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0024228: TKOpenGL - destroy GL context at view close

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- OpenGl_Display - release GL resources correctly on closing views
- OpenGl_AspectFace, OpenGl_AspectText, OpenGl_AspectLine, OpenGl_AspectMarker - initialize OpenGl resources on demand, when context is available.
- Graphic3d_TextureRoot - use const modifier for GetId method to avoid asynchronous resource state at OpenGl.
- Do not call OpenGL functions if no active GL context has been left
- Reset thread's context before deletion for Mesa WNT
This commit is contained in:
apl
2013-10-24 12:53:42 +04:00
committed by abv
parent ab2db9a59e
commit fd4a696350
42 changed files with 956 additions and 624 deletions
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104
src/OpenGl/OpenGl_FrameBuffer.hxx
View File

@@ -16,17 +16,19 @@
// purpose or non-infringement. Please see the License for the specific terms
// and conditions governing the rights and limitations under the License.
#ifndef OPENGL_FRAME_BUFFER_H
#define OPENGL_FRAME_BUFFER_H
#include <OpenGl_Context.hxx>
#include <OpenGl_ExtFBO.hxx>
#include <OpenGl_Resource.hxx>
#include <Standard_Boolean.hxx>
#include <InterfaceGraphic.hxx>
class OpenGl_FrameBuffer
//! Class implements FrameBuffer Object (FBO) resource
//! intended for off-screen rendering.
class OpenGl_FrameBuffer : public OpenGl_Resource
{
public:
@@ -38,12 +40,14 @@ public:
public:
OpenGl_FrameBuffer (GLint theTextureFormat = GL_RGBA8);
//! Empty constructor
Standard_EXPORT OpenGl_FrameBuffer (GLint theTextureFormat = GL_RGBA8);
virtual ~OpenGl_FrameBuffer()
{
Release (Handle(OpenGl_Context)());
}
//! Destructor
Standard_EXPORT virtual ~OpenGl_FrameBuffer();
//! Destroy object - will release GPU memory if any.
Standard_EXPORT virtual void Release (const OpenGl_Context* theGlCtx);
//! Texture width.
GLsizei GetSizeX() const
@@ -72,7 +76,7 @@ public:
//! Returns true if current object was initialized
Standard_Boolean IsValid() const
{
return IsValidFrameBuffer() && IsValidTexture() && IsValidDepthBuffer() && IsValidStencilBuffer();
return isValidFrameBuffer() && isValidTexture() && isValidDepthBuffer() && isValidStencilBuffer();
}
//! Notice! Obsolete hardware (GeForce FX etc)
@@ -83,94 +87,76 @@ public:
//! current implementation will try to generate compatible FBO;
//! 2) FBO rendering will be done in software mode (ForceWare 'hack');
//! 3) FBO rendering will be incorrect (some obsolete Catalyst drivers).
Standard_Boolean Init (const Handle(OpenGl_Context)& theGlContext,
GLsizei theViewportSizeX,
GLsizei theViewportSizeY,
GLboolean toForcePowerOfTwo = GL_FALSE);
//! Release GL objects
void Release (const Handle(OpenGl_Context)& theGlContext);
Standard_EXPORT Standard_Boolean Init (const Handle(OpenGl_Context)& theGlCtx,
const GLsizei theViewportSizeX,
const GLsizei theViewportSizeY,
const GLboolean toForcePowerOfTwo = GL_FALSE);
//! Setup viewport to render into FBO
void SetupViewport()
{
glViewport (0, 0, myVPSizeX, myVPSizeY);
}
Standard_EXPORT void SetupViewport (const Handle(OpenGl_Context)& theGlCtx);
//! Override viewport settings
void ChangeViewport (const GLsizei theVPSizeX,
const GLsizei theVPSizeY)
{
myVPSizeX = theVPSizeX;
myVPSizeY = theVPSizeY;
}
Standard_EXPORT void ChangeViewport (const GLsizei theVPSizeX,
const GLsizei theVPSizeY);
//! Bind frame buffer (to render into the texture).
void BindBuffer (const Handle(OpenGl_Context)& theGlContext)
{
theGlContext->extFBO->glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, myGlFBufferId);
}
Standard_EXPORT void BindBuffer (const Handle(OpenGl_Context)& theGlCtx);
//! Unbind frame buffer.
void UnbindBuffer (const Handle(OpenGl_Context)& theGlContext)
{
theGlContext->extFBO->glBindFramebufferEXT (GL_FRAMEBUFFER_EXT, NO_FRAMEBUFFER);
}
Standard_EXPORT void UnbindBuffer (const Handle(OpenGl_Context)& theGlCtx);
//! Bind the texture.
void BindTexture ()
{
glEnable (GL_TEXTURE_2D); // needed only for fixed pipeline rendering
glBindTexture (GL_TEXTURE_2D, myGlTextureId);
}
Standard_EXPORT void BindTexture (const Handle(OpenGl_Context)& theGlCtx);
//! Unbind the texture.
void UnbindTexture()
{
glBindTexture (GL_TEXTURE_2D, NO_TEXTURE);
glDisable (GL_TEXTURE_2D); // needed only for fixed pipeline rendering
}
Standard_EXPORT void UnbindTexture (const Handle(OpenGl_Context)& theGlCtx);
private:
//! Check texture could be created
Standard_Boolean IsProxySuccess() const;
Standard_Boolean isProxySuccess() const;
//! Generate texture with undefined data
Standard_Boolean InitTrashTexture (const Handle(OpenGl_Context)& theGlContext);
Standard_Boolean initTrashTexture (const Handle(OpenGl_Context)& theGlContext);
Standard_Boolean IsValidTexture() const
Standard_Boolean isValidTexture() const
{
return myGlTextureId != NO_TEXTURE;
}
Standard_Boolean IsValidFrameBuffer() const
Standard_Boolean isValidFrameBuffer() const
{
return myGlFBufferId != NO_FRAMEBUFFER;
}
Standard_Boolean IsValidDepthBuffer() const
Standard_Boolean isValidDepthBuffer() const
{
return myGlDepthRBId != NO_RENDERBUFFER;
}
Standard_Boolean IsValidStencilBuffer() const
Standard_Boolean isValidStencilBuffer() const
{
return myGlStencilRBId != NO_RENDERBUFFER;
}
private:
GLsizei mySizeX; // texture width
GLsizei mySizeY; // texture height
GLsizei myVPSizeX; // viewport width (should be <= texture width)
GLsizei myVPSizeY; // viewport height (should be <= texture height)
GLint myTextFormat; // GL_RGB, GL_RGBA,...
GLuint myGlTextureId; // GL texture ID
GLuint myGlFBufferId; // FBO object ID
GLuint myGlDepthRBId; // RenderBuffer object for depth ID
GLuint myGlStencilRBId; // RenderBuffer object for stencil ID
GLsizei mySizeX; //!< texture width
GLsizei mySizeY; //!< texture height
GLsizei myVPSizeX; //!< viewport width (should be <= texture width)
GLsizei myVPSizeY; //!< viewport height (should be <= texture height)
GLint myTextFormat; //!< GL_RGB, GL_RGBA,...
GLuint myGlTextureId; //!< GL texture ID
GLuint myGlFBufferId; //!< FBO object ID
GLuint myGlDepthRBId; //!< RenderBuffer object for depth ID
GLuint myGlStencilRBId; //!< RenderBuffer object for stencil ID
public:
DEFINE_STANDARD_RTTI(OpenGl_FrameBuffer) // Type definition
};
#endif //OPENGL_FRAME_BUFFER_H
DEFINE_STANDARD_HANDLE(OpenGl_FrameBuffer, OpenGl_Resource)
#endif // OPENGL_FRAME_BUFFER_H