Currently, WebGLProgram holds a hashtable of refptrs to all WebGLUniformLocation's created from it.
It's used for one thing: to ensure that multiple getUniformLocation() calls on same uniform return the same WebGLUniformLocation object.
However, in a discussion on the public_webgl mailing list this week, we agreed that this was not mandated by the spec and that on the contrary, to ensure consistent behavior across browsers, we're going to require that NOT to happen. So this becomes a conformance issue.
Removing this hashtable also simplifies code and ownership patterns.
This patch switches to the new mutual ownership pattern for WebGL objects, based on maintaining a second WebGL-specific refcount mirroring the OpenGL refcount which we can't access, using the helper classes that were introduced in patches 1 and 2.
These IIDs were used in the past to check, using do_QueryInterface, that the objects passed to WebGL functions were really of the expected type. Now that WebGL classes are marked 'builtinclass' in the IDL and that check has been removed (see bug 638328), none of that is needed anymore.
This patch should improve performance of the robustness timer by not resetting
it each time a draw operation happens. It still checks if there's any activity
and, if not, it will stop firing it. It includes a single extra timer firing
after activity dies to make sure we don't miss anything. Also includes a fix for
robustness being marked as existing when it really isn't.
Antialiasing can be blocked through the downloaded blocklist now, as well as
static analysis compiled into the OS-specific handlers for graphics features.
We are supposed to clear the WebGL framebuffer after it's been presented to the compositor and before the next draw operation, and were using the wrong way to know when we got composited. The right way is DidTransactionCallback.
This patch implements ARB_robustness on GLX and allows scripts to handle driver resets
through events. The changes in this patch are very sweeping; they hit almost
every NS_IMETHODIMP function within WebGLContextGL.cpp and WebGLContext.cpp.
More work must be done on this to support EGL_CONTEXT_LOST.
This fixes the names of WebGL KIND_HEAP reporters. Newly enforced rules about the naming of KIND_HEAP reporters were making about:memory fail to work in presence of WebGL reporters.
This patch initializes by zero the GL max values before we query them, just in case a buggy OpenGL implementation's glGetIntegerv function would fail to set them.
This patch also manually sets the initial values of mPixelStorePackAlignment and mPixelStoreUnpackAlignment as per the spec, rather than querying them from the GL.
WebGLContext::SetDimensions has an early success exit path when the dimensions are unchanged. However it wasn't checking that the gl pointer was non-null. Thus, after a failed WebGL context creation, such a SetDimensions call could incorrectly "succeed", only to crash when dereferencing the gl pointer.
