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- INCLUDE IMGFUN.inc
- INCLUDE COLCODE.inc
- .CODE
- PUBLIC IMGbltAreaTransDecompress
- SeekForward PROTO STDCALL
- IMGbltAreaTransDecompress PROC imageBuf,pitch,x,y,bitmapPtr,x1,y1,x2,y2
- LOCAL clipWidth:DWORD, bitmapWidth:DWORD, bitmapHeight:DWORD
- LOCAL tempESI:DWORD
- STARTPROC
- MOV EAX, imageBuf
- MOV image_buf, EAX
-
- MOV AX , DS
- MOV ES , AX
- MOV ESI, bitmapPtr
-
- CALC_ADDR_2 EDI, x, y, x1, y1,pitch
-
- XOR EAX, EAX
- LODSW
- MOV bitmapWidth, EAX
- MOV EAX, x2
- SUB EAX, x1
- INC EAX
- MOV clipWidth, EAX
-
- LODSW
- MOV bitmapHeight, EAX
- MOV ECX, EAX
- MOV ECX, y2
- SUB ECX, y1
-
-
- JC @@end
-
-
-
- PUSH ECX
-
- MOV EAX, y1
- MUL bitmapWidth
- ADD EAX, x1
- MOV ECX, EAX
- MOV AH,0
- CALL SeekForward
- POP ECX
- JECXZ @@lastLine
- @@loopY:
- PUSH ECX
- MOV ECX, clipWidth
- @@loopX:
-
- LODSB
- JUMP_IF_TRANS al, @@clipCompress1
- @@nonTrans:
-
-
- STOSB
-
-
- LOOP @@loopX
- ADD EDI, pitch
- SUB EDI, clipWidth
-
- MOV ECX, bitmapWidth
- SUB ECX, clipWidth
- MOV AH,0
- CALL SeekForward
- JMP @@endloopY
- ALIGN 4
- @@clipCompress1:
-
- MOV tempESI, ESI
-
- JUMP_IF_NOT_MANY_TRANS al, @@clipCompress1a
- LODSB
- ENCODE_FEW_TRANS_CODE al
- @@clipCompress1a:
- MOV DL,AL
- DECODE_FEW_TRANS_CODE dl
- SUB DL,AH
- MOVZX DX,DL
- CMP ECX, EDX
- JBE @@clipCompress2
-
-
- ADD EDI, EDX
- SUB ECX, EDX
- MOV AH,0
- JMP @@loopX
- ALIGN 4
- @@clipCompress2:
-
-
-
- ADD EDI, pitch
- SUB ECX, clipWidth
- ADD EDI, ECX
-
-
-
- ADD ECX, bitmapWidth
- MOV ESI, tempESI
- DEC ESI
- CALL SeekForward
- @@endloopY: POP ECX
- LOOP @@loopY
-
- @@lastLine:
- MOV ECX, clipWidth
- @@lastLoopX:
- LODSB
- JUMP_IF_TRANS al, @@lastClipCompress1
- @@lastNonTrans:
- STOSB
-
- LOOP @@lastLoopX
- JMP @@endLast
- ALIGN 4
- @@lastClipCompress1:
-
- JUMP_IF_NOT_MANY_TRANS al, @@lastClipCompress1a
-
- LODSB
- ENCODE_FEW_TRANS_CODE al
- @@lastClipCompress1a:
- MOV DL,AL
- DECODE_FEW_TRANS_CODE al
- SUB DL,AH
- MOVZX DX,DL
- CMP ECX, EDX
- JBE @@endLast
-
-
- ADD EDI, EDX
- SUB ECX, EDX
- MOV AH,0
- JMP @@lastLoopX
- ALIGN 4
- @@endLast:
- @@end: ENDPROC
- IMGbltAreaTransDecompress ENDP
- END
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