tools/spec: split the output code into subsections
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parent
504cd3946e
commit
05867df536
316
tools/spec.py
316
tools/spec.py
@ -715,6 +715,171 @@ def parse_extensions(reg:registry, root):
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reg.extensions[name] = extension(node)
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###############################################################################
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def write_header(path:str, q):
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with open(path, 'w') as dst:
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dst.write("#pragma once\n")
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# Write the declarations and definitions for all types.
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for obj in q:
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dst.write(obj.declare())
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dst.write('\n')
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dst.write(obj.define(reg))
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dst.write('\n')
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# Define the default case for device and instance type traits.
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dst.write("""
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#include <type_traits>
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/// A type trait that tests if a Vulkan type is an instance type
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template <typename NativeT>
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struct is_instance:
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public std::false_type
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{};
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/// A type trait that tests if a Vulkan type is a device type
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template <typename NativeT>
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struct is_device:
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public std::false_type
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{};
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template <typename T>
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constexpr auto is_instance_v = is_instance<T>::value;
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template <typename T>
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constexpr auto is_device_v = is_device<T>::value;
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""")
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# Specialise traits for device and instance types.
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for obj in q:
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if not isinstance(obj,handle):
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continue
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device_value = "true_type" if obj.has_parent("VkDevice", reg) else "false_type"
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instance_value = "true_type" if obj.has_parent("VkInstance", reg) else "false_type"
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dst.write(f"""
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template <> struct is_instance<{obj.name}>: public std::{instance_value} {{ }};
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template <> struct is_device<{obj.name}>: public std::{device_value} {{ }};
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""")
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##-----------------------------------------------------------------------------
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def write_icd(path:str, q):
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with open(path, 'w') as icd:
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commands = [i for i in q if isinstance(i, command)]
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instance_commands = [i for i in commands if i.is_instance(reg)]
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device_commands = [i for i in commands if i.is_device(reg)]
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assert len(instance_commands) + len(device_commands) == len(commands)
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icd.write(f"""
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#include "vk.hpp"
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#include <cruft/util/preprocessor.hpp>
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#define MAP_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in commands)})
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#define MAP_INSTANCE_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in instance_commands)})
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#define MAP_DEVICE_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in device_commands)})
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namespace cruft::vk::icd {{
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class vendor;
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struct func {{
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void *handle;
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void const *table;
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}};
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struct instance_table {{
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instance_table (vendor &);
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""")
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for obj in instance_commands:
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icd.write(f"{obj.result} (*{obj.name}) ({','.join(p.param for p in obj.params)}) = nullptr;\n")
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icd.write("""};
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struct device_table {
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""")
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for obj in device_commands:
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icd.write(f"{obj.result} (*{obj.name}) ({','.join(p.param for p in obj.params)}) = nullptr;\n")
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icd.write("""
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};
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}
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""")
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##-----------------------------------------------------------------------------
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def write_dispatch(path:str, q):
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with open(path, 'w') as dispatch:
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dispatch.write("""
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#include "../vk.hpp"
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#include "vtable.hpp"
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#include "icd/dispatch.hpp"
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#include <cruft/util/debug.hpp>
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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static cruft::vk::icd::instance_table const *i_table [[maybe_unused]] = nullptr;
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static cruft::vk::icd::device_table const *d_table [[maybe_unused]] = nullptr;
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void (*cruft_vk_icdGetInstanceProcAddr) (
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VkInstance instance,
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const char* pName
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) = nullptr;
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void cruft::vk::icd::init (vendor const &impl)
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{
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cruft_vk_icdGetInstanceProcAddr = impl.vtable.GetInstanceProc;
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}
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""")
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for obj in (i for i in q if isinstance(i, command)):
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first_arg = reg.types[obj.params[0].type]
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if not isinstance(first_arg, handle):
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dispatch.write(f"""
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extern "C" {obj.result} {rename(obj.name)} ({", ".join(p.param for p in obj.params)}) noexcept {{
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unimplemented ();
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}}""")
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continue
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if first_arg.has_parent('VkDevice', reg):
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table = "d_table";
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elif first_arg.has_parent('VkInstance', reg):
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table = 'i_table'
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else:
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raise Exception("Unknown param type")
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dispatch.write(f"""
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extern "C" {obj.result} {rename(obj.name)} ({", ".join(p.param for p in obj.params)}) noexcept {{
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using first_arg_t = std::decay_t<decltype({obj.params[0].name})>;
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if constexpr (is_instance_v<first_arg_t>) {{
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auto const entry = reinterpret_cast<cruft::vk::icd::func const*> ({obj.params[0].name});
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auto const *table = reinterpret_cast<decltype({table})> (entry->table);
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return (table->{obj.name})(
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reinterpret_cast<decltype({obj.params[0].name})> (entry->handle)
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{", ".join([''] + [p.name for p in obj.params[1:]])}
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);
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}} else {{
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unimplemented ();
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}}
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}}
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""")
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###############################################################################
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def enqueue_type(name:str, queued:Set[str], types:Dict[str,type]):
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if name in queued:
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@ -784,151 +949,6 @@ if __name__ == '__main__':
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extensions = ["VK_KHR_swapchain", "VK_EXT_debug_report", "VK_KHR_external_memory"]
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q = reg.serialise(args.platform)
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with open(args.dst, 'w') as dst:
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dst.write("#pragma once\n")
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for obj in q:
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dst.write(obj.declare())
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dst.write('\n')
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dst.write(obj.define(reg))
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dst.write('\n')
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dst.write("""
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#include <type_traits>
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template <typename NativeT>
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struct is_instance:
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public std::false_type
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{};
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template <typename NativeT>
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struct is_device:
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public std::false_type
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{};
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template <typename T>
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constexpr auto is_instance_v = is_instance<T>::value;
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template <typename T>
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constexpr auto is_device_v = is_device<T>::value;
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""")
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for obj in q:
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if not isinstance(obj,handle):
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continue
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device_value = "true_type" if obj.has_parent("VkDevice", reg) else "false_type"
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instance_value = "true_type" if obj.has_parent("VkInstance", reg) else "false_type"
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dst.write(f"""
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template <> struct is_instance<{obj.name}>: public std::{instance_value} {{ }};
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template <> struct is_device<{obj.name}>: public std::{device_value} {{ }};
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""")
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with open(args.icd, 'w') as icd:
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commands = [i for i in q if isinstance(i, command)]
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instance_commands = [i for i in commands if i.is_instance(reg)]
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device_commands = [i for i in commands if i.is_device(reg)]
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assert len(instance_commands) + len(device_commands) == len(commands)
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icd.write(f"""
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#include "vk.hpp"
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#include <cruft/util/preprocessor.hpp>
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#define MAP_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in commands)})
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#define MAP_INSTANCE_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in instance_commands)})
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#define MAP_DEVICE_COMMANDS(FUNC) MAP0(FUNC,{",".join(i.name for i in device_commands)})
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namespace cruft::vk::icd {{
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class vendor;
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struct func {{
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void *handle;
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void const *table;
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}};
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struct instance_table {{
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instance_table (vendor &);
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""")
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for obj in instance_commands:
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icd.write(f"{obj.result} (*{obj.name}) ({','.join(p.param for p in obj.params)}) = nullptr;\n")
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icd.write("""};
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struct device_table {
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""")
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for obj in device_commands:
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icd.write(f"{obj.result} (*{obj.name}) ({','.join(p.param for p in obj.params)}) = nullptr;\n")
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icd.write("""
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};
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}
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""")
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with open(args.dispatch, 'w') as dispatch:
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dispatch.write("""
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#include "../vk.hpp"
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#include "vtable.hpp"
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#include "icd/dispatch.hpp"
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#include <cruft/util/debug.hpp>
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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static cruft::vk::icd::instance_table const *i_table [[maybe_unused]] = nullptr;
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static cruft::vk::icd::device_table const *d_table [[maybe_unused]] = nullptr;
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void (*cruft_vk_icdGetInstanceProcAddr) (
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VkInstance instance,
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const char* pName
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) = nullptr;
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void cruft::vk::icd::init (vendor const &impl)
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{
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cruft_vk_icdGetInstanceProcAddr = impl.vtable.GetInstanceProc;
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}
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""")
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for obj in commands:
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first_arg = reg.types[obj.params[0].type]
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if not isinstance(first_arg, handle):
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dispatch.write(f"""
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extern "C" {obj.result} {rename(obj.name)} ({", ".join(p.param for p in obj.params)}) noexcept {{
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unimplemented ();
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}}""")
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continue
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if first_arg.has_parent('VkDevice', reg):
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table = "d_table";
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elif first_arg.has_parent('VkInstance', reg):
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table = 'i_table'
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else:
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raise Exception("Unknown param type")
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dispatch.write(f"""
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extern "C" {obj.result} {rename(obj.name)} ({", ".join(p.param for p in obj.params)}) noexcept {{
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using first_arg_t = std::decay_t<decltype({obj.params[0].name})>;
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if constexpr (is_instance_v<first_arg_t>) {{
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auto const entry = reinterpret_cast<cruft::vk::icd::func const*> ({obj.params[0].name});
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auto const *table = reinterpret_cast<decltype({table})> (entry->table);
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return (table->{obj.name})(
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reinterpret_cast<decltype({obj.params[0].name})> (entry->handle)
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{", ".join([''] + [p.name for p in obj.params[1:]])}
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);
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}} else {{
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unimplemented ();
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}}
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}}
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""")
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write_header(args.dst, q)
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write_icd(args.icd, q)
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write_dispatch(args.dispatch, q)
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