alphard/stable-diffusion.cpp
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fix: avoid coredump when steps == 1

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This commit is contained in:
leejet 2023-09-04 21:44:38 +08:00
parent f6ff06fcb7
commit 34a118d407
1 changed files with 10 additions and 1 deletions
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stable-diffusion.cpp
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@ -2659,10 +2659,19 @@ struct DiscreteSchedule {
float sigmas[TIMESTEPS]; float sigmas[TIMESTEPS];
float log_sigmas[TIMESTEPS]; float log_sigmas[TIMESTEPS];
std::vector<float> get_sigmas(int n) { std::vector<float> get_sigmas(uint32_t n) {
std::vector<float> result; std::vector<float> result;
int t_max = TIMESTEPS - 1; int t_max = TIMESTEPS - 1;
if (n == 0) {
return result;
} else if (n == 1) {
result.push_back(t_to_sigma(t_max));
result.push_back(0);
return result;
}
float step = static_cast<float>(t_max) / static_cast<float>(n - 1); float step = static_cast<float>(t_max) / static_cast<float>(n - 1);
for (int i = 0; i < n; ++i) { for (int i = 0; i < n; ++i) {
float t = t_max - step * i; float t = t_max - step * i;