Imported existing code

indra/newview/lldrawpoolalpha.cpp

@@ -0,0 +1,390 @@
+/** 
+ * @file lldrawpoolalpha.cpp
+ * @brief LLDrawPoolAlpha class implementation
+ *
+ * $LicenseInfo:firstyear=2002&license=viewergpl$
+ * 
+ * Copyright (c) 2002-2009, Linden Research, Inc.
+ * 
+ * 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
+ * 
+ * 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
+ * 
+ * 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.
+ * 
+ * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
+ * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
+ * COMPLETENESS OR PERFORMANCE.
+ * $/LicenseInfo$
+ */
+
+#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 "llagent.h"
+#include "lldrawable.h"
+#include "llface.h"
+#include "llviewercamera.h"
+#include "llviewerimagelist.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)
+{
+
+}
+
+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)
+{
+	gGL.setAlphaRejectSettings(LLRender::CF_GREATER, 0.4f);
+	{
+		LLFastTimer t(LLFastTimer::FTM_RENDER_GRASS);
+		gDeferredTreeProgram.bind();
+		LLGLEnable test(GL_ALPHA_TEST);
+		//render alpha masked objects
+		LLRenderPass::renderTexture(LLRenderPass::PASS_ALPHA_MASK, getVertexDataMask());
+	}			
+	gGL.setAlphaRejectSettings(LLRender::CF_DEFAULT);
+}
+
+void LLDrawPoolAlpha::renderDeferred(S32 pass)
+{
+	
+}
+
+
+S32 LLDrawPoolAlpha::getNumPostDeferredPasses() 
+{ 
+	return 1; 
+}
+
+void LLDrawPoolAlpha::beginPostDeferredPass(S32 pass) 
+{ 
+	LLFastTimer t(LLFastTimer::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(LLFastTimer::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(LLFastTimer::FTM_RENDER_ALPHA);
+	LLRenderPass::endRenderPass(pass);
+
+	if(gPipeline.canUseWindLightShaders()) 
+	{
+		LLGLSLShader::bindNoShader();
+	}
+}
+
+void LLDrawPoolAlpha::render(S32 pass)
+{
+	LLFastTimer t(LLFastTimer::FTM_RENDER_ALPHA);
+
+	LLGLSPipelineAlpha gls_pipeline_alpha;
+
+	if (LLPipeline::sFastAlpha && !deferred_render)
+	{
+		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);
+	renderAlpha(getVertexDataMask());
+
+	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);
+		LLViewerImage::sSmokeImagep->addTextureStats(1024.f*1024.f);
+		gGL.getTexUnit(0)->bind(LLViewerImage::sSmokeImagep.get(), 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(LLRender::TRIANGLES, params.mStart, params.mEnd, params.mCount, params.mOffset);
+				gPipeline.addTrianglesDrawn(params.mCount/3);
+			}
+		}
+	}
+}
+
+void LLDrawPoolAlpha::renderAlpha(U32 mask)
+{
+	BOOL initialized_lighting = FALSE;
+	BOOL light_enabled = TRUE;
+	//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;
+		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;
+
+				LLRenderPass::applyModelMatrix(params);
+
+				if (params.mTexture.notNull())
+				{
+					gGL.getTexUnit(0)->activate();
+					gGL.getTexUnit(0)->bind(params.mTexture.get());
+
+					if (params.mTextureMatrix)
+					{
+						glMatrixMode(GL_TEXTURE);
+						glLoadMatrixf((GLfloat*) params.mTextureMatrix->mMatrix);
+						gPipeline.mTextureMatrixOps++;
+					}
+				}
+
+				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);
+					}
+					current_shader = target_shader;
+					if (deferred_render)
+					{
+						gPipeline.bindDeferredShader(*current_shader);
+					}
+					else
+					{
+						current_shader->bind();
+					}
+				}
+				else if (!use_shaders && current_shader != NULL)
+				{
+					LLGLSLShader::bindNoShader();
+					if (deferred_render)
+					{
+						gPipeline.unbindDeferredShader(*current_shader);
+					}
+					current_shader = NULL;
+				}
+
+				if (params.mGroup)
+				{
+					params.mGroup->rebuildMesh();
+				}
+				params.mVertexBuffer->setBuffer(mask);
+				params.mVertexBuffer->drawRange(LLRender::TRIANGLES, params.mStart, params.mEnd, params.mCount, params.mOffset);
+				gPipeline.addTrianglesDrawn(params.mCount/3);
+
+				if (params.mTextureMatrix && params.mTexture.notNull())
+				{
+					gGL.getTexUnit(0)->activate();
+					glLoadIdentity();
+					glMatrixMode(GL_MODELVIEW);
+				}
+			}
+		}
+	}
+
+	if (!light_enabled)
+	{
+		gPipeline.enableLightsDynamic();
+	}
+}