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Updated imgui to 1.89.5

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This commit is contained in:
Martin Felis
2023-04-14 17:44:25 +02:00
parent 509f9616ad
commit 2e631b4fc3
167 changed files with 30368 additions and 32226 deletions
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3rdparty/imgui/misc/README.txt
Vendored
+4 -5
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@@ -3,6 +3,10 @@ misc/cpp/
InputText() wrappers for C++ standard library (STL) type: std::string.
This is also an example of how you may wrap your own similar types.
misc/debuggers/
Helper files for popular debuggers.
With the .natvis file, types like ImVector<> will be displayed nicely in Visual Studio debugger.
misc/fonts/
Fonts loading/merging instructions (e.g. How to handle glyph ranges, how to merge icons fonts).
Command line tool "binary_to_compressed_c" to create compressed arrays to embed data in source code.
@@ -12,11 +16,6 @@ misc/freetype/
Font atlas builder/rasterizer using FreeType instead of stb_truetype.
Benefit from better FreeType rasterization, in particular for small fonts.
misc/natvis/
Natvis file to describe dear imgui types in the Visual Studio debugger.
With this, types like ImVector<> will be displayed nicely in the debugger.
You can include this file a Visual Studio project file, or install it in Visual Studio folder.
misc/single_file/
Single-file header stub.
We use this to validate compiling all *.cpp files in a same compilation unit.
3rdparty/imgui/misc/cpp/README.txt
Vendored
+3
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@@ -8,3 +8,6 @@ imgui_scoped.h
Additional header file with some RAII-style wrappers for common Dear ImGui functions.
Try by merging: https://github.com/ocornut/imgui/pull/2197
Discuss at: https://github.com/ocornut/imgui/issues/2096
See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki:
https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness
3rdparty/imgui/misc/cpp/imgui_stdlib.cpp
Vendored
+3 -4
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@@ -1,13 +1,12 @@
// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.)
// This is also an example of how you may wrap your own similar types.
// Compatibility:
// - std::string support is only guaranteed to work from C++11.
// If you try to use it pre-C++11, please share your findings (w/ info about compiler/architecture)
// Changelog:
// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string
// See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki:
// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness
#include "imgui.h"
#include "imgui_stdlib.h"
3rdparty/imgui/misc/cpp/imgui_stdlib.h
Vendored
+6 -7
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@@ -1,13 +1,12 @@
// dear imgui: wrappers for C++ standard library (STL) types (std::string, etc.)
// This is also an example of how you may wrap your own similar types.
// Compatibility:
// - std::string support is only guaranteed to work from C++11.
// If you try to use it pre-C++11, please share your findings (w/ info about compiler/architecture)
// Changelog:
// - v0.10: Initial version. Added InputText() / InputTextMultiline() calls with std::string
// See more C++ related extension (fmt, RAII, syntaxis sugar) on Wiki:
// https://github.com/ocornut/imgui/wiki/Useful-Extensions#cness
#pragma once
#include <string>
@@ -16,7 +15,7 @@ namespace ImGui
{
// ImGui::InputText() with std::string
// Because text input needs dynamic resizing, we need to setup a callback to grow the capacity
IMGUI_API bool InputText(const char* label, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = NULL, void* user_data = NULL);
IMGUI_API bool InputText(const char* label, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
IMGUI_API bool InputTextMultiline(const char* label, std::string* str, const ImVec2& size = ImVec2(0, 0), ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
IMGUI_API bool InputTextWithHint(const char* label, const char* hint, std::string* str, ImGuiInputTextFlags flags = 0, ImGuiInputTextCallback callback = nullptr, void* user_data = nullptr);
}
3rdparty/imgui/misc/debuggers/README.txt
Vendored
+16
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@@ -0,0 +1,16 @@
HELPER FILES FOR POPULAR DEBUGGERS
imgui.gdb
GDB: disable stepping into trivial functions.
(read comments inside file for details)
imgui.natstepfilter
Visual Studio Debugger: disable stepping into trivial functions.
(read comments inside file for details)
imgui.natvis
Visual Studio Debugger: describe Dear ImGui types for better display.
With this, types like ImVector<> will be displayed nicely in the debugger.
(read comments inside file for details)
3rdparty/imgui/misc/debuggers/imgui.gdb
Vendored
+12
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@@ -0,0 +1,12 @@
# GDB configuration to aid debugging experience
# To enable these customizations edit $HOME/.gdbinit (or ./.gdbinit if local gdbinit is enabled) and add:
# add-auto-load-safe-path /path/to/imgui.gdb
# source /path/to/imgui.gdb
#
# More Information at:
# * https://sourceware.org/gdb/current/onlinedocs/gdb/gdbinit-man.html
# * https://sourceware.org/gdb/current/onlinedocs/gdb/Init-File-in-the-Current-Directory.html#Init-File-in-the-Current-Directory
# Disable stepping into trivial functions
skip -rfunction Im(Vec2|Vec4|Strv|Vector|Span)::.+
3rdparty/imgui/misc/debuggers/imgui.natstepfilter
Vendored
+31
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@@ -0,0 +1,31 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
.natstepfilter file for Visual Studio debugger.
Purpose: instruct debugger to skip some functions when using StepInto (F11)
Since Visual Studio 2022 version 17.6 Preview 2 (currently available as a "Preview" build on March 14, 2023)
It is possible to add the .natstepfilter file to your project file and it will automatically be used.
(https://developercommunity.visualstudio.com/t/allow-natstepfilter-and-natjmc-to-be-included-as-p/561718)
For older Visual Studio version prior to 2022 17.6 Preview 2:
* copy in %USERPROFILE%\Documents\Visual Studio XXXX\Visualizers (current user)
* or copy in %VsInstallDirectory%\Common7\Packages\Debugger\Visualizers (all users)
If you have multiple VS version installed, the version that matters is the one you are using the IDE/debugger
of (not the compiling toolset). This is supported since Visual Studio 2012.
More information at: https://docs.microsoft.com/en-us/visualstudio/debugger/just-my-code?view=vs-2019#BKMK_C___Just_My_Code
-->
<StepFilter xmlns="http://schemas.microsoft.com/vstudio/debugger/natstepfilter/2010">
<!-- Disable stepping into trivial functions -->
<Function>
<Name>(ImVec2|ImVec4|ImStrv)::.+</Name>
<Action>NoStepInto</Action>
</Function>
<Function>
<Name>(ImVector|ImSpan).*::operator.+</Name>
<Action>NoStepInto</Action>
</Function>
</StepFilter>
3rdparty/imgui/misc/natvis/imgui.natvis → 3rdparty/imgui/misc/debuggers/imgui.natvis
Vendored
+21 -6
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@@ -1,6 +1,15 @@
<?xml version="1.0" encoding="utf-8"?>
<!--
.natvis file for Visual Studio debugger.
Purpose: provide nicer views on data types used by Dear ImGui.
<!-- natvis file for Visual Studio debugger (you can include this in a project file, or install in visual studio folder) -->
To enable:
* include file in your VS project (most recommended: not intrusive and always kept up to date!)
* or copy in %USERPROFILE%\Documents\Visual Studio XXXX\Visualizers (current user)
* or copy in %VsInstallDirectory%\Common7\Packages\Debugger\Visualizers (all users)
More information at: https://docs.microsoft.com/en-us/visualstudio/debugger/create-custom-views-of-native-objects?view=vs-2019
-->
<AutoVisualizer xmlns="http://schemas.microsoft.com/vstudio/debugger/natvis/2010">
@@ -14,6 +23,16 @@
</Expand>
</Type>
<Type Name="ImSpan&lt;*&gt;">
<DisplayString>{{Size={DataEnd-Data} }}</DisplayString>
<Expand>
<ArrayItems>
<Size>DataEnd-Data</Size>
<ValuePointer>Data</ValuePointer>
</ArrayItems>
</Expand>
</Type>
<Type Name="ImVec2">
<DisplayString>{{x={x,g} y={y,g}}}</DisplayString>
</Type>
@@ -36,8 +55,4 @@
<DisplayString>{{Name {Name,s} Active {(Active||WasActive)?1:0,d} Child {(Flags &amp; 0x01000000)?1:0,d} Popup {(Flags &amp; 0x04000000)?1:0,d} Hidden {(Hidden)?1:0,d}}</DisplayString>
</Type>
<Type Name="ImGuiDockNode">
<DisplayString>{{ID {ID,x} Pos=({Pos.x,g} {Pos.y,g}) Size=({Size.x,g} {Size.y,g}) Parent {(ParentNode==0)?0:ParentNode->ID,x} Childs {(ChildNodes[0] != 0)+(ChildNodes[1] != 0)} Windows {Windows.Size} }</DisplayString>
</Type>
</AutoVisualizer>
</AutoVisualizer>
3rdparty/imgui/misc/fonts/binary_to_compressed_c.cpp
Vendored
+31 -27
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@@ -10,11 +10,12 @@
// Build with, e.g:
// # cl.exe binary_to_compressed_c.cpp
// # gcc binary_to_compressed_c.cpp
// # g++ binary_to_compressed_c.cpp
// # clang++ binary_to_compressed_c.cpp
// You can also find a precompiled Windows binary in the binary/demo package available from https://github.com/ocornut/imgui
// Usage:
// binary_to_compressed_c.exe [-base85] [-nocompress] <inputfile> <symbolname>
// binary_to_compressed_c.exe [-base85] [-nocompress] [-nostatic] <inputfile> <symbolname>
// Usage example:
// # binary_to_compressed_c.exe myfont.ttf MyFont > myfont.cpp
// # binary_to_compressed_c.exe -base85 myfont.ttf MyFont > myfont.cpp
@@ -30,23 +31,25 @@ typedef unsigned int stb_uint;
typedef unsigned char stb_uchar;
stb_uint stb_compress(stb_uchar* out, stb_uchar* in, stb_uint len);
static bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_base85_encoding, bool use_compression);
static bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_base85_encoding, bool use_compression, bool use_static);
int main(int argc, char** argv)
{
if (argc < 3)
{
printf("Syntax: %s [-base85] [-nocompress] <inputfile> <symbolname>\n", argv[0]);
printf("Syntax: %s [-base85] [-nocompress] [-nostatic] <inputfile> <symbolname>\n", argv[0]);
return 0;
}
int argn = 1;
bool use_base85_encoding = false;
bool use_compression = true;
if (argv[argn][0] == '-')
bool use_static = true;
while (argn < (argc - 2) && argv[argn][0] == '-')
{
if (strcmp(argv[argn], "-base85") == 0) { use_base85_encoding = true; argn++; }
else if (strcmp(argv[argn], "-nocompress") == 0) { use_compression = false; argn++; }
else if (strcmp(argv[argn], "-nostatic") == 0) { use_static = false; argn++; }
else
{
fprintf(stderr, "Unknown argument: '%s'\n", argv[argn]);
@@ -54,7 +57,7 @@ int main(int argc, char** argv)
}
}
bool ret = binary_to_compressed_c(argv[argn], argv[argn + 1], use_base85_encoding, use_compression);
bool ret = binary_to_compressed_c(argv[argn], argv[argn + 1], use_base85_encoding, use_compression, use_static);
if (!ret)
fprintf(stderr, "Error opening or reading file: '%s'\n", argv[argn]);
return ret ? 0 : 1;
@@ -63,10 +66,10 @@ int main(int argc, char** argv)
char Encode85Byte(unsigned int x)
{
x = (x % 85) + 35;
return (x >= '\\') ? x + 1 : x;
return (char)((x >= '\\') ? x + 1 : x);
}
bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_base85_encoding, bool use_compression)
bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_base85_encoding, bool use_compression, bool use_static)
{
// Read file
FILE* f = fopen(filename, "rb");
@@ -89,10 +92,11 @@ bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_b
FILE* out = stdout;
fprintf(out, "// File: '%s' (%d bytes)\n", filename, (int)data_sz);
fprintf(out, "// Exported using binary_to_compressed_c.cpp\n");
const char* static_str = use_static ? "static " : "";
const char* compressed_str = use_compression ? "compressed_" : "";
if (use_base85_encoding)
{
fprintf(out, "static const char %s_%sdata_base85[%d+1] =\n \"", symbol, compressed_str, (int)((compressed_sz + 3) / 4)*5);
fprintf(out, "%sconst char %s_%sdata_base85[%d+1] =\n \"", static_str, symbol, compressed_str, (int)((compressed_sz + 3) / 4)*5);
char prev_c = 0;
for (int src_i = 0; src_i < compressed_sz; src_i += 4)
{
@@ -111,8 +115,8 @@ bool binary_to_compressed_c(const char* filename, const char* symbol, bool use_b
}
else
{
fprintf(out, "static const unsigned int %s_%ssize = %d;\n", symbol, compressed_str, (int)compressed_sz);
fprintf(out, "static const unsigned int %s_%sdata[%d/4] =\n{", symbol, compressed_str, (int)((compressed_sz + 3) / 4)*4);
fprintf(out, "%sconst unsigned int %s_%ssize = %d;\n", static_str, symbol, compressed_str, (int)compressed_sz);
fprintf(out, "%sconst unsigned int %s_%sdata[%d/4] =\n{", static_str, symbol, compressed_str, (int)((compressed_sz + 3) / 4)*4);
int column = 0;
for (int i = 0; i < compressed_sz; i += 4)
{
@@ -259,17 +263,17 @@ static int stb_compress_chunk(stb_uchar *history,
int best = 2, dist=0;
if (q+65536 > end)
match_max = end-q;
match_max = (stb_uint)(end-q);
else
match_max = 65536;
#define stb__nc(b,d) ((d) <= window && ((b) > 9 || stb_not_crap(b,d)))
#define stb__nc(b,d) ((d) <= window && ((b) > 9 || stb_not_crap((int)(b),(int)(d))))
#define STB__TRY(t,p) /* avoid retrying a match we already tried */ \
if (p ? dist != q-t : 1) \
if (p ? dist != (int)(q-t) : 1) \
if ((m = stb_matchlen(t, q, match_max)) > best) \
if (stb__nc(m,q-(t))) \
best = m, dist = q - (t)
best = m, dist = (int)(q - (t))
// rather than search for all matches, only try 4 candidate locations,
// chosen based on 4 different hash functions of different lengths.
@@ -295,24 +299,24 @@ static int stb_compress_chunk(stb_uchar *history,
if (best < 3) { // fast path literals
++q;
} else if (best > 2 && best <= 0x80 && dist <= 0x100) {
outliterals(lit_start, q-lit_start); lit_start = (q += best);
outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
stb_out(0x80 + best-1);
stb_out(dist-1);
} else if (best > 5 && best <= 0x100 && dist <= 0x4000) {
outliterals(lit_start, q-lit_start); lit_start = (q += best);
outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
stb_out2(0x4000 + dist-1);
stb_out(best-1);
} else if (best > 7 && best <= 0x100 && dist <= 0x80000) {
outliterals(lit_start, q-lit_start); lit_start = (q += best);
outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
stb_out3(0x180000 + dist-1);
stb_out(best-1);
} else if (best > 8 && best <= 0x10000 && dist <= 0x80000) {
outliterals(lit_start, q-lit_start); lit_start = (q += best);
outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
stb_out3(0x100000 + dist-1);
stb_out2(best-1);
} else if (best > 9 && dist <= 0x1000000) {
if (best > 65536) best = 65536;
outliterals(lit_start, q-lit_start); lit_start = (q += best);
outliterals(lit_start, (int)(q-lit_start)); lit_start = (q += best);
if (best <= 0x100) {
stb_out(0x06);
stb_out3(dist-1);
@@ -332,10 +336,10 @@ static int stb_compress_chunk(stb_uchar *history,
q = start+length;
// the literals are everything from lit_start to q
*pending_literals = (q - lit_start);
*pending_literals = (int)(q - lit_start);
stb__running_adler = stb_adler32(stb__running_adler, start, q - start);
return q - start;
stb__running_adler = stb_adler32(stb__running_adler, start, (stb_uint)(q - start));
return (int)(q - start);
}
static int stb_compress_inner(stb_uchar *input, stb_uint length)
@@ -345,9 +349,9 @@ static int stb_compress_inner(stb_uchar *input, stb_uint length)
stb_uchar **chash;
chash = (stb_uchar**) malloc(stb__hashsize * sizeof(stb_uchar*));
if (chash == NULL) return 0; // failure
if (chash == nullptr) return 0; // failure
for (i=0; i < stb__hashsize; ++i)
chash[i] = NULL;
chash[i] = nullptr;
// stream signature
stb_out(0x57); stb_out(0xbc);
@@ -376,9 +380,9 @@ static int stb_compress_inner(stb_uchar *input, stb_uint length)
stb_uint stb_compress(stb_uchar *out, stb_uchar *input, stb_uint length)
{
stb__out = out;
stb__outfile = NULL;
stb__outfile = nullptr;
stb_compress_inner(input, length);
return stb__out - out;
return (stb_uint)(stb__out - out);
}
3rdparty/imgui/misc/freetype/README.md
Vendored
+20 -115
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@@ -1,132 +1,37 @@
# imgui_freetype
Build font atlases using FreeType instead of stb_truetype (which is the default font rasterizer in Dear ImGui).
Build font atlases using FreeType instead of stb_truetype (which is the default font rasterizer).
<br>by @vuhdo, @mikesart, @ocornut.
### Usage
1. Get latest FreeType binaries or build yourself (under Windows you may use vcpkg with `vcpkg install freetype`, `vcpkg integrate install`).
2. Add imgui_freetype.h/cpp alongside your imgui sources.
3. Include imgui_freetype.h after imgui.h.
4. Call `ImGuiFreeType::BuildFontAtlas()` *BEFORE* calling `ImFontAtlas::GetTexDataAsRGBA32()` or `ImFontAtlas::Build()` (so normal Build() won't be called):
1. Get latest FreeType binaries or build yourself (under Windows you may use vcpkg with `vcpkg install freetype --triplet=x64-windows`, `vcpkg integrate install`).
2. Add imgui_freetype.h/cpp alongside your project files.
3. Add `#define IMGUI_ENABLE_FREETYPE` in your [imconfig.h](https://github.com/ocornut/imgui/blob/master/imconfig.h) file
```cpp
// See ImGuiFreeType::RasterizationFlags
unsigned int flags = ImGuiFreeType::NoHinting;
ImGuiFreeType::BuildFontAtlas(io.Fonts, flags);
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
```
### Gamma Correct Blending
### About Gamma Correct Blending
FreeType assumes blending in linear space rather than gamma space.
See FreeType note for [FT_Render_Glyph](https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_Render_Glyph).
For correct results you need to be using sRGB and convert to linear space in the pixel shader output.
The default Dear ImGui styles will be impacted by this change (alpha values will need tweaking).
### Test code Usage
```cpp
#include "misc/freetype/imgui_freetype.h"
#include "misc/freetype/imgui_freetype.cpp"
### Testbed for toying with settings (for developers)
// Load various small fonts
ImGuiIO& io = ImGui::GetIO();
io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 13.0f);
io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 13.0f);
io.Fonts->AddFontDefault();
FreeTypeTest freetype_test;
// Main Loop
while (true)
{
if (freetype_test.UpdateRebuild())
{
// REUPLOAD FONT TEXTURE TO GPU
ImGui_ImplXXX_DestroyDeviceObjects();
ImGui_ImplXXX_CreateDeviceObjects();
}
ImGui::NewFrame();
freetype_test.ShowFreetypeOptionsWindow();
...
}
```
### Test code
```cpp
#include "misc/freetype/imgui_freetype.h"
#include "misc/freetype/imgui_freetype.cpp"
struct FreeTypeTest
{
enum FontBuildMode
{
FontBuildMode_FreeType,
FontBuildMode_Stb
};
FontBuildMode BuildMode;
bool WantRebuild;
float FontsMultiply;
int FontsPadding;
unsigned int FontsFlags;
FreeTypeTest()
{
BuildMode = FontBuildMode_FreeType;
WantRebuild = true;
FontsMultiply = 1.0f;
FontsPadding = 1;
FontsFlags = 0;
}
// Call _BEFORE_ NewFrame()
bool UpdateRebuild()
{
if (!WantRebuild)
return false;
ImGuiIO& io = ImGui::GetIO();
io.Fonts->TexGlyphPadding = FontsPadding;
for (int n = 0; n < io.Fonts->ConfigData.Size; n++)
{
ImFontConfig* font_config = (ImFontConfig*)&io.Fonts->ConfigData[n];
font_config->RasterizerMultiply = FontsMultiply;
font_config->RasterizerFlags = (BuildMode == FontBuildMode_FreeType) ? FontsFlags : 0x00;
}
if (BuildMode == FontBuildMode_FreeType)
ImGuiFreeType::BuildFontAtlas(io.Fonts, FontsFlags);
else if (BuildMode == FontBuildMode_Stb)
io.Fonts->Build();
WantRebuild = false;
return true;
}
// Call to draw interface
void ShowFreetypeOptionsWindow()
{
ImGui::Begin("FreeType Options");
ImGui::ShowFontSelector("Fonts");
WantRebuild |= ImGui::RadioButton("FreeType", (int*)&BuildMode, FontBuildMode_FreeType);
ImGui::SameLine();
WantRebuild |= ImGui::RadioButton("Stb (Default)", (int*)&BuildMode, FontBuildMode_Stb);
WantRebuild |= ImGui::DragFloat("Multiply", &FontsMultiply, 0.001f, 0.0f, 2.0f);
WantRebuild |= ImGui::DragInt("Padding", &FontsPadding, 0.1f, 0, 16);
if (BuildMode == FontBuildMode_FreeType)
{
WantRebuild |= ImGui::CheckboxFlags("NoHinting", &FontsFlags, ImGuiFreeType::NoHinting);
WantRebuild |= ImGui::CheckboxFlags("NoAutoHint", &FontsFlags, ImGuiFreeType::NoAutoHint);
WantRebuild |= ImGui::CheckboxFlags("ForceAutoHint", &FontsFlags, ImGuiFreeType::ForceAutoHint);
WantRebuild |= ImGui::CheckboxFlags("LightHinting", &FontsFlags, ImGuiFreeType::LightHinting);
WantRebuild |= ImGui::CheckboxFlags("MonoHinting", &FontsFlags, ImGuiFreeType::MonoHinting);
WantRebuild |= ImGui::CheckboxFlags("Bold", &FontsFlags, ImGuiFreeType::Bold);
WantRebuild |= ImGui::CheckboxFlags("Oblique", &FontsFlags, ImGuiFreeType::Oblique);
WantRebuild |= ImGui::CheckboxFlags("Monochrome", &FontsFlags, ImGuiFreeType::Monochrome);
}
ImGui::End();
}
};
```
See https://gist.github.com/ocornut/b3a9ecf13502fd818799a452969649ad
### Known issues
- `cfg.OversampleH`, `OversampleV` are ignored (but perhaps not so necessary with this rasterizer).
- Oversampling settins are ignored but also not so much necessary with the higher quality rendering.
### Comparison
Small, thin anti-aliased fonts typically benefit a lot from FreeType's hinting:
![comparing_font_rasterizers](https://user-images.githubusercontent.com/8225057/107550178-fef87f00-6bd0-11eb-8d09-e2edb2f0ccfc.gif)
### Colorful glyphs/emojis
You can use the `ImGuiFreeTypeBuilderFlags_LoadColor` flag to load certain colorful glyphs. See the
["Using Colorful Glyphs/Emojis"](https://github.com/ocornut/imgui/blob/master/docs/FONTS.md#using-colorful-glyphsemojis) section of FONTS.md.
![colored glyphs](https://user-images.githubusercontent.com/8225057/106171241-9dc4ba80-6191-11eb-8a69-ca1467b206d1.png)
3rdparty/imgui/misc/freetype/imgui_freetype.cpp
Vendored
+215 -98
View File
@@ -1,25 +1,35 @@
// dear imgui: wrapper to use FreeType (instead of stb_truetype)
// Get latest version at https://github.com/ocornut/imgui/tree/master/misc/freetype
// Original code by @vuhdo (Aleksei Skriabin). Improvements by @mikesart. Maintained and v0.60+ by @ocornut.
// dear imgui: FreeType font builder (used as a replacement for the stb_truetype builder)
// (code)
// Changelog:
// - v0.50: (2017/08/16) imported from https://github.com/Vuhdo/imgui_freetype into http://www.github.com/ocornut/imgui_club, updated for latest changes in ImFontAtlas, minor tweaks.
// - v0.51: (2017/08/26) cleanup, optimizations, support for ImFontConfig::RasterizerFlags, ImFontConfig::RasterizerMultiply.
// - v0.52: (2017/09/26) fixes for imgui internal changes.
// - v0.53: (2017/10/22) minor inconsequential change to match change in master (removed an unnecessary statement).
// - v0.54: (2018/01/22) fix for addition of ImFontAtlas::TexUvscale member.
// - v0.55: (2018/02/04) moved to main imgui repository (away from http://www.github.com/ocornut/imgui_club)
// - v0.56: (2018/06/08) added support for ImFontConfig::GlyphMinAdvanceX, GlyphMaxAdvanceX.
// - v0.60: (2019/01/10) re-factored to match big update in STB builder. fixed texture height waste. fixed redundant glyphs when merging. support for glyph padding.
// - v0.61: (2019/01/15) added support for imgui allocators + added FreeType only override function SetAllocatorFunctions().
// - v0.62: (2019/02/09) added RasterizerFlags::Monochrome flag to disable font anti-aliasing (combine with ::MonoHinting for best results!)
// - v0.63: (2020/06/04) fix for rare case where FT_Get_Char_Index() succeed but FT_Load_Glyph() fails.
// Get the latest version at https://github.com/ocornut/imgui/tree/master/misc/freetype
// Original code by @vuhdo (Aleksei Skriabin). Improvements by @mikesart. Maintained since 2019 by @ocornut.
// Gamma Correct Blending:
// FreeType assumes blending in linear space rather than gamma space.
// See https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_Render_Glyph
// For correct results you need to be using sRGB and convert to linear space in the pixel shader output.
// The default imgui styles will be impacted by this change (alpha values will need tweaking).
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023/01/04: fixed a packing issue which in some occurrences would prevent large amount of glyphs from being packed correctly.
// 2021/08/23: fixed crash when FT_Render_Glyph() fails to render a glyph and returns NULL.
// 2021/03/05: added ImGuiFreeTypeBuilderFlags_Bitmap to load bitmap glyphs.
// 2021/03/02: set 'atlas->TexPixelsUseColors = true' to help some backends with deciding of a prefered texture format.
// 2021/01/28: added support for color-layered glyphs via ImGuiFreeTypeBuilderFlags_LoadColor (require Freetype 2.10+).
// 2021/01/26: simplified integration by using '#define IMGUI_ENABLE_FREETYPE'.
// renamed ImGuiFreeType::XXX flags to ImGuiFreeTypeBuilderFlags_XXX for consistency with other API. removed ImGuiFreeType::BuildFontAtlas().
// 2020/06/04: fix for rare case where FT_Get_Char_Index() succeed but FT_Load_Glyph() fails.
// 2019/02/09: added RasterizerFlags::Monochrome flag to disable font anti-aliasing (combine with ::MonoHinting for best results!)
// 2019/01/15: added support for imgui allocators + added FreeType only override function SetAllocatorFunctions().
// 2019/01/10: re-factored to match big update in STB builder. fixed texture height waste. fixed redundant glyphs when merging. support for glyph padding.
// 2018/06/08: added support for ImFontConfig::GlyphMinAdvanceX, GlyphMaxAdvanceX.
// 2018/02/04: moved to main imgui repository (away from http://www.github.com/ocornut/imgui_club)
// 2018/01/22: fix for addition of ImFontAtlas::TexUvscale member.
// 2017/10/22: minor inconsequential change to match change in master (removed an unnecessary statement).
// 2017/09/26: fixes for imgui internal changes.
// 2017/08/26: cleanup, optimizations, support for ImFontConfig::RasterizerFlags, ImFontConfig::RasterizerMultiply.
// 2017/08/16: imported from https://github.com/Vuhdo/imgui_freetype into http://www.github.com/ocornut/imgui_club, updated for latest changes in ImFontAtlas, minor tweaks.
// About Gamma Correct Blending:
// - FreeType assumes blending in linear space rather than gamma space.
// - See https://www.freetype.org/freetype2/docs/reference/ft2-base_interface.html#FT_Render_Glyph
// - For correct results you need to be using sRGB and convert to linear space in the pixel shader output.
// - The default dear imgui styles will be impacted by this change (alpha values will need tweaking).
// FIXME: cfg.OversampleH, OversampleV are not supported (but perhaps not so necessary with this rasterizer).
@@ -33,14 +43,35 @@
#include FT_SYNTHESIS_H // <freetype/ftsynth.h>
#ifdef _MSC_VER
#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
#pragma warning (push)
#pragma warning (disable: 4505) // unreferenced local function has been removed (stb stuff)
#pragma warning (disable: 26812) // [Static Analyzer] The enum type 'xxx' is unscoped. Prefer 'enum class' over 'enum' (Enum.3).
#endif
#if defined(__GNUC__)
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpragmas" // warning: unknown option after '#pragma GCC diagnostic' kind
#pragma GCC diagnostic ignored "-Wunused-function" // warning: 'xxxx' defined but not used
#pragma GCC diagnostic ignored "-Wsubobject-linkage" // warning: 'xxxx' has a field 'xxxx' whose type uses the anonymous namespace
#endif
//-------------------------------------------------------------------------
// Data
//-------------------------------------------------------------------------
// Default memory allocators
static void* ImGuiFreeTypeDefaultAllocFunc(size_t size, void* user_data) { IM_UNUSED(user_data); return IM_ALLOC(size); }
static void ImGuiFreeTypeDefaultFreeFunc(void* ptr, void* user_data) { IM_UNUSED(user_data); IM_FREE(ptr); }
// Current memory allocators
static void* (*GImGuiFreeTypeAllocFunc)(size_t size, void* user_data) = ImGuiFreeTypeDefaultAllocFunc;
static void (*GImGuiFreeTypeFreeFunc)(void* ptr, void* user_data) = ImGuiFreeTypeDefaultFreeFunc;
static void* GImGuiFreeTypeAllocatorUserData = nullptr;
//-------------------------------------------------------------------------
// Code
//-------------------------------------------------------------------------
namespace
{
// Glyph metrics:
@@ -74,7 +105,7 @@ namespace
// | |
// |------------- advanceX ----------->|
/// A structure that describe a glyph.
// A structure that describe a glyph.
struct GlyphInfo
{
int Width; // Glyph's width in pixels.
@@ -82,6 +113,7 @@ namespace
FT_Int OffsetX; // The distance from the origin ("pen position") to the left of the glyph.
FT_Int OffsetY; // The distance from the origin to the top of the glyph. This is usually a value < 0.
float AdvanceX; // The distance from the origin to the origin of the next glyph. This is usually a value > 0.
bool IsColored; // The glyph is colored
};
// Font parameters and metrics.
@@ -104,7 +136,7 @@ namespace
void SetPixelHeight(int pixel_height); // Change font pixel size. All following calls to RasterizeGlyph() will use this size
const FT_Glyph_Metrics* LoadGlyph(uint32_t in_codepoint);
const FT_Bitmap* RenderGlyphAndGetInfo(GlyphInfo* out_glyph_info);
void BlitGlyph(const FT_Bitmap* ft_bitmap, uint8_t* dst, uint32_t dst_pitch, unsigned char* multiply_table = NULL);
void BlitGlyph(const FT_Bitmap* ft_bitmap, uint32_t* dst, uint32_t dst_pitch, unsigned char* multiply_table = nullptr);
~FreeTypeFont() { CloseFont(); }
// [Internals]
@@ -118,7 +150,7 @@ namespace
// From SDL_ttf: Handy routines for converting from fixed point
#define FT_CEIL(X) (((X + 63) & -64) / 64)
bool FreeTypeFont::InitFont(FT_Library ft_library, const ImFontConfig& cfg, unsigned int extra_user_flags)
bool FreeTypeFont::InitFont(FT_Library ft_library, const ImFontConfig& cfg, unsigned int extra_font_builder_flags)
{
FT_Error error = FT_New_Memory_Face(ft_library, (uint8_t*)cfg.FontData, (uint32_t)cfg.FontDataSize, (uint32_t)cfg.FontNo, &Face);
if (error != 0)
@@ -127,30 +159,37 @@ namespace
if (error != 0)
return false;
memset(&Info, 0, sizeof(Info));
SetPixelHeight((uint32_t)cfg.SizePixels);
// Convert to FreeType flags (NB: Bold and Oblique are processed separately)
UserFlags = cfg.RasterizerFlags | extra_user_flags;
LoadFlags = FT_LOAD_NO_BITMAP;
if (UserFlags & ImGuiFreeType::NoHinting)
UserFlags = cfg.FontBuilderFlags | extra_font_builder_flags;
LoadFlags = 0;
if ((UserFlags & ImGuiFreeTypeBuilderFlags_Bitmap) == 0)
LoadFlags |= FT_LOAD_NO_BITMAP;
if (UserFlags & ImGuiFreeTypeBuilderFlags_NoHinting)
LoadFlags |= FT_LOAD_NO_HINTING;
if (UserFlags & ImGuiFreeType::NoAutoHint)
if (UserFlags & ImGuiFreeTypeBuilderFlags_NoAutoHint)
LoadFlags |= FT_LOAD_NO_AUTOHINT;
if (UserFlags & ImGuiFreeType::ForceAutoHint)
if (UserFlags & ImGuiFreeTypeBuilderFlags_ForceAutoHint)
LoadFlags |= FT_LOAD_FORCE_AUTOHINT;
if (UserFlags & ImGuiFreeType::LightHinting)
if (UserFlags & ImGuiFreeTypeBuilderFlags_LightHinting)
LoadFlags |= FT_LOAD_TARGET_LIGHT;
else if (UserFlags & ImGuiFreeType::MonoHinting)
else if (UserFlags & ImGuiFreeTypeBuilderFlags_MonoHinting)
LoadFlags |= FT_LOAD_TARGET_MONO;
else
LoadFlags |= FT_LOAD_TARGET_NORMAL;
if (UserFlags & ImGuiFreeType::Monochrome)
if (UserFlags & ImGuiFreeTypeBuilderFlags_Monochrome)
RenderMode = FT_RENDER_MODE_MONO;
else
RenderMode = FT_RENDER_MODE_NORMAL;
if (UserFlags & ImGuiFreeTypeBuilderFlags_LoadColor)
LoadFlags |= FT_LOAD_COLOR;
memset(&Info, 0, sizeof(Info));
SetPixelHeight((uint32_t)cfg.SizePixels);
return true;
}
@@ -159,7 +198,7 @@ namespace
if (Face)
{
FT_Done_Face(Face);
Face = NULL;
Face = nullptr;
}
}
@@ -169,7 +208,7 @@ namespace
// is a maximum height of an any given glyph, i.e. it's the sum of font's ascender and descender. Seems strange to me.
// NB: FT_Set_Pixel_Sizes() doesn't seem to get us the same result.
FT_Size_RequestRec req;
req.type = FT_SIZE_REQUEST_TYPE_REAL_DIM;
req.type = (UserFlags & ImGuiFreeTypeBuilderFlags_Bitmap) ? FT_SIZE_REQUEST_TYPE_NOMINAL : FT_SIZE_REQUEST_TYPE_REAL_DIM;
req.width = 0;
req.height = (uint32_t)pixel_height * 64;
req.horiResolution = 0;
@@ -190,19 +229,25 @@ namespace
{
uint32_t glyph_index = FT_Get_Char_Index(Face, codepoint);
if (glyph_index == 0)
return NULL;
return nullptr;
// If this crash for you: FreeType 2.11.0 has a crash bug on some bitmap/colored fonts.
// - https://gitlab.freedesktop.org/freetype/freetype/-/issues/1076
// - https://github.com/ocornut/imgui/issues/4567
// - https://github.com/ocornut/imgui/issues/4566
// You can use FreeType 2.10, or the patched version of 2.11.0 in VcPkg, or probably any upcoming FreeType version.
FT_Error error = FT_Load_Glyph(Face, glyph_index, LoadFlags);
if (error)
return NULL;
return nullptr;
// Need an outline for this to work
FT_GlyphSlot slot = Face->glyph;
IM_ASSERT(slot->format == FT_GLYPH_FORMAT_OUTLINE);
IM_ASSERT(slot->format == FT_GLYPH_FORMAT_OUTLINE || slot->format == FT_GLYPH_FORMAT_BITMAP);
// Apply convenience transform (this is not picking from real "Bold"/"Italic" fonts! Merely applying FreeType helper transform. Oblique == Slanting)
if (UserFlags & ImGuiFreeType::Bold)
if (UserFlags & ImGuiFreeTypeBuilderFlags_Bold)
FT_GlyphSlot_Embolden(slot);
if (UserFlags & ImGuiFreeType::Oblique)
if (UserFlags & ImGuiFreeTypeBuilderFlags_Oblique)
{
FT_GlyphSlot_Oblique(slot);
//FT_BBox bbox;
@@ -219,7 +264,7 @@ namespace
FT_GlyphSlot slot = Face->glyph;
FT_Error error = FT_Render_Glyph(slot, RenderMode);
if (error != 0)
return NULL;
return nullptr;
FT_Bitmap* ft_bitmap = &Face->glyph->bitmap;
out_glyph_info->Width = (int)ft_bitmap->width;
@@ -227,13 +272,14 @@ namespace
out_glyph_info->OffsetX = Face->glyph->bitmap_left;
out_glyph_info->OffsetY = -Face->glyph->bitmap_top;
out_glyph_info->AdvanceX = (float)FT_CEIL(slot->advance.x);
out_glyph_info->IsColored = (ft_bitmap->pixel_mode == FT_PIXEL_MODE_BGRA);
return ft_bitmap;
}
void FreeTypeFont::BlitGlyph(const FT_Bitmap* ft_bitmap, uint8_t* dst, uint32_t dst_pitch, unsigned char* multiply_table)
void FreeTypeFont::BlitGlyph(const FT_Bitmap* ft_bitmap, uint32_t* dst, uint32_t dst_pitch, unsigned char* multiply_table)
{
IM_ASSERT(ft_bitmap != NULL);
IM_ASSERT(ft_bitmap != nullptr);
const uint32_t w = ft_bitmap->width;
const uint32_t h = ft_bitmap->rows;
const uint8_t* src = ft_bitmap->buffer;
@@ -243,16 +289,17 @@ namespace
{
case FT_PIXEL_MODE_GRAY: // Grayscale image, 1 byte per pixel.
{
if (multiply_table == NULL)
if (multiply_table == nullptr)
{
for (uint32_t y = 0; y < h; y++, src += src_pitch, dst += dst_pitch)
memcpy(dst, src, w);
for (uint32_t x = 0; x < w; x++)
dst[x] = IM_COL32(255, 255, 255, src[x]);
}
else
{
for (uint32_t y = 0; y < h; y++, src += src_pitch, dst += dst_pitch)
for (uint32_t x = 0; x < w; x++)
dst[x] = multiply_table[src[x]];
dst[x] = IM_COL32(255, 255, 255, multiply_table[src[x]]);
}
break;
}
@@ -268,16 +315,43 @@ namespace
{
if ((x & 7) == 0)
bits = *bits_ptr++;
dst[x] = (bits & 0x80) ? color1 : color0;
dst[x] = IM_COL32(255, 255, 255, (bits & 0x80) ? color1 : color0);
}
}
break;
}
case FT_PIXEL_MODE_BGRA:
{
// FIXME: Converting pre-multiplied alpha to straight. Doesn't smell good.
#define DE_MULTIPLY(color, alpha) (ImU32)(255.0f * (float)color / (float)alpha + 0.5f)
if (multiply_table == nullptr)
{
for (uint32_t y = 0; y < h; y++, src += src_pitch, dst += dst_pitch)
for (uint32_t x = 0; x < w; x++)
{
uint8_t r = src[x * 4 + 2], g = src[x * 4 + 1], b = src[x * 4], a = src[x * 4 + 3];
dst[x] = IM_COL32(DE_MULTIPLY(r, a), DE_MULTIPLY(g, a), DE_MULTIPLY(b, a), a);
}
}
else
{
for (uint32_t y = 0; y < h; y++, src += src_pitch, dst += dst_pitch)
{
for (uint32_t x = 0; x < w; x++)
{
uint8_t r = src[x * 4 + 2], g = src[x * 4 + 1], b = src[x * 4], a = src[x * 4 + 3];
dst[x] = IM_COL32(multiply_table[DE_MULTIPLY(r, a)], multiply_table[DE_MULTIPLY(g, a)], multiply_table[DE_MULTIPLY(b, a)], multiply_table[a]);
}
}
}
#undef DE_MULTIPLY
break;
}
default:
IM_ASSERT(0 && "FreeTypeFont::BlitGlyph(): Unknown bitmap pixel mode!");
}
}
}
} // namespace
#ifndef STB_RECT_PACK_IMPLEMENTATION // in case the user already have an implementation in the _same_ compilation unit (e.g. unity builds)
#ifndef IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
@@ -296,7 +370,9 @@ struct ImFontBuildSrcGlyphFT
{
GlyphInfo Info;
uint32_t Codepoint;
unsigned char* BitmapData; // Point within one of the dst_tmp_bitmap_buffers[] array
unsigned int* BitmapData; // Point within one of the dst_tmp_bitmap_buffers[] array
ImFontBuildSrcGlyphFT() { memset((void*)this, 0, sizeof(*this)); }
};
struct ImFontBuildSrcDataFT
@@ -320,20 +396,21 @@ struct ImFontBuildDstDataFT
ImBitVector GlyphsSet; // This is used to resolve collision when multiple sources are merged into a same destination font.
};
bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, unsigned int extra_flags)
bool ImFontAtlasBuildWithFreeTypeEx(FT_Library ft_library, ImFontAtlas* atlas, unsigned int extra_flags)
{
IM_ASSERT(atlas->ConfigData.Size > 0);
ImFontAtlasBuildInit(atlas);
// Clear atlas
atlas->TexID = (ImTextureID)NULL;
atlas->TexID = (ImTextureID)nullptr;
atlas->TexWidth = atlas->TexHeight = 0;
atlas->TexUvScale = ImVec2(0.0f, 0.0f);
atlas->TexUvWhitePixel = ImVec2(0.0f, 0.0f);
atlas->ClearTexData();
// Temporary storage for building
bool src_load_color = false;
ImVector<ImFontBuildSrcDataFT> src_tmp_array;
ImVector<ImFontBuildDstDataFT> dst_tmp_array;
src_tmp_array.resize(atlas->ConfigData.Size);
@@ -363,10 +440,16 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
return false;
// Measure highest codepoints
src_load_color |= (cfg.FontBuilderFlags & ImGuiFreeTypeBuilderFlags_LoadColor) != 0;
ImFontBuildDstDataFT& dst_tmp = dst_tmp_array[src_tmp.DstIndex];
src_tmp.SrcRanges = cfg.GlyphRanges ? cfg.GlyphRanges : atlas->GetGlyphRangesDefault();
for (const ImWchar* src_range = src_tmp.SrcRanges; src_range[0] && src_range[1]; src_range += 2)
{
// Check for valid range. This may also help detect *some* dangling pointers, because a common
// user error is to setup ImFontConfig::GlyphRanges with a pointer to data that isn't persistent.
IM_ASSERT(src_range[0] <= src_range[1]);
src_tmp.GlyphsHighest = ImMax(src_tmp.GlyphsHighest, (int)src_range[1]);
}
dst_tmp.SrcCount++;
dst_tmp.GlyphsHighest = ImMax(dst_tmp.GlyphsHighest, src_tmp.GlyphsHighest);
}
@@ -414,7 +497,6 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
if (entries_32 & ((ImU32)1 << bit_n))
{
ImFontBuildSrcGlyphFT src_glyph;
memset(&src_glyph, 0, sizeof(src_glyph));
src_glyph.Codepoint = (ImWchar)(((it - it_begin) << 5) + bit_n);
//src_glyph.GlyphIndex = 0; // FIXME-OPT: We had this info in the previous step and lost it..
src_tmp.GlyphsList.push_back(src_glyph);
@@ -435,7 +517,7 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
// Allocate temporary rasterization data buffers.
// We could not find a way to retrieve accurate glyph size without rendering them.
// (e.g. slot->metrics->width not always matching bitmap->width, especially considering the Oblique transform)
// We allocate in chunks of 256 KB to not waste too much extra memory ahead. Hopefully users of FreeType won't find the temporary allocations.
// We allocate in chunks of 256 KB to not waste too much extra memory ahead. Hopefully users of FreeType won't mind the temporary allocations.
const int BITMAP_BUFFERS_CHUNK_SIZE = 256 * 1024;
int buf_bitmap_current_used_bytes = 0;
ImVector<unsigned char*> buf_bitmap_buffers;
@@ -468,25 +550,27 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
ImFontBuildSrcGlyphFT& src_glyph = src_tmp.GlyphsList[glyph_i];
const FT_Glyph_Metrics* metrics = src_tmp.Font.LoadGlyph(src_glyph.Codepoint);
if (metrics == NULL)
if (metrics == nullptr)
continue;
// Render glyph into a bitmap (currently held by FreeType)
const FT_Bitmap* ft_bitmap = src_tmp.Font.RenderGlyphAndGetInfo(&src_glyph.Info);
IM_ASSERT(ft_bitmap);
if (ft_bitmap == nullptr)
continue;
// Allocate new temporary chunk if needed
const int bitmap_size_in_bytes = src_glyph.Info.Width * src_glyph.Info.Height;
const int bitmap_size_in_bytes = src_glyph.Info.Width * src_glyph.Info.Height * 4;
if (buf_bitmap_current_used_bytes + bitmap_size_in_bytes > BITMAP_BUFFERS_CHUNK_SIZE)
{
buf_bitmap_current_used_bytes = 0;
buf_bitmap_buffers.push_back((unsigned char*)IM_ALLOC(BITMAP_BUFFERS_CHUNK_SIZE));
}
IM_ASSERT(buf_bitmap_current_used_bytes + bitmap_size_in_bytes <= BITMAP_BUFFERS_CHUNK_SIZE); // We could probably allocate custom-sized buffer instead.
// Blit rasterized pixels to our temporary buffer and keep a pointer to it.
src_glyph.BitmapData = buf_bitmap_buffers.back() + buf_bitmap_current_used_bytes;
src_glyph.BitmapData = (unsigned int*)(buf_bitmap_buffers.back() + buf_bitmap_current_used_bytes);
buf_bitmap_current_used_bytes += bitmap_size_in_bytes;
src_tmp.Font.BlitGlyph(ft_bitmap, src_glyph.BitmapData, src_glyph.Info.Width * 1, multiply_enabled ? multiply_table : NULL);
src_tmp.Font.BlitGlyph(ft_bitmap, src_glyph.BitmapData, src_glyph.Info.Width, multiply_enabled ? multiply_table : nullptr);
src_tmp.Rects[glyph_i].w = (stbrp_coord)(src_glyph.Info.Width + padding);
src_tmp.Rects[glyph_i].h = (stbrp_coord)(src_glyph.Info.Height + padding);
@@ -511,7 +595,7 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
ImVector<stbrp_node> pack_nodes;
pack_nodes.resize(num_nodes_for_packing_algorithm);
stbrp_context pack_context;
stbrp_init_target(&pack_context, atlas->TexWidth, TEX_HEIGHT_MAX, pack_nodes.Data, pack_nodes.Size);
stbrp_init_target(&pack_context, atlas->TexWidth - atlas->TexGlyphPadding, TEX_HEIGHT_MAX - atlas->TexGlyphPadding, pack_nodes.Data, pack_nodes.Size);
ImFontAtlasBuildPackCustomRects(atlas, &pack_context);
// 6. Pack each source font. No rendering yet, we are working with rectangles in an infinitely tall texture at this point.
@@ -533,11 +617,22 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
// 7. Allocate texture
atlas->TexHeight = (atlas->Flags & ImFontAtlasFlags_NoPowerOfTwoHeight) ? (atlas->TexHeight + 1) : ImUpperPowerOfTwo(atlas->TexHeight);
atlas->TexUvScale = ImVec2(1.0f / atlas->TexWidth, 1.0f / atlas->TexHeight);
atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(atlas->TexWidth * atlas->TexHeight);
memset(atlas->TexPixelsAlpha8, 0, atlas->TexWidth * atlas->TexHeight);
if (src_load_color)
{
size_t tex_size = (size_t)atlas->TexWidth * atlas->TexHeight * 4;
atlas->TexPixelsRGBA32 = (unsigned int*)IM_ALLOC(tex_size);
memset(atlas->TexPixelsRGBA32, 0, tex_size);
}
else
{
size_t tex_size = (size_t)atlas->TexWidth * atlas->TexHeight * 1;
atlas->TexPixelsAlpha8 = (unsigned char*)IM_ALLOC(tex_size);
memset(atlas->TexPixelsAlpha8, 0, tex_size);
}
// 8. Copy rasterized font characters back into the main texture
// 9. Setup ImFont and glyphs for runtime
bool tex_use_colors = false;
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
{
ImFontBuildSrcDataFT& src_tmp = src_tmp_array[src_i];
@@ -571,14 +666,6 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
const int tx = pack_rect.x + padding;
const int ty = pack_rect.y + padding;
// Blit from temporary buffer to final texture
size_t blit_src_stride = (size_t)src_glyph.Info.Width;
size_t blit_dst_stride = (size_t)atlas->TexWidth;
unsigned char* blit_src = src_glyph.BitmapData;
unsigned char* blit_dst = atlas->TexPixelsAlpha8 + (ty * blit_dst_stride) + tx;
for (int y = info.Height; y > 0; y--, blit_dst += blit_dst_stride, blit_src += blit_src_stride)
memcpy(blit_dst, blit_src, blit_src_stride);
// Register glyph
float x0 = info.OffsetX + font_off_x;
float y0 = info.OffsetY + font_off_y;
@@ -589,70 +676,85 @@ bool ImFontAtlasBuildWithFreeType(FT_Library ft_library, ImFontAtlas* atlas, uns
float u1 = (tx + info.Width) / (float)atlas->TexWidth;
float v1 = (ty + info.Height) / (float)atlas->TexHeight;
dst_font->AddGlyph(&cfg, (ImWchar)src_glyph.Codepoint, x0, y0, x1, y1, u0, v0, u1, v1, info.AdvanceX);
ImFontGlyph* dst_glyph = &dst_font->Glyphs.back();
IM_ASSERT(dst_glyph->Codepoint == src_glyph.Codepoint);
if (src_glyph.Info.IsColored)
dst_glyph->Colored = tex_use_colors = true;
// Blit from temporary buffer to final texture
size_t blit_src_stride = (size_t)src_glyph.Info.Width;
size_t blit_dst_stride = (size_t)atlas->TexWidth;
unsigned int* blit_src = src_glyph.BitmapData;
if (atlas->TexPixelsAlpha8 != nullptr)
{
unsigned char* blit_dst = atlas->TexPixelsAlpha8 + (ty * blit_dst_stride) + tx;
for (int y = 0; y < info.Height; y++, blit_dst += blit_dst_stride, blit_src += blit_src_stride)
for (int x = 0; x < info.Width; x++)
blit_dst[x] = (unsigned char)((blit_src[x] >> IM_COL32_A_SHIFT) & 0xFF);
}
else
{
unsigned int* blit_dst = atlas->TexPixelsRGBA32 + (ty * blit_dst_stride) + tx;
for (int y = 0; y < info.Height; y++, blit_dst += blit_dst_stride, blit_src += blit_src_stride)
for (int x = 0; x < info.Width; x++)
blit_dst[x] = blit_src[x];
}
}
src_tmp.Rects = NULL;
src_tmp.Rects = nullptr;
}
atlas->TexPixelsUseColors = tex_use_colors;
// Cleanup
for (int buf_i = 0; buf_i < buf_bitmap_buffers.Size; buf_i++)
IM_FREE(buf_bitmap_buffers[buf_i]);
for (int src_i = 0; src_i < src_tmp_array.Size; src_i++)
src_tmp_array[src_i].~ImFontBuildSrcDataFT();
src_tmp_array.clear_destruct();
ImFontAtlasBuildFinish(atlas);
return true;
}
// Default memory allocators
static void* ImFreeTypeDefaultAllocFunc(size_t size, void* user_data) { IM_UNUSED(user_data); return IM_ALLOC(size); }
static void ImFreeTypeDefaultFreeFunc(void* ptr, void* user_data) { IM_UNUSED(user_data); IM_FREE(ptr); }
// Current memory allocators
static void* (*GImFreeTypeAllocFunc)(size_t size, void* user_data) = ImFreeTypeDefaultAllocFunc;
static void (*GImFreeTypeFreeFunc)(void* ptr, void* user_data) = ImFreeTypeDefaultFreeFunc;
static void* GImFreeTypeAllocatorUserData = NULL;
// FreeType memory allocation callbacks
static void* FreeType_Alloc(FT_Memory /*memory*/, long size)
{
return GImFreeTypeAllocFunc((size_t)size, GImFreeTypeAllocatorUserData);
return GImGuiFreeTypeAllocFunc((size_t)size, GImGuiFreeTypeAllocatorUserData);
}
static void FreeType_Free(FT_Memory /*memory*/, void* block)
{
GImFreeTypeFreeFunc(block, GImFreeTypeAllocatorUserData);
GImGuiFreeTypeFreeFunc(block, GImGuiFreeTypeAllocatorUserData);
}
static void* FreeType_Realloc(FT_Memory /*memory*/, long cur_size, long new_size, void* block)
{
// Implement realloc() as we don't ask user to provide it.
if (block == NULL)
return GImFreeTypeAllocFunc((size_t)new_size, GImFreeTypeAllocatorUserData);
if (block == nullptr)
return GImGuiFreeTypeAllocFunc((size_t)new_size, GImGuiFreeTypeAllocatorUserData);
if (new_size == 0)
{
GImFreeTypeFreeFunc(block, GImFreeTypeAllocatorUserData);
return NULL;
GImGuiFreeTypeFreeFunc(block, GImGuiFreeTypeAllocatorUserData);
return nullptr;
}
if (new_size > cur_size)
{
void* new_block = GImFreeTypeAllocFunc((size_t)new_size, GImFreeTypeAllocatorUserData);
void* new_block = GImGuiFreeTypeAllocFunc((size_t)new_size, GImGuiFreeTypeAllocatorUserData);
memcpy(new_block, block, (size_t)cur_size);
GImFreeTypeFreeFunc(block, GImFreeTypeAllocatorUserData);
GImGuiFreeTypeFreeFunc(block, GImGuiFreeTypeAllocatorUserData);
return new_block;
}
return block;
}
bool ImGuiFreeType::BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags)
static bool ImFontAtlasBuildWithFreeType(ImFontAtlas* atlas)
{
// FreeType memory management: https://www.freetype.org/freetype2/docs/design/design-4.html
FT_MemoryRec_ memory_rec = {};
memory_rec.user = NULL;
memory_rec.user = nullptr;
memory_rec.alloc = &FreeType_Alloc;
memory_rec.free = &FreeType_Free;
memory_rec.realloc = &FreeType_Realloc;
@@ -666,15 +768,30 @@ bool ImGuiFreeType::BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags)
// If you don't call FT_Add_Default_Modules() the rest of code may work, but FreeType won't use our custom allocator.
FT_Add_Default_Modules(ft_library);
bool ret = ImFontAtlasBuildWithFreeType(ft_library, atlas, extra_flags);
bool ret = ImFontAtlasBuildWithFreeTypeEx(ft_library, atlas, atlas->FontBuilderFlags);
FT_Done_Library(ft_library);
return ret;
}
const ImFontBuilderIO* ImGuiFreeType::GetBuilderForFreeType()
{
static ImFontBuilderIO io;
io.FontBuilder_Build = ImFontAtlasBuildWithFreeType;
return &io;
}
void ImGuiFreeType::SetAllocatorFunctions(void* (*alloc_func)(size_t sz, void* user_data), void (*free_func)(void* ptr, void* user_data), void* user_data)
{
GImFreeTypeAllocFunc = alloc_func;
GImFreeTypeFreeFunc = free_func;
GImFreeTypeAllocatorUserData = user_data;
GImGuiFreeTypeAllocFunc = alloc_func;
GImGuiFreeTypeFreeFunc = free_func;
GImGuiFreeTypeAllocatorUserData = user_data;
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
#ifdef _MSC_VER
#pragma warning (pop)
#endif
3rdparty/imgui/misc/freetype/imgui_freetype.h
Vendored
+41 -27
View File
@@ -1,36 +1,50 @@
// dear imgui: wrapper to use FreeType (instead of stb_truetype)
// Get latest version at https://github.com/ocornut/imgui/tree/master/misc/freetype
// Original code by @Vuhdo (Aleksei Skriabin), maintained by @ocornut
// dear imgui: FreeType font builder (used as a replacement for the stb_truetype builder)
// (headers)
#pragma once
#include "imgui.h" // IMGUI_API, ImFontAtlas
#include "imgui.h" // IMGUI_API
// Forward declarations
struct ImFontAtlas;
struct ImFontBuilderIO;
// Hinting greatly impacts visuals (and glyph sizes).
// - By default, hinting is enabled and the font's native hinter is preferred over the auto-hinter.
// - When disabled, FreeType generates blurrier glyphs, more or less matches the stb_truetype.h
// - The Default hinting mode usually looks good, but may distort glyphs in an unusual way.
// - The Light hinting mode generates fuzzier glyphs but better matches Microsoft's rasterizer.
// You can set those flags globaly in ImFontAtlas::FontBuilderFlags
// You can set those flags on a per font basis in ImFontConfig::FontBuilderFlags
enum ImGuiFreeTypeBuilderFlags
{
ImGuiFreeTypeBuilderFlags_NoHinting = 1 << 0, // Disable hinting. This generally generates 'blurrier' bitmap glyphs when the glyph are rendered in any of the anti-aliased modes.
ImGuiFreeTypeBuilderFlags_NoAutoHint = 1 << 1, // Disable auto-hinter.
ImGuiFreeTypeBuilderFlags_ForceAutoHint = 1 << 2, // Indicates that the auto-hinter is preferred over the font's native hinter.
ImGuiFreeTypeBuilderFlags_LightHinting = 1 << 3, // A lighter hinting algorithm for gray-level modes. Many generated glyphs are fuzzier but better resemble their original shape. This is achieved by snapping glyphs to the pixel grid only vertically (Y-axis), as is done by Microsoft's ClearType and Adobe's proprietary font renderer. This preserves inter-glyph spacing in horizontal text.
ImGuiFreeTypeBuilderFlags_MonoHinting = 1 << 4, // Strong hinting algorithm that should only be used for monochrome output.
ImGuiFreeTypeBuilderFlags_Bold = 1 << 5, // Styling: Should we artificially embolden the font?
ImGuiFreeTypeBuilderFlags_Oblique = 1 << 6, // Styling: Should we slant the font, emulating italic style?
ImGuiFreeTypeBuilderFlags_Monochrome = 1 << 7, // Disable anti-aliasing. Combine this with MonoHinting for best results!
ImGuiFreeTypeBuilderFlags_LoadColor = 1 << 8, // Enable FreeType color-layered glyphs
ImGuiFreeTypeBuilderFlags_Bitmap = 1 << 9 // Enable FreeType bitmap glyphs
};
namespace ImGuiFreeType
{
// Hinting greatly impacts visuals (and glyph sizes).
// When disabled, FreeType generates blurrier glyphs, more or less matches the stb's output.
// The Default hinting mode usually looks good, but may distort glyphs in an unusual way.
// The Light hinting mode generates fuzzier glyphs but better matches Microsoft's rasterizer.
// This is automatically assigned when using '#define IMGUI_ENABLE_FREETYPE'.
// If you need to dynamically select between multiple builders:
// - you can manually assign this builder with 'atlas->FontBuilderIO = ImGuiFreeType::GetBuilderForFreeType()'
// - prefer deep-copying this into your own ImFontBuilderIO instance if you use hot-reloading that messes up static data.
IMGUI_API const ImFontBuilderIO* GetBuilderForFreeType();
// You can set those flags on a per font basis in ImFontConfig::RasterizerFlags.
// Use the 'extra_flags' parameter of BuildFontAtlas() to force a flag on all your fonts.
enum RasterizerFlags
{
// By default, hinting is enabled and the font's native hinter is preferred over the auto-hinter.
NoHinting = 1 << 0, // Disable hinting. This generally generates 'blurrier' bitmap glyphs when the glyph are rendered in any of the anti-aliased modes.
NoAutoHint = 1 << 1, // Disable auto-hinter.
ForceAutoHint = 1 << 2, // Indicates that the auto-hinter is preferred over the font's native hinter.
LightHinting = 1 << 3, // A lighter hinting algorithm for gray-level modes. Many generated glyphs are fuzzier but better resemble their original shape. This is achieved by snapping glyphs to the pixel grid only vertically (Y-axis), as is done by Microsoft's ClearType and Adobe's proprietary font renderer. This preserves inter-glyph spacing in horizontal text.
MonoHinting = 1 << 4, // Strong hinting algorithm that should only be used for monochrome output.
Bold = 1 << 5, // Styling: Should we artificially embolden the font?
Oblique = 1 << 6, // Styling: Should we slant the font, emulating italic style?
Monochrome = 1 << 7 // Disable anti-aliasing. Combine this with MonoHinting for best results!
};
// Override allocators. By default ImGuiFreeType will use IM_ALLOC()/IM_FREE()
// However, as FreeType does lots of allocations we provide a way for the user to redirect it to a separate memory heap if desired.
IMGUI_API void SetAllocatorFunctions(void* (*alloc_func)(size_t sz, void* user_data), void (*free_func)(void* ptr, void* user_data), void* user_data = nullptr);
IMGUI_API bool BuildFontAtlas(ImFontAtlas* atlas, unsigned int extra_flags = 0);
// By default ImGuiFreeType will use IM_ALLOC()/IM_FREE().
// However, as FreeType does lots of allocations we provide a way for the user to redirect it to a separate memory heap if desired:
IMGUI_API void SetAllocatorFunctions(void* (*alloc_func)(size_t sz, void* user_data), void (*free_func)(void* ptr, void* user_data), void* user_data = NULL);
// Obsolete names (will be removed soon)
// Prefer using '#define IMGUI_ENABLE_FREETYPE'
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
static inline bool BuildFontAtlas(ImFontAtlas* atlas, unsigned int flags = 0) { atlas->FontBuilderIO = GetBuilderForFreeType(); atlas->FontBuilderFlags = flags; return atlas->Build(); }
#endif
}
3rdparty/imgui/misc/natvis/README.txt
Vendored
-4
View File
@@ -1,4 +0,0 @@
Natvis file to describe dear imgui types in the Visual Studio debugger.
With this, types like ImVector<> will be displayed nicely in the debugger.
You can include this file a Visual Studio project file, or install it in Visual Studio folder.
3rdparty/imgui/misc/single_file/imgui_single_file.h
Vendored
+12
View File
@@ -7,11 +7,23 @@
// #define IMGUI_IMPLEMENTATION
// Before you include this file in *one* C++ file to create the implementation.
// Using this in your project will leak the contents of imgui_internal.h and ImVec2 operators in this compilation unit.
#ifdef IMGUI_IMPLEMENTATION
#define IMGUI_DEFINE_MATH_OPERATORS
#endif
#include "../../imgui.h"
#ifdef IMGUI_ENABLE_FREETYPE
#include "../../misc/freetype/imgui_freetype.h"
#endif
#ifdef IMGUI_IMPLEMENTATION
#include "../../imgui.cpp"
#include "../../imgui_demo.cpp"
#include "../../imgui_draw.cpp"
#include "../../imgui_tables.cpp"
#include "../../imgui_widgets.cpp"
#ifdef IMGUI_ENABLE_FREETYPE
#include "../../misc/freetype/imgui_freetype.cpp"
#endif
#endif