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phoenix-firestorm/indra/newview/lldrawpoolalpha.cpp

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/**
* @file lldrawpoolalpha.cpp
* @brief LLDrawPoolAlpha class implementation
*
* $LicenseInfo:firstyear=2002&license=viewerlgpl$
* 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 "llviewerprecompiledheaders.h"
#include "lldrawpoolalpha.h"
#include "llglheaders.h"
#include "llviewercontrol.h"
#include "llcriticaldamp.h"
#include "llfasttimer.h"
#include "llrender.h"
#include "llcubemap.h"
#include "llsky.h"
#include "lldrawable.h"
#include "llface.h"
#include "llviewercamera.h"
#include "llviewertexturelist.h" // For debugging
#include "llviewerobjectlist.h" // For debugging
#include "llviewerwindow.h"
#include "pipeline.h"
#include "llviewershadermgr.h"
#include "llviewerregion.h"
#include "lldrawpoolwater.h"
#include "llspatialpartition.h"
BOOL LLDrawPoolAlpha::sShowDebugAlpha = FALSE;
static BOOL deferred_render = FALSE;
LLDrawPoolAlpha::LLDrawPoolAlpha(U32 type) :
LLRenderPass(type), current_shader(NULL), target_shader(NULL),
simple_shader(NULL), fullbright_shader(NULL),
mColorSFactor(LLRender::BF_UNDEF), mColorDFactor(LLRender::BF_UNDEF),
mAlphaSFactor(LLRender::BF_UNDEF), mAlphaDFactor(LLRender::BF_UNDEF)
{
}
LLDrawPoolAlpha::~LLDrawPoolAlpha()
{
}
void LLDrawPoolAlpha::prerender()
{
mVertexShaderLevel = LLViewerShaderMgr::instance()->getVertexShaderLevel(LLViewerShaderMgr::SHADER_OBJECT);
}
S32 LLDrawPoolAlpha::getNumDeferredPasses()
{
return 1;
}
void LLDrawPoolAlpha::beginDeferredPass(S32 pass)
{
}
void LLDrawPoolAlpha::endDeferredPass(S32 pass)
{
}
void LLDrawPoolAlpha::renderDeferred(S32 pass)
{
gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.f);
{
LLFastTimer t(FTM_RENDER_GRASS);
gDeferredTreeProgram.bind();
LLGLEnable test(GL_ALPHA_TEST);
//render alpha masked objects
LLRenderPass::renderTexture(LLRenderPass::PASS_ALPHA_MASK, getVertexDataMask());
gDeferredTreeProgram.unbind();
}
gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
}
S32 LLDrawPoolAlpha::getNumPostDeferredPasses()
{
return 1;
}
void LLDrawPoolAlpha::beginPostDeferredPass(S32 pass)
{
LLFastTimer t(FTM_RENDER_ALPHA);
simple_shader = &gDeferredAlphaProgram;
fullbright_shader = &gDeferredFullbrightProgram;
deferred_render = TRUE;
if (mVertexShaderLevel > 0)
{
// Start out with no shaders.
current_shader = target_shader = NULL;
}
gPipeline.enableLightsDynamic();
}
void LLDrawPoolAlpha::endPostDeferredPass(S32 pass)
{
deferred_render = FALSE;
endRenderPass(pass);
}
void LLDrawPoolAlpha::renderPostDeferred(S32 pass)
{
render(pass);
}
void LLDrawPoolAlpha::beginRenderPass(S32 pass)
{
LLFastTimer t(FTM_RENDER_ALPHA);
if (LLPipeline::sUnderWaterRender)
{
simple_shader = &gObjectSimpleWaterProgram;
fullbright_shader = &gObjectFullbrightWaterProgram;
}
else
{
simple_shader = &gObjectSimpleProgram;
fullbright_shader = &gObjectFullbrightProgram;
}
if (mVertexShaderLevel > 0)
{
// Start out with no shaders.
current_shader = target_shader = NULL;
LLGLSLShader::bindNoShader();
}
gPipeline.enableLightsDynamic();
}
void LLDrawPoolAlpha::endRenderPass( S32 pass )
{
LLFastTimer t(FTM_RENDER_ALPHA);
LLRenderPass::endRenderPass(pass);
if(gPipeline.canUseWindLightShaders())
{
LLGLSLShader::bindNoShader();
}
}
void LLDrawPoolAlpha::render(S32 pass)
{
LLFastTimer t(FTM_RENDER_ALPHA);
LLGLSPipelineAlpha gls_pipeline_alpha;
gGL.setColorMask(true, true);
if (LLPipeline::sAutoMaskAlphaNonDeferred && !deferred_render)
{
mColorSFactor = LLRender::BF_ONE; // }
mColorDFactor = LLRender::BF_ZERO; // } these are like disabling blend on the color channels, but we're still blending on the alpha channel so that we can suppress glow
mAlphaSFactor = LLRender::BF_ZERO;
mAlphaDFactor = LLRender::BF_ZERO; // block (zero-out) glow where the alpha test succeeds
gGL.blendFunc(mColorSFactor, mColorDFactor, mAlphaSFactor, mAlphaDFactor);
gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.33f);
if (mVertexShaderLevel > 0)
{
if (!LLPipeline::sRenderDeferred)
{
simple_shader->bind();
pushBatches(LLRenderPass::PASS_ALPHA_MASK, getVertexDataMask());
}
fullbright_shader->bind();
pushBatches(LLRenderPass::PASS_FULLBRIGHT_ALPHA_MASK, getVertexDataMask());
LLGLSLShader::bindNoShader();
}
else
{
gPipeline.enableLightsFullbright(LLColor4(1,1,1,1));
pushBatches(LLRenderPass::PASS_FULLBRIGHT_ALPHA_MASK, getVertexDataMask());
gPipeline.enableLightsDynamic();
pushBatches(LLRenderPass::PASS_ALPHA_MASK, getVertexDataMask());
}
gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
}
LLGLDepthTest depth(GL_TRUE, LLDrawPoolWater::sSkipScreenCopy ? GL_TRUE : GL_FALSE);
mColorSFactor = LLRender::BF_SOURCE_ALPHA; // } regular alpha blend
mColorDFactor = LLRender::BF_ONE_MINUS_SOURCE_ALPHA; // }
mAlphaSFactor = LLRender::BF_ZERO; // } glow suppression
mAlphaDFactor = LLRender::BF_ONE_MINUS_SOURCE_ALPHA; // }
gGL.blendFunc(mColorSFactor, mColorDFactor, mAlphaSFactor, mAlphaDFactor);
renderAlpha(getVertexDataMask());
gGL.setColorMask(true, false);
if (deferred_render && current_shader != NULL)
{
gPipeline.unbindDeferredShader(*current_shader);
}
if (sShowDebugAlpha)
{
if(gPipeline.canUseWindLightShaders())
{
LLGLSLShader::bindNoShader();
}
gPipeline.enableLightsFullbright(LLColor4(1,1,1,1));
glColor4f(1,0,0,1);
LLViewerFetchedTexture::sSmokeImagep->addTextureStats(1024.f*1024.f);
gGL.getTexUnit(0)->bind(LLViewerFetchedTexture::sSmokeImagep, TRUE) ;
renderAlphaHighlight(LLVertexBuffer::MAP_VERTEX |
LLVertexBuffer::MAP_TEXCOORD0);
}
}
void LLDrawPoolAlpha::renderAlphaHighlight(U32 mask)
{
for (LLCullResult::sg_list_t::iterator i = gPipeline.beginAlphaGroups(); i != gPipeline.endAlphaGroups(); ++i)
{
LLSpatialGroup* group = *i;
if (group->mSpatialPartition->mRenderByGroup &&
!group->isDead())
{
LLSpatialGroup::drawmap_elem_t& draw_info = group->mDrawMap[LLRenderPass::PASS_ALPHA];
for (LLSpatialGroup::drawmap_elem_t::iterator k = draw_info.begin(); k != draw_info.end(); ++k)
{
LLDrawInfo& params = **k;
if (params.mParticle)
{
continue;
}
LLRenderPass::applyModelMatrix(params);
if (params.mGroup)
{
params.mGroup->rebuildMesh();
}
params.mVertexBuffer->setBuffer(mask);
params.mVertexBuffer->drawRange(params.mDrawMode, params.mStart, params.mEnd, params.mCount, params.mOffset);
gPipeline.addTrianglesDrawn(params.mCount, params.mDrawMode);
}
}
}
}
void LLDrawPoolAlpha::renderAlpha(U32 mask)
{
BOOL initialized_lighting = FALSE;
BOOL light_enabled = TRUE;
S32 diffuse_channel = 0;
//BOOL is_particle = FALSE;
BOOL use_shaders = (LLPipeline::sUnderWaterRender && gPipeline.canUseVertexShaders())
|| gPipeline.canUseWindLightShadersOnObjects();
// check to see if it's a particle and if it's "close"
{
if (LLPipeline::sImpostorRender)
{
gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.5f);
}
else
{
gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
}
}
for (LLCullResult::sg_list_t::iterator i = gPipeline.beginAlphaGroups(); i != gPipeline.endAlphaGroups(); ++i)
{
LLSpatialGroup* group = *i;
llassert(group);
llassert(group->mSpatialPartition);
if (group->mSpatialPartition->mRenderByGroup &&
!group->isDead())
{
bool draw_glow_for_this_partition = mVertexShaderLevel > 0 && // no shaders = no glow.
// All particle systems seem to come off the wire with texture entries which claim that they glow. This is probably a bug in the data. Suppress.
group->mSpatialPartition->mPartitionType != LLViewerRegion::PARTITION_PARTICLE &&
group->mSpatialPartition->mPartitionType != LLViewerRegion::PARTITION_CLOUD &&
group->mSpatialPartition->mPartitionType != LLViewerRegion::PARTITION_HUD_PARTICLE;
LLSpatialGroup::drawmap_elem_t& draw_info = group->mDrawMap[LLRenderPass::PASS_ALPHA];
for (LLSpatialGroup::drawmap_elem_t::iterator k = draw_info.begin(); k != draw_info.end(); ++k)
{
LLDrawInfo& params = **k;
LLRenderPass::applyModelMatrix(params);
{
if (params.mFullbright)
{
// Turn off lighting if it hasn't already been so.
if (light_enabled || !initialized_lighting)
{
initialized_lighting = TRUE;
if (use_shaders)
{
target_shader = fullbright_shader;
}
else
{
gPipeline.enableLightsFullbright(LLColor4(1,1,1,1));
}
light_enabled = FALSE;
}
}
// Turn on lighting if it isn't already.
else if (!light_enabled || !initialized_lighting)
{
initialized_lighting = TRUE;
if (use_shaders)
{
target_shader = simple_shader;
}
else
{
gPipeline.enableLightsDynamic();
}
light_enabled = TRUE;
}
// If we need shaders, and we're not ALREADY using the proper shader, then bind it
// (this way we won't rebind shaders unnecessarily).
if(use_shaders && (current_shader != target_shader))
{
llassert(target_shader != NULL);
if (deferred_render && current_shader != NULL)
{
gPipeline.unbindDeferredShader(*current_shader);
diffuse_channel = 0;
}
current_shader = target_shader;
if (deferred_render)
{
gPipeline.bindDeferredShader(*current_shader);
diffuse_channel = current_shader->enableTexture(LLViewerShaderMgr::DIFFUSE_MAP);
}
else
{
current_shader->bind();
}
}
else if (!use_shaders && current_shader != NULL)
{
if (deferred_render)
{
gPipeline.unbindDeferredShader(*current_shader);
diffuse_channel = 0;
}
LLGLSLShader::bindNoShader();
current_shader = NULL;
}
if (params.mGroup)
{
params.mGroup->rebuildMesh();
}
if (params.mTexture.notNull())
{
gGL.getTexUnit(diffuse_channel)->bind(params.mTexture.get());
if(params.mTexture.notNull())
{
params.mTexture->addTextureStats(params.mVSize);
}
if (params.mTextureMatrix)
{
gGL.getTexUnit(0)->activate();
glMatrixMode(GL_TEXTURE);
glLoadMatrixf((GLfloat*) params.mTextureMatrix->mMatrix);
gPipeline.mTextureMatrixOps++;
}
}
}
params.mVertexBuffer->setBuffer(mask);
params.mVertexBuffer->drawRange(params.mDrawMode, params.mStart, params.mEnd, params.mCount, params.mOffset);
gPipeline.addTrianglesDrawn(params.mCount, params.mDrawMode);
// If this alpha mesh has glow, then draw it a second time to add the destination-alpha (=glow). Interleaving these state-changing calls could be expensive, but glow must be drawn Z-sorted with alpha.
if (draw_glow_for_this_partition &&
params.mGlowColor.mV[3] > 0)
{
// install glow-accumulating blend mode
gGL.blendFunc(LLRender::BF_ZERO, LLRender::BF_ONE, // don't touch color
LLRender::BF_ONE, LLRender::BF_ONE); // add to alpha (glow)
// glow doesn't use vertex colors from the mesh data
params.mVertexBuffer->setBuffer(mask & ~LLVertexBuffer::MAP_COLOR);
glColor4ubv(params.mGlowColor.mV);
// do the actual drawing, again
params.mVertexBuffer->drawRange(params.mDrawMode, params.mStart, params.mEnd, params.mCount, params.mOffset);
gPipeline.addTrianglesDrawn(params.mCount, params.mDrawMode);
// restore our alpha blend mode
gGL.blendFunc(mColorSFactor, mColorDFactor, mAlphaSFactor, mAlphaDFactor);
}
if (params.mTextureMatrix && params.mTexture.notNull())
{
gGL.getTexUnit(0)->activate();
glLoadIdentity();
glMatrixMode(GL_MODELVIEW);
}
}
}
}
if (deferred_render && current_shader != NULL)
{
gPipeline.unbindDeferredShader(*current_shader);
LLVertexBuffer::unbind();
LLGLState::checkStates();
LLGLState::checkTextureChannels();
LLGLState::checkClientArrays();
}
if (!light_enabled)
{
gPipeline.enableLightsDynamic();
}
}
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