diff options
Diffstat (limited to 'indra/llui/lllocalcliprect.cpp')
| -rw-r--r-- | indra/llui/lllocalcliprect.cpp | 220 |
1 files changed, 110 insertions, 110 deletions
diff --git a/indra/llui/lllocalcliprect.cpp b/indra/llui/lllocalcliprect.cpp index f8ccb807e6..6508106a9c 100644 --- a/indra/llui/lllocalcliprect.cpp +++ b/indra/llui/lllocalcliprect.cpp @@ -1,110 +1,110 @@ -/** -* @file lllocalcliprect.cpp -* -* $LicenseInfo:firstyear=2009&license=viewerlgpl$ -* Second Life Viewer Source Code -* Copyright (C) 2010, Linden Research, Inc. -* -* This library is free software; you can redistribute it and/or -* modify it under the terms of the GNU Lesser General Public -* License as published by the Free Software Foundation; -* version 2.1 of the License only. -* -* This library 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 -* Lesser General Public License for more details. -* -* You should have received a copy of the GNU Lesser General Public -* License along with this library; if not, write to the Free Software -* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA -* -* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA -* $/LicenseInfo$ -*/ -#include "linden_common.h" - -#include "lllocalcliprect.h" - -#include "llfontgl.h" -#include "llui.h" - -/*static*/ std::stack<LLRect> LLScreenClipRect::sClipRectStack; - - -LLScreenClipRect::LLScreenClipRect(const LLRect& rect, BOOL enabled) -: mScissorState(GL_SCISSOR_TEST), - mEnabled(enabled) -{ - if (mEnabled) - { - pushClipRect(rect); - mScissorState.setEnabled(!sClipRectStack.empty()); - updateScissorRegion(); - } -} - -LLScreenClipRect::~LLScreenClipRect() -{ - if (mEnabled) - { - popClipRect(); - updateScissorRegion(); - } -} - -//static -void LLScreenClipRect::pushClipRect(const LLRect& rect) -{ - LLRect combined_clip_rect = rect; - if (!sClipRectStack.empty()) - { - LLRect top = sClipRectStack.top(); - combined_clip_rect.intersectWith(top); - - if(combined_clip_rect.isEmpty()) - { - // avoid artifacts where zero area rects show up as lines - combined_clip_rect = LLRect::null; - } - } - sClipRectStack.push(combined_clip_rect); -} - -//static -void LLScreenClipRect::popClipRect() -{ - sClipRectStack.pop(); -} - -//static -void LLScreenClipRect::updateScissorRegion() -{ - if (sClipRectStack.empty()) return; - - // finish any deferred calls in the old clipping region - gGL.flush(); - - LLRect rect = sClipRectStack.top(); - stop_glerror(); - S32 x,y,w,h; - x = llfloor(rect.mLeft * LLUI::getScaleFactor().mV[VX]); - y = llfloor(rect.mBottom * LLUI::getScaleFactor().mV[VY]); - w = llmax(0, llceil(rect.getWidth() * LLUI::getScaleFactor().mV[VX])) + 1; - h = llmax(0, llceil(rect.getHeight() * LLUI::getScaleFactor().mV[VY])) + 1; - glScissor( x,y,w,h ); - stop_glerror(); -} - -//--------------------------------------------------------------------------- -// LLLocalClipRect -//--------------------------------------------------------------------------- -LLLocalClipRect::LLLocalClipRect(const LLRect& rect, BOOL enabled /* = TRUE */) -: LLScreenClipRect(LLRect(rect.mLeft + LLFontGL::sCurOrigin.mX, - rect.mTop + LLFontGL::sCurOrigin.mY, - rect.mRight + LLFontGL::sCurOrigin.mX, - rect.mBottom + LLFontGL::sCurOrigin.mY), enabled) -{} - -LLLocalClipRect::~LLLocalClipRect() -{} +/**
+* @file lllocalcliprect.cpp
+*
+* $LicenseInfo:firstyear=2009&license=viewerlgpl$
+* Second Life Viewer Source Code
+* Copyright (C) 2010, Linden Research, Inc.
+*
+* This library is free software; you can redistribute it and/or
+* modify it under the terms of the GNU Lesser General Public
+* License as published by the Free Software Foundation;
+* version 2.1 of the License only.
+*
+* This library 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
+* Lesser General Public License for more details.
+*
+* You should have received a copy of the GNU Lesser General Public
+* License along with this library; if not, write to the Free Software
+* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+*
+* Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+* $/LicenseInfo$
+*/
+#include "linden_common.h"
+
+#include "lllocalcliprect.h"
+
+#include "llfontgl.h"
+#include "llui.h"
+
+/*static*/ std::stack<LLRect> LLScreenClipRect::sClipRectStack;
+
+
+LLScreenClipRect::LLScreenClipRect(const LLRect& rect, bool enabled)
+: mScissorState(GL_SCISSOR_TEST),
+ mEnabled(enabled)
+{
+ if (mEnabled)
+ {
+ pushClipRect(rect);
+ mScissorState.setEnabled(!sClipRectStack.empty());
+ updateScissorRegion();
+ }
+}
+
+LLScreenClipRect::~LLScreenClipRect()
+{
+ if (mEnabled)
+ {
+ popClipRect();
+ updateScissorRegion();
+ }
+}
+
+//static
+void LLScreenClipRect::pushClipRect(const LLRect& rect)
+{
+ LLRect combined_clip_rect = rect;
+ if (!sClipRectStack.empty())
+ {
+ LLRect top = sClipRectStack.top();
+ combined_clip_rect.intersectWith(top);
+
+ if(combined_clip_rect.isEmpty())
+ {
+ // avoid artifacts where zero area rects show up as lines
+ combined_clip_rect = LLRect::null;
+ }
+ }
+ sClipRectStack.push(combined_clip_rect);
+}
+
+//static
+void LLScreenClipRect::popClipRect()
+{
+ sClipRectStack.pop();
+}
+
+//static
+void LLScreenClipRect::updateScissorRegion()
+{
+ if (sClipRectStack.empty()) return;
+
+ // finish any deferred calls in the old clipping region
+ gGL.flush();
+
+ LLRect rect = sClipRectStack.top();
+ stop_glerror();
+ S32 x,y,w,h;
+ x = llfloor(rect.mLeft * LLUI::getScaleFactor().mV[VX]);
+ y = llfloor(rect.mBottom * LLUI::getScaleFactor().mV[VY]);
+ w = llmax(0, llceil(rect.getWidth() * LLUI::getScaleFactor().mV[VX])) + 1;
+ h = llmax(0, llceil(rect.getHeight() * LLUI::getScaleFactor().mV[VY])) + 1;
+ glScissor( x,y,w,h );
+ stop_glerror();
+}
+
+//---------------------------------------------------------------------------
+// LLLocalClipRect
+//---------------------------------------------------------------------------
+LLLocalClipRect::LLLocalClipRect(const LLRect& rect, bool enabled /* = true */)
+: LLScreenClipRect(LLRect(rect.mLeft + LLFontGL::sCurOrigin.mX,
+ rect.mTop + LLFontGL::sCurOrigin.mY,
+ rect.mRight + LLFontGL::sCurOrigin.mX,
+ rect.mBottom + LLFontGL::sCurOrigin.mY), enabled)
+{}
+
+LLLocalClipRect::~LLLocalClipRect()
+{}
|