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.