Add more missing external API, use buffer attachment 1 for uniforms

Author: tokyovigilante

projects/xcode5/GLSLOptimiser/GLSLOptimizerBridge.h

@@ -59,6 +59,10 @@ typedef NS_ENUM(NSUInteger, GLSLOptPrecision) {
 @property SInt32 arraySize;
 @property UInt32 location;
 
+-(UInt32)elementCount;
+-(UInt32)elementSize;
+-(UInt32)rawSize;
+
 @end
 
 @interface GLSLShader: NSObject

projects/xcode5/GLSLOptimiser/GLSLOptimizerBridge.mm

@@ -14,6 +14,36 @@
 
 @implementation GLSLShaderVariableDescription
 
+-(UInt32)elementCount {
+    return self.vecSize * self.matSize * (self.arraySize == -1 ? 1 : self.arraySize);
+}
+
+-(UInt32)elementSize {
+    UInt32 elementSize = 0;
+    
+    switch (self.type) {
+        case GLSLOptBasicTypeFloat:
+            elementSize = sizeof(float);
+            break;
+        case GLSLOptBasicTypeInt:
+            elementSize = sizeof(int);
+            break;
+        case GLSLOptBasicTypeBool:
+            elementSize = sizeof(bool);
+            break;
+        case GLSLOptBasicTypeTex2D:
+        case GLSLOptBasicTypeTex3D:
+        case GLSLOptBasicTypeTexCube:
+            break;
+        default:
+            break;
+    }
+    return elementSize;
+}
+-(UInt32)rawSize {
+    return [self elementCount] * [self elementSize];
+}
+
 @end
 
 typedef NS_ENUM(NSUInteger, GLSLShaderVariableType) {

src/glsl/glsl_types.h

@@ -427,7 +427,7 @@ struct glsl_type {
     */
    bool is_sampler() const
    {
-      return base_type == GLSL_TYPE_SAMPLER;
+       return base_type == GLSL_TYPE_SAMPLER;
    }
 
    /**

src/glsl/ir_print_metal_visitor.cpp

@@ -701,7 +701,7 @@ void ir_print_metal_visitor::visit(ir_function_signature *ir)
 			buffer.asprintf_append ("fragment ");
 		if (this->mode_whole == kPrintGlslVertex)
 			buffer.asprintf_append ("vertex ");
-		buffer.asprintf_append ("xlatMtlShaderOutput xlatMtlMain (xlatMtlShaderInput _mtl_i [[stage_in]], constant xlatMtlShaderUniform& _mtl_u [[buffer(0)]]");
+		buffer.asprintf_append ("xlatMtlShaderOutput xlatMtlMain (xlatMtlShaderInput _mtl_i [[stage_in]], constant xlatMtlShaderUniform& _mtl_u [[buffer(1)]]");
 		if (!ctx.paramsStr.empty())
 		{
 			buffer.asprintf_append ("%s", ctx.paramsStr.c_str());