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app/internal/gpu: query GL_EXTENSIONS correctly on macOS

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macOS supports the OpenGL core profiles where glGetString(GL_EXTENSIONS)
is not supported. Use glGetStringi(GL_EXTENSIONS, <index>) instead.

The wrong query didn't make any practical difference because Gio doesn't
need any extensions on OpenGL 3 and better.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-12-04 00:26:04 +01:00
parent d9212263aa
commit 86d69859b9
2 changed files with 36 additions and 2 deletions
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app/internal/gl/gl.go
+1
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@@ -37,6 +37,7 @@ const (
MAX_TEXTURE_SIZE = 0xd33
NEAREST = 0x2600
NO_ERROR = 0x0
NUM_EXTENSIONS = 0x821D
ONE = 0x1
ONE_MINUS_SRC_ALPHA = 0x303
QUERY_RESULT = 0x8866