From 4ec94c97879aafef15f7663135745e4ba61e62cf Mon Sep 17 00:00:00 2001
From: Adrian Kummerlaender
Date: Mon, 17 May 2021 00:15:33 +0200
Subject: Extract first public LiterateLB version

---
 tangle/util/texture.h | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)
 create mode 100644 tangle/util/texture.h

(limited to 'tangle/util/texture.h')

diff --git a/tangle/util/texture.h b/tangle/util/texture.h
new file mode 100644
index 0000000..f2e0440
--- /dev/null
+++ b/tangle/util/texture.h
@@ -0,0 +1,25 @@
+#pragma once
+
+#include <cstring>
+#include <SFML/Graphics.hpp>
+#include <cuda_gl_interop.h>
+#include <LLBM/memory.h>
+
+cudaSurfaceObject_t bindTextureToCuda(sf::Texture& texture) {
+  GLuint gl_tex_handle = texture.getNativeHandle();
+  cudaGraphicsResource* cuda_tex_handle;
+  cudaArray* buffer;
+
+  cudaGraphicsGLRegisterImage(&cuda_tex_handle, gl_tex_handle, GL_TEXTURE_2D, cudaGraphicsRegisterFlagsNone);
+  cudaGraphicsMapResources(1, &cuda_tex_handle, 0);
+  cudaGraphicsSubResourceGetMappedArray(&buffer, cuda_tex_handle, 0, 0);
+
+  cudaResourceDesc resDesc;
+  resDesc.resType = cudaResourceTypeArray;
+
+  resDesc.res.array.array = buffer;
+  cudaSurfaceObject_t cudaSurfaceObject = 0;
+  cudaCreateSurfaceObject(&cudaSurfaceObject, &resDesc);
+
+  return cudaSurfaceObject;
+}
-- 
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