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Specify minimum OpenGL version in gl library's config

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Note: Defines minimum OpenGL version as 4.1 in anticipation of Interface
soon properly supporting both 4.1 and 4.3 on Windows.
This commit is contained in:
David Rowe 2016-01-29 13:03:54 +13:00
parent 2020514974
commit 6232a83f43
2 changed files with 7 additions and 5 deletions
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1
libraries/gl/src/gl/Config.h
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@ -19,6 +19,7 @@
#define GPU_LEGACY 0
#define GPU_CORE_41 410
#define GPU_CORE_43 430
#define GPU_CORE_MINIMUM GPU_CORE_41
#if defined(__APPLE__)

11
libraries/gl/src/gl/OpenGLVersionChecker.cpp
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@ -14,6 +14,7 @@
#include <QMessageBox>
#include <QRegularExpression>
#include "Config.h"
#include "GLWidget.h"
OpenGLVersionChecker::OpenGLVersionChecker(int& argc, char** argv) :
@ -35,13 +36,13 @@ bool OpenGLVersionChecker::isValidVersion() {
// - major_number.minor_number
// - major_number.minor_number.release_number
// Reference: https://www.opengl.org/sdk/docs/man/docbook4/xhtml/glGetString.xml
const int MINIMUM_OPENGL_MAJOR_VERSION = 4;
const int MINIMUM_OPENGL_MINOR_VERSION = 1;
QStringList versionParts = glVersion.split(QRegularExpression("[\\.\\s]"));
int majorNumber = versionParts[0].toInt();
int minorNumber = versionParts[1].toInt();
valid = (majorNumber > MINIMUM_OPENGL_MAJOR_VERSION
|| (majorNumber == MINIMUM_OPENGL_MAJOR_VERSION && minorNumber >= MINIMUM_OPENGL_MINOR_VERSION));
int minimumMajorNumber = GPU_CORE_MINIMUM / 100;
int minimumMinorNumber = (GPU_CORE_MINIMUM - minimumMajorNumber * 100) / 10;
valid = (majorNumber > minimumMajorNumber
|| (majorNumber == minimumMajorNumber && minorNumber >= minimumMinorNumber));
// Prompt user if below minimum
if (!valid) {
@ -49,7 +50,7 @@ bool OpenGLVersionChecker::isValidVersion() {
messageBox.setWindowTitle("OpenGL Version Too Low");
messageBox.setIcon(QMessageBox::Warning);
messageBox.setText(QString().sprintf("Your OpenGL version of %i.%i is lower than the minimum of %i.%i.",
majorNumber, minorNumber, MINIMUM_OPENGL_MAJOR_VERSION, MINIMUM_OPENGL_MINOR_VERSION));
majorNumber, minorNumber, minimumMajorNumber, minimumMinorNumber));
messageBox.setInformativeText("Press OK to exit; Ignore to continue.");
messageBox.setStandardButtons(QMessageBox::Ok | QMessageBox::Ignore);
messageBox.setDefaultButton(QMessageBox::Ok);