34 #define GEN_SAMPLE_POS_1X(prefix) \  argument
35 prefix##0XOffset   = 0.5; \
36 prefix##0YOffset   = 0.5;
44 #define GEN_SAMPLE_POS_2X(prefix) \  argument
45 prefix##0XOffset   = 0.75; \
46 prefix##0YOffset   = 0.75; \
47 prefix##1XOffset   = 0.25; \
48 prefix##1YOffset   = 0.25;
58 #define GEN_SAMPLE_POS_4X(prefix) \  argument
59 prefix##0XOffset   = 0.375; \
60 prefix##0YOffset   = 0.125; \
61 prefix##1XOffset   = 0.875; \
62 prefix##1YOffset   = 0.375; \
63 prefix##2XOffset   = 0.125; \
64 prefix##2YOffset   = 0.625; \
65 prefix##3XOffset   = 0.625; \
66 prefix##3YOffset   = 0.875;
90 #define GEN_SAMPLE_POS_8X(prefix) \  argument
91 prefix##0XOffset   = 0.5625; \
92 prefix##0YOffset   = 0.3125; \
93 prefix##1XOffset   = 0.4375; \
94 prefix##1YOffset   = 0.6875; \
95 prefix##2XOffset   = 0.8125; \
96 prefix##2YOffset   = 0.5625; \
97 prefix##3XOffset   = 0.3125; \
98 prefix##3YOffset   = 0.1875; \
99 prefix##4XOffset   = 0.1875; \
100 prefix##4YOffset   = 0.8125; \
101 prefix##5XOffset   = 0.0625; \
102 prefix##5YOffset   = 0.4375; \
103 prefix##6XOffset   = 0.6875; \
104 prefix##6YOffset   = 0.9375; \
105 prefix##7XOffset   = 0.9375; \
106 prefix##7YOffset   = 0.0625;
129 #define GEN_SAMPLE_POS_16X(prefix) \  argument
130 prefix##0XOffset   = 0.5625; \
131 prefix##0YOffset   = 0.5625; \
132 prefix##1XOffset   = 0.4375; \
133 prefix##1YOffset   = 0.3125; \
134 prefix##2XOffset   = 0.3125; \
135 prefix##2YOffset   = 0.6250; \
136 prefix##3XOffset   = 0.7500; \
137 prefix##3YOffset   = 0.4375; \
138 prefix##4XOffset   = 0.1875; \
139 prefix##4YOffset   = 0.3750; \
140 prefix##5XOffset   = 0.6250; \
141 prefix##5YOffset   = 0.8125; \
142 prefix##6XOffset   = 0.8125; \
143 prefix##6YOffset   = 0.6875; \
144 prefix##7XOffset   = 0.6875; \
145 prefix##7YOffset   = 0.1875; \
146 prefix##8XOffset   = 0.3750; \
147 prefix##8YOffset   = 0.8750; \
148 prefix##9XOffset   = 0.5000; \
149 prefix##9YOffset   = 0.0625; \
150 prefix##10XOffset  = 0.2500; \
151 prefix##10YOffset  = 0.1250; \
152 prefix##11XOffset  = 0.1250; \
153 prefix##11YOffset  = 0.7500; \
154 prefix##12XOffset  = 0.0000; \
155 prefix##12YOffset  = 0.5000; \
156 prefix##13XOffset  = 0.9375; \
157 prefix##13YOffset  = 0.2500; \
158 prefix##14XOffset  = 0.8750; \
159 prefix##14YOffset  = 0.9375; \
160 prefix##15XOffset  = 0.0625; \
161 prefix##15YOffset  = 0.0000;