Eliminate helper GLSL modules depending on further GLSL modules to give Intel HD x000 compiler a fighting chance.

More WIP for edge-specific water shader for 9996.

5 files changed, 128 insertions, 87 deletions

diff --git a/indra/llrender/llshadermgr.cpp b/indra/llrender/llshadermgr.cpp
index 6c8cdb094b..807e41dc97 100644
--- a/indra/llrender/llshadermgr.cpp
+++ b/indra/llrender/llshadermgr.cpp
@@ -197,7 +197,7 @@ BOOL LLShaderMgr::attachShaderFeatures(LLGLSLShader * shader)
 	}
 
     // we want this BEFORE shadows and AO because those facilities use pos/norm access
-    if (features->isDeferred || features->hasShadows || features->hasAmbientOcclusion)
+    if (features->isDeferred)
 	{
 		if (!shader->attachObject("deferred/deferredUtil.glsl"))
 		{
diff --git a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
index 3bb59dd7f9..23adbded5e 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
@@ -24,13 +24,43 @@
  */
 
 uniform sampler2D       noiseMap;
+uniform sampler2DRect   normalMap;
+uniform sampler2DRect   depthMap;
 
 uniform float ssao_radius;
 uniform float ssao_max_radius;
 uniform float ssao_factor;
 uniform float ssao_factor_inv;
 
-vec4 getPosition(vec2 pos_screen);
+uniform mat4 inv_proj;
+uniform vec2 screen_res;
+
+vec2 getScreenCoordinateAo(vec2 screenpos)
+{
+    vec2 sc = screenpos.xy * 2.0;
+    if (screen_res.x > 0 && screen_res.y > 0)
+    {
+       sc /= screen_res;
+    }
+    return sc - vec2(1.0, 1.0);
+}
+
+float getDepthAo(vec2 pos_screen)
+{
+    float depth = texture2DRect(depthMap, pos_screen).r;
+    return depth;
+}
+
+vec4 getPositionAo(vec2 pos_screen)
+{
+    float depth = getDepthAo(pos_screen);
+    vec2 sc = getScreenCoordinateAo(pos_screen);
+    vec4 ndc = vec4(sc.x, sc.y, 2.0*depth-1.0, 1.0);
+    vec4 pos = inv_proj * ndc;
+    pos /= pos.w;
+    pos.w = 1.0;
+    return pos;
+}
 
 vec2 getKern(int i)
 {
@@ -64,7 +94,7 @@ float calcAmbientOcclusion(vec4 pos, vec3 norm, vec2 pos_screen)
     for (int i = 0; i < 8; i++)
     {
         vec2 samppos_screen = pos_screen + scale * reflect(getKern(i), noise_reflect);
-        vec3 samppos_world = getPosition(samppos_screen).xyz; 
+        vec3 samppos_world = getPositionAo(samppos_screen).xyz; 
         
         vec3 diff = pos_world - samppos_world;
         float dist2 = dot(diff, diff);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
index cef9938192..843901ea6a 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
@@ -25,7 +25,6 @@
 
 uniform sampler2DRect   normalMap;
 uniform sampler2DRect   depthMap;
-uniform sampler2D       noiseMap;
 uniform sampler2DShadow shadowMap0;
 uniform sampler2DShadow shadowMap1;
 uniform sampler2DShadow shadowMap2;
@@ -33,11 +32,6 @@ uniform sampler2DShadow shadowMap3;
 uniform sampler2DShadow shadowMap4;
 uniform sampler2DShadow shadowMap5;
 
-uniform float ssao_radius;
-uniform float ssao_max_radius;
-uniform float ssao_factor;
-uniform float ssao_factor_inv;
-
 uniform vec3 sun_dir;
 uniform vec3 moon_dir;
 uniform vec2 shadow_res;
@@ -52,8 +46,6 @@ uniform float sun_up_factor;
 uniform mat4 inv_proj;
 uniform vec2 screen_res;
 
-vec3 decode_normal(vec2 enc);
-
 float pcfShadow(sampler2DShadow shadowMap, vec4 stc, float bias_mul, vec2 pos_screen, vec3 light_dir)
 {
     stc.xyz /= stc.w;
diff --git a/indra/newview/lldrawpoolwater.cpp b/indra/newview/lldrawpoolwater.cpp
index 514ce41d5a..826aa1cf24 100644
--- a/indra/newview/lldrawpoolwater.cpp
+++ b/indra/newview/lldrawpoolwater.cpp
@@ -477,85 +477,14 @@ void LLDrawPoolWater::renderReflection(LLFace* face)
 	face->renderIndexed();
 }
 
-void LLDrawPoolWater::shade()
+void LLDrawPoolWater::shade2(bool edge, LLGLSLShader* shader, const LLColor3& light_diffuse, const LLVector3& light_dir, F32 light_exp)
 {
-	if (!deferred_render)
-	{
-		gGL.setColorMask(true, true);
-	}
-
-	LLVOSky *voskyp = gSky.mVOSkyp;
-
-	if(voskyp == NULL) 
-	{
-		return;
-	}
-
-	LLGLDisable blend(GL_BLEND);
-
-	LLColor3 light_diffuse(0,0,0);
-	F32 light_exp = 0.0f;
-	LLVector3 light_dir;
+    F32 eyedepth = LLViewerCamera::getInstance()->getOrigin().mV[2] - LLEnvironment::instance().getWaterHeight();
 
     LLEnvironment& environment = LLEnvironment::instance();
     LLSettingsWater::ptr_t pwater = environment.getCurrentWater();
     LLSettingsSky::ptr_t   psky   = environment.getCurrentSky();
 
-    light_dir = environment.getLightDirection();
-    light_dir.normalize();
-
-    bool sun_up  = environment.getIsSunUp();
-    bool moon_up = environment.getIsMoonUp();
-
-    if (sun_up)
-    {
-        light_diffuse += voskyp->getSun().getColorCached();
-    }
-    // moonlight is several orders of magnitude less bright than sunlight,
-    // so only use this color when the moon alone is showing
-    else if (moon_up)
-    {        
-        light_diffuse += psky->getMoonDiffuse(); 
-    }
-
-    light_exp = light_dir * LLVector3(light_dir.mV[0], light_dir.mV[1], 0.f);
-
-    light_diffuse.normalize();
-    light_diffuse *= (light_exp + 0.25f);
-
-	light_exp *= light_exp;
-	light_exp *= light_exp;
-	light_exp *= light_exp;
-	light_exp *= light_exp;
-	light_exp *= 256.f;
-	light_exp = light_exp > 32.f ? light_exp : 32.f;
-
-    light_diffuse *= 6.f;
-
-	LLGLSLShader* shader;
-
-	F32 eyedepth = LLViewerCamera::getInstance()->getOrigin().mV[2] - LLEnvironment::instance().getWaterHeight();
-	
-	if (eyedepth < 0.f && LLPipeline::sWaterReflections)
-	{
-	    if (deferred_render)
-	    {
-            shader = &gDeferredUnderWaterProgram;
-	    }
-		else
-        {
-	        shader = &gUnderWaterProgram;
-        }
-	}
-	else if (deferred_render)
-	{
-		shader = &gDeferredWaterProgram;
-	}
-	else
-	{
-		shader = &gWaterProgram;
-	}
-
     shader->bind();
 
 	if (deferred_render)
@@ -721,9 +650,11 @@ void LLDrawPoolWater::shade()
                 LLVOWater* water = (LLVOWater*) face->getViewerObject();
 			    gGL.getTexUnit(diffTex)->bind(face->getTexture());
 
-                bool edge = water && water->getIsEdgePatch();
-                shader->uniform1i(LLShaderMgr::WATER_EDGE_FACTOR, edge ? 1 : 0);
-                face->renderIndexed();
+                bool edge_patch = water && water->getIsEdgePatch();
+                if (edge_patch == edge)
+                {
+                    face->renderIndexed();
+                }
             }
 		}
     }
@@ -736,6 +667,92 @@ void LLDrawPoolWater::shade()
 	shader->disableTexture(LLShaderMgr::WATER_SCREENDEPTH);
 
 	shader->unbind();
+}
+
+void LLDrawPoolWater::shade()
+{
+	if (!deferred_render)
+	{
+		gGL.setColorMask(true, true);
+	}
+
+	LLVOSky *voskyp = gSky.mVOSkyp;
+
+	if(voskyp == NULL) 
+	{
+		return;
+	}
+
+	LLGLDisable blend(GL_BLEND);
+
+	LLColor3 light_diffuse(0,0,0);
+	F32 light_exp = 0.0f;
+	LLVector3 light_dir;
+
+    LLEnvironment& environment = LLEnvironment::instance();
+    LLSettingsWater::ptr_t pwater = environment.getCurrentWater();
+    LLSettingsSky::ptr_t   psky   = environment.getCurrentSky();
+
+    light_dir = environment.getLightDirection();
+    light_dir.normalize();
+
+    bool sun_up  = environment.getIsSunUp();
+    bool moon_up = environment.getIsMoonUp();
+
+    if (sun_up)
+    {
+        light_diffuse += voskyp->getSun().getColorCached();
+    }
+    // moonlight is several orders of magnitude less bright than sunlight,
+    // so only use this color when the moon alone is showing
+    else if (moon_up)
+    {        
+        light_diffuse += psky->getMoonDiffuse(); 
+    }
+
+    light_exp = light_dir * LLVector3(light_dir.mV[0], light_dir.mV[1], 0.f);
+
+    light_diffuse.normalize();
+    light_diffuse *= (light_exp + 0.25f);
+
+	light_exp *= light_exp;
+	light_exp *= light_exp;
+	light_exp *= light_exp;
+	light_exp *= light_exp;
+	light_exp *= 256.f;
+	light_exp = light_exp > 32.f ? light_exp : 32.f;
+
+    light_diffuse *= 6.f;
+
+	LLGLSLShader* shader = nullptr;
+    LLGLSLShader* edge_shader = nullptr;
+
+	F32 eyedepth = LLViewerCamera::getInstance()->getOrigin().mV[2] - LLEnvironment::instance().getWaterHeight();
+	
+	if (eyedepth < 0.f && LLPipeline::sWaterReflections)
+	{
+	    if (deferred_render)
+	    {
+            shader = &gDeferredUnderWaterProgram;
+	    }
+		else
+        {
+	        shader = &gUnderWaterProgram;
+        }
+	}
+	else if (deferred_render)
+	{
+		shader = &gDeferredWaterProgram;
+        //edge_shader = &gDeferredWaterEdgeProgram;
+	}
+	else
+	{
+		shader = &gWaterProgram;
+        //edge_shader = &gWaterEdgeProgram;
+	}
+
+    shade2(false, shader, light_diffuse, light_dir, light_exp);
+    shade2(true, edge_shader ? edge_shader : shader, light_diffuse, light_dir, light_exp);
 
 	gGL.getTexUnit(0)->activate();
 	gGL.getTexUnit(0)->enable(LLTexUnit::TT_TEXTURE);
diff --git a/indra/newview/lldrawpoolwater.h b/indra/newview/lldrawpoolwater.h
index f14ac1f6d2..f94baefc41 100644
--- a/indra/newview/lldrawpoolwater.h
+++ b/indra/newview/lldrawpoolwater.h
@@ -33,6 +33,7 @@
 class LLFace;
 class LLHeavenBody;
 class LLWaterSurface;
+class LLGLSLShader;
 
 class LLDrawPoolWater: public LLFacePool
 {
@@ -81,6 +82,7 @@ public:
 
 	void renderReflection(LLFace* face);
 	void shade();
+    void shade2(bool edge, LLGLSLShader* shader, const LLColor3& light_diffuse, const LLVector3& light_dir, F32 light_exp);
 
     void setTransparentTextures(const LLUUID& transparentTextureId, const LLUUID& nextTransparentTextureId);
     void setOpaqueTexture(const LLUUID& opaqueTextureId);