图片阅览器

30_day/Makefile

@@ -23,7 +23,7 @@ haribote.img : haribote/ipl20.bin haribote/haribote.sys Makefile \
 		sosu/sosu.hrb sosu2/sosu2.hrb sosu3/sosu3.hrb \
 		type/type.hrb iroha/iroha.hrb chklang/chklang.hrb \
 		notrec/notrec.hrb bball/bball.hrb invader/invader.hrb \
-		calc/calc.hrb tview/tview.hrb mmlplay/mmlplay.hrb
+		calc/calc.hrb tview/tview.hrb mmlplay/mmlplay.hrb gview/gview.hrb
 	$(EDIMG)   imgin:../z_tools/fdimg0at.tek \
 		wbinimg src:haribote/ipl20.bin len:512 from:0 to:0 \
 		copy from:haribote/haribote.sys to:@: \
@@ -62,6 +62,9 @@ haribote.img : haribote/ipl20.bin haribote/haribote.sys Makefile \
 		copy from:mmldata/fujisan.mml to:@: \
 		copy from:mmldata/daigo.mml to:@: \
 		copy from:mmldata/daiku.mml to:@: \
+		copy from:gview/gview.hrb to:@: \
+		copy from:pictdata/fujisan.jpg to:@: \
+		copy from:pictdata/night.bmp to:@: \
 		copy from:nihongo/nihongo.fnt to:@: \
 		imgout:haribote.img
 
@@ -108,6 +111,7 @@ full :
 	$(MAKE) -C calc
 	$(MAKE) -C tview
 	$(MAKE) -C mmlplay
+	$(MAKE) -C gview
 	$(MAKE) haribote.img
 
 run_full :
@@ -162,6 +166,7 @@ clean_full :
 	$(MAKE) -C calc			clean
 	$(MAKE) -C tview		clean
 	$(MAKE) -C mmlplay		clean
+	$(MAKE) -C gview		clean
 
 src_only_full :
 	$(MAKE) -C haribote		src_only
@@ -195,6 +200,7 @@ src_only_full :
 	$(MAKE) -C calc			src_only
 	$(MAKE) -C tview		src_only
 	$(MAKE) -C mmlplay		src_only
+	$(MAKE) -C gview		src_only
 	-$(DEL) haribote.img
 
 refresh :

30_day/gview/!cons_9x.bat

@@ -0,0 +1 @@
+command

30_day/gview/!cons_nt.bat

@@ -0,0 +1 @@
+cmd.exe

30_day/gview/Makefile

@@ -0,0 +1,90 @@
+APP      = gview
+STACK    = 4480k
+MALLOC   = 0k
+
+TOOLPATH = ../../z_tools/
+INCPATH  = ../../z_tools/haribote/
+APILIBPATH   = ../apilib/
+HARIBOTEPATH = ../haribote/
+
+MAKE     = $(TOOLPATH)make.exe -r
+NASK     = $(TOOLPATH)nask.exe
+CC1      = $(TOOLPATH)cc1.exe -I$(INCPATH) -I../ -Os -Wall -quiet
+GAS2NASK = $(TOOLPATH)gas2nask.exe -a
+OBJ2BIM  = $(TOOLPATH)obj2bim.exe
+MAKEFONT = $(TOOLPATH)makefont.exe
+BIN2OBJ  = $(TOOLPATH)bin2obj.exe
+BIM2HRB  = $(TOOLPATH)bim2hrb.exe
+BIM2BIN  = $(TOOLPATH)bim2bin.exe
+RULEFILE = ../haribote.rul
+EDIMG    = $(TOOLPATH)edimg.exe
+IMGTOL   = $(TOOLPATH)imgtol.com
+GOLIB    = $(TOOLPATH)golib00.exe 
+COPY     = copy
+DEL      = del
+
+#默认动作
+
+default :
+	$(MAKE) $(APP).hrb
+
+#文件生成规则
+
+$(APP).bim : $(APP).obj bmp.obj jpeg.obj $(APILIBPATH)apilib.lib Makefile
+	$(OBJ2BIM) @$(RULEFILE) out:$(APP).bim map:$(APP).map stack:$(STACK) \
+		$(APP).obj jpeg.obj bmp.obj $(APILIBPATH)apilib.lib
+
+haribote.img : ../haribote/ipl20.bin ../haribote/haribote.sys $(APP).hrb \
+		Makefile
+	$(EDIMG)   imgin:../../z_tools/fdimg0at.tek \
+		wbinimg src:../haribote/ipl20.bin len:512 from:0 to:0 \
+		copy from:../haribote/haribote.sys to:@: \
+		copy from:$(APP).hrb to:@: \
+		copy from:../nihongo/nihongo.fnt to:@: \
+		imgout:haribote.img
+
+# 其他指令
+
+%.gas : %.c ../apilib.h Makefile
+	$(CC1) -o $*.gas $*.c
+
+%.nas : %.gas Makefile
+	$(GAS2NASK) $*.gas $*.nas
+
+%.obj : %.nas Makefile
+	$(NASK) $*.nas $*.obj $*.lst
+
+%.org : %.bim Makefile
+	$(BIM2HRB) $*.bim $*.org $(MALLOC)
+
+%.hrb : %.org Makefile
+	$(BIM2BIN) -osacmp in:$*.org out:$*.hrb
+
+# 运行程序
+
+run :
+	$(MAKE) haribote.img
+	$(COPY) haribote.img ..\..\z_tools\qemu\fdimage0.bin
+	$(MAKE) -C ../../z_tools/qemu
+
+full :
+	$(MAKE) -C $(APILIBPATH)
+	$(MAKE) $(APP).hrb
+
+run_full :
+	$(MAKE) -C $(APILIBPATH)
+	$(MAKE) -C ../haribote
+	$(MAKE) run
+
+clean :
+	-$(DEL) *.lst
+	-$(DEL) gview.obj
+	-$(DEL) jpeg.obj
+	-$(DEL) *.map
+	-$(DEL) *.bim
+	-$(DEL) *.org
+	-$(DEL) haribote.img
+
+src_only :
+	$(MAKE) clean
+	-$(DEL) $(APP).hrb

30_day/gview/bmp.nasm

@@ -0,0 +1,646 @@
+; BMP decode routine by I.Tak. 2003
+
+section .text align=1
+[bits 32]
+;BMP File Structure (I can't understand MS.)
+
+	struc BMP
+		;FILE HEADER
+.fType:		resw 1	;BM
+.fSize:		resd 1	;whole file size
+		resd 1	;reserved
+.fOffBits:	resd 1	;offset from file top to image
+		;INFO HEADER
+.iSize:		resd 1	;INFO HEADER size
+.iWidth:	resd 1	;Image Width in pixels
+.iHeight:	resd 1	;Image Height in pixels
+.iPlanes:	resw 1	;must be 1
+.iBitCount:	resw 1	;BitPerPixel 1, 4, 8, 24 (and 15,16 for new OS/2 ?)
+.iCompression:	resd 1	;Compress Type. 0 for none, then SizeImage=0
+.iSizeImage:	resd 1	;Image Size(compressed)
+.iXPPM:		resd 1	;X Pixel Per Meter
+.iYPPM:		resd 1
+.iClrUsed:	resd 1	;Number of used ColorQuad (0 for whole Quad)
+.iClrImportant:	resd 1	;Number of Important ColorQuad.
+	endstruc
+
+	struc BMPOS2
+		;FILE HEADER
+.fType:		resw 1	;BM
+.fSize:		resd 1	;whole file size
+		resd 1	;reserved
+.fOffBits:	resd 1	;offset from file top to image
+		;CORE HEADER
+.iSize:		resd 1	;CORE HEADER size
+.iWidth:	resw 1	;Image Width in pixels
+.iHeight:	resw 1	;Image Height in pixels
+.iPlanes:	resw 1	;must be 1
+.iBitCount:	resw 1	;BitPerPixel 1, 4, 8, 24 (and 15,16 for new OS/2 ?)
+	endstruc
+
+; B/W bmp can also have palettes. The first for 0, second for 1.
+
+	struc CQuad
+.b:	resb 1
+.g:	resb 1
+.r:	resb 1
+	resb 1	;reserved
+	endstruc
+
+
+%if 0
+int info_BMP(struct DLL_STRPICENV *env, int *info, int size, UCHAR *fp);
+/* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>1 (<EFBFBD><EFBFBD>0?), <EFBFBD><EFBFBD><EFBFBD>Ԥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0 */
+int decode0_BMP(struct DLL_STRPICENV *env, int size, UCHAR *fp,
+                int b_type, UCHAR *buf, int skip);
+/* <EFBFBD><EFBFBD><EFBFBD>顼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ɤ<EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȥꤢ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0<EFBFBD>ˤ<EFBFBD><EFBFBD>Ƥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> */
+env<EFBFBD><EFBFBD>64KB<EFBFBD>Υ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ꥢ<EFBFBD>Ǥ<EFBFBD><EFBFBD>롣<EFBFBD><EFBFBD>Ƭ8dw<EFBFBD><EFBFBD><EFBFBD>֤<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѤˤʤäƤ<EFBFBD><EFBFBD>롣
+<EFBFBD><EFBFBD>ȯ<EFBFBD><EFBFBD><EFBFBD>餷<EFBFBD><EFBFBD>, <EFBFBD><EFBFBD><EFBFBD>󥹥<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ѿ<EFBFBD>Ū<EFBFBD>ˤϻȤ<EFBFBD><EFBFBD>ʤ<EFBFBD><EFBFBD>褦<EFBFBD><EFBFBD><EFBFBD><EFBFBD>JPEG_init<EFBFBD><EFBFBD>
+base_img<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Τ<EFBFBD>decode<EFBFBD>ΤȤ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ǥ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ȼפ<EFBFBD><EFBFBD><EFBFBD>
+%endif
+
+[absolute 0]	;nask<73>ʤ<EFBFBD>[section .bss] org 0 <20><><EFBFBD><EFBFBD> win32<33><32><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ᤫ
+bmpinfo:
+.regs:		resd 4
+.reteip:	resd 1
+.env:		resd 1
+.info:		resd 1
+.size:		resd 1
+.module:	resd 1
+[absolute 0]
+info:
+.type:		resd 1	;1 for BMP, 2 for JPEG
+		resd 1	;0
+.width:		resd 1
+.height:	resd 1
+[section .text]
+[global  _info_BMP]
+_info_BMP:
+	push ebx
+	push ebp
+	push esi
+	push edi
+	mov esi, [esp+bmpinfo.module]
+	mov eax, [esp+bmpinfo.size]
+	call bmpHeader
+	test edi, edi
+	jz .ret
+	mov esi, [esp+bmpinfo.info]
+	mov [esi+info.width], eax
+	mov [esi+info.height], ecx
+	mov [esi+info.type], edi	;=1
+	dec edi
+	mov [esi+info.type+4], edi	;=0
+	inc edi
+.ret:	mov eax, edi
+	pop edi
+	pop esi
+	pop ebp
+	pop ebx
+	ret
+
+;in: esi=module, eax=size
+;ret:eax=width, ecx=hegiht, edx=paletteSize, ebx=palette
+;    ebp=bpp, esi=endOfImage, edi=successFlag
+bmpHeader:
+	lea edx, [esi+eax]		;moduleEnd
+	xor edi, edi
+	push edx
+	xor edx, edx
+
+	cmp eax, byte BMP.iSize+4
+	jbe ..@ret			;<3B><><EFBFBD>Ѥ<EFBFBD><D1A4>Ƥ<EFBFBD><C6A4>ޤ<EFBFBD>
+	cmp word[esi],'BM'
+	je .notMAC
+	sub esi, byte -128
+	add eax, byte -128
+	pop ebx
+	push eax
+	cmp eax, byte BMP.iSize+4
+..@ret:	jbe .ret
+	cmp word[esi], 'BM'
+	jne .ret
+.notMAC:
+	;;MS,OS/2 <20>ե<EFBFBD><D5A5><EFBFBD><EFBFBD>ޥåȳ<C3A5>ǧ
+	mov ecx, [esi +BMP.iSize]
+	cmp ecx, byte 12			;OS/2 format.
+	jne .MS
+	  cmp eax, byte BMPOS2_size
+	  jbe .ret				;core<72>إå<D8A5><C3A5>ʤ<EFBFBD>
+	  lea ebx, [esi+ecx+14]			;palette
+	  movzx eax, word[esi+BMPOS2.iWidth]	;width
+	  movzx ecx, word[esi+BMPOS2.iHeight]	;height
+	  movzx ebp, word[esi+BMPOS2.iBitCount]	;bpp
+	  mov dl, 3				;paletteSize
+	jmp short .endif
+.MS:	  cmp eax, byte BMP_size
+	  jbe .ret				;info<66>إå<D8A5><C3A5>ʤ<EFBFBD>
+	  lea ebx, [esi+ecx+14]
+	  sub ecx,byte 40
+	  jne .ret				;unknownFormat
+	  cmp ecx, [esi+BMP.iCompression]
+	  jne .ret				;Compressed.
+	  mov   eax, [esi+BMP.iWidth]		;width
+	  mov   ecx, [esi+BMP.iHeight]		;height
+	  movzx ebp, word[esi +BMP.iBitCount]	;bpp
+	  mov dl, 4				;paletteSize
+.endif:
+	add esi, [esi +BMP.fOffBits]
+
+	;size<7A><65><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>height<68><74><EFBFBD><EFBFBD><EFBFBD>äƤǤ 
+	;<3B>ɤ<EFBFBD><C9A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>٤<EFBFBD><D9A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ϥ<EFBFBD><CFA5>顼
+	push edx
+	push eax
+	mul ebp				;eax=width*bpp
+	add eax, byte 7
+	shr eax, 3			;lineSizeWithoutPudding
+	mov edx, eax
+	add eax, byte 3			;size<1GB<47><42><EFBFBD><EFBFBD><EFBFBD>ꤷ<EFBFBD><EAA4B7>edx<64><78>̵<EFBFBD> 
+	and al, -4			;lineSizeWithPudding
+	sub edx, eax			;-puddingSize
+	push edx
+	mul ecx
+	pop edx
+	add esi, eax
+	add esi, edx			;<3B>ǽ<EFBFBD><C7BD>ԤκǸ<CEBA><C7B8>ˤ<EFBFBD>pudding<6E><67><EFBFBD>ʤ<EFBFBD><CAA4>ȸ<EFBFBD><C8B8><EFBFBD><EFBFBD>٤<EFBFBD>
+	cmp esi, [esp+8]		;endOfModule
+	pop eax
+	ja .ret2
+	sub esi, edx			;esi=endOfImage
+	inc edi				;succeeded!
+.ret2:	pop edx
+.ret:	add esp, byte 4
+	ret
+
+;***************************************************************
+; <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ͥ<EFBFBD><CDA5><EFBFBD>Ǻ<EFBFBD><C7BA>äƤ<C3A4><C6A4>뤬, ®<><C2AE>ͥ<EFBFBD><CDA5><EFBFBD>Ǻ<EFBFBD><C7BA>ä<EFBFBD><C3A4>ΤΤ<CEA4><CEA4>ꤤ<EFBFBD><EAA4A4><EFBFBD><EFBFBD><EFBFBD>⡣
+; <20>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ι<EFBFBD>®<EFBFBD>⡼<EFBFBD>ɤΤߺ<CEA4><DFBA>äƤ<C3A4><C6A4> 
+
+[absolute 0]
+decode:
+.regs:		resd 4
+.reteip:	resd 1
+.env:		resd 1
+.size:		resd 1
+.module:	resd 1
+.outputType:	resd 1
+.dest:		resd 1
+.skip:		resd 1
+[section .text]
+[global _decode0_BMP]
+_decode0_BMP:
+	push ebx
+	push ebp
+	push esi
+	push edi
+	mov esi, [esp+decode.module]
+	mov eax, [esp+decode.size]
+	call bmpHeader
+	;ret:eax=width, ecx=hegiht, edx=paletteSize, ebx=palette
+	;    ebp=bpp, esi=endOfImage, edi=successFlag
+	test edi,edi
+	jz .error
+	mov edi, [esp+decode.dest]
+	push dword[esp+decode.outputType]
+	push dword[esp+4+decode.skip]
+	push ecx			;height
+	push eax
+	push edx
+	mul ebp
+	add eax, byte 31
+	shr eax, 3
+	and al, -4
+	push eax
+	mov edx, ebp
+	mov ebp, esp
+	call bmp2beta			;ecx!=0 for error
+	add esp, byte bb.size
+	mov eax, ecx
+	test ecx, ecx
+	jz .ret
+.error:	push byte 1
+	pop eax
+.ret:	pop edi
+	pop esi
+	pop ebp
+	pop ebx
+	ret
+
+[absolute -4*2]
+bb:
+.col0:		resd 1	;bpp1<70>ǻȤ<C7BB>
+.reteip:	resd 1
+.sw:		resd 1	;byte
+.paletteSize:	resd 1	;byte
+.w:		resd 1	;pixel
+.h:		resd 1
+.s:		resd 1
+.t:		resd 1
+.size: equ $-$$
+[section .text]
+;eax=?, ecx=height, edx=bpp, ebx=palette
+;ebp=bb, esi=endOfImage, edi=dest
+bmp2beta:
+	mov al, [ebp+bb.t]
+	and al, 0x7f
+	cmp al, 2
+	je near buf16
+	cmp al, 4
+	je buf32
+	mov ecx, esp		;!=0
+	ret
+;===============================================================
+;	Buffer mode 4
+;===============================================================
+buf32:
+	dec edx
+	je near .bpp1
+	sub edx, byte 4-1
+	je .bpp4
+	sub edx, byte 8-4
+	je .bpp8
+	sub edx, byte 24-8
+	je .bpp24
+	mov ecx, esp		;!=0
+	ret
+;---------------------------------------------------
+;	24bpp BMP to 4byte bufer
+;---------------------------------------------------
+.bpp24:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+	;bb.w=width(pixel), bb.s=skipByte, bb.h=height
+	;bb.t=outputType, bb.sw=sourceWidthByte
+
+	.do24.1:
+	  sub esi, [ebp+bb.sw]	;esi=startOfLine
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do24.2:
+	    mov al, [esi]
+	     mov [edi+3], dl
+	    mov [edi], al
+	     mov al, [esi+1]
+	    mov [edi+1], al
+	     mov al, [esi+2]
+	    mov [edi+2], al
+	     add esi, byte 3
+	    add edi, byte 4
+	     dec ecx
+	  jnz .do24.2
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do24.1
+	ret
+
+;---------------------------------------------------
+;	8bpp BMP to 4byte buffer
+;---------------------------------------------------
+.bpp8:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov dl, 255
+	mov eax, [ebp+bb.paletteSize]
+	sub ebx, eax
+	shl eax, 8
+	add ebx, eax		;ebx += paletteSize*255
+	.do8.1:
+	  mov eax, [ebx]
+	  sub ebx, [ebp+bb.paletteSize]
+	  and eax, 0x00ffffff
+	  dec edx
+	  push eax
+	jns .do8.1
+
+	.do8.2:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do8.3:
+	    xor eax, eax
+	     add edi, byte 4
+	    mov al, [esi]
+	     inc esi
+	    ;AGI stole
+	    mov eax, [esp+eax*4+8]
+	     dec ecx
+	    mov [edi-4], eax
+	  jnz .do8.3
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do8.2
+	add esp, 256*4		;palette
+	ret
+
+;---------------------------------------------------
+;	4bpp BMP to 4byte buffer
+;---------------------------------------------------
+.bpp4:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov dl, 16
+	mov eax, [ebp+bb.paletteSize]
+	sub ebx, eax
+	shl eax, 4
+	add ebx, eax			;ebx+=eax*15
+	.do4.1
+	  mov eax, [ebx]
+	  sub ebx, [ebp+bb.paletteSize]
+	  and eax, 0x00ffffff
+	  dec edx
+	  push eax
+	jnz .do4.1
+
+	.do4.2:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do4.3:
+	    xor edx, edx
+	     mov al, [esi]
+	    mov dl, al
+	     inc esi
+	    shr dl, 4
+	     and eax, byte 15
+	    add edi, byte 4
+	     dec ecx
+	    mov edx, [esp+edx*4+8]
+	     mov eax, [esp+eax*4+8]
+	    mov [edi-4], edx
+	     jz .wend
+	    mov [edi], eax
+	     add edi, byte 4
+	    dec ecx
+	  jnz .do4.3
+.wend:	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do4.2
+	add esp, 16*4		;palette
+	ret
+
+;---------------------------------------------------
+;	1bpp BMP to 4byte buffer
+;---------------------------------------------------
+.bpp1:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov eax, [ebx]
+	add ebx, [ebp+bb.paletteSize]
+	and eax, 0x00ffffff
+	mov ebx, [ebx]
+	and ebx, 0x00ffffff
+	xor ebx, eax
+	;push ebx
+	push eax
+
+	.do1.1:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do1.2:
+	    mov dl, [esi]
+	     inc esi
+	    push esi
+	     mov esi, 8
+	    .do1.3:
+	      add edi, byte 4
+	       add dl, dl
+	      sbb eax, eax
+	      and eax, ebx
+	      xor eax, [ebp+bb.col0]
+	       dec ecx
+	      mov [edi-4], eax
+	       jz .wend1bpp
+	      dec esi
+	    jnz .do1.3
+	    pop esi
+	  jmp short .do1.2
+.wend1bpp:pop ecx
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do1.1
+	pop eax
+	ret
+
+;===============================================
+;	Buffer mode 2byte
+;===============================================
+buf16:
+	dec edx
+	je near .bpp1
+	sub edx, byte 4-1
+	je near .bpp4
+	sub edx, byte 8-4
+	je .bpp8
+	sub edx, byte 24-8
+	je .bpp24
+	mov ecx, esp
+	ret
+;---------------------------------------------------
+;	24bpp BMP to 2byte bufer
+;---------------------------------------------------
+.bpp24:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	.do24.1:
+	  sub esi, [ebp+bb.sw]	;esi=startOfLine
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do24.2:
+	    mov al, [esi+2]
+	    shl eax, 16
+	    mov ax, [esi]
+	     add esi, byte 3
+	    ;<3B><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> eax=24bitColor, edx=work, ecx=counter, ebx=work
+	    ;<3B><><EFBFBD>礵<EFBFBD><E7A4B5><EFBFBD>μ<EFBFBD>̣<EFBFBD><CCA3><EFBFBD>פä<D7A4><C3A4>롼<EFBFBD><EBA1BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>äƤ<C3A4><C6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>褷(<28><>
+	    ;<3B><><EFBFBD><EFBFBD><EFBFBD>Ȼ<EFBFBD><C8BB>롼<EFBFBD><EBA1BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>äƤ<C3A4><C6A4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>褷
+	    shr ah, 2		;???????? RRRRRrrr 00GGGGGG BBBBBbbb 
+	     inc edi
+	    shr eax, 3		;000????? ???RRRRR rrr00GGG GGGBBBBB
+	    shl ax, 5		;000????? ???RRRRR GGGGGGBB BBB00000
+	     inc edi
+	    shr eax, 5		;00000000 ???????? RRRRRGGG GGGBBBBB
+	     dec ecx
+	    mov [edi-2], ax
+	  jnz .do24.2
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do24.1
+	ret
+
+;---------------------------------------------------
+;	8bpp BMP to 2byte buffer
+;---------------------------------------------------
+.bpp8:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov dl, 255
+	mov eax, [ebp+bb.paletteSize]
+	sub ebx, eax
+	shl eax, 8
+	add ebx, eax		;ebx += paletteSize*255
+	.do8.1:
+	  mov eax, [ebx]
+	  sub ebx, [ebp+bb.paletteSize]
+	  call .paletteConv
+	  dec edx
+	  push eax
+	jns .do8.1
+
+	.do8.2:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do8.3:
+	    xor eax, eax
+	     add edi, byte 2
+	    mov al, [esi]
+	     inc esi
+	    ;AGI stole
+	    mov eax, [esp+eax*4+8]
+	     dec ecx
+	    mov [edi-2], ax
+	  jnz .do8.3
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do8.2
+	add esp, 256*4		;palette
+	ret
+
+;---------------------------------------------------
+;	4bpp BMP to 2byte buffer
+;---------------------------------------------------
+.bpp4:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov dl, 16
+	mov eax, [ebp+bb.paletteSize]
+	sub ebx, eax
+	shl eax, 4
+	add ebx, eax			;ebx+=eax*15
+	.do4.1:
+	  mov eax, [ebx]
+	  sub ebx, [ebp+bb.paletteSize]
+	  call .paletteConv
+	  dec edx
+	  push eax
+	jnz .do4.1
+
+	.do4.2:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do4.3:
+	    xor edx, edx
+	     mov al, [esi]
+	    mov dl, al
+	     inc esi
+	    shr dl, 4
+	     and eax, byte 15
+	    add edi, byte 2
+	     dec ecx
+	    mov edx, [esp+edx*4+8]
+	     mov eax, [esp+eax*4+8]
+	    mov [edi-2], dx
+	     jz .wend
+	    mov [edi], ax
+	     add edi, byte 2
+	    dec ecx
+	  jnz .do4.3
+.wend:	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do4.2
+	add esp, 16*4		;palette
+	ret
+
+;---------------------------------------------------
+;	1bpp BMP to 2byte buffer
+;---------------------------------------------------
+.bpp1:
+	;ecx=height, edx=0, ebx=palette
+	;esi=endOfImage, edi=destinationBuffer
+
+	;pallete<74>Ѵ<EFBFBD>
+	mov eax, [ebx]
+	add ebx, [ebp+bb.paletteSize]
+	call .paletteConv
+	push eax
+	mov eax, [ebx]
+	call .paletteConv
+	pop ebx
+	xchg eax, ebx
+	xor ebx, eax
+	push eax
+
+	.do1.1:
+	  sub esi, [ebp+bb.sw]	;esi=firstLineStart
+	  push ecx
+	  push esi
+	  mov ecx, [ebp+bb.w]
+	  .do1.2:
+	    mov dl, [esi]
+	     inc esi
+	    push esi
+	     mov esi, 8
+	    .do1.3:
+	      add dl, dl
+	       inc edi
+	      sbb eax, eax
+	       inc edi
+	      and eax, ebx
+	      xor eax, [ebp+bb.col0]
+	       dec ecx
+	      mov [edi-2], ax
+	       jz .wend1bpp
+	      dec esi
+	    jnz .do1.3
+	    pop esi
+	  jmp short .do1.2
+.wend1bpp:
+	  pop ecx
+	  pop esi
+	  pop ecx
+	  add edi, [ebp+bb.s]
+	  dec ecx
+	jnz .do1.1
+	pop eax
+	ret
+
+.paletteConv:
+	shr ah, 2
+	shr eax, 3
+	shl ax, 5
+	shr eax, 5
+	ret

30_day/gview/gview.c

@@ -0,0 +1,121 @@
+#include "apilib.h"
+
+struct DLL_STRPICENV {	/* 64KB */
+	int work[64 * 1024 / 4];
+};
+
+struct RGB {
+	unsigned char b, g, r, t;
+};
+
+/* bmp.nasm */
+int info_BMP(struct DLL_STRPICENV *env, int *info, int size, char *fp);
+int decode0_BMP(struct DLL_STRPICENV *env, int size, char *fp, int b_type, char *buf, int skip);
+
+/* jpeg.c */
+int info_JPEG(struct DLL_STRPICENV *env, int *info, int size, char *fp);
+int decode0_JPEG(struct DLL_STRPICENV *env, int size, char *fp, int b_type, char *buf, int skip);
+
+unsigned char rgb2pal(int r, int g, int b, int x, int y);
+void error(char *s);
+
+void HariMain(void)
+{
+	struct DLL_STRPICENV env;
+	char filebuf[512 * 1024], winbuf[1040 * 805];
+	char s[32], *p;
+	int win, i, j, fsize, xsize, info[8];
+	struct RGB picbuf[1024 * 768], *q;
+
+	/*命令行解析*/
+	api_cmdline(s, 30);
+	for (p = s; *p > ' '; p++) { }	/*一直读到空格为止*/
+	for (; *p == ' '; p++) { }	/*跳过空格*/
+
+	/*文件载入*/
+	i = api_fopen(p); if (i == 0) { error("file not found.\n"); }
+	fsize = api_fsize(i, 0);
+	if (fsize > 512 * 1024) {
+		error("file too large.\n");
+	}
+	api_fread(filebuf, fsize, i);
+	api_fclose(i);
+
+	/*检查文件类型*/
+	if (info_BMP(&env, info, fsize, filebuf) == 0) {
+		/*不是BMP */
+		if (info_JPEG(&env, info, fsize, filebuf) == 0) {
+			/*也不是JPEG */
+			api_putstr0("file type unknown.\n");
+			api_end();
+		}
+	}
+	/*上面其中一个info函数调用成功的话，info中包含以下信息 */
+	/*info[0]：文件类型（1:BMP、2:JPEG）*/
+	/*info[1]：颜色数信息*/
+	/*info[2]：xsize */
+	/*	info[3] : ysize */
+
+	if (info[2] > 1024 || info[3] > 768) {
+		error("picture too large.\n");
+	}
+
+	/*窗口准备*/
+	xsize = info[2] + 16;
+	if (xsize < 136) {
+		xsize = 136;
+	}
+	win = api_openwin(winbuf, xsize, info[3] + 37, -1, "gview");
+
+	/*将文件内容转换为图像数据*/
+	if (info[0] == 1) {
+		i = decode0_BMP (&env, fsize, filebuf, 4, (char *) picbuf, 0);
+	} else {
+		i = decode0_JPEG(&env, fsize, filebuf, 4, (char *) picbuf, 0);
+	}
+	/*b_type = 4表示struct RGB格式*/
+	/*skip设为0即可*/
+	if (i != 0) {
+		error("decode error.\n");
+	}
+
+	/*显示*/
+	for (i = 0; i < info[3]; i++) {
+		p = winbuf + (i + 29) * xsize + (xsize - info[2]) / 2;
+		q = picbuf + i * info[2];
+		for (j = 0; j < info[2]; j++) {
+			p[j] = rgb2pal(q[j].r, q[j].g, q[j].b, j, i);
+		}
+	}
+	api_refreshwin(win, (xsize - info[2]) / 2, 29, (xsize - info[2]) / 2 + info[2], 29 + info[3]);
+
+	/*等待结束*/
+	for (;;) {
+		i = api_getkey(1);
+		if (i == 'Q' || i == 'q') {
+			api_end();
+		}
+	}
+}
+
+unsigned char rgb2pal(int r, int g, int b, int x, int y)
+{
+	static int table[4] = { 3, 1, 0, 2 };
+	int i;
+	x &= 1; /*判断是偶数还是奇数*/
+	y &= 1;
+	i = table[x + y * 2];	/*用于生成中间色的常量*/
+	r = (r * 21) / 256;	/*结果为0～20*/
+	g = (g * 21) / 256;
+	b = (b * 21) / 256;
+	r = (r + i) / 4;	/*结果为0～5*/
+	g = (g + i) / 4;
+	b = (b + i) / 4;
+	return 16 + r + g * 6 + b * 36;
+}
+
+void error(char *s)
+{
+	api_putstr0(s);
+	api_end();
+}

30_day/gview/jpeg.c

@@ -0,0 +1,733 @@
+/*
+ * JPEG decoding engine for DCT-baseline
+ *
+ *      copyrights 2003 by nikq | nikq::club.
+ *
+ *
+ */
+
+
+typedef unsigned char UCHAR;
+
+struct DLL_STRPICENV { int work[16384]; };
+
+typedef struct
+{
+    int elem; 
+    unsigned short code[256];
+    unsigned char  size[256];
+    unsigned char  value[256];
+}HUFF;
+
+typedef struct
+{
+    // SOF
+    int width;
+    int height;
+    // MCU
+    int mcu_width;
+    int mcu_height;
+
+    int max_h,max_v;
+    int compo_count;
+    int compo_id[3];
+    int compo_sample[3];
+    int compo_h[3];
+    int compo_v[3];
+    int compo_qt[3];
+
+    // SOS
+    int scan_count;
+    int scan_id[3];
+    int scan_ac[3];
+    int scan_dc[3];
+    int scan_h[3];  
+    int scan_v[3];  
+    int scan_qt[3]; 
+    
+    // DRI
+    int interval;
+
+    int mcu_buf[32*32*4]; 
+    int *mcu_yuv[4];
+    int mcu_preDC[3];
+    
+    // DQT
+    int dqt[3][64];
+    int n_dqt;
+    
+    // DHT
+    HUFF huff[2][3];
+    
+    
+    // FILE i/o
+	unsigned char *fp, *fp1;
+    unsigned long bit_buff;
+    int bit_remain;
+    int width_buf;
+
+	int base_img[64][64]; 
+
+    /* for dll 
+    
+    JPEG *jpeg = (JPEG *)malloc(sizeof(JPEG) + 256);
+    */
+    int dummy[64];
+    
+}JPEG;
+
+/* for 16bit */
+#ifndef PIXEL16
+#define PIXEL16(r, g, b)	((r) << 11 | (g) << 5 | (b))
+	/* 0 <= r <= 31, 0 <= g <= 63, 0 <= b <= 31 */
+#endif
+
+int info_JPEG(struct DLL_STRPICENV *env, int *info, int size, UCHAR *fp);
+int decode0_JPEG(struct DLL_STRPICENV *env, int size, UCHAR *fp, int b_type, UCHAR *buf, int skip);
+
+void jpeg_idct_init(int base_img[64][64]);
+int jpeg_init(JPEG *jpeg);
+// int jpeg_header(JPEG *jpge);
+void jpeg_decode(JPEG *jpeg, unsigned char *rgb,int b_type);
+
+/* ----------------- start main section ----------------- */
+
+int info_JPEG(struct DLL_STRPICENV *env,int *info, int size, UCHAR *fp0)
+{
+	JPEG *jpeg = (JPEG *) (((int *) env) + 128);
+	jpeg->fp = fp0;
+	jpeg->fp1 = fp0 + size;
+
+//	if (512 + sizeof (JPEG) > 64 * 1024)
+//		return 0;
+
+	if (jpeg_init(jpeg))
+		return 0;
+//	jpeg_header(jpeg);
+
+	if (jpeg->width == 0)
+		return 0;
+	
+	info[0] = 0x0002;
+	info[1] = 0x0000;
+	info[2] = jpeg->width;
+	info[3] = jpeg->height;
+
+	/* OK */
+	return 1;
+}
+
+int decode0_JPEG(struct DLL_STRPICENV *env,int size, UCHAR *fp0, int b_type, UCHAR *buf, int skip)
+{
+	JPEG *jpeg = (JPEG *) (((int *) env) + 128);
+	jpeg->fp = fp0;
+	jpeg->fp1 = fp0 + size;
+
+	jpeg_idct_init(jpeg->base_img);
+	jpeg_init(jpeg);
+//	jpeg_header(jpeg);
+
+//	if (jpeg->width == 0)
+//		return 8;
+	/* decode*/
+
+	jpeg->width_buf = skip / (b_type & 0x7f) + jpeg->width;
+    jpeg_decode(jpeg, buf, b_type);
+
+	/* OK */
+	return 0;
+}
+
+// -------------------------- I/O ----------------------------
+
+unsigned short get_bits(JPEG *jpeg, int bit)
+{
+	unsigned char  c, c2;
+	unsigned short ret;
+	unsigned long  buff;
+	int remain;
+
+	buff   = jpeg->bit_buff;
+	remain = jpeg->bit_remain;
+
+	while (remain <= 16) {
+		if (jpeg->fp >= jpeg->fp1) {
+			ret = 0;
+			goto fin;
+		}
+		c = *jpeg->fp++;
+		if (c == 0xff) { 
+			if (jpeg->fp >= jpeg->fp1) {
+				ret = 0;
+				goto fin;
+			}
+			jpeg->fp++; /* 00 skip */
+		}
+		buff = (buff << 8) | c;
+		remain += 8;
+	}
+	ret = (buff >> (remain - bit)) & ((1 << bit) - 1);
+	remain -= bit;
+
+	jpeg->bit_remain = remain;
+	jpeg->bit_buff   = buff;
+fin:
+	return ret;
+}
+
+// ------------------------ JPEG -----------------
+
+// start of frame
+int jpeg_sof(JPEG *jpeg)
+{
+	unsigned char c;
+	int i, h, v, n;
+
+	if (jpeg->fp + 8 > jpeg->fp1)
+		goto err;
+	/* fp[2] ‚Í bpp */
+	jpeg->height = jpeg->fp[3] << 8 | jpeg->fp[4];
+	jpeg->width  = jpeg->fp[5] << 8 | jpeg->fp[6];
+	n = jpeg->compo_count = jpeg->fp[7]; // Num of compo, nf
+	jpeg->fp += 8;
+	if (jpeg->fp + n * 3 > jpeg->fp1)
+		goto err;
+
+	for (i = 0; i < n; i++) {
+		jpeg->compo_id[i] = jpeg->fp[0];
+
+		jpeg->compo_sample[i] = c = jpeg->fp[1];
+		h = jpeg->compo_h[i] = (c >> 4) & 0x0f;
+		v = jpeg->compo_v[i] = c & 0x0f;
+
+		if (jpeg->max_h < h)
+			jpeg->max_h = h;
+		if (jpeg->max_v < v)
+			jpeg->max_v = v;
+
+        jpeg->compo_qt[i] = jpeg->fp[2];
+		jpeg->fp += 3;
+    }
+    return 0;
+err:
+	jpeg->fp = jpeg->fp1;
+	return 1;
+}
+
+// define quantize table
+int jpeg_dqt(JPEG *jpeg)
+{
+	unsigned char c;
+	int i, j, v, size;
+
+	if (jpeg->fp + 2 > jpeg->fp1)
+		goto err;
+	size = (jpeg->fp[0] << 8 | jpeg->fp[1]) - 2;
+	jpeg->fp += 2;
+	if (jpeg->fp + size > jpeg->fp1)
+		goto err;
+
+	while (size > 0) {
+		c = *jpeg->fp++;
+		size--;
+		j = c & 7;
+		if (j > jpeg->n_dqt)
+			jpeg->n_dqt = j;
+
+ 		if (c & 0xf8) {
+			// 16 bit DQT
+			for (i = 0; i < 64; i++) {
+				jpeg->dqt[j][i] = jpeg->fp[0]; 
+				jpeg->fp += 2;
+			}
+			size += -64 * 2;
+		} else {
+			//  8 bit DQT
+			for (i = 0; i < 64; i++)
+				jpeg->dqt[j][i] = *jpeg->fp++;
+			size -= 64;
+		}
+	}
+	return 0;
+err:
+	jpeg->fp = jpeg->fp1;
+	return 1;
+}
+
+// define huffman table
+int jpeg_dht(JPEG *jpeg)
+{
+	unsigned tc, th;
+	unsigned code = 0;
+	unsigned char val;
+	int i, j, k, num, Li[17];
+	int len, max_val;
+	HUFF *table;
+
+	if (jpeg->fp + 2 > jpeg->fp1)
+		goto err;
+	len = (jpeg->fp[0] << 8 | jpeg->fp[1]) - 2;
+	jpeg->fp += 2;
+
+	while (len > 0) {
+		if (jpeg->fp + 17 > jpeg->fp1)
+			goto err;
+		val = jpeg->fp[0];
+
+		tc = (val >> 4) & 0x0f; 
+		th =  val       & 0x0f; 
+		table = &(jpeg->huff[tc][th]);
+
+		num = 0;
+		k = 0;
+		for (i = 1; i <= 16; i++) {
+			Li[i] = jpeg->fp[i];
+			num += Li[i];
+            for (j = 0; j < Li[i]; j++)
+                table->size[k++] = i;
+		}
+		table->elem = num;
+		jpeg->fp += 17;
+
+		k=0;
+		code=0;
+		i = table->size[0];
+		while (k < num) {
+			while (table->size[k] == i)
+				table->code[k++] = code++;
+			if (k >= num)
+				break;
+			do {
+				code <<= 1;
+				i++;
+			} while (table->size[k] != i);
+		}
+
+		if (jpeg->fp + num > jpeg->fp1)
+			goto err;
+		for (k = 0; k < num; k++)
+			table->value[k] = jpeg->fp[k];
+		jpeg->fp += num;
+
+        len -= 18 + num;
+    }
+    return 0;
+err:
+	jpeg->fp = jpeg->fp1;
+	return 1;
+}
+
+int jpeg_init(JPEG *jpeg)
+{
+	unsigned char c;
+	int r = 0, i;
+	jpeg->width = 0;
+	jpeg->mcu_preDC[0] = 0;
+	jpeg->mcu_preDC[1] = 0;
+	jpeg->mcu_preDC[2] = 0;
+	jpeg->n_dqt = 0;
+	jpeg->max_h = 0;
+	jpeg->max_v = 0;
+	jpeg->bit_remain = 0;
+	jpeg->bit_buff   = 0;
+
+	jpeg->interval = 0;
+//	return;
+//}
+//
+//int jpeg_header(JPEG *jpeg)
+//{
+//	unsigned char c;
+//	int r = 0, i;
+
+	for (;;) {
+		if (jpeg->fp + 2 > jpeg->fp1)
+			goto err;
+		if (jpeg->fp[0] != 0xff)
+            goto err0;
+		c = jpeg->fp[1];
+		jpeg->fp += 2;
+		if (c == 0xd8)
+			continue; /* SOI */
+		if (c == 0xd9)
+			goto err; /* EOI */
+
+		if (c == 0xc0)
+            jpeg_sof(jpeg);
+		else if (c == 0xc4)
+            jpeg_dht(jpeg);
+		else if (c == 0xdb)
+            jpeg_dqt(jpeg);
+		else if (c == 0xdd) {
+			if (jpeg->fp + 4 > jpeg->fp1)
+				goto err;
+			jpeg->interval = jpeg->fp[2] << 8 | jpeg->fp[3];
+			jpeg->fp += 4;
+		} else if (c == 0xda) {
+			if (jpeg->fp + 3 > jpeg->fp1)
+				goto err;
+			jpeg->scan_count = jpeg->fp[2];
+			jpeg->fp += 3;
+			if (jpeg->fp + jpeg->scan_count * 2 > jpeg->fp1)
+				goto err;
+			for (i = 0; i < jpeg->scan_count; i++) {
+				jpeg->scan_id[i] = jpeg->fp[0];
+				jpeg->scan_dc[i] = jpeg->fp[1] >> 4;   // DC Huffman Table
+				jpeg->scan_ac[i] = jpeg->fp[1] & 0x0F; // AC Huffman Table
+				jpeg->fp += 2;
+			}
+			jpeg->fp += 3; /* 3bytes skip */
+            goto fin;
+		} else {
+			if (jpeg->fp + 2 > jpeg->fp1)
+				goto err;
+			jpeg->fp += jpeg->fp[0] << 8 | jpeg->fp[1];
+		}
+    }
+err:
+	jpeg->fp = jpeg->fp1;
+err0:
+	r++;
+fin:
+	return r;
+}
+
+// MCU decode
+
+void jpeg_decode_init(JPEG *jpeg)
+{
+	int i, j;
+
+	for (i = 0; i < jpeg->scan_count; i++) {
+		// i:scan
+		for (j = 0; j < jpeg->compo_count; j++) {
+			// j:frame
+			if (jpeg->scan_id[i] == jpeg->compo_id[j]) {
+				jpeg->scan_h[i]  = jpeg->compo_h[j];
+				jpeg->scan_v[i]  = jpeg->compo_v[j];
+				jpeg->scan_qt[i] = jpeg->compo_qt[j];
+                break;
+			}
+		}
+	//	if (j >= jpeg->compo_count)
+	//		return 1;
+	}
+	jpeg->mcu_width  = jpeg->max_h * 8;
+	jpeg->mcu_height = jpeg->max_v * 8;
+    
+	for (i = 0; i < 32 * 32 * 4; i++)
+		jpeg->mcu_buf[i] = 0x80;
+
+	for (i = 0; i < jpeg->scan_count; i++)
+		jpeg->mcu_yuv[i] = jpeg->mcu_buf + (i << 10);
+	return;
+}
+
+int jpeg_huff_decode(JPEG *jpeg,int tc,int th)
+{
+    HUFF *h = &(jpeg->huff[tc][th]);
+    int code,size,k,v;
+    code = 0;
+    size = 0;
+    k = 0;
+    while( size < 16 ){
+        size++;
+        v = get_bits(jpeg,1);
+        if(v < 0){
+            return v;
+        }
+        code = (code << 1) | v;
+
+        while(h->size[k] == size){
+            if(h->code[k] == code){
+                return h->value[k];
+            }
+            k++;
+        }
+    }
+
+    return -1;
+}
+
+void jpeg_idct_init(int base_img[64][64])
+{
+    int u, v, m, n;
+    int tmpm[8], tmpn[8];
+	int cost[32];
+	cost[ 0] =  32768; cost[ 1] =  32138; cost[ 2] =  30274; cost[ 3] =  27246; cost[ 4] =  23170; cost[ 5] =  18205; cost[ 6] =  12540; cost[ 7] =   6393;
+	cost[ 8] =      0; cost[ 9] =  -6393; cost[10] = -12540; cost[11] = -18205; cost[12] = -23170; cost[13] = -27246; cost[14] = -30274; cost[15] = -32138;
+	for (u = 0; u < 16; u++)
+		cost[u + 16] = - cost[u];
+
+    for (u = 0; u < 8; u++) {
+        {
+            int i=u, d=u*2;
+            if (d == 0)
+                i = 4;
+            for (m = 0; m < 8; m++){
+                tmpm[m] = cost[i];
+                i=(i+d)&31;
+            }
+        }
+        for (v = 0; v < 8; v++) {
+            {
+                int i=v,d=v*2;
+                if (d == 0)
+                    i=4;
+                for (n = 0; n < 8; n++){
+                    tmpn[n] = cost[i]; 
+                    i=(i+d)&31;
+                }
+            }
+            
+            for (m = 0; m < 8; m++) {
+                for (n = 0; n < 8; n++) {
+                    base_img[u * 8 + v][m * 8 + n] = (tmpm[m] * tmpn[n])>>15;
+                }
+            }
+        }
+    }
+    return;
+}
+
+void jpeg_idct(int *block, int *dest, int base_img[64][64])
+{
+    int i, j ,k;
+
+    for (i = 0; i < 64; i++)
+        dest[i] = 0;
+
+    for (i = 0; i < 64; i++) {
+        k = block[i];
+        if(k) { 
+            for (j = 0; j < 64; j++) {
+                dest[j] += k * base_img[i][j];
+            }
+        }
+    }
+    
+    for (i = 0; i < 64; i++)
+        dest[i] >>= 17;
+    return;
+}
+
+
+int jpeg_get_value(JPEG *jpeg,int size)
+{
+	int val = 0;
+    if (size) {
+		val = get_bits(jpeg,size);
+		if (val < 0)
+			val = 0x10000 | (0 - val);
+		else if (!(val & (1<<(size-1))))
+			val -= (1 << size) - 1;
+	}
+    return val;
+}
+
+int jpeg_decode_huff(JPEG *jpeg,int scan,int *block, UCHAR *zigzag_table)
+{
+    int size, len, val, run, index;
+    int *pQt = (int *)(jpeg->dqt[jpeg->scan_qt[scan]]);
+
+    // DC
+    size = jpeg_huff_decode(jpeg,0,jpeg->scan_dc[scan]);
+    if(size < 0)
+        return 0;
+    val = jpeg_get_value(jpeg,size);
+    jpeg->mcu_preDC[scan] += val;
+    block[0] = jpeg->mcu_preDC[scan] * pQt[0];
+
+    //AC
+    index = 1;
+    while(index<64)
+    {
+        size = jpeg_huff_decode(jpeg,1,jpeg->scan_ac[scan]);
+        if(size < 0)
+            break;
+        // EOB
+        if(size == 0)
+            break;
+        
+        // RLE
+        run  = (size>>4)&0xF;
+        size = size & 0x0F;
+        
+        val = jpeg_get_value(jpeg,size);
+        if(val>=0x10000) {
+            return val;
+        }
+
+        // ZRL
+        while (run-- > 0)
+            block[ zigzag_table[index++] ] = 0;
+        
+        block[ zigzag_table[index] ] = val * pQt[index];
+        index++;
+    }
+    while(index<64)
+        block[zigzag_table[index++]]=0;
+    return 0;
+}
+
+void jpeg_mcu_bitblt(int *src, int *dest, int width,
+                     int x0, int y0, int x1, int y1)
+{
+	int w, h;
+	int x, y, x2, y2;
+	w = x1 - x0;
+	h = y1 - y0;
+	dest += y0 * width + x0;
+	width -= w;
+
+	for (y = 0; y < h; y++) {
+		y2 = (y * 8 / h) * 8;
+		for (x = 0; x < w; x++)
+			*dest++ = src[y2 + (x * 8 / w)];
+		dest += width;
+	}
+}
+
+int jpeg_decode_mcu(JPEG *jpeg, UCHAR *zigzag_table)
+{
+	int scan, val;
+	int unit, i, h, v;
+	int *p, hh, vv;
+	int block[64], dest[64];
+
+	// mcu_width x mcu_height
+	for (scan = 0; scan < jpeg->scan_count; scan++) {
+		hh = jpeg->scan_h[scan];
+		vv = jpeg->scan_v[scan];
+		for (v = 0; v < vv; v++) {
+            for (h = 0; h < hh; h++) {
+				// ƒuƒƒbƒN(8x8)‚̃fƒR[ƒh
+				val = jpeg_decode_huff(jpeg, scan, block, zigzag_table);
+			//	if(val>=0x10000){
+			//		printf("marker found:%02x\n",val);
+			//	}
+
+				jpeg_idct(block, dest, jpeg->base_img);
+
+				p = jpeg->mcu_buf + (scan << 10);
+
+				jpeg_mcu_bitblt(dest, p, jpeg->mcu_width,
+					jpeg->mcu_width * h / hh, jpeg->mcu_height * v / vv,
+					jpeg->mcu_width * (h + 1) / hh, jpeg->mcu_height * (v + 1) / vv);
+			}
+		}
+	}
+}
+
+// YCrCb=>RGB
+
+int jpeg_decode_yuv(JPEG *jpeg, int h, int v, unsigned char *rgb, int b_type)
+{
+	int x0, y0, x, y, x1, y1;
+	int *py;
+	int Y12, V;
+	int mw, mh, w;
+	int i;
+
+	mw = jpeg->mcu_width;
+	mh = jpeg->mcu_height;
+
+	x0 = h * jpeg->max_h * 8;
+	y0 = v * jpeg->max_v * 8;
+
+	x1 = jpeg->width - x0;
+	if (x1 > mw)
+		x1 = mw;
+	y1 = jpeg->height - y0;
+	if (y1 > mh)
+		y1 = mh;
+    
+	py = jpeg->mcu_buf;
+	rgb += (y0 * jpeg->width_buf + x0) * (b_type & 0x7f);
+	w = (jpeg->width_buf - x1) * (b_type & 0x7f);
+
+	for (y = 0; y < y1; y++) {
+		for (x = 0; x < x1; x++) {
+			int b, g, r;
+			Y12 = py[0] << 12;
+		//	U = py[1024]; /* pu */
+			V = py[2048]; /* pv */
+
+			/* blue */
+			b = 128 + ((Y12 - V * 4 + py[1024] /* pu */ * 0x1C59) >> 12);
+			if (b & 0xffffff00)
+				b = (~b) >> 24;
+
+			/* green */
+			g = 128 + ((Y12 - V * 0x0B6C) >> 12);
+			if (g & 0xffffff00)
+				g = (~g) >> 24;
+
+			/* red */
+			r = 128 + ((Y12 + V * 0x166E) >> 12);
+			if (r & 0xffffff00)
+				r = (~r) >> 24;
+			if (b_type == 0x0004) {
+				rgb[0] = b;
+				rgb[1] = g;
+				rgb[2] = r;
+				py++;
+				rgb += 4;
+			} else if (b_type == 0x0002) {
+				r &= 0xff;
+				g &= 0xff;
+				b &= 0xff;
+				*(short *) rgb = PIXEL16(r >> 3, g >> 2, b >> 3);
+				rgb += 2;
+			}
+		}
+		py += mw - x1;
+		rgb += w;
+	}
+	return;
+}
+
+#define INIT_ZTABLE(i, b0, b1, b2, b3)	*(int *) &zigzag_table[i] = b0 | b1 << 8 | b2 << 16 | b3 << 24
+
+void jpeg_decode(JPEG *jpeg, UCHAR *rgb, int b_type)
+{
+	int h_unit, v_unit;
+	int mcu_count, h, v;
+	int val;
+	unsigned char m;
+
+    UCHAR zigzag_table[64];
+
+	INIT_ZTABLE( 0,  0,  1,  8, 16); INIT_ZTABLE( 4,  9,  2,  3, 10);
+	INIT_ZTABLE( 8, 17, 24, 32, 25); INIT_ZTABLE(12, 18, 11,  4,  5);
+	INIT_ZTABLE(16, 12, 19, 26, 33); INIT_ZTABLE(20, 40, 48, 41, 34);
+	INIT_ZTABLE(24, 27, 20, 13,  6); INIT_ZTABLE(28,  7, 14, 21, 28);
+	INIT_ZTABLE(32, 35, 42, 49, 56); INIT_ZTABLE(36, 57, 50, 43, 36);
+	INIT_ZTABLE(40, 29, 22, 15, 23); INIT_ZTABLE(44, 30, 37, 44, 51);
+	INIT_ZTABLE(48, 58, 59, 52, 45); INIT_ZTABLE(52, 38, 31, 39, 46);
+	INIT_ZTABLE(56, 53, 60, 61, 54); INIT_ZTABLE(60, 47, 55, 62, 63);
+
+	jpeg_decode_init(jpeg);
+
+	h_unit = (jpeg->width + jpeg->mcu_width - 1) / jpeg->mcu_width;
+	v_unit = (jpeg->height + jpeg->mcu_height - 1) / jpeg->mcu_height;
+
+	mcu_count = 0;
+	for (v = 0; v < v_unit; v++) {
+		for (h = 0; h < h_unit; h++) {
+			mcu_count++;
+			jpeg_decode_mcu(jpeg, zigzag_table);
+			jpeg_decode_yuv(jpeg, h, v, rgb, b_type & 0x7fff);
+			if (jpeg->interval > 0 && mcu_count >= jpeg->interval) {
+				jpeg->bit_remain -= (jpeg->bit_remain & 7);
+				jpeg->bit_remain -= 8;
+				jpeg->mcu_preDC[0] = 0;
+				jpeg->mcu_preDC[1] = 0;
+				jpeg->mcu_preDC[2] = 0;
+				mcu_count = 0;
+			}
+		}
+	}
+    return;
+}
+

30_day/gview/make.bat

@@ -0,0 +1 @@
+..\..\z_tools\make.exe %1 %2 %3 %4 %5 %6 %7 %8 %9