1736 audit texture image unit usage on os x (#1739)

* #1736 Remove some unused samplers from glsl files and refactor shader manager to assume 16 texture image units and 4 indexed texture units all the time.

14 files changed, 4 insertions, 22 deletions

diff --git a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
index 49470f0e39..ce018623a8 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/aoUtil.glsl
@@ -23,8 +23,7 @@
  * $/LicenseInfo$
  */
 
-uniform sampler2D       noiseMap;
-uniform sampler2D   normalMap;
+uniform sampler2D   noiseMap;
 uniform sampler2D   depthMap;
 
 uniform float ssao_radius;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
index 438e1d1b33..37dcbbd328 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/avatarShadowF.glsl
@@ -27,8 +27,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D diffuseMap;
-
 void main()
 {
     frag_color = vec4(1,1,1,1);
diff --git a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
index d7d98477c0..23a3ca4911 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/blurLightF.glsl
@@ -27,7 +27,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D normalMap;
 uniform sampler2D lightMap;
 
 uniform float dist_factor;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
index 3ea2248bec..ab0e4fd4d8 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/deferredUtil.glsl
@@ -50,7 +50,6 @@ SOFTWARE.
 
 uniform sampler2D   normalMap;
 uniform sampler2D   depthMap;
-uniform sampler2D emissiveRect;
 uniform sampler2D projectionMap; // rgba
 uniform sampler2D brdfLut;
 
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
index 9db8f461dd..f208ac746b 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowAlphaMaskF.glsl
@@ -27,8 +27,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D diffuseMap;
-
 in vec4 post_pos;
 in float target_pos_x;
 in vec4 vertex_color;
diff --git a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
index 16cc7cfbbc..6f7bd2bf3c 100644
--- a/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
+++ b/indra/newview/app_settings/shaders/class1/deferred/shadowUtil.glsl
@@ -24,7 +24,6 @@
  */
 
 uniform sampler2D   normalMap;
-uniform sampler2D   depthMap;
 
 #if defined(SUN_SHADOW)
 uniform sampler2DShadow shadowMap0;
diff --git a/indra/newview/app_settings/shaders/class1/interface/copyF.glsl b/indra/newview/app_settings/shaders/class1/interface/copyF.glsl
index edaa2488f0..094d147e86 100644
--- a/indra/newview/app_settings/shaders/class1/interface/copyF.glsl
+++ b/indra/newview/app_settings/shaders/class1/interface/copyF.glsl
@@ -25,7 +25,10 @@
 
 in vec2 tc;
 
+#if defined(COPY_DEPTH)
 uniform sampler2D depthMap;
+#endif
+
 uniform sampler2D diffuseMap;
 
 out vec4 frag_color;
diff --git a/indra/newview/app_settings/shaders/class3/deferred/hazeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/hazeF.glsl
index 87977eb28c..7b82aa1a0d 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/hazeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/hazeF.glsl
@@ -25,8 +25,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D normalMap;
-
 // Inputs
 uniform vec3 sun_dir;
 uniform vec3 moon_dir;
diff --git a/indra/newview/app_settings/shaders/class3/deferred/multiPointLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/multiPointLightF.glsl
index ac3fec23f6..4ed778371f 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/multiPointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/multiPointLightF.glsl
@@ -27,7 +27,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D depthMap;
 uniform sampler2D diffuseRect;
 uniform sampler2D specularRect;
 uniform sampler2D emissiveRect; // PBR linear packed Occlusion, Roughness, Metal. See: pbropaqueF.glsl
diff --git a/indra/newview/app_settings/shaders/class3/deferred/pointLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/pointLightF.glsl
index e419525bd5..6c13757149 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/pointLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/pointLightF.glsl
@@ -29,10 +29,8 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseRect;
 uniform sampler2D specularRect;
-uniform sampler2D normalMap;
 uniform sampler2D emissiveRect; // PBR linear packed Occlusion, Roughness, Metal. See: pbropaqueF.glsl
 uniform sampler2D lightFunc;
-uniform sampler2D depthMap;
 
 uniform vec3 env_mat[3];
 uniform float sun_wash;
diff --git a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
index 529d1cba6b..ca88fe7482 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/softenLightF.glsl
@@ -29,7 +29,6 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseRect;
 uniform sampler2D specularRect;
-uniform sampler2D normalMap;
 uniform sampler2D emissiveRect; // PBR linear packed Occlusion, Roughness, Metal. See: pbropaqueF.glsl
 
 const float M_PI = 3.14159265;
@@ -38,7 +37,6 @@ const float M_PI = 3.14159265;
 uniform sampler2D lightMap;
 #endif
 
-uniform sampler2D depthMap;
 uniform sampler2D     lightFunc;
 
 uniform float blur_size;
diff --git a/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl b/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl
index 092b0c3c08..bc4d36d10d 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/spotLightF.glsl
@@ -29,12 +29,9 @@ out vec4 frag_color;
 
 uniform sampler2D diffuseRect;
 uniform sampler2D specularRect;
-uniform sampler2D depthMap;
-uniform sampler2D normalMap;
 uniform sampler2D emissiveRect; // PBR linear packed Occlusion, Roughness, Metal. See: pbropaqueF.glsl
 uniform samplerCube environmentMap;
 uniform sampler2D lightMap;
-uniform sampler2D projectionMap; // rgba
 uniform sampler2D lightFunc;
 
 uniform mat4 proj_mat; //screen space to light space
diff --git a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
index a5a37d80dd..2bf785e773 100644
--- a/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
+++ b/indra/newview/app_settings/shaders/class3/deferred/waterHazeF.glsl
@@ -28,8 +28,6 @@ out vec4 frag_color;
 // Inputs
 in vec4 vary_fragcoord;
 
-uniform sampler2D normalMap;
-
 vec4 getPositionWithDepth(vec2 pos_screen, float depth);
 float getDepth(vec2 pos_screen);
 
diff --git a/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
index 728d70ebb2..1c02dc764d 100644
--- a/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
+++ b/indra/newview/app_settings/shaders/class3/environment/underWaterF.glsl
@@ -25,7 +25,6 @@
 
 out vec4 frag_color;
 
-uniform sampler2D diffuseMap;
 uniform sampler2D bumpMap;
 
 #ifdef TRANSPARENT_WATER