1016 lines
39 KiB
Text
1016 lines
39 KiB
Text
// Mini memory editor for Dear ImGui (to embed in your game/tools)
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// Get latest version at http://www.github.com/ocornut/imgui_club
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// Licensed under The MIT License (MIT)
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// Right-click anywhere to access the Options menu!
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// You can adjust the keyboard repeat delay/rate in ImGuiIO.
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// The code assume a mono-space font for simplicity!
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// If you don't use the default font, use ImGui::PushFont()/PopFont() to switch
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// to a mono-space font before calling this.
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//
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// Usage:
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// // Create a window and draw memory editor inside it:
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// static MemoryEditor mem_edit_1;
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// static char data[0x10000];
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// size_t data_size = 0x10000;
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// mem_edit_1.DrawWindow("Memory Editor", data, data_size);
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//
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// Usage:
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// // If you already have a window, use DrawContents() instead:
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// static MemoryEditor mem_edit_2;
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// ImGui::Begin("MyWindow")
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// mem_edit_2.DrawContents(this, sizeof(*this), (size_t)this);
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// ImGui::End();
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//
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// Changelog:
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// - v0.10: initial version
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// - v0.23 (2017/08/17): added to github. fixed right-arrow triggering a byte
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// write.
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// - v0.24 (2018/06/02): changed DragInt("Rows" to use a %d data format (which
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// is desirable since imgui 1.61).
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// - v0.25 (2018/07/11): fixed wording: all occurrences of "Rows" renamed to
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// "Columns".
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// - v0.26 (2018/08/02): fixed clicking on hex region
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// - v0.30 (2018/08/02): added data preview for common data types
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// - v0.31 (2018/10/10): added OptUpperCaseHex option to select lower/upper
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// casing display [@samhocevar]
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// - v0.32 (2018/10/10): changed signatures to use void* instead of unsigned
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// char*
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// - v0.33 (2018/10/10): added OptShowOptions option to hide all the interactive
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// option setting.
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// - v0.34 (2019/05/07): binary preview now applies endianness setting
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// [@nicolasnoble]
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// - v0.35 (2020/01/29): using ImGuiDataType available since Dear ImGui 1.69.
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// - v0.36 (2020/05/05): minor tweaks, minor refactor.
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// - v0.40 (2020/10/04): fix misuse of ImGuiListClipper API, broke with Dear
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// ImGui 1.79. made cursor position appears on left-side of edit box. option
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// popup appears on mouse release. fix MSVC warnings where
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// _CRT_SECURE_NO_WARNINGS wasn't working in recent versions.
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// - v0.41 (2020/10/05): fix when using with keyboard/gamepad navigation
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// enabled.
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// - v0.42 (2020/10/14): fix for . character in ASCII view always being greyed
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// out.
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// - v0.43 (2021/03/12): added OptFooterExtraHeight to allow for custom drawing
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// at the bottom of the editor [@leiradel]
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// - v0.44 (2021/03/12): use ImGuiInputTextFlags_AlwaysOverwrite in 1.82 + fix
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// hardcoded width.
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// - v0.50 (2021/11/12): various fixes for recent dear imgui versions (fixed
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// misuse of clipper, relying on SetKeyboardFocusHere() handling scrolling
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// from 1.85). added default size.
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// - v0.51 (2024/02/22): fix for layout change in 1.89 when using
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// IMGUI_DISABLE_OBSOLETE_FUNCTIONS. (#34)
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// - v0.52 (2024/03/08): removed unnecessary GetKeyIndex() calls, they are a
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// no-op since 1.87.
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// - v0.53 (2024/05/27): fixed right-click popup from not appearing when using
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// DrawContents(). warning fixes. (#35)
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// - v0.54 (2024/07/29): allow ReadOnly mode to still select and preview data.
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// (#46) [@DeltaGW2])
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// - v0.55 (2024/08/19): added BgColorFn to allow setting background colors
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// independently from highlighted selection. (#27) [@StrikerX3]
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// added MouseHoveredAddr public readable field. (#47,
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// #27) [@StrikerX3] fixed a data preview crash
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// with 1.91.0 WIP. fixed contiguous highlight color when
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// using data preview. *BREAKING* added UserData field
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// passed to all optional function handlers: ReadFn,
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// WriteFn, HighlightFn, BgColorFn. (#50) [@silverweed]
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// - v0.56 (2024/11/04): fixed MouseHovered, MouseHoveredAddr not being set when
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// hovering a byte being edited. (#54)
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// - v0.57 (2025/03/26): fixed warnings. using ImGui's ImSXX/ImUXX types instead
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// of e.g. int32_t/uint32_t. (#56)
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// - v0.58 (2025/03/31): fixed extraneous footer spacing (added in 0.51)
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// breaking vertical auto-resize. (#53)
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// - v0.59 (2025/04/08): fixed GotoAddrAndHighlight() not working if
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// OptShowOptions is disabled.
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//
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// TODO:
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// - This is generally old/crappy code, it should work but isn't very good.. to
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// be rewritten some day.
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// - PageUp/PageDown are not supported because we use _NoNav. This is a good
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// test scenario for working out idioms of how to mix natural nav and our own...
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// - Arrows are being sent to the InputText() about to disappear which for
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// LeftArrow makes the text cursor appear at position 1 for one frame.
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// - Using InputText() is awkward and maybe overkill here, consider implementing
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// something custom.
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#pragma once
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#include <stdint.h> // uint8_t, etc.
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#include <stdio.h> // sprintf, scanf
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#if defined(_MSC_VER) && !defined(snprintf)
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#define ImSnprintf _snprintf
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#else
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#define ImSnprintf snprintf
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#endif
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#if defined(_MSC_VER) && !defined(__clang__)
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#define _PRISizeT "I"
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#else
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#define _PRISizeT "z"
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#endif
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#if defined(_MSC_VER) || defined(_UCRT)
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#pragma warning(push)
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#pragma warning(disable : 4996) // warning C4996: 'sprintf': This function or
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// variable may be unsafe.
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#endif
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struct MemoryEditor {
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enum DataFormat {
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DataFormat_Bin = 0,
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DataFormat_Dec = 1,
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DataFormat_Hex = 2,
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DataFormat_COUNT
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};
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// Settings
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bool Open; // = true // set to false when DrawWindow() was closed. ignore if
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// not using DrawWindow().
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bool ReadOnly; // = false // disable any editing.
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int Cols; // = 16 // number of columns to display.
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bool OptShowOptions; // = true // display options button/context menu. when
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// disabled, options will be locked unless you provide
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// your own UI for them.
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bool OptShowDataPreview; // = false // display a footer previewing the
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// decimal/binary/hex/float representation of the
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// currently selected bytes.
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bool OptShowHexII; // = false // display values in HexII representation
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// instead of regular hexadecimal: hide null/zero bytes,
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// ascii values as ".X".
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bool OptShowAscii; // = true // display ASCII representation on the right
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// side.
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bool OptGreyOutZeroes; // = true // display null/zero bytes using the
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// TextDisabled color.
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bool OptUpperCaseHex; // = true // display hexadecimal values as "FF"
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// instead of "ff".
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int OptMidColsCount; // = 8 // set to 0 to disable extra spacing between
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// every mid-cols.
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int OptAddrDigitsCount; // = 0 // number of addr digits to display
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// (default calculated based on maximum displayed
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// addr).
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float OptFooterExtraHeight; // = 0 // space to reserve at the bottom of
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// the widget to add custom widgets
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ImU32 HighlightColor; // // background color of highlighted bytes.
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// Function handlers
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ImU8 (*ReadFn)(
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const ImU8 *mem, size_t off,
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void *user_data); // = 0 // optional handler to read bytes.
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void (*WriteFn)(
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ImU8 *mem, size_t off, ImU8 d,
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void *user_data); // = 0 // optional handler to write bytes.
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bool (*HighlightFn)(
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const ImU8 *mem, size_t off,
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void *user_data); // = 0 // optional handler to return Highlight
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// property (to support non-contiguous highlighting).
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ImU32 (*BgColorFn)(
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const ImU8 *mem, size_t off,
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void *user_data); // = 0 // optional handler to return custom
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// background color of individual bytes.
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void *UserData; // = NULL // user data forwarded to the function handlers
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// Public read-only data
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bool MouseHovered; // set when mouse is hovering a value.
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size_t MouseHoveredAddr; // the address currently being hovered if
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// MouseHovered is set.
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// [Internal State]
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bool ContentsWidthChanged;
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size_t DataPreviewAddr;
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size_t DataEditingAddr;
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bool DataEditingTakeFocus;
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char DataInputBuf[32];
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char AddrInputBuf[32];
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size_t GotoAddr;
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size_t HighlightMin, HighlightMax;
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int PreviewEndianness;
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ImGuiDataType PreviewDataType;
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MemoryEditor() {
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// Settings
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Open = true;
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ReadOnly = false;
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Cols = 16;
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OptShowOptions = true;
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OptShowDataPreview = false;
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OptShowHexII = false;
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OptShowAscii = true;
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OptGreyOutZeroes = true;
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OptUpperCaseHex = true;
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OptMidColsCount = 8;
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OptAddrDigitsCount = 0;
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OptFooterExtraHeight = 0.0f;
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HighlightColor = IM_COL32(255, 255, 255, 50);
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ReadFn = nullptr;
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WriteFn = nullptr;
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HighlightFn = nullptr;
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BgColorFn = nullptr;
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UserData = nullptr;
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// State/Internals
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ContentsWidthChanged = false;
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DataPreviewAddr = DataEditingAddr = (size_t)-1;
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DataEditingTakeFocus = false;
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memset(DataInputBuf, 0, sizeof(DataInputBuf));
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memset(AddrInputBuf, 0, sizeof(AddrInputBuf));
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GotoAddr = (size_t)-1;
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MouseHovered = false;
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MouseHoveredAddr = 0;
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HighlightMin = HighlightMax = (size_t)-1;
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PreviewEndianness = 0;
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PreviewDataType = ImGuiDataType_S32;
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}
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void GotoAddrAndHighlight(size_t addr_min, size_t addr_max) {
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GotoAddr = addr_min;
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HighlightMin = addr_min;
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HighlightMax = addr_max;
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}
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struct Sizes {
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int AddrDigitsCount; // Number of digits required to represent maximum
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// address.
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float LineHeight; // Height of each line (no spacing).
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float GlyphWidth; // Glyph width (assume mono-space).
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float HexCellWidth; // Width of a hex edit cell ~2.5f * GlypHWidth.
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float SpacingBetweenMidCols; // Spacing between each columns section
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// (OptMidColsCount).
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float OffsetHexMinX;
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float OffsetHexMaxX;
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float OffsetAsciiMinX;
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float OffsetAsciiMaxX;
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float WindowWidth; // Ideal window width.
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Sizes() { memset(this, 0, sizeof(*this)); }
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};
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void CalcSizes(Sizes &s, size_t mem_size, size_t base_display_addr) {
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ImGuiStyle &style = ImGui::GetStyle();
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s.AddrDigitsCount = OptAddrDigitsCount;
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if (s.AddrDigitsCount == 0)
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for (size_t n = base_display_addr + mem_size - 1; n > 0; n >>= 4)
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s.AddrDigitsCount++;
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s.LineHeight = ImGui::GetTextLineHeight();
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s.GlyphWidth =
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ImGui::CalcTextSize("F").x + 1; // We assume the font is mono-space
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s.HexCellWidth =
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(float)(int)(s.GlyphWidth *
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2.5f); // "FF " we include trailing space in the width to
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// easily catch clicks everywhere
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s.SpacingBetweenMidCols =
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(float)(int)(s.HexCellWidth * 0.25f); // Every OptMidColsCount columns
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// we add a bit of extra spacing
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s.OffsetHexMinX = (s.AddrDigitsCount + 2) * s.GlyphWidth;
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s.OffsetHexMaxX = s.OffsetHexMinX + (s.HexCellWidth * Cols);
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s.OffsetAsciiMinX = s.OffsetAsciiMaxX = s.OffsetHexMaxX;
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if (OptShowAscii) {
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s.OffsetAsciiMinX = s.OffsetHexMaxX + s.GlyphWidth * 1;
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if (OptMidColsCount > 0)
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s.OffsetAsciiMinX +=
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(float)((Cols + OptMidColsCount - 1) / OptMidColsCount) *
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s.SpacingBetweenMidCols;
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s.OffsetAsciiMaxX = s.OffsetAsciiMinX + Cols * s.GlyphWidth;
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}
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s.WindowWidth = s.OffsetAsciiMaxX + style.ScrollbarSize +
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style.WindowPadding.x * 2 + s.GlyphWidth;
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}
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// Standalone Memory Editor window
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void DrawWindow(const char *title, void *mem_data, size_t mem_size,
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size_t base_display_addr = 0x0000) {
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Sizes s;
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CalcSizes(s, mem_size, base_display_addr);
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ImGui::SetNextWindowSize(ImVec2(s.WindowWidth, s.WindowWidth * 0.60f),
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ImGuiCond_FirstUseEver);
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ImGui::SetNextWindowSizeConstraints(ImVec2(0.0f, 0.0f),
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ImVec2(s.WindowWidth, FLT_MAX));
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Open = true;
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if (ImGui::Begin(title, &Open, ImGuiWindowFlags_NoScrollbar)) {
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DrawContents(mem_data, mem_size, base_display_addr);
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if (ContentsWidthChanged) {
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CalcSizes(s, mem_size, base_display_addr);
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ImGui::SetWindowSize(ImVec2(s.WindowWidth, ImGui::GetWindowSize().y));
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}
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}
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ImGui::End();
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}
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// Memory Editor contents only
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void DrawContents(void *mem_data_void, size_t mem_size,
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size_t base_display_addr = 0x0000) {
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if (Cols < 1)
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Cols = 1;
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ImU8 *mem_data = (ImU8 *)mem_data_void;
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Sizes s;
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CalcSizes(s, mem_size, base_display_addr);
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ImGuiStyle &style = ImGui::GetStyle();
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const ImVec2 contents_pos_start = ImGui::GetCursorScreenPos();
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// We begin into our scrolling region with the 'ImGuiWindowFlags_NoMove' in
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// order to prevent click from moving the window. This is used as a facility
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// since our main click detection code doesn't assign an ActiveId so the
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// click would normally be caught as a window-move.
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const float height_separator = style.ItemSpacing.y;
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float footer_height = OptFooterExtraHeight;
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if (OptShowOptions)
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footer_height +=
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height_separator + ImGui::GetFrameHeightWithSpacing() * 1;
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if (OptShowDataPreview)
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footer_height += height_separator +
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ImGui::GetFrameHeightWithSpacing() * 1 +
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ImGui::GetTextLineHeightWithSpacing() * 3;
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ImGui::BeginChild("##scrolling", ImVec2(-FLT_MIN, -footer_height),
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ImGuiChildFlags_None,
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ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoNav);
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ImDrawList *draw_list = ImGui::GetWindowDrawList();
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ImGui::PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(0, 0));
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ImGui::PushStyleVar(ImGuiStyleVar_ItemSpacing, ImVec2(0, 0));
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// We are not really using the clipper API correctly here, because we rely
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// on visible_start_addr/visible_end_addr for our scrolling function.
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const ImVec2 avail_size = ImGui::GetContentRegionAvail();
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const int line_total_count = (int)((mem_size + Cols - 1) / Cols);
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ImGuiListClipper clipper;
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clipper.Begin(line_total_count, s.LineHeight);
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bool data_next = false;
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if (DataEditingAddr >= mem_size)
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DataEditingAddr = (size_t)-1;
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if (DataPreviewAddr >= mem_size)
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DataPreviewAddr = (size_t)-1;
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size_t preview_data_type_size =
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OptShowDataPreview ? DataTypeGetSize(PreviewDataType) : 0;
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size_t data_editing_addr_next = (size_t)-1;
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if (DataEditingAddr != (size_t)-1) {
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// Move cursor but only apply on next frame so scrolling with be
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// synchronized (because currently we can't change the scrolling while the
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// window is being rendered)
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if (ImGui::IsKeyPressed(ImGuiKey_UpArrow) &&
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(ptrdiff_t)DataEditingAddr >= (ptrdiff_t)Cols) {
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data_editing_addr_next = DataEditingAddr - Cols;
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} else if (ImGui::IsKeyPressed(ImGuiKey_DownArrow) &&
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(ptrdiff_t)DataEditingAddr < (ptrdiff_t)mem_size - Cols) {
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data_editing_addr_next = DataEditingAddr + Cols;
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} else if (ImGui::IsKeyPressed(ImGuiKey_LeftArrow) &&
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(ptrdiff_t)DataEditingAddr > (ptrdiff_t)0) {
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data_editing_addr_next = DataEditingAddr - 1;
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} else if (ImGui::IsKeyPressed(ImGuiKey_RightArrow) &&
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(ptrdiff_t)DataEditingAddr < (ptrdiff_t)mem_size - 1) {
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data_editing_addr_next = DataEditingAddr + 1;
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}
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}
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// Draw vertical separator
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ImVec2 window_pos = ImGui::GetWindowPos();
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if (OptShowAscii)
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draw_list->AddLine(
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ImVec2(window_pos.x + s.OffsetAsciiMinX - s.GlyphWidth, window_pos.y),
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ImVec2(window_pos.x + s.OffsetAsciiMinX - s.GlyphWidth,
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window_pos.y + 9999),
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ImGui::GetColorU32(ImGuiCol_Border));
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const ImU32 color_text = ImGui::GetColorU32(ImGuiCol_Text);
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const ImU32 color_disabled = OptGreyOutZeroes
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? ImGui::GetColorU32(ImGuiCol_TextDisabled)
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: color_text;
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const char *format_address =
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OptUpperCaseHex ? "%0*" _PRISizeT "X: " : "%0*" _PRISizeT "x: ";
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const char *format_data =
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OptUpperCaseHex ? "%0*" _PRISizeT "X" : "%0*" _PRISizeT "x";
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const char *format_byte = OptUpperCaseHex ? "%02X" : "%02x";
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const char *format_byte_space = OptUpperCaseHex ? "%02X " : "%02x ";
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MouseHovered = false;
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MouseHoveredAddr = 0;
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while (clipper.Step())
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for (int line_i = clipper.DisplayStart; line_i < clipper.DisplayEnd;
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line_i++) // display only visible lines
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{
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size_t addr = (size_t)line_i * Cols;
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ImGui::Text(format_address, s.AddrDigitsCount,
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base_display_addr + addr);
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// Draw Hexadecimal
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for (int n = 0; n < Cols && addr < mem_size; n++, addr++) {
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float byte_pos_x = s.OffsetHexMinX + s.HexCellWidth * n;
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if (OptMidColsCount > 0)
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byte_pos_x +=
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(float)(n / OptMidColsCount) * s.SpacingBetweenMidCols;
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ImGui::SameLine(byte_pos_x);
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// Draw highlight or custom background color
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const bool is_highlight_from_user_range =
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(addr >= HighlightMin && addr < HighlightMax);
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const bool is_highlight_from_user_func =
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(HighlightFn && HighlightFn(mem_data, addr, UserData));
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const bool is_highlight_from_preview =
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(addr >= DataPreviewAddr &&
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addr < DataPreviewAddr + preview_data_type_size);
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ImU32 bg_color = 0;
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bool is_next_byte_highlighted = false;
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if (is_highlight_from_user_range || is_highlight_from_user_func ||
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is_highlight_from_preview) {
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is_next_byte_highlighted =
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(addr + 1 < mem_size) &&
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((HighlightMax != (size_t)-1 && addr + 1 < HighlightMax) ||
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(HighlightFn && HighlightFn(mem_data, addr + 1, UserData)) ||
|
|
(addr + 1 < DataPreviewAddr + preview_data_type_size));
|
|
bg_color = HighlightColor;
|
|
} else if (BgColorFn != nullptr) {
|
|
is_next_byte_highlighted =
|
|
(addr + 1 < mem_size) &&
|
|
((BgColorFn(mem_data, addr + 1, UserData) & IM_COL32_A_MASK) !=
|
|
0);
|
|
bg_color = BgColorFn(mem_data, addr, UserData);
|
|
}
|
|
if (bg_color != 0) {
|
|
float bg_width = s.GlyphWidth * 2;
|
|
if (is_next_byte_highlighted || (n + 1 == Cols)) {
|
|
bg_width = s.HexCellWidth;
|
|
if (OptMidColsCount > 0 && n > 0 && (n + 1) < Cols &&
|
|
((n + 1) % OptMidColsCount) == 0)
|
|
bg_width += s.SpacingBetweenMidCols;
|
|
}
|
|
ImVec2 pos = ImGui::GetCursorScreenPos();
|
|
draw_list->AddRectFilled(
|
|
pos, ImVec2(pos.x + bg_width, pos.y + s.LineHeight), bg_color);
|
|
}
|
|
|
|
if (DataEditingAddr == addr) {
|
|
// Display text input on current byte
|
|
bool data_write = false;
|
|
ImGui::PushID((void *)addr);
|
|
if (DataEditingTakeFocus) {
|
|
ImGui::SetKeyboardFocusHere(0);
|
|
ImSnprintf(AddrInputBuf, 32, format_data, s.AddrDigitsCount,
|
|
base_display_addr + addr);
|
|
ImSnprintf(DataInputBuf, 32, format_byte,
|
|
ReadFn ? ReadFn(mem_data, addr, UserData)
|
|
: mem_data[addr]);
|
|
}
|
|
struct InputTextUserData {
|
|
// FIXME: We should have a way to retrieve the text edit cursor
|
|
// position more easily in the API, this is rather tedious. This
|
|
// is such a ugly mess we may be better off not using InputText()
|
|
// at all here.
|
|
static int Callback(ImGuiInputTextCallbackData *data) {
|
|
InputTextUserData *user_data =
|
|
(InputTextUserData *)data->UserData;
|
|
if (!data->HasSelection())
|
|
user_data->CursorPos = data->CursorPos;
|
|
#if IMGUI_VERSION_NUM < 19102
|
|
if (data->Flags & ImGuiInputTextFlags_ReadOnly)
|
|
return 0;
|
|
#endif
|
|
if (data->SelectionStart == 0 &&
|
|
data->SelectionEnd == data->BufTextLen) {
|
|
// When not editing a byte, always refresh its InputText
|
|
// content pulled from underlying memory data (this is a bit
|
|
// tricky, since InputText technically "owns" the master copy
|
|
// of the buffer we edit it in there)
|
|
data->DeleteChars(0, data->BufTextLen);
|
|
data->InsertChars(0, user_data->CurrentBufOverwrite);
|
|
data->SelectionStart = 0;
|
|
data->SelectionEnd = 2;
|
|
data->CursorPos = 0;
|
|
}
|
|
return 0;
|
|
}
|
|
char CurrentBufOverwrite[3]; // Input
|
|
int CursorPos; // Output
|
|
};
|
|
InputTextUserData input_text_user_data;
|
|
input_text_user_data.CursorPos = -1;
|
|
ImSnprintf(input_text_user_data.CurrentBufOverwrite, 3, format_byte,
|
|
ReadFn ? ReadFn(mem_data, addr, UserData)
|
|
: mem_data[addr]);
|
|
ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal |
|
|
ImGuiInputTextFlags_EnterReturnsTrue |
|
|
ImGuiInputTextFlags_AutoSelectAll |
|
|
ImGuiInputTextFlags_NoHorizontalScroll |
|
|
ImGuiInputTextFlags_CallbackAlways;
|
|
if (ReadOnly)
|
|
flags |= ImGuiInputTextFlags_ReadOnly;
|
|
flags |=
|
|
ImGuiInputTextFlags_AlwaysOverwrite; // was
|
|
// ImGuiInputTextFlags_AlwaysInsertMode
|
|
ImGui::SetNextItemWidth(s.GlyphWidth * 2);
|
|
if (ImGui::InputText(
|
|
"##data", DataInputBuf, IM_ARRAYSIZE(DataInputBuf), flags,
|
|
InputTextUserData::Callback, &input_text_user_data))
|
|
data_write = data_next = true;
|
|
else if (!DataEditingTakeFocus && !ImGui::IsItemActive())
|
|
DataEditingAddr = data_editing_addr_next = (size_t)-1;
|
|
DataEditingTakeFocus = false;
|
|
if (input_text_user_data.CursorPos >= 2)
|
|
data_write = data_next = true;
|
|
if (data_editing_addr_next != (size_t)-1)
|
|
data_write = data_next = false;
|
|
unsigned int data_input_value = 0;
|
|
if (!ReadOnly && data_write &&
|
|
sscanf(DataInputBuf, "%X", &data_input_value) == 1) {
|
|
if (WriteFn)
|
|
WriteFn(mem_data, addr, (ImU8)data_input_value, UserData);
|
|
else
|
|
mem_data[addr] = (ImU8)data_input_value;
|
|
}
|
|
if (ImGui::IsItemHovered()) {
|
|
MouseHovered = true;
|
|
MouseHoveredAddr = addr;
|
|
}
|
|
ImGui::PopID();
|
|
} else {
|
|
// NB: The trailing space is not visible but ensure there's no gap
|
|
// that the mouse cannot click on.
|
|
ImU8 b = ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr];
|
|
|
|
if (OptShowHexII) {
|
|
if ((b >= 32 && b < 128))
|
|
ImGui::Text(".%c ", b);
|
|
else if (b == 0xFF && OptGreyOutZeroes)
|
|
ImGui::TextDisabled("## ");
|
|
else if (b == 0x00)
|
|
ImGui::Text(" ");
|
|
else
|
|
ImGui::Text(format_byte_space, b);
|
|
} else {
|
|
if (b == 0 && OptGreyOutZeroes)
|
|
ImGui::TextDisabled("00 ");
|
|
else
|
|
ImGui::Text(format_byte_space, b);
|
|
}
|
|
if (ImGui::IsItemHovered()) {
|
|
MouseHovered = true;
|
|
MouseHoveredAddr = addr;
|
|
if (ImGui::IsMouseClicked(0)) {
|
|
DataEditingTakeFocus = true;
|
|
data_editing_addr_next = addr;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if (OptShowAscii) {
|
|
// Draw ASCII values
|
|
ImGui::SameLine(s.OffsetAsciiMinX);
|
|
ImVec2 pos = ImGui::GetCursorScreenPos();
|
|
addr = (size_t)line_i * Cols;
|
|
|
|
const float mouse_off_x = ImGui::GetIO().MousePos.x - pos.x;
|
|
const size_t mouse_addr =
|
|
(mouse_off_x >= 0.0f &&
|
|
mouse_off_x < s.OffsetAsciiMaxX - s.OffsetAsciiMinX)
|
|
? addr + (size_t)(mouse_off_x / s.GlyphWidth)
|
|
: (size_t)-1;
|
|
|
|
ImGui::PushID(line_i);
|
|
if (ImGui::InvisibleButton(
|
|
"ascii", ImVec2(s.OffsetAsciiMaxX - s.OffsetAsciiMinX,
|
|
s.LineHeight))) {
|
|
DataEditingAddr = DataPreviewAddr = mouse_addr;
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
if (ImGui::IsItemHovered()) {
|
|
MouseHovered = true;
|
|
MouseHoveredAddr = mouse_addr;
|
|
}
|
|
ImGui::PopID();
|
|
for (int n = 0; n < Cols && addr < mem_size; n++, addr++) {
|
|
if (addr == DataEditingAddr) {
|
|
draw_list->AddRectFilled(
|
|
pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight),
|
|
ImGui::GetColorU32(ImGuiCol_FrameBg));
|
|
draw_list->AddRectFilled(
|
|
pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight),
|
|
ImGui::GetColorU32(ImGuiCol_TextSelectedBg));
|
|
} else if (BgColorFn) {
|
|
draw_list->AddRectFilled(
|
|
pos, ImVec2(pos.x + s.GlyphWidth, pos.y + s.LineHeight),
|
|
BgColorFn(mem_data, addr, UserData));
|
|
}
|
|
unsigned char c =
|
|
ReadFn ? ReadFn(mem_data, addr, UserData) : mem_data[addr];
|
|
char display_c = (c < 32 || c >= 128) ? '.' : c;
|
|
draw_list->AddText(pos,
|
|
(display_c == c) ? color_text : color_disabled,
|
|
&display_c, &display_c + 1);
|
|
pos.x += s.GlyphWidth;
|
|
}
|
|
}
|
|
}
|
|
ImGui::PopStyleVar(2);
|
|
const float child_width = ImGui::GetWindowSize().x;
|
|
ImGui::EndChild();
|
|
|
|
// Notify the main window of our ideal child content size (FIXME: we are
|
|
// missing an API to get the contents size from the child)
|
|
ImVec2 backup_pos = ImGui::GetCursorScreenPos();
|
|
ImGui::SetCursorPosX(s.WindowWidth);
|
|
ImGui::Dummy(ImVec2(0.0f, 0.0f));
|
|
ImGui::SetCursorScreenPos(backup_pos);
|
|
|
|
if (data_next && DataEditingAddr + 1 < mem_size) {
|
|
DataEditingAddr = DataPreviewAddr = DataEditingAddr + 1;
|
|
DataEditingTakeFocus = true;
|
|
} else if (data_editing_addr_next != (size_t)-1) {
|
|
DataEditingAddr = DataPreviewAddr = data_editing_addr_next;
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
|
|
const bool lock_show_data_preview = OptShowDataPreview;
|
|
if (OptShowOptions) {
|
|
ImGui::Separator();
|
|
DrawOptionsLine(s, mem_data, mem_size, base_display_addr);
|
|
}
|
|
|
|
if (lock_show_data_preview) {
|
|
ImGui::Separator();
|
|
DrawPreviewLine(s, mem_data, mem_size, base_display_addr);
|
|
}
|
|
|
|
if (GotoAddr != (size_t)-1) {
|
|
if (GotoAddr < mem_size) {
|
|
ImGui::BeginChild("##scrolling");
|
|
ImGui::SetScrollY((GotoAddr / Cols) * ImGui::GetTextLineHeight() -
|
|
avail_size.y * 0.5f);
|
|
ImGui::EndChild();
|
|
DataEditingAddr = DataPreviewAddr = GotoAddr;
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
GotoAddr = (size_t)-1;
|
|
}
|
|
|
|
const ImVec2 contents_pos_end(contents_pos_start.x + child_width,
|
|
ImGui::GetCursorScreenPos().y);
|
|
// ImGui::GetForegroundDrawList()->AddRect(contents_pos_start,
|
|
// contents_pos_end, IM_COL32(255, 0, 0, 255));
|
|
if (OptShowOptions)
|
|
if (ImGui::IsMouseHoveringRect(contents_pos_start, contents_pos_end))
|
|
if (ImGui::IsWindowHovered(ImGuiHoveredFlags_ChildWindows) &&
|
|
ImGui::IsMouseReleased(ImGuiMouseButton_Right))
|
|
ImGui::OpenPopup("OptionsPopup");
|
|
|
|
if (ImGui::BeginPopup("OptionsPopup")) {
|
|
ImGui::SetNextItemWidth(s.GlyphWidth * 7 + style.FramePadding.x * 2.0f);
|
|
if (ImGui::DragInt("##cols", &Cols, 0.2f, 4, 32, "%d cols")) {
|
|
ContentsWidthChanged = true;
|
|
if (Cols < 1)
|
|
Cols = 1;
|
|
}
|
|
ImGui::Checkbox("Show Data Preview", &OptShowDataPreview);
|
|
ImGui::Checkbox("Show HexII", &OptShowHexII);
|
|
if (ImGui::Checkbox("Show Ascii", &OptShowAscii)) {
|
|
ContentsWidthChanged = true;
|
|
}
|
|
ImGui::Checkbox("Grey out zeroes", &OptGreyOutZeroes);
|
|
ImGui::Checkbox("Uppercase Hex", &OptUpperCaseHex);
|
|
|
|
ImGui::EndPopup();
|
|
}
|
|
}
|
|
|
|
void DrawOptionsLine(const Sizes &s, void *mem_data, size_t mem_size,
|
|
size_t base_display_addr) {
|
|
IM_UNUSED(mem_data);
|
|
ImGuiStyle &style = ImGui::GetStyle();
|
|
const char *format_range =
|
|
OptUpperCaseHex ? "Range %0*" _PRISizeT "X..%0*" _PRISizeT "X"
|
|
: "Range %0*" _PRISizeT "x..%0*" _PRISizeT "x";
|
|
|
|
// Options menu
|
|
if (ImGui::Button("Options"))
|
|
ImGui::OpenPopup("OptionsPopup");
|
|
|
|
ImGui::SameLine();
|
|
ImGui::Text(format_range, s.AddrDigitsCount, base_display_addr,
|
|
s.AddrDigitsCount, base_display_addr + mem_size - 1);
|
|
ImGui::SameLine();
|
|
ImGui::SetNextItemWidth((s.AddrDigitsCount + 1) * s.GlyphWidth +
|
|
style.FramePadding.x * 2.0f);
|
|
if (ImGui::InputText("##addr", AddrInputBuf, IM_ARRAYSIZE(AddrInputBuf),
|
|
ImGuiInputTextFlags_CharsHexadecimal |
|
|
ImGuiInputTextFlags_EnterReturnsTrue)) {
|
|
size_t goto_addr;
|
|
if (sscanf(AddrInputBuf, "%" _PRISizeT "X", &goto_addr) == 1) {
|
|
GotoAddr = goto_addr - base_display_addr;
|
|
HighlightMin = HighlightMax = (size_t)-1;
|
|
}
|
|
}
|
|
|
|
// if (MouseHovered)
|
|
//{
|
|
// ImGui::SameLine();
|
|
// ImGui::Text("Hovered: %p", MouseHoveredAddr);
|
|
// }
|
|
}
|
|
|
|
void DrawPreviewLine(const Sizes &s, void *mem_data_void, size_t mem_size,
|
|
size_t base_display_addr) {
|
|
IM_UNUSED(base_display_addr);
|
|
ImU8 *mem_data = (ImU8 *)mem_data_void;
|
|
ImGuiStyle &style = ImGui::GetStyle();
|
|
ImGui::AlignTextToFramePadding();
|
|
ImGui::Text("Preview as:");
|
|
ImGui::SameLine();
|
|
ImGui::SetNextItemWidth((s.GlyphWidth * 10.0f) +
|
|
style.FramePadding.x * 2.0f +
|
|
style.ItemInnerSpacing.x);
|
|
|
|
static const ImGuiDataType supported_data_types[] = {
|
|
ImGuiDataType_S8, ImGuiDataType_U8, ImGuiDataType_S16,
|
|
ImGuiDataType_U16, ImGuiDataType_S32, ImGuiDataType_U32,
|
|
ImGuiDataType_S64, ImGuiDataType_U64, ImGuiDataType_Float,
|
|
ImGuiDataType_Double};
|
|
if (ImGui::BeginCombo("##combo_type", DataTypeGetDesc(PreviewDataType),
|
|
ImGuiComboFlags_HeightLargest)) {
|
|
for (int n = 0; n < IM_ARRAYSIZE(supported_data_types); n++) {
|
|
ImGuiDataType data_type = supported_data_types[n];
|
|
if (ImGui::Selectable(DataTypeGetDesc(data_type),
|
|
PreviewDataType == data_type))
|
|
PreviewDataType = data_type;
|
|
}
|
|
ImGui::EndCombo();
|
|
}
|
|
ImGui::SameLine();
|
|
ImGui::SetNextItemWidth((s.GlyphWidth * 6.0f) +
|
|
style.FramePadding.x * 2.0f +
|
|
style.ItemInnerSpacing.x);
|
|
ImGui::Combo("##combo_endianness", &PreviewEndianness, "LE\0BE\0\0");
|
|
|
|
char buf[128] = "";
|
|
float x = s.GlyphWidth * 6.0f;
|
|
bool has_value = DataPreviewAddr != (size_t)-1;
|
|
if (has_value)
|
|
DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType,
|
|
DataFormat_Dec, buf, (size_t)IM_ARRAYSIZE(buf));
|
|
ImGui::Text("Dec");
|
|
ImGui::SameLine(x);
|
|
ImGui::TextUnformatted(has_value ? buf : "N/A");
|
|
if (has_value)
|
|
DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType,
|
|
DataFormat_Hex, buf, (size_t)IM_ARRAYSIZE(buf));
|
|
ImGui::Text("Hex");
|
|
ImGui::SameLine(x);
|
|
ImGui::TextUnformatted(has_value ? buf : "N/A");
|
|
if (has_value)
|
|
DrawPreviewData(DataPreviewAddr, mem_data, mem_size, PreviewDataType,
|
|
DataFormat_Bin, buf, (size_t)IM_ARRAYSIZE(buf));
|
|
buf[IM_ARRAYSIZE(buf) - 1] = 0;
|
|
ImGui::Text("Bin");
|
|
ImGui::SameLine(x);
|
|
ImGui::TextUnformatted(has_value ? buf : "N/A");
|
|
}
|
|
|
|
// Utilities for Data Preview (since we don't access imgui_internal.h)
|
|
// FIXME: This technically depends on ImGuiDataType order.
|
|
const char *DataTypeGetDesc(ImGuiDataType data_type) const {
|
|
const char *descs[] = {"Int8", "Uint8", "Int16", "Uint16", "Int32",
|
|
"Uint32", "Int64", "Uint64", "Float", "Double"};
|
|
IM_ASSERT(data_type >= 0 && data_type < IM_ARRAYSIZE(descs));
|
|
return descs[data_type];
|
|
}
|
|
|
|
size_t DataTypeGetSize(ImGuiDataType data_type) const {
|
|
const size_t sizes[] = {
|
|
1, 1, 2, 2, 4, 4, 8, 8, sizeof(float), sizeof(double)};
|
|
IM_ASSERT(data_type >= 0 && data_type < IM_ARRAYSIZE(sizes));
|
|
return sizes[data_type];
|
|
}
|
|
|
|
const char *DataFormatGetDesc(DataFormat data_format) const {
|
|
const char *descs[] = {"Bin", "Dec", "Hex"};
|
|
IM_ASSERT(data_format >= 0 && data_format < DataFormat_COUNT);
|
|
return descs[data_format];
|
|
}
|
|
|
|
bool IsBigEndian() const {
|
|
ImU16 x = 1;
|
|
char c[2];
|
|
memcpy(c, &x, 2);
|
|
return c[0] != 0;
|
|
}
|
|
|
|
static void *EndiannessCopyBigEndian(void *_dst, void *_src, size_t s,
|
|
int is_little_endian) {
|
|
if (is_little_endian) {
|
|
ImU8 *dst = (ImU8 *)_dst;
|
|
ImU8 *src = (ImU8 *)_src + s - 1;
|
|
for (int i = 0, n = (int)s; i < n; ++i)
|
|
memcpy(dst++, src--, 1);
|
|
return _dst;
|
|
} else {
|
|
return memcpy(_dst, _src, s);
|
|
}
|
|
}
|
|
|
|
static void *EndiannessCopyLittleEndian(void *_dst, void *_src, size_t s,
|
|
int is_little_endian) {
|
|
if (is_little_endian) {
|
|
return memcpy(_dst, _src, s);
|
|
} else {
|
|
ImU8 *dst = (ImU8 *)_dst;
|
|
ImU8 *src = (ImU8 *)_src + s - 1;
|
|
for (int i = 0, n = (int)s; i < n; ++i)
|
|
memcpy(dst++, src--, 1);
|
|
return _dst;
|
|
}
|
|
}
|
|
|
|
void *EndiannessCopy(void *dst, void *src, size_t size) const {
|
|
static void *(*fp)(void *, void *, size_t, int) = nullptr;
|
|
if (fp == nullptr)
|
|
fp = IsBigEndian() ? EndiannessCopyBigEndian : EndiannessCopyLittleEndian;
|
|
return fp(dst, src, size, PreviewEndianness);
|
|
}
|
|
|
|
const char *FormatBinary(const ImU8 *buf, int width) const {
|
|
IM_ASSERT(width <= 64);
|
|
size_t out_n = 0;
|
|
static char out_buf[64 + 8 + 1];
|
|
int n = width / 8;
|
|
for (int j = n - 1; j >= 0; --j) {
|
|
for (int i = 0; i < 8; ++i)
|
|
out_buf[out_n++] = (buf[j] & (1 << (7 - i))) ? '1' : '0';
|
|
out_buf[out_n++] = ' ';
|
|
}
|
|
IM_ASSERT(out_n < IM_ARRAYSIZE(out_buf));
|
|
out_buf[out_n] = 0;
|
|
return out_buf;
|
|
}
|
|
|
|
// [Internal]
|
|
void DrawPreviewData(size_t addr, const ImU8 *mem_data, size_t mem_size,
|
|
ImGuiDataType data_type, DataFormat data_format,
|
|
char *out_buf, size_t out_buf_size) const {
|
|
ImU8 buf[8];
|
|
size_t elem_size = DataTypeGetSize(data_type);
|
|
size_t size = addr + elem_size > mem_size ? mem_size - addr : elem_size;
|
|
if (ReadFn)
|
|
for (int i = 0, n = (int)size; i < n; ++i)
|
|
buf[i] = ReadFn(mem_data, addr + i, UserData);
|
|
else
|
|
memcpy(buf, mem_data + addr, size);
|
|
|
|
if (data_format == DataFormat_Bin) {
|
|
ImU8 binbuf[8];
|
|
EndiannessCopy(binbuf, buf, size);
|
|
ImSnprintf(out_buf, out_buf_size, "%s",
|
|
FormatBinary(binbuf, (int)size * 8));
|
|
return;
|
|
}
|
|
|
|
out_buf[0] = 0;
|
|
switch (data_type) {
|
|
case ImGuiDataType_S8: {
|
|
ImS8 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%hhd", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%02x", data & 0xFF);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_U8: {
|
|
ImU8 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%hhu", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%02x", data & 0XFF);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_S16: {
|
|
ImS16 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%hd", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%04x", data & 0xFFFF);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_U16: {
|
|
ImU16 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%hu", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%04x", data & 0xFFFF);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_S32: {
|
|
ImS32 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%d", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%08x", data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_U32: {
|
|
ImU32 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%u", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%08x", data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_S64: {
|
|
ImS64 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%lld", (long long)data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_U64: {
|
|
ImU64 data = 0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%llu", (long long)data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_Float: {
|
|
float data = 0.0f;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%f", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "%a", data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
case ImGuiDataType_Double: {
|
|
double data = 0.0;
|
|
EndiannessCopy(&data, buf, size);
|
|
if (data_format == DataFormat_Dec) {
|
|
ImSnprintf(out_buf, out_buf_size, "%f", data);
|
|
return;
|
|
}
|
|
if (data_format == DataFormat_Hex) {
|
|
ImSnprintf(out_buf, out_buf_size, "%a", data);
|
|
return;
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
case ImGuiDataType_COUNT:
|
|
break;
|
|
} // Switch
|
|
IM_ASSERT(0); // Shouldn't reach
|
|
}
|
|
};
|
|
|
|
#undef _PRISizeT
|
|
#undef ImSnprintf
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning(pop)
|
|
#endif
|