1 files changed, 71 insertions, 0 deletions
diff --git a/gsk/gl/gskglattachmentstateprivate.h b/gsk/gl/gskglattachmentstateprivate.h
new file mode 100644
index 0000000000..4052fa22c2
--- /dev/null
+++ b/gsk/gl/gskglattachmentstateprivate.h
@@ -0,0 +1,71 @@
+/* gskglattachmentstateprivate.h
+ *
+ * Copyright 2020 Christian Hergert <chergert@redhat.com>
+ *
+ * This file is free software; you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation; either version 2.1 of the License, or (at your option)
+ * any later version.
+ *
+ * This file is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
+ * License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
+ *
+ * SPDX-License-Identifier: LGPL-2.1-or-later
+ */
+
+#ifndef __GSK_GL_ATTACHMENT_STATE_PRIVATE_H__
+#define __GSK_GL_ATTACHMENT_STATE_PRIVATE_H__
+
+#include "gskgltypesprivate.h"
+
+G_BEGIN_DECLS
+
+typedef struct _GskGLAttachmentState GskGLAttachmentState;
+typedef struct _GskGLBindFramebuffer GskGLBindFramebuffer;
+typedef struct _GskGLBindTexture     GskGLBindTexture;
+
+struct _GskGLBindTexture
+{
+  guint changed : 1;
+  guint initial : 1;
+  GLenum target : 30;
+  GLenum texture;
+  guint id;
+};
+
+G_STATIC_ASSERT (sizeof (GskGLBindTexture) == 12);
+
+struct _GskGLBindFramebuffer
+{
+  guint changed : 1;
+  guint id : 31;
+};
+
+G_STATIC_ASSERT (sizeof (GskGLBindFramebuffer) == 4);
+
+struct _GskGLAttachmentState
+{
+  GskGLBindFramebuffer fbo;
+  /* Increase if shaders add more textures */
+  GskGLBindTexture textures[4];
+  guint n_changed;
+};
+
+GskGLAttachmentState *gsk_gl_attachment_state_new              (void);
+GskGLAttachmentState *gsk_gl_attachment_state_ref              (GskGLAttachmentState *self);
+void                  gsk_gl_attachment_state_unref            (GskGLAttachmentState *self);
+void                  gsk_gl_attachment_state_bind_texture     (GskGLAttachmentState *self,
+                                                                GLenum                 target,
+                                                                GLenum                 texture,
+                                                                guint                  id);
+void                  gsk_gl_attachment_state_bind_framebuffer (GskGLAttachmentState *self,
+                                                                guint                  id);
+
+G_END_DECLS
+
+#endif /* __GSK_GL_ATTACHMENT_STATE_PRIVATE_H__ */