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0025758: Visualization, TKOpenGl - texture initialization fails on Intel HD 4600 in ray tracing test

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Unbind global texture sampler right after its usage.
This commit is contained in:
kgv 2015-01-29 15:16:09 +03:00 committed by bugmaster
parent 1e99558fbd
commit e3414ada99
2 changed files with 6 additions and 23 deletions
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23
src/OpenGl/OpenGl_Text.cxx
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@ -19,7 +19,6 @@
#include <OpenGl_ShaderManager.hxx>
#include <OpenGl_ShaderProgram.hxx>
#include <OpenGl_ShaderStates.hxx>
#include <OpenGl_Sampler.hxx>
#include <OpenGl_Text.hxx>
#include <OpenGl_Utils.hxx>
#include <OpenGl_Workspace.hxx>
@ -382,11 +381,6 @@ void OpenGl_Text::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
const OpenGl_AspectText* aTextAspect = theWorkspace->AspectText (Standard_True);
const Handle(OpenGl_Texture) aPrevTexture = theWorkspace->DisableTexture();
const Handle(OpenGl_Context)& aCtx = theWorkspace->GetGlContext();
const Handle(OpenGl_Sampler)& aSampler = aCtx->TextureSampler();
if (!aSampler.IsNull())
{
aSampler->Unbind (*aCtx);
}
if (aCtx->IsGlGreaterEqual (2, 0))
{
@ -424,10 +418,6 @@ void OpenGl_Text::Render (const Handle(OpenGl_Workspace)& theWorkspace) const
}
// restore aspects
if (!aSampler.IsNull())
{
aSampler->Bind (*aCtx);
}
if (!aPrevTexture.IsNull())
{
theWorkspace->EnableTexture (aPrevTexture);
@ -759,13 +749,6 @@ void OpenGl_Text::render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
theCtx->core15fwd->glActiveTexture (GL_TEXTURE0);
}
// unbind current OpenGL sampler
const Handle(OpenGl_Sampler)& aSampler = theCtx->TextureSampler();
if (!aSampler.IsNull() && aSampler->IsValid())
{
aSampler->Unbind (*theCtx);
}
// extra drawings
switch (theTextAspect.DisplayType())
{
@ -855,11 +838,5 @@ void OpenGl_Text::render (const Handle(OpenGl_PrinterContext)& thePrintCtx,
// model view matrix was modified
theCtx->WorldViewState.Pop();
theCtx->ApplyModelViewMatrix();
// revert custom OpenGL sampler
if (!aSampler.IsNull() && aSampler->IsValid())
{
aSampler->Bind (*theCtx);
}
#endif
}

6
src/OpenGl/OpenGl_Workspace.cxx
View File

@ -292,6 +292,12 @@ Handle(OpenGl_Texture) OpenGl_Workspace::DisableTexture()
return myTextureBound;
}
const Handle(OpenGl_Sampler)& aSampler = myGlContext->TextureSampler();
if (!aSampler.IsNull())
{
aSampler->Unbind (*myGlContext);
}
#if !defined(GL_ES_VERSION_2_0)
// reset texture matrix because some code may expect it is identity
GLint aMatrixMode = GL_TEXTURE;