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Allow overriding Vulkan library #1

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Allow overriding Vulkan library #1

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1 change: 1 addition & 0 deletions jni_bindings/src/main/java/git/artdeell/mojoexec/MojoExec.java
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Original file line number Diff line number Diff line change
Expand Up @@ -4,6 +4,7 @@ public class MojoExec {
public static native boolean prepareEgl(String eglPath, boolean useBypass, boolean useGles, int glesVersion);
public static native void setDisplayParams(int width, int height, float hz);
public static native void setUseTurnip(boolean enable);
public static native void overrideTurnipLibrary(String turnipLibrary);
public static native void preloadVulkan();
public static native void setNativeLibraryDir(String dir);
}
14 changes: 12 additions & 2 deletions vulkan_loader.c
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@
#include <mojoexec.h>

static bool turnip_enabled = false;
static char* library_override = NULL;

#ifdef ENABLE_TURNIP_LOADER
bool load_turnip_vulkan() {
Expand All @@ -23,9 +24,10 @@ bool load_turnip_vulkan() {
if(!linker_ns_load(mojoexec_native_dir)) return NULL;
void* linkerhook = linker_ns_dlopen("liblinkerhook.so", RTLD_LOCAL | RTLD_NOW);
if(linkerhook == NULL) return NULL;
void* turnip_driver_handle = linker_ns_dlopen("libvulkan_freedreno.so", RTLD_LOCAL | RTLD_NOW);
char* turnip_library = library_override ? library_override : "libvulkan_freedreno.so";
void* turnip_driver_handle = linker_ns_dlopen(turnip_library, RTLD_LOCAL | RTLD_NOW);
if(turnip_driver_handle == NULL) {
printf("MojoExec: Failed to load Turnip!\n%s\n", dlerror());
printf("MojoExec: Failed to load Turnip (%s)!\n%s\n", turnip_library, dlerror());
goto fail_l;
}

Expand Down Expand Up @@ -79,4 +81,12 @@ Java_git_artdeell_mojoexec_MojoExec_preloadVulkan(JNIEnv *env, jclass clazz) {
printf("MojoExec: Failed to preload Turnip!\n");
}
#endif
}

JNIEXPORT void JNICALL
Java_git_artdeell_mojoexec_MojoExec_overrideTurnipLibrary(JNIEnv *env, jclass clazz, jstring turnip_library){
char* c_str = (*env)->GetStringUTF8Chars(env, turnip_library, NULL);
if(!c_str) return;
library_override = strdup(c_str);
(*env)->ReleaseStringUTFChars(env, turnip_library, c_str);
}