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Aquaria/BBGE/BitmapFont.cpp
fgenesis 12ea97f051 Disable all glEnable/glDisable() calls for GL_CULL_FACE, except one glDisable() during renderer init.
GL_CULL_FACE is effectively always disabled, except for quad strip
rendering, and keeping GL_CULL_FACE disabled there does not seem
to cause any visual artifacts.
Instead, it enhances skeletal animation possibilities
(e.g. flipping bone strips over without it disappearing)
2013-05-02 04:31:07 +02:00

457 lines
8.4 KiB
C++

/*
Copyright (C) 2007, 2010 - Bit-Blot
This file is part of Aquaria.
Aquaria 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.
*/
#include "BitmapFont.h"
#include "Core.h"
//#include "DSQ.h"
using namespace glfont;
BmpFont::BmpFont()
{
scale = 1;
loaded = false;
overrideTexture = 0;
fontTopColor = Vector(1,1,1);
fontBtmColor = Vector(1,1,1);
}
BmpFont::~BmpFont()
{
destroy();
}
void BmpFont::destroy()
{
if (loaded)
{
font.Destroy();
loaded = false;
}
if (overrideTexture)
{
overrideTexture->removeRef();
overrideTexture = 0;
}
}
void BmpFont::load(const std::string &file, float scale, bool loadTexture)
{
if (loaded)
font.Destroy();
this->scale = scale;
#ifdef BBGE_BUILD_OPENGL
GLuint id=0;
glGenTextures(1, &id);
if (!font.Create(file.c_str(), id, loadTexture))
return;
#endif
loaded = true;
}
Texture *fontTextureTest = 0;
BitmapText::BitmapText(BmpFont *bmpFont)
{
this->bmpFont = bmpFont;
bfePass =0;
bfe = BFE_NONE;
currentScrollLine = currentScrollChar = 0;
scrollDelay = 0;
scrolling = false;
align = ALIGN_CENTER;
textWidth = 600;
this->fontDrawSize = 24;
//color = Vector(0.5,0.5,1);
cull = false;
//setTexture(font);
alignWidth = 0;
//fontTextureTest = core->addTexture("font");
}
void BitmapText::autoKern()
{
}
void BitmapText::loadSpacingMap(const std::string &file)
{
spacingMap.clear();
InStream inFile(file.c_str());
std::string line;
while (std::getline(inFile, line))
{
if (!line.empty())
{
char c = line[0];
line = line.substr(2, line.length());
std::istringstream is(line);
is >> spacingMap[c];
}
}
}
int BitmapText::getWidthOnScreen()
{
return text.size()*(fontDrawSize/2);
}
void BitmapText::setAlign(Align align)
{
this->align = align;
}
std::string BitmapText::getText()
{
return this->text;
}
void BitmapText::setText(const std::string &text)
{
this->text = text;
formatText();
}
void BitmapText::setWidth(int width)
{
textWidth = width;
}
int BitmapText::getSetWidth()
{
return textWidth;
}
float BitmapText::getHeight()
{
float sz = bmpFont->font.GetCharHeight('A') * bmpFont->scale;
return lines.size()*sz;
}
void BitmapText::formatText()
{
std::string text;
text = this->text;
lines.clear();
std::string currentLine;
int lastSpace = -1;
int currentWidth = 0;
alignWidth = 0;
for (int i = 0; i < text.size(); i++)
{
//currentWidth += spacingMap[text[i]]*fontDrawSize;
float sz = bmpFont->font.GetCharWidth(text[i])*bmpFont->scale;
currentWidth += sz;
if (currentWidth+sz >= textWidth || text[i] == '\n')
{
if (text[i] == '\n')
{
lastSpace = i;
}
lines.push_back(text.substr(0, lastSpace));
int tsz = text.size();
text = text.substr(lastSpace+1, tsz);
i = 0;
alignWidth = currentWidth;
currentWidth = 0;
lastSpace = 0;
continue;
}
if (text[i] == ' ')
{
lastSpace = i;
}
}
if (alignWidth == 0)
alignWidth = currentWidth;
if (!text.empty() && (text.size() > 1 || text[0] != ' '))
{
lines.push_back(text);
}
colorIndices.clear();
}
void BitmapText::setBitmapFontEffect(BitmapFontEffect bfe)
{
this->bfe = bfe;
}
void BitmapText::updateWordColoring()
{
colorIndices.resize(lines.size());
for (int i = 0; i < colorIndices.size(); i++)
{
colorIndices[i].resize(lines[i].size());
for (int j = 0; j < colorIndices[i].size(); j++)
{
colorIndices[i][j] = Vector(1,1,1);
}
}
/*
for (int i = 0; i < lines.size(); i++)
{
int c = 0;
for (int t = 0; t < dsq->continuity.wordColoring.size(); t++)
{
WordColoring *w = &dsq->continuity.wordColoring[t];
if ((c = lines[i].find(w->word)) != std::string::npos)
{
for (int j = c; j < c + w->word.size(); j++)
{
colorIndices[i][j] = w->color;
}
}
}
}
*/
//lines.push_back(text);
}
bool BitmapText::isEmpty()
{
return lines.empty();
}
void BitmapText::scrollText(const std::string &text, float scrollSpeed)
{
if (text.empty()) return;
this->scrollSpeed = scrollSpeed;
scrollDelay = scrollSpeed;
this->text = text;
scrolling = true;
formatText();
currentScrollLine = 0;
currentScrollChar = 0;
}
void BitmapText::setFontSize(int sz)
{
this->fontDrawSize = sz;
}
void BitmapText::onUpdate(float dt)
{
bfePass = 0;
RenderObject::onUpdate(dt);
if (scrollDelay > 0 && scrolling)
{
if (lines.empty())
{
currentScrollLine = 0;
scrolling = false;
scrollDelay = 0;
}
else
{
scrollDelay -= dt;
while (scrollDelay <= 0)
{
float diff = scrollDelay;
scrollDelay = scrollSpeed;
scrollDelay += diff;
currentScrollChar ++;
if (currentScrollChar >= lines[currentScrollLine].size())
{
currentScrollLine++;
currentScrollChar = 0;
if (currentScrollLine >= lines.size())
{
currentScrollLine = 0;
scrolling = false;
}
}
}
}
}
}
Vector BitmapText::getColorIndex(int i, int j)
{
Vector c(1,1,1);
if (!(i < 0 || j < 0))
{
if ( i < colorIndices.size() && j < colorIndices[i].size())
{
c = colorIndices[i][j];
}
}
return c;
}
void BitmapText::onRender()
{
if (!bmpFont) return;
float top_color[3] = {bmpFont->fontTopColor.x*color.x, bmpFont->fontTopColor.y*color.y, bmpFont->fontTopColor.z*color.z};
float bottom_color[3] = {bmpFont->fontBtmColor.x*color.x, bmpFont->fontBtmColor.y*color.y, bmpFont->fontBtmColor.z*color.z};
#ifdef BBGE_BUILD_OPENGL
glEnable(GL_TEXTURE_2D);
/*
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
*/
//glDisable(GL_CULL_FACE);
//glScalef(1, -1, 0);
bmpFont->font.Begin();
if (fontTextureTest) fontTextureTest->apply();
if (bmpFont->overrideTexture) bmpFont->overrideTexture->apply();
float y=0;
float x=0;
float adj = bmpFont->font.GetCharHeight('A') * bmpFont->scale;
if (scrolling)
{
for (int i = 0; i <= currentScrollLine; i++)
{
std::string theLine = lines[i];
if (i == currentScrollLine)
theLine = theLine.substr(0, currentScrollChar);
x=0;
if (align == ALIGN_CENTER)
{
std::pair<int, int> sz;
bmpFont->font.GetStringSize(lines[i], &sz);
x = -sz.first*0.5f*bmpFont->scale;
}
float la = 1.0f-(scrollDelay/scrollSpeed);
/*
std::ostringstream os;
os << "la: " << la;
debugLog(os.str());
*/
bmpFont->font.DrawString(theLine, bmpFont->scale, x, y, top_color, bottom_color, alpha.x, la);
y += adj;
}
}
else
{
for (int i = 0; i < lines.size(); i++)
{
x=0;
if (align == ALIGN_CENTER)
{
std::pair<int, int> sz;
bmpFont->font.GetStringSize(lines[i], &sz);
x = -sz.first*0.5f*bmpFont->scale;
}
bmpFont->font.DrawString(lines[i], bmpFont->scale, x, y, top_color, bottom_color, alpha.x, 1);
y += adj;
}
}
//glEnable(GL_CULL_FACE);
glBindTexture(GL_TEXTURE_2D, 0);
#endif
}
void BitmapText::unloadDevice()
{
RenderObject::unloadDevice();
}
void BitmapText::reloadDevice()
{
RenderObject::reloadDevice();
setText(this->text);
}
void BitmapText::render()
{
RenderObject::render();
if (!bfePass)
{
if (bfe == BFE_SHADOWBLUR)
{
InterpolatedVector oldAlpha = alpha, oldPos = position;
Vector adjust(rand()%5-2, rand()%5-2+2);
position += adjust;
alpha *= 0.4f;
bfePass = 1;
RenderObject::render();
alpha = oldAlpha;
position = oldPos;
}
}
}
void BitmapText::stopScrollingText()
{
scrolling = false;
}
bool BitmapText::isScrollingText()
{
return scrolling;
}
int BitmapText::getNumLines()
{
return lines.size();
}
/*
BitmapText::BitmapText() : RenderObject()
{
cull = false;
followCamera = 1;
scrollSpeed = 0.1f;
}
void BitmapText::scrollText(const std::string &text, float scrollSpeed)
{
setText(text);
this->scrollSpeed = scrollSpeed;
}
void BitmapText::setText(const std::string &text)
{
this->text = text;
}
std::string BitmapText::getText()
{
return text;
}
void BitmapText::onRender()
{
CTextDrawer::GetSingleton().SetColor(color.x, color.y, color.z, alpha.getValue());
dsq->print(position.x, 600 - (position.y + 16*2), text);
}
*/