Added a compilation routine, probably will abstract all this out into

it's own class / function. Added a small kernel that I got from a tutorial
to test the compilers error codes. Added a small notes file with error
codes. Added some error checking for the error codes

kernels/kernel.txt

@@ -0,0 +1,32 @@
+__constant sampler_t sampler =
+      CLK_NORMALIZED_COORDS_FALSE
+    | CLK_ADDRESS_CLAMP_TO_EDGE
+    | CLK_FILTER_NEAREST;
+
+__constant int FILTER_SIZE = 10;
+
+float FilterValue (__constant const float* filterWeights,
+    const int x, const int y)
+{
+    return filterWeights[(x+FILTER_SIZE) + (y+FILTER_SIZE)*(FILTER_SIZE*2 + 1)];
+}
+
+__kernel void Filter (
+    __read_only image2d_t input,
+    __constant float* filterWeights,
+    __write_only image2d_t output)
+{
+    const int2 pos = {get_global_id(0), get_global_id(1)};
+
+    float4 sum = (float4)(0.0f);
+    for(int y = -FILTER_SIZE; y <= FILTER_SIZE; y++) {
+        for(int x = -FILTER_SIZE; x <= FILTER_SIZE; x++) {
+            sum += FilterValue(filterWeights, x, y)
+                * read_imagef(input, sampler, pos + (int2)(x,y));
+        }
+    }
+
+    write_imagef (output, (int2)(pos.x, pos.y), sum);
+}
+
+