vaapi wip

src/vaapi.c

@@ -0,0 +1,41 @@
+#include "../include/vaapi.h"
+#include "../include/library_loader.h"
+#include <string.h>
+
+bool gsr_vaapi_load(gsr_vaapi *self) {
+    memset(self, 0, sizeof(gsr_vaapi));
+
+    dlerror(); /* clear */
+    void *lib = dlopen("libva.so.2", RTLD_LAZY);
+    if(!lib) {
+        fprintf(stderr, "gsr error: gsr_vaapi_load failed: failed to load libva.so, error: %s\n", dlerror());
+        return false;
+    }
+
+    dlsym_assign required_dlsym[] = {
+        { (void**)&self->vaExportSurfaceHandle, "vaExportSurfaceHandle" },
+        { (void**)&self->vaSyncSurface, "vaSyncSurface" },
+
+        { NULL, NULL }
+    };
+
+    if(!dlsym_load_list(lib, required_dlsym)) {
+        fprintf(stderr, "gsr error: gsr_vaapi_load failed: missing required symbols in libcuda.so/libcuda.so.1\n");
+        goto fail;
+    }
+
+    self->library = lib;
+    return true;
+
+    fail:
+    dlclose(lib);
+    memset(self, 0, sizeof(gsr_vaapi));
+    return false;
+}
+
+void gsr_vaapi_unload(gsr_vaapi *self) {
+    if(self->library) {
+        dlclose(self->library);
+        memset(self, 0, sizeof(gsr_vaapi));
+    }
+}