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authorMax Horn2002-07-17 20:55:36 +0000
committerMax Horn2002-07-17 20:55:36 +0000
commit862e0b26bc5b1f1a564dd9f1064b2c7dde551436 (patch)
tree3445434de5128ead87fdedee1dfd98ca0a7d57f8 /gui/util.cpp
parent0fe3a0c676bfcf773c15b76e4e0fc3e642f82f58 (diff)
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moved gui/utils.* to main level; removed some unused stuff from our file accessor functions
svn-id: r4583
Diffstat (limited to 'gui/util.cpp')
-rw-r--r--gui/util.cpp197
1 files changed, 0 insertions, 197 deletions
diff --git a/gui/util.cpp b/gui/util.cpp
deleted file mode 100644
index 11f3aa4716..0000000000
--- a/gui/util.cpp
+++ /dev/null
@@ -1,197 +0,0 @@
-/* ScummVM - Scumm Interpreter
- * Copyright (C) 2002 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 "util.h"
-
-// 8-bit alpha blending routines
-int BlendCache[256][256];
-
-int RGBMatch(byte *palette, int r, int g, int b)
-{
- int i, bestidx = 0, besterr = 0xFFFFFF;
- int error = 0;
-
- for (i = 0;i < 256;i++) {
- byte *pal = palette + (i * 3);
- int r_diff = r - (int)*pal++;
- int g_diff = g - (int)*pal++;
- int b_diff = b - (int)*pal++;
- r_diff *= r_diff; g_diff *= g_diff; b_diff *= b_diff;
-
- error = r_diff + g_diff + b_diff;
- if (error < besterr) {
- besterr = error;
- bestidx = i;
- }
- }
- return bestidx;
-}
-
-int Blend(int src, int dst, byte *palette)
-{
- int r, g, b;
- int alpha = 128; // Level of transparency [0-256]
- byte *srcpal = palette + (dst * 3);
- byte *dstpal = palette + (src * 3);
-
- if (BlendCache[dst][src] > -1)
- return BlendCache[dst][src];
-
- r = (*srcpal++ * alpha);
- r += (*dstpal++ * (256-alpha));
- r /= 256;
-
- g = (*srcpal++ * alpha);
- g += (*dstpal++ * (256-alpha));
- g /= 256;
-
- b = (*srcpal++ * alpha);
- b += (*dstpal++ * (256-alpha));
- b /= 256;
-
- return (BlendCache[dst][src] = RGBMatch(palette, r , g , b ));
-}
-
-void ClearBlendCache(byte *palette, int weight)
-{
- for (int i = 0; i < 256; i++)
- for (int j = 0 ; j < 256 ; j++)
-// BlendCache[i][j] = i; // No alphablending
-// BlendCache[i][j] = j; // 100% translucent
- BlendCache[i][j] = -1; // Enable alphablending
-}
-
-
-#pragma mark -
-
-
-String::String(const char *str)
-{
- _capacity = _len = strlen(str);
- _str = (char *)calloc(1, _capacity+1);
- memcpy(_str, str, _len+1);
-}
-
-String::String(const String &str)
-{
- _capacity = str._capacity;
- _len = str._len;
- _str = (char *)calloc(1, _capacity+1);
- memcpy(_str, str._str, _len+1);
-}
-
-String::~String()
-{
- if (_str)
- free(_str);
-}
-
-String& String::operator =(const char* str)
-{
- int len = strlen(str);
- ensureCapacity(len, false);
-
- _len = len;
- if (_str)
- memcpy(_str, str, _len + 1);
-
- return *this;
-}
-
-String& String::operator =(const String& str)
-{
- int len = str._len;
- ensureCapacity(len, false);
-
- _len = len;
- if (_str)
- memcpy(_str, str._str, _len + 1);
-
- return *this;
-}
-
-String& String::operator +=(const char* str)
-{
- int len = strlen(str);
- ensureCapacity(_len + len, true);
-
- if (_str)
- memcpy(_str + _len, str, len + 1);
- _len += len;
-
- return *this;
-}
-
-String& String::operator +=(const String& str)
-{
- int len = str._len;
- ensureCapacity(_len + len, true);
-
- if (_str && str._str)
- memcpy(_str + _len, str._str, len + 1);
- _len += len;
-
- return *this;
-}
-
-String& String::operator +=(char c)
-{
- int len = _len + 1;
- ensureCapacity(len, true);
-
- _str[_len++] = c;
- _str[_len] = 0;
-
- return *this;
-}
-
-void String::deleteLastChar() {
- if (_len > 0) {
- _len--;
- _str[_len]=0;
- }
-}
-
-void String::clear()
-{
- if (_str)
- free(_str);
- _capacity = 0;
- _len = 0;
- _str = 0;
-}
-
-void String::ensureCapacity(int new_len, bool keep_old)
-{
- if (new_len <= _capacity)
- return;
-
- char *old_str = _str;
- _capacity = new_len + 32;
- _str = (char *)calloc(1, _capacity+1);
-
- if (old_str) {
- if (keep_old)
- memcpy(_str, old_str, _len+1);
- free(old_str);
- }
-}
-