1 files changed, 118 insertions, 0 deletions
diff --git a/gst-libs/gst/gl/gstglbuffer.h b/gst-libs/gst/gl/gstglbuffer.h
new file mode 100644
index 000000000..a88a73b88
--- /dev/null
+++ b/gst-libs/gst/gl/gstglbuffer.h
@@ -0,0 +1,118 @@
+/*
+ * GStreamer
+ * Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library 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
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _GST_GL_BUFFER_H_
+#define _GST_GL_BUFFER_H_
+
+#include <gst/gst.h>
+#include <gst/gstallocator.h>
+#include <gst/gstmemory.h>
+
+#include <gst/gl/gstglbasememory.h>
+
+G_BEGIN_DECLS
+
+#define GST_TYPE_GL_BUFFER_ALLOCATOR (gst_gl_buffer_allocator_get_type())
+GType gst_gl_buffer_allocator_get_type(void);
+
+#define GST_IS_GL_BUFFER_ALLOCATOR(obj)              (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_ALLOCATOR))
+#define GST_IS_GL_BUFFER_ALLOCATOR_CLASS(klass)      (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR))
+#define GST_GL_BUFFER_ALLOCATOR_GET_CLASS(obj)       (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
+#define GST_GL_BUFFER_ALLOCATOR(obj)                 (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocator))
+#define GST_GL_BUFFER_ALLOCATOR_CLASS(klass)         (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
+#define GST_GL_BUFFER_ALLOCATOR_CAST(obj)            ((GstGLBufferAllocator *)(obj))
+
+
+typedef enum
+{
+  GST_GL_BUFFER_FLAG_NEED_DOWNLOAD   = (GST_MEMORY_FLAG_LAST << 0),
+  GST_GL_BUFFER_FLAG_NEED_UPLOAD     = (GST_MEMORY_FLAG_LAST << 1)
+} GstGLBufferFlags;
+
+/**
+ * GST_MAP_GL:
+ *
+ * Flag indicating that we should map the GL object instead of to system memory.
+ *
+ * Combining #GST_MAP_GL with #GST_MAP_WRITE has the same semantics as though
+ * you are writing to OpenGL. Conversely, combining #GST_MAP_GL with
+ * #GST_MAP_READ has the same semantics as though you are reading from OpenGL.
+ */
+#define GST_MAP_GL (GST_MAP_FLAG_LAST << 1)
+
+/**
+ * GstGLBuffer:
+ * @mem: the parent object
+ * @context: the #GstGLContext to use for GL operations
+ * @id: the buffer id for this memory
+ * @target: the GL target of this texture for binding purposes
+ *
+ * Represents information about a GL buffer
+ */
+struct _GstGLBuffer
+{
+  GstGLBaseMemory       mem;
+
+  guint                 id;
+  guint                 target;         /* XXX: put this in the allocator? */
+  guint                 usage_hints;     /* XXX: put this in the allocator? */
+};
+
+/**
+ * GstGLBufferAllocator
+ *
+ * Opaque #GstGLAllocator struct
+ */
+struct _GstGLBufferAllocator
+{
+  GstGLBaseMemoryAllocator parent;
+};
+
+/**
+ * GstGLBufferAllocatorClass:
+ *
+ * The #GstGLBufferAllocatorClass only contains private data
+ */
+struct _GstGLBufferAllocatorClass
+{
+  GstGLBaseMemoryAllocatorClass parent_class;
+};
+
+#define GST_CAPS_FEATURE_MEMORY_GL_BUFFER "memory:GLBuffer"
+
+/**
+ * GST_GL_BUFFER_ALLOCATOR_NAME:
+ *
+ * The name of the GL buffer allocator
+ */
+#define GST_GL_BUFFER_ALLOCATOR_NAME   "GLBuffer"
+
+void          gst_gl_buffer_init_once (void);
+gboolean      gst_is_gl_buffer        (GstMemory * mem);
+
+GstGLBuffer * gst_gl_buffer_alloc     (GstGLContext * context,
+                                       guint gl_target,
+                                       guint gl_usage,
+                                       GstAllocationParams * params,
+                                       gsize maxsize);
+
+G_END_DECLS
+
+#endif /* _GST_GL_BUFFER_H_ */