it is crash with imgui-SDL renderer

[mumin16]

/* // Start the Dear ImGui frame ImGui_ImplSDLRenderer2_NewFrame(); ImGui_ImplSDL2_NewFrame(); ImGui::NewFrame();

// 1. Show the big demo window (Most of the sample code is in
// ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear
// ImGui!).
if (show_demo_window)
  ImGui::ShowDemoWindow(&show_demo_window);

ImGui::Render();

*/

// Rendering triangle

    sg_begin_default_pass(&pass_action, view_width, view_height);
    sg_apply_pipeline(pip);
    sg_apply_bindings(&bind);
    sg_draw(0, 3, 1);
    sg_end_pass();
    sg_commit();

//ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());
SDL_RenderPresent(renderer);

[floooh]

I will need some more information I'm afraid.

How does the error manifest, any error messages, ideally something to build and run myself.

[mumin16]

include <GLES3/gl3.h>

include <SDL2/SDL.h>

include <imgui/backends/imgui_impl_sdl2.h>

include <imgui/backends/imgui_impl_sdlrenderer2.h>

include <imgui/imgui.h>

define SOKOL_IMPL

define SOKOL_GLES3

include "sokol_gfx.h"

include "sokol_log.h"

int view_width = 1280, view_height = 720;

int main(int, char **) {

// Setup SDL if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER) != 0) { printf("Error: %s\n", SDL_GetError()); return -1; }

// Create window with SDL_Renderer graphics context SDL_WindowFlags window_flags = (SDL_WindowFlags)(SDL_WINDOW_RESIZABLE | SDL_WINDOW_ALLOW_HIGHDPI); SDL_Window window = SDL_CreateWindow( "Dear ImGui SDL2+SDL_Renderer example", SDL_WINDOWPOS_CENTERED, SDL_WINDOWPOS_CENTERED, view_width, view_height, window_flags); SDL_Renderer renderer = SDL_CreateRenderer( window, -1, SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED); if (renderer == nullptr) { SDL_Log("Error creating SDL_Renderer!"); return 0; } // SDL_RendererInfo info; // SDL_GetRendererInfo(renderer, &info); // SDL_Log("Current SDL_Renderer: %s", info.name);

// Setup Dear ImGui context IMGUI_CHECKVERSION(); ImGui::CreateContext(); ImGuiIO &io = ImGui::GetIO(); (void)io; io.ConfigFlags |= ImGuiConfigFlags_NavEnableKeyboard; // Enable Keyboard Controls io.ConfigFlags |= ImGuiConfigFlags_NavEnableGamepad; // Enable Gamepad Controls

// Setup Dear ImGui style ImGui::StyleColorsDark(); // ImGui::StyleColorsLight();

// Setup Platform/Renderer backends ImGui_ImplSDL2_InitForSDLRenderer(window, renderer); ImGui_ImplSDLRenderer2_Init(renderer);

// Load Fonts // - If no fonts are loaded, dear imgui will use the default font. You can // also load multiple fonts and use ImGui::PushFont()/PopFont() to select // them. // - AddFontFromFileTTF() will return the ImFont so you can store it if you // need to select the font among multiple. // - If the file cannot be loaded, the function will return a nullptr. Please // handle those errors in your application (e.g. use an assertion, or display // an error and quit). // - The fonts will be rasterized at a given size (w/ oversampling) and stored // into a texture when calling ImFontAtlas::Build()/GetTexDataAsXXXX(), which // ImGui_ImplXXXX_NewFrame below will call. // - Use '#define IMGUI_ENABLE_FREETYPE' in your imconfig file to use Freetype // for higher quality font rendering. // - Read 'docs/FONTS.md' for more instructions and details. // - Remember that in C/C++ if you want to include a backslash \ in a string // literal you need to write a double backslash \ ! // io.Fonts->AddFontDefault(); // io.Fonts->AddFontFromFileTTF("c:\Windows\Fonts\segoeui.ttf", 18.0f); // io.Fonts->AddFontFromFileTTF("../../misc/fonts/DroidSans.ttf", 16.0f); // io.Fonts->AddFontFromFileTTF("../../misc/fonts/Roboto-Medium.ttf", 16.0f); // io.Fonts->AddFontFromFileTTF("../../misc/fonts/Cousine-Regular.ttf", 15.0f); // ImFont font = // io.Fonts->AddFontFromFileTTF("c:\Windows\Fonts\ArialUni.ttf", 18.0f, // nullptr, io.Fonts->GetGlyphRangesJapanese()); IM_ASSERT(font != nullptr);

// Our state bool show_demo_window = true; ImVec4 clear_color = ImVec4(0.45f, 0.55f, 0.60f, 1.00f);

/ setup sokol_gfx / sg_setup({ .logger.func = slog_func, });

/ a vertex buffer / const float vertices[] = {// positions // colors 0.0f, 0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 0.5f, -0.5f, 0.5f, 0.0f, 1.0f, 0.0f, 1.0f, -0.5f, -0.5f, 0.5f, 0.0f, 0.0f, 1.0f, 1.0f}; sg_buffer vbuf = sg_make_buffer({.data = SG_RANGE(vertices)});

/ a shader / sg_shader shd = sg_make_shader({.vs.source = "#version 300 es\n" "in vec4 position;\n" "in vec4 color0;\n" "out vec4 color;\n" "void main() {\n" " gl_Position = position;\n" " color = color0;\n" "}\n", .fs.source = "#version 300 es\n" "precision mediump float;\n" "in vec4 color;\n" "out vec4 frag_color;\n" "void main() {\n" " frag_color = color;\n" "}\n"});

/ a pipeline state object (default render states are fine for triangle) / sg_pipeline pip = sg_make_pipeline( {.shader = shd, .layout = {.attrs = {[0].format = SG_VERTEXFORMAT_FLOAT3, [1].format = SG_VERTEXFORMAT_FLOAT4}}});

/ resource bindings / sg_bindings bind = {.vertex_buffers[0] = vbuf};

/ default pass action (clear to grey) / sg_pass_action pass_action = {0};

// Main loop bool done = false; while (!done) { // Poll and handle events (inputs, window resize, etc.) // 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. SDL_Event event; while (SDL_PollEvent(&event)) { ImGui_ImplSDL2_ProcessEvent(&event); if (event.type == SDL_QUIT) done = true; if (event.type == SDL_WINDOWEVENT && event.window.event == SDL_WINDOWEVENT_CLOSE && event.window.windowID == SDL_GetWindowID(window)) done = true; }

// Start the Dear ImGui frame
ImGui_ImplSDLRenderer2_NewFrame();
ImGui_ImplSDL2_NewFrame();
ImGui::NewFrame();

// 1. Show the big demo window (Most of the sample code is in
// ImGui::ShowDemoWindow()! You can browse its code to learn more about Dear
// ImGui!).
if (show_demo_window)
  ImGui::ShowDemoWindow(&show_demo_window);

ImGui::Render();

// Rendering triangle

sg_begin_default_pass(&pass_action, view_width, view_height);
sg_apply_pipeline(pip);
sg_apply_bindings(&bind);
sg_draw(0, 3, 1);
sg_end_pass();
sg_commit();

ImGui_ImplSDLRenderer2_RenderDrawData(ImGui::GetDrawData());
SDL_RenderPresent(renderer);

}

/ cleanup / sg_shutdown();

// Cleanup ImGui_ImplSDLRenderer2_Shutdown(); ImGui_ImplSDL2_Shutdown(); ImGui::DestroyContext();

SDL_DestroyRenderer(renderer); SDL_DestroyWindow(window); SDL_Quit();

return 0; }

[mumin16]

sokol_gfx.h:8204: void _sg_gl_begin_pass(_sg_pass_t , const sg_pass_action , int, int): Assertion `glGetError() == 0' failed.