1152x900x76  r1152x900x66  r1024x800x84
r1024x768x77  r1024x768x75  r1024x768x70  r1024x768x60
r800x600x75   r640x480x60   r1600x1200x70x8
r1600x1200x60x8             r1600x1000x76x8
r1600x1000x66x8             r1440x900x76x8
r1280x1024x85x8             r1280x1024x76x8
r1280x1024x75x8             r1280x1024x67x8
r1280x1024x60x8             r1280x800x76x8
r1152x900x76x24             r1152x900x76x8
r1152x900x66x24             r1152x900x66x8
r1024x800x84x24             r1024x800x84x8
r1024x768x77x24             r1024x768x77x8
r1024x768x75x24             r1024x768x75x8
r1024x768x70x24             r1024x768x70x8
r1024x768x60x24             r1024x768x60x8
r800x600x75x24
r800x600x75x8 r640x480x60x24              r640x480x60x8
.version_pgx

ok .properties
address                  fe000000
assigned-addresses       82011010 00000000 e1000000 00000000 01000000
                         82011018 00000000 e2000000 00000000 00001000
aty,fcode                1.60
aty,card#                109-41900-00
aty,rom#                 113-41901-104
model                    ATY,GT-C
name                     SUNW,m64B
pgx_version              @(#)pgx24.fth 1.8 01/05/15
reg                      00011000 00000000 00000000 00000000 00000000
                         02011010 00000000 00000000 00000000 01000000
                         02011018 00000000 00000000 00000000 00001000
character-set            ISO8859-1
device_type              display
linebytes                00 00 04 80
depth                    00 00 00 08
height                   00 00 03 84
width                    00 00 04 80
fb-memory                00 00 00 04
aty,flags                00 00 00 02
aty,status               00 00 00 00
fast-back-to-back
devsel-speed             00000001
class-code               00030000
interrupts               00000001
max-latency              00000000
min-grant                00000008
revision-id              0000005c
device-id                00004750
vendor-id                00001002


ok cd screen
ok words
selftest      disp-test     close         remove        restore
draw-logo     write         open          install
ffb_change_scrn_params      ffb_do_edid   .version_ffb

ok .properties
character-set            ISO8859-1
address                  fdbee000
ihandle                  ff f9 2a 70
reg                      000001fc 00000000 00000000 00000400
                         000001fc 00400000 00000000 00200000
                         000001fc 00600000 00000000 00200000
                         000001fc 01000000 00000000 00400000
                         000001fc 01400000 00000000 00400000
                         000001fc 01800000 00000000 00400000
                         000001fc 01c00000 00000000 00400000
                         000001fc 02000000 00000000 01000000
                         000001fc 03000000 00000000 01000000
                         000001fc 04000000 00000000 00400000
                         000001fc 04400000 00000000 00400000
                         000001fc 04800000 00000000 00400000
                         000001fc 04c00000 00000000 00400000
                         000001fc 05000000 00000000 01000000
                         000001fc 06000000 00000000 02000000
                         000001fc 09000000 00000000 00800000
                         000001fc 09800000 00000000 00800000
                         000001fc 0a000000 00000000 01000000
                         000001fc 0b000000 00000000 00800000
                         000001fc 0b800000 00000000 00800000
                         000001fc 0c000000 00000000 00400000
                         000001fc 0c800000 00000000 00800000
                         000001fc 0d000000 00000000 00800000
                         000001fc 0d800000 00000000 00800000
fbc_reg_id               32 41 90 6d
ramdac_rev               00 00 00 01
fcode_version            @(#)ffb2p.fth 2.9 98/07/14
model                    SUNW,501-4788
board_type               00 00 00 33
upa-interrupt-slave
interrupts               00000005
upa-portid               0000001e
monitor_mode             00 00 00 02
v_freq                   00 00 00 4b
height                   00 00 04 b0
width                    00 00 06 40
edid_data                00 ff ff ff ff ff ff 00 26 cd 18 19 ef d0 fb 02
no_edid_blks             00 00 00 01
device_type              display
name                     SUNW,ffb

Now the point of my mail :
Couldn't we make a common interface for all graphic calls, so the
graphic commands would be in /commands ?
The needed commands would be the ones already defined in
video/i386/pc/vbe.c with those changes :
- -Add a function to list the available framebuffers
- -Allow to specify the framebuffer to open
- -Add a framebuffer handles (like file handles) for later use in
framebuffer functions

Exact prototypes to be defined, but if someone works on them, please
consider 64 bits archs :) .

Vincent Pelletier
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