Commit 31057aec authored by Neil Turton's avatar Neil Turton
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Import from cleaned 360 CD

parents
hdr/** gitlab-language=armasm linguist-language=armasm linguist-detectable=true
s/** gitlab-language=armasm linguist-language=armasm linguist-detectable=true
Log of changes to DragASprite
Version 0.02
* Fix bug whereby bounding box for pointer ended up incorrect
* Fix bug whereby bounding box for drop shadow ended up incorrect
* Fix bug whereby box returned at end of drag was different to box supplied at start of drag
Version 0.06
* (DDV) added dithered dragging
* Added some support for Medusa 16/32bpp modes
How to drive DragASprite
How to do a drag
----------------
i) Prepare a sprite to be dragged (this may be trivial as the application may
have a suitable sprite already to hand).
ii) Perform a DragASprite_Start. This takes a copy of your sprite (so you can
dispose of your copy whenever you like) and starts a Wimp drag.
iii) When the Wimp sends you an indication that your drag has finished do
a DragASprite_Stop which will release the workspace necessary for
doing a drag-a-sprite.
The Swis
--------
DragASprite_Start (0x42400)
This Swi starts dragging a sprite. The sprite you supply is copied, so there
is no problem with you disposing of your copy of the sprite.
In:
r0 = flags:
Bits Meaning
0-1 Horizontal location of sprite in box:
00 Left
01 Centre
10 Right
11 <undefined>
2-3 Vertical location of sprite in box:
00 Bottom
01 Centre
10 Top
11 <undefined>
4-5 Drag bounding box is:
00 Whole screen
01 Display area of window that the pointer's over
10 User specified
11 <undefined>
6 Bounding box applies to:
0 The box
1 The pointer
7 Control of drop-shadow:
0 Don't do a drop-shadow
1 Make a drop shadow when copying the sprite
8-31 Reserved for future use, should be set to 0.
r1 = sprite area:
0 System sprite area
1 Wimp sprite area
other Address of sprite area
r2 = sprite name^
r3 = Pointer to 16-byte block containing box:
Offset Use
0 x0
4 y0
8 x1
12 y1
r4 = Pointer to optional (see flags) 16-byte block containing bounding box:
Offset Use
0 x0
4 y0
8 x1
12 y1
Out:
All registers preserved.
DragASprite_Stop (0x42401)
This Swi terminates any current drag operation and releases any
drag-a-sprite workspace claimed to do a drag. It is expected that this Swi
will be called when the user_drag_box reason is received by the application.
In:
-
Out:
-
Apache License
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http://www.apache.org/licenses/
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Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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# Copyright 1996 Acorn Computers Ltd
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#
# Makefile for DragASprit
#
# ***********************************
# *** C h a n g e L i s t ***
# ***********************************
# Date Name Description
# ---- ---- -----------
# 25-May-94 AMcC Created.
#
#
# Paths
#
EXP_HDR = <export$dir>
#
# Generic options:
#
MKDIR = cdir
AS = aasm
CP = copy
RM = remove
CCFLAGS = -c -depend !Depend -IC:
ASFLAGS = -depend !Depend -Stamp -quit -module -To $@ -From
CPFLAGS = ~cfr~v
#
# Program specific options:
#
COMPONENT = DragASprit
SOURCE = s.Gets
TARGET = rm.DragASprit
EXPORTS = ${EXP_HDR}.${COMPONENT}
#
# Generic rules:
#
rom: ${TARGET}
@echo ${COMPONENT}: rom module built
export: ${EXPORTS}
@echo ${COMPONENT}: export complete
install_rom: ${TARGET}
${CP} ${TARGET} ${INSTDIR}.${COMPONENT} ${CPFLAGS}
@echo ${COMPONENT}: rom module installed
clean:
${RM} ${TARGET}
@echo ${COMPONENT}: cleaned
${TARGET}: ${SOURCE}
${AS} ${ASFLAGS} ${SOURCE}
${EXP_HDR}.${COMPONENT}: hdr.${COMPONENT}
${CP} hdr.${COMPONENT} $@ ${CPFLAGS}
# Dynamic dependencies:
| Copyright 1996 Acorn Computers Ltd
|
| Licensed under the Apache License, Version 2.0 (the "License");
| you may not use this file except in compliance with the License.
| You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed under the License is distributed on an "AS IS" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations under the License.
|
Dir <Obey$Dir>
amu_machine clean
| Copyright 1996 Acorn Computers Ltd
|
| Licensed under the Apache License, Version 2.0 (the "License");
| you may not use this file except in compliance with the License.
| You may obtain a copy of the License at
|
| http://www.apache.org/licenses/LICENSE-2.0
|
| Unless required by applicable law or agreed to in writing, software
| distributed under the License is distributed on an "AS IS" BASIS,
| WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
| See the License for the specific language governing permissions and
| limitations under the License.
|
Dir <Obey$Dir>
amu_machine rom
; Copyright 1996 Acorn Computers Ltd
;
; Licensed under the Apache License, Version 2.0 (the "License");
; you may not use this file except in compliance with the License.
; You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS,
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; See the License for the specific language governing permissions and
; limitations under the License.
;
SUBT Exported DragASprite constants
OldOpt SETA {OPT}
OPT OptNoList+OptNoP1List
; ***********************************
; *** C h a n g e L i s t ***
; ***********************************
; Date Name Description
; ---- ---- -----------
; 21-Sep-90 JSR Created
; 17-Mar-93 DDV Hatching flag added before leaving
; 17-May-94 AMcC Changed to using the preferred SWI base and name symbols
SWIClass SETS DragASpriteSWI_Name
^ DragASpriteSWI_Base
AddSWI Start ; &42500
AddSWI Stop ; &42501
DS_HJustify_Mask * 3 :SHL: 0
DS_HJustify_Left * 0 :SHL: 0
DS_HJustify_Centre * 1 :SHL: 0
DS_HJustify_Right * 2 :SHL: 0
DS_VJustify_Mask * 3 :SHL: 2
DS_VJustify_Bottom * 0 :SHL: 2
DS_VJustify_Centre * 1 :SHL: 2
DS_VJustify_Top * 2 :SHL: 2
DS_BoundTo_Mask * 3 :SHL: 4
DS_BoundTo_Screen * 0 :SHL: 4
DS_BoundTo_Window * 1 :SHL: 4
DS_BoundTo_UserBox * 2 :SHL: 4
DS_Bound_Mask * 1 :SHL: 6
DS_Bound_Box * 0 :SHL: 6
DS_Bound_Pointer * 1 :SHL: 6
DS_DropShadow_Mask * 1 :SHL: 7
DS_DropShadow_Missing * 0 :SHL: 7
DS_DropShadow_Present * 1 :SHL: 7
DS_Hatching * 0 :SHL: 8
DS_NoHatching * 1 :SHL: 8
OPT OldOpt
END
*
!.gitignore
; Copyright 1996 Acorn Computers Ltd
;
; Licensed under the Apache License, Version 2.0 (the "License");
; you may not use this file except in compliance with the License.
; You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS,
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; See the License for the specific language governing permissions and
; limitations under the License.
;
GBLL T
T SETL {TRUE}
GBLL F
F SETL {FALSE}
GBLL debugany
debugany SETL F
MACRO
$Label debugF $Flag
GBLL $Label
$Label SETL $Flag :LAND: debugany
MEND
debugstart debugF T
debugstop debugF F
debugdrag debugF F
debuggwindow debugF F
GBLS debug_Inclusion
debug_Inclusion SETS "; No debug wanted"
[ debugany
debug_Inclusion SETS " GET Hdr:debug"
]
$debug_Inclusion
debug_Inclusion SETS "; No Host debug wanted"
[ debugany
Host_Debug SETL T
[ Host_Debug
debug_Inclusion SETS " GET Hdr:HostFS"
]
]
$debug_Inclusion
END
; Copyright 1996 Acorn Computers Ltd
;
; Licensed under the Apache License, Version 2.0 (the "License");
; you may not use this file except in compliance with the License.
; You may obtain a copy of the License at
;
; http://www.apache.org/licenses/LICENSE-2.0
;
; Unless required by applicable law or agreed to in writing, software
; distributed under the License is distributed on an "AS IS" BASIS,
; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
; See the License for the specific language governing permissions and
; limitations under the License.
;
; b/g(0) is the b/g behind the plotted sprite
; unplot:
; Plot the b/g sprite at the relevant location
UnPlot ENTRY "r0-r11"
BL DoBusinessToDest
EXITS VS
[ debugdrag
DLINE "UnPlot"
]
MOV r3, r0
MOV r4, r1
LDR r0, =SpriteReason_PutSpriteUserCoords + &100
LDR r1, bg0sa
ADR r2, bg_name
MOV r5, #0
SWI XOS_SpriteOp
EXITS
; plot:
; Grab the b/g sprite at the required location
; Plot the f/g sprite at the required location
Plot ENTRY "r0-r11"
MOV lr, #0
STRB lr, FirstMoveIsPlot
BL DoBusinessToDest
EXITS VS
[ debugdrag
DREG r0, "Plot at ",cc
DREG r1, ","
]
; Grab bg0 from the screen
MOV r4, r0
MOV r5, r1
SUB r6, r2, #1
SUB r7, r3, #1
BL Getbg0
EXITS VS
; Plot fg
LDR r0, =SpriteReason_PutSpriteUserCoords + &100
LDR r1, fgsa
ADRL r2, fg_name
MOV r3, r4
MOV r4, r5
MOV r5, #8 ; Mask is used for transparency
SWI XOS_SpriteOp
EXITS
; ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
; Move:
;
; In r0-r3 = dst
; r4-r7 = src
;
; Grab bg1 (by GWindow escape) at dst
; Plot bg0 to bg1 (bg0 at src, bg1 at dst)
; Plot fg to bg0 (fg at dst, gb0 at src)
; Plot fg to screen (fg at dst)
; Plot bg0 to screen (bg0 at src)
; Swap bg0 and bg1
;
Move
ENTRY "r0-r7" , 8*4
; If first action is move then it must be plot instead
LDRB lr, FirstMoveIsPlot
TEQ lr, #0
ADDNE sp, sp, #8*4
Pull "$Proc_RegList,lr",NE
BNE Plot
BL DoBusinessToDest
BLVC DoBusinessToSource
STMIA sp, {r0-r7}
TEQ r0, r4
TEQEQ r1, r5
TEQEQ r2, r6
TEQEQ r3, r7
EXITS EQ
[ debugdrag
DLINE "Move ",cc
LDR r4, bl_offset_x
DREG r4, "x_o=",cc
LDR r4, bl_offset_y
DREG r4, " y_o="
]
; Grab bg1 (by GWindow escape) at dst
MOV r4, r0
MOV r5, r1
MOV r6, r2
MOV r7, r3
BL Getbg1
; Plot bg0 to bg1 (bg0 at src, bg1 at dst)
; Switch to bg1
LDRVC r1, bg1sa
BLVC SwitchOutputToSprite
EXITS VS
Push "r0-r3" ; Details to restore back to screen