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Robert 2023-06-30 02:25:29 +02:00
parent c2aa9c0f31
commit f99ae219bb
20 changed files with 61916 additions and 6 deletions
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.gitignore vendored
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.vscode/
build/
*.ini

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gui/3rdparty/imgui/CMakeLists.txt vendored Normal file
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set(IMGUI_SOURCES
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_demo.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_draw.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_impl_sdl3.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_impl_sdlrenderer3.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_tables.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui_widgets.cpp"
"${CMAKE_CURRENT_LIST_DIR}/src/imgui.cpp"
PARENT_SCOPE
)
set(IMGUI_INCLUDE_DIR ${CMAKE_CURRENT_LIST_DIR}/include PARENT_SCOPE)

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The MIT License (MIT)
Copyright (c) 2014-2023 Omar Cornut
Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.

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gui/3rdparty/imgui/include/imconfig.h vendored Normal file
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//-----------------------------------------------------------------------------
// COMPILE-TIME OPTIONS FOR DEAR IMGUI
// Runtime options (clipboard callbacks, enabling various features, etc.) can generally be set via the ImGuiIO structure.
// You can use ImGui::SetAllocatorFunctions() before calling ImGui::CreateContext() to rewire memory allocation functions.
//-----------------------------------------------------------------------------
// A) You may edit imconfig.h (and not overwrite it when updating Dear ImGui, or maintain a patch/rebased branch with your modifications to it)
// B) or '#define IMGUI_USER_CONFIG "my_imgui_config.h"' in your project and then add directives in your own file without touching this template.
//-----------------------------------------------------------------------------
// You need to make sure that configuration settings are defined consistently _everywhere_ Dear ImGui is used, which include the imgui*.cpp
// files but also _any_ of your code that uses Dear ImGui. This is because some compile-time options have an affect on data structures.
// Defining those options in imconfig.h will ensure every compilation unit gets to see the same data structure layouts.
// Call IMGUI_CHECKVERSION() from your .cpp files to verify that the data structures your files are using are matching the ones imgui.cpp is using.
//-----------------------------------------------------------------------------
#pragma once
//---- Define assertion handler. Defaults to calling assert().
// If your macro uses multiple statements, make sure is enclosed in a 'do { .. } while (0)' block so it can be used as a single statement.
//#define IM_ASSERT(_EXPR) MyAssert(_EXPR)
//#define IM_ASSERT(_EXPR) ((void)(_EXPR)) // Disable asserts
//---- Define attributes of all API symbols declarations, e.g. for DLL under Windows
// Using Dear ImGui via a shared library is not recommended, because of function call overhead and because we don't guarantee backward nor forward ABI compatibility.
// DLL users: heaps and globals are not shared across DLL boundaries! You will need to call SetCurrentContext() + SetAllocatorFunctions()
// for each static/DLL boundary you are calling from. Read "Context and Memory Allocators" section of imgui.cpp for more details.
//#define IMGUI_API __declspec( dllexport )
//#define IMGUI_API __declspec( dllimport )
//---- Don't define obsolete functions/enums/behaviors. Consider enabling from time to time after updating to avoid using soon-to-be obsolete function/names.
//#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
//#define IMGUI_DISABLE_OBSOLETE_KEYIO // 1.87: disable legacy io.KeyMap[]+io.KeysDown[] in favor io.AddKeyEvent(). This will be folded into IMGUI_DISABLE_OBSOLETE_FUNCTIONS in a few versions.
//---- Disable all of Dear ImGui or don't implement standard windows/tools.
// It is very strongly recommended to NOT disable the demo windows and debug tool during development. They are extremely useful in day to day work. Please read comments in imgui_demo.cpp.
//#define IMGUI_DISABLE // Disable everything: all headers and source files will be empty.
//#define IMGUI_DISABLE_DEMO_WINDOWS // Disable demo windows: ShowDemoWindow()/ShowStyleEditor() will be empty.
//#define IMGUI_DISABLE_DEBUG_TOOLS // Disable metrics/debugger and other debug tools: ShowMetricsWindow(), ShowDebugLogWindow() and ShowStackToolWindow() will be empty (this was called IMGUI_DISABLE_METRICS_WINDOW before 1.88).
//---- Don't implement some functions to reduce linkage requirements.
//#define IMGUI_DISABLE_WIN32_DEFAULT_CLIPBOARD_FUNCTIONS // [Win32] Don't implement default clipboard handler. Won't use and link with OpenClipboard/GetClipboardData/CloseClipboard etc. (user32.lib/.a, kernel32.lib/.a)
//#define IMGUI_ENABLE_WIN32_DEFAULT_IME_FUNCTIONS // [Win32] [Default with Visual Studio] Implement default IME handler (require imm32.lib/.a, auto-link for Visual Studio, -limm32 on command-line for MinGW)
//#define IMGUI_DISABLE_WIN32_DEFAULT_IME_FUNCTIONS // [Win32] [Default with non-Visual Studio compilers] Don't implement default IME handler (won't require imm32.lib/.a)
//#define IMGUI_DISABLE_WIN32_FUNCTIONS // [Win32] Won't use and link with any Win32 function (clipboard, ime).
//#define IMGUI_ENABLE_OSX_DEFAULT_CLIPBOARD_FUNCTIONS // [OSX] Implement default OSX clipboard handler (need to link with '-framework ApplicationServices', this is why this is not the default).
//#define IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS // Don't implement ImFormatString/ImFormatStringV so you can implement them yourself (e.g. if you don't want to link with vsnprintf)
//#define IMGUI_DISABLE_DEFAULT_MATH_FUNCTIONS // Don't implement ImFabs/ImSqrt/ImPow/ImFmod/ImCos/ImSin/ImAcos/ImAtan2 so you can implement them yourself.
//#define IMGUI_DISABLE_FILE_FUNCTIONS // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle at all (replace them with dummies)
//#define IMGUI_DISABLE_DEFAULT_FILE_FUNCTIONS // Don't implement ImFileOpen/ImFileClose/ImFileRead/ImFileWrite and ImFileHandle so you can implement them yourself if you don't want to link with fopen/fclose/fread/fwrite. This will also disable the LogToTTY() function.
//#define IMGUI_DISABLE_DEFAULT_ALLOCATORS // Don't implement default allocators calling malloc()/free() to avoid linking with them. You will need to call ImGui::SetAllocatorFunctions().
//#define IMGUI_DISABLE_SSE // Disable use of SSE intrinsics even if available
//---- Include imgui_user.h at the end of imgui.h as a convenience
//#define IMGUI_INCLUDE_IMGUI_USER_H
//---- Pack colors to BGRA8 instead of RGBA8 (to avoid converting from one to another)
//#define IMGUI_USE_BGRA_PACKED_COLOR
//---- Use 32-bit for ImWchar (default is 16-bit) to support unicode planes 1-16. (e.g. point beyond 0xFFFF like emoticons, dingbats, symbols, shapes, ancient languages, etc...)
//#define IMGUI_USE_WCHAR32
//---- Avoid multiple STB libraries implementations, or redefine path/filenames to prioritize another version
// By default the embedded implementations are declared static and not available outside of Dear ImGui sources files.
//#define IMGUI_STB_TRUETYPE_FILENAME "my_folder/stb_truetype.h"
//#define IMGUI_STB_RECT_PACK_FILENAME "my_folder/stb_rect_pack.h"
//#define IMGUI_STB_SPRINTF_FILENAME "my_folder/stb_sprintf.h" // only used if enabled
//#define IMGUI_DISABLE_STB_TRUETYPE_IMPLEMENTATION
//#define IMGUI_DISABLE_STB_RECT_PACK_IMPLEMENTATION
//---- Use stb_sprintf.h for a faster implementation of vsnprintf instead of the one from libc (unless IMGUI_DISABLE_DEFAULT_FORMAT_FUNCTIONS is defined)
// Compatibility checks of arguments and formats done by clang and GCC will be disabled in order to support the extra formats provided by stb_sprintf.h.
//#define IMGUI_USE_STB_SPRINTF
//---- Use FreeType to build and rasterize the font atlas (instead of stb_truetype which is embedded by default in Dear ImGui)
// Requires FreeType headers to be available in the include path. Requires program to be compiled with 'misc/freetype/imgui_freetype.cpp' (in this repository) + the FreeType library (not provided).
// On Windows you may use vcpkg with 'vcpkg install freetype --triplet=x64-windows' + 'vcpkg integrate install'.
//#define IMGUI_ENABLE_FREETYPE
//---- Use stb_truetype to build and rasterize the font atlas (default)
// The only purpose of this define is if you want force compilation of the stb_truetype backend ALONG with the FreeType backend.
//#define IMGUI_ENABLE_STB_TRUETYPE
//---- Define constructor and implicit cast operators to convert back<>forth between your math types and ImVec2/ImVec4.
// This will be inlined as part of ImVec2 and ImVec4 class declarations.
/*
#define IM_VEC2_CLASS_EXTRA \
constexpr ImVec2(const MyVec2& f) : x(f.x), y(f.y) {} \
operator MyVec2() const { return MyVec2(x,y); }
#define IM_VEC4_CLASS_EXTRA \
constexpr ImVec4(const MyVec4& f) : x(f.x), y(f.y), z(f.z), w(f.w) {} \
operator MyVec4() const { return MyVec4(x,y,z,w); }
*/
//---- ...Or use Dear ImGui's own very basic math operators.
//#define IMGUI_DEFINE_MATH_OPERATORS
//---- Use 32-bit vertex indices (default is 16-bit) is one way to allow large meshes with more than 64K vertices.
// Your renderer backend will need to support it (most example renderer backends support both 16/32-bit indices).
// Another way to allow large meshes while keeping 16-bit indices is to handle ImDrawCmd::VtxOffset in your renderer.
// Read about ImGuiBackendFlags_RendererHasVtxOffset for details.
//#define ImDrawIdx unsigned int
//---- Override ImDrawCallback signature (will need to modify renderer backends accordingly)
//struct ImDrawList;
//struct ImDrawCmd;
//typedef void (*MyImDrawCallback)(const ImDrawList* draw_list, const ImDrawCmd* cmd, void* my_renderer_user_data);
//#define ImDrawCallback MyImDrawCallback
//---- Debug Tools: Macro to break in Debugger
// (use 'Metrics->Tools->Item Picker' to pick widgets with the mouse and break into them for easy debugging.)
//#define IM_DEBUG_BREAK IM_ASSERT(0)
//#define IM_DEBUG_BREAK __debugbreak()
//---- Debug Tools: Enable slower asserts
//#define IMGUI_DEBUG_PARANOID
//---- Tip: You can add extra functions within the ImGui:: namespace, here or in your own headers files.
/*
namespace ImGui
{
void MyFunction(const char* name, const MyMatrix44& v);
}
*/

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// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// (IMPORTANT: SDL 3.0.0 is NOT YET RELEASED. IT IS POSSIBLE THAT ITS SPECS/API WILL CHANGE BEFORE RELEASE)
// Implemented features:
// [X] Platform: Clipboard support.
// [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
// Missing features:
// [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
// [x] Platform: Basic IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct SDL_Window;
struct SDL_Renderer;
typedef union SDL_Event SDL_Event;
IMGUI_IMPL_API bool ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context);
IMGUI_IMPL_API bool ImGui_ImplSDL3_InitForVulkan(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL3_InitForD3D(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL3_InitForMetal(SDL_Window* window);
IMGUI_IMPL_API bool ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDL3_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDL3_NewFrame();
IMGUI_IMPL_API bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event);

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// dear imgui: Renderer Backend for SDL_Renderer for SDL3
// (Requires: SDL 3.0.0+)
// Note how SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want to render any non trivial amount of graphics other than UI,
// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
// it might be difficult to step out of those boundaries.
// Implemented features:
// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// Missing features:
// [ ] Renderer: Multi-viewport support (multiple windows).
#pragma once
#include "imgui.h" // IMGUI_IMPL_API
struct SDL_Renderer;
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer);
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_Shutdown();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_NewFrame();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data);
// Called by Init/NewFrame/Shutdown
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer3_CreateFontsTexture();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_DestroyFontsTexture();
IMGUI_IMPL_API bool ImGui_ImplSDLRenderer3_CreateDeviceObjects();
IMGUI_IMPL_API void ImGui_ImplSDLRenderer3_DestroyDeviceObjects();

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// [DEAR IMGUI]
// This is a slightly modified version of stb_rect_pack.h 1.01.
// Grep for [DEAR IMGUI] to find the changes.
//
// stb_rect_pack.h - v1.01 - public domain - rectangle packing
// Sean Barrett 2014
//
// Useful for e.g. packing rectangular textures into an atlas.
// Does not do rotation.
//
// Before #including,
//
// #define STB_RECT_PACK_IMPLEMENTATION
//
// in the file that you want to have the implementation.
//
// Not necessarily the awesomest packing method, but better than
// the totally naive one in stb_truetype (which is primarily what
// this is meant to replace).
//
// Has only had a few tests run, may have issues.
//
// More docs to come.
//
// No memory allocations; uses qsort() and assert() from stdlib.
// Can override those by defining STBRP_SORT and STBRP_ASSERT.
//
// This library currently uses the Skyline Bottom-Left algorithm.
//
// Please note: better rectangle packers are welcome! Please
// implement them to the same API, but with a different init
// function.
//
// Credits
//
// Library
// Sean Barrett
// Minor features
// Martins Mozeiko
// github:IntellectualKitty
//
// Bugfixes / warning fixes
// Jeremy Jaussaud
// Fabian Giesen
//
// Version history:
//
// 1.01 (2021-07-11) always use large rect mode, expose STBRP__MAXVAL in public section
// 1.00 (2019-02-25) avoid small space waste; gracefully fail too-wide rectangles
// 0.99 (2019-02-07) warning fixes
// 0.11 (2017-03-03) return packing success/fail result
// 0.10 (2016-10-25) remove cast-away-const to avoid warnings
// 0.09 (2016-08-27) fix compiler warnings
// 0.08 (2015-09-13) really fix bug with empty rects (w=0 or h=0)
// 0.07 (2015-09-13) fix bug with empty rects (w=0 or h=0)
// 0.06 (2015-04-15) added STBRP_SORT to allow replacing qsort
// 0.05: added STBRP_ASSERT to allow replacing assert
// 0.04: fixed minor bug in STBRP_LARGE_RECTS support
// 0.01: initial release
//
// LICENSE
//
// See end of file for license information.
//////////////////////////////////////////////////////////////////////////////
//
// INCLUDE SECTION
//
#ifndef STB_INCLUDE_STB_RECT_PACK_H
#define STB_INCLUDE_STB_RECT_PACK_H
#define STB_RECT_PACK_VERSION 1
#ifdef STBRP_STATIC
#define STBRP_DEF static
#else
#define STBRP_DEF extern
#endif
#ifdef __cplusplus
extern "C" {
#endif
typedef struct stbrp_context stbrp_context;
typedef struct stbrp_node stbrp_node;
typedef struct stbrp_rect stbrp_rect;
typedef int stbrp_coord;
#define STBRP__MAXVAL 0x7fffffff
// Mostly for internal use, but this is the maximum supported coordinate value.
STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
// Assign packed locations to rectangles. The rectangles are of type
// 'stbrp_rect' defined below, stored in the array 'rects', and there
// are 'num_rects' many of them.
//
// Rectangles which are successfully packed have the 'was_packed' flag
// set to a non-zero value and 'x' and 'y' store the minimum location
// on each axis (i.e. bottom-left in cartesian coordinates, top-left
// if you imagine y increasing downwards). Rectangles which do not fit
// have the 'was_packed' flag set to 0.
//
// You should not try to access the 'rects' array from another thread
// while this function is running, as the function temporarily reorders
// the array while it executes.
//
// To pack into another rectangle, you need to call stbrp_init_target
// again. To continue packing into the same rectangle, you can call
// this function again. Calling this multiple times with multiple rect
// arrays will probably produce worse packing results than calling it
// a single time with the full rectangle array, but the option is
// available.
//
// The function returns 1 if all of the rectangles were successfully
// packed and 0 otherwise.
struct stbrp_rect
{
// reserved for your use:
int id;
// input:
stbrp_coord w, h;
// output:
stbrp_coord x, y;
int was_packed; // non-zero if valid packing
}; // 16 bytes, nominally
STBRP_DEF void stbrp_init_target (stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes);
// Initialize a rectangle packer to:
// pack a rectangle that is 'width' by 'height' in dimensions
// using temporary storage provided by the array 'nodes', which is 'num_nodes' long
//
// You must call this function every time you start packing into a new target.
//
// There is no "shutdown" function. The 'nodes' memory must stay valid for
// the following stbrp_pack_rects() call (or calls), but can be freed after
// the call (or calls) finish.
//
// Note: to guarantee best results, either:
// 1. make sure 'num_nodes' >= 'width'
// or 2. call stbrp_allow_out_of_mem() defined below with 'allow_out_of_mem = 1'
//
// If you don't do either of the above things, widths will be quantized to multiples
// of small integers to guarantee the algorithm doesn't run out of temporary storage.
//
// If you do #2, then the non-quantized algorithm will be used, but the algorithm
// may run out of temporary storage and be unable to pack some rectangles.
STBRP_DEF void stbrp_setup_allow_out_of_mem (stbrp_context *context, int allow_out_of_mem);
// Optionally call this function after init but before doing any packing to
// change the handling of the out-of-temp-memory scenario, described above.
// If you call init again, this will be reset to the default (false).
STBRP_DEF void stbrp_setup_heuristic (stbrp_context *context, int heuristic);
// Optionally select which packing heuristic the library should use. Different
// heuristics will produce better/worse results for different data sets.
// If you call init again, this will be reset to the default.
enum
{
STBRP_HEURISTIC_Skyline_default=0,
STBRP_HEURISTIC_Skyline_BL_sortHeight = STBRP_HEURISTIC_Skyline_default,
STBRP_HEURISTIC_Skyline_BF_sortHeight
};
//////////////////////////////////////////////////////////////////////////////
//
// the details of the following structures don't matter to you, but they must
// be visible so you can handle the memory allocations for them
struct stbrp_node
{
stbrp_coord x,y;
stbrp_node *next;
};
struct stbrp_context
{
int width;
int height;
int align;
int init_mode;
int heuristic;
int num_nodes;
stbrp_node *active_head;
stbrp_node *free_head;
stbrp_node extra[2]; // we allocate two extra nodes so optimal user-node-count is 'width' not 'width+2'
};
#ifdef __cplusplus
}
#endif
#endif
//////////////////////////////////////////////////////////////////////////////
//
// IMPLEMENTATION SECTION
//
#ifdef STB_RECT_PACK_IMPLEMENTATION
#ifndef STBRP_SORT
#include <stdlib.h>
#define STBRP_SORT qsort
#endif
#ifndef STBRP_ASSERT
#include <assert.h>
#define STBRP_ASSERT assert
#endif
#ifdef _MSC_VER
#define STBRP__NOTUSED(v) (void)(v)
#define STBRP__CDECL __cdecl
#else
#define STBRP__NOTUSED(v) (void)sizeof(v)
#define STBRP__CDECL
#endif
enum
{
STBRP__INIT_skyline = 1
};
STBRP_DEF void stbrp_setup_heuristic(stbrp_context *context, int heuristic)
{
switch (context->init_mode) {
case STBRP__INIT_skyline:
STBRP_ASSERT(heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight || heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight);
context->heuristic = heuristic;
break;
default:
STBRP_ASSERT(0);
}
}
STBRP_DEF void stbrp_setup_allow_out_of_mem(stbrp_context *context, int allow_out_of_mem)
{
if (allow_out_of_mem)
// if it's ok to run out of memory, then don't bother aligning them;
// this gives better packing, but may fail due to OOM (even though
// the rectangles easily fit). @TODO a smarter approach would be to only
// quantize once we've hit OOM, then we could get rid of this parameter.
context->align = 1;
else {
// if it's not ok to run out of memory, then quantize the widths
// so that num_nodes is always enough nodes.
//
// I.e. num_nodes * align >= width
// align >= width / num_nodes
// align = ceil(width/num_nodes)
context->align = (context->width + context->num_nodes-1) / context->num_nodes;
}
}
STBRP_DEF void stbrp_init_target(stbrp_context *context, int width, int height, stbrp_node *nodes, int num_nodes)
{
int i;
for (i=0; i < num_nodes-1; ++i)
nodes[i].next = &nodes[i+1];
nodes[i].next = NULL;
context->init_mode = STBRP__INIT_skyline;
context->heuristic = STBRP_HEURISTIC_Skyline_default;
context->free_head = &nodes[0];
context->active_head = &context->extra[0];
context->width = width;
context->height = height;
context->num_nodes = num_nodes;
stbrp_setup_allow_out_of_mem(context, 0);
// node 0 is the full width, node 1 is the sentinel (lets us not store width explicitly)
context->extra[0].x = 0;
context->extra[0].y = 0;
context->extra[0].next = &context->extra[1];
context->extra[1].x = (stbrp_coord) width;
context->extra[1].y = (1<<30);
context->extra[1].next = NULL;
}
// find minimum y position if it starts at x1
static int stbrp__skyline_find_min_y(stbrp_context *c, stbrp_node *first, int x0, int width, int *pwaste)
{
stbrp_node *node = first;
int x1 = x0 + width;
int min_y, visited_width, waste_area;
STBRP__NOTUSED(c);
STBRP_ASSERT(first->x <= x0);
#if 0
// skip in case we're past the node
while (node->next->x <= x0)
++node;
#else
STBRP_ASSERT(node->next->x > x0); // we ended up handling this in the caller for efficiency
#endif
STBRP_ASSERT(node->x <= x0);
min_y = 0;
waste_area = 0;
visited_width = 0;
while (node->x < x1) {
if (node->y > min_y) {
// raise min_y higher.
// we've accounted for all waste up to min_y,
// but we'll now add more waste for everything we've visted
waste_area += visited_width * (node->y - min_y);
min_y = node->y;
// the first time through, visited_width might be reduced
if (node->x < x0)
visited_width += node->next->x - x0;
else
visited_width += node->next->x - node->x;
} else {
// add waste area
int under_width = node->next->x - node->x;
if (under_width + visited_width > width)
under_width = width - visited_width;
waste_area += under_width * (min_y - node->y);
visited_width += under_width;
}
node = node->next;
}
*pwaste = waste_area;
return min_y;
}
typedef struct
{
int x,y;
stbrp_node **prev_link;
} stbrp__findresult;
static stbrp__findresult stbrp__skyline_find_best_pos(stbrp_context *c, int width, int height)
{
int best_waste = (1<<30), best_x, best_y = (1 << 30);
stbrp__findresult fr;
stbrp_node **prev, *node, *tail, **best = NULL;
// align to multiple of c->align
width = (width + c->align - 1);
width -= width % c->align;
STBRP_ASSERT(width % c->align == 0);
// if it can't possibly fit, bail immediately
if (width > c->width || height > c->height) {
fr.prev_link = NULL;
fr.x = fr.y = 0;
return fr;
}
node = c->active_head;
prev = &c->active_head;
while (node->x + width <= c->width) {
int y,waste;
y = stbrp__skyline_find_min_y(c, node, node->x, width, &waste);
if (c->heuristic == STBRP_HEURISTIC_Skyline_BL_sortHeight) { // actually just want to test BL
// bottom left
if (y < best_y) {
best_y = y;
best = prev;
}
} else {
// best-fit
if (y + height <= c->height) {
// can only use it if it first vertically
if (y < best_y || (y == best_y && waste < best_waste)) {
best_y = y;
best_waste = waste;
best = prev;
}
}
}
prev = &node->next;
node = node->next;
}
best_x = (best == NULL) ? 0 : (*best)->x;
// if doing best-fit (BF), we also have to try aligning right edge to each node position
//
// e.g, if fitting
//
// ____________________
// |____________________|
//
// into
//
// | |
// | ____________|
// |____________|
//
// then right-aligned reduces waste, but bottom-left BL is always chooses left-aligned
//
// This makes BF take about 2x the time
if (c->heuristic == STBRP_HEURISTIC_Skyline_BF_sortHeight) {
tail = c->active_head;
node = c->active_head;
prev = &c->active_head;
// find first node that's admissible
while (tail->x < width)
tail = tail->next;
while (tail) {
int xpos = tail->x - width;
int y,waste;
STBRP_ASSERT(xpos >= 0);
// find the left position that matches this
while (node->next->x <= xpos) {
prev = &node->next;
node = node->next;
}
STBRP_ASSERT(node->next->x > xpos && node->x <= xpos);
y = stbrp__skyline_find_min_y(c, node, xpos, width, &waste);
if (y + height <= c->height) {
if (y <= best_y) {
if (y < best_y || waste < best_waste || (waste==best_waste && xpos < best_x)) {
best_x = xpos;
//STBRP_ASSERT(y <= best_y); [DEAR IMGUI]
best_y = y;
best_waste = waste;
best = prev;
}
}
}
tail = tail->next;
}
}
fr.prev_link = best;
fr.x = best_x;
fr.y = best_y;
return fr;
}
static stbrp__findresult stbrp__skyline_pack_rectangle(stbrp_context *context, int width, int height)
{
// find best position according to heuristic
stbrp__findresult res = stbrp__skyline_find_best_pos(context, width, height);
stbrp_node *node, *cur;
// bail if:
// 1. it failed
// 2. the best node doesn't fit (we don't always check this)
// 3. we're out of memory
if (res.prev_link == NULL || res.y + height > context->height || context->free_head == NULL) {
res.prev_link = NULL;
return res;
}
// on success, create new node
node = context->free_head;
node->x = (stbrp_coord) res.x;
node->y = (stbrp_coord) (res.y + height);
context->free_head = node->next;
// insert the new node into the right starting point, and
// let 'cur' point to the remaining nodes needing to be
// stiched back in
cur = *res.prev_link;
if (cur->x < res.x) {
// preserve the existing one, so start testing with the next one
stbrp_node *next = cur->next;
cur->next = node;
cur = next;
} else {
*res.prev_link = node;
}
// from here, traverse cur and free the nodes, until we get to one
// that shouldn't be freed
while (cur->next && cur->next->x <= res.x + width) {
stbrp_node *next = cur->next;
// move the current node to the free list
cur->next = context->free_head;
context->free_head = cur;
cur = next;
}
// stitch the list back in
node->next = cur;
if (cur->x < res.x + width)
cur->x = (stbrp_coord) (res.x + width);
#ifdef _DEBUG
cur = context->active_head;
while (cur->x < context->width) {
STBRP_ASSERT(cur->x < cur->next->x);
cur = cur->next;
}
STBRP_ASSERT(cur->next == NULL);
{
int count=0;
cur = context->active_head;
while (cur) {
cur = cur->next;
++count;
}
cur = context->free_head;
while (cur) {
cur = cur->next;
++count;
}
STBRP_ASSERT(count == context->num_nodes+2);
}
#endif
return res;
}
static int STBRP__CDECL rect_height_compare(const void *a, const void *b)
{
const stbrp_rect *p = (const stbrp_rect *) a;
const stbrp_rect *q = (const stbrp_rect *) b;
if (p->h > q->h)
return -1;
if (p->h < q->h)
return 1;
return (p->w > q->w) ? -1 : (p->w < q->w);
}
static int STBRP__CDECL rect_original_order(const void *a, const void *b)
{
const stbrp_rect *p = (const stbrp_rect *) a;
const stbrp_rect *q = (const stbrp_rect *) b;
return (p->was_packed < q->was_packed) ? -1 : (p->was_packed > q->was_packed);
}
STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
{
int i, all_rects_packed = 1;
// we use the 'was_packed' field internally to allow sorting/unsorting
for (i=0; i < num_rects; ++i) {
rects[i].was_packed = i;
}
// sort according to heuristic
STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_height_compare);
for (i=0; i < num_rects; ++i) {
if (rects[i].w == 0 || rects[i].h == 0) {
rects[i].x = rects[i].y = 0; // empty rect needs no space
} else {
stbrp__findresult fr = stbrp__skyline_pack_rectangle(context, rects[i].w, rects[i].h);
if (fr.prev_link) {
rects[i].x = (stbrp_coord) fr.x;
rects[i].y = (stbrp_coord) fr.y;
} else {
rects[i].x = rects[i].y = STBRP__MAXVAL;
}
}
}
// unsort
STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order);
// set was_packed flags and all_rects_packed status
for (i=0; i < num_rects; ++i) {
rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
if (!rects[i].was_packed)
all_rects_packed = 0;
}
// return the all_rects_packed status
return all_rects_packed;
}
#endif
/*
------------------------------------------------------------------------------
This software is available under 2 licenses -- choose whichever you prefer.
------------------------------------------------------------------------------
ALTERNATIVE A - MIT License
Copyright (c) 2017 Sean Barrett
Permission is hereby granted, free of charge, to any person obtaining a copy of
this software and associated documentation files (the "Software"), to deal in
the Software without restriction, including without limitation the rights to
use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
of the Software, and to permit persons to whom the Software is furnished to do
so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
------------------------------------------------------------------------------
ALTERNATIVE B - Public Domain (www.unlicense.org)
This is free and unencumbered software released into the public domain.
Anyone is free to copy, modify, publish, use, compile, sell, or distribute this
software, either in source code form or as a compiled binary, for any purpose,
commercial or non-commercial, and by any means.
In jurisdictions that recognize copyright laws, the author or authors of this
software dedicate any and all copyright interest in the software to the public
domain. We make this dedication for the benefit of the public at large and to
the detriment of our heirs and successors. We intend this dedication to be an
overt act of relinquishment in perpetuity of all present and future rights to
this software under copyright law.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
------------------------------------------------------------------------------
*/

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// dear imgui: Platform Backend for SDL3 (*EXPERIMENTAL*)
// This needs to be used along with a Renderer (e.g. DirectX11, OpenGL3, Vulkan..)
// (Info: SDL3 is a cross-platform general purpose library for handling windows, inputs, graphics context creation, etc.)
// (IMPORTANT: SDL 3.0.0 is NOT YET RELEASED. IT IS POSSIBLE THAT ITS SPECS/API WILL CHANGE BEFORE RELEASE)
// Implemented features:
// [X] Platform: Clipboard support.
// [X] Platform: Mouse support. Can discriminate Mouse/TouchScreen.
// [X] Platform: Keyboard support. Since 1.87 we are using the io.AddKeyEvent() function. Pass ImGuiKey values to all key functions e.g. ImGui::IsKeyPressed(ImGuiKey_Space). [Legacy SDL_SCANCODE_* values will also be supported unless IMGUI_DISABLE_OBSOLETE_KEYIO is set]
// [X] Platform: Gamepad support. Enabled with 'io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad'.
// [X] Platform: Mouse cursor shape and visibility. Disable with 'io.ConfigFlags |= ImGuiConfigFlags_NoMouseCursorChange'.
// [x] Platform: Multi-viewport support (multiple windows). Enable with 'io.ConfigFlags |= ImGuiConfigFlags_ViewportsEnable' -> the OS animation effect when window gets created/destroyed is problematic. SDL2 backend doesn't have issue.
// Missing features:
// [ ] Platform: Multi-viewport + Minimized windows seems to break mouse wheel events (at least under Windows).
// [x] Platform: Basic IME support. Position somehow broken in SDL3 + app needs to call 'SDL_SetHint(SDL_HINT_IME_SHOW_UI, "1");' before SDL_CreateWindow()!.
// You can use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// Prefer including the entire imgui/ repository into your project (either as a copy or as a submodule), and only build the backends you need.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2023-XX-XX: Platform: Added support for multiple windows via the ImGuiPlatformIO interface.
// 2023-05-04: Fixed build on Emscripten/iOS/Android. (#6391)
// 2023-04-06: Inputs: Avoid calling SDL_StartTextInput()/SDL_StopTextInput() as they don't only pertain to IME. It's unclear exactly what their relation is to IME. (#6306)
// 2023-04-04: Inputs: Added support for io.AddMouseSourceEvent() to discriminate ImGuiMouseSource_Mouse/ImGuiMouseSource_TouchScreen. (#2702)
// 2023-02-23: Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. (#6189, #6114, #3644)
// 2023-02-07: Forked "imgui_impl_sdl2" into "imgui_impl_sdl3". Removed version checks for old feature. Refer to imgui_impl_sdl2.cpp for older changelog.
#include "imgui.h"
#include "imgui_impl_sdl3.h"
// Clang warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wimplicit-int-float-conversion" // warning: implicit conversion from 'xxx' to 'float' may lose precision
#endif
// SDL
#include <SDL3/SDL.h>
#include <SDL3/SDL_syswm.h>
#if defined(__APPLE__)
#include <TargetConditionals.h>
#endif
#if !defined(__EMSCRIPTEN__) && !defined(__ANDROID__) && !(defined(__APPLE__) && TARGET_OS_IOS) && !defined(__amigaos4__)
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 1
#else
#define SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE 0
#endif
// SDL Data
struct ImGui_ImplSDL3_Data
{
SDL_Window* Window;
SDL_Renderer* Renderer;
Uint64 Time;
Uint32 MouseWindowID;
int MouseButtonsDown;
SDL_Cursor* MouseCursors[ImGuiMouseCursor_COUNT];
SDL_Cursor* LastMouseCursor;
int PendingMouseLeaveFrame;
char* ClipboardTextData;
bool MouseCanUseGlobalState;
bool MouseCanReportHoveredViewport; // This is hard to use/unreliable on SDL so we'll set ImGuiBackendFlags_HasMouseHoveredViewport dynamically based on state.
bool UseVulkan;
bool WantUpdateMonitors;
ImGui_ImplSDL3_Data() { memset((void*)this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendPlatformUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
// FIXME: multi-context support is not well tested and probably dysfunctional in this backend.
// FIXME: some shared resources (mouse cursor shape, gamepad) are mishandled when using multi-context.
static ImGui_ImplSDL3_Data* ImGui_ImplSDL3_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDL3_Data*)ImGui::GetIO().BackendPlatformUserData : nullptr;
}
// Forward Declarations
static void ImGui_ImplSDL3_UpdateMonitors();
static void ImGui_ImplSDL3_InitPlatformInterface(SDL_Window* window, void* sdl_gl_context);
static void ImGui_ImplSDL3_ShutdownPlatformInterface();
// Functions
static const char* ImGui_ImplSDL3_GetClipboardText(void*)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
bd->ClipboardTextData = SDL_GetClipboardText();
return bd->ClipboardTextData;
}
static void ImGui_ImplSDL3_SetClipboardText(void*, const char* text)
{
SDL_SetClipboardText(text);
}
static void ImGui_ImplSDL3_SetPlatformImeData(ImGuiViewport* viewport, ImGuiPlatformImeData* data)
{
if (data->WantVisible)
{
SDL_Rect r;
r.x = (int)(data->InputPos.x - viewport->Pos.x);
r.y = (int)(data->InputPos.y - viewport->Pos.y + data->InputLineHeight);
r.w = 1;
r.h = (int)data->InputLineHeight;
SDL_SetTextInputRect(&r);
}
}
static ImGuiKey ImGui_ImplSDL3_KeycodeToImGuiKey(int keycode)
{
switch (keycode)
{
case SDLK_TAB: return ImGuiKey_Tab;
case SDLK_LEFT: return ImGuiKey_LeftArrow;
case SDLK_RIGHT: return ImGuiKey_RightArrow;
case SDLK_UP: return ImGuiKey_UpArrow;
case SDLK_DOWN: return ImGuiKey_DownArrow;
case SDLK_PAGEUP: return ImGuiKey_PageUp;
case SDLK_PAGEDOWN: return ImGuiKey_PageDown;
case SDLK_HOME: return ImGuiKey_Home;
case SDLK_END: return ImGuiKey_End;
case SDLK_INSERT: return ImGuiKey_Insert;
case SDLK_DELETE: return ImGuiKey_Delete;
case SDLK_BACKSPACE: return ImGuiKey_Backspace;
case SDLK_SPACE: return ImGuiKey_Space;
case SDLK_RETURN: return ImGuiKey_Enter;
case SDLK_ESCAPE: return ImGuiKey_Escape;
case SDLK_QUOTE: return ImGuiKey_Apostrophe;
case SDLK_COMMA: return ImGuiKey_Comma;
case SDLK_MINUS: return ImGuiKey_Minus;
case SDLK_PERIOD: return ImGuiKey_Period;
case SDLK_SLASH: return ImGuiKey_Slash;
case SDLK_SEMICOLON: return ImGuiKey_Semicolon;
case SDLK_EQUALS: return ImGuiKey_Equal;
case SDLK_LEFTBRACKET: return ImGuiKey_LeftBracket;
case SDLK_BACKSLASH: return ImGuiKey_Backslash;
case SDLK_RIGHTBRACKET: return ImGuiKey_RightBracket;
case SDLK_BACKQUOTE: return ImGuiKey_GraveAccent;
case SDLK_CAPSLOCK: return ImGuiKey_CapsLock;
case SDLK_SCROLLLOCK: return ImGuiKey_ScrollLock;
case SDLK_NUMLOCKCLEAR: return ImGuiKey_NumLock;
case SDLK_PRINTSCREEN: return ImGuiKey_PrintScreen;
case SDLK_PAUSE: return ImGuiKey_Pause;
case SDLK_KP_0: return ImGuiKey_Keypad0;
case SDLK_KP_1: return ImGuiKey_Keypad1;
case SDLK_KP_2: return ImGuiKey_Keypad2;
case SDLK_KP_3: return ImGuiKey_Keypad3;
case SDLK_KP_4: return ImGuiKey_Keypad4;
case SDLK_KP_5: return ImGuiKey_Keypad5;
case SDLK_KP_6: return ImGuiKey_Keypad6;
case SDLK_KP_7: return ImGuiKey_Keypad7;
case SDLK_KP_8: return ImGuiKey_Keypad8;
case SDLK_KP_9: return ImGuiKey_Keypad9;
case SDLK_KP_PERIOD: return ImGuiKey_KeypadDecimal;
case SDLK_KP_DIVIDE: return ImGuiKey_KeypadDivide;
case SDLK_KP_MULTIPLY: return ImGuiKey_KeypadMultiply;
case SDLK_KP_MINUS: return ImGuiKey_KeypadSubtract;
case SDLK_KP_PLUS: return ImGuiKey_KeypadAdd;
case SDLK_KP_ENTER: return ImGuiKey_KeypadEnter;
case SDLK_KP_EQUALS: return ImGuiKey_KeypadEqual;
case SDLK_LCTRL: return ImGuiKey_LeftCtrl;
case SDLK_LSHIFT: return ImGuiKey_LeftShift;
case SDLK_LALT: return ImGuiKey_LeftAlt;
case SDLK_LGUI: return ImGuiKey_LeftSuper;
case SDLK_RCTRL: return ImGuiKey_RightCtrl;
case SDLK_RSHIFT: return ImGuiKey_RightShift;
case SDLK_RALT: return ImGuiKey_RightAlt;
case SDLK_RGUI: return ImGuiKey_RightSuper;
case SDLK_APPLICATION: return ImGuiKey_Menu;
case SDLK_0: return ImGuiKey_0;
case SDLK_1: return ImGuiKey_1;
case SDLK_2: return ImGuiKey_2;
case SDLK_3: return ImGuiKey_3;
case SDLK_4: return ImGuiKey_4;
case SDLK_5: return ImGuiKey_5;
case SDLK_6: return ImGuiKey_6;
case SDLK_7: return ImGuiKey_7;
case SDLK_8: return ImGuiKey_8;
case SDLK_9: return ImGuiKey_9;
case SDLK_a: return ImGuiKey_A;
case SDLK_b: return ImGuiKey_B;
case SDLK_c: return ImGuiKey_C;
case SDLK_d: return ImGuiKey_D;
case SDLK_e: return ImGuiKey_E;
case SDLK_f: return ImGuiKey_F;
case SDLK_g: return ImGuiKey_G;
case SDLK_h: return ImGuiKey_H;
case SDLK_i: return ImGuiKey_I;
case SDLK_j: return ImGuiKey_J;
case SDLK_k: return ImGuiKey_K;
case SDLK_l: return ImGuiKey_L;
case SDLK_m: return ImGuiKey_M;
case SDLK_n: return ImGuiKey_N;
case SDLK_o: return ImGuiKey_O;
case SDLK_p: return ImGuiKey_P;
case SDLK_q: return ImGuiKey_Q;
case SDLK_r: return ImGuiKey_R;
case SDLK_s: return ImGuiKey_S;
case SDLK_t: return ImGuiKey_T;
case SDLK_u: return ImGuiKey_U;
case SDLK_v: return ImGuiKey_V;
case SDLK_w: return ImGuiKey_W;
case SDLK_x: return ImGuiKey_X;
case SDLK_y: return ImGuiKey_Y;
case SDLK_z: return ImGuiKey_Z;
case SDLK_F1: return ImGuiKey_F1;
case SDLK_F2: return ImGuiKey_F2;
case SDLK_F3: return ImGuiKey_F3;
case SDLK_F4: return ImGuiKey_F4;
case SDLK_F5: return ImGuiKey_F5;
case SDLK_F6: return ImGuiKey_F6;
case SDLK_F7: return ImGuiKey_F7;
case SDLK_F8: return ImGuiKey_F8;
case SDLK_F9: return ImGuiKey_F9;
case SDLK_F10: return ImGuiKey_F10;
case SDLK_F11: return ImGuiKey_F11;
case SDLK_F12: return ImGuiKey_F12;
}
return ImGuiKey_None;
}
static void ImGui_ImplSDL3_UpdateKeyModifiers(SDL_Keymod sdl_key_mods)
{
ImGuiIO& io = ImGui::GetIO();
io.AddKeyEvent(ImGuiMod_Ctrl, (sdl_key_mods & SDL_KMOD_CTRL) != 0);
io.AddKeyEvent(ImGuiMod_Shift, (sdl_key_mods & SDL_KMOD_SHIFT) != 0);
io.AddKeyEvent(ImGuiMod_Alt, (sdl_key_mods & SDL_KMOD_ALT) != 0);
io.AddKeyEvent(ImGuiMod_Super, (sdl_key_mods & SDL_KMOD_GUI) != 0);
}
// You can read the io.WantCaptureMouse, io.WantCaptureKeyboard flags to tell if dear imgui wants to use your inputs.
// - When io.WantCaptureMouse is true, do not dispatch mouse input data to your main application, or clear/overwrite your copy of the mouse data.
// - When io.WantCaptureKeyboard is true, do not dispatch keyboard input data to your main application, or clear/overwrite your copy of the keyboard data.
// Generally you may always pass all inputs to dear imgui, and hide them from your application based on those two flags.
// If you have multiple SDL events and some of them are not meant to be used by dear imgui, you may need to filter events based on their windowID field.
bool ImGui_ImplSDL3_ProcessEvent(const SDL_Event* event)
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
switch (event->type)
{
case SDL_EVENT_MOUSE_MOTION:
{
ImVec2 mouse_pos((float)event->motion.x, (float)event->motion.y);
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
{
int window_x, window_y;
SDL_GetWindowPosition(SDL_GetWindowFromID(event->motion.windowID), &window_x, &window_y);
mouse_pos.x += window_x;
mouse_pos.y += window_y;
}
io.AddMouseSourceEvent(event->motion.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMousePosEvent(mouse_pos.x, mouse_pos.y);
return true;
}
case SDL_EVENT_MOUSE_WHEEL:
{
//IMGUI_DEBUG_LOG("wheel %.2f %.2f, precise %.2f %.2f\n", (float)event->wheel.x, (float)event->wheel.y, event->wheel.preciseX, event->wheel.preciseY);
float wheel_x = -event->wheel.x;
float wheel_y = event->wheel.y;
#ifdef __EMSCRIPTEN__
wheel_x /= 100.0f;
#endif
io.AddMouseSourceEvent(event->wheel.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMouseWheelEvent(wheel_x, wheel_y);
return true;
}
case SDL_EVENT_MOUSE_BUTTON_DOWN:
case SDL_EVENT_MOUSE_BUTTON_UP:
{
int mouse_button = -1;
if (event->button.button == SDL_BUTTON_LEFT) { mouse_button = 0; }
if (event->button.button == SDL_BUTTON_RIGHT) { mouse_button = 1; }
if (event->button.button == SDL_BUTTON_MIDDLE) { mouse_button = 2; }
if (event->button.button == SDL_BUTTON_X1) { mouse_button = 3; }
if (event->button.button == SDL_BUTTON_X2) { mouse_button = 4; }
if (mouse_button == -1)
break;
io.AddMouseSourceEvent(event->button.which == SDL_TOUCH_MOUSEID ? ImGuiMouseSource_TouchScreen : ImGuiMouseSource_Mouse);
io.AddMouseButtonEvent(mouse_button, (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN));
bd->MouseButtonsDown = (event->type == SDL_EVENT_MOUSE_BUTTON_DOWN) ? (bd->MouseButtonsDown | (1 << mouse_button)) : (bd->MouseButtonsDown & ~(1 << mouse_button));
return true;
}
case SDL_EVENT_TEXT_INPUT:
{
io.AddInputCharactersUTF8(event->text.text);
return true;
}
case SDL_EVENT_KEY_DOWN:
case SDL_EVENT_KEY_UP:
{
ImGui_ImplSDL3_UpdateKeyModifiers((SDL_Keymod)event->key.keysym.mod);
ImGuiKey key = ImGui_ImplSDL3_KeycodeToImGuiKey(event->key.keysym.sym);
io.AddKeyEvent(key, (event->type == SDL_EVENT_KEY_DOWN));
io.SetKeyEventNativeData(key, event->key.keysym.sym, event->key.keysym.scancode, event->key.keysym.scancode); // To support legacy indexing (<1.87 user code). Legacy backend uses SDLK_*** as indices to IsKeyXXX() functions.
return true;
}
case SDL_EVENT_DISPLAY_ORIENTATION:
case SDL_EVENT_DISPLAY_CONNECTED:
case SDL_EVENT_DISPLAY_DISCONNECTED:
case SDL_EVENT_DISPLAY_MOVED:
case SDL_EVENT_DISPLAY_CONTENT_SCALE_CHANGED:
{
bd->WantUpdateMonitors = true;
return true;
}
case SDL_EVENT_WINDOW_MOUSE_ENTER:
{
bd->MouseWindowID = event->window.windowID;
bd->PendingMouseLeaveFrame = 0;
return true;
}
// - In some cases, when detaching a window from main viewport SDL may send SDL_WINDOWEVENT_ENTER one frame too late,
// causing SDL_WINDOWEVENT_LEAVE on previous frame to interrupt drag operation by clear mouse position. This is why
// we delay process the SDL_WINDOWEVENT_LEAVE events by one frame. See issue #5012 for details.
// FIXME: Unconfirmed whether this is still needed with SDL3.
case SDL_EVENT_WINDOW_MOUSE_LEAVE:
{
bd->PendingMouseLeaveFrame = ImGui::GetFrameCount() + 1;
return true;
}
case SDL_EVENT_WINDOW_FOCUS_GAINED:
io.AddFocusEvent(true);
return true;
case SDL_EVENT_WINDOW_FOCUS_LOST:
io.AddFocusEvent(false);
return true;
case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
case SDL_EVENT_WINDOW_MOVED:
case SDL_EVENT_WINDOW_RESIZED:
if (ImGuiViewport* viewport = ImGui::FindViewportByPlatformHandle((void*)SDL_GetWindowFromID(event->window.windowID)))
{
if (event->type == SDL_EVENT_WINDOW_CLOSE_REQUESTED)
viewport->PlatformRequestClose = true;
if (event->type == SDL_EVENT_WINDOW_MOVED)
viewport->PlatformRequestMove = true;
if (event->type == SDL_EVENT_WINDOW_RESIZED)
viewport->PlatformRequestResize = true;
return true;
}
return true;
}
return false;
}
static bool ImGui_ImplSDL3_Init(SDL_Window* window, SDL_Renderer* renderer, void* sdl_gl_context)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendPlatformUserData == nullptr && "Already initialized a platform backend!");
// Check and store if we are on a SDL backend that supports global mouse position
// ("wayland" and "rpi" don't support it, but we chose to use a white-list instead of a black-list)
bool mouse_can_use_global_state = false;
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
const char* sdl_backend = SDL_GetCurrentVideoDriver();
const char* global_mouse_whitelist[] = { "windows", "cocoa", "x11", "DIVE", "VMAN" };
for (int n = 0; n < IM_ARRAYSIZE(global_mouse_whitelist); n++)
if (strncmp(sdl_backend, global_mouse_whitelist[n], strlen(global_mouse_whitelist[n])) == 0)
mouse_can_use_global_state = true;
#endif
// Setup backend capabilities flags
ImGui_ImplSDL3_Data* bd = IM_NEW(ImGui_ImplSDL3_Data)();
io.BackendPlatformUserData = (void*)bd;
io.BackendPlatformName = "imgui_impl_sdl3";
io.BackendFlags |= ImGuiBackendFlags_HasMouseCursors; // We can honor GetMouseCursor() values (optional)
io.BackendFlags |= ImGuiBackendFlags_HasSetMousePos; // We can honor io.WantSetMousePos requests (optional, rarely used)
if (mouse_can_use_global_state)
io.BackendFlags |= ImGuiBackendFlags_PlatformHasViewports; // We can create multi-viewports on the Platform side (optional)
bd->Window = window;
bd->Renderer = renderer;
// SDL on Linux/OSX doesn't report events for unfocused windows (see https://github.com/ocornut/imgui/issues/4960)
// We will use 'MouseCanReportHoveredViewport' to set 'ImGuiBackendFlags_HasMouseHoveredViewport' dynamically each frame.
bd->MouseCanUseGlobalState = mouse_can_use_global_state;
#ifndef __APPLE__
bd->MouseCanReportHoveredViewport = bd->MouseCanUseGlobalState;
#else
bd->MouseCanReportHoveredViewport = false;
#endif
bd->WantUpdateMonitors = true;
io.SetClipboardTextFn = ImGui_ImplSDL3_SetClipboardText;
io.GetClipboardTextFn = ImGui_ImplSDL3_GetClipboardText;
io.ClipboardUserData = nullptr;
io.SetPlatformImeDataFn = ImGui_ImplSDL3_SetPlatformImeData;
// Load mouse cursors
bd->MouseCursors[ImGuiMouseCursor_Arrow] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_ARROW);
bd->MouseCursors[ImGuiMouseCursor_TextInput] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_IBEAM);
bd->MouseCursors[ImGuiMouseCursor_ResizeAll] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEALL);
bd->MouseCursors[ImGuiMouseCursor_ResizeNS] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENS);
bd->MouseCursors[ImGuiMouseCursor_ResizeEW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZEWE);
bd->MouseCursors[ImGuiMouseCursor_ResizeNESW] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENESW);
bd->MouseCursors[ImGuiMouseCursor_ResizeNWSE] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_SIZENWSE);
bd->MouseCursors[ImGuiMouseCursor_Hand] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_HAND);
bd->MouseCursors[ImGuiMouseCursor_NotAllowed] = SDL_CreateSystemCursor(SDL_SYSTEM_CURSOR_NO);
// Set platform dependent data in viewport
// Our mouse update function expect PlatformHandle to be filled for the main viewport
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
main_viewport->PlatformHandle = (void*)window;
main_viewport->PlatformHandleRaw = nullptr;
SDL_SysWMinfo info;
if (SDL_GetWindowWMInfo(window, &info, SDL_SYSWM_CURRENT_VERSION) == 0)
{
#if defined(SDL_ENABLE_SYSWM_WINDOWS)
main_viewport->PlatformHandleRaw = (void*)info.info.win.window;
#elif defined(__APPLE__) && defined(SDL_ENABLE_SYSWM_COCOA)
main_viewport->PlatformHandleRaw = (void*)info.info.cocoa.window;
#endif
}
// From 2.0.5: Set SDL hint to receive mouse click events on window focus, otherwise SDL doesn't emit the event.
// Without this, when clicking to gain focus, our widgets wouldn't activate even though they showed as hovered.
// (This is unfortunately a global SDL setting, so enabling it might have a side-effect on your application.
// It is unlikely to make a difference, but if your app absolutely needs to ignore the initial on-focus click:
// you can ignore SDL_EVENT_MOUSE_BUTTON_DOWN events coming right after a SDL_WINDOWEVENT_FOCUS_GAINED)
SDL_SetHint(SDL_HINT_MOUSE_FOCUS_CLICKTHROUGH, "1");
// From 2.0.22: Disable auto-capture, this is preventing drag and drop across multiple windows (see #5710)
SDL_SetHint(SDL_HINT_MOUSE_AUTO_CAPTURE, "0");
// SDL 3.x : see https://github.com/libsdl-org/SDL/issues/6659
SDL_SetHint("SDL_BORDERLESS_WINDOWED_STYLE", "0");
// We need SDL_CaptureMouse(), SDL_GetGlobalMouseState() from SDL 2.0.4+ to support multiple viewports.
// We left the call to ImGui_ImplSDL3_InitPlatformInterface() outside of #ifdef to avoid unused-function warnings.
if ((io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable) && (io.BackendFlags & ImGuiBackendFlags_PlatformHasViewports))
ImGui_ImplSDL3_InitPlatformInterface(window, sdl_gl_context);
return true;
}
bool ImGui_ImplSDL3_InitForOpenGL(SDL_Window* window, void* sdl_gl_context)
{
return ImGui_ImplSDL3_Init(window, nullptr, sdl_gl_context);
}
bool ImGui_ImplSDL3_InitForVulkan(SDL_Window* window)
{
if (!ImGui_ImplSDL3_Init(window, nullptr, nullptr))
return false;
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
bd->UseVulkan = true;
return true;
}
bool ImGui_ImplSDL3_InitForD3D(SDL_Window* window)
{
#if !defined(_WIN32)
IM_ASSERT(0 && "Unsupported");
#endif
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL3_InitForMetal(SDL_Window* window)
{
return ImGui_ImplSDL3_Init(window, nullptr, nullptr);
}
bool ImGui_ImplSDL3_InitForSDLRenderer(SDL_Window* window, SDL_Renderer* renderer)
{
return ImGui_ImplSDL3_Init(window, renderer, nullptr);
}
void ImGui_ImplSDL3_Shutdown()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
IM_ASSERT(bd != nullptr && "No platform backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDL3_ShutdownPlatformInterface();
if (bd->ClipboardTextData)
SDL_free(bd->ClipboardTextData);
for (ImGuiMouseCursor cursor_n = 0; cursor_n < ImGuiMouseCursor_COUNT; cursor_n++)
SDL_DestroyCursor(bd->MouseCursors[cursor_n]);
bd->LastMouseCursor = nullptr;
io.BackendPlatformName = nullptr;
io.BackendPlatformUserData = nullptr;
io.BackendFlags &= ~(ImGuiBackendFlags_HasMouseCursors | ImGuiBackendFlags_HasSetMousePos | ImGuiBackendFlags_HasGamepad | ImGuiBackendFlags_PlatformHasViewports | ImGuiBackendFlags_HasMouseHoveredViewport);
IM_DELETE(bd);
}
// This code is incredibly messy because some of the functions we need for full viewport support are not available in SDL < 2.0.4.
static void ImGui_ImplSDL3_UpdateMouseData()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGuiIO& io = ImGui::GetIO();
// We forward mouse input when hovered or captured (via SDL_EVENT_MOUSE_MOTION) or when focused (below)
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
// SDL_CaptureMouse() let the OS know e.g. that our imgui drag outside the SDL window boundaries shouldn't e.g. trigger other operations outside
SDL_CaptureMouse((bd->MouseButtonsDown != 0) ? SDL_TRUE : SDL_FALSE);
SDL_Window* focused_window = SDL_GetKeyboardFocus();
const bool is_app_focused = (focused_window && (bd->Window == focused_window || ImGui::FindViewportByPlatformHandle((void*)focused_window)));
#else
SDL_Window* focused_window = bd->Window;
const bool is_app_focused = (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0; // SDL 2.0.3 and non-windowed systems: single-viewport only
#endif
if (is_app_focused)
{
// (Optional) Set OS mouse position from Dear ImGui if requested (rarely used, only when ImGuiConfigFlags_NavEnableSetMousePos is enabled by user)
if (io.WantSetMousePos)
{
#if SDL_HAS_CAPTURE_AND_GLOBAL_MOUSE
if (io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable)
SDL_WarpMouseGlobal(io.MousePos.x, io.MousePos.y);
else
#endif
SDL_WarpMouseInWindow(bd->Window, io.MousePos.x, io.MousePos.y);
}
// (Optional) Fallback to provide mouse position when focused (SDL_EVENT_MOUSE_MOTION already provides this when hovered or captured)
if (bd->MouseCanUseGlobalState && bd->MouseButtonsDown == 0)
{
// Single-viewport mode: mouse position in client window coordinates (io.MousePos is (0,0) when the mouse is on the upper-left corner of the app window)
// Multi-viewport mode: mouse position in OS absolute coordinates (io.MousePos is (0,0) when the mouse is on the upper-left of the primary monitor)
float mouse_x, mouse_y;
int window_x, window_y;
SDL_GetGlobalMouseState(&mouse_x, &mouse_y);
if (!(io.ConfigFlags & ImGuiConfigFlags_ViewportsEnable))
{
SDL_GetWindowPosition(focused_window, &window_x, &window_y);
mouse_x -= window_x;
mouse_y -= window_y;
}
io.AddMousePosEvent((float)mouse_x, (float)mouse_y);
}
}
// (Optional) When using multiple viewports: call io.AddMouseViewportEvent() with the viewport the OS mouse cursor is hovering.
// If ImGuiBackendFlags_HasMouseHoveredViewport is not set by the backend, Dear imGui will ignore this field and infer the information using its flawed heuristic.
// - [!] SDL backend does NOT correctly ignore viewports with the _NoInputs flag.
// Some backend are not able to handle that correctly. If a backend report an hovered viewport that has the _NoInputs flag (e.g. when dragging a window
// for docking, the viewport has the _NoInputs flag in order to allow us to find the viewport under), then Dear ImGui is forced to ignore the value reported
// by the backend, and use its flawed heuristic to guess the viewport behind.
// - [X] SDL backend correctly reports this regardless of another viewport behind focused and dragged from (we need this to find a useful drag and drop target).
if (io.BackendFlags & ImGuiBackendFlags_HasMouseHoveredViewport)
{
ImGuiID mouse_viewport_id = 0;
if (SDL_Window* sdl_mouse_window = SDL_GetWindowFromID(bd->MouseWindowID))
if (ImGuiViewport* mouse_viewport = ImGui::FindViewportByPlatformHandle((void*)sdl_mouse_window))
mouse_viewport_id = mouse_viewport->ID;
io.AddMouseViewportEvent(mouse_viewport_id);
}
}
static void ImGui_ImplSDL3_UpdateMouseCursor()
{
ImGuiIO& io = ImGui::GetIO();
if (io.ConfigFlags & ImGuiConfigFlags_NoMouseCursorChange)
return;
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGuiMouseCursor imgui_cursor = ImGui::GetMouseCursor();
if (io.MouseDrawCursor || imgui_cursor == ImGuiMouseCursor_None)
{
// Hide OS mouse cursor if imgui is drawing it or if it wants no cursor
SDL_HideCursor();
}
else
{
// Show OS mouse cursor
SDL_Cursor* expected_cursor = bd->MouseCursors[imgui_cursor] ? bd->MouseCursors[imgui_cursor] : bd->MouseCursors[ImGuiMouseCursor_Arrow];
if (bd->LastMouseCursor != expected_cursor)
{
SDL_SetCursor(expected_cursor); // SDL function doesn't have an early out (see #6113)
bd->LastMouseCursor = expected_cursor;
}
SDL_ShowCursor();
}
}
static void ImGui_ImplSDL3_UpdateGamepads()
{
ImGuiIO& io = ImGui::GetIO();
if ((io.ConfigFlags & ImGuiConfigFlags_NavEnableGamepad) == 0) // FIXME: Technically feeding gamepad shouldn't depend on this now that they are regular inputs.
return;
// Get gamepad
io.BackendFlags &= ~ImGuiBackendFlags_HasGamepad;
SDL_Gamepad* gamepad = SDL_OpenGamepad(0);
if (!gamepad)
return;
io.BackendFlags |= ImGuiBackendFlags_HasGamepad;
// Update gamepad inputs
#define IM_SATURATE(V) (V < 0.0f ? 0.0f : V > 1.0f ? 1.0f : V)
#define MAP_BUTTON(KEY_NO, BUTTON_NO) { io.AddKeyEvent(KEY_NO, SDL_GetGamepadButton(gamepad, BUTTON_NO) != 0); }
#define MAP_ANALOG(KEY_NO, AXIS_NO, V0, V1) { float vn = (float)(SDL_GetGamepadAxis(gamepad, AXIS_NO) - V0) / (float)(V1 - V0); vn = IM_SATURATE(vn); io.AddKeyAnalogEvent(KEY_NO, vn > 0.1f, vn); }
const int thumb_dead_zone = 8000; // SDL_gamecontroller.h suggests using this value.
MAP_BUTTON(ImGuiKey_GamepadStart, SDL_GAMEPAD_BUTTON_START);
MAP_BUTTON(ImGuiKey_GamepadBack, SDL_GAMEPAD_BUTTON_BACK);
MAP_BUTTON(ImGuiKey_GamepadFaceLeft, SDL_GAMEPAD_BUTTON_X); // Xbox X, PS Square
MAP_BUTTON(ImGuiKey_GamepadFaceRight, SDL_GAMEPAD_BUTTON_B); // Xbox B, PS Circle
MAP_BUTTON(ImGuiKey_GamepadFaceUp, SDL_GAMEPAD_BUTTON_Y); // Xbox Y, PS Triangle
MAP_BUTTON(ImGuiKey_GamepadFaceDown, SDL_GAMEPAD_BUTTON_A); // Xbox A, PS Cross
MAP_BUTTON(ImGuiKey_GamepadDpadLeft, SDL_GAMEPAD_BUTTON_DPAD_LEFT);
MAP_BUTTON(ImGuiKey_GamepadDpadRight, SDL_GAMEPAD_BUTTON_DPAD_RIGHT);
MAP_BUTTON(ImGuiKey_GamepadDpadUp, SDL_GAMEPAD_BUTTON_DPAD_UP);
MAP_BUTTON(ImGuiKey_GamepadDpadDown, SDL_GAMEPAD_BUTTON_DPAD_DOWN);
MAP_BUTTON(ImGuiKey_GamepadL1, SDL_GAMEPAD_BUTTON_LEFT_SHOULDER);
MAP_BUTTON(ImGuiKey_GamepadR1, SDL_GAMEPAD_BUTTON_RIGHT_SHOULDER);
MAP_ANALOG(ImGuiKey_GamepadL2, SDL_GAMEPAD_AXIS_LEFT_TRIGGER, 0.0f, 32767);
MAP_ANALOG(ImGuiKey_GamepadR2, SDL_GAMEPAD_AXIS_RIGHT_TRIGGER, 0.0f, 32767);
MAP_BUTTON(ImGuiKey_GamepadL3, SDL_GAMEPAD_BUTTON_LEFT_STICK);
MAP_BUTTON(ImGuiKey_GamepadR3, SDL_GAMEPAD_BUTTON_RIGHT_STICK);
MAP_ANALOG(ImGuiKey_GamepadLStickLeft, SDL_GAMEPAD_AXIS_LEFTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickRight, SDL_GAMEPAD_AXIS_LEFTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadLStickUp, SDL_GAMEPAD_AXIS_LEFTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadLStickDown, SDL_GAMEPAD_AXIS_LEFTY, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickLeft, SDL_GAMEPAD_AXIS_RIGHTX, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickRight, SDL_GAMEPAD_AXIS_RIGHTX, +thumb_dead_zone, +32767);
MAP_ANALOG(ImGuiKey_GamepadRStickUp, SDL_GAMEPAD_AXIS_RIGHTY, -thumb_dead_zone, -32768);
MAP_ANALOG(ImGuiKey_GamepadRStickDown, SDL_GAMEPAD_AXIS_RIGHTY, +thumb_dead_zone, +32767);
#undef MAP_BUTTON
#undef MAP_ANALOG
}
static void ImGui_ImplSDL3_UpdateMonitors()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Monitors.resize(0);
bd->WantUpdateMonitors = false;
int display_count;
SDL_DisplayID* displays = SDL_GetDisplays(&display_count);
for (int n = 0; n < display_count; n++)
{
// Warning: the validity of monitor DPI information on Windows depends on the application DPI awareness settings, which generally needs to be set in the manifest or at runtime.
SDL_DisplayID display_id = displays[n];
ImGuiPlatformMonitor monitor;
SDL_Rect r;
SDL_GetDisplayBounds(display_id, &r);
monitor.MainPos = monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.MainSize = monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
SDL_GetDisplayUsableBounds(display_id, &r);
monitor.WorkPos = ImVec2((float)r.x, (float)r.y);
monitor.WorkSize = ImVec2((float)r.w, (float)r.h);
// FIXME-VIEWPORT: On MacOS SDL reports actual monitor DPI scale, ignoring OS configuration. We may want to set
// DpiScale to cocoa_window.backingScaleFactor here.
monitor.DpiScale = SDL_GetDisplayContentScale(display_id);
monitor.PlatformHandle = (void*)(intptr_t)n;
platform_io.Monitors.push_back(monitor);
}
}
void ImGui_ImplSDL3_NewFrame()
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDL3_Init()?");
ImGuiIO& io = ImGui::GetIO();
// Setup display size (every frame to accommodate for window resizing)
int w, h;
int display_w, display_h;
SDL_GetWindowSize(bd->Window, &w, &h);
if (SDL_GetWindowFlags(bd->Window) & SDL_WINDOW_MINIMIZED)
w = h = 0;
SDL_GetWindowSizeInPixels(bd->Window, &display_w, &display_h);
io.DisplaySize = ImVec2((float)w, (float)h);
if (w > 0 && h > 0)
io.DisplayFramebufferScale = ImVec2((float)display_w / w, (float)display_h / h);
// Update monitors
if (bd->WantUpdateMonitors)
ImGui_ImplSDL3_UpdateMonitors();
// Setup time step (we don't use SDL_GetTicks() because it is using millisecond resolution)
// (Accept SDL_GetPerformanceCounter() not returning a monotonically increasing value. Happens in VMs and Emscripten, see #6189, #6114, #3644)
static Uint64 frequency = SDL_GetPerformanceFrequency();
Uint64 current_time = SDL_GetPerformanceCounter();
if (current_time <= bd->Time)
current_time = bd->Time + 1;
io.DeltaTime = bd->Time > 0 ? (float)((double)(current_time - bd->Time) / frequency) : (float)(1.0f / 60.0f);
bd->Time = current_time;
if (bd->PendingMouseLeaveFrame && bd->PendingMouseLeaveFrame >= ImGui::GetFrameCount() && bd->MouseButtonsDown == 0)
{
bd->MouseWindowID = 0;
bd->PendingMouseLeaveFrame = 0;
io.AddMousePosEvent(-FLT_MAX, -FLT_MAX);
}
// Our io.AddMouseViewportEvent() calls will only be valid when not capturing.
// Technically speaking testing for 'bd->MouseButtonsDown == 0' would be more rygorous, but testing for payload reduces noise and potential side-effects.
if (bd->MouseCanReportHoveredViewport && ImGui::GetDragDropPayload() == nullptr)
io.BackendFlags |= ImGuiBackendFlags_HasMouseHoveredViewport;
else
io.BackendFlags &= ~ImGuiBackendFlags_HasMouseHoveredViewport;
ImGui_ImplSDL3_UpdateMouseData();
ImGui_ImplSDL3_UpdateMouseCursor();
// Update game controllers (if enabled and available)
ImGui_ImplSDL3_UpdateGamepads();
}
//--------------------------------------------------------------------------------------------------------
// MULTI-VIEWPORT / PLATFORM INTERFACE SUPPORT
// This is an _advanced_ and _optional_ feature, allowing the backend to create and handle multiple viewports simultaneously.
// If you are new to dear imgui or creating a new binding for dear imgui, it is recommended that you completely ignore this section first..
//--------------------------------------------------------------------------------------------------------
// Helper structure we store in the void* RendererUserData field of each ImGuiViewport to easily retrieve our backend data.
struct ImGui_ImplSDL3_ViewportData
{
SDL_Window* Window;
Uint32 WindowID;
bool WindowOwned;
SDL_GLContext GLContext;
ImGui_ImplSDL3_ViewportData() { Window = nullptr; WindowID = 0; WindowOwned = false; GLContext = nullptr; }
~ImGui_ImplSDL3_ViewportData() { IM_ASSERT(Window == nullptr && GLContext == nullptr); }
};
static void ImGui_ImplSDL3_CreateWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_Data* bd = ImGui_ImplSDL3_GetBackendData();
ImGui_ImplSDL3_ViewportData* vd = IM_NEW(ImGui_ImplSDL3_ViewportData)();
viewport->PlatformUserData = vd;
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL3_ViewportData* main_viewport_data = (ImGui_ImplSDL3_ViewportData*)main_viewport->PlatformUserData;
// Share GL resources with main context
bool use_opengl = (main_viewport_data->GLContext != nullptr);
SDL_GLContext backup_context = nullptr;
if (use_opengl)
{
backup_context = SDL_GL_GetCurrentContext();
SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
SDL_GL_MakeCurrent(main_viewport_data->Window, main_viewport_data->GLContext);
}
Uint32 sdl_flags = 0;
sdl_flags |= use_opengl ? SDL_WINDOW_OPENGL : (bd->UseVulkan ? SDL_WINDOW_VULKAN : 0);
sdl_flags |= SDL_GetWindowFlags(bd->Window);
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? SDL_WINDOW_BORDERLESS : 0;
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoDecoration) ? 0 : SDL_WINDOW_RESIZABLE;
#if !defined(_WIN32)
// See SDL hack in ImGui_ImplSDL3_ShowWindow().
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon) ? SDL_WINDOW_SKIP_TASKBAR : 0;
#endif
sdl_flags |= (viewport->Flags & ImGuiViewportFlags_TopMost) ? SDL_WINDOW_ALWAYS_ON_TOP : 0;
vd->Window = SDL_CreateWindow("No Title Yet", (int)viewport->Size.x, (int)viewport->Size.y, sdl_flags);
SDL_SetWindowPosition(vd->Window, (int)viewport->Pos.x, (int)viewport->Pos.y);
vd->WindowOwned = true;
if (use_opengl)
{
vd->GLContext = SDL_GL_CreateContext(vd->Window);
SDL_GL_SetSwapInterval(0);
}
if (use_opengl && backup_context)
SDL_GL_MakeCurrent(vd->Window, backup_context);
viewport->PlatformHandle = (void*)vd->Window;
viewport->PlatformHandleRaw = nullptr;
SDL_SysWMinfo info;
if (SDL_GetWindowWMInfo(vd->Window, &info, SDL_SYSWM_CURRENT_VERSION))
{
#if defined(SDL_VIDEO_DRIVER_WINDOWS)
viewport->PlatformHandleRaw = info.info.win.window;
#elif defined(__APPLE__) && defined(SDL_VIDEO_DRIVER_COCOA)
viewport->PlatformHandleRaw = (void*)info.info.cocoa.window;
#endif
}
}
static void ImGui_ImplSDL3_DestroyWindow(ImGuiViewport* viewport)
{
if (ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData)
{
if (vd->GLContext && vd->WindowOwned)
SDL_GL_DeleteContext(vd->GLContext);
if (vd->Window && vd->WindowOwned)
SDL_DestroyWindow(vd->Window);
vd->GLContext = nullptr;
vd->Window = nullptr;
IM_DELETE(vd);
}
viewport->PlatformUserData = viewport->PlatformHandle = nullptr;
}
static void ImGui_ImplSDL3_ShowWindow(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
#if defined(_WIN32)
HWND hwnd = (HWND)viewport->PlatformHandleRaw;
// SDL hack: Hide icon from task bar
// Note: SDL 2.0.6+ has a SDL_WINDOW_SKIP_TASKBAR flag which is supported under Windows but the way it create the window breaks our seamless transition.
if (viewport->Flags & ImGuiViewportFlags_NoTaskBarIcon)
{
LONG ex_style = ::GetWindowLong(hwnd, GWL_EXSTYLE);
ex_style &= ~WS_EX_APPWINDOW;
ex_style |= WS_EX_TOOLWINDOW;
::SetWindowLong(hwnd, GWL_EXSTYLE, ex_style);
}
// SDL hack: SDL always activate/focus windows :/
if (viewport->Flags & ImGuiViewportFlags_NoFocusOnAppearing)
{
::ShowWindow(hwnd, SW_SHOWNA);
return;
}
#endif
SDL_ShowWindow(vd->Window);
}
static ImVec2 ImGui_ImplSDL3_GetWindowPos(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
int x = 0, y = 0;
SDL_GetWindowPosition(vd->Window, &x, &y);
return ImVec2((float)x, (float)y);
}
static void ImGui_ImplSDL3_SetWindowPos(ImGuiViewport* viewport, ImVec2 pos)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowPosition(vd->Window, (int)pos.x, (int)pos.y);
}
static ImVec2 ImGui_ImplSDL3_GetWindowSize(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
int w = 0, h = 0;
SDL_GetWindowSize(vd->Window, &w, &h);
return ImVec2((float)w, (float)h);
}
static void ImGui_ImplSDL3_SetWindowSize(ImGuiViewport* viewport, ImVec2 size)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowSize(vd->Window, (int)size.x, (int)size.y);
}
static void ImGui_ImplSDL3_SetWindowTitle(ImGuiViewport* viewport, const char* title)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowTitle(vd->Window, title);
}
static void ImGui_ImplSDL3_SetWindowAlpha(ImGuiViewport* viewport, float alpha)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_SetWindowOpacity(vd->Window, alpha);
}
static void ImGui_ImplSDL3_SetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
SDL_RaiseWindow(vd->Window);
}
static bool ImGui_ImplSDL3_GetWindowFocus(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_INPUT_FOCUS) != 0;
}
static bool ImGui_ImplSDL3_GetWindowMinimized(ImGuiViewport* viewport)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
return (SDL_GetWindowFlags(vd->Window) & SDL_WINDOW_MINIMIZED) != 0;
}
static void ImGui_ImplSDL3_RenderWindow(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
}
static void ImGui_ImplSDL3_SwapBuffers(ImGuiViewport* viewport, void*)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
if (vd->GLContext)
{
SDL_GL_MakeCurrent(vd->Window, vd->GLContext);
SDL_GL_SwapWindow(vd->Window);
}
}
// Vulkan support (the Vulkan renderer needs to call a platform-side support function to create the surface)
// SDL is graceful enough to _not_ need <vulkan/vulkan.h> so we can safely include this.
#include <SDL3/SDL_vulkan.h>
static int ImGui_ImplSDL3_CreateVkSurface(ImGuiViewport* viewport, ImU64 vk_instance, const void* vk_allocator, ImU64* out_vk_surface)
{
ImGui_ImplSDL3_ViewportData* vd = (ImGui_ImplSDL3_ViewportData*)viewport->PlatformUserData;
(void)vk_allocator;
SDL_bool ret = SDL_Vulkan_CreateSurface(vd->Window, (VkInstance)vk_instance, (VkSurfaceKHR*)out_vk_surface);
return ret ? 0 : 1; // ret ? VK_SUCCESS : VK_NOT_READY
}
static void ImGui_ImplSDL3_InitPlatformInterface(SDL_Window* window, void* sdl_gl_context)
{
// Register platform interface (will be coupled with a renderer interface)
ImGuiPlatformIO& platform_io = ImGui::GetPlatformIO();
platform_io.Platform_CreateWindow = ImGui_ImplSDL3_CreateWindow;
platform_io.Platform_DestroyWindow = ImGui_ImplSDL3_DestroyWindow;
platform_io.Platform_ShowWindow = ImGui_ImplSDL3_ShowWindow;
platform_io.Platform_SetWindowPos = ImGui_ImplSDL3_SetWindowPos;
platform_io.Platform_GetWindowPos = ImGui_ImplSDL3_GetWindowPos;
platform_io.Platform_SetWindowSize = ImGui_ImplSDL3_SetWindowSize;
platform_io.Platform_GetWindowSize = ImGui_ImplSDL3_GetWindowSize;
platform_io.Platform_SetWindowFocus = ImGui_ImplSDL3_SetWindowFocus;
platform_io.Platform_GetWindowFocus = ImGui_ImplSDL3_GetWindowFocus;
platform_io.Platform_GetWindowMinimized = ImGui_ImplSDL3_GetWindowMinimized;
platform_io.Platform_SetWindowTitle = ImGui_ImplSDL3_SetWindowTitle;
platform_io.Platform_RenderWindow = ImGui_ImplSDL3_RenderWindow;
platform_io.Platform_SwapBuffers = ImGui_ImplSDL3_SwapBuffers;
platform_io.Platform_SetWindowAlpha = ImGui_ImplSDL3_SetWindowAlpha;
platform_io.Platform_CreateVkSurface = ImGui_ImplSDL3_CreateVkSurface;
// Register main window handle (which is owned by the main application, not by us)
// This is mostly for simplicity and consistency, so that our code (e.g. mouse handling etc.) can use same logic for main and secondary viewports.
ImGuiViewport* main_viewport = ImGui::GetMainViewport();
ImGui_ImplSDL3_ViewportData* vd = IM_NEW(ImGui_ImplSDL3_ViewportData)();
vd->Window = window;
vd->WindowID = SDL_GetWindowID(window);
vd->WindowOwned = false;
vd->GLContext = sdl_gl_context;
main_viewport->PlatformUserData = vd;
main_viewport->PlatformHandle = vd->Window;
}
static void ImGui_ImplSDL3_ShutdownPlatformInterface()
{
ImGui::DestroyPlatformWindows();
}
#if defined(__clang__)
#pragma clang diagnostic pop
#endif

258
gui/3rdparty/imgui/src/imgui_impl_sdlrenderer3.cpp vendored Normal file
View file

@ -0,0 +1,258 @@
// dear imgui: Renderer Backend for SDL_Renderer for SDL3
// (Requires: SDL 3.0.0+)
// Note how SDL_Renderer is an _optional_ component of SDL3.
// For a multi-platform app consider using e.g. SDL+DirectX on Windows and SDL+OpenGL on Linux/OSX.
// If your application will want to render any non trivial amount of graphics other than UI,
// please be aware that SDL_Renderer currently offers a limited graphic API to the end-user and
// it might be difficult to step out of those boundaries.
// Implemented features:
// [X] Renderer: User texture binding. Use 'SDL_Texture*' as ImTextureID. Read the FAQ about ImTextureID!
// [X] Renderer: Large meshes support (64k+ vertices) with 16-bit indices.
// Missing features:
// [ ] Renderer: Multi-viewport support (multiple windows).
// You can copy and use unmodified imgui_impl_* files in your project. See examples/ folder for examples of using this.
// If you are new to Dear ImGui, read documentation from the docs/ folder + read the top of imgui.cpp.
// Read online: https://github.com/ocornut/imgui/tree/master/docs
// CHANGELOG
// 2023-05-30: Initial version.
#include "imgui.h"
#include "imgui_impl_sdlrenderer3.h"
#if defined(_MSC_VER) && _MSC_VER <= 1500 // MSVC 2008 or earlier
#include <stddef.h> // intptr_t
#else
#include <stdint.h> // intptr_t
#endif
// Clang warnings with -Weverything
#if defined(__clang__)
#pragma clang diagnostic push
#pragma clang diagnostic ignored "-Wsign-conversion" // warning: implicit conversion changes signedness
#endif
// SDL
#include <SDL3/SDL.h>
#if !SDL_VERSION_ATLEAST(3,0,0)
#error This backend requires SDL 3.0.0+
#endif
// SDL_Renderer data
struct ImGui_ImplSDLRenderer3_Data
{
SDL_Renderer* SDLRenderer;
SDL_Texture* FontTexture;
ImGui_ImplSDLRenderer3_Data() { memset((void*)this, 0, sizeof(*this)); }
};
// Backend data stored in io.BackendRendererUserData to allow support for multiple Dear ImGui contexts
// It is STRONGLY preferred that you use docking branch with multi-viewports (== single Dear ImGui context + multiple windows) instead of multiple Dear ImGui contexts.
static ImGui_ImplSDLRenderer3_Data* ImGui_ImplSDLRenderer3_GetBackendData()
{
return ImGui::GetCurrentContext() ? (ImGui_ImplSDLRenderer3_Data*)ImGui::GetIO().BackendRendererUserData : nullptr;
}
// Functions
bool ImGui_ImplSDLRenderer3_Init(SDL_Renderer* renderer)
{
ImGuiIO& io = ImGui::GetIO();
IM_ASSERT(io.BackendRendererUserData == nullptr && "Already initialized a renderer backend!");
IM_ASSERT(renderer != nullptr && "SDL_Renderer not initialized!");
// Setup backend capabilities flags
ImGui_ImplSDLRenderer3_Data* bd = IM_NEW(ImGui_ImplSDLRenderer3_Data)();
io.BackendRendererUserData = (void*)bd;
io.BackendRendererName = "imgui_impl_sdlrenderer3";
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset; // We can honor the ImDrawCmd::VtxOffset field, allowing for large meshes.
bd->SDLRenderer = renderer;
return true;
}
void ImGui_ImplSDLRenderer3_Shutdown()
{
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
IM_ASSERT(bd != nullptr && "No renderer backend to shutdown, or already shutdown?");
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer3_DestroyDeviceObjects();
io.BackendRendererName = nullptr;
io.BackendRendererUserData = nullptr;
io.BackendFlags &= ~ImGuiBackendFlags_RendererHasVtxOffset;
IM_DELETE(bd);
}
static void ImGui_ImplSDLRenderer3_SetupRenderState()
{
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
// Clear out any viewports and cliprect set by the user
// FIXME: Technically speaking there are lots of other things we could backup/setup/restore during our render process.
SDL_SetRenderViewport(bd->SDLRenderer, nullptr);
SDL_SetRenderClipRect(bd->SDLRenderer, nullptr);
}
void ImGui_ImplSDLRenderer3_NewFrame()
{
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
IM_ASSERT(bd != nullptr && "Did you call ImGui_ImplSDLRenderer3_Init()?");
if (!bd->FontTexture)
ImGui_ImplSDLRenderer3_CreateDeviceObjects();
}
void ImGui_ImplSDLRenderer3_RenderDrawData(ImDrawData* draw_data)
{
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
// If there's a scale factor set by the user, use that instead
// If the user has specified a scale factor to SDL_Renderer already via SDL_RenderSetScale(), SDL will scale whatever we pass
// to SDL_RenderGeometryRaw() by that scale factor. In that case we don't want to be also scaling it ourselves here.
float rsx = 1.0f;
float rsy = 1.0f;
SDL_GetRenderScale(bd->SDLRenderer, &rsx, &rsy);
ImVec2 render_scale;
render_scale.x = (rsx == 1.0f) ? draw_data->FramebufferScale.x : 1.0f;
render_scale.y = (rsy == 1.0f) ? draw_data->FramebufferScale.y : 1.0f;
// Avoid rendering when minimized, scale coordinates for retina displays (screen coordinates != framebuffer coordinates)
int fb_width = (int)(draw_data->DisplaySize.x * render_scale.x);
int fb_height = (int)(draw_data->DisplaySize.y * render_scale.y);
if (fb_width == 0 || fb_height == 0)
return;
// Backup SDL_Renderer state that will be modified to restore it afterwards
struct BackupSDLRendererState
{
SDL_Rect Viewport;
bool ClipEnabled;
SDL_Rect ClipRect;
};
BackupSDLRendererState old = {};
old.ClipEnabled = SDL_RenderClipEnabled(bd->SDLRenderer) == SDL_TRUE;
SDL_GetRenderViewport(bd->SDLRenderer, &old.Viewport);
SDL_GetRenderClipRect(bd->SDLRenderer, &old.ClipRect);
// Will project scissor/clipping rectangles into framebuffer space
ImVec2 clip_off = draw_data->DisplayPos; // (0,0) unless using multi-viewports
ImVec2 clip_scale = render_scale;
// Render command lists
ImGui_ImplSDLRenderer3_SetupRenderState();
for (int n = 0; n < draw_data->CmdListsCount; n++)
{
const ImDrawList* cmd_list = draw_data->CmdLists[n];
const ImDrawVert* vtx_buffer = cmd_list->VtxBuffer.Data;
const ImDrawIdx* idx_buffer = cmd_list->IdxBuffer.Data;
for (int cmd_i = 0; cmd_i < cmd_list->CmdBuffer.Size; cmd_i++)
{
const ImDrawCmd* pcmd = &cmd_list->CmdBuffer[cmd_i];
if (pcmd->UserCallback)
{
// User callback, registered via ImDrawList::AddCallback()
// (ImDrawCallback_ResetRenderState is a special callback value used by the user to request the renderer to reset render state.)
if (pcmd->UserCallback == ImDrawCallback_ResetRenderState)
ImGui_ImplSDLRenderer3_SetupRenderState();
else
pcmd->UserCallback(cmd_list, pcmd);
}
else
{
// Project scissor/clipping rectangles into framebuffer space
ImVec2 clip_min((pcmd->ClipRect.x - clip_off.x) * clip_scale.x, (pcmd->ClipRect.y - clip_off.y) * clip_scale.y);
ImVec2 clip_max((pcmd->ClipRect.z - clip_off.x) * clip_scale.x, (pcmd->ClipRect.w - clip_off.y) * clip_scale.y);
if (clip_min.x < 0.0f) { clip_min.x = 0.0f; }
if (clip_min.y < 0.0f) { clip_min.y = 0.0f; }
if (clip_max.x > (float)fb_width) { clip_max.x = (float)fb_width; }
if (clip_max.y > (float)fb_height) { clip_max.y = (float)fb_height; }
if (clip_max.x <= clip_min.x || clip_max.y <= clip_min.y)
continue;
SDL_Rect r = { (int)(clip_min.x), (int)(clip_min.y), (int)(clip_max.x - clip_min.x), (int)(clip_max.y - clip_min.y) };
SDL_SetRenderClipRect(bd->SDLRenderer, &r);
const float* xy = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, pos));
const float* uv = (const float*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, uv));
#if SDL_VERSION_ATLEAST(2,0,19)
const SDL_Color* color = (const SDL_Color*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, col)); // SDL 2.0.19+
#else
const int* color = (const int*)(const void*)((const char*)(vtx_buffer + pcmd->VtxOffset) + IM_OFFSETOF(ImDrawVert, col)); // SDL 2.0.17 and 2.0.18
#endif
// Bind texture, Draw
SDL_Texture* tex = (SDL_Texture*)pcmd->GetTexID();
SDL_RenderGeometryRaw(bd->SDLRenderer, tex,
xy, (int)sizeof(ImDrawVert),
color, (int)sizeof(ImDrawVert),
uv, (int)sizeof(ImDrawVert),
cmd_list->VtxBuffer.Size - pcmd->VtxOffset,
idx_buffer + pcmd->IdxOffset, pcmd->ElemCount, sizeof(ImDrawIdx));
}
}
}
// Restore modified SDL_Renderer state
SDL_SetRenderViewport(bd->SDLRenderer, &old.Viewport);
SDL_SetRenderClipRect(bd->SDLRenderer, old.ClipEnabled ? &old.ClipRect : nullptr);
}
// Called by Init/NewFrame/Shutdown
bool ImGui_ImplSDLRenderer3_CreateFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
// Build texture atlas
unsigned char* pixels;
int width, height;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height); // Load as RGBA 32-bit (75% of the memory is wasted, but default font is so small) because it is more likely to be compatible with user's existing shaders. If your ImTextureId represent a higher-level concept than just a GL texture id, consider calling GetTexDataAsAlpha8() instead to save on GPU memory.
// Upload texture to graphics system
// (Bilinear sampling is required by default. Set 'io.Fonts->Flags |= ImFontAtlasFlags_NoBakedLines' or 'style.AntiAliasedLinesUseTex = false' to allow point/nearest sampling)
bd->FontTexture = SDL_CreateTexture(bd->SDLRenderer, SDL_PIXELFORMAT_ABGR8888, SDL_TEXTUREACCESS_STATIC, width, height);
if (bd->FontTexture == nullptr)
{
SDL_Log("error creating texture");
return false;
}
SDL_UpdateTexture(bd->FontTexture, nullptr, pixels, 4 * width);
SDL_SetTextureBlendMode(bd->FontTexture, SDL_BLENDMODE_BLEND);
SDL_SetTextureScaleMode(bd->FontTexture, SDL_SCALEMODE_LINEAR);
// Store our identifier
io.Fonts->SetTexID((ImTextureID)(intptr_t)bd->FontTexture);
return true;
}
void ImGui_ImplSDLRenderer3_DestroyFontsTexture()
{
ImGuiIO& io = ImGui::GetIO();
ImGui_ImplSDLRenderer3_Data* bd = ImGui_ImplSDLRenderer3_GetBackendData();
if (bd->FontTexture)
{
io.Fonts->SetTexID(0);
SDL_DestroyTexture(bd->FontTexture);
bd->FontTexture = nullptr;
}
}
bool ImGui_ImplSDLRenderer3_CreateDeviceObjects()
{
return ImGui_ImplSDLRenderer3_CreateFontsTexture();
}
void ImGui_ImplSDLRenderer3_DestroyDeviceObjects()
{
ImGui_ImplSDLRenderer3_DestroyFontsTexture();
}
#if defined(__clang__)
#pragma clang diagnostic pop
#endif

4110
gui/3rdparty/imgui/src/imgui_tables.cpp vendored Normal file
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8754
gui/3rdparty/imgui/src/imgui_widgets.cpp vendored Normal file
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4
gui/CMakeLists.txt
View file

@ -1,9 +1,13 @@
add_subdirectory(3rdparty/sdl)
add_subdirectory(3rdparty/imgui)
add_executable(netsim
"src/main.cpp"
)
target_sources(netsim PRIVATE ${IMGUI_SOURCES})
target_include_directories(netsim PRIVATE ${IMGUI_INCLUDE_DIR})
target_link_libraries(netsim PRIVATE
libnetsim
SDL3::SDL3

46
gui/src/main.cpp
View file

@ -1,6 +1,10 @@
#include <iostream>
#include <SDL.h>
#include "imgui.h"
#include "imgui_impl_sdl3.h"
#include "imgui_impl_sdlrenderer3.h"
#include "Netsim.hpp"
int main(int argc, char** argv) {
@ -11,18 +15,26 @@ int main(int argc, char** argv) {
SDL_CreateWindowAndRenderer(1000, 1000, NULL, &window, &renderer);
SDL_SetWindowTitle(window, "netsim");
IMGUI_CHECKVERSION();
ImGui::CreateContext();
ImGui_ImplSDL3_InitForSDLRenderer(window, renderer);
ImGui_ImplSDLRenderer3_Init(renderer);
ImGuiIO& io = ImGui::GetIO();
io.ConfigFlags |= ImGuiConfigFlags_DockingEnable;
ImGui::StyleColorsDark();
Network network("Testnet");
network.addDevice(Device::create("FA:56:A7:12:04:ED"));
network.addDevice(Device::create("87:1A:B5:77:3D:33"));
std::cout << network << std::endl;
bool shouldClose = false;
SDL_Event event;
while (!shouldClose) {
while (SDL_PollEvent(&event)) {
ImGui_ImplSDL3_ProcessEvent(&event);
switch (event.type) {
case SDL_EVENT_WINDOW_CLOSE_REQUESTED:
case SDL_EVENT_QUIT:
@ -34,9 +46,33 @@ int main(int argc, char** argv) {
SDL_SetRenderDrawColor(renderer, 0, 0, 0, 255);
SDL_RenderClear(renderer);
ImGui_ImplSDL3_NewFrame();
ImGui_ImplSDLRenderer3_NewFrame();
ImGui::NewFrame();
if (ImGui::BeginMainMenuBar()) {
if (ImGui::BeginMenu("New...")) {
if (ImGui::MenuItem("Host")) {
network.addDevice(Device::create("12:34:56:78:9A:BC"));
};
ImGui::EndMenu();
}
ImGui::EndMainMenuBar();
}
ImGui::Render();
ImGui_ImplSDLRenderer3_RenderDrawData(ImGui::GetDrawData());
SDL_RenderPresent(renderer);
}
ImGui_ImplSDLRenderer3_Shutdown();
ImGui_ImplSDL3_Shutdown();
ImGui::DestroyContext();
SDL_DestroyRenderer(renderer);
SDL_DestroyWindow(window);