949644 - Fix WGL function lookup

Status: RESOLVED FIXED

(Core :: Graphics, defect)

Description

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

Attachment: set mLibrary before Init

Our WGL code is a bit weird, in that we end up always calling wglGetProcAddress for every function, including functions directly exposed by opengl32.dll such as "glBindTexture".  This should work.

When using AMD's CodeXL GL debugger though, they seem to have an issue in their wglGetProcAddress wrapper where it doesn't return the right thing for core functions like glBindTexture, leading the interception code never getting to see those functions.  This small patch makes us do the lookup in the library first (before this, mLibrary was always null for WGL contexts, we only had a lookup function).

Comment 1

[Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond)]

 https://hg.mozilla.org/integration/mozilla-inbound/rev/f01cde340097

Comment 2

[Ryan VanderMeulen [:RyanVM]]

https://hg.mozilla.org/mozilla-central/rev/f01cde340097

Comment 3

[Ryan VanderMeulen [:RyanVM]]

Please don't resolve bugs when landing on inbound.