1 files changed, 207 insertions, 0 deletions
diff --git a/demo/shadersDemoContext.cpp b/demo/shadersDemoContext.cpp
new file mode 100644
index 0000000..8b56922
--- /dev/null
+++ b/demo/shadersDemoContext.cpp
@@ -0,0 +1,207 @@
+// to fix min max windows macros
+#define NOMINMAX
+
+// SDL
+//#include "../external/SDL2-2.0.4/include/SDL_syswm.h"
+#include "../external/SDL2-2.0.4/include/SDL.h"
+
+// This
+#include "shadersDemoContext.h"
+
+// Stubs for unsupported renderers
+//#if PLATFORM_LINUX
+#ifdef __linux__
+DemoContext* CreateDemoContextD3D11() { assert(0); return 0; };
+DemoContext* CreateDemoContextD3D12() { assert(0); return 0; };
+#else
+#if FLEX_DX
+DemoContext* CreateDemoContextOGL() { assert(0); return 0; };
+#endif
+#endif
+
+extern DemoContext* CreateDemoContextOGL();
+extern DemoContext* CreateDemoContextD3D11();
+extern DemoContext* CreateDemoContextD3D12();
+
+DemoContext* s_context = NULL;
+
+void CreateDemoContext(int type)
+{
+	DemoContext* context = 0;
+#ifndef ANDROID
+	switch (type)
+	{
+	case 0: context = CreateDemoContextOGL(); break;
+	case 1: context = CreateDemoContextD3D11(); break;
+	case 2: context = CreateDemoContextD3D12(); break;
+	default: assert(0);
+	}
+#endif
+	s_context = context;
+}
+
+DemoContext* GetDemoContext()
+{
+	return s_context;
+}
+
+void ReshapeRender(SDL_Window* window)
+{
+	int width, height;
+	SDL_GetWindowSize(window, &width, &height);
+	s_context->onSizeChanged(width, height, false);
+}
+
+void DestroyRender()
+{
+	if (s_context)
+	{
+		delete s_context;
+		s_context = nullptr;
+	}
+}
+
+void StartFrame(Vec4 colorIn) { s_context->startFrame(colorIn); }
+void EndFrame() { s_context->endFrame(); }
+void PresentFrame(bool fullSync) { s_context->presentFrame(fullSync); }
+
+void FlushGraphicsAndWait() { s_context->flushGraphicsAndWait(); }
+
+void ReadFrame(int* backbuffer, int width, int height) { s_context->readFrame(backbuffer, width, height); }
+
+void GetViewRay(int x, int y, Vec3& origin, Vec3& dir) { return s_context->getViewRay(x, y, origin, dir); }
+
+void SetFillMode(bool wire) { s_context->setFillMode(wire); }
+
+void SetCullMode(bool enabled) { s_context->setCullMode(enabled); }
+
+void SetView(Matrix44 view, Matrix44 projection) { return s_context->setView(view, projection); }
+
+FluidRenderer* CreateFluidRenderer(uint32_t width, uint32_t height) { return s_context->createFluidRenderer(width, height); }
+
+void DestroyFluidRenderer(FluidRenderer* renderer) { return s_context->destroyFluidRenderer(renderer); }
+
+FluidRenderBuffers* CreateFluidRenderBuffers(int numParticles, bool enableInterop) { return s_context->createFluidRenderBuffers(numParticles, enableInterop); }
+
+void UpdateFluidRenderBuffers(FluidRenderBuffers* buffers, Vec4* particles, float* densities, Vec4* anisotropy1, Vec4* anisotropy2, Vec4* anisotropy3, int numParticles, int* indices, int numIndices)
+{
+	s_context->updateFluidRenderBuffers(buffers, particles, densities, anisotropy1, anisotropy2, anisotropy3, numParticles, indices, numIndices);
+}
+
+void UpdateFluidRenderBuffers(FluidRenderBuffers* buffers, NvFlexSolver* flex, bool anisotropy, bool density) { return s_context->updateFluidRenderBuffers(buffers, flex, anisotropy, density); }
+
+void DestroyFluidRenderBuffers(FluidRenderBuffers* buffers) { return s_context->destroyFluidRenderBuffers(buffers); }
+
+ShadowMap* ShadowCreate() { return s_context->shadowCreate(); }
+
+void ShadowDestroy(ShadowMap* map) { s_context->shadowDestroy(map); }
+
+void ShadowBegin(ShadowMap* map) { s_context->shadowBegin(map); }
+
+void ShadowEnd() { s_context->shadowEnd(); }
+
+
+void BindSolidShader(Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowMap, float bias, Vec4 fogColor)
+{
+	s_context->bindSolidShader(lightPos, lightTarget, lightTransform, shadowMap, bias, fogColor);
+}
+
+void UnbindSolidShader() { s_context->unbindSolidShader(); }
+
+void DrawMesh(const Mesh* m, Vec3 color) { s_context->drawMesh(m, color); }
+
+void DrawCloth(const Vec4* positions, const Vec4* normals, const float* uvs, const int* indices, int numTris, int numPositions, int colorIndex, float expand, bool twosided, bool smooth)
+{
+	s_context->drawCloth(positions, normals, uvs, indices, numTris, numPositions, colorIndex, expand, twosided, smooth);
+}
+
+void DrawRope(Vec4* positions, int* indices, int numIndices, float radius, int color)
+{
+	s_context->drawRope(positions, indices, numIndices, radius, color);
+}
+
+void DrawPlane(const Vec4& p, bool color) { s_context->drawPlane(p, color); }
+
+void DrawPlanes(Vec4* planes, int n, float bias) { s_context->drawPlanes(planes, n, bias); }
+
+GpuMesh* CreateGpuMesh(const Mesh* m)
+{
+	return m ? s_context->createGpuMesh(m) : nullptr;
+}
+
+void DestroyGpuMesh(GpuMesh* m) { s_context->destroyGpuMesh(m); }
+
+void DrawGpuMesh(GpuMesh* m, const Matrix44& xform, const Vec3& color) { s_context->drawGpuMesh(m, xform, color); }
+
+void DrawGpuMeshInstances(GpuMesh* m, const Matrix44* xforms, int n, const Vec3& color) { s_context->drawGpuMeshInstances(m, xforms, n, color); }
+
+void DrawPoints(FluidRenderBuffers* buffers, int n, int offset, float radius, float screenWidth, float screenAspect, float fov, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowTex, bool showDensity)
+{
+	s_context->drawPoints(buffers, n, offset, radius, screenWidth, screenAspect, fov, lightPos, lightTarget, lightTransform, shadowTex, showDensity);
+}
+
+void RenderEllipsoids(FluidRenderer* renderer, FluidRenderBuffers* buffers, int n, int offset, float radius, float screenWidth, float screenAspect, float fov, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowMap, Vec4 color, float blur, float ior, bool debug)
+{
+	s_context->renderEllipsoids(renderer, buffers, n, offset, radius, screenWidth, screenAspect, fov, lightPos, lightTarget, lightTransform, shadowMap, color, blur, ior, debug);
+}
+
+DiffuseRenderBuffers* CreateDiffuseRenderBuffers(int numDiffuseParticles, bool& enableInterop) { return s_context->createDiffuseRenderBuffers(numDiffuseParticles, enableInterop); }
+
+void DestroyDiffuseRenderBuffers(DiffuseRenderBuffers* buffers) { return s_context->destroyDiffuseRenderBuffers(buffers); }
+
+void UpdateDiffuseRenderBuffers(DiffuseRenderBuffers* buffers, Vec4* diffusePositions, Vec4* diffuseVelocities, int numDiffuseParticles)
+{ 
+	s_context->updateDiffuseRenderBuffers(buffers, diffusePositions, diffuseVelocities, numDiffuseParticles); 
+}
+
+void UpdateDiffuseRenderBuffers(DiffuseRenderBuffers* buffers, NvFlexSolver* solver) { return s_context->updateDiffuseRenderBuffers(buffers, solver); }
+
+int GetNumDiffuseRenderParticles(DiffuseRenderBuffers* buffers) { return s_context->getNumDiffuseRenderParticles(buffers); }
+
+void RenderDiffuse(FluidRenderer* render, DiffuseRenderBuffers* buffers, int n, float radius, float screenWidth, float screenAspect, float fov, Vec4 color, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowMap, float motionBlur, float inscatter, float outscatter, bool shadowEnabled, bool front)
+{
+	s_context->drawDiffuse(render, buffers, n, radius, screenWidth, screenAspect, fov, color, lightPos, lightTarget, lightTransform, shadowMap, motionBlur, inscatter, outscatter, shadowEnabled, front);
+}
+
+void BeginLines() {	s_context->beginLines(); }
+
+void DrawLine(const Vec3& p, const Vec3& q, const Vec4& color) { s_context->drawLine(p, q, color); }
+
+void EndLines() { s_context->endLines(); }
+
+void BeginPoints(float size) {}
+void DrawPoint(const Vec3& p, const Vec4& color) {}
+void EndPoints() {}
+
+float RendererGetDeviceTimestamps(unsigned long long* begin, unsigned long long* end, unsigned long long* freq)
+{
+	return s_context->rendererGetDeviceTimestamps(begin, end, freq);
+}
+
+void* GetGraphicsCommandQueue() { return s_context->getGraphicsCommandQueue(); }
+void GraphicsTimerBegin() { s_context->graphicsTimerBegin(); }
+void GraphicsTimerEnd() { s_context->graphicsTimerEnd(); }
+
+void StartGpuWork() { s_context->startGpuWork(); }
+void EndGpuWork() { s_context->endGpuWork(); }
+
+void DrawImguiGraph() { return s_context->drawImguiGraph(); }
+
+void GetRenderDevice(void** deviceOut, void** contextOut) { return s_context->getRenderDevice(deviceOut, contextOut); }
+
+void InitRender(const RenderInitOptions& options)
+{
+	if (!s_context)
+	{
+		assert(false && "A context has not been set with SetDemoContext!");
+		return;
+	}
+	if (!s_context->initialize(options))
+	{
+		assert(!"Unable to initialize context!");
+		delete s_context;
+		s_context = nullptr;
+		return;
+	}
+}
+