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0025422: Visualization, TKOpenGl - support re-assignment of new window to existing View

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Do not throw "Window already defined" exception in Visual3d_View/V3d_View.
Handle window change within OpenGl_GraphicDriver::View().

OpenGl_GraphicDriver - introduce dedicated methods to initialize/release shared OpenGL context.
::InitEglContext() to using existing EGL context.

OpenGl_Context - always enable NPOT textures on OpenGL ES 2.0

OpenGl_Workspace - do not call glDisable/glEnable(GL_TEXTURE_2D) on GL ES

OpenGl_GraphicDriver::ReleaseContext() - release EGL context on destruction

OpenGl_GraphicDriver::InitEglContext() - escape method implementation with HAVE_EGL macros

OpenGl_ShaderManager - clear shader programs on shared context invalidation
This commit is contained in:
kgv
2014-10-30 13:51:14 +03:00
committed by bugmaster
parent 524a5f7aa7
commit 05e2200bbf
11 changed files with 266 additions and 117 deletions
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25
src/OpenGl/OpenGl_Context.cxx
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@@ -199,6 +199,23 @@ OpenGl_Context::~OpenGl_Context()
#endif
}
// =======================================================================
// function : forcedRelease
// purpose :
// =======================================================================
void OpenGl_Context::forcedRelease()
{
ReleaseDelayed();
for (NCollection_DataMap<TCollection_AsciiString, Handle(OpenGl_Resource)>::Iterator anIter (*mySharedResources);
anIter.More(); anIter.Next())
{
anIter.Value()->Release (this);
}
mySharedResources->Clear();
myShaderManager->clear();
myShaderManager->SetContext (NULL);
}
// =======================================================================
// function : MaxDegreeOfAnisotropy
// purpose :
@@ -878,8 +895,12 @@ void OpenGl_Context::init()
hasTexRGBA8 = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_OES_rgb8_rgba8");
arbNPTW = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_OES_texture_npot");
// NPOT textures has limited support within OpenGL ES 2.0
// which are relaxed by OpenGL ES 3.0 or some extensions
//arbNPTW = IsGlGreaterEqual (3, 0)
// || CheckExtension ("GL_OES_texture_npot")
// || CheckExtension ("GL_NV_texture_npot_2D_mipmap");
arbNPTW = Standard_True;
arbTexRG = IsGlGreaterEqual (3, 0)
|| CheckExtension ("GL_EXT_texture_rg");
extBgra = CheckExtension ("GL_EXT_texture_format_BGRA8888");