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/*
*
* Copyright (c) 2014-2021 The Khronos Group Inc.
* Copyright (c) 2014-2021 Valve Corporation
* Copyright (c) 2014-2021 LunarG, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* Author: Jon Ashburn <jon@lunarg.com>
* Author: Courtney Goeltzenleuchter <courtney@LunarG.com>
* Author: Chia-I Wu <olvaffe@gmail.com>
* Author: Chia-I Wu <olv@lunarg.com>
* Author: Mark Lobodzinski <mark@LunarG.com>
* Author: Lenny Komow <lenny@lunarg.com>
* Author: Charles Giessen <charles@lunarg.com>
*
*/
#pragma once
#include <stdint.h>
#include <stdbool.h>
#include "vulkan/vulkan_core.h"
struct loader_instance;
enum vulkan_loader_debug_flags {
VULKAN_LOADER_INFO_BIT = 0x01,
VULKAN_LOADER_WARN_BIT = 0x02,
VULKAN_LOADER_PERF_BIT = 0x04,
VULKAN_LOADER_ERROR_BIT = 0x08,
VULKAN_LOADER_DEBUG_BIT = 0x10,
VULKAN_LOADER_LAYER_BIT = 0x20,
VULKAN_LOADER_DRIVER_BIT = 0x40,
VULKAN_LOADER_VALIDATION_BIT = 0x80,
VULKAN_LOADER_FATAL_ERROR_BIT = 0x100, // only forces the output to be printed to stderr, has no other effect
};
// Checks for the environment variable VK_LOADER_DEBUG and sets up the current debug level accordingly
// This should be called before any Vulkan API calls, eg in the initialization of the .dll or .so
void loader_init_global_debug_level(void);
// Sets the global debug level - used by global settings files
void loader_set_global_debug_level(uint32_t new_loader_debug);
// Writes a stringified version of enum vulkan_loader_debug_flags into a char array cmd_line_msg of length cmd_line_size
void generate_debug_flag_str(VkFlags msg_type, size_t cmd_line_size, char *cmd_line_msg);
// The asm declaration prevents name mangling which is necessary for macOS
#if defined(MODIFY_UNKNOWN_FUNCTION_DECLS)
#define ASM_NAME(name) __asm(name)
#else
#define ASM_NAME(name)
#endif
#if defined(__clang__)
#define DECORATE_PRINTF(_fmt_argnum, _first_param_num) __attribute__((format(printf, _fmt_argnum, _first_param_num)))
#elif defined(__GNUC__)
#define DECORATE_PRINTF(_fmt_argnum, _first_param_num) __attribute__((format(gnu_printf, _fmt_argnum, _first_param_num)))
#else
#define DECORATE_PRINTF(_fmt_num, _first_param_num)
#endif
// Logs a message to stderr
// May output to DebugUtils if the instance isn't null and the extension is enabled.
void DECORATE_PRINTF(4, 5) loader_log(const struct loader_instance *inst, VkFlags msg_type, int32_t msg_code, const char *format,
...) ASM_NAME("loader_log");
// Used for the assembly code to emit an specific error message
// This is a work around for linux 32 bit error handling not passing relocatable strings correctly
void loader_log_asm_function_not_supported(const struct loader_instance *inst, VkFlags msg_type, int32_t msg_code,
const char *func_name) ASM_NAME("loader_log_asm_function_not_supported");
#undef ASM_NAME
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