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Backends: OpenGL3: Add compatibility of GL_VERSION for GL 2.x (#3530)

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GL_MAJOR_VERSION and GL_MINOR_VERSION are available on GL 3.0 and above.
So we have to parse GL_VERSION under GL 2.x
This commit is contained in:
xndcn
2020-10-15 11:39:08 +08:00
committed by ocornut
parent 31a144b60c
commit 127f132447
2 changed files with 11 additions and 1 deletions
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docs/CHANGELOG.txt
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@ -55,6 +55,8 @@ Breaking Changes:
Other Changes:
- Tab Bar: Made it possible to append to an existing tab bar by calling BeginTabBar()/EndTabBar() again.
- Backends: OpenGL: use glGetString(GL_VERSION) query instead of glGetIntegerv(GL_MAJOR_VERSION, ...)
when the later returns zero (e.g. Desktop GL 2.x). (#3530) [@xndcn]
- Docs: Split examples/README.txt into docs/BACKENDS.md and docs/EXAMPLES.md improved them.
- Docs: Consistently renamed all occurences of "binding" and "back-end" to "backend" in comments and docs.