viewport: barebones to handle viewport compositing in gpu_viewport.c

3 files changed, 95 insertions, 0 deletions

diff --git a/source/blender/gpu/CMakeLists.txt b/source/blender/gpu/CMakeLists.txt
index 2a5df19e7e8..d33e9456e44 100644
--- a/source/blender/gpu/CMakeLists.txt
+++ b/source/blender/gpu/CMakeLists.txt
@@ -64,6 +64,7 @@ set(SRC
 	intern/gpu_select.c
 	intern/gpu_shader.c
 	intern/gpu_texture.c
+	intern/gpu_viewport.c
 
 	gawain/attrib_binding.c
 	gawain/attrib_binding.h
@@ -119,6 +120,7 @@ set(SRC
 	GPU_select.h
 	GPU_shader.h
 	GPU_texture.h
+	GPU_viewport.h
 
 	intern/gpu_codegen.h
 	intern/gpu_private.h
diff --git a/source/blender/gpu/GPU_viewport.h b/source/blender/gpu/GPU_viewport.h
new file mode 100644
index 00000000000..82b537e1c3d
--- /dev/null
+++ b/source/blender/gpu/GPU_viewport.h
@@ -0,0 +1,41 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2005 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s):
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file GPU_viewport.h
+ *  \ingroup gpu
+ */
+
+#ifndef __GPU_VIEWPORT_H__
+#define __GPU_VIEWPORT_H__
+
+typedef struct GPUViewport GPUViewport;
+
+GPUViewport *GPU_viewport_create(void);
+
+void GPU_viewport_free(GPUViewport *viewport);
+
+#endif // __GPU_VIEWPORT_H__
diff --git a/source/blender/gpu/intern/gpu_viewport.c b/source/blender/gpu/intern/gpu_viewport.c
new file mode 100644
index 00000000000..bae2fdc552d
--- /dev/null
+++ b/source/blender/gpu/intern/gpu_viewport.c
@@ -0,0 +1,52 @@
+/*
+ * ***** BEGIN GPL LICENSE BLOCK *****
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ * The Original Code is Copyright (C) 2006 Blender Foundation.
+ * All rights reserved.
+ *
+ * The Original Code is: all of this file.
+ *
+ * Contributor(s):
+ *
+ * ***** END GPL LICENSE BLOCK *****
+ */
+
+/** \file blender/gpu/intern/gpu_viewport.c
+ *  \ingroup gpu
+ *
+ * System that manages viewport drawing.
+ */
+
+#include "GPU_viewport.h"
+
+#include "MEM_guardedalloc.h"
+
+struct GPUViewport {
+	float pad[4];
+};
+
+GPUViewport *GPU_viewport_create(void)
+{
+	GPUViewport *viewport = MEM_callocN(sizeof(GPUViewport), "GPUViewport");
+	return viewport;
+}
+
+void GPU_viewport_free(GPUViewport *viewport)
+{
+	MEM_freeN(viewport);
+}
+