diff options
Diffstat (limited to 'indra/llrender/llrendertarget.cpp')
| -rw-r--r-- | indra/llrender/llrendertarget.cpp | 87 |
1 files changed, 57 insertions, 30 deletions
diff --git a/indra/llrender/llrendertarget.cpp b/indra/llrender/llrendertarget.cpp index 7f0643c3e8..9cd7527d3e 100644 --- a/indra/llrender/llrendertarget.cpp +++ b/indra/llrender/llrendertarget.cpp @@ -1,25 +1,25 @@ -/** +/** * @file llrendertarget.cpp * @brief LLRenderTarget implementation * * $LicenseInfo:firstyear=2001&license=viewerlgpl$ * 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 * $/LicenseInfo$ */ @@ -44,7 +44,7 @@ void check_framebuffer_status() break; default: LL_WARNS() << "check_framebuffer_status failed -- " << std::hex << status << LL_ENDL; - ll_fail("check_framebuffer_status failed"); + ll_fail("check_framebuffer_status failed"); break; } } @@ -75,10 +75,10 @@ LLRenderTarget::~LLRenderTarget() } void LLRenderTarget::resize(U32 resx, U32 resy) -{ +{ //for accounting, get the number of pixels added/subtracted S32 pix_diff = (resx*resy)-(mResX*mResY); - + mResX = resx; mResY = resy; @@ -92,7 +92,7 @@ void LLRenderTarget::resize(U32 resx, U32 resy) } if (mDepth) - { + { gGL.getTexUnit(0)->bindManual(mUsage, mDepth); U32 internal_type = LLTexUnit::getInternalType(mUsage); LLImageGL::setManualImage(internal_type, 0, GL_DEPTH_COMPONENT24, mResX, mResY, GL_DEPTH_COMPONENT, GL_UNSIGNED_INT, NULL, false); @@ -100,7 +100,7 @@ void LLRenderTarget::resize(U32 resx, U32 resy) sBytesAllocated += pix_diff*4; } } - + bool LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, LLTexUnit::eTextureType usage, LLTexUnit::eTextureMipGeneration generateMipMaps) { @@ -112,7 +112,7 @@ bool LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, LLT resy = llmin(resy, (U32) gGLManager.mGLMaxTextureSize); release(); - + mResX = resx; mResY = resy; @@ -125,7 +125,7 @@ bool LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, LLT // Calculate the number of mip levels based upon resolution that we should have. mMipLevels = 1 + floor(log10((float)llmax(mResX, mResY))/log10(2.0)); } - + if (depth) { if (!allocateDepth()) @@ -140,12 +140,12 @@ bool LLRenderTarget::allocate(U32 resx, U32 resy, U32 color_fmt, bool depth, LLT if (mDepth) { glBindFramebuffer(GL_FRAMEBUFFER, mFBO); - + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), mDepth, 0); glBindFramebuffer(GL_FRAMEBUFFER, sCurFBO); } - + return addColorAttachment(color_fmt); } @@ -190,7 +190,7 @@ void LLRenderTarget::releaseColorAttachment() llassert(!isBoundInStack()); llassert(mTex.size() == 1); //cannot use releaseColorAttachment with LLRenderTarget managed color targets llassert(mFBO != 0); // mFBO must be valid - + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, LLTexUnit::getInternalType(mUsage), 0, 0); glBindFramebuffer(GL_FRAMEBUFFER, sCurFBO); @@ -238,12 +238,12 @@ bool LLRenderTarget::addColorAttachment(U32 color_fmt) return false; } } - + sBytesAllocated += mResX*mResY*4; stop_glerror(); - + if (offset == 0) { //use bilinear filtering on single texture render targets that aren't multisampled gGL.getTexUnit(0)->setTextureFilteringOption(LLTexUnit::TFO_BILINEAR); @@ -266,15 +266,15 @@ bool LLRenderTarget::addColorAttachment(U32 color_fmt) gGL.getTexUnit(0)->setTextureAddressMode(LLTexUnit::TAM_CLAMP); stop_glerror(); } - + if (mFBO) { glBindFramebuffer(GL_FRAMEBUFFER, mFBO); glFramebufferTexture2D(GL_FRAMEBUFFER, GL_COLOR_ATTACHMENT0+offset, LLTexUnit::getInternalType(mUsage), tex, 0); - + check_framebuffer_status(); - + glBindFramebuffer(GL_FRAMEBUFFER, sCurFBO); } @@ -286,8 +286,8 @@ bool LLRenderTarget::addColorAttachment(U32 color_fmt) bindTarget(); flush(); } - - + + return true; } @@ -296,7 +296,7 @@ bool LLRenderTarget::allocateDepth() LL_PROFILE_ZONE_SCOPED_CATEGORY_DISPLAY; LLImageGL::generateTextures(1, &mDepth); gGL.getTexUnit(0)->bindManual(mUsage, mDepth); - + U32 internal_type = LLTexUnit::getInternalType(mUsage); stop_glerror(); clear_glerror(); @@ -336,7 +336,7 @@ void LLRenderTarget::shareDepthBuffer(LLRenderTarget& target) if (mDepth) { glBindFramebuffer(GL_FRAMEBUFFER, target.mFBO); - + glFramebufferTexture2D(GL_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, LLTexUnit::getInternalType(mUsage), mDepth, 0); check_framebuffer_status(); @@ -355,7 +355,7 @@ void LLRenderTarget::release() if (mDepth) { LLImageGL::deleteTextures(1, &mDepth); - + mDepth = 0; sBytesAllocated -= mResX*mResY*4; @@ -408,7 +408,7 @@ void LLRenderTarget::release() mTex.clear(); mInternalFormat.clear(); - + mResX = mResY = 0; } @@ -417,7 +417,7 @@ void LLRenderTarget::bindTarget() LL_PROFILE_GPU_ZONE("bindTarget"); llassert(mFBO); llassert(!isBoundInStack()); - + glBindFramebuffer(GL_FRAMEBUFFER, mFBO); sCurFBO = mFBO; @@ -427,7 +427,7 @@ void LLRenderTarget::bindTarget() GL_COLOR_ATTACHMENT2, GL_COLOR_ATTACHMENT3}; glDrawBuffers(mTex.size(), drawbuffers); - + if (mTex.empty()) { //no color buffer to draw to glDrawBuffer(GL_NONE); @@ -452,7 +452,7 @@ void LLRenderTarget::clear(U32 mask_in) if (mUseDepth) { mask |= GL_DEPTH_BUFFER_BIT; - + } if (mFBO) { @@ -560,11 +560,38 @@ bool LLRenderTarget::isBoundInStack() const { LLRenderTarget* cur = sBoundTarget; while (cur && cur != this) - { + { cur = cur->mPreviousRT; } return cur == this; } +void LLRenderTarget::swapFBORefs(LLRenderTarget& other) +{ + // Must be initialized + llassert(mFBO); + llassert(other.mFBO); + // Must be unbound + // *NOTE: mPreviousRT can be non-null even if this target is unbound - presumably for debugging purposes? + llassert(sCurFBO != mFBO); + llassert(sCurFBO != other.mFBO); + llassert(!isBoundInStack()); + llassert(!other.isBoundInStack()); + + // Must be same type + llassert(sUseFBO == other.sUseFBO); + llassert(mResX == other.mResX); + llassert(mResY == other.mResY); + llassert(mInternalFormat == other.mInternalFormat); + llassert(mTex.size() == other.mTex.size()); + llassert(mDepth == other.mDepth); + llassert(mUseDepth == other.mUseDepth); + llassert(mGenerateMipMaps == other.mGenerateMipMaps); + llassert(mMipLevels == other.mMipLevels); + llassert(mUsage == other.mUsage); + + std::swap(mFBO, other.mFBO); + std::swap(mTex, other.mTex); +} |