added debug tools for visualizating texel density at various discard levels (current, requested, full)

6 files changed, 198 insertions, 1 deletions

diff --git a/indra/newview/llspatialpartition.cpp b/indra/newview/llspatialpartition.cpp
index 5d196a465f..5ef71fe6d9 100644
--- a/indra/newview/llspatialpartition.cpp
+++ b/indra/newview/llspatialpartition.cpp
@@ -3647,6 +3647,47 @@ void renderShadowFrusta(LLDrawInfo* params)
 	gGL.setSceneBlendType(LLRender::BT_ALPHA);
 }
 
+void renderTexelDensity(LLDrawInfo* params)
+{
+	LLGLEnable _(GL_BLEND);
+	if (LLViewerTexture::sDebugTexelsMode == LLViewerTexture::DEBUG_TEXELS_OFF
+		|| LLViewerTexture::sCheckerBoardImagep.isNull())
+	{
+		return;
+	}
+	LLViewerTexture* texturep = params->mTexture.get();
+	LLMatrix4 checkboard_matrix;
+	S32 discard_level = -1;
+	switch(LLViewerTexture::sDebugTexelsMode)
+	{
+	case LLViewerTexture::DEBUG_TEXELS_CURRENT:
+		discard_level = -1;
+		break;
+	case LLViewerTexture::DEBUG_TEXELS_DESIRED:
+		{
+			LLViewerFetchedTexture* fetched_texturep = dynamic_cast<LLViewerFetchedTexture*>(texturep);
+			discard_level = fetched_texturep ? fetched_texturep->getDesiredDiscardLevel() : -1;
+			break;
+		}
+	default:
+	case LLViewerTexture::DEBUG_TEXELS_FULL:
+		discard_level = 0;
+		break;
+	}
+
+	checkboard_matrix.initScale(LLVector3(texturep->getWidth(discard_level) / 8, texturep->getHeight(discard_level) / 8, 1.f));
+	gGL.getTexUnit(0)->activate();
+	gGL.matrixMode(LLRender::MM_TEXTURE);
+	gGL.loadMatrix((GLfloat*) checkboard_matrix.mMatrix);
+
+	gGL.getTexUnit(0)->bind(LLViewerTexture::sCheckerBoardImagep, TRUE);
+
+	pushVerts(params, LLVertexBuffer::MAP_VERTEX | LLVertexBuffer::MAP_TEXCOORD0);
+
+	gGL.loadIdentity();
+	gGL.matrixMode(LLRender::MM_MODELVIEW);
+}
+
 
 void renderLights(LLDrawable* drawablep)
 {
@@ -4097,6 +4138,10 @@ public:
 				{
 					renderShadowFrusta(draw_info);
 				}
+				if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY))
+				{
+					renderTexelDensity(draw_info);
+				}
 			}
 		}
 	}
@@ -4291,7 +4336,8 @@ void LLSpatialPartition::renderDebug()
 									  LLPipeline::RENDER_DEBUG_AGENT_TARGET |
 									  //LLPipeline::RENDER_DEBUG_BUILD_QUEUE |
 									  LLPipeline::RENDER_DEBUG_SHADOW_FRUSTA |
-									  LLPipeline::RENDER_DEBUG_RENDER_COMPLEXITY)) 
+									  LLPipeline::RENDER_DEBUG_RENDER_COMPLEXITY |
+									  LLPipeline::RENDER_DEBUG_TEXEL_DENSITY)) 
 	{
 		return;
 	}
diff --git a/indra/newview/llviewermenu.cpp b/indra/newview/llviewermenu.cpp
index 99540ccce9..6a54bc6e5f 100644
--- a/indra/newview/llviewermenu.cpp
+++ b/indra/newview/llviewermenu.cpp
@@ -861,6 +861,73 @@ class LLAdvancedCheckFeature : public view_listener_t
 }
 };
 
+class LLAdvancedCheckDisplayTextureDensity : public view_listener_t
+{
+	bool handleEvent(const LLSD& userdata)
+	{
+		std::string mode = userdata.asString();
+		if (!gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY))
+		{
+			return mode == "none";
+		}
+		if (mode == "current")
+		{
+			return LLViewerTexture::sDebugTexelsMode == LLViewerTexture::DEBUG_TEXELS_CURRENT;
+		}
+		else if (mode == "desired")
+		{
+			return LLViewerTexture::sDebugTexelsMode == LLViewerTexture::DEBUG_TEXELS_DESIRED;
+		}
+		else if (mode == "full")
+		{
+			return LLViewerTexture::sDebugTexelsMode == LLViewerTexture::DEBUG_TEXELS_FULL;
+		}
+		return false;
+	}
+};
+
+class LLAdvancedSetDisplayTextureDensity : public view_listener_t
+{
+	bool handleEvent(const LLSD& userdata)
+	{
+		std::string mode = userdata.asString();
+		if (mode == "none")
+		{
+			if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY) == TRUE) 
+			{
+				gPipeline.toggleRenderDebug((void*)LLPipeline::RENDER_DEBUG_TEXEL_DENSITY);
+			}
+			LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_OFF;
+		}
+		else if (mode == "current")
+		{
+			if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY) == FALSE) 
+			{
+				gPipeline.toggleRenderDebug((void*)LLPipeline::RENDER_DEBUG_TEXEL_DENSITY);
+			}
+			LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_CURRENT;
+		}
+		else if (mode == "desired")
+		{
+			if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY) == FALSE) 
+			{
+				gPipeline.toggleRenderDebug((void*)LLPipeline::RENDER_DEBUG_TEXEL_DENSITY);
+			}
+			gPipeline.setRenderDebugFeatureControl(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY, true);
+			LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_DESIRED;
+		}
+		else if (mode == "full")
+		{
+			if (gPipeline.hasRenderDebugMask(LLPipeline::RENDER_DEBUG_TEXEL_DENSITY) == FALSE) 
+			{
+				gPipeline.toggleRenderDebug((void*)LLPipeline::RENDER_DEBUG_TEXEL_DENSITY);
+			}
+			LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_FULL;
+		}
+		return true;
+	}
+};
+
 
 //////////////////
 // INFO DISPLAY //
@@ -975,6 +1042,10 @@ U32 info_display_from_string(std::string info_display)
 	{
 		return LLPipeline::RENDER_DEBUG_WIND_VECTORS;
 	}
+	else if ("texel density" == info_display)
+	{
+		return LLPipeline::RENDER_DEBUG_TEXEL_DENSITY;
+	}
 	else
 	{
 		return 0;
@@ -8120,6 +8191,10 @@ void initialize_menus()
 	//// Advanced > Render > Features
 	view_listener_t::addMenu(new LLAdvancedToggleFeature(), "Advanced.ToggleFeature");
 	view_listener_t::addMenu(new LLAdvancedCheckFeature(), "Advanced.CheckFeature");
+
+	view_listener_t::addMenu(new LLAdvancedCheckDisplayTextureDensity(), "Advanced.CheckDisplayTextureDensity");
+	view_listener_t::addMenu(new LLAdvancedSetDisplayTextureDensity(), "Advanced.SetDisplayTextureDensity");
+
 	// Advanced > Render > Info Displays
 	view_listener_t::addMenu(new LLAdvancedToggleInfoDisplay(), "Advanced.ToggleInfoDisplay");
 	view_listener_t::addMenu(new LLAdvancedCheckInfoDisplay(), "Advanced.CheckInfoDisplay");
diff --git a/indra/newview/llviewertexture.cpp b/indra/newview/llviewertexture.cpp
index 61236edc86..3984e7c433 100644
--- a/indra/newview/llviewertexture.cpp
+++ b/indra/newview/llviewertexture.cpp
@@ -67,6 +67,7 @@
 // statics
 LLPointer<LLViewerTexture>        LLViewerTexture::sNullImagep = NULL;
 LLPointer<LLViewerTexture>        LLViewerTexture::sBlackImagep = NULL;
+LLPointer<LLViewerTexture>        LLViewerTexture::sCheckerBoardImagep = NULL;
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sMissingAssetImagep = NULL;
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sWhiteImagep = NULL;
 LLPointer<LLViewerFetchedTexture> LLViewerFetchedTexture::sDefaultImagep = NULL;
@@ -96,6 +97,7 @@ S32 LLViewerTexture::sMaxSmallImageSize = MAX_CACHED_RAW_IMAGE_AREA ;
 BOOL LLViewerTexture::sFreezeImageScalingDown = FALSE ;
 F32 LLViewerTexture::sCurrentTime = 0.0f ;
 BOOL LLViewerTexture::sUseTextureAtlas        = FALSE ;
+LLViewerTexture::EDebugTexels LLViewerTexture::sDebugTexelsMode = LLViewerTexture::DEBUG_TEXELS_OFF;
 
 const F32 desired_discard_bias_min = -2.0f; // -max number of levels to improve image quality by
 const F32 desired_discard_bias_max = (F32)MAX_DISCARD_LEVEL; // max number of levels to reduce image quality by
@@ -347,6 +349,21 @@ void LLViewerTextureManager::init()
  	LLViewerFetchedTexture::sSmokeImagep = LLViewerTextureManager::getFetchedTexture(IMG_SMOKE, TRUE, LLViewerTexture::BOOST_UI);
 	LLViewerFetchedTexture::sSmokeImagep->setNoDelete() ;
 
+	image_raw = new LLImageRaw(32,32,3);
+	data = image_raw->getData();
+
+	for (S32 i = 0; i < (32*32*3); i+=3)
+	{
+		S32 x = (i % (32*3)) / (3*16);
+		S32 y = i / (32*3*16);
+		U8 color = ((x + y) % 2) * 255;
+		data[i] = color;
+		data[i+1] = color;
+		data[i+2] = color;
+	}
+
+	LLViewerTexture::sCheckerBoardImagep = LLViewerTextureManager::getLocalTexture(image_raw.get(), TRUE);
+
 	LLViewerTexture::initClass() ;
 
 	if (LLMetricPerformanceTesterBasic::isMetricLogRequested(sTesterName) && !LLMetricPerformanceTesterBasic::getTester(sTesterName))
diff --git a/indra/newview/llviewertexture.h b/indra/newview/llviewertexture.h
index b96441127d..99053a8ccc 100644
--- a/indra/newview/llviewertexture.h
+++ b/indra/newview/llviewertexture.h
@@ -139,6 +139,7 @@ public:
 		OTHER,
 		MAX_GL_IMAGE_CATEGORY
 	};
+
 	static S32 getTotalNumOfCategories() ;
 	static S32 getIndexFromCategory(S32 category) ;
 	static S32 getCategoryFromIndex(S32 index) ;
@@ -330,8 +331,19 @@ public:
 	static F32  sCurrentTime ;
 	static BOOL sUseTextureAtlas ;
 
+	enum EDebugTexels
+	{
+		DEBUG_TEXELS_OFF,
+		DEBUG_TEXELS_CURRENT,
+		DEBUG_TEXELS_DESIRED,
+		DEBUG_TEXELS_FULL
+	};
+
+	static EDebugTexels sDebugTexelsMode;
+
 	static LLPointer<LLViewerTexture> sNullImagep; // Null texture for non-textured objects.
 	static LLPointer<LLViewerTexture> sBlackImagep;	// Texture to show NOTHING (pure black)
+	static LLPointer<LLViewerTexture> sCheckerBoardImagep;	// Texture to show NOTHING (pure black)
 };
 
 
diff --git a/indra/newview/pipeline.h b/indra/newview/pipeline.h
index 9c78048c46..670a23ef14 100644
--- a/indra/newview/pipeline.h
+++ b/indra/newview/pipeline.h
@@ -461,6 +461,7 @@ public:
 		RENDER_DEBUG_LOD_INFO	        = 0x04000000,
 		RENDER_DEBUG_RENDER_COMPLEXITY  = 0x08000000,
 		RENDER_DEBUG_ATTACHMENT_BYTES	= 0x10000000,
+		RENDER_DEBUG_TEXEL_DENSITY		= 0x20000000
 	};
 
 public:
diff --git a/indra/newview/skins/default/xui/en/menu_viewer.xml b/indra/newview/skins/default/xui/en/menu_viewer.xml
index cd8550b00d..64ef343506 100644
--- a/indra/newview/skins/default/xui/en/menu_viewer.xml
+++ b/indra/newview/skins/default/xui/en/menu_viewer.xml
@@ -2432,6 +2432,52 @@
            function="Advanced.ToggleInfoDisplay"
            parameter="sculpt" />
 		</menu_item_check>
+       <menu
+         create_jump_keys="true"
+         label="Display Texture Density"
+         name="Display Texture Density"
+         tear_off="true">
+          <menu_item_check
+           label="None"
+           name="None">
+            <menu_item_check.on_check
+             function="Advanced.CheckDisplayTextureDensity"
+             parameter="none" />
+            <menu_item_check.on_click
+             function="Advanced.SetDisplayTextureDensity"
+             parameter="none" />
+          </menu_item_check>
+          <menu_item_check
+           label="Current"
+           name="Current">
+            <menu_item_check.on_check
+             function="Advanced.CheckDisplayTextureDensity"
+             parameter="current" />
+            <menu_item_check.on_click
+             function="Advanced.SetDisplayTextureDensity"
+             parameter="current" />
+          </menu_item_check>
+          <menu_item_check
+           label="Desired"
+           name="Desired">
+            <menu_item_check.on_check
+             function="Advanced.CheckDisplayTextureDensity"
+             parameter="desired" />
+            <menu_item_check.on_click
+             function="Advanced.SetDisplayTextureDensity"
+             parameter="desired" />
+          </menu_item_check>
+          <menu_item_check
+           label="Full"
+           name="Full">
+            <menu_item_check.on_check
+             function="Advanced.CheckDisplayTextureDensity"
+             parameter="full" />
+            <menu_item_check.on_click
+             function="Advanced.SetDisplayTextureDensity"
+             parameter="full" />
+          </menu_item_check>
+        </menu>
       </menu>
         <menu
          create_jump_keys="true"