751 lines
35 KiB
C
751 lines
35 KiB
C
// 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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//
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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 to a mono-space font before caling 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 write.
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// - v0.24 (2018/06/02): changed DragInt("Rows" to use a %d data format (which is desirable since imgui 1.61).
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// - v0.25 (2018/07/11): fixed wording: all occurrences of "Rows" renamed to "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 casing display [@samhocevar]
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// - v0.32 (2018/10/10): changed signatures to use void* instead of unsigned char*
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// - v0.33 (2018/10/10): added OptShowOptions option to hide all the interactive option setting.
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// - v0.34 (2019/05/07): binary preview now applies endianness setting [@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 ImGui 1.79. made cursor position appears on left-side of edit box. option popup appears on mouse release. fix MSVC warnings where _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 enabled.
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// - v0.42 (2020/10/14): fix for . character in ASCII view always being greyed out.
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//
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// Todo/Bugs:
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// - This is generally old code, it should work but please don't use this as reference!
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// - Arrows are being sent to the InputText() about to disappear which for 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 something custom.
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#pragma once
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#include <stdio.h> // sprintf, scanf
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#include <stdint.h> // uint8_t, etc.
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#ifdef _MSC_VER
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#define _PRISizeT "I"
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#define ImSnprintf _snprintf
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#else
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#define _PRISizeT "z"
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#define ImSnprintf snprintf
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#endif
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#ifdef _MSC_VER
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#pragma warning (push)
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#pragma warning (disable: 4996) // warning C4996: 'sprintf': This function or variable may be unsafe.
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#endif
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struct MemoryEditor
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{
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enum DataFormat
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{
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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 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 disabled, options will be locked unless you provide your own UI for them.
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bool OptShowDataPreview; // = false // display a footer previewing the decimal/binary/hex/float representation of the currently selected bytes.
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bool OptShowHexII; // = false // display values in HexII representation instead of regular hexadecimal: hide null/zero bytes, ascii values as ".X".
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bool OptShowAscii; // = true // display ASCII representation on the right side.
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bool OptGreyOutZeroes; // = true // display null/zero bytes using the TextDisabled color.
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bool OptUpperCaseHex; // = true // display hexadecimal values as "FF" instead of "ff".
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int OptMidColsCount; // = 8 // set to 0 to disable extra spacing between every mid-cols.
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int OptAddrDigitsCount; // = 0 // number of addr digits to display (default calculated based on maximum displayed addr).
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ImU32 HighlightColor; // // background color of highlighted bytes.
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ImU8 (*ReadFn)(const ImU8* data, size_t off); // = 0 // optional handler to read bytes.
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void (*WriteFn)(ImU8* data, size_t off, ImU8 d); // = 0 // optional handler to write bytes.
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bool (*HighlightFn)(const ImU8* data, size_t off, bool next);//= 0 // optional handler to return Highlight property (to support non-contiguous highlighting).
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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 PreviewEndianess;
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ImGuiDataType PreviewDataType;
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MemoryEditor()
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{
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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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HighlightColor = IM_COL32(255, 255, 255, 50);
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ReadFn = NULL;
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WriteFn = NULL;
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HighlightFn = NULL;
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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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HighlightMin = HighlightMax = (size_t)-1;
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PreviewEndianess = 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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{
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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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{
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int AddrDigitsCount;
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float LineHeight;
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float GlyphWidth;
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float HexCellWidth;
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float SpacingBetweenMidCols;
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float PosHexStart;
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float PosHexEnd;
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float PosAsciiStart;
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float PosAsciiEnd;
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float WindowWidth;
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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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{
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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 = ImGui::CalcTextSize("F").x + 1; // We assume the font is mono-space
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s.HexCellWidth = (float)(int)(s.GlyphWidth * 2.5f); // "FF " we include trailing space in the width to easily catch clicks everywhere
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s.SpacingBetweenMidCols = (float)(int)(s.HexCellWidth * 0.25f); // Every OptMidColsCount columns we add a bit of extra spacing
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s.PosHexStart = (s.AddrDigitsCount + 2) * s.GlyphWidth;
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s.PosHexEnd = s.PosHexStart + (s.HexCellWidth * Cols);
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s.PosAsciiStart = s.PosAsciiEnd = s.PosHexEnd;
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if (OptShowAscii)
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{
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s.PosAsciiStart = s.PosHexEnd + s.GlyphWidth * 1;
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if (OptMidColsCount > 0)
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s.PosAsciiStart += (float)((Cols + OptMidColsCount - 1) / OptMidColsCount) * s.SpacingBetweenMidCols;
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s.PosAsciiEnd = s.PosAsciiStart + Cols * s.GlyphWidth;
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}
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s.WindowWidth = s.PosAsciiEnd + style.ScrollbarSize + 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, size_t base_display_addr = 0x0000)
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{
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Sizes s;
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CalcSizes(s, mem_size, base_display_addr);
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ImGui::SetNextWindowSizeConstraints(ImVec2(0.0f, 0.0f), ImVec2(s.WindowWidth, FLT_MAX));
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Open = true;
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if (ImGui::Begin(title, &Open, ImGuiWindowFlags_NoScrollbar | ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar))
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{
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if (ImGui::IsWindowHovered(ImGuiHoveredFlags_RootAndChildWindows) && ImGui::IsMouseReleased(ImGuiMouseButton_Right))
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ImGui::OpenPopup("context");
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DrawContents(mem_data, mem_size, base_display_addr);
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if (ContentsWidthChanged)
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{
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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, size_t base_display_addr = 0x0000)
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{
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if (Cols < 1)
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Cols = 1;
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if (mem_size == 0)
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return;
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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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// We begin into our scrolling region with the 'ImGuiWindowFlags_NoMove' in order to prevent click from moving the window.
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// This is used as a facility since our main click detection code doesn't assign an ActiveId so the 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 = 0;
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if (OptShowOptions)
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footer_height += height_separator + ImGui::GetFrameHeightWithSpacing() * 1;
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if (OptShowDataPreview)
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footer_height += height_separator + ImGui::GetFrameHeightWithSpacing() * 1 + ImGui::GetTextLineHeightWithSpacing() * 3;
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ImGui::BeginChild("##scrolling", ImVec2(0, -footer_height), false, 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 on visible_start_addr/visible_end_addr for our scrolling function.
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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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clipper.Step();
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const size_t visible_start_addr = clipper.DisplayStart * Cols;
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const size_t visible_end_addr = clipper.DisplayEnd * Cols;
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bool data_next = false;
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if (ReadOnly || 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 = OptShowDataPreview ? DataTypeGetSize(PreviewDataType) : 0;
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size_t data_editing_addr_backup = DataEditingAddr;
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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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{
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// Move cursor but only apply on next frame so scrolling with be synchronized (because currently we can't change the scrolling while the window is being rendered)
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if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_UpArrow)) && DataEditingAddr >= (size_t)Cols) { data_editing_addr_next = DataEditingAddr - Cols; DataEditingTakeFocus = true; }
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else if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_DownArrow)) && DataEditingAddr < mem_size - Cols) { data_editing_addr_next = DataEditingAddr + Cols; DataEditingTakeFocus = true; }
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else if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_LeftArrow)) && DataEditingAddr > 0) { data_editing_addr_next = DataEditingAddr - 1; DataEditingTakeFocus = true; }
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else if (ImGui::IsKeyPressed(ImGui::GetKeyIndex(ImGuiKey_RightArrow)) && DataEditingAddr < mem_size - 1) { data_editing_addr_next = DataEditingAddr + 1; DataEditingTakeFocus = true; }
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}
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if (data_editing_addr_next != (size_t)-1 && (data_editing_addr_next / Cols) != (data_editing_addr_backup / Cols))
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{
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// Track cursor movements
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const int scroll_offset = ((int)(data_editing_addr_next / Cols) - (int)(data_editing_addr_backup / Cols));
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const bool scroll_desired = (scroll_offset < 0 && data_editing_addr_next < visible_start_addr + Cols * 2) || (scroll_offset > 0 && data_editing_addr_next > visible_end_addr - Cols * 2);
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if (scroll_desired)
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ImGui::SetScrollY(ImGui::GetScrollY() + scroll_offset * s.LineHeight);
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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(ImVec2(window_pos.x + s.PosAsciiStart - s.GlyphWidth, window_pos.y), ImVec2(window_pos.x + s.PosAsciiStart - s.GlyphWidth, window_pos.y + 9999), 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 ? ImGui::GetColorU32(ImGuiCol_TextDisabled) : color_text;
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const char* format_address = OptUpperCaseHex ? "%0*" _PRISizeT "X: " : "%0*" _PRISizeT "x: ";
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const char* format_data = 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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for (int line_i = clipper.DisplayStart; line_i < clipper.DisplayEnd; 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, 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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{
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float byte_pos_x = s.PosHexStart + s.HexCellWidth * n;
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if (OptMidColsCount > 0)
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byte_pos_x += (float)(n / OptMidColsCount) * s.SpacingBetweenMidCols;
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ImGui::SameLine(byte_pos_x);
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// Draw highlight
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bool is_highlight_from_user_range = (addr >= HighlightMin && addr < HighlightMax);
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bool is_highlight_from_user_func = (HighlightFn && HighlightFn(mem_data, addr, false));
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bool is_highlight_from_preview = (addr >= DataPreviewAddr && addr < DataPreviewAddr + preview_data_type_size);
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if (is_highlight_from_user_range || is_highlight_from_user_func || is_highlight_from_preview)
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{
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ImVec2 pos = ImGui::GetCursorScreenPos();
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float highlight_width = s.GlyphWidth * 2;
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bool is_next_byte_highlighted = (addr + 1 < mem_size) && ((HighlightMax != (size_t)-1 && addr + 1 < HighlightMax) || (HighlightFn && HighlightFn(mem_data, addr + 1, true)));
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if (is_next_byte_highlighted || (n + 1 == Cols))
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{
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highlight_width = s.HexCellWidth;
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if (OptMidColsCount > 0 && n > 0 && (n + 1) < Cols && ((n + 1) % OptMidColsCount) == 0)
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highlight_width += s.SpacingBetweenMidCols;
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}
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draw_list->AddRectFilled(pos, ImVec2(pos.x + highlight_width, pos.y + s.LineHeight), HighlightColor);
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}
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if (DataEditingAddr == addr)
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{
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// Display text input on current byte
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bool data_write = false;
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ImGui::PushID((void*)addr);
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if (DataEditingTakeFocus)
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{
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ImGui::SetKeyboardFocusHere();
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ImGui::CaptureKeyboardFromApp(true);
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sprintf(AddrInputBuf, format_data, s.AddrDigitsCount, base_display_addr + addr);
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sprintf(DataInputBuf, format_byte, ReadFn ? ReadFn(mem_data, addr) : mem_data[addr]);
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}
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ImGui::PushItemWidth(s.GlyphWidth * 2);
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struct UserData
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{
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// 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.
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static int Callback(ImGuiInputTextCallbackData* data)
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{
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UserData* user_data = (UserData*)data->UserData;
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if (!data->HasSelection())
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user_data->CursorPos = data->CursorPos;
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if (data->SelectionStart == 0 && data->SelectionEnd == data->BufTextLen)
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{
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// When not editing a byte, always rewrite its content (this is a bit tricky, since InputText technically "owns" the master copy of the buffer we edit it in there)
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data->DeleteChars(0, data->BufTextLen);
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data->InsertChars(0, user_data->CurrentBufOverwrite);
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data->SelectionStart = 0;
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data->SelectionEnd = 2;
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data->CursorPos = 0;
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}
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return 0;
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}
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char CurrentBufOverwrite[3]; // Input
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int CursorPos; // Output
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};
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UserData user_data;
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user_data.CursorPos = -1;
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sprintf(user_data.CurrentBufOverwrite, format_byte, ReadFn ? ReadFn(mem_data, addr) : mem_data[addr]);
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ImGuiInputTextFlags flags = ImGuiInputTextFlags_CharsHexadecimal | ImGuiInputTextFlags_EnterReturnsTrue | ImGuiInputTextFlags_AutoSelectAll | ImGuiInputTextFlags_NoHorizontalScroll | ImGuiInputTextFlags_AlwaysInsertMode | ImGuiInputTextFlags_CallbackAlways;
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if (ImGui::InputText("##data", DataInputBuf, 32, flags, UserData::Callback, &user_data))
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data_write = data_next = true;
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else if (!DataEditingTakeFocus && !ImGui::IsItemActive())
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DataEditingAddr = data_editing_addr_next = (size_t)-1;
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DataEditingTakeFocus = false;
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ImGui::PopItemWidth();
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if (user_data.CursorPos >= 2)
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data_write = data_next = true;
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if (data_editing_addr_next != (size_t)-1)
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data_write = data_next = false;
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unsigned int data_input_value = 0;
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if (data_write && sscanf(DataInputBuf, "%X", &data_input_value) == 1)
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{
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if (WriteFn)
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WriteFn(mem_data, addr, (ImU8)data_input_value);
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else
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mem_data[addr] = (ImU8)data_input_value;
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}
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ImGui::PopID();
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}
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else
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{
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// NB: The trailing space is not visible but ensure there's no gap that the mouse cannot click on.
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ImU8 b = ReadFn ? ReadFn(mem_data, addr) : mem_data[addr];
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if (OptShowHexII)
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{
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if ((b >= 32 && b < 128))
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ImGui::Text(".%c ", b);
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else if (b == 0xFF && OptGreyOutZeroes)
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ImGui::TextDisabled("## ");
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else if (b == 0x00)
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ImGui::Text(" ");
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else
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ImGui::Text(format_byte_space, b);
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}
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else
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{
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if (b == 0 && OptGreyOutZeroes)
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ImGui::TextDisabled("00 ");
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else
|
|
ImGui::Text(format_byte_space, b);
|
|
}
|
|
if (!ReadOnly && ImGui::IsItemHovered() && ImGui::IsMouseClicked(0))
|
|
{
|
|
DataEditingTakeFocus = true;
|
|
data_editing_addr_next = addr;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (OptShowAscii)
|
|
{
|
|
// Draw ASCII values
|
|
ImGui::SameLine(s.PosAsciiStart);
|
|
ImVec2 pos = ImGui::GetCursorScreenPos();
|
|
addr = line_i * Cols;
|
|
ImGui::PushID(line_i);
|
|
if (ImGui::InvisibleButton("ascii", ImVec2(s.PosAsciiEnd - s.PosAsciiStart, s.LineHeight)))
|
|
{
|
|
DataEditingAddr = DataPreviewAddr = addr + (size_t)((ImGui::GetIO().MousePos.x - pos.x) / s.GlyphWidth);
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
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));
|
|
}
|
|
unsigned char c = ReadFn ? ReadFn(mem_data, addr) : 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;
|
|
}
|
|
}
|
|
}
|
|
IM_ASSERT(clipper.Step() == false);
|
|
clipper.End();
|
|
ImGui::PopStyleVar(2);
|
|
ImGui::EndChild();
|
|
|
|
if (data_next && DataEditingAddr < mem_size)
|
|
{
|
|
DataEditingAddr = DataPreviewAddr = DataEditingAddr + 1;
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
else if (data_editing_addr_next != (size_t)-1)
|
|
{
|
|
DataEditingAddr = DataPreviewAddr = data_editing_addr_next;
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
// Notify the main window of our ideal child content size (FIXME: we are missing an API to get the contents size from the child)
|
|
ImGui::SetCursorPosX(s.WindowWidth);
|
|
}
|
|
|
|
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("context");
|
|
if (ImGui::BeginPopup("context"))
|
|
{
|
|
ImGui::PushItemWidth(56);
|
|
if (ImGui::DragInt("##cols", &Cols, 0.2f, 4, 32, "%d cols")) { ContentsWidthChanged = true; if (Cols < 1) Cols = 1; }
|
|
ImGui::PopItemWidth();
|
|
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();
|
|
}
|
|
|
|
ImGui::SameLine();
|
|
ImGui::Text(format_range, s.AddrDigitsCount, base_display_addr, s.AddrDigitsCount, base_display_addr + mem_size - 1);
|
|
ImGui::SameLine();
|
|
ImGui::PushItemWidth((s.AddrDigitsCount + 1) * s.GlyphWidth + style.FramePadding.x * 2.0f);
|
|
if (ImGui::InputText("##addr", AddrInputBuf, 32, 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;
|
|
}
|
|
}
|
|
ImGui::PopItemWidth();
|
|
|
|
if (GotoAddr != (size_t)-1)
|
|
{
|
|
if (GotoAddr < mem_size)
|
|
{
|
|
ImGui::BeginChild("##scrolling");
|
|
ImGui::SetScrollFromPosY(ImGui::GetCursorStartPos().y + (GotoAddr / Cols) * ImGui::GetTextLineHeight());
|
|
ImGui::EndChild();
|
|
DataEditingAddr = DataPreviewAddr = GotoAddr;
|
|
DataEditingTakeFocus = true;
|
|
}
|
|
GotoAddr = (size_t)-1;
|
|
}
|
|
}
|
|
|
|
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::PushItemWidth((s.GlyphWidth * 10.0f) + style.FramePadding.x * 2.0f + style.ItemInnerSpacing.x);
|
|
if (ImGui::BeginCombo("##combo_type", DataTypeGetDesc(PreviewDataType), ImGuiComboFlags_HeightLargest))
|
|
{
|
|
for (int n = 0; n < ImGuiDataType_COUNT; n++)
|
|
if (ImGui::Selectable(DataTypeGetDesc((ImGuiDataType)n), PreviewDataType == n))
|
|
PreviewDataType = (ImGuiDataType)n;
|
|
ImGui::EndCombo();
|
|
}
|
|
ImGui::PopItemWidth();
|
|
ImGui::SameLine();
|
|
ImGui::PushItemWidth((s.GlyphWidth * 6.0f) + style.FramePadding.x * 2.0f + style.ItemInnerSpacing.x);
|
|
ImGui::Combo("##combo_endianess", &PreviewEndianess, "LE\0BE\0\0");
|
|
ImGui::PopItemWidth();
|
|
|
|
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
|
|
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 < ImGuiDataType_COUNT);
|
|
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 < ImGuiDataType_COUNT);
|
|
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
|
|
{
|
|
uint16_t x = 1;
|
|
char c[2];
|
|
memcpy(c, &x, 2);
|
|
return c[0] != 0;
|
|
}
|
|
|
|
static void* EndianessCopyBigEndian(void* _dst, void* _src, size_t s, int is_little_endian)
|
|
{
|
|
if (is_little_endian)
|
|
{
|
|
uint8_t* dst = (uint8_t*)_dst;
|
|
uint8_t* src = (uint8_t*)_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* EndianessCopyLittleEndian(void* _dst, void* _src, size_t s, int is_little_endian)
|
|
{
|
|
if (is_little_endian)
|
|
{
|
|
return memcpy(_dst, _src, s);
|
|
}
|
|
else
|
|
{
|
|
uint8_t* dst = (uint8_t*)_dst;
|
|
uint8_t* src = (uint8_t*)_src + s - 1;
|
|
for (int i = 0, n = (int)s; i < n; ++i)
|
|
memcpy(dst++, src--, 1);
|
|
return _dst;
|
|
}
|
|
}
|
|
|
|
void* EndianessCopy(void* dst, void* src, size_t size) const
|
|
{
|
|
static void* (*fp)(void*, void*, size_t, int) = NULL;
|
|
if (fp == NULL)
|
|
fp = IsBigEndian() ? EndianessCopyBigEndian : EndianessCopyLittleEndian;
|
|
return fp(dst, src, size, PreviewEndianess);
|
|
}
|
|
|
|
const char* FormatBinary(const uint8_t* 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
|
|
{
|
|
uint8_t 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);
|
|
else
|
|
memcpy(buf, mem_data + addr, size);
|
|
|
|
if (data_format == DataFormat_Bin)
|
|
{
|
|
uint8_t binbuf[8];
|
|
EndianessCopy(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:
|
|
{
|
|
int8_t int8 = 0;
|
|
EndianessCopy(&int8, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hhd", int8); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%02x", int8 & 0xFF); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_U8:
|
|
{
|
|
uint8_t uint8 = 0;
|
|
EndianessCopy(&uint8, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hhu", uint8); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%02x", uint8 & 0XFF); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_S16:
|
|
{
|
|
int16_t int16 = 0;
|
|
EndianessCopy(&int16, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hd", int16); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%04x", int16 & 0xFFFF); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_U16:
|
|
{
|
|
uint16_t uint16 = 0;
|
|
EndianessCopy(&uint16, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%hu", uint16); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%04x", uint16 & 0xFFFF); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_S32:
|
|
{
|
|
int32_t int32 = 0;
|
|
EndianessCopy(&int32, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%d", int32); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%08x", int32); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_U32:
|
|
{
|
|
uint32_t uint32 = 0;
|
|
EndianessCopy(&uint32, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%u", uint32); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%08x", uint32); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_S64:
|
|
{
|
|
int64_t int64 = 0;
|
|
EndianessCopy(&int64, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%lld", (long long)int64); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)int64); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_U64:
|
|
{
|
|
uint64_t uint64 = 0;
|
|
EndianessCopy(&uint64, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%llu", (long long)uint64); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "0x%016llx", (long long)uint64); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_Float:
|
|
{
|
|
float float32 = 0.0f;
|
|
EndianessCopy(&float32, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%f", float32); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "%a", float32); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_Double:
|
|
{
|
|
double float64 = 0.0;
|
|
EndianessCopy(&float64, buf, size);
|
|
if (data_format == DataFormat_Dec) { ImSnprintf(out_buf, out_buf_size, "%f", float64); return; }
|
|
if (data_format == DataFormat_Hex) { ImSnprintf(out_buf, out_buf_size, "%a", float64); return; }
|
|
break;
|
|
}
|
|
case ImGuiDataType_COUNT:
|
|
break;
|
|
} // Switch
|
|
IM_ASSERT(0); // Shouldn't reach
|
|
}
|
|
};
|
|
|
|
#undef _PRISizeT
|
|
#undef ImSnprintf
|
|
|
|
#ifdef _MSC_VER
|
|
#pragma warning (pop)
|
|
#endif |