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Fixed crash at startup on OpenGL 1.1 cards

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This commit is contained in:
Enrico Turri 2018-06-20 14:34:20 +02:00
parent 725b8524f2
commit 4803e7fc84
2 changed files with 19 additions and 33 deletions
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50
xs/src/slic3r/GUI/GLCanvas3DManager.cpp
View file

@ -26,33 +26,23 @@ GLCanvas3DManager::GLInfo::GLInfo()
{
}
bool GLCanvas3DManager::GLInfo::detect()
void GLCanvas3DManager::GLInfo::detect()
{
const char* data = (const char*)::glGetString(GL_VERSION);
if (data == nullptr)
return false;
version = data;
if (data != nullptr)
version = data;
data = (const char*)::glGetString(GL_SHADING_LANGUAGE_VERSION);
if (data == nullptr)
return false;
glsl_version = data;
if (data != nullptr)
glsl_version = data;
data = (const char*)::glGetString(GL_VENDOR);
if (data == nullptr)
return false;
vendor = data;
if (data != nullptr)
vendor = data;
data = (const char*)::glGetString(GL_RENDERER);
if (data == nullptr)
return false;
renderer = data;
return true;
if (data != nullptr)
renderer = data;
}
bool GLCanvas3DManager::GLInfo::is_version_greater_or_equal_to(unsigned int major, unsigned int minor) const
@ -94,10 +84,10 @@ std::string GLCanvas3DManager::GLInfo::to_string(bool format_as_html, bool exten
std::string line_end = format_as_html ? "<br>" : "\n";
out << h2_start << "OpenGL installation" << h2_end << line_end;
out << b_start << "GL version: " << b_end << version << line_end;
out << b_start << "Vendor: " << b_end << vendor << line_end;
out << b_start << "Renderer: " << b_end << renderer << line_end;
out << b_start << "GLSL version: " << b_end << glsl_version << line_end;
out << b_start << "GL version: " << b_end << (version.empty() ? "N/A" : version) << line_end;
out << b_start << "Vendor: " << b_end << (vendor.empty() ? "N/A" : vendor) << line_end;
out << b_start << "Renderer: " << b_end << (renderer.empty() ? "N/A" : renderer) << line_end;
out << b_start << "GLSL version: " << b_end << (glsl_version.empty() ? "N/A" : glsl_version) << line_end;
if (extensions)
{
@ -195,15 +185,11 @@ void GLCanvas3DManager::init_gl()
if (!m_gl_initialized)
{
glewInit();
if (m_gl_info.detect())
{
const AppConfig* config = GUI::get_app_config();
m_use_legacy_opengl = (config == nullptr) || (config->get("use_legacy_opengl") == "1");
m_use_VBOs = !m_use_legacy_opengl && m_gl_info.is_version_greater_or_equal_to(2, 0);
m_gl_initialized = true;
}
else
throw std::runtime_error(std::string("Unable to initialize OpenGL driver\n"));
m_gl_info.detect();
const AppConfig* config = GUI::get_app_config();
m_use_legacy_opengl = (config == nullptr) || (config->get("use_legacy_opengl") == "1");
m_use_VBOs = !m_use_legacy_opengl && m_gl_info.is_version_greater_or_equal_to(2, 0);
m_gl_initialized = true;
}
}

2
xs/src/slic3r/GUI/GLCanvas3DManager.hpp
View file

@ -35,7 +35,7 @@ class GLCanvas3DManager
GLInfo();
bool detect();
void detect();
bool is_version_greater_or_equal_to(unsigned int major, unsigned int minor) const;
std::string to_string(bool format_as_html, bool extensions) const;