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glcontext: Store the updated area in the right place

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We need to store the region *before* adding our own damage area, because
we want to only store the changes of this frame, not the whole history.

So do it in the same place Vulkan does it.

Fixes #1900
This commit is contained in:
Benjamin Otte 2019-05-18 16:54:27 +02:00
parent 2bad613cb0
commit b76eb96c58
1 changed files with 6 additions and 5 deletions
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11
gdk/gdkglcontext.c
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@ -310,6 +310,12 @@ gdk_gl_context_real_begin_frame (GdkDrawContext *draw_context,
}
damage = GDK_GL_CONTEXT_GET_CLASS (context)->get_damage (context);
if (context->old_updated_area[1])
cairo_region_destroy (context->old_updated_area[1]);
context->old_updated_area[1] = context->old_updated_area[0];
context->old_updated_area[0] = cairo_region_copy (region);
cairo_region_union (region, damage);
cairo_region_destroy (damage);
@ -341,11 +347,6 @@ gdk_gl_context_real_end_frame (GdkDrawContext *draw_context,
GDK_DRAW_CONTEXT_GET_CLASS (GDK_DRAW_CONTEXT (shared))->end_frame (GDK_DRAW_CONTEXT (shared), painted);
return;
}
if (context->old_updated_area[1])
cairo_region_destroy (context->old_updated_area[1]);
context->old_updated_area[1] = context->old_updated_area[0];
context->old_updated_area[0] = cairo_region_reference (painted);
}
static void