131 lines
4.1 KiB
C++
131 lines
4.1 KiB
C++
/**
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* @file llfontgl.h
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* @author Andrii Kleshchev
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* @brief Buffer storage for font rendering.
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*
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* $LicenseInfo:firstyear=2001&license=viewerlgpl$
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* Second Life Viewer Source Code
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* Copyright (C) 2010, Linden Research, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation;
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* version 2.1 of the License only.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*
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* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
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* $/LicenseInfo$
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*/
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#ifndef LL_LLFONTVERTEXBUFFER_H
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#define LL_LLFONTVERTEXBUFFER_H
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#include "llfontgl.h"
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class LLVertexBufferData;
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class LLFontVertexBuffer
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{
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public:
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LLFontVertexBuffer();
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~LLFontVertexBuffer();
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void reset();
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S32 render(const LLFontGL* fontp,
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const LLWString& text,
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S32 begin_offset,
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LLRect rect,
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const LLColor4& color,
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LLFontGL::HAlign halign = LLFontGL::LEFT, LLFontGL::VAlign valign = LLFontGL::BASELINE,
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U8 style = LLFontGL::NORMAL,
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LLFontGL::ShadowType shadow = LLFontGL::NO_SHADOW,
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S32 max_chars = S32_MAX, S32 max_pixels = S32_MAX,
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F32* right_x = NULL,
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bool use_ellipses = false,
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bool use_color = true);
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S32 render(const LLFontGL* fontp,
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const LLWString& text,
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S32 begin_offset,
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LLRectf rect,
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const LLColor4& color,
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LLFontGL::HAlign halign = LLFontGL::LEFT, LLFontGL::VAlign valign = LLFontGL::BASELINE,
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U8 style = LLFontGL::NORMAL,
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LLFontGL::ShadowType shadow = LLFontGL::NO_SHADOW,
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S32 max_chars = S32_MAX,
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F32* right_x = NULL,
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bool use_ellipses = false,
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bool use_color = true);
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S32 render(const LLFontGL* fontp,
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const LLWString& text,
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S32 begin_offset,
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F32 x, F32 y,
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const LLColor4& color,
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LLFontGL::HAlign halign = LLFontGL::LEFT, LLFontGL::VAlign valign = LLFontGL::BASELINE,
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U8 style = LLFontGL::NORMAL,
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LLFontGL::ShadowType shadow = LLFontGL::NO_SHADOW,
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S32 max_chars = S32_MAX, S32 max_pixels = S32_MAX,
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F32* right_x = NULL,
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bool use_ellipses = false,
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bool use_color = true);
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static void enableBufferCollection(bool enable) { sEnableBufferCollection = enable; }
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private:
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void genBuffers(const LLFontGL* fontp,
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const LLWString& text,
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S32 begin_offset,
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F32 x, F32 y,
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const LLColor4& color,
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LLFontGL::HAlign halign, LLFontGL::VAlign valign,
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U8 style,
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LLFontGL::ShadowType shadow,
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S32 max_chars, S32 max_pixels,
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F32* right_x,
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bool use_ellipses,
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bool use_color);
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void renderBuffers();
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std::list<LLVertexBufferData> mBufferList;
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S32 mChars = 0;
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const LLFontGL *mLastFont = nullptr;
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S32 mLastOffset = 0;
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S32 mLastMaxChars = 0;
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S32 mLastMaxPixels = 0;
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F32 mLastX = 0.f;
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F32 mLastY = 0.f;
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LLColor4 mLastColor;
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LLFontGL::HAlign mLastHalign = LLFontGL::LEFT;
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LLFontGL::VAlign mLastValign = LLFontGL::BASELINE;
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U8 mLastStyle = LLFontGL::NORMAL;
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LLFontGL::ShadowType mLastShadow = LLFontGL::NO_SHADOW;
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F32 mLastRightX = 0.f;
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// LLFontGL's statics
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F32 mLastScaleX = 1.f;
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F32 mLastScaleY = 1.f;
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F32 mLastVertDPI = 0.f;
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F32 mLastHorizDPI = 0.f;
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S32 mLastResGeneration = 0;
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LLCoordGL mLastOrigin;
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// Adding new characters to bitmap cache can alter value from getBitmapWidth();
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// which alters whole string. So rerender when new characters were added to cache.
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S32 mLastFontCacheGen = 0;
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static bool sEnableBufferCollection;
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};
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#endif
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