port from perforce

evoke-64k/trunk/ev10/FluidContext.h

@@ -0,0 +1,117 @@
+#pragma once
+
+#include <d3dx9.h>
+
+extern IDirect3DDevice9* g_d3d_device;
+
+struct InstanceData
+{
+	float pos[3];
+	float size;
+	float intensity;
+};
+
+struct FluidSettings
+{
+	float* Softness;
+	float* LightTransferAmmount;
+	float* SpecularFactor;
+	float* SpecularPower;
+	float* TextureScale;
+	float* TranslucencyAmmount;
+	float* SurfaceTension;
+	float* RefractAmmount;
+	float* DepthDifferenceBlur;
+	int* BlurSteps;
+	float* RenderTextureSizeScale;
+
+	IDirect3DBaseTexture9* DiffuseTexture;
+};
+
+struct Fluid
+{
+	FluidSettings Settings;
+
+	IDirect3DTexture9* renderTexturePingPong[4];
+	IDirect3DSurface9* renderSurfacePingPong[4];
+
+	D3DXVECTOR4 renderTargetPingPongDDX;
+};
+
+struct FluidParticleSystem
+{
+	bool IsVisible;
+	unsigned int InstanceCount;
+	IDirect3DVertexBuffer9* InstanceDataBuffer;
+};
+
+class FluidContext
+{
+public:
+	void BuildUp(int screenX, int screenY, D3DMULTISAMPLE_TYPE multiSampleType);
+
+	void RenderParticles(const FluidParticleSystem& particleInfo);
+	void RenderParticleDepth(const FluidParticleSystem& particleInfo);
+	
+	void Begin(const Fluid& fluid);
+	void End();
+	void Display(const Fluid& fluid);
+
+	FluidParticleSystem GenerateFluidParticleSystem(unsigned int instanceCount, InstanceData* initialData = NULL);
+	Fluid GenerateFluid(const FluidSettings& settings);
+
+	static void MeltObject(int objectIndex, int fluidIndex, int pointMapIndex, float time);
+
+private:
+	IDirect3DVertexDeclaration9* quadVertexDecl;
+	IDirect3DVertexDeclaration9* vertexDecl;
+	IDirect3DIndexBuffer9* quadIndexBuffer;
+	IDirect3DVertexBuffer9* quadVertexBuffer;
+
+	IDirect3DSurface9* renderSurface;
+
+	static const int renderTextureCount = 2; // pos, normal
+
+	int renderTargetWidth;
+	int renderTargetHeight;
+	D3DXVECTOR4 renderTargetDDX;
+
+	const Fluid* currentFluid;
+};
+
+static const float particleQuadVerts[20] =
+{
+	-1.0f,-1.0f, 0.0f, 
+	0.0f, 1.0f,
+
+	-1.0f, 1.0f, 0.0f, 
+	0.0f, 0.0f,
+
+	1.0f,  1.0f, 0.0f, 
+	1.0f, 0.0f,
+
+	1.0f, -1.0f, 0.0f, 
+	1.0f, 1.0f
+};
+
+static const float screenQuadVerts[30] =
+{
+	-1.0f,-1.0f, 1.0f, 
+	0.0f, 1.0f,
+
+	-1.0f, 1.0f, 1.0f, 
+	0.0f, 0.0f,
+
+	1.0f,  1.0f, 1.0f, 
+	1.0f, 0.0f,
+
+
+	1.0f, -1.0f, 1.0f, 
+	1.0f, 1.0f,
+
+	-1.0f,-1.0f, 1.0f, 
+	0.0f, 1.0f,
+
+	1.0f,  1.0f, 1.0f, 
+	1.0f, 0.0f
+};