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0025897: Visualization, TKOpenGl - disable FBO blitting after first failure on broken OpenGL context

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OpenGl_Context::init() - detect OpenGL 2.0+ broken context by wrong GLSL version string.
Emit error messages when OpenGL context reports version higher than actually exported.

Improve logic of methods drawing Immediate presentations and swapping the Buffers.
OpenGl_Workspace::myTransientDrawToFront - repair functionality of this flag
to always render Immediate Objects into Back Buffer.
OpenGl_Workspace::myHasFboBlit - add new flag to disable FBO blitting after first failure.
This commit is contained in:
kgv
2015-03-05 18:05:58 +03:00
committed by bugmaster
parent 77e39787b4
commit ee51a9fe3a
6 changed files with 221 additions and 126 deletions
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58
src/OpenGl/OpenGl_Context.cxx
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@@ -894,6 +894,30 @@ void OpenGl_Context::PushMessage (const unsigned int theSource,
Messenger()->Send (aMsg, aGrav);
}
// =======================================================================
// function : checkWrongVersion
// purpose :
// ======================================================================
void OpenGl_Context::checkWrongVersion (const Standard_Integer theGlVerMajor,
const Standard_Integer theGlVerMinor)
{
if (!IsGlGreaterEqual (theGlVerMajor, theGlVerMinor))
{
return;
}
TCollection_ExtendedString aMsg = TCollection_ExtendedString()
+ "Error! OpenGL context reports version "
+ myGlVerMajor + "." + myGlVerMinor
+ " but does not export required functions for "
+ theGlVerMajor + "." + theGlVerMinor;
PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB,
GL_DEBUG_TYPE_ERROR_ARB,
0,
GL_DEBUG_SEVERITY_HIGH_ARB,
aMsg);
}
// =======================================================================
// function : init
// purpose :
@@ -1898,24 +1922,28 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has12)
{
checkWrongVersion (1, 2);
myGlVerMajor = 1;
myGlVerMinor = 1;
return;
}
else if (!has13)
{
checkWrongVersion (1, 3);
myGlVerMajor = 1;
myGlVerMinor = 2;
return;
}
else if (!has14)
{
checkWrongVersion (1, 4);
myGlVerMajor = 1;
myGlVerMinor = 3;
return;
}
else if (!has15)
{
checkWrongVersion (1, 5);
myGlVerMajor = 1;
myGlVerMinor = 4;
return;
@@ -1928,6 +1956,26 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has20)
{
checkWrongVersion (2, 0);
myGlVerMajor = 1;
myGlVerMinor = 5;
return;
}
const char* aGlslVer = (const char* )::glGetString (GL_SHADING_LANGUAGE_VERSION);
if (aGlslVer == NULL
|| *aGlslVer == '\0')
{
// broken context has been detected
TCollection_ExtendedString aMsg = TCollection_ExtendedString()
+ "Error! OpenGL context reports version "
+ myGlVerMajor + "." + myGlVerMinor
+ " but reports wrong GLSL version";
PushMessage (GL_DEBUG_SOURCE_APPLICATION_ARB,
GL_DEBUG_TYPE_ERROR_ARB,
0,
GL_DEBUG_SEVERITY_HIGH_ARB,
aMsg);
myGlVerMajor = 1;
myGlVerMinor = 5;
return;
@@ -1941,6 +1989,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has21)
{
checkWrongVersion (2, 1);
myGlVerMajor = 2;
myGlVerMinor = 0;
return;
@@ -1948,6 +1997,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has30)
{
checkWrongVersion (3, 0);
myGlVerMajor = 2;
myGlVerMinor = 1;
return;
@@ -1955,6 +2005,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has31)
{
checkWrongVersion (3, 1);
myGlVerMajor = 3;
myGlVerMinor = 0;
return;
@@ -1964,6 +2015,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has32)
{
checkWrongVersion (3, 2);
myGlVerMajor = 3;
myGlVerMinor = 1;
return;
@@ -1980,6 +2032,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has33)
{
checkWrongVersion (3, 3);
myGlVerMajor = 3;
myGlVerMinor = 2;
return;
@@ -1996,6 +2049,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has40)
{
checkWrongVersion (4, 0);
myGlVerMajor = 3;
myGlVerMinor = 3;
return;
@@ -2004,6 +2058,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has41)
{
checkWrongVersion (4, 1);
myGlVerMajor = 4;
myGlVerMinor = 0;
return;
@@ -2016,6 +2071,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if(!has42)
{
checkWrongVersion (4, 2);
myGlVerMajor = 4;
myGlVerMinor = 1;
return;
@@ -2028,6 +2084,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has43)
{
checkWrongVersion (4, 3);
myGlVerMajor = 4;
myGlVerMinor = 2;
return;
@@ -2040,6 +2097,7 @@ void OpenGl_Context::init (const Standard_Boolean theIsCoreProfile)
if (!has44)
{
checkWrongVersion (4, 4);
myGlVerMajor = 4;
myGlVerMinor = 3;
return;