forked from Mirrors/openclonk
226 lines
12 KiB
C++
226 lines
12 KiB
C++
/*
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* OpenClonk, http://www.openclonk.org
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*
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* Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de/
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* Copyright (c) 2009-2016, The OpenClonk Team and contributors
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*
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* Distributed under the terms of the ISC license; see accompanying file
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* "COPYING" for details.
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*
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* "Clonk" is a registered trademark of Matthes Bender, used with permission.
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* See accompanying file "TRADEMARK" for details.
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*
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* To redistribute this file separately, substitute the full license texts
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* for the above references.
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*/
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/* A wrapper class to OpenGL and Direct3d */
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#ifndef INC_STDDDRAW2
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#define INC_STDDDRAW2
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#include "graphics/C4Surface.h"
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#include "graphics/C4BltTransform.h"
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#include "lib/StdMeshMaterial.h"
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// Global Draw access pointer
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extern C4Draw *pDraw;
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inline void DwTo4UB(DWORD dwClr, unsigned char (&r)[4])
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{
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r[0] = (unsigned char)( (dwClr >> 16) & 0xff);
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r[1] = (unsigned char)( (dwClr >> 8) & 0xff);
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r[2] = (unsigned char)( (dwClr ) & 0xff);
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r[3] = (unsigned char)( (dwClr >> 24) & 0xff);
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}
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// pattern
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class C4Pattern
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{
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private:
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// pattern surface for new-style patterns
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class C4Surface *sfcPattern32;
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// Faster access
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uint32_t * CachedPattern; int Wdt; int Hgt;
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// pattern zoom factor; 0 means no zoom
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int Zoom;
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public:
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C4Pattern& operator=(const C4Pattern&);
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const C4Surface *getSurface() const { return sfcPattern32; }
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DWORD PatternClr(unsigned int iX, unsigned int iY) const; // apply pattern to color
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bool Set(class C4Surface *sfcSource, int iZoom=0); // set and enable pattern
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void SetZoom(int iZoom) { Zoom = iZoom; }
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void Clear(); // clear pattern
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C4Pattern(); // ctor
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~C4Pattern() { Clear(); } // dtor
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};
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// blit position on screen
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// This is the format required by GL_T2F_C4UB_V3F
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struct C4BltVertex
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{
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float tx, ty; // texture positions
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unsigned char color[4]; // color modulation
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float ftx,fty,ftz; // blit positions
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};
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// helper struct
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struct ZoomData
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{
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float Zoom;
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float X, Y;
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};
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class C4FoWRegion;
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// Shader combinations
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static const int C4SSC_MOD2 = 1; // signed addition instead of multiplication for clrMod
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static const int C4SSC_BASE = 2; // use a base texture instead of just a single color
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static const int C4SSC_OVERLAY = 4; // use a colored overlay on top of base texture
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static const int C4SSC_LIGHT = 8; // use dynamic+ambient lighting
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static const int C4SSC_NORMAL = 16; // extract normals from normal map instead of (0,0,1)
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// direct draw encapsulation
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class C4Draw
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{
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public:
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enum DrawOperation { OP_POINTS, OP_TRIANGLES };
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static constexpr int COLOR_DEPTH = 32;
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static constexpr int COLOR_DEPTH_BYTES = COLOR_DEPTH / 8;
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C4Draw(): MaxTexSize(0) { }
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virtual ~C4Draw() { pDraw=nullptr; }
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public:
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C4AbstractApp * pApp; // the application
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bool Active; // set if device is ready to render, etc.
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float gamma[C4MaxGammaRamps][3]; // input gammas
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float gammaOut[3]; // combined gamma
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int MaxTexSize;
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protected:
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float fClipX1,fClipY1,fClipX2,fClipY2; // clipper in unzoomed coordinates
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float fStClipX1,fStClipY1,fStClipX2,fStClipY2; // stored clipper in unzoomed coordinates
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int32_t iClipX1,iClipY1,iClipX2,iClipY2; // clipper in pixel coordinates
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bool ClipAll; // set if clipper clips everything away
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bool PrimaryLocked; // set if primary surface is locked (-> can't blit)
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C4Surface *RenderTarget; // current render target
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bool BlitModulated; // set if blits should be modulated with BlitModulateClr
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DWORD BlitModulateClr; // modulation color for blitting
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DWORD dwBlitMode; // extra flags for blit
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const C4FoWRegion* pFoW; // new-style FoW
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float ZoomX; float ZoomY;
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const StdMeshMatrix* MeshTransform; // Transformation to apply to mesh before rendering
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bool fUsePerspective;
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public:
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float Zoom;
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// General
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bool Init(C4AbstractApp * pApp, unsigned int iXRes, unsigned int iYRes, unsigned int iMonitor);
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virtual void Clear();
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virtual void Default();
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virtual CStdGLCtx *CreateContext(C4Window *, C4AbstractApp *) { return nullptr; }
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virtual bool OnResolutionChanged(unsigned int iXRes, unsigned int iYRes) = 0; // reinit clipper for new resolution
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// Clipper
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bool GetPrimaryClipper(int &rX1, int &rY1, int &rX2, int &rY2);
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bool SetPrimaryClipper(int iX1, int iY1, int iX2, int iY2);
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bool SubPrimaryClipper(int iX1, int iY1, int iX2, int iY2);
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C4Rect GetClipRect() const;
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C4Rect GetOutRect() const;
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bool StorePrimaryClipper();
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bool RestorePrimaryClipper();
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bool NoPrimaryClipper();
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bool ApplyPrimaryClipper(C4Surface * sfcSurface);
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bool DetachPrimaryClipper(C4Surface * sfcSurface);
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virtual bool UpdateClipper() = 0; // set current clipper to render target
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// Surface
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bool GetSurfaceSize(C4Surface * sfcSurface, int &iWdt, int &iHgt);
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void Grayscale(C4Surface * sfcSfc, int32_t iOffset = 0);
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void LockingPrimary() { PrimaryLocked=true; }
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void PrimaryUnlocked() { PrimaryLocked=false; }
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virtual bool PrepareMaterial(StdMeshMatManager& mat_manager, StdMeshMaterialLoader& loader, StdMeshMaterial& mat) = 0; // Find best technique, fail if there is none
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virtual bool PrepareRendering(C4Surface * sfcToSurface) = 0; // check if/make rendering possible to given surface
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virtual bool EnsureMainContextSelected() = 0;
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virtual bool PrepareSpriteShader(C4Shader& shader, const char* name, int ssc, C4GroupSet* pGroups, const char* const* additionalDefines, const char* const* additionalSlices) = 0; // create sprite shader
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// Blit
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virtual void BlitLandscape(C4Surface * sfcSource, float fx, float fy,
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C4Surface * sfcTarget, float tx, float ty, float wdt, float hgt);
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void Blit8Fast(CSurface8 * sfcSource, int fx, int fy,
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C4Surface * sfcTarget, int tx, int ty, int wdt, int hgt);
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bool Blit(C4Surface * sfcSource, float fx, float fy, float fwdt, float fhgt,
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C4Surface * sfcTarget, float tx, float ty, float twdt, float thgt,
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bool fSrcColKey=false, const C4BltTransform *pTransform=nullptr);
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bool BlitUnscaled(C4Surface * sfcSource, float fx, float fy, float fwdt, float fhgt,
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C4Surface * sfcTarget, float tx, float ty, float twdt, float thgt,
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bool fSrcColKey=false, const C4BltTransform *pTransform=nullptr);
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bool RenderMesh(StdMeshInstance &instance, C4Surface * sfcTarget, float tx, float ty, float twdt, float thgt, DWORD dwPlayerColor, C4BltTransform* pTransform); // Call PrepareMaterial with Mesh's material before
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virtual void PerformMesh(StdMeshInstance &instance, float tx, float ty, float twdt, float thgt, DWORD dwPlayerColor, C4BltTransform* pTransform) = 0;
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bool Blit8(C4Surface * sfcSource, int fx, int fy, int fwdt, int fhgt, // force 8bit-blit (inline)
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C4Surface * sfcTarget, int tx, int ty, int twdt, int thgt,
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bool fSrcColKey=false, const C4BltTransform *pTransform=nullptr);
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bool BlitSimple(C4Surface * sfcSource, int fx, int fy, int fwdt, int fhgt,
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C4Surface * sfcTarget, int tx, int ty, int twdt, int thgt,
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bool fTransparency=true);
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bool BlitSurface(C4Surface * sfcSurface, C4Surface * sfcTarget, int tx, int ty, bool fBlitBase);
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bool BlitSurfaceTile(C4Surface * sfcSurface, C4Surface * sfcTarget, float iToX, float iToY, float iToWdt, float iToHgt, float iOffsetX, float iOffsetY, C4ShaderCall* shader_call);
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virtual void FillBG(DWORD dwClr=0) = 0;
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// Text
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enum { DEFAULT_MESSAGE_COLOR = 0xffffffff };
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bool TextOut(const char *szText, CStdFont &rFont, float fZoom, C4Surface * sfcDest, float iTx, float iTy, DWORD dwFCol=0xffffffff, BYTE byForm=ALeft, bool fDoMarkup=true);
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bool StringOut(const char *szText, CStdFont &rFont, float fZoom, C4Surface * sfcDest, float iTx, float iTy, DWORD dwFCol=0xffffffff, BYTE byForm=ALeft, bool fDoMarkup=true);
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// Drawing
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virtual void PerformMultiPix(C4Surface* sfcTarget, const C4BltVertex* vertices, unsigned int n_vertices, C4ShaderCall* shader_call) = 0;
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virtual void PerformMultiLines(C4Surface* sfcTarget, const C4BltVertex* vertices, unsigned int n_vertices, float width, C4ShaderCall* shader_call) = 0;
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virtual void PerformMultiTris(C4Surface* sfcTarget, const C4BltVertex* vertices, unsigned int n_vertices, const C4BltTransform* pTransform, C4TexRef* pTex, C4TexRef* pOverlay, C4TexRef* pNormal, DWORD dwOverlayClrMod, C4ShaderCall* shader_call) = 0; // blit the same texture many times
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// Convenience drawing functions
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void DrawBoxDw(C4Surface * sfcDest, int iX1, int iY1, int iX2, int iY2, DWORD dwClr); // calls DrawBoxFade
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void DrawBoxFade(C4Surface * sfcDest, float iX, float iY, float iWdt, float iHgt, DWORD dwClr1, DWORD dwClr2, DWORD dwClr3, DWORD dwClr4, C4ShaderCall* shader_call); // calls DrawQuadDw
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void DrawPatternedCircle(C4Surface * sfcDest, int x, int y, int r, BYTE col, C4Pattern & Pattern, CStdPalette &rPal);
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void DrawFrameDw(C4Surface * sfcDest, int x1, int y1, int x2, int y2, DWORD dwClr, float width=1.0f);
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void DrawQuadDw(C4Surface * sfcTarget, float *ipVtx, DWORD dwClr1, DWORD dwClr2, DWORD dwClr3, DWORD dwClr4, C4ShaderCall* shader_call);
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void DrawPix(C4Surface * sfcDest, float tx, float ty, DWORD dwCol); // Consider using PerformMultiPix if you draw more than one pixel
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void DrawLineDw(C4Surface * sfcTarget, float x1, float y1, float x2, float y2, DWORD dwClr, float width = 1.0f); // Consider using PerformMultiLines if you draw more than one line
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void DrawCircleDw(C4Surface * sfcTarget, float cx, float cy, float r, DWORD dwClr, float width = 1.0f);
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// gamma
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void SetGamma(float r, float g, float b, int32_t iRampIndex); // set gamma
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void ResetGamma(); // reset gamma to default
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DWORD ApplyGammaTo(DWORD dwClr); // apply gamma to given color
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// blit states
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void ActivateBlitModulation(DWORD dwWithClr) { BlitModulated=true; BlitModulateClr=dwWithClr; } // modulate following blits with a given color
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void DeactivateBlitModulation() { BlitModulated=false; } // stop color modulation of blits
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bool GetBlitModulation(DWORD &rdwColor) { rdwColor=BlitModulateClr; return BlitModulated; }
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void SetBlitMode(DWORD dwBlitMode) { this->dwBlitMode=dwBlitMode & C4GFXBLIT_ALL; } // set blit mode extra flags (additive blits, mod2-modulation, etc.)
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void ResetBlitMode() { dwBlitMode=0; }
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void SetFoW(const C4FoWRegion* fow) { pFoW = fow; }
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const C4FoWRegion* GetFoW() const { return pFoW; }
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void SetZoom(float X, float Y, float Zoom);
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void SetZoom(const ZoomData &zoom) { SetZoom(zoom.X, zoom.Y, zoom.Zoom); }
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void GetZoom(ZoomData *r) { r->Zoom=Zoom; r->X=ZoomX; r->Y=ZoomY; }
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void ApplyZoom(float & X, float & Y);
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void RemoveZoom(float & X, float & Y);
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void SetMeshTransform(const StdMeshMatrix* Transform) { MeshTransform = Transform; } // if non-nullptr make sure to keep matrix valid
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void SetPerspective(bool fSet) { fUsePerspective = fSet; }
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// device objects
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virtual bool RestoreDeviceObjects() = 0; // restore device dependant objects
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virtual bool InvalidateDeviceObjects() = 0; // free device dependant objects
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virtual bool DeviceReady() = 0; // return whether device exists
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protected:
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bool StringOut(const char *szText, C4Surface * sfcDest, float iTx, float iTy, DWORD dwFCol, BYTE byForm, bool fDoMarkup, C4Markup &Markup, CStdFont *pFont, float fZoom);
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bool CreatePrimaryClipper(unsigned int iXRes, unsigned int iYRes);
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virtual bool Error(const char *szMsg);
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friend class C4Surface;
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friend class C4TexRef;
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friend class C4Pattern;
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};
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struct ZoomDataStackItem: public ZoomData
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{
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ZoomDataStackItem(float newzoom) { pDraw->GetZoom(this); pDraw->SetZoom(X, Y, newzoom); }
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ZoomDataStackItem(float X, float Y, float newzoom) { pDraw->GetZoom(this); pDraw->SetZoom(X, Y, newzoom); }
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~ZoomDataStackItem() { pDraw->SetZoom(*this); }
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};
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bool DDrawInit(C4AbstractApp * pApp, unsigned int iXRes, unsigned int iYRes, unsigned int iMonitor);
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#endif // INC_STDDDRAW2
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