summaryrefslogtreecommitdiff
path: root/indra/llrender/llimagegl.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'indra/llrender/llimagegl.cpp')
-rw-r--r--indra/llrender/llimagegl.cpp153
1 files changed, 114 insertions, 39 deletions
diff --git a/indra/llrender/llimagegl.cpp b/indra/llrender/llimagegl.cpp
index ff47c57c70..9d037f2565 100644
--- a/indra/llrender/llimagegl.cpp
+++ b/indra/llrender/llimagegl.cpp
@@ -2,31 +2,25 @@
* @file llimagegl.cpp
* @brief Generic GL image handler
*
- * $LicenseInfo:firstyear=2001&license=viewergpl$
- *
- * Copyright (c) 2001-2009, Linden Research, Inc.
- *
+ * $LicenseInfo:firstyear=2001&license=viewerlgpl$
* Second Life Viewer Source Code
- * The source code in this file ("Source Code") is provided by Linden Lab
- * to you under the terms of the GNU General Public License, version 2.0
- * ("GPL"), unless you have obtained a separate licensing agreement
- * ("Other License"), formally executed by you and Linden Lab. Terms of
- * the GPL can be found in doc/GPL-license.txt in this distribution, or
- * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
+ * Copyright (C) 2010, Linden Research, Inc.
*
- * There are special exceptions to the terms and conditions of the GPL as
- * it is applied to this Source Code. View the full text of the exception
- * in the file doc/FLOSS-exception.txt in this software distribution, or
- * online at
- * http://secondlifegrid.net/programs/open_source/licensing/flossexception
+ * 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.
*
- * By copying, modifying or distributing this software, you acknowledge
- * that you have read and understood your obligations described above,
- * and agree to abide by those obligations.
+ * 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.
*
- * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
- * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
- * COMPLETENESS OR PERFORMANCE.
+ * 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
* $/LicenseInfo$
*/
@@ -109,11 +103,20 @@ void LLImageGL::checkTexSize(bool forced) const
{
if ((forced || gDebugGL) && mTarget == GL_TEXTURE_2D)
{
+ {
+ //check viewport
+ GLint vp[4] ;
+ glGetIntegerv(GL_VIEWPORT, vp) ;
+ llcallstacks << "viewport: " << vp[0] << " : " << vp[1] << " : " << vp[2] << " : " << vp[3] << llcallstacksendl ;
+ }
+
GLint texname;
glGetIntegerv(GL_TEXTURE_BINDING_2D, &texname);
BOOL error = FALSE;
if (texname != mTexName)
{
+ llinfos << "Bound: " << texname << " Should bind: " << mTexName << " Default: " << LLImageGL::sDefaultGLTexture->getTexName() << llendl;
+
error = TRUE;
if (gDebugSession)
{
@@ -141,12 +144,12 @@ void LLImageGL::checkTexSize(bool forced) const
if (gDebugSession)
{
gFailLog << "wrong texture size and discard level!" <<
- mWidth << " Height: " << mHeight << " Current Level: " << mCurrentDiscardLevel << std::endl;
+ mWidth << " Height: " << mHeight << " Current Level: " << (S32)mCurrentDiscardLevel << std::endl;
}
else
{
llerrs << "wrong texture size and discard level: width: " <<
- mWidth << " Height: " << mHeight << " Current Level: " << mCurrentDiscardLevel << llendl ;
+ mWidth << " Height: " << mHeight << " Current Level: " << (S32)mCurrentDiscardLevel << llendl ;
}
}
@@ -1048,8 +1051,13 @@ BOOL LLImageGL::setSubImageFromFrameBuffer(S32 fb_x, S32 fb_y, S32 x_pos, S32 y_
{
if (gGL.getTexUnit(0)->bind(this, false, true))
{
- checkTexSize(true) ;
- llcallstacks << fb_x << " : " << fb_y << " : " << x_pos << " : " << y_pos << " : " << width << " : " << height << llcallstacksendl ;
+ if(gGLManager.mDebugGPU)
+ {
+ llinfos << "Calling glCopyTexSubImage2D(...)" << llendl ;
+ checkTexSize(true) ;
+ llcallstacks << fb_x << " : " << fb_y << " : " << x_pos << " : " << y_pos << " : " << width << " : " << height <<
+ " : " << (S32)mComponents << llcallstacksendl ;
+ }
glCopyTexSubImage2D(GL_TEXTURE_2D, 0, fb_x, fb_y, x_pos, y_pos, width, height);
mGLTextureCreated = true;
@@ -1645,7 +1653,7 @@ void LLImageGL::calcAlphaChannelOffsetAndStride()
}
}
-void LLImageGL::analyzeAlpha(const void* data_in, S32 w, S32 h)
+void LLImageGL::analyzeAlpha(const void* data_in, U32 w, U32 h)
{
if(!mNeedsAlphaAndPickMask)
{
@@ -1653,26 +1661,91 @@ void LLImageGL::analyzeAlpha(const void* data_in, S32 w, S32 h)
}
U32 length = w * h;
- const GLubyte* current = ((const GLubyte*) data_in) + mAlphaOffset ;
+ U32 alphatotal = 0;
- S32 sample[16];
- memset(sample, 0, sizeof(S32)*16);
-
- for (U32 i = 0; i < length; i++)
+ U32 sample[16];
+ memset(sample, 0, sizeof(U32)*16);
+
+ // generate histogram of quantized alpha.
+ // also add-in the histogram of a 2x2 box-sampled version. The idea is
+ // this will mid-skew the data (and thus increase the chances of not
+ // being used as a mask) from high-frequency alpha maps which
+ // suffer the worst from aliasing when used as alpha masks.
+ if (w >= 2 && h >= 2)
+ {
+ llassert(w%2 == 0);
+ llassert(h%2 == 0);
+ const GLubyte* rowstart = ((const GLubyte*) data_in) + mAlphaOffset;
+ for (U32 y = 0; y < h; y+=2)
+ {
+ const GLubyte* current = rowstart;
+ for (U32 x = 0; x < w; x+=2)
+ {
+ const U32 s1 = current[0];
+ alphatotal += s1;
+ const U32 s2 = current[w * mAlphaStride];
+ alphatotal += s2;
+ current += mAlphaStride;
+ const U32 s3 = current[0];
+ alphatotal += s3;
+ const U32 s4 = current[w * mAlphaStride];
+ alphatotal += s4;
+ current += mAlphaStride;
+
+ ++sample[s1/16];
+ ++sample[s2/16];
+ ++sample[s3/16];
+ ++sample[s4/16];
+
+ const U32 asum = (s1+s2+s3+s4);
+ alphatotal += asum;
+ sample[asum/(16*4)] += 4;
+ }
+
+ rowstart += 2 * w * mAlphaStride;
+ }
+ length *= 2; // we sampled everything twice, essentially
+ }
+ else
{
- ++sample[*current/16];
- current += mAlphaStride ;
+ const GLubyte* current = ((const GLubyte*) data_in) + mAlphaOffset;
+ for (U32 i = 0; i < length; i++)
+ {
+ const U32 s1 = *current;
+ alphatotal += s1;
+ ++sample[s1/16];
+ current += mAlphaStride;
+ }
}
+
+ // if more than 1/16th of alpha samples are mid-range, this
+ // shouldn't be treated as a 1-bit mask
- U32 total = 0;
+ // also, if all of the alpha samples are clumped on one half
+ // of the range (but not at an absolute extreme), then consider
+ // this to be an intentional effect and don't treat as a mask.
+
+ U32 midrangetotal = 0;
for (U32 i = 4; i < 11; i++)
{
- total += sample[i];
+ midrangetotal += sample[i];
+ }
+ U32 lowerhalftotal = 0;
+ for (U32 i = 0; i < 8; i++)
+ {
+ lowerhalftotal += sample[i];
+ }
+ U32 upperhalftotal = 0;
+ for (U32 i = 8; i < 16; i++)
+ {
+ upperhalftotal += sample[i];
}
- if (total > length/16)
+ if (midrangetotal > length/16 || // lots of midrange, or
+ (lowerhalftotal == length && alphatotal != 0) || // all close to transparent but not all totally transparent, or
+ (upperhalftotal == length && alphatotal != 255*length)) // all close to opaque but not all totally opaque
{
- mIsMask = FALSE;
+ mIsMask = FALSE; // not suitable for masking
}
else
{
@@ -1748,7 +1821,8 @@ BOOL LLImageGL::getMask(const LLVector2 &tc)
{
LL_WARNS_ONCE("render") << "Ugh, non-finite u/v in mask pick" << LL_ENDL;
u = v = 0.f;
- llassert(false);
+ // removing assert per EXT-4388
+ // llassert(false);
}
if (LL_UNLIKELY(u < 0.f || u > 1.f ||
@@ -1756,7 +1830,8 @@ BOOL LLImageGL::getMask(const LLVector2 &tc)
{
LL_WARNS_ONCE("render") << "Ugh, u/v out of range in image mask pick" << LL_ENDL;
u = v = 0.f;
- llassert(false);
+ // removing assert per EXT-4388
+ // llassert(false);
}
S32 x = llfloor(u * mPickMaskWidth);
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-28 07:09:35 +0000