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app/headless: prepare OpenGL context on macOS

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The macOS backend uses a desktop OpenGL context, not a OpenGL ES
context. The main difference is that sRGB have to be enabled and
a vertex buffer must be bound.

Do that and fix Window.Screenshot for scenes more complex than a
glClear.

Signed-off-by: Elias Naur <mail@eliasnaur.com>
This commit is contained in:
Elias Naur
2019-12-03 23:53:56 +01:00
parent fddb0af6f6
commit d9212263aa
5 changed files with 23 additions and 5 deletions
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app/headless/headless_darwin.h
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@@ -4,3 +4,4 @@ __attribute__ ((visibility ("hidden"))) CFTypeRef gio_headless_newContext(void);
__attribute__ ((visibility ("hidden"))) void gio_headless_releaseContext(CFTypeRef ctxRef);
__attribute__ ((visibility ("hidden"))) void gio_headless_clearCurrentContext(CFTypeRef ctxRef);
__attribute__ ((visibility ("hidden"))) void gio_headless_makeCurrentContext(CFTypeRef ctxRef);
__attribute__ ((visibility ("hidden"))) void gio_headless_prepareContext(CFTypeRef ctxRef);