- vec4 x = LAST_INPUT(tc);
- return
- vec4(PREFIX(weight)[ 0]) * LAST_INPUT(tc - 7.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 1]) * LAST_INPUT(tc - 6.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 2]) * LAST_INPUT(tc - 5.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 3]) * LAST_INPUT(tc - 4.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 4]) * LAST_INPUT(tc - 3.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 5]) * LAST_INPUT(tc - 2.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 6]) * LAST_INPUT(tc - PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 7]) * LAST_INPUT(tc) +
- vec4(PREFIX(weight)[ 8]) * LAST_INPUT(tc + PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[ 9]) * LAST_INPUT(tc + 2.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[10]) * LAST_INPUT(tc + 3.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[11]) * LAST_INPUT(tc + 4.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[12]) * LAST_INPUT(tc + 5.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[13]) * LAST_INPUT(tc + 6.0 * PREFIX(pixel_offset)) +
- vec4(PREFIX(weight)[14]) * LAST_INPUT(tc + 7.0 * PREFIX(pixel_offset));
+ vec4 sum = vec4(PREFIX(samples)[0].y) * INPUT(tc);
+ for (int i = 1; i < NUM_TAPS / 2 + 1; ++i) {
+ vec2 sample = PREFIX(samples)[i];
+ vec2 sample1_tc = tc, sample2_tc = tc;
+#if DIRECTION_VERTICAL
+ sample1_tc.y -= sample.x;
+ sample2_tc.y += sample.x;
+#else
+ sample1_tc.x -= sample.x;
+ sample2_tc.x += sample.x;
+#endif
+ sum += vec4(sample.y) * (INPUT(sample1_tc) + INPUT(sample2_tc));
+ }
+ return sum;