raze-gles/source/core/console/c_consolebuffer.cpp

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/*
** consolebuffer.cpp
**
** manages the text for the console
**
**---------------------------------------------------------------------------
** Copyright 2014 Christoph Oelckers
** All rights reserved.
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
**
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
** 3. The name of the author may not be used to endorse or promote products
** derived from this software without specific prior written permission.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
** IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
** OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
** IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
** INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
** NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
** THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
**---------------------------------------------------------------------------
**
*/
#include "c_console.h"
#include "c_consolebuffer.h"
#include "printf.h"
//==========================================================================
//
//
//
//==========================================================================
FConsoleBuffer::FConsoleBuffer()
{
mLogFile = NULL;
mAddType = NEWLINE;
mLastFont = NULL;
mLastDisplayWidth = -1;
mLastLineNeedsUpdate = false;
mTextLines = 0;
mBufferWasCleared = true;
mBrokenStart.Push(0);
}
//==========================================================================
//
// Adds a new line of text to the console
// This is kept as simple as possible. This function does not:
// - remove old text if the buffer gets larger than the specified size
// - format the text for the current screen layout
//
// These tasks will only be be performed once per frame because they are
// relatively expensive. The old console did them each time text was added
// resulting in extremely bad performance with a high output rate.
//
//==========================================================================
void FConsoleBuffer::AddText(int printlevel, const char *text)
{
FString build = TEXTCOLOR_TAN;
if (mAddType == REPLACELINE)
{
// Just wondering: Do we actually need this case? If so, it may need some work.
mConsoleText.Pop(); // remove the line to be replaced
mLastLineNeedsUpdate = true;
}
else if (mAddType == APPENDLINE)
{
mConsoleText.Pop(build);
printlevel = -1;
mLastLineNeedsUpdate = true;
}
if (printlevel >= 0 && printlevel != PRINT_HIGH)
{
if (printlevel == 200) build = TEXTCOLOR_GREEN;
else if (printlevel < PRINTLEVELS) build.Format("%c%c", TEXTCOLOR_ESCAPE, PrintColors[printlevel]+'A');
}
size_t textsize = strlen(text);
if (text[textsize-1] == '\r')
{
textsize--;
mAddType = REPLACELINE;
}
else if (text[textsize-1] == '\n')
{
textsize--;
mAddType = NEWLINE;
}
else
{
mAddType = APPENDLINE;
}
// don't bother with linefeeds etc. inside the text, we'll let the formatter sort this out later.
build.AppendCStrPart(text, textsize);
mConsoleText.Push(build);
}
//==========================================================================
//
// Format the text for output
//
//==========================================================================
void FConsoleBuffer::FormatText(FFont *formatfont, int displaywidth)
{
if (formatfont != mLastFont || displaywidth != mLastDisplayWidth || mBufferWasCleared)
{
if (mBufferWasCleared)
mLastLineNeedsUpdate = false;
m_BrokenConsoleText.Clear();
mBrokenStart.Clear();
mBrokenStart.Push(0);
mBrokenLines.Clear();
mLastFont = formatfont;
mLastDisplayWidth = displaywidth;
mBufferWasCleared = false;
}
unsigned brokensize = m_BrokenConsoleText.Size();
if (brokensize == mConsoleText.Size())
{
// The last line got text appended.
if (mLastLineNeedsUpdate)
{
brokensize--;
m_BrokenConsoleText.Resize(brokensize);
}
}
mBrokenLines.Resize(mBrokenStart[brokensize]);
mBrokenStart.Resize(brokensize);
for (unsigned i = brokensize; i < mConsoleText.Size(); i++)
{
auto bl = V_BreakLines(formatfont, displaywidth, mConsoleText[i], true);
m_BrokenConsoleText.Push(bl);
mBrokenStart.Push(mBrokenLines.Size());
for(auto &bline : bl)
{
mBrokenLines.Push(bline);
}
}
mTextLines = mBrokenLines.Size();
mBrokenStart.Push(mTextLines);
mLastLineNeedsUpdate = false;
}
//==========================================================================
//
// Delete old content if number of lines gets too large
//
//==========================================================================
void FConsoleBuffer::ResizeBuffer(unsigned newsize)
{
if (mConsoleText.Size() > newsize)
{
unsigned todelete = mConsoleText.Size() - newsize;
mConsoleText.Delete(0, todelete);
mBufferWasCleared = true;
}
}