extension: GL_QCOM_image_processing support

Test/spv.tpipBoxFilter.frag

@@ -0,0 +1,32 @@
+#version 450
+#extension GL_QCOM_image_processing : require
+
+precision highp float;
+
+// fragment shader inputs and outputs
+layout (location = 0) in vec4 v_texcoord;
+
+layout (location = 0) out vec4 fragColor;
+
+// fragment shader resources
+layout(set = 0, binding = 0) uniform texture2DArray tex2DArray_weights;
+layout(set = 0, binding = 1) uniform texture2D tex2D_src1;
+layout(set = 0, binding = 2) uniform texture2D tex2D_src2;
+layout(set = 0, binding = 3) uniform sampler samp;
+layout(set = 0, binding = 4) uniform sampler2D tex_samp;
+
+void main()
+{
+
+    vec2 boxSize = vec2(2.5, 4.5);
+    fragColor = textureBoxFilterQCOM(
+                    sampler2D(tex2D_src1, samp),                   // source texture
+                    v_texcoord.xy,                                 // tex coords
+                    boxSize);                                      // box size
+    fragColor = textureBoxFilterQCOM(
+                    tex_samp,                                      // combined source texture
+                    v_texcoord.xy,                                 // tex coords
+                    boxSize);                                      // box size
+
+}
+