1 files changed, 130 insertions, 0 deletions
diff --git a/source/blender/gpu/GPU_viewport.h b/source/blender/gpu/GPU_viewport.h
new file mode 100644
index 00000000000..921cd0e7369
--- /dev/null
+++ b/source/blender/gpu/GPU_viewport.h
@@ -0,0 +1,130 @@
+/*
+ * ***** 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__
+
+#include <stdbool.h>
+
+#include "DNA_vec_types.h"
+
+#include "GPU_framebuffer.h"
+#include "GPU_texture.h"
+
+#define GPU_INFO_SIZE 512 /* IMA_MAX_RENDER_TEXT */
+
+typedef struct GPUViewport GPUViewport;
+
+/* Contains memory pools informations */
+typedef struct ViewportMemoryPool {
+	struct BLI_mempool *calls;
+	struct BLI_mempool *states;
+	struct BLI_mempool *shgroups;
+	struct BLI_mempool *uniforms;
+	struct BLI_mempool *passes;
+} ViewportMemoryPool;
+
+/* All FramebufferLists are just the same pointers with different names */
+typedef struct FramebufferList {
+	struct GPUFrameBuffer *framebuffers[0];
+} FramebufferList;
+
+typedef struct TextureList {
+	struct GPUTexture *textures[0];
+} TextureList;
+
+typedef struct PassList {
+	struct DRWPass *passes[0];
+} PassList;
+
+typedef struct StorageList {
+	void *storage[0]; /* custom structs from the engine */
+} StorageList;
+
+typedef struct ViewportEngineData {
+	void *engine_type;
+
+	FramebufferList *fbl;
+	TextureList *txl;
+	PassList *psl;
+	StorageList *stl;
+	char info[GPU_INFO_SIZE];
+
+	/* we may want to put this elsewhere */
+	struct DRWTextStore *text_draw_cache;
+
+	/* Profiling data */
+	double init_time;
+	double render_time;
+	double background_time;
+} ViewportEngineData;
+
+typedef struct ViewportEngineData_Info {
+	int fbl_len;
+	int txl_len;
+	int psl_len;
+	int stl_len;
+} ViewportEngineData_Info;
+
+GPUViewport *GPU_viewport_create(void);
+void GPU_viewport_bind(GPUViewport *viewport, const rcti *rect);
+void GPU_viewport_unbind(GPUViewport *viewport);
+void GPU_viewport_draw_to_screen(GPUViewport *viewport, const rcti *rect);
+void GPU_viewport_free(GPUViewport *viewport);
+
+GPUViewport *GPU_viewport_create_from_offscreen(struct GPUOffScreen *ofs);
+void GPU_viewport_clear_from_offscreen(GPUViewport *viewport);
+
+ViewportMemoryPool *GPU_viewport_mempool_get(GPUViewport *viewport);
+struct DRWInstanceDataList *GPU_viewport_instance_data_list_get(GPUViewport *viewport);
+
+void *GPU_viewport_engine_data_create(GPUViewport *viewport, void *engine_type);
+void *GPU_viewport_engine_data_get(GPUViewport *viewport, void *engine_type);
+void *GPU_viewport_framebuffer_list_get(GPUViewport *viewport);
+void *GPU_viewport_texture_list_get(GPUViewport *viewport);
+void  GPU_viewport_size_get(const GPUViewport *viewport, int size[2]);
+void  GPU_viewport_size_set(GPUViewport *viewport, const int size[2]);
+
+/* Profiling */
+double *GPU_viewport_cache_time_get(GPUViewport *viewport);
+
+void GPU_viewport_tag_update(GPUViewport *viewport);
+bool GPU_viewport_do_update(GPUViewport *viewport);
+
+GPUTexture *GPU_viewport_color_texture(GPUViewport *viewport);
+
+/* Texture pool */
+GPUTexture *GPU_viewport_texture_pool_query(GPUViewport *viewport, void *engine, int width, int height, int format);
+
+bool GPU_viewport_engines_data_validate(GPUViewport *viewport, unsigned int hash);
+void GPU_viewport_cache_release(GPUViewport *viewport);
+
+#endif // __GPU_VIEWPORT_H__