//========= Copyright Valve Corporation, All rights reserved. ============//
//
// Purpose: A set of utilities to render standard shapes
//
//===========================================================================//

#ifndef RENDERUTILS_H
#define RENDERUTILS_H

#ifdef _WIN32
#pragma once
#endif

#include "Color.h"
#include "tier2/tier2.h"

//-----------------------------------------------------------------------------
// Forward declarations
//-----------------------------------------------------------------------------
class Vector;
class QAngle;
class IMaterial;
struct matrix3x4_t;

// Renders a wireframe sphere
void RenderWireframeSphere(const Vector &vCenter, float flRadius, int nTheta,
                           int nPhi, Color c, bool bZBuffer);

// Renders a sphere
void RenderSphere(const Vector &vCenter, float flRadius, int nTheta, int nPhi,
                  Color c, bool bZBuffer);
void RenderSphere(const Vector &vCenter, float flRadius, int nTheta, int nPhi,
                  Color c, IMaterial *pMaterial);

// Renders a wireframe box relative to an origin
void RenderWireframeBox(const Vector &vOrigin, const QAngle &angles,
                        const Vector &vMins, const Vector &vMaxs, Color c,
                        bool bZBuffer);

// Renders a swept wireframe box
void RenderWireframeSweptBox(const Vector &vStart, const Vector &vEnd,
                             const QAngle &angles, const Vector &vMins,
                             const Vector &vMaxs, Color c, bool bZBuffer);

// Renders a solid box
void RenderBox(const Vector &origin, const QAngle &angles, const Vector &mins,
               const Vector &maxs, Color c, bool bZBuffer,
               bool bInsideOut = false);
void RenderBox(const Vector &origin, const QAngle &angles, const Vector &mins,
               const Vector &maxs, Color c, IMaterial *pMaterial,
               bool bInsideOut = false);

// Renders axes, red->x, green->y, blue->z (axis aligned)
void RenderAxes(const Vector &vOrigin, float flScale, bool bZBuffer);
void RenderAxes(const matrix3x4_t &transform, float flScale, bool bZBuffer);

// Render a line
void RenderLine(const Vector &v1, const Vector &v2, Color c, bool bZBuffer);

// Draws a triangle
void RenderTriangle(const Vector &p1, const Vector &p2, const Vector &p3,
                    Color c, bool bZBuffer);
void RenderTriangle(const Vector &p1, const Vector &p2, const Vector &p3,
                    Color c, IMaterial *pMaterial);

// Draws a axis-aligned quad
void RenderQuad(IMaterial *pMaterial, float x, float y, float w, float h,
                float z, float s0, float t0, float s1, float t1,
                const Color &clr);

// Renders a screen space quad
void DrawScreenSpaceRectangle(
    IMaterial *pMaterial, int nDestX, int nDestY, int nWidth,
    int nHeight,  // Rect to draw into in screen space
    float flSrcTextureX0,
    float flSrcTextureY0,  // which texel you want to appear at destx/y
    float flSrcTextureX1,
    float flSrcTextureY1,  // which texel you want to appear at destx+width-1,
                           // desty+height-1
    int nSrcTextureWidth, int nSrcTextureHeight,  // needed for fixup
    void *pClientRenderable = NULL,  // Used to pass to the bind proxies
    int nXDice = 1, int nYDice = 1,
    float fDepth = 0.0);  // what Z value to put in the verts

#endif  // RENDERUTILS_H