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Use glad instead of GLEW to load OpenGL

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This commit is contained in:
Dan Paulat 2025-07-12 16:23:02 -05:00
parent 6cb668f546
commit d5cda9b353
5 changed files with 26 additions and 12 deletions
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2
external/CMakeLists.txt vendored
View file

@ -6,6 +6,7 @@ set_property(DIRECTORY
PROPERTY CMAKE_CONFIGURE_DEPENDS PROPERTY CMAKE_CONFIGURE_DEPENDS
aws-sdk-cpp.cmake aws-sdk-cpp.cmake
date.cmake date.cmake
glad.cmake
hsluv-c.cmake hsluv-c.cmake
imgui.cmake imgui.cmake
maplibre-native-qt.cmake maplibre-native-qt.cmake
@ -16,6 +17,7 @@ set_property(DIRECTORY
include(aws-sdk-cpp.cmake) include(aws-sdk-cpp.cmake)
include(date.cmake) include(date.cmake)
include(glad.cmake)
include(hsluv-c.cmake) include(hsluv-c.cmake)
include(imgui.cmake) include(imgui.cmake)
include(maplibre-native-qt.cmake) include(maplibre-native-qt.cmake)

11
external/glad.cmake vendored Normal file
View file

@ -0,0 +1,11 @@
cmake_minimum_required(VERSION 3.24)
set(PROJECT_NAME scwx-glad)
# Path to glad directory
set(GLAD_SOURCES_DIR "${CMAKE_CURRENT_SOURCE_DIR}/glad/")
# Path to glad CMake files
add_subdirectory("${GLAD_SOURCES_DIR}/cmake" glad_cmake)
# Specify glad settings
glad_add_library(glad_gl_core_33 LOADER REPRODUCIBLE API gl:core=3.3)

5
scwx-qt/scwx-qt.cmake
View file

@ -745,7 +745,7 @@ target_link_libraries(scwx-qt PUBLIC Qt${QT_VERSION_MAJOR}::Widgets
GeographicLib::GeographicLib GeographicLib::GeographicLib
GEOS::geos GEOS::geos
GEOS::geos_cxx_flags GEOS::geos_cxx_flags
GLEW::GLEW glad_gl_core_33
glm::glm glm::glm
imgui imgui
qt6ct-common qt6ct-common
@ -753,7 +753,8 @@ target_link_libraries(scwx-qt PUBLIC Qt${QT_VERSION_MAJOR}::Widgets
SQLite::SQLite3 SQLite::SQLite3
wxdata) wxdata)
target_link_libraries(supercell-wx PRIVATE scwx-qt target_link_libraries(supercell-wx PRIVATE GLEW::GLEW
scwx-qt
wxdata) wxdata)
if (LINUX) if (LINUX)

2
scwx-qt/source/scwx/qt/gl/gl.hpp
View file

@ -1,6 +1,6 @@
#pragma once #pragma once
#include <GL/glew.h> #include <glad/gl.h>
#define SCWX_GL_CHECK_ERROR() \ #define SCWX_GL_CHECK_ERROR() \
{ \ { \

18
scwx-qt/source/scwx/qt/gl/gl_context.cpp
View file

@ -57,21 +57,21 @@ void GlContext::Impl::InitializeGL()
return; return;
} }
const GLenum error = glewInit(); const int gladVersion = gladLoaderLoadGL();
if (error != GLEW_OK) if (!gladVersion)
{ {
auto glewErrorString = logger_->error("gladLoaderLoadGL failed");
reinterpret_cast<const char*>(glewGetErrorString(error));
logger_->error("glewInit failed: {}", glewErrorString);
QMessageBox::critical( QMessageBox::critical(
nullptr, nullptr, "Supercell Wx", "Unable to initialize OpenGL");
"Supercell Wx",
QString("Unable to initialize OpenGL: %1").arg(glewErrorString));
throw std::runtime_error("Unable to initialize OpenGL"); throw std::runtime_error("Unable to initialize OpenGL");
} }
logger_->info("GLAD initialization complete: OpenGL {}.{}",
GLAD_VERSION_MAJOR(gladVersion),
GLAD_VERSION_MINOR(gladVersion));
auto glVersion = reinterpret_cast<const char*>(glGetString(GL_VERSION)); auto glVersion = reinterpret_cast<const char*>(glGetString(GL_VERSION));
auto glVendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR)); auto glVendor = reinterpret_cast<const char*>(glGetString(GL_VENDOR));
auto glRenderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER)); auto glRenderer = reinterpret_cast<const char*>(glGetString(GL_RENDERER));
@ -86,7 +86,7 @@ void GlContext::Impl::InitializeGL()
glGetIntegerv(GL_MAJOR_VERSION, &major); glGetIntegerv(GL_MAJOR_VERSION, &major);
glGetIntegerv(GL_MINOR_VERSION, &minor); glGetIntegerv(GL_MINOR_VERSION, &minor);
if (major < 3 || (major == 3 && minor < 3)) if (major < 3 || (major == 3 && minor < 3) || !GLAD_GL_VERSION_3_3)
{ {
logger_->error( logger_->error(
"OpenGL 3.3 or greater is required, found {}.{}", major, minor); "OpenGL 3.3 or greater is required, found {}.{}", major, minor);