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wayland: Add support for EGL_WAYLAND_Y_INVERTED_WL

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Add support for inverted Y Wayland buffers. OpenGL textures are by
default inverted, so adding support for EGL_WAYLAND_Y_INVERTED_WL
effectively means adding support for non-inverted, which makes the
MetaShapedTexture apply a transformation when drawing only when querying
EGL_WAYLAND_Y_INVERTED_WL resulted in the response "EGL_FALSE".

https://bugzilla.gnome.org/show_bug.cgi?id=773629
This commit is contained in:
Jonas Ådahl
2016-10-20 15:44:27 +08:00
parent 23455985cd
commit 41c96921d6
5 changed files with 128 additions and 43 deletions
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2
src/wayland/meta-wayland-buffer.h
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@@ -39,6 +39,7 @@ struct _MetaWaylandBuffer
struct wl_listener destroy_listener;
CoglTexture *texture;
gboolean is_y_inverted;
};
#define META_TYPE_WAYLAND_BUFFER (meta_wayland_buffer_get_type ())
@@ -49,6 +50,7 @@ MetaWaylandBuffer * meta_wayland_buffer_from_resource (struct wl_resou
gboolean meta_wayland_buffer_attach (MetaWaylandBuffer *buffer,
GError **error);
CoglTexture * meta_wayland_buffer_get_texture (MetaWaylandBuffer *buffer);
gboolean meta_wayland_buffer_is_y_inverted (MetaWaylandBuffer *buffer);
void meta_wayland_buffer_process_damage (MetaWaylandBuffer *buffer,
cairo_region_t *region);