forked from Mirrors/openclonk
981 lines
29 KiB
C++
981 lines
29 KiB
C++
/*
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* OpenClonk, http://www.openclonk.org
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*
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* Copyright (c) 2002, 2005-2006 Sven Eberhardt
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* Copyright (c) 2005-2009 Günther Brammer <gbrammer@gmx.de>
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* Copyright (c) 2007 Julian Raschke
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* Copyright (c) 2008 Matthes Bender
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* Copyright (c) 2001-2009, RedWolf Design GmbH, http://www.clonk.de
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* Copyright (c) 2009 Carl-Philip Hänsch <c-p.haensch@vr-web.de>
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*
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* Portions might be copyrighted by other authors who have contributed
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* to OpenClonk.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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* See isc_license.txt for full license and disclaimer.
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*
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* "Clonk" is a registered trademark of Matthes Bender.
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* See clonk_trademark_license.txt for full license.
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*/
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/* OpenGL implementation of NewGfx */
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#include <Standard.h>
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#include <StdGL.h>
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#include <StdSurface2.h>
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#include <StdWindow.h>
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#include "C4Rect.h"
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#ifdef USE_GL
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#include <stdio.h>
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#include <math.h>
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#include <limits.h>
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static void glColorDw(DWORD dwClr)
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{
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glColor4ub(GLubyte(dwClr>>16), GLubyte(dwClr>>8), GLubyte(dwClr), GLubyte(dwClr>>24));
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}
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// GLubyte (&r)[4] is a reference to an array of four bytes named r.
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static void DwTo4UB(DWORD dwClr, GLubyte (&r)[4])
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{
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//unsigned char r[4];
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r[0] = GLubyte(dwClr>>16);
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r[1] = GLubyte(dwClr>>8);
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r[2] = GLubyte(dwClr);
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r[3] = GLubyte(dwClr>>24);
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}
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CStdGL::CStdGL()
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{
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Default();
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// global ptr
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pGL = this;
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shaders[0] = 0;
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vbo = 0;
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}
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CStdGL::~CStdGL()
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{
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Clear();
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pGL=NULL;
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}
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void CStdGL::Clear()
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{
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#ifndef USE_SDL_MAINLOOP
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CStdDDraw::Clear();
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#endif
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NoPrimaryClipper();
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if (pTexMgr) pTexMgr->IntUnlock();
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InvalidateDeviceObjects();
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NoPrimaryClipper();
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// del main surfaces
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if (lpPrimary) delete lpPrimary;
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lpPrimary = lpBack = NULL;
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RenderTarget = NULL;
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if (lines_tex) { glDeleteTextures(1, &lines_tex); lines_tex = 0; }
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// clear context
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if (pCurrCtx) pCurrCtx->Deselect();
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MainCtx.Clear();
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pCurrCtx=NULL;
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#ifndef USE_SDL_MAINLOOP
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CStdDDraw::Clear();
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#endif
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}
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bool CStdGL::PageFlip(RECT *pSrcRt, RECT *pDstRt, CStdWindow * pWindow)
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{
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// call from gfx thread only!
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if (!pApp || !pApp->AssertMainThread()) return false;
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// safety
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if (!pCurrCtx) return false;
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// end the scene and present it
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if (!pCurrCtx->PageFlip()) return false;
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// success!
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return true;
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}
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void CStdGL::FillBG(DWORD dwClr)
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{
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if (!pCurrCtx) if (!MainCtx.Select()) return;
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glClearColor((float)GetBValue(dwClr)/255.0f, (float)GetGValue(dwClr)/255.0f, (float)GetRValue(dwClr)/255.0f, 1.0f);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
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}
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bool CStdGL::UpdateClipper()
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{
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// no render target? do nothing
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if (!RenderTarget || !Active) return true;
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// negative/zero?
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int iWdt=Min(iClipX2, RenderTarget->Wdt-1)-iClipX1+1;
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int iHgt=Min(iClipY2, RenderTarget->Hgt-1)-iClipY1+1;
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int iX=iClipX1; if (iX<0) { iWdt+=iX; iX=0; }
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int iY=iClipY1; if (iY<0) { iHgt+=iY; iY=0; }
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if (iWdt<=0 || iHgt<=0)
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{
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ClipAll=true;
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return true;
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}
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ClipAll=false;
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// set it
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glViewport(iX, RenderTarget->Hgt-iY-iHgt, iWdt, iHgt);
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glMatrixMode(GL_PROJECTION);
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glLoadIdentity();
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gluOrtho2D((GLdouble) iX, (GLdouble) (iX+iWdt), (GLdouble) (iY+iHgt), (GLdouble) iY);
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//gluOrtho2D((GLdouble) 0, (GLdouble) xRes, (GLdouble) yRes, (GLdouble) yRes-iHgt);
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return true;
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}
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bool CStdGL::PrepareRendering(SURFACE sfcToSurface)
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{
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// call from gfx thread only!
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if (!pApp || !pApp->AssertMainThread()) return false;
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// device?
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if (!pCurrCtx) if (!MainCtx.Select()) return false;
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// not ready?
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if (!Active)
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//if (!RestoreDeviceObjects())
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return false;
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// target?
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if (!sfcToSurface) return false;
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// target locked?
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if (sfcToSurface->Locked) return false;
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// target is already set as render target?
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if (sfcToSurface != RenderTarget)
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{
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// target is a render-target?
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if (!sfcToSurface->IsRenderTarget()) return false;
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// set target
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RenderTarget=sfcToSurface;
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// new target has different size; needs other clipping rect
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UpdateClipper();
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}
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// done
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return true;
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}
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void CStdGL::SetupTextureEnv(bool fMod2, bool landscape)
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{
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if (shaders[0])
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{
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GLuint s = landscape ? 2 : (fMod2 ? 1 : 0);
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if (Saturation < 255)
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{
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s += 3;
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}
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if (fUseClrModMap)
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{
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s += 6;
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}
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glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, shaders[s]);
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if (Saturation < 255)
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{
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GLfloat bla[4] = { Saturation / 255.0f, Saturation / 255.0f, Saturation / 255.0f, 1.0f };
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glProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 0, bla);
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}
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}
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// texture environment
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else
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{
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glTexEnvi(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_COMBINE);
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_RGB, fMod2 ? GL_ADD_SIGNED : GL_MODULATE);
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glTexEnvf(GL_TEXTURE_ENV, GL_RGB_SCALE, fMod2 ? 2.0f : 1.0f);
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glTexEnvi(GL_TEXTURE_ENV, GL_COMBINE_ALPHA, GL_ADD);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_RGB, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_RGB, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE0_ALPHA, GL_TEXTURE);
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glTexEnvi(GL_TEXTURE_ENV, GL_SOURCE1_ALPHA, GL_PRIMARY_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_RGB, GL_SRC_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_RGB, GL_SRC_COLOR);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND0_ALPHA, GL_SRC_ALPHA);
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glTexEnvi(GL_TEXTURE_ENV, GL_OPERAND1_ALPHA, GL_SRC_ALPHA);
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}
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// set modes
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glShadeModel((fUseClrModMap && !shaders[0] && !DDrawCfg.NoBoxFades) ? GL_SMOOTH : GL_FLAT);
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}
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void CStdGL::PerformBlt(CBltData &rBltData, CTexRef *pTex, DWORD dwModClr, bool fMod2, bool fExact)
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{
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// clipping
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if (DDrawCfg.ClipManually && rBltData.pTransform) ClipPoly(rBltData);
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// global modulation map
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int i;
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bool fAnyModNotBlack = !!dwModClr;
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if (!shaders[0] && fUseClrModMap && dwModClr)
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{
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fAnyModNotBlack = false;
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for (i=0; i<rBltData.byNumVertices; ++i)
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{
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float x = rBltData.vtVtx[i].ftx;
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float y = rBltData.vtVtx[i].fty;
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if (rBltData.pTransform)
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{
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rBltData.pTransform->TransformPoint(x,y);
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}
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DWORD c = pClrModMap->GetModAt(int(x), int(y));
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ModulateClr(c, dwModClr);
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if (c) fAnyModNotBlack = true;
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DwTo4UB(c, rBltData.vtVtx[i].color);
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}
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}
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else
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{
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for (i=0; i<rBltData.byNumVertices; ++i)
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DwTo4UB(dwModClr, rBltData.vtVtx[i].color);
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}
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// reset MOD2 for completely black modulations
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fMod2 = fMod2 && fAnyModNotBlack;
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SetupTextureEnv(fMod2, false);
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glBindTexture(GL_TEXTURE_2D, pTex->texName);
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if (!fExact && !DDrawCfg.PointFiltering)
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{
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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}
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glMatrixMode(GL_TEXTURE);
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float matrix[16];
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matrix[0]=rBltData.TexPos.mat[0]; matrix[1]=rBltData.TexPos.mat[3]; matrix[2]=0; matrix[3]=rBltData.TexPos.mat[6];
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matrix[4]=rBltData.TexPos.mat[1]; matrix[5]=rBltData.TexPos.mat[4]; matrix[6]=0; matrix[7]=rBltData.TexPos.mat[7];
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matrix[8]=0; matrix[9]=0; matrix[10]=1; matrix[11]=0;
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matrix[12]=rBltData.TexPos.mat[2]; matrix[13]=rBltData.TexPos.mat[5]; matrix[14]=0; matrix[15]=rBltData.TexPos.mat[8];
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glLoadMatrixf(matrix);
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if (shaders[0] && fUseClrModMap)
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{
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glActiveTexture(GL_TEXTURE3);
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glLoadIdentity();
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CSurface * pSurface = pClrModMap->GetSurface();
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glScalef(1.0f/(pClrModMap->GetResolutionX()*(*pSurface->ppTex)->iSize), 1.0f/(pClrModMap->GetResolutionY()*(*pSurface->ppTex)->iSize), 1.0f);
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glTranslatef(float(-pClrModMap->OffX), float(-pClrModMap->OffY), 0.0f);
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}
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if (rBltData.pTransform)
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{
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float * mat = rBltData.pTransform->mat;
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matrix[0]=mat[0]; matrix[1]=mat[3]; matrix[2]=0; matrix[3]=mat[6];
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matrix[4]=mat[1]; matrix[5]=mat[4]; matrix[6]=0; matrix[7]=mat[7];
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matrix[8]=0; matrix[9]=0; matrix[10]=1; matrix[11]=0;
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matrix[12]=mat[2]; matrix[13]=mat[5]; matrix[14]=0; matrix[15]=mat[8];
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if (shaders[0] && fUseClrModMap)
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{
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glMultMatrixf(matrix);
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}
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glActiveTexture(GL_TEXTURE0);
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glMatrixMode(GL_MODELVIEW);
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glLoadMatrixf(matrix);
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}
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else
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{
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glActiveTexture(GL_TEXTURE0);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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}
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// draw polygon
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for (i=0; i<rBltData.byNumVertices; ++i)
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{
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rBltData.vtVtx[i].tx = rBltData.vtVtx[i].ftx;
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rBltData.vtVtx[i].ty = rBltData.vtVtx[i].fty;
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//if (rBltData.pTransform) rBltData.pTransform->TransformPoint(rBltData.vtVtx[i].ftx, rBltData.vtVtx[i].fty);
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rBltData.vtVtx[i].ftz = 0;
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}
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if (vbo)
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{
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glBufferDataARB(GL_ARRAY_BUFFER_ARB, rBltData.byNumVertices*sizeof(CBltVertex), rBltData.vtVtx, GL_STREAM_DRAW_ARB);
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glInterleavedArrays(GL_T2F_C4UB_V3F, sizeof(CBltVertex), 0);
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}
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else
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{
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glInterleavedArrays(GL_T2F_C4UB_V3F, sizeof(CBltVertex), rBltData.vtVtx);
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}
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if (shaders[0] && fUseClrModMap)
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{
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glClientActiveTexture(GL_TEXTURE3);
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glEnableClientState(GL_TEXTURE_COORD_ARRAY);
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glTexCoordPointer(2, GL_FLOAT, sizeof(CBltVertex), &rBltData.vtVtx[0].ftx);
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glClientActiveTexture(GL_TEXTURE0);
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}
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glDrawArrays(GL_POLYGON, 0, rBltData.byNumVertices);
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glLoadIdentity();
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if (!fExact && !DDrawCfg.PointFiltering)
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{
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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}
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}
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void CStdGL::BlitLandscape(SURFACE sfcSource, float fx, float fy,
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SURFACE sfcTarget, float tx, float ty, float wdt, float hgt, const SURFACE mattextures[])
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{
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//Blit(sfcSource, fx, fy, wdt, hgt, sfcTarget, tx, ty, wdt, hgt);return;
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// safety
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if (!sfcSource || !sfcTarget || !wdt || !hgt) return;
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assert(sfcTarget->IsRenderTarget());
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assert(!(dwBlitMode & C4GFXBLIT_MOD2));
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// Apply Zoom
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float twdt = wdt;
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float thgt = hgt;
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tx = (tx - ZoomX) * Zoom + ZoomX;
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ty = (ty - ZoomY) * Zoom + ZoomY;
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twdt *= Zoom;
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thgt *= Zoom;
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// bound
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if (ClipAll) return;
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// manual clipping? (primary surface only)
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if (DDrawCfg.ClipManuallyE)
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{
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int iOver;
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// Left
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iOver=int(tx)-iClipX1;
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if (iOver<0)
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{
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wdt+=iOver;
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twdt+=iOver*Zoom;
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fx-=iOver;
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tx=float(iClipX1);
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}
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// Top
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iOver=int(ty)-iClipY1;
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if (iOver<0)
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{
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hgt+=iOver;
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thgt+=iOver*Zoom;
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fy-=iOver;
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ty=float(iClipY1);
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}
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// Right
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iOver=iClipX2+1-int(tx+twdt);
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if (iOver<0)
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{
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wdt+=iOver/Zoom;
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twdt+=iOver;
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}
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// Bottom
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iOver=iClipY2+1-int(ty+thgt);
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if (iOver<0)
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{
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hgt+=iOver/Zoom;
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thgt+=iOver;
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}
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}
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// inside screen?
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if (wdt<=0 || hgt<=0) return;
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// prepare rendering to surface
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if (!PrepareRendering(sfcTarget)) return;
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// texture present?
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if (!sfcSource->ppTex)
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{
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return;
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}
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// get involved texture offsets
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int iTexSize=sfcSource->iTexSize;
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int iTexX=Max(int(fx/iTexSize), 0);
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int iTexY=Max(int(fy/iTexSize), 0);
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int iTexX2=Min((int)(fx+wdt-1)/iTexSize +1, sfcSource->iTexX);
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int iTexY2=Min((int)(fy+hgt-1)/iTexSize +1, sfcSource->iTexY);
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// blit from all these textures
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SetTexture();
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if (mattextures)
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{
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glActiveTexture(GL_TEXTURE1);
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glEnable(GL_TEXTURE_2D);
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glActiveTexture(GL_TEXTURE0);
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}
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DWORD dwModMask = 0;
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SetupTextureEnv(false, !!mattextures);
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glMatrixMode(GL_MODELVIEW);
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glLoadIdentity();
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glMatrixMode(GL_TEXTURE);
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glLoadIdentity();
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for (int iY=iTexY; iY<iTexY2; ++iY)
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{
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for (int iX=iTexX; iX<iTexX2; ++iX)
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{
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// blit
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DWORD dwModClr = BlitModulated ? BlitModulateClr : 0xffffff;
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glActiveTexture(GL_TEXTURE0);
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CTexRef *pTex = *(sfcSource->ppTex + iY * sfcSource->iTexX + iX);
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glBindTexture(GL_TEXTURE_2D, pTex->texName);
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if (!mattextures && Zoom != 1.0)
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{
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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}
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else
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{
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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}
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// get current blitting offset in texture (beforing any last-tex-size-changes)
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int iBlitX=iTexSize*iX;
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int iBlitY=iTexSize*iY;
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// size changed? recalc dependant, relevant (!) values
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if (iTexSize != pTex->iSize)
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{
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iTexSize = pTex->iSize;
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}
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// get new texture source bounds
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FLOAT_RECT fTexBlt;
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// get new dest bounds
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FLOAT_RECT tTexBlt;
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// set up blit data as rect
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fTexBlt.left = Max<float>((float)(fx - iBlitX), 0.0f);
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tTexBlt.left = (fTexBlt.left + iBlitX - fx) * Zoom + tx;
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fTexBlt.top = Max<float>((float)(fy - iBlitY), 0.0f);
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tTexBlt.top = (fTexBlt.top + iBlitY - fy) * Zoom + ty;
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fTexBlt.right = Min<float>((float)(fx + wdt - iBlitX), (float)iTexSize);
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tTexBlt.right = (fTexBlt.right + iBlitX - fx) * Zoom + tx;
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fTexBlt.bottom= Min<float>((float)(fy + hgt - iBlitY), (float)iTexSize);
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tTexBlt.bottom= (fTexBlt.bottom+ iBlitY - fy) * Zoom + ty;
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CBltVertex Vtx[4];
|
|
// blit positions
|
|
Vtx[0].ftx = tTexBlt.left; Vtx[0].fty = tTexBlt.top;
|
|
Vtx[1].ftx = tTexBlt.right; Vtx[1].fty = tTexBlt.top;
|
|
Vtx[2].ftx = tTexBlt.right; Vtx[2].fty = tTexBlt.bottom;
|
|
Vtx[3].ftx = tTexBlt.left; Vtx[3].fty = tTexBlt.bottom;
|
|
// blit positions
|
|
Vtx[0].tx = fTexBlt.left; Vtx[0].ty = fTexBlt.top;
|
|
Vtx[1].tx = fTexBlt.right; Vtx[1].ty = fTexBlt.top;
|
|
Vtx[2].tx = fTexBlt.right; Vtx[2].ty = fTexBlt.bottom;
|
|
Vtx[3].tx = fTexBlt.left; Vtx[3].ty = fTexBlt.bottom;
|
|
|
|
// color modulation
|
|
// global modulation map
|
|
if (shaders[0] && fUseClrModMap)
|
|
{
|
|
glActiveTexture(GL_TEXTURE3);
|
|
glLoadIdentity();
|
|
CSurface * pSurface = pClrModMap->GetSurface();
|
|
glScalef(1.0f/(pClrModMap->GetResolutionX()*(*pSurface->ppTex)->iSize), 1.0f/(pClrModMap->GetResolutionY()*(*pSurface->ppTex)->iSize), 1.0f);
|
|
glTranslatef(float(-pClrModMap->OffX), float(-pClrModMap->OffY), 0.0f);
|
|
|
|
glClientActiveTexture(GL_TEXTURE3);
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(CBltVertex), &Vtx[0].ftx);
|
|
glClientActiveTexture(GL_TEXTURE0);
|
|
}
|
|
if (!shaders[0] && fUseClrModMap && dwModClr)
|
|
{
|
|
for (int i=0; i<4; ++i)
|
|
{
|
|
DWORD c = pClrModMap->GetModAt(int(Vtx[i].ftx), int(Vtx[i].fty));
|
|
ModulateClr(c, dwModClr);
|
|
DwTo4UB(c | dwModMask, Vtx[i].color);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (int i=0; i<4; ++i)
|
|
DwTo4UB(dwModClr | dwModMask, Vtx[i].color);
|
|
}
|
|
for (int i=0; i<4; ++i)
|
|
{
|
|
Vtx[i].tx /= iTexSize;
|
|
Vtx[i].ty /= iTexSize;
|
|
Vtx[i].ftx += DDrawCfg.fBlitOff;
|
|
Vtx[i].fty += DDrawCfg.fBlitOff;
|
|
Vtx[i].ftz = 0;
|
|
}
|
|
if(mattextures)
|
|
{
|
|
GLfloat shaderparam[4];
|
|
for (int cnt=1;cnt<127;cnt++)
|
|
{
|
|
if(mattextures[cnt])
|
|
{
|
|
shaderparam[0]=static_cast<GLfloat>(cnt)/255.0f;
|
|
glProgramLocalParameter4fvARB(GL_FRAGMENT_PROGRAM_ARB, 1, shaderparam);
|
|
//Bind Mat Texture
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glBindTexture(GL_TEXTURE_2D, (*(mattextures[cnt]->ppTex))->texName);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
|
|
glInterleavedArrays(GL_T2F_C4UB_V3F, sizeof(CBltVertex), Vtx);
|
|
glDrawArrays(GL_QUADS, 0, 4);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
glInterleavedArrays(GL_T2F_C4UB_V3F, sizeof(CBltVertex), Vtx);
|
|
glDrawArrays(GL_QUADS, 0, 4);
|
|
}
|
|
|
|
}
|
|
}
|
|
if (mattextures)
|
|
{
|
|
glActiveTexture(GL_TEXTURE1);
|
|
glDisable(GL_TEXTURE_2D);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
}
|
|
// reset texture
|
|
ResetTexture();
|
|
}
|
|
|
|
CStdGLCtx *CStdGL::CreateContext(CStdWindow * pWindow, CStdApp *pApp)
|
|
{
|
|
DebugLog(" gl: Create Context...");
|
|
// safety
|
|
if (!pWindow) return NULL;
|
|
// create it
|
|
CStdGLCtx *pCtx = new CStdGLCtx();
|
|
if (!pCtx->Init(pWindow, pApp))
|
|
{
|
|
delete pCtx; Error(" gl: Error creating secondary context!"); return NULL;
|
|
}
|
|
// done
|
|
return pCtx;
|
|
}
|
|
|
|
#ifdef _WIN32
|
|
CStdGLCtx *CStdGL::CreateContext(HWND hWindow, CStdApp *pApp)
|
|
{
|
|
// safety
|
|
if (!hWindow) return NULL;
|
|
// create it
|
|
CStdGLCtx *pCtx = new CStdGLCtx();
|
|
if (!pCtx->Init(NULL, pApp, hWindow))
|
|
{
|
|
delete pCtx; Error(" gl: Error creating secondary context!"); return NULL;
|
|
}
|
|
// done
|
|
return pCtx;
|
|
}
|
|
#endif
|
|
|
|
bool CStdGL::CreatePrimarySurfaces(bool Playermode, unsigned int iXRes, unsigned int iYRes, int iColorDepth, unsigned int iMonitor)
|
|
{
|
|
//remember fullscreen setting
|
|
fFullscreen = Playermode && !DDrawCfg.Windowed;
|
|
|
|
DebugLog(" gl: SetVideoMode...");
|
|
// Set window size only in playermode
|
|
if (Playermode)
|
|
{
|
|
// Always search for display mode, in case the user decides to activate fullscreen later
|
|
if (!pApp->SetVideoMode(iXRes, iYRes, iColorDepth, iMonitor, fFullscreen))
|
|
{
|
|
Error(" gl: No Display mode found; leaving current!");
|
|
fFullscreen = false;
|
|
}
|
|
if (!fFullscreen)
|
|
{
|
|
pApp->pWindow->SetSize(iXRes, iYRes);
|
|
}
|
|
}
|
|
|
|
// store options
|
|
byByteCnt=4; iClrDpt=iColorDepth;
|
|
|
|
// create lpPrimary and lpBack (used in first context selection)
|
|
lpPrimary=lpBack=new CSurface();
|
|
lpPrimary->fPrimary=true;
|
|
lpPrimary->AttachSfc(NULL, iXRes, iYRes);
|
|
lpPrimary->byBytesPP=byByteCnt;
|
|
|
|
// create+select gl context
|
|
DebugLog(" gl: Create Main Context...");
|
|
if (!MainCtx.Init(pApp->pWindow, pApp)) return Error(" gl: Error initializing context");
|
|
|
|
// BGRA Pixel Formats, Multitexturing, Texture Combine Environment Modes
|
|
if (!GLEW_VERSION_1_3)
|
|
{
|
|
return Error(" gl: OpenGL Version 1.3 or higher required.");
|
|
}
|
|
MaxTexSize = 64;
|
|
GLint s = 0;
|
|
glGetIntegerv(GL_MAX_TEXTURE_SIZE, &s);
|
|
if (s>0) MaxTexSize = s;
|
|
|
|
// lines texture
|
|
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
|
|
glGenTextures(1, &lines_tex);
|
|
glBindTexture(GL_TEXTURE_2D, lines_tex);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_MIRRORED_REPEAT);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_MIRRORED_REPEAT);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
const char * linedata = byByteCnt == 2 ? "\xff\xff\xff\xf0" : "\xff\xff\xff\xff\xff\xff\xff\x00";
|
|
glTexImage2D(GL_TEXTURE_2D, 0, 4, 1, 2, 0, GL_BGRA, byByteCnt == 2 ? GL_UNSIGNED_SHORT_4_4_4_4_REV : GL_UNSIGNED_INT_8_8_8_8_REV, linedata);
|
|
return RestoreDeviceObjects();
|
|
}
|
|
|
|
void CStdGL::DrawQuadDw(SURFACE sfcTarget, float *ipVtx, DWORD dwClr1, DWORD dwClr2, DWORD dwClr3, DWORD dwClr4)
|
|
{
|
|
// prepare rendering to target
|
|
if (!PrepareRendering(sfcTarget)) return;
|
|
// apply global modulation
|
|
ClrByCurrentBlitMod(dwClr1);
|
|
ClrByCurrentBlitMod(dwClr2);
|
|
ClrByCurrentBlitMod(dwClr3);
|
|
ClrByCurrentBlitMod(dwClr4);
|
|
// apply modulation map
|
|
if (fUseClrModMap)
|
|
{
|
|
ModulateClr(dwClr1, pClrModMap->GetModAt(int(ipVtx[0]), int(ipVtx[1])));
|
|
ModulateClr(dwClr2, pClrModMap->GetModAt(int(ipVtx[2]), int(ipVtx[3])));
|
|
ModulateClr(dwClr3, pClrModMap->GetModAt(int(ipVtx[4]), int(ipVtx[5])));
|
|
ModulateClr(dwClr4, pClrModMap->GetModAt(int(ipVtx[6]), int(ipVtx[7])));
|
|
}
|
|
// no clr fading supported
|
|
if (DDrawCfg.NoBoxFades)
|
|
{
|
|
NormalizeColors(dwClr1, dwClr2, dwClr3, dwClr4);
|
|
glShadeModel(GL_FLAT);
|
|
}
|
|
else
|
|
glShadeModel((dwClr1 == dwClr2 && dwClr1 == dwClr3 && dwClr1 == dwClr4) ? GL_FLAT : GL_SMOOTH);
|
|
// set blitting state
|
|
int iAdditive = dwBlitMode & C4GFXBLIT_ADDITIVE;
|
|
glBlendFunc(GL_ONE_MINUS_SRC_ALPHA, iAdditive ? GL_ONE : GL_SRC_ALPHA);
|
|
// draw two triangles
|
|
glInterleavedArrays(GL_V2F, sizeof(float)*2, ipVtx);
|
|
GLubyte colors[4][4];
|
|
DwTo4UB(dwClr1,colors[0]);
|
|
DwTo4UB(dwClr2,colors[1]);
|
|
DwTo4UB(dwClr3,colors[2]);
|
|
DwTo4UB(dwClr4,colors[3]);
|
|
glColorPointer(4,GL_UNSIGNED_BYTE,0,colors);
|
|
glEnableClientState(GL_COLOR_ARRAY);
|
|
glDrawArrays(GL_POLYGON, 0, 4);
|
|
glDisableClientState(GL_COLOR_ARRAY);
|
|
glShadeModel(GL_FLAT);
|
|
}
|
|
|
|
#ifdef _MSC_VER
|
|
static inline long int lrintf(float f)
|
|
{
|
|
long int i;
|
|
__asm {
|
|
fld f
|
|
fistp i
|
|
};
|
|
return i;
|
|
}
|
|
#endif
|
|
|
|
void CStdGL::PerformLine(SURFACE sfcTarget, float x1, float y1, float x2, float y2, DWORD dwClr)
|
|
{
|
|
// render target?
|
|
if (sfcTarget->IsRenderTarget())
|
|
{
|
|
// prepare rendering to target
|
|
if (!PrepareRendering(sfcTarget)) return;
|
|
SetTexture();
|
|
SetupTextureEnv(false, false);
|
|
float offx = y1 - y2;
|
|
float offy = x2 - x1;
|
|
float l = sqrtf(offx * offx + offy * offy);
|
|
// avoid division by zero
|
|
l += 0.000000005f;
|
|
offx /= l; offx *= Zoom;
|
|
offy /= l; offy *= Zoom;
|
|
CBltVertex vtx[4];
|
|
vtx[0].ftx = x1 + offx; vtx[0].fty = y1 + offy; vtx[0].ftz = 0;
|
|
vtx[1].ftx = x1 - offx; vtx[1].fty = y1 - offy; vtx[1].ftz = 0;
|
|
vtx[2].ftx = x2 - offx; vtx[2].fty = y2 - offy; vtx[2].ftz = 0;
|
|
vtx[3].ftx = x2 + offx; vtx[3].fty = y2 + offy; vtx[3].ftz = 0;
|
|
// global clr modulation map
|
|
DWORD dwClr1 = dwClr;
|
|
glMatrixMode(GL_TEXTURE);
|
|
glLoadIdentity();
|
|
if (fUseClrModMap)
|
|
{
|
|
if (shaders[0])
|
|
{
|
|
glActiveTexture(GL_TEXTURE3);
|
|
glLoadIdentity();
|
|
CSurface * pSurface = pClrModMap->GetSurface();
|
|
glScalef(1.0f/(pClrModMap->GetResolutionX()*(*pSurface->ppTex)->iSize), 1.0f/(pClrModMap->GetResolutionY()*(*pSurface->ppTex)->iSize), 1.0f);
|
|
glTranslatef(float(-pClrModMap->OffX), float(-pClrModMap->OffY), 0.0f);
|
|
|
|
glClientActiveTexture(GL_TEXTURE3);
|
|
glEnableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glTexCoordPointer(2, GL_FLOAT, sizeof(CBltVertex), &vtx[0].ftx);
|
|
glClientActiveTexture(GL_TEXTURE0);
|
|
}
|
|
else
|
|
{
|
|
ModulateClr(dwClr1, pClrModMap->GetModAt(lrintf(x1), lrintf(y1)));
|
|
ModulateClr(dwClr, pClrModMap->GetModAt(lrintf(x2), lrintf(y2)));
|
|
}
|
|
}
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity();
|
|
DwTo4UB(dwClr1,vtx[0].color);
|
|
DwTo4UB(dwClr1,vtx[1].color);
|
|
DwTo4UB(dwClr,vtx[2].color);
|
|
DwTo4UB(dwClr,vtx[3].color);
|
|
vtx[0].tx = 0; vtx[0].ty = 0;
|
|
vtx[1].tx = 0; vtx[1].ty = 2;
|
|
vtx[2].tx = 1; vtx[2].ty = 2;
|
|
vtx[3].tx = 1; vtx[3].ty = 0;
|
|
// draw two triangles
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glBindTexture(GL_TEXTURE_2D, lines_tex);
|
|
glInterleavedArrays(GL_T2F_C4UB_V3F, sizeof(CBltVertex), vtx);
|
|
glDrawArrays(GL_POLYGON, 0, 4);
|
|
glClientActiveTexture(GL_TEXTURE3);
|
|
glDisableClientState(GL_TEXTURE_COORD_ARRAY);
|
|
glClientActiveTexture(GL_TEXTURE0);
|
|
ResetTexture();
|
|
}
|
|
else
|
|
{
|
|
// emulate
|
|
if (!LockSurfaceGlobal(sfcTarget)) return;
|
|
ForLine((int32_t)x1,(int32_t)y1,(int32_t)x2,(int32_t)y2,&DLineSPix,(int) dwClr);
|
|
UnLockSurfaceGlobal(sfcTarget);
|
|
}
|
|
}
|
|
|
|
void CStdGL::PerformPix(SURFACE sfcTarget, float tx, float ty, DWORD dwClr)
|
|
{
|
|
// render target?
|
|
if (sfcTarget->IsRenderTarget())
|
|
{
|
|
if (!PrepareRendering(sfcTarget)) return;
|
|
int iAdditive = dwBlitMode & C4GFXBLIT_ADDITIVE;
|
|
// use a different blendfunc here because of GL_POINT_SMOOTH
|
|
glBlendFunc(GL_SRC_ALPHA, iAdditive ? GL_ONE : GL_ONE_MINUS_SRC_ALPHA);
|
|
// convert the alpha value for that blendfunc
|
|
glBegin(GL_POINTS);
|
|
glColorDw(InvertRGBAAlpha(dwClr));
|
|
glVertex2f(tx + 0.5f, ty + 0.5f);
|
|
glEnd();
|
|
}
|
|
else
|
|
{
|
|
// emulate
|
|
sfcTarget->SetPixDw((int)tx, (int)ty, dwClr);
|
|
}
|
|
}
|
|
|
|
static void DefineShaderARB(const char * p, GLuint & s)
|
|
{
|
|
glBindProgramARB (GL_FRAGMENT_PROGRAM_ARB, s);
|
|
glProgramStringARB (GL_FRAGMENT_PROGRAM_ARB, GL_PROGRAM_FORMAT_ASCII_ARB, strlen(p), p);
|
|
if (GL_INVALID_OPERATION == glGetError())
|
|
{
|
|
GLint errPos; glGetIntegerv (GL_PROGRAM_ERROR_POSITION_ARB, &errPos);
|
|
fprintf (stderr, "ARB program%d:%d: Error: %s\n", s, errPos, glGetString (GL_PROGRAM_ERROR_STRING_ARB));
|
|
s = 0;
|
|
}
|
|
}
|
|
|
|
bool CStdGL::RestoreDeviceObjects()
|
|
{
|
|
// safety
|
|
if (!lpPrimary) return false;
|
|
// delete any previous objects
|
|
InvalidateDeviceObjects();
|
|
// restore primary/back
|
|
RenderTarget=lpPrimary;
|
|
//lpPrimary->AttachSfc(NULL);
|
|
lpPrimary->byBytesPP=byByteCnt;
|
|
|
|
// set states
|
|
Active = pCurrCtx ? (pCurrCtx->Select()) : MainCtx.Select();
|
|
// restore gamma if active
|
|
if (Active)
|
|
EnableGamma();
|
|
// reset blit states
|
|
dwBlitMode = 0;
|
|
|
|
// Vertex Buffer Objects crash some versions of the free radeon driver. TODO: provide an option for them
|
|
if (0 && GLEW_ARB_vertex_buffer_object)
|
|
{
|
|
glGenBuffersARB(1, &vbo);
|
|
glBindBufferARB(GL_ARRAY_BUFFER_ARB, vbo);
|
|
glBufferDataARB(GL_ARRAY_BUFFER_ARB, 8 * sizeof(CBltVertex), 0, GL_STREAM_DRAW_ARB);
|
|
}
|
|
|
|
if(!DDrawCfg.Shader)
|
|
{
|
|
}
|
|
else if (!shaders[0] && GLEW_ARB_fragment_program)
|
|
{
|
|
glGenProgramsARB (sizeof(shaders)/sizeof(*shaders), shaders);
|
|
const char * preface =
|
|
"!!ARBfp1.0\n"
|
|
"TEMP tmp;\n"
|
|
// sample the texture
|
|
"TXP tmp, fragment.texcoord[0], texture, 2D;\n";
|
|
const char * alpha_add =
|
|
// perform the modulation
|
|
"MUL tmp.rgb, tmp, fragment.color.primary;\n"
|
|
"ADD_SAT tmp.a, tmp, fragment.color.primary;\n";
|
|
const char * funny_add =
|
|
// perform the modulation
|
|
"ADD tmp, tmp, fragment.color.primary;\n"
|
|
"MAD_SAT tmp, tmp, { 2.0, 2.0, 2.0, 1.0 }, { -1.0, -1.0, -1.0, 0.0 };\n";
|
|
const char * grey =
|
|
"TEMP grey;\n"
|
|
"DP3 grey, tmp, { 0.299, 0.587, 0.114, 1.0 };\n"
|
|
"LRP tmp.rgb, program.local[0], tmp, grey;\n";
|
|
const char * landscape =
|
|
"TEMP col;\n"
|
|
"MOV col.x, program.local[1].x;\n" //Load color to indentify
|
|
"ADD col.y, col.x, 0.001;\n"
|
|
"SUB col.z, col.x, 0.001;\n" //epsilon-range
|
|
"SGE tmp.r, tmp.b, 0.5015;\n" //Tunnel?
|
|
"MAD tmp.r, tmp.r, -0.5019, tmp.b;\n"
|
|
"SGE col.z, tmp.r, col.z;\n" //mat identified?
|
|
"SLT col.y, tmp.r, col.y;\n"
|
|
"TEMP coo;\n"
|
|
"MOV coo, fragment.texcoord;\n"
|
|
"MUL coo.xy, coo, 3.0;\n"
|
|
"TXP tmp, coo, texture[1], 2D;\n"
|
|
"MUL tmp.a, col.y, col.z;\n"
|
|
"SUB tmp.a, 1.0, tmp.a;\n";
|
|
const char * fow =
|
|
"TEMP fow;\n"
|
|
// sample the texture
|
|
"TXP fow, fragment.texcoord[3], texture[3], 2D;\n"
|
|
"LRP tmp.rgb, fow.aaaa, tmp, fow;\n";
|
|
const char * end =
|
|
"MOV result.color, tmp;\n"
|
|
"END\n";
|
|
DefineShaderARB(FormatString("%s%s%s", preface, alpha_add, end).getData(), shaders[0]);
|
|
DefineShaderARB(FormatString("%s%s%s", preface, funny_add, end).getData(), shaders[1]);
|
|
DefineShaderARB(FormatString("%s%s%s%s", preface, landscape, alpha_add, end).getData(), shaders[2]);
|
|
DefineShaderARB(FormatString("%s%s%s%s", preface, alpha_add, grey, end).getData(), shaders[3]);
|
|
DefineShaderARB(FormatString("%s%s%s%s", preface, funny_add, grey, end).getData(), shaders[4]);
|
|
DefineShaderARB(FormatString("%s%s%s%s%s", preface, landscape, alpha_add, grey, end).getData(), shaders[5]);
|
|
DefineShaderARB(FormatString("%s%s%s%s", preface, alpha_add, fow, end).getData(), shaders[6]);
|
|
DefineShaderARB(FormatString("%s%s%s%s", preface, funny_add, fow, end).getData(), shaders[7]);
|
|
DefineShaderARB(FormatString("%s%s%s%s%s", preface, landscape, alpha_add, fow, end).getData(), shaders[8]);
|
|
DefineShaderARB(FormatString("%s%s%s%s%s", preface, alpha_add, grey, fow, end).getData(), shaders[9]);
|
|
DefineShaderARB(FormatString("%s%s%s%s%s", preface, funny_add, grey, fow, end).getData(), shaders[10]);
|
|
DefineShaderARB(FormatString("%s%s%s%s%s%s", preface, landscape, alpha_add, grey, fow, end).getData(), shaders[11]);
|
|
}
|
|
// done
|
|
return Active;
|
|
}
|
|
|
|
bool CStdGL::InvalidateDeviceObjects()
|
|
{
|
|
bool fSuccess=true;
|
|
// clear gamma
|
|
#ifndef USE_SDL_MAINLOOP
|
|
DisableGamma();
|
|
#endif
|
|
// deactivate
|
|
Active=false;
|
|
// invalidate font objects
|
|
// invalidate primary surfaces
|
|
if (lpPrimary) lpPrimary->Clear();
|
|
if (shaders[0])
|
|
{
|
|
glDeleteProgramsARB(sizeof(shaders)/sizeof(*shaders), shaders);
|
|
shaders[0] = 0;
|
|
}
|
|
if (vbo)
|
|
{
|
|
glDeleteBuffersARB(1, &vbo);
|
|
vbo = 0;
|
|
}
|
|
return fSuccess;
|
|
}
|
|
|
|
void CStdGL::SetTexture()
|
|
{
|
|
glBlendFunc(GL_ONE_MINUS_SRC_ALPHA, (dwBlitMode & C4GFXBLIT_ADDITIVE) ? GL_ONE : GL_SRC_ALPHA);
|
|
if (shaders[0] && fUseClrModMap)
|
|
{
|
|
glEnable(GL_FRAGMENT_PROGRAM_ARB);
|
|
glActiveTexture(GL_TEXTURE3);
|
|
glEnable(GL_TEXTURE_2D);
|
|
glBindTexture(GL_TEXTURE_2D, (*pClrModMap->GetSurface()->ppTex)->texName);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
}
|
|
glActiveTexture(GL_TEXTURE0);
|
|
glEnable(GL_TEXTURE_2D);
|
|
}
|
|
|
|
void CStdGL::ResetTexture()
|
|
{
|
|
// disable texturing
|
|
if (shaders[0])
|
|
{
|
|
glDisable(GL_FRAGMENT_PROGRAM_ARB);
|
|
glActiveTexture(GL_TEXTURE3);
|
|
glDisable(GL_TEXTURE_2D);
|
|
glActiveTexture(GL_TEXTURE0);
|
|
}
|
|
glDisable(GL_TEXTURE_2D);
|
|
}
|
|
|
|
bool CStdGL::CheckGLError(const char *szAtOp)
|
|
{
|
|
GLenum err = glGetError();
|
|
if (!err) return true;
|
|
Log(szAtOp);
|
|
switch (err)
|
|
{
|
|
case GL_INVALID_ENUM: Log("GL_INVALID_ENUM"); break;
|
|
case GL_INVALID_VALUE: Log("GL_INVALID_VALUE"); break;
|
|
case GL_INVALID_OPERATION: Log("GL_INVALID_OPERATION"); break;
|
|
case GL_STACK_OVERFLOW: Log("GL_STACK_OVERFLOW"); break;
|
|
case GL_STACK_UNDERFLOW: Log("GL_STACK_UNDERFLOW"); break;
|
|
case GL_OUT_OF_MEMORY: Log("GL_OUT_OF_MEMORY"); break;
|
|
default: Log("unknown error"); break;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
CStdGL *pGL=NULL;
|
|
|
|
void CStdGL::TaskOut()
|
|
{
|
|
// deactivate
|
|
// backup textures
|
|
if (pTexMgr && fFullscreen) pTexMgr->IntLock();
|
|
// shutdown gl
|
|
InvalidateDeviceObjects();
|
|
if (pCurrCtx) pCurrCtx->Deselect();
|
|
}
|
|
|
|
void CStdGL::TaskIn()
|
|
{
|
|
// restore gl
|
|
//if (!DeviceReady()) MainCtx.Init(pWindow, pApp);
|
|
// restore textures
|
|
if (pTexMgr && fFullscreen) pTexMgr->IntUnlock();
|
|
// restore device stuff
|
|
RestoreDeviceObjects();
|
|
}
|
|
|
|
bool CStdGL::OnResolutionChanged(unsigned int iXRes, unsigned int iYRes)
|
|
{
|
|
InvalidateDeviceObjects();
|
|
RestoreDeviceObjects();
|
|
// Re-create primary clipper to adapt to new size.
|
|
CreatePrimaryClipper(iXRes, iYRes);
|
|
return true;
|
|
}
|
|
|
|
void CStdGL::Default()
|
|
{
|
|
CStdDDraw::Default();
|
|
//pCurrCtx = NULL;
|
|
iPixelFormat=0;
|
|
sfcFmt=0;
|
|
iClrDpt=0;
|
|
MainCtx.Clear();
|
|
}
|
|
|
|
#endif // USE_GL
|