add set_txt2img_batch_count api

Author: Cyberhan123

.idea/workspace.xml

@@ -107,6 +107,10 @@ void set_txt2img_seed(sd_txt2img_options* opt, const int64_t seed) {
     opt->seed = seed;
 }
 
+void set_txt2img_batch_count(sd_txt2img_options* opt, int batch_count) {
+    opt->batch_count = batch_count;
+}
+
 void set_img2img_init_img(sd_img2img_options* opt, const char* init_img) {
     const auto init_image = code::base64_decode<std::vector<uint8_t>, std::string>(init_img);
     opt->init_img = new uint8_t[init_image.size()];

stable-diffusion-abi.cpp

@@ -45,6 +45,8 @@ STABLE_DIFFUSION_API void set_txt2img_sample_steps(sd_txt2img_options* opt, int
 
 STABLE_DIFFUSION_API void set_txt2img_seed(sd_txt2img_options* opt, int64_t seed);
 
+STABLE_DIFFUSION_API void set_txt2img_batch_count(sd_txt2img_options* opt, int batch_count);
+
 //================================================================================
 
 //==============================sd_img2img_options===============================