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synchronized and secure [1/2]
GLBufferSizeTracker becomes GLBufferObjectTracker
and tracks the buffer's data store, GLBufferStorage, accurately, synchronized and secure.
Synchronization is required, since the GLBufferStorage can be
shared across many GLContext on multiple threads.
This requires all GLBufferStorage lifecycle affecting GL functions
to utilize synchronized GLBufferObjectTracker methods
while passing a native GL-func callback.
These GL functions are:
- glBufferData, glBufferStorage (GL 4.4), glNamedBufferDataEXT
Creating the GLBufferStorage object
- glMapBuffer, glMapBufferRange, and their *Named*EXT variants
- glUnmapBuffer, glUnmapNamedBufferEXT
'glDeleteBuffers' can simply notify the GLBufferObjectTracker
No more HashMap is required to associate the mapped buffer address
to the mapped ByteBuffer.
GLBufferObjectTracker simply utilizes a
buffer-name (int) -> GLBufferStorage
map.
+++
The security aspect shall be implemented by validating all arguments
whether they match the required GL constraints,
as well as validating tracked states like 'size'.
The following functions will throw an GLException accordingly:
- glBufferData, glNamedBufferDataEXT
* @throws GLException if size is less-than zero
* @throws GLException if a native GL-Error occurs
- glBufferStorage (GL 4.4)
* @throws GLException if size is less-or-eqaul zero
* @throws GLException if a native GL-Error occurs
- glMapBuffer, and it's *Named*EXT variant
* @throws GLException if buffer is not bound to target
* @throws GLException if buffer is not tracked
* @throws GLException if buffer is already mapped
* @throws GLException if buffer has invalid store size, i.e. less-than zero
- glMapBufferRange, and it's *Named*EXT variant
* @throws GLException if buffer is not bound to target
* @throws GLException if buffer is not tracked
* @throws GLException if buffer is already mapped
* @throws GLException if buffer has invalid store size, i.e. less-than zero
* @throws GLException if buffer mapping range does not fit, incl. offset
- glMapBufferRange, and it's *Named*EXT variant
Only clear mapped buffer reference of GLBufferStorage
if native unmap was successful.
Further more special error handling shall be applied to:
- glMapBuffer, and it's *Named*EXT variant,
glMapBuffer, and it's *Named*EXT variant
- A zero GLBufferStorage size will avoid a native call and
returns null
- A null native mapping result indicating an error will
not cause a GLException but returns null
This allows the user to handle this case.
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ES3 / GL4.3:
- Update all EGL, GLX, WGL and GL (desktop and mobile) khronos headers to latest version.
- GL3/gl3* -> GL/glcorearb*
- Explicitly preserve ES2_compatibility and ES3_compatibility in header,
most extension grouping was removed in new headers.
- Always load all GLHeader to ensure proper extension association across all profiles.
- Unified method signatures
- Added GL_EXT_map_buffer_range to core
- Using common 'glMapBufferImpl(..)' for all glMapBuffer(..) and glMapBufferRange(..) impl.
- Init necessary fields of GL instances via 'finalizeInit()' called by reflection, if exist.
This allows removing initialization checks, i.e. for all buffer validations.
- BuildStaticGLInfo: Can handle new GL header structure, i.e. one CPP extenstion block incl. define + funcs.
- GLJavaMethodBindingEmitter: Simply print the
- No GL duplication due to new intermediate interfaces, see below
- OO lineare inheritance (Added GL2ES3, GL3ES3 and GL4ES3 intemediates):
GLBase - GL - GL2ES2 - GLES2
GLBase - GL - GL2ES2 - GL2GL3 - [ GL2, GL3 ]
GLBase - GL - GL2ES2 - GL2ES3 - GL3ES3 - [ GL3 ]
GLBase - GL - GL2ES2 - GL2ES3 - GL3ES3 - GL4ES3 - [ GLES3, GL4, .. ]
- Expose 'usable' intermediate interfaces GL3ES3 and GL4ES3 in GLBase/GLProfile/GLContext
via is*() and get*().
- GLContext*:
- isGL3core() is true if [ GL4, GL3, GLES3 ] (added GLES3)
- Added ctxProfile argument to allow handling ES versions:
- getMaxMajor(..), getMaxMinor(..), isValidGLVersion(..) and decrementGLVersion(..)
- mapGLVersions(..) prepared for ES ARB/KHR validation
- EGLContext checks ES3 (via old ctx's GL_VERSION)
- ExtensionAvailabilityCache adds GL_ES_Version_X_Y for ES.
- Prelim tests w/ Mesa 9.1.3
GL Version 3.0 (ES profile, ES2 compat, ES3 compat, FBO, hardware) - OpenGL ES 3.0 Mesa 9.1.3 [GL 3.0.0, vendor 9.1.3 (Mesa 9.1.3)]
- TODO:
- Use KHR_create_context in EGLContext.createContextARBImpl(..)
- More tests (Mobile, ..)
+++
Misc:
- GLContext*:
- Complete glAllocateMemoryNV w/ glFreeMemoryNV.
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