From 47085799541fd2d65782bdbbebf0a942581aa9e7 Mon Sep 17 00:00:00 2001 From: "Evgeny Grechnikov (Diamond)" Date: Mon, 23 Oct 2006 12:54:00 +0000 Subject: [PATCH] MV: support for RLE8 compression and files with reversed rows order (negative height) git-svn-id: svn://kolibrios.org@190 a494cfbc-eb01-0410-851d-a64ba20cac60 --- programs/media/mv/trunk/mv.asm | 314 +++++++++++++++++++-------------- 1 file changed, 181 insertions(+), 133 deletions(-) diff --git a/programs/media/mv/trunk/mv.asm b/programs/media/mv/trunk/mv.asm index c477fe2406..3ea326543e 100644 --- a/programs/media/mv/trunk/mv.asm +++ b/programs/media/mv/trunk/mv.asm @@ -1,5 +1,6 @@ ; Picture browser by lisovin@26.ru ; Modified by Ivan Poddubny - v.0.3 +; Modified by Diamond - v.0.4 ; Compile with FASM for Menuet ;****************************************************************************** @@ -194,6 +195,10 @@ load_image: int 0x40 mov eax,[I_END+18] mov ebx,[I_END+22] + test ebx, ebx + jns @f + neg ebx +@@: add eax,20 cmp eax,210 jae @f @@ -223,9 +228,12 @@ load_image: jne nodrawimage mov eax,7 mov ebx,[soi] - mov ecx,[I_END+18] - shl ecx,16 - add ecx,[I_END+22] + mov ecx, dword [I_END+18-2] + mov cx, [I_END+22] + test cx, cx + jns @f + neg cx +@@: mov edx,10*65536+50 int 0x40 nodrawimage: @@ -259,126 +267,171 @@ load_image: @@: ret - convert: - movzx eax,word [I_END+28] - mul dword [I_END+18] -; mov ebx,32 -; div ebx -; test edx,edx -; je noaddword -; inc eax -; noaddword: - add eax, 31 - shr eax, 5 - mov [dwps],eax ;dwps-doublewords per string - shl eax,2 - mov [bps],eax ;bps-bytes per string +convert: + mov ecx, I_END + add ecx, [ecx+2] + mov [soi], ecx + mov ebp, [I_END+18] + lea ebp, [ebp*3] ; ebp = size of output scanline + mov eax, [I_END+22] + dec eax + mul ebp + add eax, ecx + mov edi, eax ; edi points to last scanline + mov esi, I_END + add esi, [esi+10] + mov ebx, I_END+54 + mov edx, [I_END+22] + lea eax, [ebp*2] + mov [delta], eax + test edx, edx + jz .ret + jns @f + neg edx + and [delta], 0 + mov edi, ecx +@@: + movzx eax, word [I_END+28] + cmp eax, 24 + jz convert24 + cmp eax, 8 + jz convert8 + cmp eax, 4 + jz convert4 + dec eax + jz convert1 +.ret: + ret +convert24: + mov ecx, ebp + rep movsb + sub edi, [delta] + mov eax, ebp + neg eax + and eax, 3 + add esi, eax + dec edx + jnz convert24 + ret +convert8: + push edi + add [esp], ebp +.loopi: + xor eax, eax + lodsb + cmp dword [I_END+30], 1 + jnz .nocompressed +.compressed: + mov ecx, eax + jecxz .special + lodsb + mov eax, [ebx+eax*4] +@@: + call putpixel + loop @b + jmp .loopi +.nocompressed: + mov eax, [ebx+eax*4] + call putpixel +.loopicont: + cmp edi, [esp] + jnz .loopi +.next: + pop edi + sub edi, [delta] + mov eax, ebp + and eax, 3 + add esi, eax + dec edx + jnz convert8 + ret +.special: + lodsb + test al, al + jz .next + cmp al, 2 + jbe .end + mov ecx, eax + push ecx +@@: + xor eax, eax + lodsb + mov eax, [ebx+eax*4] + call putpixel + loop @b + pop ecx + and ecx, 1 + add esi, ecx + jmp .loopi +.end: + pop edi + ret +convert4: + push edi + add [esp], ebp +.loopi: + xor eax, eax + lodsb + shr eax, 4 + mov eax, [ebx+eax*4] + call putpixel + cmp edi, [esp] + jz .loopidone + mov al, [esi-1] + and eax, 0xF + mov eax, [ebx+eax*4] + stosd + dec edi + cmp edi, [esp] + jnz .loopi +.loopidone: + pop edi + sub edi, [delta] + call align_input + dec edx + jnz convert4 + ret +convert1: + push edi + add [esp], ebp +.loopi: + lodsb + mov ecx, 8 +.loopii: + add al, al + push eax + setc al + movzx eax, al + mov eax, [ebx+eax*4] + call putpixel + pop eax + cmp edi, [esp] + loopnz .loopii + jnz .loopi + pop edi + sub edi, [delta] + call align_input + dec edx + jnz convert1 + ret - cmp dword [I_END+34],0 - jne yespicsize ;if picture size is defined - mul dword [I_END+22] - mov dword [I_END+34],eax +align_input: + push esi + sub esi, I_END + sub esi, [I_END+10] + neg esi + and esi, 3 + add [esp], esi + pop esi + ret - yespicsize: - mov eax,I_END - push eax - add eax, [I_END+2];file size - inc eax - mov [soi],eax ;soi-start of image area for drawing - pop eax - add eax, [I_END+10] - mov [sop],eax ;sop-start of picture in file - add eax, [I_END+34] - mov [eop],eax ;eop-end of picture in file - mov eax, [I_END+18] - mov ebx,3 - mul ebx ;3x pixels in eax - - mov edi,[soi] ;initializing - mov esi,[eop] - sub esi,[bps] - - - nextstring: - push edi - cmp word [I_END+28],24 - jne convertno32 - - mov ecx,[dwps] - cld - rep movsd - convert1: - pop edi - sub esi,[bps] - sub esi,[bps] - cmp esi,[sop] - jb nomorestring - add edi,eax - jmp nextstring - - nomorestring: - ret - - convertno32: - mov ebx,I_END - add ebx, [I_END+14] - add ebx,14 ;start of color table - push esi - add esi,[bps] - mov [eos],esi - pop esi - nextelem: - push eax - movzx eax,byte [esi] - cmp word [I_END+28],4 - je convert4bpp - cmp word [I_END+28],1 - je convert1bpp - call converttable - convert2: - pop eax - inc esi - cmp esi,[eos] - jae convert1 - add edi,3 - jmp nextelem - - convert4bpp: - shl ax,4 - shr al,4 - push ax - movzx eax,ah - call converttable - add edi,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 - cmp edx,0xffffffff - je convert2 - add edi,3 - jmp nextbit - - converttable: - shl eax,2 - add eax,ebx - mov edx, [eax] - mov dword [edi],edx - ret +putpixel: + push eax + stosw + shr eax, 16 + stosb + pop eax + ret ; ********************************************* ; ******* WINDOW DEFINITIONS AND DRAW ******** @@ -440,24 +493,13 @@ draw_window: ; DATA AREA labelt: - db 'MeView v.0.3' + db 'MeView v.0.4' lsz buttext,\ en, ' FILE OPEN INFO BGRD',\ ru, ' ',\ de, 'DATEI OEFNEN INFO HGRD' -status dd 0 ;bit0=1 if file thread is created -bps dd 0 -dwps dd 0 -soi dd 0 -sop dd 0 -eop dd 0 -eos dd 0 -process dd 0 - -bWasDraw db 0 - thread1: ; start of thread1 call draw_window1 @@ -967,6 +1009,12 @@ draw_window3: ; DATA AREA +status dd 0 ;bit0=1 if file thread is created +soi dd 0 +delta dd 0 +process dd 0 + +bWasDraw db 0 vflag: db 'x' bgrmode: dd 1