essence-os/desktop/prefix.h

506 lines
16 KiB
C++

/* This file is part of the Essence operating system. */
/* It is released under the terms of the MIT license -- see LICENSE.md. */
/* Written by: nakst. */
/* ----------------- Includes: */
#ifndef IncludedEssenceAPIHeader
#define IncludedEssenceAPIHeader
#include <limits.h>
#ifndef KERNEL
#include <stdint.h>
#include <stddef.h>
#include <stdbool.h>
#endif
#include <stdarg.h>
/* --------- Architecture defines: */
#if defined(__i386__)
#define ES_ARCH_X86_32
#define ES_BITS_32
#elif defined(__x86_64__)
#define ES_ARCH_X86_64
#define ES_BITS_64
#else
#error Architecture is not supported.
#endif
/* --------- C++/C differences: */
#ifdef __cplusplus
#define ES_EXTERN_C extern "C"
#define ES_CONSTRUCTOR(x) x
#define ES_NULL nullptr
/* Scoped defer: http://www.gingerbill.org/article/defer-in-cpp.html */
template <typename F> struct _EsDefer4 { F f; _EsDefer4(F f) : f(f) {} ~_EsDefer4() { f(); } };
template <typename F> _EsDefer4<F> _EsDeferFunction(F f) { return _EsDefer4<F>(f); }
#define EsDEFER_3(x) ES_C_PREPROCESSOR_JOIN(x, __COUNTER__)
#define _EsDefer5(code) auto EsDEFER_3(_defer_) = _EsDeferFunction([&](){code;})
#define EsDefer(code) _EsDefer5(code)
union EsGeneric {
uintptr_t u;
intptr_t i;
void *p;
inline EsGeneric() = default;
#ifdef ES_BITS_64
inline EsGeneric(uintptr_t y) { u = y; }
inline EsGeneric( intptr_t y) { i = y; }
#endif
inline EsGeneric(unsigned y) { u = y; }
inline EsGeneric( int y) { i = y; }
inline EsGeneric( void *y) { p = y; }
inline bool operator==(EsGeneric r) const { return r.u == u; }
};
#else
#define ES_EXTERN_C extern
#define ES_CONSTRUCTOR(x)
#define ES_NULL 0
typedef union {
uintptr_t u;
intptr_t i;
void *p;
} EsGeneric;
typedef struct EsElementPublic EsElementPublic;
#endif
/* --------- Macros: */
#ifdef ES_ARCH_X86_64
#define ES_API_BASE ((void **) 0x1000)
#define ES_SHARED_MEMORY_MAXIMUM_SIZE ((size_t) (1024) * 1024 * 1024 * 1024)
#define ES_PAGE_SIZE ((uintptr_t) 4096)
#define ES_PAGE_BITS (12)
typedef struct EsCRTjmp_buf {
uintptr_t rsp, rbp, rbx, r12, r13, r14, r15, rip;
} EsCRTjmp_buf;
#endif
#ifdef ES_ARCH_X86_32
#define ES_API_BASE ((void **) 0x1000)
#define ES_SHARED_MEMORY_MAXIMUM_SIZE ((size_t) 1024 * 1024 * 1024)
#define ES_PAGE_SIZE ((uintptr_t) 4096)
#define ES_PAGE_BITS (12)
typedef struct EsCRTjmp_buf {
uintptr_t esp, ebp, ebx, eip, esi, edi;
} EsCRTjmp_buf;
#endif
ES_EXTERN_C int _EsCRTsetjmp(EsCRTjmp_buf *env);
ES_EXTERN_C __attribute__((noreturn)) void _EsCRTlongjmp(EsCRTjmp_buf *env, int val);
#define EsCRTsetjmp(x) _EsCRTsetjmp(&(x))
#define EsCRTlongjmp(x, y) _EsCRTlongjmp(&(x), (y))
#define _ES_C_PREPROCESSOR_JOIN(x, y) x ## y
#define ES_C_PREPROCESSOR_JOIN(x, y) _ES_C_PREPROCESSOR_JOIN(x, y)
#define EsContainerOf(type, member, pointer) ((type *) ((uint8_t *) pointer - offsetof(type, member)))
#define ES_CHECK_ERROR(x) (((intptr_t) (x)) < (ES_SUCCESS))
#define ES_RECT_1(x) ((EsRectangle) { (int32_t) (x), (int32_t) (x), (int32_t) (x), (int32_t) (x) })
#define ES_RECT_1I(x) ((EsRectangle) { (int32_t) (x), (int32_t) -(x), (int32_t) (x), (int32_t) -(x) })
#define ES_RECT_1S(x) ((EsRectangle) { 0, (int32_t) (x), 0, (int32_t) (x) })
#define ES_RECT_2(x, y) ((EsRectangle) { (int32_t) (x), (int32_t) (x), (int32_t) (y), (int32_t) (y) })
#define ES_RECT_2I(x, y) ((EsRectangle) { (int32_t) (x), (int32_t) -(x), (int32_t) (y), (int32_t) -(y) })
#define ES_RECT_2S(x, y) ((EsRectangle) { 0, (int32_t) (x), 0, (int32_t) (y) })
#define ES_RECT_4(x, y, z, w) ((EsRectangle) { (int32_t) (x), (int32_t) (y), (int32_t) (z), (int32_t) (w) })
#define ES_RECT_4PD(x, y, w, h) ((EsRectangle) { (int32_t) (x), (int32_t) ((x) + (w)), (int32_t) (y), (int32_t) ((y) + (h)) })
#define ES_RECT_WIDTH(_r) ((_r).r - (_r).l)
#define ES_RECT_HEIGHT(_r) ((_r).b - (_r).t)
#define ES_RECT_TOTAL_H(_r) ((_r).r + (_r).l)
#define ES_RECT_TOTAL_V(_r) ((_r).b + (_r).t)
#define ES_RECT_SIZE(_r) ES_RECT_WIDTH(_r), ES_RECT_HEIGHT(_r)
#define ES_RECT_TOP_LEFT(_r) (_r).l, (_r).t
#define ES_RECT_BOTTOM_LEFT(_r) (_r).l, (_r).b
#define ES_RECT_BOTTOM_RIGHT(_r) (_r).r, (_r).b
#define ES_RECT_ALL(_r) (_r).l, (_r).r, (_r).t, (_r).b
#define ES_RECT_VALID(_r) ((_r).l < (_r).r && (_r).t < (_r).b) // This handles extreme values correctly!
#define ES_POINT(x, y) ((EsPoint) { (int32_t) (x), (int32_t) (y) })
#define EsKeyboardIsAltHeld() (EsKeyboardGetModifiers() & ES_MODIFIER_ALT)
#define EsKeyboardIsCtrlHeld() (EsKeyboardGetModifiers() & ES_MODIFIER_CTRL)
#define EsKeyboardIsShiftHeld() (EsKeyboardGetModifiers() & ES_MODIFIER_SHIFT)
#define ES_MEMORY_MOVE_BACKWARDS -
#define EsWaitSingle(object) EsWait(&object, 1, ES_WAIT_NO_TIMEOUT)
#define EsObjectUnmap EsMemoryUnreserve
#define EsElementSetEnabled(element, enabled) EsElementSetDisabled(element, !(enabled))
#define EsCommandSetEnabled(command, enabled) EsCommandSetDisabled(command, !(enabled))
#define EsClipboardHasText(clipboard) EsClipboardHasFormat(clipboard, ES_CLIPBOARD_FORMAT_TEXT)
#define ES_THEME_METRICS_GAP_ALL (ES_THEME_METRICS_GAP_MAJOR | ES_THEME_METRICS_GAP_MINOR | ES_THEME_METRICS_GAP_WRAP)
// Some common layouts...
#define ES_CELL_FILL (ES_CELL_H_FILL | ES_CELL_V_FILL)
#define ES_CELL_H_FILL (ES_CELL_H_PUSH | ES_CELL_H_EXPAND | ES_CELL_H_SHRINK)
#define ES_CELL_V_FILL (ES_CELL_V_PUSH | ES_CELL_V_EXPAND | ES_CELL_V_SHRINK)
#define ES_CELL_CENTER (ES_CELL_H_CENTER | ES_CELL_V_CENTER)
#define ES_CELL_PUSH (ES_CELL_H_PUSH | ES_CELL_V_PUSH)
#define ES_CELL_EXPAND (ES_CELL_H_EXPAND | ES_CELL_V_EXPAND)
#define ES_CELL_CORNER (ES_CELL_H_LEFT | ES_CELL_V_TOP)
#define ES_CELL_SHRINK (ES_CELL_H_SHRINK | ES_CELL_V_SHRINK)
#define ES_CELL_H_CENTER (ES_CELL_H_LEFT | ES_CELL_H_RIGHT)
#define ES_CELL_V_CENTER (ES_CELL_V_TOP | ES_CELL_V_BOTTOM)
#define EsLiteral(x) (char *) x, EsCStringLength((char *) x)
#ifndef ES_INSTANCE_TYPE
#define ES_INSTANCE_TYPE struct EsInstance
#else
struct ES_INSTANCE_TYPE;
#endif
#ifdef __cplusplus
#define EsInstanceCreate(_message, ...) (static_cast<ES_INSTANCE_TYPE *>(_EsInstanceCreate(sizeof(ES_INSTANCE_TYPE), _message, __VA_ARGS__)))
#else
#define EsInstanceCreate(_message, ...) ((ES_INSTANCE_TYPE *) _EsInstanceCreate(sizeof(ES_INSTANCE_TYPE), _message, __VA_ARGS__))
#endif
#define ES_SAMPLE_FORMAT_BYTES_PER_SAMPLE(x) \
((x) == ES_SAMPLE_FORMAT_U8 ? 1 : (x) == ES_SAMPLE_FORMAT_S16LE ? 2 : 4)
#define ES_EXTRACT_BITS(value, end, start) (((value) >> (start)) & ((1 << ((end) - (start) + 1)) - 1)) /* Moves the bits to the start. */
#define ES_ISOLATE_BITS(value, end, start) (((value)) & (((1 << ((end) - (start) + 1)) - 1) << (start))) /* Keeps the bits in place. */
#ifndef KERNEL
#ifdef ES_API
ES_EXTERN_C uintptr_t _APISyscall(uintptr_t argument0, uintptr_t argument1, uintptr_t argument2, uintptr_t unused, uintptr_t argument3, uintptr_t argument4);
#ifdef PAUSE_ON_USERLAND_CRASH
ES_EXTERN_C uintptr_t APISyscallCheckForCrash(uintptr_t argument0, uintptr_t argument1, uintptr_t argument2, uintptr_t unused, uintptr_t argument3, uintptr_t argument4);
#define EsSyscall(a, b, c, d, e) APISyscallCheckForCrash((a), (b), (c), 0, (d), (e))
#define _EsSyscall APISyscallCheckForCrash
#else
#define EsSyscall(a, b, c, d, e) _APISyscall((a), (b), (c), 0, (d), (e))
#define _EsSyscall _APISyscall
#endif
#else
#define EsSyscall(a, b, c, d, e) _EsSyscall((a), (b), (c), 0, (d), (e))
#endif
#endif
#define ES_STRUCT_PACKED __attribute__((packed))
#define ES_FUNCTION_OPTIMISE_O2 __attribute__((optimize("-O2")))
#define ES_FUNCTION_OPTIMISE_O3 __attribute__((optimize("-O3")))
#ifdef ES_BITS_64
#define ES_PTR64_MS32(x) ((uint32_t) ((uintptr_t) (x) >> 32))
#define ES_PTR64_LS32(x) ((uint32_t) ((uintptr_t) (x) & 0xFFFFFFFF))
#else
#define ES_PTR64_MS32(x) ((uint32_t) (0))
#define ES_PTR64_LS32(x) ((uint32_t) (x))
#endif
#define EsPerformanceTimerPush() double _performanceTimerStart = EsTimeStampMs()
#define EsPerformanceTimerPop() ((EsTimeStampMs() - _performanceTimerStart) / 1000.0)
/* --------- Algorithms: */
#define ES_MACRO_SORT(_name, _type, _compar, _contextType) void _name(_type *base, size_t nmemb, _contextType context) { \
(void) context; \
if (nmemb <= 1) return; \
\
if (nmemb <= 16) { \
for (uintptr_t i = 1; i < nmemb; i++) { \
for (intptr_t j = i; j > 0; j--) { \
_type *_left = base + j, *_right = _left - 1; \
int result; _compar if (result >= 0) break; \
\
_type swap = base[j]; \
base[j] = base[j - 1]; \
base[j - 1] = swap; \
} \
} \
\
return; \
} \
\
intptr_t i = -1, j = nmemb; \
\
while (true) { \
_type *_left, *_right = base; \
int result; \
\
while (true) { _left = base + ++i; _compar if (result >= 0) break; } \
while (true) { _left = base + --j; _compar if (result <= 0) break; } \
\
if (i >= j) break; \
\
_type swap = base[i]; \
base[i] = base[j]; \
base[j] = swap; \
} \
\
_name(base, ++j, context); \
_name(base + j, nmemb - j, context); \
} \
#define ES_MACRO_SEARCH(_count, _compar, _result, _found) \
do { \
if (_count) { \
intptr_t low = 0; \
intptr_t high = _count - 1; \
\
while (low <= high) { \
uintptr_t index = ((high - low) >> 1) + low; \
int result; \
_compar \
\
if (result < 0) { \
high = index - 1; \
} else if (result > 0) { \
low = index + 1; \
} else { \
_result = index; \
_found = true; \
break; \
} \
} \
\
if (high < low) { \
_result = low; \
_found = false; \
} \
} else { \
_result = 0; \
_found = false; \
} \
} while (0)
/* --------- Misc: */
typedef uint64_t _EsLongConstant;
typedef long double EsLongDouble;
typedef const char *EsCString;
#ifndef ES_API
ES_EXTERN_C void _init();
ES_EXTERN_C void _start();
#endif
#define EsAssert(x) do { if (!(x)) { EsAssertionFailure(__FILE__, __LINE__); } } while (0)
#define EsCRTassert EsAssert
#define ES_INFINITY __builtin_inff()
#define ES_PI (3.1415926535897932384626433832795028841971693994)
/* --------- Internals: */
#if defined(ES_API) || defined(KERNEL)
#define ES_PRIVATE_APIS
#endif
#ifdef ES_PRIVATE_APIS
struct _EsPOSIXSyscall {
intptr_t index;
intptr_t arguments[7];
};
#define BLEND_WINDOW_MATERIAL_NONE (0)
#define BLEND_WINDOW_MATERIAL_GLASS (1)
#define BLEND_WINDOW_MATERIAL_LIGHT_BLUR (2)
#ifdef ES_ARCH_X86_64
#define BUNDLE_FILE_MAP_ADDRESS (0x100000000UL)
#define BUNDLE_FILE_DESKTOP_MAP_ADDRESS (0xF0000000UL)
#endif
#ifdef ES_ARCH_X86_32
#define BUNDLE_FILE_MAP_ADDRESS (0xA0000000UL)
#define BUNDLE_FILE_DESKTOP_MAP_ADDRESS (0xBC000000UL)
#endif
struct BundleHeader {
#define BUNDLE_SIGNATURE (0x63BDAF45)
uint32_t signature;
uint32_t version;
uint32_t fileCount;
uint32_t _unused;
uint64_t mapAddress;
};
struct BundleFile {
uint64_t nameCRC64;
uint64_t bytes;
uint64_t offset;
};
struct MemoryAvailable {
size_t available;
size_t total;
};
struct GlobalData {
volatile int32_t clickChainTimeoutMs;
volatile float uiScale;
volatile bool swapLeftAndRightButtons;
volatile bool showCursorShadow;
volatile bool useSmartQuotes;
volatile bool enableHoverState;
volatile float animationTimeMultiplier;
volatile uint64_t schedulerTimeMs;
volatile uint64_t schedulerTimeOffset;
volatile uint16_t keyboardLayout;
};
struct SystemStartupDataHeader {
/* TODO Make mount points and devices equal, somehow? */
size_t initialMountPointCount;
size_t initialDeviceCount;
uintptr_t themeCursorData;
uintptr_t desktopRequestPipe, desktopResponsePipe;
};
#ifdef KERNEL
#define K_BOOT_DRIVE ""
#else
#define K_BOOT_DRIVE "0:"
#endif
#define K_SYSTEM_FOLDER_NAME "Essence"
#define K_SYSTEM_FOLDER K_BOOT_DRIVE "/" K_SYSTEM_FOLDER_NAME
#define K_DESKTOP_EXECUTABLE K_SYSTEM_FOLDER "/Desktop.esx"
#define K_SYSTEM_CONFIGURATION K_SYSTEM_FOLDER "/Default.ini"
#define WINDOW_SET_BITS_NORMAL (0)
#define WINDOW_SET_BITS_AFTER_RESIZE (1)
#define FAST_SCROLL_HORIZONTAL (1)
#define FAST_SCROLL_VERTICAL (2)
#define FAST_SCROLL_DO_NOT_ATTEMPT (3)
#define CURSOR_USE_ACCELERATION (1 << 0)
#define CURSOR_USE_ALT_SLOW (1 << 1)
#define CURSOR_SPEED(x) ((x) >> 16)
#define CURSOR_TRAILS(x) (((x) >> 13) & 7)
#ifdef __cplusplus
extern "C" const void *EsBufferRead(struct EsBuffer *buffer, size_t readBytes);
extern "C" const void *EsBufferReadMany(struct EsBuffer *buffer, size_t a, size_t b);
extern "C" void *EsBufferWrite(EsBuffer *buffer, const void *source, size_t writeBytes);
#define EsBuffer_MEMBER_FUNCTIONS \
inline const void *Read(size_t readBytes) { return EsBufferRead(this, readBytes); } \
inline const void *Read(size_t a, size_t b) { return EsBufferReadMany(this, a, b); } \
inline void *Write(const void *source, size_t writeBytes) { return EsBufferWrite(this, source, writeBytes); }
#endif
#define ES_POSIX_SYSCALL_GET_POSIX_FD_PATH (0x10000)
#define DESKTOP_MESSAGE_SIZE_LIMIT (0x4000)
#define ES_THEME_CURSORS_WIDTH (264)
#define ES_THEME_CURSORS_HEIGHT (128)
/* Messages sent from Kernel to Desktop: */
#define ES_MSG_EMBEDDED_WINDOW_DESTROYED ((EsMessageType) (ES_MSG_SYSTEM_START + 0x001))
#define ES_MSG_APPLICATION_CRASH ((EsMessageType) (ES_MSG_SYSTEM_START + 0x002))
/* Messages sent from Desktop to application instances: */
#define ES_MSG_TAB_INSPECT_UI ((EsMessageType) (ES_MSG_SYSTEM_START + 0x101))
#define ES_MSG_TAB_CLOSE_REQUEST ((EsMessageType) (ES_MSG_SYSTEM_START + 0x102))
#define ES_MSG_INSTANCE_SAVE_RESPONSE ((EsMessageType) (ES_MSG_SYSTEM_START + 0x103)) /* Sent by Desktop after an application requested to save its document. */
#define ES_MSG_INSTANCE_DOCUMENT_RENAMED ((EsMessageType) (ES_MSG_SYSTEM_START + 0x104))
#define ES_MSG_INSTANCE_DOCUMENT_UPDATED ((EsMessageType) (ES_MSG_SYSTEM_START + 0x105))
#define ES_MSG_INSTANCE_RENAME_RESPONSE ((EsMessageType) (ES_MSG_SYSTEM_START + 0x107))
/* Misc messages: */
#define ES_MSG_EYEDROP_REPORT ((EsMessageType) (ES_MSG_SYSTEM_START + 0x201))
#define ES_MSG_TIMER ((EsMessageType) (ES_MSG_SYSTEM_START + 0x202))
#define ES_MSG_PING ((EsMessageType) (ES_MSG_SYSTEM_START + 0x203)) /* Sent by Desktop to check processes are processing messages. */
#define ES_MSG_WAKEUP ((EsMessageType) (ES_MSG_SYSTEM_START + 0x204)) /* Sent to wakeup the message thread, so that it can process locally posted messages. */
#define ES_MSG_INSTANCE_OPEN_DELAYED ((EsMessageType) (ES_MSG_SYSTEM_START + 0x205))
#define ES_MSG_INSTANCE_SAVE_COMPLETE_DELAYED ((EsMessageType) (ES_MSG_SYSTEM_START + 0x206))
#endif
/* --------- CRT function macros: */
#ifdef ES_CRT_WITHOUT_PREFIX
#define abs EsCRTabs
#define acosf EsCRTacosf
#define asinf EsCRTasinf
#define assert EsCRTassert
#define atan2 EsCRTatan2
#define atan2f EsCRTatan2f
#define atanf EsCRTatanf
#define atod EsCRTatod
#define atof EsCRTatof
#define atoi EsCRTatoi
#define bsearch EsCRTbsearch
#define calloc EsCRTcalloc
#define cbrt EsCRTcbrt
#define cbrtf EsCRTcbrtf
#define ceil EsCRTceil
#define ceilf EsCRTceilf
#define cos EsCRTcos
#define cosf EsCRTcosf
#define exp EsCRTexp
#define expf EsCRTexpf
#define exp2 EsCRTexp2
#define exp2f EsCRTexp2f
#define fabs EsCRTfabs
#define fabsf EsCRTfabsf
#define floor EsCRTfloor
#define floorf EsCRTfloorf
#define fmod EsCRTfmod
#define fmodf EsCRTfmodf
#define free EsCRTfree
#define getenv EsCRTgetenv
#define isalpha EsCRTisalpha
#define isdigit EsCRTisdigit
#define isnanf EsCRTisnanf
#define isspace EsCRTisspace
#define isupper EsCRTisupper
#define isxdigit EsCRTisxdigit
#define malloc EsCRTmalloc
#define memchr EsCRTmemchr
#define memcmp EsCRTmemcmp
#define memcpy EsCRTmemcpy
#define memmove EsCRTmemmove
#define memset EsCRTmemset
#define pow EsCRTpow
#define powf EsCRTpowf
#define qsort EsCRTqsort
#define rand EsCRTrand
#define realloc EsCRTrealloc
#define sin EsCRTsin
#define sinf EsCRTsinf
#define snprintf EsCRTsnprintf
#define sprintf EsCRTsprintf
#define sqrt EsCRTsqrt
#define sqrtf EsCRTsqrtf
#define strcat EsCRTstrcat
#define strchr EsCRTstrchr
#define strcmp EsCRTstrcmp
#define strcpy EsCRTstrcpy
#define strdup EsCRTstrdup
#define strerror EsCRTstrerror
#define strlen EsCRTstrlen
#define strncmp EsCRTstrncmp
#define strncpy EsCRTstrncpy
#define strnlen EsCRTstrnlen
#define strstr EsCRTstrstr
#define strtod EsCRTstrtod
#define strtof EsCRTstrtof
#define strtol EsCRTstrtol
#define strtoul EsCRTstrtoul
#define tolower EsCRTtolower
#define vsnprintf EsCRTvsnprintf
#endif