// Calculate where to sample, and with what weight, if one wants to use
// the GPU's bilinear hardware to sample w1 * x[0] + w2 * x[1].
-static inline void combine_two_samples(float w1, float w2, float *offset, float *total_weight)
-{
- assert(w1 * w2 >= 0.0f); // Should not have differing signs.
- if (fabs(w1 + w2) < 1e-6) {
- *offset = 0.5f;
- *total_weight = 0.0f;
- } else {
- *offset = w2 / (w1 + w2);
- *total_weight = w1 + w2;
- }
- assert(*offset >= 0.0f);
- assert(*offset <= 1.0f);
-}
+void combine_two_samples(float w1, float w2, float *offset, float *total_weight);
#ifdef NDEBUG
#define check_error()