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cimplement.go
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cimplement.go
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package main
import (
"fmt"
"os"
"text/template"
)
func GenerateCImplementFile(config *Config, graph RegistryGraph) error {
fn := fmt.Sprintf("%s.c", config.OutputName)
header := fmt.Sprintf("%s.h", config.OutputName)
var err error
t := template.New(fn).Funcs(template.FuncMap{
"cparam": handleCArraySyntax,
"globalProcs": func() []string {
keys := make([]string, 0, len(config.GlobalProcs))
for _, v := range config.GlobalProcs {
if v != "vkGetInstanceProcAddr" {
keys = append(keys, v)
}
}
return keys
},
})
if t, err = t.Parse(cImplementPrimaryTemplate); err != nil {
return err
}
data := []interface{}{}
store := func(path []*RegistryNode) {
node := path[len(path)-1]
if command := node.CommandElement(); command != nil {
if len(command.Alias()) == 0 {
if ok, cmd := CommandToData(node, *command); ok {
data = append(data, cmd)
}
}
}
}
graph.DepthFirstSearch(config.Enabled(), store)
var fh *os.File
fh, err = os.OpenFile(fn, os.O_WRONLY|os.O_TRUNC|os.O_CREATE, 0644)
if err != nil {
return err
}
defer fh.Close()
err = t.Execute(fh, struct {
Header string
Data []interface{}
}{header, data})
if err != nil {
return err
}
return nil
}
const cImplementPrimaryTemplate = `#include <dlfcn.h>
#include "{{.Header}}"
// Global for proc addresses.
vksProcAddr vksProcAddresses;
void *vulkanHandle = NULL;
#if defined(_WIN64) || defined(_WIN32)
#define LIB_NAME "vulkan.dll"
#elif defined(__linux__) || defined(__FreeBSD__) || defined (__NetBSD__) || defined(__OpenBSD__) || defined(__DragonFly__)
#define LIB_NAME "libvulkan.so"
#elif defined(__APPLE__) || defined(__MACH__)
#define LIB_NAME "libvulkan.dylib"
#endif
// default dynamic loader?
VkResult vksDynamicLoad() {
// TODO Start: Abstract this block to be specialized as needed.
vulkanHandle = dlopen(LIB_NAME, RTLD_NOW | RTLD_LOCAL);
if (vulkanHandle == NULL) {
return VK_ERROR_UNKNOWN;
}
vksProcAddresses.pvkGetInstanceProcAddr = dlsym(vulkanHandle, "vkGetInstanceProcAddr");
// TODO end
{{range globalProcs}}
vksProcAddresses.p{{.}} = vkGetInstanceProcAddr(&vksProcAddresses, NULL, "{{.}}");{{end}}
return VK_SUCCESS;
}
void vksDynamicUnload() {
dlclose(vulkanHandle);
}
// call getProcAddress for all the commands.
void vksLoadInstanceProcAddrs(VkInstance hndl, vksProcAddr* addrs) { {{range .Data}}{{with .Data}}
addrs->p{{.Name.C}} = vkGetInstanceProcAddr(&vksProcAddresses, hndl, "{{.Name.C}}");{{end}}{{end}}
}
// call getProcAddress for all the commands.
void vksLoadDeviceProcAddrs(VkDevice hndl, vksProcAddr* addrs, vksProcAddr* parent) { {{range .Data}}{{with .Data}}
addrs->p{{.Name.C}} = vkGetDeviceProcAddr(parent, hndl, "{{.Name.C}}");{{end}}{{end}}
}
{{range .Data}}{{with .Data}}{{.Return.C}} {{.Name.C}}(vksProcAddr* addrs{{range .Parameters}}, {{cparam .Type .Name}}{{end}}) {
{{if ne .Return.C "void"}}{{.Return.C}} ret = {{end}}(((PFN_{{.Name.C}})addrs->p{{.Name.C}})({{range $idx, $param := .Parameters}}{{if ne $idx 0}}, {{end}}{{$param.Name.C}}{{end}}));{{if ne .Return.C "void"}}
return ret;{{end}}
}
{{end}}{{end}}`