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kolibrios/programs/games/invaders/ASCGL.INC

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Added games: donkey, invaders, piton, lines git-svn-id: svn://kolibrios.org@950 a494cfbc-eb01-0410-851d-a64ba20cac60
2008-12-09 00:58:40 +01:00
;
; Assembler
; SMALL
; CODE
; Graphics
; Libary
;
; Ver 0.18 By Pavlushin Evgeni (RUSSIA)
; www.waptap@mail.ru
;InfoList
;0.01 LoadImage
;0.02 SetBmp
;0.03 Bmptoimg, Setimg ~01.03.2004
;0.04 Bug deleted, copyimg ~03.05.2004
;0.05 fullimg, collimg ~05.05.2004
;0.06 getimg ~09.05.2004
;0.07 convbmp ~13.05.2004
;0.08 fps ~14.05.2004
;0.09 drawfbox ~03.06.2004
;0.10 all macros optimized by halyavin, add at ~07.06.2004
;0.11 many macros optimized by halyavin, add at ~30.08.2004
;0.12 bmptoimg ~07.09.2004
;0.13 imgtoimg ~08.09.2004
;0.14 imgtoimg modify not brake bmp pict! ~09.09.2004
;0.15 giftoimg, giftoani ~10.09.2004
;0.16 setframe, rgbtobgr, setbmp deleted ~20.09.2004
;0.17 modification giftoimg, giftoani, getframeoff ~01.10.2004
;0.18 aframetoimg,aimgtoimg,frametoimg ~03.10.2004
aframetoimg_use_count=0
macro aframetoimg img, x, y, canvas,acol
{
local loo,loo2,acolor
aframetoimg_use_count=aframetoimg_use_count+1
if aframetoimg_use_count = 1
jmp end_aframetoimg_proc
acolor dd 0
aframetoimg_proc:
;getout coord
mov [acolor],ebp
mov edx,ebx ;img ;xsize
movzx eax,word [edx]
add eax,esi ;y cor
; mov eax,esi ;y cor
mul dword [ecx] ;canvas xsize
add eax,edi ;x cor
mov ebp,ebx ;img ;xsize
movzx edx,word [ebp]
add eax,edx
mov ebp,eax
shl eax,1
add ebp,eax
add ebp,ecx ;canvas+8;start
add ebp,8
;get img size
add ebx,4
mov eax,ebx ;img ;xsize
movzx esi,word [eax]
movzx edi,word [eax+2]
add ebx,4
mov edx,ebx ;img+8
loo2:
push esi
loo:
;test on alpha color
mov eax,[edx]
shl eax,8
shr eax,8
cmp eax,[acolor]
jne yx
add edx,3
add ebp,3
jmp nx
yx:
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
nx:
dec esi
jnz loo
pop esi
sub ebp,3
mov eax,[ecx] ;offset = offset+((canxsize-imgxsize)*3)
sub eax,esi
add ebp,eax
shl eax,1
add ebp,eax
add ebp,3
dec edi
jnz loo2
ret
end_aframetoimg_proc:
end if
push img
push canvas
push x
push y
push acol
pop ebp
pop esi
pop edi
pop ecx
pop ebx
call aframetoimg_proc
}
frametoimg_use_count=0
macro frametoimg img, x, y, canvas
{
local loo,loo2
frametoimg_use_count=frametoimg_use_count+1
if frametoimg_use_count = 1
jmp end_frametoimg_proc
frametoimg_proc:
;getout coord
mov edx,ebx ;img ;xsize
movzx eax,word [edx]
add eax,esi ;y cor
; mov eax,esi ;y cor
mul dword [ecx] ;canvas xsize
add eax,edi ;x cor
mov ebp,ebx ;img ;xsize
movzx edx,word [ebp]
add eax,edx
mov ebp,eax
shl eax,1
add ebp,eax
add ebp,ecx ;canvas+8;start
add ebp,8
;get img size
add ebx,4
mov eax,ebx ;img ;xsize
movzx esi,word [eax]
movzx edi,word [eax+2]
add ebx,4
mov edx,ebx ;img+8
loo2:
push esi
loo:
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
dec esi
jnz loo
pop esi
sub ebp,3
mov eax,[ecx] ;offset = offset+((canxsize-imgxsize)*3)
sub eax,esi
add ebp,eax
shl eax,1
add ebp,eax
add ebp,3
dec edi
jnz loo2
ret
end_frametoimg_proc:
end if
push img
push canvas
push x
push y
pop esi
pop edi
pop ecx
pop ebx
call frametoimg_proc
}
aimgtoimg_use_count=0
macro aimgtoimg img, x, y, canvas,acol,offset
{
local loo,loo2,acolor
aimgtoimg_use_count=aimgtoimg_use_count+1
if aimgtoimg_use_count = 1
jmp end_aimgtoimg_proc
acolor dd 0
aimgtoimg_proc:
;getout coord
mov [acolor],ebp
push eax ;;;;;;;;;;;;;;;;;;;
mov eax,esi ;y cor
mul dword [ecx] ;canvas xsize
add eax,edi ;x cor
mov ebp,eax
shl eax,1
add ebp,eax
add ebp,ecx ;canvas+8;start
add ebp,8
;get img size
mov eax,ebx ;img ;xsize
mov esi,[eax]
add ebx,4
mov eax,ebx ; img+4 ;ysize
mov edi,[eax]
add ebx,4
mov edx,ebx ;img+8
pop eax
add edx,eax
loo2:
push esi
loo:
;test on alpha color
mov eax,[edx]
shl eax,8
shr eax,8
cmp eax,[acolor]
jne yx
add edx,3
add ebp,3
jmp nx
yx:
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
nx:
dec esi
jnz loo
pop esi
sub ebp,3
mov eax,[ecx] ;offset = offset+((canxsize-imgxsize)*3)
sub eax,esi
add ebp,eax
shl eax,1
add ebp,eax
add ebp,3
dec edi
jnz loo2
ret
end_aimgtoimg_proc:
end if
push img
push canvas
push x
push y
push acol
push offset
pop eax
pop ebp
pop esi
pop edi
pop ecx
pop ebx
call aimgtoimg_proc
}
imgtoimg_use_count=0
macro imgtoimg img, x, y, canvas
{
local loo,loo2
imgtoimg_use_count=imgtoimg_use_count+1
if imgtoimg_use_count = 1
jmp end_imgtoimg_proc
imgtoimg_proc:
;getout coord
mov eax,esi ;y cor
mul dword [ecx] ;canvas xsize
add eax,edi ;x cor
mov ebp,eax
shl eax,1
add ebp,eax
add ebp,ecx ;canvas+8;start
add ebp,8
;get img size
mov eax,ebx ;img ;xsize
mov esi,[eax]
add ebx,4
mov eax,ebx ; img+4 ;ysize
mov edi,[eax]
add ebx,4
mov edx,ebx ;img+8
loo2:
push esi
loo:
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
mov al,byte [edx]
mov byte [ebp],al
inc ebp
inc edx
dec esi
jnz loo
pop esi
sub ebp,3
mov eax,[ecx] ;offset = offset+((canxsize-imgxsize)*3)
sub eax,esi
add ebp,eax
shl eax,1
add ebp,eax
add ebp,3
dec edi
jnz loo2
ret
end_imgtoimg_proc:
end if
push img
push canvas
push x
push y
pop esi
pop edi
pop ecx
pop ebx
call imgtoimg_proc
}
;DrawBox
macro drawfbox x,y,xs,ys,color
{
words2reg ebx,x,xs ;x*65536+xs
words2reg ecx,y,ys ;y*65536+ys
mov edx,color
mov eax,13
int 0x40
}
; FPS - Set Frame Per Second Display
fps_show_frequency=40
macro fps x,y,color,delcolor
{
local spdat,savetime,new_time,fps,fps_cntr,out_fps,new_time,ttt
local no_out_fps
jmp spdat
savetime dd 0
fps_cntr dd 0
fps dd 0
ttt dd 0
spdat:
get_time:
mov eax,3
int 0x40
cmp eax,[savetime]
jne new_time
inc [fps_cntr]
cmp dword [ttt],0
je out_fps
dec dword [ttt]
jmp no_out_fps
new_time:
mov [savetime],eax
mov ebx,[fps_cntr]
mov [fps],ebx
mov [fps_cntr],0
out_fps:
if ~(delcolor eq )
mov ebx,x*65536+30
mov ecx,y*65536+7
mov edx,delcolor
mov eax,13
int 0x40
end if
mov dword [ttt],fps_show_frequency
mov eax,47
mov ebx,5*65536
; mov bl,0
mov edx,x*65536+y
mov esi,color
mov ecx,[fps]
int 0x40
no_out_fps:
}
; COLLIMG - Collusion image's
_1dbounce_count=0;
macro collimg img1_off,x1,y1,img2_off,x2,y2,otv
{
local bounce,exit,anot,bc,nbc
mov esi,[img1_off] ;xs1
mov edi,[img2_off] ;ys2
mov eax,x1 ;
mov ebx,x2 ;
call _1dbounce
mov edx,ecx
mov esi,[img1_off+4] ;ys1
mov edi,[img2_off+4] ;ys2
mov eax,y1 ;
mov ebx,y2 ;
call _1dbounce
add edx,ecx
cmp edx,2
je bounce
mov otv,0
jmp exit
_1dbounce_count=_1dbounce_count+1
if _1dbounce_count = 1
_1dbounce:
cmp ebx,eax
jb anot
add eax,esi
cmp eax,ebx
jbe nbc
bc:
mov ecx,1
ret
anot:
add ebx,edi
cmp ebx,eax
ja bc
nbc:
xor ecx,ecx
ret
end if
bounce:
mov otv,1
exit:
}
macro rgbtobgr image
{
local loo
mov eax,[image]
mul dword [image+4]
mov ecx,eax
mov esi,image+8
; add esi,8
loo:
mov al,[esi]
mov bl,[esi+2]
mov [esi],bl
mov [esi+2],al
add esi,3
dec ecx
jnz loo
}
macro setimg x , y ,arg3
{
mov eax,7
mov ebx,arg3
add ebx,8
mov cx,[arg3]
shl ecx,16
add cx,[arg3+4]
; wordstoreg ecx,[arg3],[arg3+4]
words2reg edx, x , y ;arg1*65536+arg2
int 0x40
}
macro setframe x , y ,arg3
{
mov eax,7
mov ebx,arg3
add ebx,8
words2reg edx, x , y ;arg1*65536+arg2
add edx,dword [arg3]
mov ecx,dword [arg3+4]
int 0x40
}
macro getimg imgsrc,x,y,xs,ys,imgdest
{
local cyc
if xs eqtype 0
mov dword [imgdest],xs
else
mov eax,xs
mov dword [imgdest],eax
end if
if ys eqtype 0
mov dword [imgdest+4],ys
else
mov eax,ys
mov dword [imgdest+4],eax
end if
mov eax,dword [imgsrc] ;getx size
; lea ecx,[eax+2*eax]
mov ecx,eax
shl ecx,1
add ecx,eax
mov ebx,y
mul ebx
add eax,x
mov edx,ecx
lea eax,[eax+2*eax] ;eax=offset on imsrc
; mov ebp,eax
; shl eax,1
; add eax,ebp
mov ecx,xs
mov ebx,ys
mov edi,8+imgdest
lea esi,[eax+8+imgsrc]
; mov esi,eax
; add esi,8
; add esi,imgsrc
cld
cyc:
movsw
movsb
dec ecx
jne cyc
add esi,edx
mov ecx,xs
sub esi,ecx
sub esi,ecx
sub esi,ecx
dec ebx
jne cyc
}
macro copyimg img2_off,img1_off
{
mov eax,dword [img1_off]
mov ebx,dword [img1_off+4]
mul ebx
lea ecx,[eax+2*eax]
lea esi,[img1_off+8]
lea edi,[img2_off+8]
cld
rep movsb
}
macro fullimg img_off,xs,ys,color
{
local cop
mov eax,xs
mov ebx,ys
mov dword [img_off],eax
mov dword [img_off+4],ebx
mul ebx
lea ebp,[eax+2*eax]
mov esi,color
if color eqtype 0
mov ecx,color/65536
else
mov ecx,esi
shr ecx,16
end if
xor edi,edi
cop:
mov word [img_off+8+edi],si
add edi,2
mov byte [img_off+8+edi],cl
inc edi
cmp edi,ebp
jne cop
}
; number of frame in ecx
; callculatin offset of raw data
macro getframeoff num_of_frame,offset_of_animation,offset_of_frame
{
local loo,setpic
mov ebp,num_of_frame ;ecx
mov esi,offset_of_animation;Image
loo:
cmp ebp,0
je setpic
movzx eax,word [esi+4]
movzx ebx,word [esi+6]
mul ebx ;dword [esi+4]
mov ebx,3
mul ebx
add eax,8
add esi,eax
dec ebp
jmp loo
setpic:
mov dword offset_of_frame,esi
}
; BMPTOIMG -Convert BMP format TO IMG format
; (SYNTAX) BMPTOIMG BMP_source_offset,IMG_dest_ofset
; (SAMPLE) View BMPLS.ASM sample.
; ( NOTE ) This is macros is not brake bmp structure! Tested in 32,8,4 bits
bmptoimg_data_area_count=0
macro bmptoimg bmp_load_area,img_dest_area
{
local fileinfo,string,end_bmp,nodix
local converttable,noaddelem,nextbit,convert1bpp,convert4bpp,convert2
local nextelem,convertno32,nomorestring,convert1,nextstring,yespicsize
;local qwe,bmpfn
; convert:
movzx eax,word [bmp_load_area+28]
mul dword [bmp_load_area+18]
add eax,31
shr eax,5
mov dword [bmptoimg_data_area_dwps],eax ;dwps-doublewords per string
shl eax,2
mov dword [bmptoimg_data_area_bps],eax ;bps-bytes per string
cmp dword [bmp_load_area+34],0
jne yespicsize ;if picture size is defined
mul dword [bmp_load_area+22]
mov dword [bmp_load_area+34],eax
yespicsize:
mov ebp,img_dest_area+8
mov eax,bmp_load_area
mov ebx,eax
add ebx, [bmp_load_area+2];file size
inc ebx
mov dword [bmptoimg_soi],ebx ;soi-start of image area for drawing
add eax, [bmp_load_area+10]
mov dword [bmptoimg_data_area_sop],eax ;sop-start of picture in file
add eax, [bmp_load_area+34]
mov dword [bmptoimg_data_area_eop],eax ;eop-end of picture in file
mov eax, [bmp_load_area+18]
lea eax,[eax+2*eax] ;3x pixels in eax
mov edi,dword [bmptoimg_soi] ;initializing
mov esi,dword [bmptoimg_data_area_eop]
sub esi,dword [bmptoimg_data_area_bps]
nextstring:
push edi
push ebp
cmp word [bmp_load_area+28],24
jne convertno32
mov edi,ebp
mov ecx,[bmptoimg_data_area_dwps]
cld
rep movsd
convert1:
pop ebp
pop edi
sub esi,dword [bmptoimg_data_area_bps]
sub esi,dword [bmptoimg_data_area_bps]
cmp esi,dword [bmptoimg_data_area_sop]
jb end_bmp
add edi,eax
add ebp,eax
jmp nextstring
convertno32:
mov ebx,bmp_load_area
add ebx, [bmp_load_area+14]
add ebx,14 ;start of color table
push esi
add esi,dword [bmptoimg_data_area_bps]
mov dword [bmptoimg_data_area_eos],esi
pop esi
nextelem:
push eax
movzx eax,byte [esi]
cmp word [bmp_load_area+28],4
je convert4bpp
cmp word [bmp_load_area+28],1
je convert1bpp
call converttable
convert2:
pop eax
inc esi
cmp esi,dword [bmptoimg_data_area_eos]
jae convert1
add edi,3
add ebp,3
jmp nextelem
convert4bpp:
shl ax,4
shr al,4
push ax
movzx eax,ah
call converttable
add edi,3
add ebp,3
pop ax
movzx eax,al
call converttable
jmp convert2
convert1bpp:
mov ecx,eax
mov edx,7
nextbit:
xor eax,eax
bt ecx,edx
jnc noaddelem
inc eax
noaddelem:
push edx
call converttable
pop edx
dec edx
js convert2
add edi,3
add ebp,3
jmp nextbit
converttable:
shl eax,2
add eax,ebx
mov edx, dword [eax]
; mov dword [edi],edx
mov [ebp],edx
ret
bmptoimg_data_area_count=bmptoimg_data_area_count+1
if bmptoimg_data_area_count = 1
; DATA AREA
bmptoimg_soi dd 0
bmptoimg_data_area_bps dd 0
bmptoimg_data_area_dwps dd 0
bmptoimg_data_area_sop dd 0
bmptoimg_data_area_eop dd 0
bmptoimg_data_area_eos dd 0
end if
end_bmp:
mov eax,dword [bmp_load_area+18]
mov ebx,dword [bmp_load_area+22]
mov dword [img_dest_area],eax
mov dword [img_dest_area+4],ebx
}
; For convert RGB to BGR
COLOR_ORDER equ MENUETOS
macro giftoani gifsrc,imgsrc,num_of_frames
{
local hasharea, ReadGIF, nextblock,_null
local globalColor, img_count, cur_info, img_start
local codesize, compsize, bit_count, CC, EOI, Palette
local block_ofs, table_ptr, gifmacend
local no_gc, block_skip, no_comm, noextblock, uselocal
local setPal, filltable, reinit, cycle, zadd, noinc
local notintable, er, zend, nxt, continue, ex, Gif_skipmap
local Gif_get_sym, shift, nextbl, noblock, loop1, exx
local Gif_output, next, loop2
_null fix 1000h ; 0x1000
; jmp sss
; if defined gif_hash_offset
; else
; hasharea:
; times 4096 dd 0 ;4096
; end if
;sss:
mov esi,gifsrc ;<3B><><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><> <20><><EFBFBD> 䠨<> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov edi,imgsrc ;<3B><><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><> ᯨ᮪ <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
if defined gif_hash_offset
mov eax,gif_hash_offset ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4096*4 <20><><EFBFBD><EFBFBD>
else
mov eax,hasharea ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4096*4 <20><><EFBFBD><EFBFBD>
end if
call ReadGIF
push ecx
pop dword num_of_frames
jmp gifmacend
if defined gif_hash_offset
else
hasharea:
times 4096 dd 0 ;4096
end if
ReadGIF:
push esi edi
mov [table_ptr],eax
mov [cur_info],edi
xor eax,eax
mov [globalColor],eax
mov [img_count],eax
inc eax
cmp dword[esi],'GIF8'
jne er ; signature
mov ecx,[esi+0xa]
inc eax
add esi,0xd
mov edi,esi
bt ecx,7
jnc nextblock
mov [globalColor],esi
call Gif_skipmap
nextblock:
cmp byte[edi],0x21
jne noextblock
inc edi
cmp byte[edi],0xf9 ; Graphic Control Ext
jne no_gc
add edi,7
jmp nextblock
no_gc:
cmp byte[edi],0xfe ; Comment Ext
jne no_comm
inc edi
block_skip:
movzx eax,byte[edi]
lea edi,[edi+eax+1]
cmp byte[edi],0
jnz block_skip
inc edi
jmp nextblock
no_comm:
cmp byte[edi],0xff ; Application Ext
jne nextblock
add edi,13
jmp block_skip
noextblock:
cmp byte[edi],0x2c ; image beginning
jne er
inc [img_count]
inc edi
mov esi,[cur_info]
xchg esi,edi
movsd
movsd
push edi
movzx ecx,word[esi]
inc esi
bt ecx,7
jc uselocal
push [globalColor]
mov edi,esi
jmp setPal
uselocal:
call Gif_skipmap
push esi
setPal:
movzx ecx,byte[edi]
inc ecx
mov [codesize],ecx
dec ecx
pop [Palette]
lea esi,[edi+1]
mov edi,[table_ptr]
xor eax,eax
cld
lodsb ; eax - block_count
add eax,esi
mov [block_ofs],eax
mov [bit_count],8
mov eax,1
shl eax,cl
mov [CC],eax
inc eax
mov [EOI],eax
lea ecx,[eax-1]
mov eax, _null shl 16
filltable:
stosd
inc eax
loop filltable
pop edi
mov [img_start],edi
reinit:
mov edx,[EOI]
inc edx
push [codesize]
pop [compsize]
call Gif_get_sym
cmp eax,[CC]
je reinit
call Gif_output
cycle:
movzx ebx,ax
call Gif_get_sym
cmp eax,edx
jae notintable
cmp eax,[CC]
je reinit
cmp eax,[EOI]
je zend
call Gif_output
zadd:
push eax
mov eax,[table_ptr]
mov [eax+edx*4],ebx
pop eax
cmp edx,0xFFF
jae cycle
inc edx
bsr ebx,edx
cmp ebx,[compsize]
jne noinc
inc [compsize]
noinc:
jmp cycle
notintable:
push eax
mov eax,ebx
call Gif_output
push ebx
movzx eax,bx
call Gif_output
pop ebx eax
jmp zadd
er:
pop edi
jmp ex
zend:
; mov eax,[.cur_info] ; skip offset to next frame
; mov [eax],edi
mov [cur_info],edi
add esi,2
xchg esi,edi
nxt:
cmp byte[edi],0
jnz continue
inc edi
jmp nxt
continue:
cmp byte[edi],0x3b ;read next frame
jne nextblock
xor eax,eax
stosd
mov ecx,[img_count]
ex:
pop edi esi
ret
Gif_skipmap:
; in: ecx - image descriptor, esi - pointer to colormap
; out: edi - pointer to area after colormap
and ecx,111b
inc ecx ; color map size
mov ebx,1
shl ebx,cl
lea ebx,[ebx*2+ebx]
lea edi,[esi+ebx]
ret
Gif_get_sym:
mov ecx,[compsize]
push ecx
xor eax,eax
shift:
ror byte[esi],1
rcr eax,1
dec [bit_count]
jnz loop1
inc esi
cmp esi,[block_ofs]
jb noblock
push eax
xor eax,eax
lodsb
test eax,eax
jnz nextbl
mov eax,[EOI]
sub esi,2
add esp,8
jmp exx
nextbl:
add eax,esi
mov [block_ofs],eax
pop eax
noblock:
mov [bit_count],8
loop1:
loop shift
pop ecx
rol eax,cl
exx:
xor ecx,ecx
ret
Gif_output:
push esi eax edx
mov edx,[table_ptr]
next:
push word[edx+eax*4]
mov ax,word[edx+eax*4+2]
inc ecx
cmp ax,_null
jnz next
shl ebx,16
mov bx,[esp]
loop2:
pop ax
lea esi,[eax+eax*2]
add esi,[Palette]
if COLOR_ORDER eq MENUETOS
mov esi,[esi]
bswap esi
shr esi,8
mov [edi],esi
add edi,3
else
movsw
movsb
end if
loop loop2
pop edx eax esi
ret
globalColor dd 1
img_count dd 1
cur_info dd 1 ; image table pointer
img_start dd 1
codesize dd 1
compsize dd 1
bit_count dd 1
CC dd 1
EOI dd 1
Palette dd 1
block_ofs dd 1
table_ptr dd 1
gifmacend:
}
macro giftoimg gifsrc,imgsrc
{
local hasharea, ReadGIF, nextblock,_null
local globalColor, img_count, cur_info, img_start
local codesize, compsize, bit_count, CC, EOI, Palette
local block_ofs, table_ptr, gifmacend
local no_gc, block_skip, no_comm, noextblock, uselocal
local setPal, filltable, reinit, cycle, zadd, noinc
local notintable, er, zend, nxt, continue, ex, Gif_skipmap
local Gif_get_sym, shift, nextbl, noblock, loop1, exx
local Gif_output, next, loop2
_null fix 0x1000 ; 0x1000
mov esi,gifsrc ;<3B><><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><> <20><><EFBFBD> 䠨<> <20> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
mov edi,imgsrc ;<3B><><EFBFBD><EFBFBD><EFBFBD>⥫<EFBFBD> <20><> ᯨ᮪ <20><><EFBFBD>⨭<EFBFBD><E2A8AD>
if defined gif_hash_offset
mov eax,gif_hash_offset ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4096*4 <20><><EFBFBD><EFBFBD>
else
mov eax,hasharea ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> 4096*4 <20><><EFBFBD><EFBFBD>
end if
call ReadGIF
jmp gifmacend
if defined gif_hash_offset
else
hasharea:
times 4096 dd 0 ;4096
end if
ReadGIF:
push esi edi
mov [table_ptr],eax
mov [cur_info],edi
xor eax,eax
mov [globalColor],eax
mov [img_count],eax
inc eax
cmp dword[esi],'GIF8'
jne er ; signature
mov ecx,[esi+0xa]
inc eax
add esi,0xd
mov edi,esi
bt ecx,7
jnc nextblock
mov [globalColor],esi
call Gif_skipmap
nextblock:
cmp byte[edi],0x21
jne noextblock
inc edi
cmp byte[edi],0xf9 ; Graphic Control Ext
jne no_gc
add edi,7
jmp nextblock
no_gc:
cmp byte[edi],0xfe ; Comment Ext
jne no_comm
inc edi
block_skip:
movzx eax,byte[edi]
lea edi,[edi+eax+1]
cmp byte[edi],0
jnz block_skip
inc edi
jmp nextblock
no_comm:
cmp byte[edi],0xff ; Application Ext
jne nextblock
add edi,13
jmp block_skip
noextblock:
cmp byte[edi],0x2c ; image beginning
jne er
inc [img_count]
inc edi
mov esi,[cur_info]
xchg esi,edi
; movsd
; movsd
mov bp,word[esi+4]
movzx ebx,bp
mov [edi],ebx
mov bp,word[esi+6]
movzx ebx,bp
mov [edi+4],ebx
add edi,8
add esi,8
push edi
movzx ecx,word[esi]
inc esi
bt ecx,7
jc uselocal
push [globalColor]
mov edi,esi
jmp setPal
uselocal:
call Gif_skipmap
push esi
setPal:
movzx ecx,byte[edi]
inc ecx
mov [codesize],ecx
dec ecx
pop [Palette]
lea esi,[edi+1]
mov edi,[table_ptr]
xor eax,eax
cld
lodsb ; eax - block_count
add eax,esi
mov [block_ofs],eax
mov [bit_count],8
mov eax,1
shl eax,cl
mov [CC],eax
inc eax
mov [EOI],eax
lea ecx,[eax-1]
mov eax, _null shl 16
filltable:
stosd
inc eax
loop filltable
pop edi
mov [img_start],edi
reinit:
mov edx,[EOI]
inc edx
push [codesize]
pop [compsize]
call Gif_get_sym
cmp eax,[CC]
je reinit
call Gif_output
cycle:
movzx ebx,ax
call Gif_get_sym
cmp eax,edx
jae notintable
cmp eax,[CC]
je reinit
cmp eax,[EOI]
je zend
call Gif_output
zadd:
push eax
mov eax,[table_ptr]
mov [eax+edx*4],ebx
pop eax
cmp edx,0xFFF
jae cycle
inc edx
bsr ebx,edx
cmp ebx,[compsize]
jne noinc
inc [compsize]
noinc:
jmp cycle
notintable:
push eax
mov eax,ebx
call Gif_output
push ebx
movzx eax,bx
call Gif_output
pop ebx eax
jmp zadd
er:
pop edi
jmp ex
zend:
; mov eax,[.cur_info] ; skip offset to next frame
; mov [eax],edi
mov [cur_info],edi
add esi,2
xchg esi,edi
nxt:
cmp byte[edi],0
jnz continue
inc edi
jmp nxt
continue:
; cmp byte[edi],0x3b ;read next frame
; jne nextblock
xor eax,eax
stosd
mov ecx,[img_count]
ex:
pop edi esi
ret
Gif_skipmap:
; in: ecx - image descriptor, esi - pointer to colormap
; out: edi - pointer to area after colormap
and ecx,111b
inc ecx ; color map size
mov ebx,1
shl ebx,cl
lea ebx,[ebx*2+ebx]
lea edi,[esi+ebx]
ret
Gif_get_sym:
mov ecx,[compsize]
push ecx
xor eax,eax
shift:
ror byte[esi],1
rcr eax,1
dec [bit_count]
jnz loop1
inc esi
cmp esi,[block_ofs]
jb noblock
push eax
xor eax,eax
lodsb
test eax,eax
jnz nextbl
mov eax,[EOI]
sub esi,2
add esp,8
jmp exx
nextbl:
add eax,esi
mov [block_ofs],eax
pop eax
noblock:
mov [bit_count],8
loop1:
loop shift
pop ecx
rol eax,cl
exx:
xor ecx,ecx
ret
Gif_output:
push esi eax edx
mov edx,[table_ptr]
next:
push word[edx+eax*4]
mov ax,word[edx+eax*4+2]
inc ecx
cmp ax,_null
jnz next
shl ebx,16
mov bx,[esp]
loop2:
pop ax
lea esi,[eax+eax*2]
add esi,[Palette]
if COLOR_ORDER eq MENUETOS
mov esi,[esi]
bswap esi
shr esi,8
mov [edi],esi
add edi,3
else
movsw
movsb
end if
loop loop2
pop edx eax esi
ret
globalColor dd 1
img_count dd 1
cur_info dd 1 ; image table pointer
img_start dd 1
codesize dd 1
compsize dd 1
bit_count dd 1
CC dd 1
EOI dd 1
Palette dd 1
block_ofs dd 1
table_ptr dd 1
gifmacend:
}
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