Merged in graham_linden/viewer-eep-graham (pull request #22)

Support blending current/next bloom textures in deferred star rendering.

7 files changed, 95 insertions, 20 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/starsF.glsl b/indra/newview/app_settings/shaders/class1/deferred/starsF.glsl
index 7f55d020d4..d6a1edbf42 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/starsF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/starsF.glsl
@@ -35,12 +35,16 @@ VARYING vec4 vertex_color;
 VARYING vec2 vary_texcoord0;
 
 uniform sampler2D diffuseMap;
+uniform sampler2D altDiffuseMap;
+uniform float blend_factor;
 uniform float custom_alpha;
 uniform vec4 sunlight_color;
 
 void main() 
 {
-	vec4 col = texture2D(diffuseMap, vary_texcoord0.xy);
+	vec4 col_a = texture2D(diffuseMap, vary_texcoord0.xy);
+	vec4 col_b = texture2D(diffuseMap, vary_texcoord0.xy);
+    vec4 col = mix(col_a, col_b, blend_factor);
     col.rgb *= vertex_color.rgb;
     col.a *= custom_alpha;
 	frag_color = col;
diff --git a/indra/newview/lldrawpoolwlsky.cpp b/indra/newview/lldrawpoolwlsky.cpp
index 8c9207a6de..3557f5a1ce 100644
--- a/indra/newview/lldrawpoolwlsky.cpp
+++ b/indra/newview/lldrawpoolwlsky.cpp
@@ -238,7 +238,22 @@ void LLDrawPoolWLSky::renderStars(void) const
 		return;
 	}
 
-	gGL.getTexUnit(0)->bind(gSky.mVOSkyp->getBloomTex());
+    LLViewerTexture* tex_a = gSky.mVOSkyp->getBloomTex();
+    LLViewerTexture* tex_b = gSky.mVOSkyp->getBloomTexNext();
+	
+    if (tex_a && (!tex_b || (tex_a == tex_b)))
+    {
+        // Bind current and next sun textures
+		gGL.getTexUnit(0)->bind(tex_a);
+    }
+    else if (tex_b && !tex_a)
+    {
+        gGL.getTexUnit(0)->bind(tex_b);
+    }
+    else if (tex_b != tex_a)
+    {
+        gGL.getTexUnit(0)->bind(tex_a);
+    }
 
 	gGL.pushMatrix();
 	gGL.rotatef(gFrameTimeSeconds*0.01f, 0.f, 0.f, 1.f);
@@ -256,6 +271,8 @@ void LLDrawPoolWLSky::renderStars(void) const
 
 	gSky.mVOWLSkyp->drawStars();
 
+    gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+
 	gGL.popMatrix();
 
 	if (LLGLSLShader::sNoFixedFunction)
@@ -287,11 +304,37 @@ void LLDrawPoolWLSky::renderStarsDeferred(void) const
 
 	gDeferredStarProgram.bind();	
 
-    gGL.getTexUnit(0)->bind(gSky.mVOSkyp->getBloomTex());
+    LLViewerTexture* tex_a = gSky.mVOSkyp->getBloomTex();
+    LLViewerTexture* tex_b = gSky.mVOSkyp->getBloomTexNext();
+
+    F32 blend_factor = LLEnvironment::instance().getCurrentSky()->getBlendFactor();
+	
+    if (tex_a && (!tex_b || (tex_a == tex_b)))
+    {
+        // Bind current and next sun textures
+		gGL.getTexUnit(0)->bind(tex_a);
+        gGL.getTexUnit(1)->unbind(LLTexUnit::TT_TEXTURE);
+        blend_factor = 0;
+    }
+    else if (tex_b && !tex_a)
+    {
+        gGL.getTexUnit(0)->bind(tex_b);
+        gGL.getTexUnit(1)->unbind(LLTexUnit::TT_TEXTURE);
+        blend_factor = 0;
+    }
+    else if (tex_b != tex_a)
+    {
+        gGL.getTexUnit(0)->bind(tex_a);
+        gGL.getTexUnit(1)->bind(tex_b);
+    }
 
+    gDeferredStarProgram.uniform1f(LLShaderMgr::BLEND_FACTOR, blend_factor);
 	gDeferredStarProgram.uniform1f(sCustomAlpha, star_alpha);
 	gSky.mVOWLSkyp->drawStars();
 
+    gGL.getTexUnit(0)->unbind(LLTexUnit::TT_TEXTURE);
+    gGL.getTexUnit(1)->unbind(LLTexUnit::TT_TEXTURE);
+
     gDeferredStarProgram.unbind();
 }
 
diff --git a/indra/newview/llsettingsvo.cpp b/indra/newview/llsettingsvo.cpp
index dba7e00b93..a5187b7363 100644
--- a/indra/newview/llsettingsvo.cpp
+++ b/indra/newview/llsettingsvo.cpp
@@ -538,6 +538,7 @@ void LLSettingsVOSky::updateSettings()
     gSky.setSunTextures(getSunTextureId(), getNextSunTextureId());
     gSky.setMoonTextures(getMoonTextureId(), getNextMoonTextureId());
     gSky.setCloudNoiseTextures(getCloudNoiseTextureId(), getNextCloudNoiseTextureId());
+    gSky.setBloomTextures(getBloomTextureId(), getNextBloomTextureId());
 }
 
 void LLSettingsVOSky::applySpecial(void *ptarget)
diff --git a/indra/newview/llsky.cpp b/indra/newview/llsky.cpp
index 5d85778da5..9c7fc225a0 100644
--- a/indra/newview/llsky.cpp
+++ b/indra/newview/llsky.cpp
@@ -150,6 +150,13 @@ void LLSky::setCloudNoiseTextures(const LLUUID& cloud_noise_texture, const LLUUI
 	}
 }
 
+void LLSky::setBloomTextures(const LLUUID& bloom_texture, const LLUUID& bloom_texture_next)
+{
+    if(mVOSkyp.notNull()) {
+        mVOSkyp->setBloomTextures(bloom_texture, bloom_texture_next);
+	}
+}
+
 void LLSky::setSunAndMoonDirectionsCFR(const LLVector3 &sun_direction, const LLVector3 &moon_direction)
 {
     if(mVOSkyp.notNull()) {
diff --git a/indra/newview/llsky.h b/indra/newview/llsky.h
index cc5db2c7ec..d2067a58bb 100644
--- a/indra/newview/llsky.h
+++ b/indra/newview/llsky.h
@@ -59,6 +59,7 @@ public:
     void setSunTextures(const LLUUID& sun_texture, const LLUUID& sun_texture_next);
     void setMoonTextures(const LLUUID& moon_texture, const LLUUID& moon_texture_next);
     void setCloudNoiseTextures(const LLUUID& cloud_noise_texture, const LLUUID& cloud_noise_texture_next);
+    void setBloomTextures(const LLUUID& bloom_texture, const LLUUID& bloom_texture_next);
 
 	LLColor4 getSkyFogColor() const;
 
diff --git a/indra/newview/llvosky.cpp b/indra/newview/llvosky.cpp
index b57652e3f5..e099b410bf 100644
--- a/indra/newview/llvosky.cpp
+++ b/indra/newview/llvosky.cpp
@@ -393,10 +393,6 @@ LLVOSky::LLVOSky(const LLUUID &id, const LLPCode pcode, LLViewerRegion *regionp)
 	mSun.setIntensity(SUN_INTENSITY);
 	mMoon.setIntensity(0.1f * SUN_INTENSITY);
 
-	mBloomTexturep = LLViewerTextureManager::getFetchedTexture(LLSettingsSky::GetDefaultBloomTextureId());
-	mBloomTexturep->setNoDelete() ;
-	mBloomTexturep->setAddressMode(LLTexUnit::TAM_CLAMP);
-
 	mHeavenlyBodyUpdated = FALSE ;
 
 	mDrawRefl = 0;
@@ -492,10 +488,6 @@ void LLVOSky::restoreGL()
         setMoonTextures(psky->getMoonTextureId(), psky->getNextMoonTextureId());
     }
 
-	mBloomTexturep = LLViewerTextureManager::getFetchedTexture(LLSettingsSky::GetDefaultBloomTextureId());
-	mBloomTexturep->setNoDelete() ;
-	mBloomTexturep->setAddressMode(LLTexUnit::TAM_CLAMP);
-
 	updateDirections();
 
 	if (gSavedSettings.getBOOL("RenderWater") && gGLManager.mHasCubeMap
@@ -762,9 +754,14 @@ void LLVOSky::updateTextures()
 		mMoonTexturep[1]->addTextureStats( (F32)MAX_IMAGE_AREA );
     }   
 
-    if (mBloomTexturep)
+    if (mBloomTexturep[0])
+    {
+		mBloomTexturep[0]->addTextureStats( (F32)MAX_IMAGE_AREA );
+	}
+
+    if (mBloomTexturep[1])
     {
-		mBloomTexturep->addTextureStats( (F32)MAX_IMAGE_AREA );
+		mBloomTexturep[1]->addTextureStats( (F32)MAX_IMAGE_AREA );
 	}
 }
 
@@ -858,6 +855,27 @@ void LLVOSky::setCloudNoiseTextures(const LLUUID& cloud_noise_texture, const LLU
     }
 }
 
+void LLVOSky::setBloomTextures(const LLUUID& bloom_texture, const LLUUID& bloom_texture_next)
+{
+    LLSettingsSky::ptr_t psky = LLEnvironment::instance().getCurrentSky();
+
+    LLUUID bloom_tex = bloom_texture.isNull() ? psky->GetDefaultBloomTextureId() : bloom_texture;
+    LLUUID bloom_tex_next = bloom_texture_next.isNull() ? (bloom_texture.isNull() ? psky->GetDefaultBloomTextureId() : bloom_texture) : bloom_texture_next;
+
+    mBloomTexturep[0] = LLViewerTextureManager::getFetchedTexture(bloom_tex, FTT_DEFAULT, TRUE, LLGLTexture::BOOST_UI);
+    mBloomTexturep[1] = LLViewerTextureManager::getFetchedTexture(bloom_tex_next, FTT_DEFAULT, TRUE, LLGLTexture::BOOST_UI);
+
+    if (mBloomTexturep[0])
+    {
+	    mBloomTexturep[0]->setAddressMode(LLTexUnit::TAM_CLAMP);
+    }
+
+    if (mBloomTexturep[1])
+    {
+	    mBloomTexturep[1]->setAddressMode(LLTexUnit::TAM_CLAMP);
+    }
+}
+
 static LLTrace::BlockTimerStatHandle FTM_GEO_SKY("Sky Geometry");
 
 BOOL LLVOSky::updateGeometry(LLDrawable *drawable)
diff --git a/indra/newview/llvosky.h b/indra/newview/llvosky.h
index a9a59681ff..758a4a8c94 100644
--- a/indra/newview/llvosky.h
+++ b/indra/newview/llvosky.h
@@ -263,19 +263,20 @@ public:
 	bool isReflFace(const LLFace* face) const			{ return face == mFace[FACE_REFLECTION]; }
 	LLFace* getReflFace() const							{ return mFace[FACE_REFLECTION]; }
 
-	LLViewerTexture*	getSunTex() const					{ return mSunTexturep[0];   }
-	LLViewerTexture*	getMoonTex() const					{ return mMoonTexturep[0];  }
-	LLViewerTexture*	getBloomTex() const					{ return mBloomTexturep;    }
+	LLViewerTexture*	getSunTex() const					{ return mSunTexturep[0]; }
+	LLViewerTexture*	getMoonTex() const					{ return mMoonTexturep[0]; }
+	LLViewerTexture*	getBloomTex() const					{ return mBloomTexturep[0]; }
     LLViewerTexture*	getCloudNoiseTex() const			{ return mCloudNoiseTexturep[0]; }
 
-    LLViewerTexture*	getSunTexNext() const					{ return mSunTexturep[1];   }
-	LLViewerTexture*	getMoonTexNext() const					{ return mMoonTexturep[1];  }
-	LLViewerTexture*	getBloomTexNext() const					{ return mBloomTexturep;    }
+    LLViewerTexture*	getSunTexNext() const					{ return mSunTexturep[1]; }
+	LLViewerTexture*	getMoonTexNext() const					{ return mMoonTexturep[1]; }
+	LLViewerTexture*	getBloomTexNext() const					{ return mBloomTexturep[1]; }
     LLViewerTexture*	getCloudNoiseTexNext() const			{ return mCloudNoiseTexturep[1]; }
 
     void setSunTextures(const LLUUID& sun_texture, const LLUUID& sun_texture_next);
     void setMoonTextures(const LLUUID& moon_texture, const LLUUID& moon_texture_next);
     void setCloudNoiseTextures(const LLUUID& cloud_noise_texture, const LLUUID& cloud_noise_texture_next);
+    void setBloomTextures(const LLUUID& bloom_texture, const LLUUID& bloom_texture_next);
 
 	void forceSkyUpdate(void)							{ mForceUpdate = TRUE; }
 
@@ -294,7 +295,7 @@ protected:
 	LLPointer<LLViewerFetchedTexture> mSunTexturep[2];
 	LLPointer<LLViewerFetchedTexture> mMoonTexturep[2];
     LLPointer<LLViewerFetchedTexture> mCloudNoiseTexturep[2];
-	LLPointer<LLViewerFetchedTexture> mBloomTexturep;
+	LLPointer<LLViewerFetchedTexture> mBloomTexturep[2];
 
 	static S32			sResolution;
 	static S32			sTileResX;