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physx/samples/sampleframework/renderer/include/RendererMesh.h

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+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+//  * Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+//  * Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//  * Neither the name of NVIDIA CORPORATION nor the names of its
+//    contributors may be used to endorse or promote products derived
+//    from this software without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ''AS IS'' AND ANY
+// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+// PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
+// OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+//
+// Copyright (c) 2008-2021 NVIDIA Corporation. All rights reserved.
+
+#ifndef RENDERER_MESH_H
+#define RENDERER_MESH_H
+
+#include <RendererConfig.h>
+#include <RendererIndexBuffer.h>
+
+namespace SampleRenderer
+{
+	class Renderer;
+	class RendererMeshDesc;
+	class RendererVertexBuffer;
+	class RendererIndexBuffer;
+	class RendererInstanceBuffer;
+	class RendererMaterial;
+
+	class RendererMesh
+	{
+		friend class Renderer;
+	public:
+		enum Primitive
+		{
+			PRIMITIVE_POINTS = 0,
+			PRIMITIVE_LINES,
+			PRIMITIVE_LINE_STRIP,
+			PRIMITIVE_TRIANGLES,
+			PRIMITIVE_TRIANGLE_STRIP,
+			PRIMITIVE_POINT_SPRITES,
+
+			NUM_PRIMITIVES
+		}_Primitive;
+
+	protected:
+		RendererMesh(const RendererMeshDesc &desc);
+		virtual ~RendererMesh(void);
+
+	public:
+		void release(void);
+
+		Primitive getPrimitives(void) const;
+
+		PxU32 getNumVertices(void) const;
+		PxU32 getNumIndices(void) const;
+		PxU32 getNumInstances(void) const;
+
+		void setVertexBufferRange(PxU32 firstVertex, PxU32 numVertices);
+		void setIndexBufferRange(PxU32 firstIndex, PxU32 numIndices);
+		void setInstanceBufferRange(PxU32 firstInstance, PxU32 numInstances);
+
+		PxU32                             getNumVertexBuffers(void) const;
+		const RendererVertexBuffer *const*getVertexBuffers(void) const;
+
+		const RendererIndexBuffer        *getIndexBuffer(void) const;
+
+		const RendererInstanceBuffer     *getInstanceBuffer(void) const;
+
+		virtual bool willRender() const { return true; }
+
+	protected:
+		void         bind(void) const;
+		void         render(RendererMaterial *material) const;
+		void         unbind(void) const;
+
+		virtual void renderIndices(PxU32 numVertices, PxU32 firstIndex, PxU32 numIndices, RendererIndexBuffer::Format indexFormat, RendererMaterial *material) const = 0;
+		virtual void renderVertices(PxU32 numVertices, RendererMaterial *material) const = 0;
+
+		virtual void renderIndicesInstanced(PxU32 numVertices, PxU32 firstIndex, PxU32 numIndices, RendererIndexBuffer::Format indexFormat,RendererMaterial *material) const = 0;
+		virtual void renderVerticesInstanced(PxU32 numVertices,RendererMaterial *material) const = 0;
+
+		virtual Renderer& renderer() = 0;
+
+	protected:
+		Primitive               m_primitives;
+
+		RendererVertexBuffer  **m_vertexBuffers;
+		PxU32                   m_numVertexBuffers;
+		PxU32                   m_firstVertex;
+		PxU32                   m_numVertices;
+
+		RendererIndexBuffer    *m_indexBuffer;
+		PxU32                   m_firstIndex;
+		PxU32                   m_numIndices;
+
+		RendererInstanceBuffer *m_instanceBuffer;
+		PxU32                   m_firstInstance;
+		PxU32                   m_numInstances;
+	};
+
+} // namespace SampleRenderer
+
+#endif