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macos: use GdkMacosBuffer for storing damage region

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The GdkMacosBuffer object already has storage for tracking the damage
region as it is used in GdkMacosCairoContext to manually copy regions from
the front buffer to the back buffer. This makes the GdkMacosGLContext also
use that field so that we can easily drop old damage regions when the
buffer is lost. This happens during resizes, monitor changes, etc.
This commit is contained in:
Christian Hergert 2022-03-02 00:36:17 -08:00 committed by Christian Hergert
parent 42f9ea07e2
commit 50e2a8239b
2 changed files with 10 additions and 11 deletions
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2
gdk/macos/gdkmacosglcontext-private.h
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@ -38,8 +38,6 @@ struct _GdkMacosGLContext
{
GdkGLContext parent_instance;
cairo_region_t *damage;
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
CGLContextObj cgl_context;
G_GNUC_END_IGNORE_DEPRECATIONS

19
gdk/macos/gdkmacosglcontext.c
View File

@ -469,6 +469,7 @@ gdk_macos_gl_context_begin_frame (GdkDrawContext *context,
buffer = _gdk_macos_surface_get_buffer (GDK_MACOS_SURFACE (surface));
_gdk_macos_buffer_set_flipped (buffer, TRUE);
_gdk_macos_buffer_set_damage (buffer, region);
/* Create our render target and bind it */
gdk_gl_context_make_current (GDK_GL_CONTEXT (self));
@ -476,9 +477,6 @@ gdk_macos_gl_context_begin_frame (GdkDrawContext *context,
GDK_DRAW_CONTEXT_CLASS (gdk_macos_gl_context_parent_class)->begin_frame (context, prefers_high_depth, region);
g_clear_pointer (&self->damage, cairo_region_destroy);
self->damage = g_steal_pointer (&copy);
gdk_gl_context_make_current (GDK_GL_CONTEXT (self));
CHECK_GL (NULL, glBindFramebuffer (GL_FRAMEBUFFER, self->fbo));
}
@ -531,8 +529,6 @@ gdk_macos_gl_context_surface_resized (GdkDrawContext *draw_context)
g_assert (GDK_IS_MACOS_GL_CONTEXT (self));
g_clear_pointer (&self->damage, cairo_region_destroy);
if (self->cgl_context != NULL)
CGLUpdateContext (self->cgl_context);
}
@ -587,9 +583,16 @@ static cairo_region_t *
gdk_macos_gl_context_get_damage (GdkGLContext *context)
{
GdkMacosGLContext *self = (GdkMacosGLContext *)context;
const cairo_region_t *damage;
GdkMacosBuffer *buffer;
GdkSurface *surface;
if (self->damage)
return cairo_region_copy (self->damage);
g_assert (GDK_IS_MACOS_GL_CONTEXT (self));
if ((surface = gdk_draw_context_get_surface (GDK_DRAW_CONTEXT (context))) &&
(buffer = GDK_MACOS_SURFACE (surface)->front) &&
(damage = _gdk_macos_buffer_get_damage (buffer)))
return cairo_region_copy (damage);
return GDK_GL_CONTEXT_CLASS (gdk_macos_gl_context_parent_class)->get_damage (context);
}
@ -619,8 +622,6 @@ gdk_macos_gl_context_dispose (GObject *gobject)
CGLDestroyContext (cgl_context);
}
g_clear_pointer (&self->damage, cairo_region_destroy);
G_OBJECT_CLASS (gdk_macos_gl_context_parent_class)->dispose (gobject);
}