/*
 * Copyright 2011-2015 Branimir Karadzic. All rights reserved.
 * License: https://github.com/bkaradzic/bgfx/blob/master/LICENSE
 *
 * vim: set tabstop=4 expandtab:
 */

#ifndef BGFX_C99_H_HEADER_GUARD
#define BGFX_C99_H_HEADER_GUARD

#include <stdarg.h>  // va_list
#include <stdbool.h> // bool
#include <stdint.h>  // uint32_t
#include <stdlib.h>  // size_t

#ifndef BGFX_SHARED_LIB_BUILD
#    define BGFX_SHARED_LIB_BUILD 0
#endif // BGFX_SHARED_LIB_BUILD

#ifndef BGFX_SHARED_LIB_USE
#    define BGFX_SHARED_LIB_USE 0
#endif // BGFX_SHARED_LIB_USE

#if defined(_MSC_VER)
#   if BGFX_SHARED_LIB_BUILD
#       define BGFX_SHARED_LIB_API __declspec(dllexport)
#   elif BGFX_SHARED_LIB_USE
#       define BGFX_SHARED_LIB_API __declspec(dllimport)
#   else
#       define BGFX_SHARED_LIB_API
#   endif // BGFX_SHARED_LIB_*
#else
#   define BGFX_SHARED_LIB_API
#endif // defined(_MSC_VER)

#if defined(__cplusplus)
#   define BGFX_C_API extern "C" BGFX_SHARED_LIB_API
#else
#   define BGFX_C_API BGFX_SHARED_LIB_API
#endif // defined(__cplusplus)

#include <bgfx/bgfxdefines.h>
#include <bgfx/c99/bgfxplatform.h>

typedef enum bgfx_renderer_type
{
    BGFX_RENDERER_TYPE_NULL,
    BGFX_RENDERER_TYPE_DIRECT3D9,
    BGFX_RENDERER_TYPE_DIRECT3D11,
    BGFX_RENDERER_TYPE_DIRECT3D12,
    BGFX_RENDERER_TYPE_METAL,
    BGFX_RENDERER_TYPE_OPENGLES,
    BGFX_RENDERER_TYPE_OPENGL,
    BGFX_RENDERER_TYPE_VULKAN,

    BGFX_RENDERER_TYPE_COUNT

} bgfx_renderer_type_t;

typedef enum bgfx_access
{
    BGFX_ACCESS_READ,
    BGFX_ACCESS_WRITE,
    BGFX_ACCESS_READWRITE,

    BGFX_ACCESS_COUNT

} bgfx_access_t;

typedef enum bgfx_attrib
{
    BGFX_ATTRIB_POSITION,
    BGFX_ATTRIB_NORMAL,
    BGFX_ATTRIB_TANGENT,
    BGFX_ATTRIB_BITANGENT,
    BGFX_ATTRIB_COLOR0,
    BGFX_ATTRIB_COLOR1,
    BGFX_ATTRIB_INDICES,
    BGFX_ATTRIB_WEIGHT,
    BGFX_ATTRIB_TEXCOORD0,
    BGFX_ATTRIB_TEXCOORD1,
    BGFX_ATTRIB_TEXCOORD2,
    BGFX_ATTRIB_TEXCOORD3,
    BGFX_ATTRIB_TEXCOORD4,
    BGFX_ATTRIB_TEXCOORD5,
    BGFX_ATTRIB_TEXCOORD6,
    BGFX_ATTRIB_TEXCOORD7,

    BGFX_ATTRIB_COUNT

} bgfx_attrib_t;

typedef enum bgfx_attrib_type
{
    BGFX_ATTRIB_TYPE_UINT8,
    BGFX_ATTRIB_TYPE_UINT10,
    BGFX_ATTRIB_TYPE_INT16,
    BGFX_ATTRIB_TYPE_HALF,
    BGFX_ATTRIB_TYPE_FLOAT,

    BGFX_ATTRIB_TYPE_COUNT

} bgfx_attrib_type_t;

typedef enum bgfx_texture_format
{
    BGFX_TEXTURE_FORMAT_BC1,
    BGFX_TEXTURE_FORMAT_BC2,
    BGFX_TEXTURE_FORMAT_BC3,
    BGFX_TEXTURE_FORMAT_BC4,
    BGFX_TEXTURE_FORMAT_BC5,
    BGFX_TEXTURE_FORMAT_BC6H,
    BGFX_TEXTURE_FORMAT_BC7,
    BGFX_TEXTURE_FORMAT_ETC1,
    BGFX_TEXTURE_FORMAT_ETC2,
    BGFX_TEXTURE_FORMAT_ETC2A,
    BGFX_TEXTURE_FORMAT_ETC2A1,
    BGFX_TEXTURE_FORMAT_PTC12,
    BGFX_TEXTURE_FORMAT_PTC14,
    BGFX_TEXTURE_FORMAT_PTC12A,
    BGFX_TEXTURE_FORMAT_PTC14A,
    BGFX_TEXTURE_FORMAT_PTC22,
    BGFX_TEXTURE_FORMAT_PTC24,

    BGFX_TEXTURE_FORMAT_UNKNOWN,

    BGFX_TEXTURE_FORMAT_R1,
    BGFX_TEXTURE_FORMAT_A8,
    BGFX_TEXTURE_FORMAT_R8,
    BGFX_TEXTURE_FORMAT_R8I,
    BGFX_TEXTURE_FORMAT_R8U,
    BGFX_TEXTURE_FORMAT_R8S,
    BGFX_TEXTURE_FORMAT_R16,
    BGFX_TEXTURE_FORMAT_R16I,
    BGFX_TEXTURE_FORMAT_R16U,
    BGFX_TEXTURE_FORMAT_R16F,
    BGFX_TEXTURE_FORMAT_R16S,
    BGFX_TEXTURE_FORMAT_R32I,
    BGFX_TEXTURE_FORMAT_R32U,
    BGFX_TEXTURE_FORMAT_R32F,
    BGFX_TEXTURE_FORMAT_RG8,
    BGFX_TEXTURE_FORMAT_RG8I,
    BGFX_TEXTURE_FORMAT_RG8U,
    BGFX_TEXTURE_FORMAT_RG8S,
    BGFX_TEXTURE_FORMAT_RG16,
    BGFX_TEXTURE_FORMAT_RG16I,
    BGFX_TEXTURE_FORMAT_RG16U,
    BGFX_TEXTURE_FORMAT_RG16F,
    BGFX_TEXTURE_FORMAT_RG16S,
    BGFX_TEXTURE_FORMAT_RG32I,
    BGFX_TEXTURE_FORMAT_RG32U,
    BGFX_TEXTURE_FORMAT_RG32F,
    BGFX_TEXTURE_FORMAT_RGB9E5F,
    BGFX_TEXTURE_FORMAT_BGRA8,
    BGFX_TEXTURE_FORMAT_RGBA8,
    BGFX_TEXTURE_FORMAT_RGBA8I,
    BGFX_TEXTURE_FORMAT_RGBA8U,
    BGFX_TEXTURE_FORMAT_RGBA8S,
    BGFX_TEXTURE_FORMAT_RGBA16,
    BGFX_TEXTURE_FORMAT_RGBA16I,
    BGFX_TEXTURE_FORMAT_RGBA16U,
    BGFX_TEXTURE_FORMAT_RGBA16F,
    BGFX_TEXTURE_FORMAT_RGBA16S,
    BGFX_TEXTURE_FORMAT_RGBA32I,
    BGFX_TEXTURE_FORMAT_RGBA32U,
    BGFX_TEXTURE_FORMAT_RGBA32F,
    BGFX_TEXTURE_FORMAT_R5G6B5,
    BGFX_TEXTURE_FORMAT_RGBA4,
    BGFX_TEXTURE_FORMAT_RGB5A1,
    BGFX_TEXTURE_FORMAT_RGB10A2,
    BGFX_TEXTURE_FORMAT_R11G11B10F,

    BGFX_TEXTURE_FORMAT_UNKNOWN_DEPTH,

    BGFX_TEXTURE_FORMAT_D16,
    BGFX_TEXTURE_FORMAT_D24,
    BGFX_TEXTURE_FORMAT_D24S8,
    BGFX_TEXTURE_FORMAT_D32,
    BGFX_TEXTURE_FORMAT_D16F,
    BGFX_TEXTURE_FORMAT_D24F,
    BGFX_TEXTURE_FORMAT_D32F,
    BGFX_TEXTURE_FORMAT_D0S8,

    BGFX_TEXTURE_FORMAT_COUNT

} bgfx_texture_format_t;

typedef enum bgfx_uniform_type
{
    BGFX_UNIFORM_TYPE_INT1,
    BGFX_UNIFORM_TYPE_END,

    BGFX_UNIFORM_TYPE_VEC4,
    BGFX_UNIFORM_TYPE_MAT3,
    BGFX_UNIFORM_TYPE_MAT4,

    BGFX_UNIFORM_TYPE_COUNT

} bgfx_uniform_type_t;

typedef enum bgfx_backbuffer_ratio
{
    BGFX_BACKBUFFER_RATIO_EQUAL,
    BGFX_BACKBUFFER_RATIO_HALF,
    BGFX_BACKBUFFER_RATIO_QUARTER,
    BGFX_BACKBUFFER_RATIO_EIGHTH,
    BGFX_BACKBUFFER_RATIO_SIXTEENTH,
    BGFX_BACKBUFFER_RATIO_DOUBLE,

    BGFX_BACKBUFFER_RATIO_COUNT

} bgfx_backbuffer_ratio_t;

typedef enum bgfx_occlusion_query_result
{
    BGFX_OCCLUSION_QUERY_RESULT_INVISIBLE,
    BGFX_OCCLUSION_QUERY_RESULT_VISIBLE,
    BGFX_OCCLUSION_QUERY_RESULT_NORESULT,

    BGFX_OCCLUSION_QUERY_RESULT_COUNT

} bgfx_occlusion_query_result_t;

#define BGFX_HANDLE_T(_name) \
    typedef struct _name { uint16_t idx; } _name##_t

BGFX_HANDLE_T(bgfx_indirect_buffer_handle);
BGFX_HANDLE_T(bgfx_dynamic_index_buffer_handle);
BGFX_HANDLE_T(bgfx_dynamic_vertex_buffer_handle);
BGFX_HANDLE_T(bgfx_frame_buffer_handle);
BGFX_HANDLE_T(bgfx_index_buffer_handle);
BGFX_HANDLE_T(bgfx_occlusion_query_handle);
BGFX_HANDLE_T(bgfx_program_handle);
BGFX_HANDLE_T(bgfx_shader_handle);
BGFX_HANDLE_T(bgfx_texture_handle);
BGFX_HANDLE_T(bgfx_uniform_handle);
BGFX_HANDLE_T(bgfx_vertex_buffer_handle);
BGFX_HANDLE_T(bgfx_vertex_decl_handle);

#undef BGFX_HANDLE_T

/**/
typedef void (*bgfx_release_fn_t)(void* _ptr, void* _userData);

/**/
typedef struct bgfx_memory
{
    uint8_t* data;
    uint32_t size;

} bgfx_memory_t;

/**/
typedef struct bgfx_transform
{
    float* data;
    uint16_t num;

} bgfx_transform_t;

/**/
typedef struct bgfx_hmd_eye
{
    float rotation[4];
    float translation[3];
    float fov[4];
    float adjust[3];
    float pixelsPerTanAngle[2];

} bgfx_hmd_eye_t;

/**/
typedef struct bgfx_hmd
{
    bgfx_hmd_eye_t eye[2];
    uint16_t width;
    uint16_t height;
    uint32_t deviceWidth;
    uint32_t deviceHeight;
    uint8_t flags;

} bgfx_hmd_t;

/**/
typedef struct bgfx_stats
{
    uint64_t cpuTime;
    uint64_t cpuTimerFreq;

    uint64_t gpuTime;
    uint64_t gpuTimerFreq;

} bgfx_stats_t;

/**/
typedef struct bgfx_vertex_decl
{
    uint32_t hash;
    uint16_t stride;
    uint16_t offset[BGFX_ATTRIB_COUNT];
    uint16_t attributes[BGFX_ATTRIB_COUNT];

} bgfx_vertex_decl_t;

/**/
typedef struct bgfx_transient_index_buffer
{
    uint8_t* data;
    uint32_t size;
    bgfx_index_buffer_handle_t handle;
    uint32_t startIndex;

} bgfx_transient_index_buffer_t;

/**/
typedef struct bgfx_transient_vertex_buffer
{
    uint8_t* data;
    uint32_t size;
    uint32_t startVertex;
    uint16_t stride;
    bgfx_vertex_buffer_handle_t handle;
    bgfx_vertex_decl_handle_t decl;

} bgfx_transient_vertex_buffer_t;

/**/
typedef struct bgfx_instance_data_buffer
{
    uint8_t* data;
    uint32_t size;
    uint32_t offset;
    uint32_t num;
    uint16_t stride;
    bgfx_vertex_buffer_handle_t handle;

} bgfx_instance_data_buffer_t;

/**/
typedef struct bgfx_texture_info
{
    bgfx_texture_format_t format;
    uint32_t storageSize;
    uint16_t width;
    uint16_t height;
    uint16_t depth;
    uint8_t numMips;
    uint8_t bitsPerPixel;
    bool    cubeMap;

} bgfx_texture_info_t;

/**/
typedef struct bgfx_caps_gpu
{
    uint16_t vendorId;
    uint16_t deviceId;

} bgfx_caps_gpu_t;

/**/
typedef struct bgfx_caps
{
    bgfx_renderer_type_t rendererType;

    uint64_t supported;

    uint32_t maxDrawCalls;
    uint16_t maxTextureSize;
    uint16_t maxViews;
    uint8_t  maxFBAttachments;
    uint8_t  numGPUs;

    uint16_t vendorId;
    uint16_t deviceId;
    bgfx_caps_gpu_t gpu[4];

    uint16_t formats[BGFX_TEXTURE_FORMAT_COUNT];

} bgfx_caps_t;

/**/
typedef enum bgfx_fatal
{
    BGFX_FATAL_DEBUG_CHECK,
    BGFX_FATAL_MINIMUM_REQUIRED_SPECS,
    BGFX_FATAL_INVALID_SHADER,
    BGFX_FATAL_UNABLE_TO_INITIALIZE,
    BGFX_FATAL_UNABLE_TO_CREATE_TEXTURE,
    BGFX_FATAL_DEVICE_LOST,

    BGFX_FATAL_COUNT

} bgfx_fatal_t;

/**/
typedef struct bgfx_callback_interface
{
    const struct bgfx_callback_vtbl* vtbl;

} bgfx_callback_interface_t;

/**/
typedef struct bgfx_callback_vtbl
{
    void (*fatal)(bgfx_callback_interface_t* _this, bgfx_fatal_t _code, const char* _str);
    void (*trace_vargs)(bgfx_callback_interface_t* _this, const char* _filePath, uint16_t _line, const char* _format, va_list _argList);
    uint32_t (*cache_read_size)(bgfx_callback_interface_t* _this, uint64_t _id);
    bool (*cache_read)(bgfx_callback_interface_t* _this, uint64_t _id, void* _data, uint32_t _size);
    void (*cache_write)(bgfx_callback_interface_t* _this, uint64_t _id, const void* _data, uint32_t _size);
    void (*screen_shot)(bgfx_callback_interface_t* _this, const char* _filePath, uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _data, uint32_t _size, bool _yflip);
    void (*capture_begin)(bgfx_callback_interface_t* _this, uint32_t _width, uint32_t _height, uint32_t _pitch, bgfx_texture_format_t _format, bool _yflip);
    void (*capture_end)(bgfx_callback_interface_t* _this);
    void (*capture_frame)(bgfx_callback_interface_t* _this, const void* _data, uint32_t _size);

} bgfx_callback_vtbl_t;

/**/
typedef struct bgfx_allocator_interface
{
    const struct bgfx_allocator_vtbl* vtbl;

} bgfx_allocator_interface_t;

/**/
typedef struct bgfx_allocator_vtbl
{
    void* (*realloc)(bgfx_allocator_interface_t* _this, void* _ptr, size_t _size, size_t _align, const char* _file, uint32_t _line);

} bgfx_allocator_vtbl_t;

/**/
typedef struct bgfx_interface_vtbl
{
    bgfx_render_frame_t (*render_frame)();
    void (*set_platform_data)(bgfx_platform_data_t* _pd);
    void (*vertex_decl_begin)(bgfx_vertex_decl_t* _decl, bgfx_renderer_type_t _renderer);
    void (*vertex_decl_add)(bgfx_vertex_decl_t* _decl, bgfx_attrib_t _attrib, uint8_t _num, bgfx_attrib_type_t _type, bool _normalized, bool _asInt);
    void (*vertex_decl_skip)(bgfx_vertex_decl_t* _decl, uint8_t _num);
    void (*vertex_decl_end)(bgfx_vertex_decl_t* _decl);
    void (*vertex_pack)(const float _input[4], bool _inputNormalized, bgfx_attrib_t _attr, const bgfx_vertex_decl_t* _decl, void* _data, uint32_t _index);
    void (*vertex_unpack)(float _output[4], bgfx_attrib_t _attr, const bgfx_vertex_decl_t* _decl, const void* _data, uint32_t _index);
    void (*vertex_convert)(const bgfx_vertex_decl_t* _destDecl, void* _destData, const bgfx_vertex_decl_t* _srcDecl, const void* _srcData, uint32_t _num);
    uint16_t (*weld_vertices)(uint16_t* _output, const bgfx_vertex_decl_t* _decl, const void* _data, uint16_t _num, float _epsilon);
    void (*image_swizzle_bgra8)(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
    void (*image_rgba8_downsample_2x2)(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
    uint8_t (*get_supported_renderers)(bgfx_renderer_type_t _enum[BGFX_RENDERER_TYPE_COUNT]);
    const char* (*get_renderer_name)(bgfx_renderer_type_t _type);
    bool (*init)(bgfx_renderer_type_t _type, uint16_t _vendorId, uint16_t _deviceId, bgfx_callback_interface_t* _callback, bgfx_allocator_interface_t* _allocator);
    void (*shutdown)();
    void (*reset)(uint32_t _width, uint32_t _height, uint32_t _flags);
    uint32_t (*frame)();
    bgfx_renderer_type_t (*get_renderer_type)();
    const bgfx_caps_t* (*get_caps)();
    const bgfx_hmd_t* (*get_hmd)();
    const bgfx_stats_t* (*get_stats)();
    const bgfx_memory_t* (*alloc)(uint32_t _size);
    const bgfx_memory_t* (*copy)(const void* _data, uint32_t _size);
    const bgfx_memory_t* (*make_ref)(const void* _data, uint32_t _size);
    const bgfx_memory_t* (*make_ref_release)(const void* _data, uint32_t _size, bgfx_release_fn_t _releaseFn, void* _userData);
    void (*set_debug)(uint32_t _debug);
    void (*dbg_text_clear)(uint8_t _attr, bool _small);
    void (*dbg_text_printf)(uint16_t _x, uint16_t _y, uint8_t _attr, const char* _format, ...);
    void (*dbg_text_image)(uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const void* _data, uint16_t _pitch);
    bgfx_index_buffer_handle_t (*create_index_buffer)(const bgfx_memory_t* _mem, uint16_t _flags);
    void (*destroy_index_buffer)(bgfx_index_buffer_handle_t _handle);
    bgfx_vertex_buffer_handle_t (*create_vertex_buffer)(const bgfx_memory_t* _mem, const bgfx_vertex_decl_t* _decl, uint16_t _flags);
    void (*destroy_vertex_buffer)(bgfx_vertex_buffer_handle_t _handle);
    bgfx_dynamic_index_buffer_handle_t (*create_dynamic_index_buffer)(uint32_t _num, uint16_t _flags);
    bgfx_dynamic_index_buffer_handle_t (*create_dynamic_index_buffer_mem)(const bgfx_memory_t* _mem, uint16_t _flags);
    void (*update_dynamic_index_buffer)(bgfx_dynamic_index_buffer_handle_t _handle, uint32_t _startIndex, const bgfx_memory_t* _mem);
    void (*destroy_dynamic_index_buffer)(bgfx_dynamic_index_buffer_handle_t _handle);
    bgfx_dynamic_vertex_buffer_handle_t (*create_dynamic_vertex_buffer)(uint32_t _num, const bgfx_vertex_decl_t* _decl, uint16_t _flags);
    bgfx_dynamic_vertex_buffer_handle_t (*create_dynamic_vertex_buffer_mem)(const bgfx_memory_t* _mem, const bgfx_vertex_decl_t* _decl, uint16_t _flags);
    void (*update_dynamic_vertex_buffer)(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _startVertex, const bgfx_memory_t* _mem);
    void (*destroy_dynamic_vertex_buffer)(bgfx_dynamic_vertex_buffer_handle_t _handle);
    bool (*check_avail_transient_index_buffer)(uint32_t _num);
    bool (*check_avail_transient_vertex_buffer)(uint32_t _num, const bgfx_vertex_decl_t* _decl);
    bool (*check_avail_instance_data_buffer)(uint32_t _num, uint16_t _stride);
    bool (*check_avail_transient_buffers)(uint32_t _numVertices, const bgfx_vertex_decl_t* _decl, uint32_t _numIndices);
    void (*alloc_transient_index_buffer)(bgfx_transient_index_buffer_t* _tib, uint32_t _num);
    void (*alloc_transient_vertex_buffer)(bgfx_transient_vertex_buffer_t* _tvb, uint32_t _num, const bgfx_vertex_decl_t* _decl);
    bool (*alloc_transient_buffers)(bgfx_transient_vertex_buffer_t* _tvb, const bgfx_vertex_decl_t* _decl, uint32_t _numVertices, bgfx_transient_index_buffer_t* _tib, uint32_t _numIndices);
    const bgfx_instance_data_buffer_t* (*alloc_instance_data_buffer)(uint32_t _num, uint16_t _stride);
    bgfx_indirect_buffer_handle_t (*create_indirect_buffer)(uint32_t _num);
    void (*destroy_indirect_buffer)(bgfx_indirect_buffer_handle_t _handle);
    bgfx_shader_handle_t (*create_shader)(const bgfx_memory_t* _mem);
    uint16_t (*get_shader_uniforms)(bgfx_shader_handle_t _handle, bgfx_uniform_handle_t* _uniforms, uint16_t _max);
    void (*destroy_shader)(bgfx_shader_handle_t _handle);
    bgfx_program_handle_t (*create_program)(bgfx_shader_handle_t _vsh, bgfx_shader_handle_t _fsh, bool _destroyShaders);
    bgfx_program_handle_t (*create_compute_program)(bgfx_shader_handle_t _csh, bool _destroyShaders);
    void (*destroy_program)(bgfx_program_handle_t _handle);
    void (*calc_texture_size)(bgfx_texture_info_t* _info, uint16_t _width, uint16_t _height, uint16_t _depth, bool _cubeMap, uint8_t _numMips, bgfx_texture_format_t _format);
    bgfx_texture_handle_t (*create_texture)(const bgfx_memory_t* _mem, uint32_t _flags, uint8_t _skip, bgfx_texture_info_t* _info);
    bgfx_texture_handle_t (*create_texture_2d)(uint16_t _width, uint16_t _height, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);
    bgfx_texture_handle_t (*create_texture_2d_scaled)(bgfx_backbuffer_ratio_t _ratio, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags);
    bgfx_texture_handle_t (*create_texture_3d)(uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);
    bgfx_texture_handle_t (*create_texture_cube)(uint16_t _size, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);
    void (*update_texture_2d)(bgfx_texture_handle_t _handle, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const bgfx_memory_t* _mem, uint16_t _pitch);
    void (*update_texture_3d)(bgfx_texture_handle_t _handle, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _z, uint16_t _width, uint16_t _height, uint16_t _depth, const bgfx_memory_t* _mem);
    void (*update_texture_cube)(bgfx_texture_handle_t _handle, uint8_t _side, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const bgfx_memory_t* _mem, uint16_t _pitch);
    void (*destroy_texture)(bgfx_texture_handle_t _handle);
    bgfx_frame_buffer_handle_t (*create_frame_buffer)(uint16_t _width, uint16_t _height, bgfx_texture_format_t _format, uint32_t _textureFlags);
    bgfx_frame_buffer_handle_t (*create_frame_buffer_scaled)(bgfx_backbuffer_ratio_t _ratio, bgfx_texture_format_t _format, uint32_t _textureFlags);
    bgfx_frame_buffer_handle_t (*create_frame_buffer_from_handles)(uint8_t _num, const bgfx_texture_handle_t* _handles, bool _destroyTextures);
    bgfx_frame_buffer_handle_t (*create_frame_buffer_from_nwh)(void* _nwh, uint16_t _width, uint16_t _height, bgfx_texture_format_t _depthFormat);
    void (*destroy_frame_buffer)(bgfx_frame_buffer_handle_t _handle);
    bgfx_uniform_handle_t (*create_uniform)(const char* _name, bgfx_uniform_type_t _type, uint16_t _num);
    void (*destroy_uniform)(bgfx_uniform_handle_t _handle);
    bgfx_occlusion_query_handle_t (*create_occlusion_query)();
    bgfx_occlusion_query_result_t (*get_result)(bgfx_occlusion_query_handle_t _handle);
    void (*destroy_occlusion_query)(bgfx_occlusion_query_handle_t _handle);
    void (*set_palette_color)(uint8_t _index, const float _rgba[4]);
    void (*set_view_name)(uint8_t _id, const char* _name);
    void (*set_view_rect)(uint8_t _id, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);
    void (*set_view_scissor)(uint8_t _id, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);
    void (*set_view_clear)(uint8_t _id, uint16_t _flags, uint32_t _rgba, float _depth, uint8_t _stencil);
    void (*set_view_clear_mrt)(uint8_t _id, uint16_t _flags, float _depth, uint8_t _stencil, uint8_t _0, uint8_t _1, uint8_t _2, uint8_t _3, uint8_t _4, uint8_t _5, uint8_t _6, uint8_t _7);
    void (*set_view_seq)(uint8_t _id, bool _enabled);
    void (*set_view_frame_buffer)(uint8_t _id, bgfx_frame_buffer_handle_t _handle);
    void (*set_view_transform)(uint8_t _id, const void* _view, const void* _proj);
    void (*set_view_transform_stereo)(uint8_t _id, const void* _view, const void* _projL, uint8_t _flags, const void* _projR);
    void (*set_view_remap)(uint8_t _id, uint8_t _num, const void* _remap);
    void (*set_marker)(const char* _marker);
    void (*set_state)(uint64_t _state, uint32_t _rgba);
    void (*set_condition)(bgfx_occlusion_query_handle_t _handle, bool _visible);
    void (*set_stencil)(uint32_t _fstencil, uint32_t _bstencil);
    uint16_t (*set_scissor)(uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);
    void (*set_scissor_cached)(uint16_t _cache);
    uint32_t (*set_transform)(const void* _mtx, uint16_t _num);
    uint32_t (*alloc_transform)(bgfx_transform_t* _transform, uint16_t _num);
    void (*set_transform_cached)(uint32_t _cache, uint16_t _num);
    void (*set_uniform)(bgfx_uniform_handle_t _handle, const void* _value, uint16_t _num);
    void (*set_index_buffer)(bgfx_index_buffer_handle_t _handle, uint32_t _firstIndex, uint32_t _numIndices);
    void (*set_dynamic_index_buffer)(bgfx_dynamic_index_buffer_handle_t _handle, uint32_t _firstIndex, uint32_t _numIndices);
    void (*set_transient_index_buffer)(const bgfx_transient_index_buffer_t* _tib, uint32_t _firstIndex, uint32_t _numIndices);
    void (*set_vertex_buffer)(bgfx_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _numVertices);
    void (*set_dynamic_vertex_buffer)(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _numVertices);
    void (*set_transient_vertex_buffer)(const bgfx_transient_vertex_buffer_t* _tvb, uint32_t _startVertex, uint32_t _numVertices);
    void (*set_instance_data_buffer)(const bgfx_instance_data_buffer_t* _idb, uint32_t _num);
    void (*set_instance_data_from_vertex_buffer)(bgfx_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _num);
    void (*set_instance_data_from_dynamic_vertex_buffer)(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _num);
    void (*set_texture)(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_texture_handle_t _handle, uint32_t _flags);
    void (*set_texture_from_frame_buffer)(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_frame_buffer_handle_t _handle, uint8_t _attachment, uint32_t _flags);
    uint32_t (*touch)(uint8_t _id);
    uint32_t (*submit)(uint8_t _id, bgfx_program_handle_t _handle, int32_t _depth);
    uint32_t (*submit_occlusion_query)(uint8_t _id, bgfx_program_handle_t _program, bgfx_occlusion_query_handle_t _occlusionQuery, int32_t _depth);
    uint32_t (*submit_indirect)(uint8_t _id, bgfx_program_handle_t _handle, bgfx_indirect_buffer_handle_t _indirectHandle, uint16_t _start, uint16_t _num, int32_t _depth);
    void (*set_image)(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_texture_handle_t _handle, uint8_t _mip, bgfx_access_t _access, bgfx_texture_format_t _format);
    void (*set_image_from_frame_buffer)(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_frame_buffer_handle_t _handle, uint8_t _attachment, bgfx_access_t _access, bgfx_texture_format_t _format);
    void (*set_compute_index_buffer)(uint8_t _stage, bgfx_index_buffer_handle_t _handle, bgfx_access_t _access);
    void (*set_compute_vertex_buffer)(uint8_t _stage, bgfx_vertex_buffer_handle_t _handle, bgfx_access_t _access);
    void (*set_compute_dynamic_index_buffer)(uint8_t _stage, bgfx_dynamic_index_buffer_handle_t _handle, bgfx_access_t _access);
    void (*set_compute_dynamic_vertex_buffer)(uint8_t _stage, bgfx_dynamic_vertex_buffer_handle_t _handle, bgfx_access_t _access);
    void (*set_compute_indirect_buffer)(uint8_t _stage, bgfx_indirect_buffer_handle_t _handle, bgfx_access_t _access);
    uint32_t (*dispatch)(uint8_t _id, bgfx_program_handle_t _handle, uint16_t _numX, uint16_t _numY, uint16_t _numZ, uint8_t _flags);
    uint32_t (*dispatch_indirect)(uint8_t _id, bgfx_program_handle_t _handle, bgfx_indirect_buffer_handle_t _indirectHandle, uint16_t _start, uint16_t _num, uint8_t _flags);
    void (*discard)();
    void (*blit)(uint8_t _id, bgfx_texture_handle_t _dst, uint8_t _dstMip, uint16_t _dstX, uint16_t _dstY, uint16_t _dstZ, bgfx_texture_handle_t _src, uint8_t _srcMip, uint16_t _srcX, uint16_t _srcY, uint16_t _srcZ, uint16_t _width, uint16_t _height, uint16_t _depth);
    void (*save_screen_shot)(const char* _filePath);

} bgfx_interface_vtbl_t;

typedef bgfx_interface_vtbl_t* (*PFN_BGFX_GET_INTERFACE)(uint32_t _version);

/**/
BGFX_C_API void bgfx_vertex_decl_begin(bgfx_vertex_decl_t* _decl, bgfx_renderer_type_t _renderer);

/**/
BGFX_C_API void bgfx_vertex_decl_add(bgfx_vertex_decl_t* _decl, bgfx_attrib_t _attrib, uint8_t _num, bgfx_attrib_type_t _type, bool _normalized, bool _asInt);

/**/
BGFX_C_API void bgfx_vertex_decl_skip(bgfx_vertex_decl_t* _decl, uint8_t _num);

/**/
BGFX_C_API void bgfx_vertex_decl_end(bgfx_vertex_decl_t* _decl);

/**/
BGFX_C_API void bgfx_vertex_pack(const float _input[4], bool _inputNormalized, bgfx_attrib_t _attr, const bgfx_vertex_decl_t* _decl, void* _data, uint32_t _index);

/**/
BGFX_C_API void bgfx_vertex_unpack(float _output[4], bgfx_attrib_t _attr, const bgfx_vertex_decl_t* _decl, const void* _data, uint32_t _index);

/**/
BGFX_C_API void bgfx_vertex_convert(const bgfx_vertex_decl_t* _destDecl, void* _destData, const bgfx_vertex_decl_t* _srcDecl, const void* _srcData, uint32_t _num);

/**/
BGFX_C_API uint16_t bgfx_weld_vertices(uint16_t* _output, const bgfx_vertex_decl_t* _decl, const void* _data, uint16_t _num, float _epsilon);

/**/
BGFX_C_API void bgfx_image_swizzle_bgra8(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);

/**/
BGFX_C_API void bgfx_image_rgba8_downsample_2x2(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);

/**/
BGFX_C_API uint8_t bgfx_get_supported_renderers(bgfx_renderer_type_t _enum[BGFX_RENDERER_TYPE_COUNT]);

/**/
BGFX_C_API const char* bgfx_get_renderer_name(bgfx_renderer_type_t _type);

/**/
BGFX_C_API bool bgfx_init(bgfx_renderer_type_t _type, uint16_t _vendorId, uint16_t _deviceId, bgfx_callback_interface_t* _callback, bgfx_allocator_interface_t* _allocator);

/**/
BGFX_C_API void bgfx_shutdown();

/**/
BGFX_C_API void bgfx_reset(uint32_t _width, uint32_t _height, uint32_t _flags);

/**/
BGFX_C_API uint32_t bgfx_frame();

/**/
BGFX_C_API bgfx_renderer_type_t bgfx_get_renderer_type();

/**/
BGFX_C_API const bgfx_caps_t* bgfx_get_caps();

/**/
BGFX_C_API const bgfx_hmd_t* bgfx_get_hmd();

/**/
BGFX_C_API const bgfx_stats_t* bgfx_get_stats();

/**/
BGFX_C_API const bgfx_memory_t* bgfx_alloc(uint32_t _size);

/**/
BGFX_C_API const bgfx_memory_t* bgfx_copy(const void* _data, uint32_t _size);

/**/
BGFX_C_API const bgfx_memory_t* bgfx_make_ref(const void* _data, uint32_t _size);

/**/
BGFX_C_API const bgfx_memory_t* bgfx_make_ref_release(const void* _data, uint32_t _size, bgfx_release_fn_t _releaseFn, void* _userData);

/**/
BGFX_C_API void bgfx_set_debug(uint32_t _debug);

/**/
BGFX_C_API void bgfx_dbg_text_clear(uint8_t _attr, bool _small);

/**/
BGFX_C_API void bgfx_dbg_text_printf(uint16_t _x, uint16_t _y, uint8_t _attr, const char* _format, ...);

/**/
BGFX_C_API void bgfx_dbg_text_image(uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const void* _data, uint16_t _pitch);

/**/
BGFX_C_API bgfx_index_buffer_handle_t bgfx_create_index_buffer(const bgfx_memory_t* _mem, uint16_t _flags);

/**/
BGFX_C_API void bgfx_destroy_index_buffer(bgfx_index_buffer_handle_t _handle);

/**/
BGFX_C_API bgfx_vertex_buffer_handle_t bgfx_create_vertex_buffer(const bgfx_memory_t* _mem, const bgfx_vertex_decl_t* _decl, uint16_t _flags);

/**/
BGFX_C_API void bgfx_destroy_vertex_buffer(bgfx_vertex_buffer_handle_t _handle);

/**/
BGFX_C_API bgfx_dynamic_index_buffer_handle_t bgfx_create_dynamic_index_buffer(uint32_t _num, uint16_t _flags);

/**/
BGFX_C_API bgfx_dynamic_index_buffer_handle_t bgfx_create_dynamic_index_buffer_mem(const bgfx_memory_t* _mem, uint16_t _flags);

/**/
BGFX_C_API void bgfx_update_dynamic_index_buffer(bgfx_dynamic_index_buffer_handle_t _handle, uint32_t _startIndex, const bgfx_memory_t* _mem);

/**/
BGFX_C_API void bgfx_destroy_dynamic_index_buffer(bgfx_dynamic_index_buffer_handle_t _handle);

/**/
BGFX_C_API bgfx_dynamic_vertex_buffer_handle_t bgfx_create_dynamic_vertex_buffer(uint32_t _num, const bgfx_vertex_decl_t* _decl, uint16_t _flags);

/**/
BGFX_C_API bgfx_dynamic_vertex_buffer_handle_t bgfx_create_dynamic_vertex_buffer_mem(const bgfx_memory_t* _mem, const bgfx_vertex_decl_t* _decl, uint16_t _flags);

/**/
BGFX_C_API void bgfx_update_dynamic_vertex_buffer(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _startVertex, const bgfx_memory_t* _mem);

/**/
BGFX_C_API void bgfx_destroy_dynamic_vertex_buffer(bgfx_dynamic_vertex_buffer_handle_t _handle);

/**/
BGFX_C_API bool bgfx_check_avail_transient_index_buffer(uint32_t _num);

/**/
BGFX_C_API bool bgfx_check_avail_transient_vertex_buffer(uint32_t _num, const bgfx_vertex_decl_t* _decl);

/**/
BGFX_C_API bool bgfx_check_avail_instance_data_buffer(uint32_t _num, uint16_t _stride);

/**/
BGFX_C_API bool bgfx_check_avail_transient_buffers(uint32_t _numVertices, const bgfx_vertex_decl_t* _decl, uint32_t _numIndices);

/**/
BGFX_C_API void bgfx_alloc_transient_index_buffer(bgfx_transient_index_buffer_t* _tib, uint32_t _num);

/**/
BGFX_C_API void bgfx_alloc_transient_vertex_buffer(bgfx_transient_vertex_buffer_t* _tvb, uint32_t _num, const bgfx_vertex_decl_t* _decl);

/**/
BGFX_C_API bool bgfx_alloc_transient_buffers(bgfx_transient_vertex_buffer_t* _tvb, const bgfx_vertex_decl_t* _decl, uint32_t _numVertices, bgfx_transient_index_buffer_t* _tib, uint32_t _numIndices);

/**/
BGFX_C_API const bgfx_instance_data_buffer_t* bgfx_alloc_instance_data_buffer(uint32_t _num, uint16_t _stride);

/**/
BGFX_C_API bgfx_indirect_buffer_handle_t bgfx_create_indirect_buffer(uint32_t _num);

/**/
BGFX_C_API void bgfx_destroy_indirect_buffer(bgfx_indirect_buffer_handle_t _handle);

/**/
BGFX_C_API bgfx_shader_handle_t bgfx_create_shader(const bgfx_memory_t* _mem);

/**/
BGFX_C_API uint16_t bgfx_get_shader_uniforms(bgfx_shader_handle_t _handle, bgfx_uniform_handle_t* _uniforms, uint16_t _max);

/**/
BGFX_C_API void bgfx_destroy_shader(bgfx_shader_handle_t _handle);

/**/
BGFX_C_API bgfx_program_handle_t bgfx_create_program(bgfx_shader_handle_t _vsh, bgfx_shader_handle_t _fsh, bool _destroyShaders);

/**/
BGFX_C_API bgfx_program_handle_t bgfx_create_compute_program(bgfx_shader_handle_t _csh, bool _destroyShaders);

/**/
BGFX_C_API void bgfx_destroy_program(bgfx_program_handle_t _handle);

/**/
BGFX_C_API void bgfx_calc_texture_size(bgfx_texture_info_t* _info, uint16_t _width, uint16_t _height, uint16_t _depth, bool _cubeMap, uint8_t _numMips, bgfx_texture_format_t _format);

/**/
BGFX_C_API bgfx_texture_handle_t bgfx_create_texture(const bgfx_memory_t* _mem, uint32_t _flags, uint8_t _skip, bgfx_texture_info_t* _info);

/**/
BGFX_C_API bgfx_texture_handle_t bgfx_create_texture_2d(uint16_t _width, uint16_t _height, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);

/**/
BGFX_C_API bgfx_texture_handle_t bgfx_create_texture_2d_scaled(bgfx_backbuffer_ratio_t _ratio, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags);

/**/
BGFX_C_API bgfx_texture_handle_t bgfx_create_texture_3d(uint16_t _width, uint16_t _height, uint16_t _depth, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);

/**/
BGFX_C_API bgfx_texture_handle_t bgfx_create_texture_cube(uint16_t _size, uint8_t _numMips, bgfx_texture_format_t _format, uint32_t _flags, const bgfx_memory_t* _mem);

/**/
BGFX_C_API void bgfx_update_texture_2d(bgfx_texture_handle_t _handle, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const bgfx_memory_t* _mem, uint16_t _pitch);

/**/
BGFX_C_API void bgfx_update_texture_3d(bgfx_texture_handle_t _handle, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _z, uint16_t _width, uint16_t _height, uint16_t _depth, const bgfx_memory_t* _mem);

/**/
BGFX_C_API void bgfx_update_texture_cube(bgfx_texture_handle_t _handle, uint8_t _side, uint8_t _mip, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height, const bgfx_memory_t* _mem, uint16_t _pitch);

/**/
BGFX_C_API void bgfx_destroy_texture(bgfx_texture_handle_t _handle);

/**/
BGFX_C_API bgfx_frame_buffer_handle_t bgfx_create_frame_buffer(uint16_t _width, uint16_t _height, bgfx_texture_format_t _format, uint32_t _textureFlags);

/**/
BGFX_C_API bgfx_frame_buffer_handle_t bgfx_create_frame_buffer_scaled(bgfx_backbuffer_ratio_t _ratio, bgfx_texture_format_t _format, uint32_t _textureFlags);

/**/
BGFX_C_API bgfx_frame_buffer_handle_t bgfx_create_frame_buffer_from_handles(uint8_t _num, const bgfx_texture_handle_t* _handles, bool _destroyTextures);

/**/
BGFX_C_API bgfx_frame_buffer_handle_t bgfx_create_frame_buffer_from_nwh(void* _nwh, uint16_t _width, uint16_t _height, bgfx_texture_format_t _depthFormat);

/**/
BGFX_C_API void bgfx_destroy_frame_buffer(bgfx_frame_buffer_handle_t _handle);

/**/
BGFX_C_API bgfx_uniform_handle_t bgfx_create_uniform(const char* _name, bgfx_uniform_type_t _type, uint16_t _num);

/**/
BGFX_C_API void bgfx_destroy_uniform(bgfx_uniform_handle_t _handle);

/**/
BGFX_C_API bgfx_occlusion_query_handle_t bgfx_create_occlusion_query();

/**/
BGFX_C_API bgfx_occlusion_query_result_t bgfx_get_result(bgfx_occlusion_query_handle_t _handle);

/**/
BGFX_C_API void bgfx_destroy_occlusion_query(bgfx_occlusion_query_handle_t _handle);

/**/
BGFX_C_API void bgfx_set_palette_color(uint8_t _index, const float _rgba[4]);

/**/
BGFX_C_API void bgfx_set_view_name(uint8_t _id, const char* _name);

/**/
BGFX_C_API void bgfx_set_view_rect(uint8_t _id, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);

/**/
BGFX_C_API void bgfx_set_view_scissor(uint8_t _id, uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);

/**/
BGFX_C_API void bgfx_set_view_clear(uint8_t _id, uint16_t _flags, uint32_t _rgba, float _depth, uint8_t _stencil);

/**/
BGFX_C_API void bgfx_set_view_clear_mrt(uint8_t _id, uint16_t _flags, float _depth, uint8_t _stencil, uint8_t _0, uint8_t _1, uint8_t _2, uint8_t _3, uint8_t _4, uint8_t _5, uint8_t _6, uint8_t _7);

/**/
BGFX_C_API void bgfx_set_view_seq(uint8_t _id, bool _enabled);

/**/
BGFX_C_API void bgfx_set_view_frame_buffer(uint8_t _id, bgfx_frame_buffer_handle_t _handle);

/**/
BGFX_C_API void bgfx_set_view_transform(uint8_t _id, const void* _view, const void* _proj);

/**/
BGFX_C_API void bgfx_set_view_transform_stereo(uint8_t _id, const void* _view, const void* _projL, uint8_t _flags, const void* _projR);

/**/
BGFX_C_API void bgfx_set_view_remap(uint8_t _id, uint8_t _num, const void* _remap);

/**/
BGFX_C_API void bgfx_set_marker(const char* _marker);

/**/
BGFX_C_API void bgfx_set_state(uint64_t _state, uint32_t _rgba);

/**/
BGFX_C_API void bgfx_set_condition(bgfx_occlusion_query_handle_t _handle, bool _visible);

/**/
BGFX_C_API void bgfx_set_stencil(uint32_t _fstencil, uint32_t _bstencil);

/**/
BGFX_C_API uint16_t bgfx_set_scissor(uint16_t _x, uint16_t _y, uint16_t _width, uint16_t _height);

/**/
BGFX_C_API void bgfx_set_scissor_cached(uint16_t _cache);

/**/
BGFX_C_API uint32_t bgfx_set_transform(const void* _mtx, uint16_t _num);

/**/
BGFX_C_API uint32_t bgfx_alloc_transform(bgfx_transform_t* _transform, uint16_t _num);

/**/
BGFX_C_API void bgfx_set_transform_cached(uint32_t _cache, uint16_t _num);

/**/
BGFX_C_API void bgfx_set_uniform(bgfx_uniform_handle_t _handle, const void* _value, uint16_t _num);

/**/
BGFX_C_API void bgfx_set_index_buffer(bgfx_index_buffer_handle_t _handle, uint32_t _firstIndex, uint32_t _numIndices);

/**/
BGFX_C_API void bgfx_set_dynamic_index_buffer(bgfx_dynamic_index_buffer_handle_t _handle, uint32_t _firstIndex, uint32_t _numIndices);

/**/
BGFX_C_API void bgfx_set_transient_index_buffer(const bgfx_transient_index_buffer_t* _tib, uint32_t _firstIndex, uint32_t _numIndices);

/**/
BGFX_C_API void bgfx_set_vertex_buffer(bgfx_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _numVertices);

/**/
BGFX_C_API void bgfx_set_dynamic_vertex_buffer(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _numVertices);

/**/
BGFX_C_API void bgfx_set_transient_vertex_buffer(const bgfx_transient_vertex_buffer_t* _tvb, uint32_t _startVertex, uint32_t _numVertices);

/**/
BGFX_C_API void bgfx_set_instance_data_buffer(const bgfx_instance_data_buffer_t* _idb, uint32_t _num);

/**/
BGFX_C_API void bgfx_set_instance_data_from_vertex_buffer(bgfx_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _num);

/**/
BGFX_C_API void bgfx_set_instance_data_from_dynamic_vertex_buffer(bgfx_dynamic_vertex_buffer_handle_t _handle, uint32_t _startVertex, uint32_t _num);

/**/
BGFX_C_API void bgfx_set_texture(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_texture_handle_t _handle, uint32_t _flags);

/**/
BGFX_C_API void bgfx_set_texture_from_frame_buffer(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_frame_buffer_handle_t _handle, uint8_t _attachment, uint32_t _flags);

/**/
BGFX_C_API uint32_t bgfx_touch(uint8_t _id);

/**/
BGFX_C_API uint32_t bgfx_submit(uint8_t _id, bgfx_program_handle_t _handle, int32_t _depth);

/**/
BGFX_C_API uint32_t bgfx_submit_occlusion_query(uint8_t _id, bgfx_program_handle_t _program, bgfx_occlusion_query_handle_t _occlusionQuery, int32_t _depth);

/**/
BGFX_C_API uint32_t bgfx_submit_indirect(uint8_t _id, bgfx_program_handle_t _handle, bgfx_indirect_buffer_handle_t _indirectHandle, uint16_t _start, uint16_t _num, int32_t _depth);

/**/
BGFX_C_API void bgfx_set_image(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_texture_handle_t _handle, uint8_t _mip, bgfx_access_t _access, bgfx_texture_format_t _format);

/**/
BGFX_C_API void bgfx_set_image_from_frame_buffer(uint8_t _stage, bgfx_uniform_handle_t _sampler, bgfx_frame_buffer_handle_t _handle, uint8_t _attachment, bgfx_access_t _access, bgfx_texture_format_t _format);

/**/
BGFX_C_API void bgfx_set_compute_index_buffer(uint8_t _stage, bgfx_index_buffer_handle_t _handle, bgfx_access_t _access);

/**/
BGFX_C_API void bgfx_set_compute_vertex_buffer(uint8_t _stage, bgfx_vertex_buffer_handle_t _handle, bgfx_access_t _access);

/**/
BGFX_C_API void bgfx_set_compute_dynamic_index_buffer(uint8_t _stage, bgfx_dynamic_index_buffer_handle_t _handle, bgfx_access_t _access);

/**/
BGFX_C_API void bgfx_set_compute_dynamic_vertex_buffer(uint8_t _stage, bgfx_dynamic_vertex_buffer_handle_t _handle, bgfx_access_t _access);

/**/
BGFX_C_API void bgfx_set_compute_indirect_buffer(uint8_t _stage, bgfx_indirect_buffer_handle_t _handle, bgfx_access_t _access);

/**/
BGFX_C_API uint32_t bgfx_dispatch(uint8_t _id, bgfx_program_handle_t _handle, uint16_t _numX, uint16_t _numY, uint16_t _numZ, uint8_t _flags);

/**/
BGFX_C_API uint32_t bgfx_dispatch_indirect(uint8_t _id, bgfx_program_handle_t _handle, bgfx_indirect_buffer_handle_t _indirectHandle, uint16_t _start, uint16_t _num, uint8_t _flags);

/**/
BGFX_C_API void bgfx_discard();

/**/
BGFX_C_API void bgfx_blit(uint8_t _id, bgfx_texture_handle_t _dst, uint8_t _dstMip, uint16_t _dstX, uint16_t _dstY, uint16_t _dstZ, bgfx_texture_handle_t _src, uint8_t _srcMip, uint16_t _srcX, uint16_t _srcY, uint16_t _srcZ, uint16_t _width, uint16_t _height, uint16_t _depth);

/**/
BGFX_C_API void bgfx_save_screen_shot(const char* _filePath);

#endif // BGFX_C99_H_HEADER_GUARD
