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Add comment explaining bare glGetError

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This commit is contained in:
Zach Pomerantz 2016-03-22 12:04:24 -07:00
parent f57332e4be
commit 64ced6ee04
3 changed files with 4 additions and 7 deletions
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7
libraries/gpu/src/gpu/GLBackend.cpp
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@ -87,18 +87,15 @@ void GLBackend::init() {
static std::once_flag once; static std::once_flag once;
std::call_once(once, [] { std::call_once(once, [] {
qCDebug(gpulogging) << "GL Version: " << QString((const char*) glGetString(GL_VERSION)); qCDebug(gpulogging) << "GL Version: " << QString((const char*) glGetString(GL_VERSION));
qCDebug(gpulogging) << "GL Shader Language Version: " << QString((const char*) glGetString(GL_SHADING_LANGUAGE_VERSION)); qCDebug(gpulogging) << "GL Shader Language Version: " << QString((const char*) glGetString(GL_SHADING_LANGUAGE_VERSION));
qCDebug(gpulogging) << "GL Vendor: " << QString((const char*) glGetString(GL_VENDOR)); qCDebug(gpulogging) << "GL Vendor: " << QString((const char*) glGetString(GL_VENDOR));
qCDebug(gpulogging) << "GL Renderer: " << QString((const char*) glGetString(GL_RENDERER)); qCDebug(gpulogging) << "GL Renderer: " << QString((const char*) glGetString(GL_RENDERER));
glewExperimental = true; glewExperimental = true;
GLenum err = glewInit(); GLenum err = glewInit();
glGetError(); glGetError(); // clear the potential error from glewExperimental
if (GLEW_OK != err) { if (GLEW_OK != err) {
/* Problem: glewInit failed, something is seriously wrong. */ // glewInit failed, something is seriously wrong.
qCDebug(gpulogging, "Error: %s\n", glewGetErrorString(err)); qCDebug(gpulogging, "Error: %s\n", glewGetErrorString(err));
} }
qCDebug(gpulogging, "Status: Using GLEW %s\n", glewGetString(GLEW_VERSION)); qCDebug(gpulogging, "Status: Using GLEW %s\n", glewGetString(GLEW_VERSION));

2
plugins/oculus/src/OculusBaseDisplayPlugin.cpp
View file

@ -30,7 +30,7 @@ bool OculusBaseDisplayPlugin::isSupported() const {
void OculusBaseDisplayPlugin::customizeContext() { void OculusBaseDisplayPlugin::customizeContext() {
glewExperimental = true; glewExperimental = true;
GLenum err = glewInit(); GLenum err = glewInit();
glGetError(); glGetError(); // clear the potential error from glewExperimental
Parent::customizeContext(); Parent::customizeContext();
} }

2
plugins/openvr/src/OpenVrDisplayPlugin.cpp
View file

@ -101,7 +101,7 @@ void OpenVrDisplayPlugin::customizeContext() {
std::call_once(once, []{ std::call_once(once, []{
glewExperimental = true; glewExperimental = true;
GLenum err = glewInit(); GLenum err = glewInit();
glGetError(); glGetError(); // clear the potential error from glewExperimental
}); });
Parent::customizeContext(); Parent::customizeContext();
} }