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Diffstat (limited to 'scumm/smush/blitter.cpp')
-rw-r--r-- | scumm/smush/blitter.cpp | 235 |
1 files changed, 0 insertions, 235 deletions
diff --git a/scumm/smush/blitter.cpp b/scumm/smush/blitter.cpp deleted file mode 100644 index 1318a60f79..0000000000 --- a/scumm/smush/blitter.cpp +++ /dev/null @@ -1,235 +0,0 @@ -/* ScummVM - Scumm Interpreter - * Copyright (C) 2002-2003 The ScummVM project - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version 2 - * of the License, or (at your option) any later version. - - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. - * - * $Header$ - * - */ - -#include "stdafx.h" -#include "common/util.h" -#include "blitter.h" -#include "chunk.h" - -#include <assert.h> -#include <string.h> // for memcpy - -Blitter::Blitter(byte *ptr, const Point &dstsize, const Rect &src) : - _ptr(ptr), - _clip(dstsize), - _src(src), - _cur(src.left(), src.top()), - _outside(false) { -#ifdef DEBUG_CLIPPER - _clipped = 0; - _clippedBlock = 0; -#endif - assert(_ptr); - assert(_clip.getX() > 0 && _clip.getY() > 0); - assert(_src.width() > 0 && _src.height() > 0); - assert(_src.left() < _clip.getX() && _src.right() <= _clip.getX()); - assert(_src.top() < _clip.getY() && _src.bottom() <= _clip.getY()); - _offset = _ptr + _clip.getX() * _cur.getY() + _cur.getX(); -} - -Blitter::~Blitter() { -#ifdef DEBUG_CLIPPER - if(_clipped || _clippedBlock) { - debug(3, "blitter clipped %d pixels and %d blocks", _clipped, _clippedBlock); - } -#endif -} - -void Blitter::advance(int32 x, int32 y) { - if(y != 0) { - _cur.set(_src.left() + x, _cur.getY() + y); - } else { - _cur.getX() += x; - if(_cur.getX() >= _src.right()) { - _cur.set(_src.left(), _cur.getY()+1); - } - } - _offset = _ptr + _clip.getX() * _cur.getY() + _cur.getX(); - _outside = ! _src.isInside(_cur); -} - -void Blitter::advanceBlock(int32 x, int32 y) { - advance(x * 4, y * 4); -} - -void Blitter::put(byte data) { - if(!_outside) { - *_offset = data; - advance(); - } -#ifdef DEBUG_CLIPPER - else _clipped++; -#endif -} - -void Blitter::put(byte data, uint32 len) { - while(len) { - if(_outside) { -#ifdef DEBUG_CLIPPER - _clipped += len; -#endif - break; - } - int32 l = MIN((int32)len, MIN(_clip.getX() - _cur.getX(), _src.right() - _cur.getX())); - len -= l; - memset(_offset, data, l); - advance(l); - } -} - -void Blitter::blit(byte *ptr, uint32 len) { - while(len) { - if(_outside) { -#ifdef DEBUG_CLIPPER - _clipped += len; -#endif - break; - } - int32 l = MIN((int32)len, MIN(_clip.getX() - _cur.getX(), _src.right() - _cur.getX())); - len -= l; - memcpy(_offset, ptr, l); - ptr += l; - advance(l); - } -} - -void Blitter::blit(Chunk &src, uint32 len) { - while(len) { - if(_outside) { -#ifdef DEBUG_CLIPPER - _clipped += len; -#endif - break; - } - int32 l = MIN((int32)len, MIN(_clip.getX() -_cur.getX(), _src.right() - _cur.getX())); - len -= l; - src.read(_offset, l); - advance(l); - } -} - -void Blitter::putBlock(uint32 data) { - if(_cur.getX() + 3 < _src.right() && _cur.getY() + 3 < _src.bottom()) { // This is clipping - assert((_clip.getX() & 3) == 0); - uint32 *dst = (uint32 *)_offset; - int32 line_size = _clip.getX() >> 2; - data = TO_LE_32(data); - - *dst = data; dst += line_size; - *dst = data; dst += line_size; - *dst = data; dst += line_size; - *dst = data; - -#ifdef DEBUG_CLIPPER - } else { - _clippedBlock ++; -#endif - } - advanceBlock(); -} - -void Blitter::putBlock(uint32 d1, uint32 d2, uint32 d3, uint32 d4) { - if(_cur.getX() + 3 < _src.right() && _cur.getY() + 3 < _src.bottom()) { // This is clipping - assert((_clip.getX() & 3) == 0); - uint32 *dst = (uint32 *)_offset; - int32 line_size = _clip.getX() >> 2; - - *dst = TO_LE_32(d4); dst += line_size; - *dst = TO_LE_32(d3); dst += line_size; - *dst = TO_LE_32(d2); dst += line_size; - *dst = TO_LE_32(d1); - -#ifdef DEBUG_CLIPPER - } else { - _clippedBlock++; -#endif - } - advanceBlock(); -} - -void Blitter::putBlock(byte *data) { - if(_cur.getX() + 3 < _src.right() && _cur.getY() + 3 < _src.bottom()) { // This is clipping - assert((_clip.getX() & 3) == 0); - uint32 *dst = (uint32 *)_offset; - int32 line_size = _clip.getX() >> 2; - uint32 *src = (uint32 *)data; - *dst = TO_LE_32(*src++); dst += line_size; - *dst = TO_LE_32(*src++); dst += line_size; - *dst = TO_LE_32(*src++); dst += line_size; - *dst = TO_LE_32(*src++); -#ifdef DEBUG_CLIPPER - } else { - _clippedBlock++; -#endif - } - advanceBlock(); -} - -void Blitter::putBlock(Chunk &src) { - if(_cur.getX() + 3 < _src.right() && _cur.getY() + 3 < _src.bottom()) { // This is clipping - assert((_clip.getX() & 3) == 0); - uint32 *dst = (uint32 *)_offset; - int32 line_size = _clip.getX() >> 2; - *dst = TO_LE_32(src.getDword()); dst += line_size; - *dst = TO_LE_32(src.getDword()); dst += line_size; - *dst = TO_LE_32(src.getDword()); dst += line_size; - *dst = TO_LE_32(src.getDword()); -#ifdef DEBUG_CLIPPER - } else { - _clippedBlock++; -#endif - } - advanceBlock(); -} - -void Blitter::blockCopy(int32 offset) { - if(_cur.getX() + 3 < _src.right() && _cur.getY() + 3 < _src.bottom()) {// This is clipping - byte * dst = _offset; -#if defined(SCUMM_NEED_ALIGNMENT) - memcpy(dst, dst + offset, sizeof(uint32)); -#else - *((uint32 *)dst) = *((uint32 *)(dst + offset)); -#endif - dst += _clip.getX(); -#if defined(SCUMM_NEED_ALIGNMENT) - memcpy(dst, dst + offset, sizeof(uint32)); -#else - *((uint32 *)dst) = *((uint32 *)(dst + offset)); -#endif - dst += _clip.getX(); -#if defined(SCUMM_NEED_ALIGNMENT) - memcpy(dst, dst + offset, sizeof(uint32)); -#else - *((uint32 *)dst) = *((uint32 *)(dst + offset)); -#endif - dst += _clip.getX(); -#if defined(SCUMM_NEED_ALIGNMENT) - memcpy(dst, dst + offset, sizeof(uint32)); -#else - *((uint32 *)dst) = *((uint32 *)(dst + offset)); -#endif -#ifdef DEBUG_CLIPPER - } else { - _clippedBlock++; -#endif - } - advanceBlock(); -} |