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Code Issues 151 Wiki Activity

Require OpenGL 4.6 core context and regenerate glad

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This commit is contained in:
Hirek
2026-10-15 01:39:32 +02:00
parent 61bfc6eb1a
commit 9e64244ebd
14 changed files with 1787 additions and 3998 deletions
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49
application/application.cpp
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@@ -1201,6 +1201,33 @@ int eu07_application::init_locale()
return 0;
}
// the context of the required version couldn't be created. a context with default settings tells which version the
// driver does provide, so the user can be told what is missing
static std::string describe_gl_driver()
{
glfwDefaultWindowHints();
glfwWindowHint(GLFW_VISIBLE, GLFW_FALSE);
auto *probe = glfwCreateWindow(64, 64, "eu07 opengl probe", nullptr, nullptr);
if (probe == nullptr)
return "no OpenGL context";
glfwMakeContextCurrent(probe);
std::string description;
auto const getstring = reinterpret_cast<PFNGLGETSTRINGPROC>(glfwGetProcAddress("glGetString"));
if (getstring != nullptr)
{
auto const text = [&](GLenum const Name) {
auto const *value = reinterpret_cast<char const *>(getstring(Name));
return std::string(value != nullptr ? value : "?");
};
description = "OpenGL " + text(GL_VERSION) + ", " + text(GL_RENDERER) + " (" + text(GL_VENDOR) + ")";
}
glfwMakeContextCurrent(nullptr);
glfwDestroyWindow(probe);
return description.empty() ? "unknown OpenGL version" : description;
}
int eu07_application::init_glfw()
{
{
@@ -1244,11 +1271,12 @@ int eu07_application::init_glfw()
}
else
{
// activate core profile for opengl 3.3 renderer
// activate core profile for opengl 4.6 renderer
// NOTE: the hints stay in effect for the additional windows and shared contexts created later through window()
glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GLFW_TRUE);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 4);
glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 6);
if (Global.gfx_gldebug)
glfwWindowHint(GLFW_OPENGL_DEBUG_CONTEXT, GLFW_TRUE);
@@ -1268,6 +1296,21 @@ int eu07_application::init_glfw()
if (mainwindow == nullptr)
{
if (needs_ogl())
{
char const *glfwerror = nullptr;
glfwGetError(&glfwerror);
std::string const reason = (glfwerror != nullptr ? glfwerror : "unknown error");
auto const driver = describe_gl_driver();
ErrorLog("Bad init: failed to create OpenGL 4.6 core profile context (" + reason + "); the graphics card/driver provides: " + driver);
#ifdef _WIN32
auto const message = "MaSzyna requires OpenGL 4.6 (core profile), but the OpenGL 4.6 context could not be created.\n\n"
"Your graphics card/driver provides:\n" + driver + "\n\n"
"Details: " + reason + "\n\n"
"Update the graphics driver or use a graphics card with OpenGL 4.6 support.";
MessageBoxA(nullptr, message.c_str(), "MaSzyna", MB_ICONERROR | MB_OK);
#endif
}
ErrorLog("Bad init: failed to create glfw window");
return -1;
}