glamor fixes for 1.17 branch

[Michel Dänzer]

Hi Eric, Adam,


please consider backporting the following glamor fixes to the 1.17 branch:

732e3b9c08532f40656010eac9d128601cc88c3f ("Instead of one
glTexSubImage2D call for each glyph.") (May want to add back the
original shortlog, "glamor: Use a single glTexImage2D call for core font
atlas texture data v2", which was dropped when the patch was applied)

1a18513a4eb3fa22459dd9f7d8f0e275aff679ec ("glamor: Use
glamor_prepare_access_box() for PutImage/GetImage fallback")

db5337afb248edf81087cf8d74006fc496d70589 ("glamor: make current in
prepare paths")

0a458a908ec071a4da5d22c760581e0c5ec885ce ("glamor: Make our EGL context
current before calling into GL in glamor_init")


-- 
Earthling Michel Dänzer               |               http://www.amd.com
Libre software enthusiast             |             Mesa and X developer