736696ac36
Sync light state, bound shader, and various gl context states similarly to render matrices. Texture handles now refcounted, as multiple viewer textures could ref the same handle (cubemaps do this) Clean up gl extension loading a bit. Not necessary, but only look for ARB variants if not included in current core version. Removed unused extensions. Use core shader api if supported, else use ARB. (FN signatures are identical. Just doing some pointer substitution to ARB if not core.) Attempt at improving VBO update batching. Subdata updates better batched to gether per-frame. There's probably other stuff I forgot that is in this changeset, too. Todo: Fix lightstate assertion when toggling fullscreen with shaders off.
112 lines
2.9 KiB
C++
112 lines
2.9 KiB
C++
/**
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* @file lllocalcliprect.cpp
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*
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* $LicenseInfo:firstyear=2009&license=viewerlgpl$
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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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#include "linden_common.h"
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#include "lllocalcliprect.h"
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#include "llfontgl.h"
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#include "llui.h"
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/*static*/ std::stack<LLRect> LLScreenClipRect::sClipRectStack;
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LLScreenClipRect::LLScreenClipRect(const LLRect& rect, BOOL enabled)
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: mScissorState(enabled),
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mEnabled(enabled),
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mRootScissorRect(gGL.getScissor())
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{
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if (mEnabled)
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{
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pushClipRect(rect);
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}
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}
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LLScreenClipRect::~LLScreenClipRect()
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{
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if (mEnabled)
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{
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popClipRect();
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}
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}
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void LLScreenClipRect::pushClipRect(const LLRect& rect)
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{
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LLRect combined_clip_rect = rect;
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if (!sClipRectStack.empty())
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{
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LLRect top = sClipRectStack.top();
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combined_clip_rect.intersectWith(top);
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if(combined_clip_rect.isEmpty())
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{
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// avoid artifacts where zero area rects show up as lines
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combined_clip_rect = LLRect::null;
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}
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}
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sClipRectStack.push(combined_clip_rect);
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updateScissorRegion();
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}
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void LLScreenClipRect::popClipRect()
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{
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sClipRectStack.pop();
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if (!sClipRectStack.empty())
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{
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updateScissorRegion();
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}
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else
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{
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gGL.setScissor(mRootScissorRect);
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}
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}
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// static
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void LLScreenClipRect::updateScissorRegion()
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{
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LLRect rect = sClipRectStack.top();
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stop_glerror();
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S32 x,y,w,h;
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x = llfloor(rect.mLeft * LLUI::getScaleFactor().mV[VX]);
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y = llfloor(rect.mBottom * LLUI::getScaleFactor().mV[VY]);
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w = llmax(0, llceil(rect.getWidth() * LLUI::getScaleFactor().mV[VX])) + 1;
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h = llmax(0, llceil(rect.getHeight() * LLUI::getScaleFactor().mV[VY])) + 1;
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gGL.setScissor( x,y,w,h );
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stop_glerror();
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}
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//---------------------------------------------------------------------------
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// LLLocalClipRect
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//---------------------------------------------------------------------------
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LLLocalClipRect::LLLocalClipRect(const LLRect& rect, BOOL enabled /* = TRUE */)
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: LLScreenClipRect(LLRect(rect.mLeft + LLFontGL::sCurOrigin.mX,
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rect.mTop + LLFontGL::sCurOrigin.mY,
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rect.mRight + LLFontGL::sCurOrigin.mX,
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rect.mBottom + LLFontGL::sCurOrigin.mY), enabled)
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{}
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LLLocalClipRect::~LLLocalClipRect()
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{}
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