1 files changed, 66 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_immediate_private.hh b/source/blender/gpu/intern/gpu_immediate_private.hh
new file mode 100644
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+++ b/source/blender/gpu/intern/gpu_immediate_private.hh
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+/*
+ * 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) 2016 by Mike Erwin.
+ * All rights reserved.
+ */
+
+/** \file
+ * \ingroup gpu
+ *
+ * Mimics old style opengl immediate mode drawing.
+ */
+
+#pragma once
+
+#include "GPU_batch.h"
+#include "GPU_primitive.h"
+#include "GPU_shader.h"
+#include "GPU_vertex_format.h"
+
+namespace blender::gpu {
+
+class Immediate {
+ public:
+  /** Pointer to the mapped buffer data for the currect vertex. */
+  uchar *vertex_data = NULL;
+  /** Current vertex index. */
+  uint vertex_idx = 0;
+  /** Length of the buffer in vertices. */
+  uint vertex_len = 0;
+  /** Which attributes of current vertex have not been given values? */
+  uint16_t unassigned_attr_bits = 0;
+  /** Attributes that needs to be set. One bit per attribute. */
+  uint16_t enabled_attr_bits = 0;
+
+  /** Current draw call specification. */
+  GPUPrimType prim_type = GPU_PRIM_NONE;
+  GPUVertFormat vertex_format;
+  GPUShader *shader = NULL;
+  /** Enforce strict vertex count (disabled when using immBeginAtMost). */
+  bool strict_vertex_len = true;
+
+  /** Batch in construction when using immBeginBatch. */
+  GPUBatch *batch = NULL;
+
+ public:
+  Immediate(){};
+  virtual ~Immediate(){};
+
+  virtual uchar *begin(void) = 0;
+  virtual void end(void) = 0;
+};
+
+}  // namespace blender::gpu
+\ No newline at end of file