From 7028cbe09c688437910a25623098762bf0fa592d Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Mon, 28 Mar 2016 22:28:34 +1000 Subject: Move Irrlicht to src/others. --- .../source/Irrlicht/CTRTextureGouraud.cpp | 468 --------------------- 1 file changed, 468 deletions(-) delete mode 100644 libraries/irrlicht-1.8.1/source/Irrlicht/CTRTextureGouraud.cpp (limited to 'libraries/irrlicht-1.8.1/source/Irrlicht/CTRTextureGouraud.cpp') diff --git a/libraries/irrlicht-1.8.1/source/Irrlicht/CTRTextureGouraud.cpp b/libraries/irrlicht-1.8.1/source/Irrlicht/CTRTextureGouraud.cpp deleted file mode 100644 index 3b2795d..0000000 --- a/libraries/irrlicht-1.8.1/source/Irrlicht/CTRTextureGouraud.cpp +++ /dev/null @@ -1,468 +0,0 @@ -// Copyright (C) 2002-2012 Nikolaus Gebhardt -// This file is part of the "Irrlicht Engine". -// For conditions of distribution and use, see copyright notice in irrlicht.h - -#include "CTRTextureGouraud.h" - -#ifdef _IRR_COMPILE_WITH_SOFTWARE_ - -namespace irr -{ -namespace video -{ - -//! constructor -CTRTextureGouraud::CTRTextureGouraud(IZBuffer* zbuffer) - : RenderTarget(0), ZBuffer(zbuffer), SurfaceWidth(0), SurfaceHeight(0), - BackFaceCullingEnabled(true), lockedZBuffer(0), - lockedSurface(0), lockedTexture(0), lockedTextureWidth(0), - textureXMask(0), textureYMask(0), Texture(0) -{ - #ifdef _DEBUG - setDebugName("CTRTextureGouraud"); - #endif - - if (ZBuffer) - zbuffer->grab(); -} - - - -//! destructor -CTRTextureGouraud::~CTRTextureGouraud() -{ - if (RenderTarget) - RenderTarget->drop(); - - if (ZBuffer) - ZBuffer->drop(); - - if (Texture) - Texture->drop(); -} - - - -//! sets the Texture -void CTRTextureGouraud::setTexture(video::IImage* texture) -{ - if (Texture) - Texture->drop(); - - Texture = texture; - - if (Texture) - { - Texture->grab(); - lockedTextureWidth = Texture->getDimension().Width; - - textureXMask = lockedTextureWidth-1; - textureYMask = Texture->getDimension().Height-1; - } -} - - - - -//! en or disables the backface culling -void CTRTextureGouraud::setBackfaceCulling(bool enabled) -{ - BackFaceCullingEnabled = enabled; -} - - - -//! sets a render target -void CTRTextureGouraud::setRenderTarget(video::IImage* surface, const core::rect& viewPort) -{ - if (RenderTarget) - RenderTarget->drop(); - - RenderTarget = surface; - - if (RenderTarget) - { - SurfaceWidth = RenderTarget->getDimension().Width; - SurfaceHeight = RenderTarget->getDimension().Height; - RenderTarget->grab(); - ViewPortRect = viewPort; - } -} - - - -//! draws an indexed triangle list -void CTRTextureGouraud::drawIndexedTriangleList(S2DVertex* vertices, s32 vertexCount, const u16* indexList, s32 triangleCount) -{ - const S2DVertex *v1, *v2, *v3; - - f32 tmpDiv; // temporary division factor - f32 longest; // saves the longest span - s32 height; // saves height of triangle - u16* targetSurface; // target pointer where to plot pixels - s32 spanEnd; // saves end of spans - f32 leftdeltaxf; // amount of pixels to increase on left side of triangle - f32 rightdeltaxf; // amount of pixels to increase on right side of triangle - s32 leftx, rightx; // position where we are - f32 leftxf, rightxf; // same as above, but as f32 values - s32 span; // current span - u16 *hSpanBegin, *hSpanEnd; // pointer used when plotting pixels - s32 leftR, leftG, leftB, rightR, rightG, rightB; // color values - s32 leftStepR, leftStepG, leftStepB, - rightStepR, rightStepG, rightStepB; // color steps - s32 spanR, spanG, spanB, spanStepR, spanStepG, spanStepB; // color interpolating values while drawing a span. - s32 leftTx, rightTx, leftTy, rightTy; // texture interpolating values - s32 leftTxStep, rightTxStep, leftTyStep, rightTyStep; // texture interpolating values - s32 spanTx, spanTy, spanTxStep, spanTyStep; // values of Texturecoords when drawing a span - core::rect TriangleRect; - - s32 leftZValue, rightZValue; - s32 leftZStep, rightZStep; - s32 spanZValue, spanZStep; // ZValues when drawing a span - TZBufferType* zTarget, *spanZTarget; // target of ZBuffer; - - lockedSurface = (u16*)RenderTarget->lock(); - lockedZBuffer = ZBuffer->lock(); - lockedTexture = (u16*)Texture->lock(); - - for (s32 i=0; iPos.X - v1->Pos.X) * (v3->Pos.Y - v2->Pos.Y)) - - ((v3->Pos.Y - v1->Pos.Y) * (v3->Pos.X - v2->Pos.X)); - - if (z < 0) - continue; - } - - //near plane clipping - - if (v1->ZValue<0 && v2->ZValue<0 && v3->ZValue<0) - continue; - - // sort for width for inscreen clipping - - if (v1->Pos.X > v2->Pos.X) swapVertices(&v1, &v2); - if (v1->Pos.X > v3->Pos.X) swapVertices(&v1, &v3); - if (v2->Pos.X > v3->Pos.X) swapVertices(&v2, &v3); - - if ((v1->Pos.X - v3->Pos.X) == 0) - continue; - - TriangleRect.UpperLeftCorner.X = v1->Pos.X; - TriangleRect.LowerRightCorner.X = v3->Pos.X; - - // sort for height for faster drawing. - - if (v1->Pos.Y > v2->Pos.Y) swapVertices(&v1, &v2); - if (v1->Pos.Y > v3->Pos.Y) swapVertices(&v1, &v3); - if (v2->Pos.Y > v3->Pos.Y) swapVertices(&v2, &v3); - - TriangleRect.UpperLeftCorner.Y = v1->Pos.Y; - TriangleRect.LowerRightCorner.Y = v3->Pos.Y; - - if (!TriangleRect.isRectCollided(ViewPortRect)) - continue; - - // calculate height of triangle - height = v3->Pos.Y - v1->Pos.Y; - if (!height) - continue; - - // calculate longest span - - longest = (v2->Pos.Y - v1->Pos.Y) / (f32)height * (v3->Pos.X - v1->Pos.X) + (v1->Pos.X - v2->Pos.X); - - spanEnd = v2->Pos.Y; - span = v1->Pos.Y; - leftxf = (f32)v1->Pos.X; - rightxf = (f32)v1->Pos.X; - - leftZValue = v1->ZValue; - rightZValue = v1->ZValue; - - leftR = rightR = video::getRed(v1->Color)<<8; - leftG = rightG = video::getGreen(v1->Color)<<8; - leftB = rightB = video::getBlue(v1->Color)<<8; - leftTx = rightTx = v1->TCoords.X; - leftTy = rightTy = v1->TCoords.Y; - - targetSurface = lockedSurface + span * SurfaceWidth; - zTarget = lockedZBuffer + span * SurfaceWidth; - - if (longest < 0.0f) - { - tmpDiv = 1.0f / (f32)(v2->Pos.Y - v1->Pos.Y); - rightdeltaxf = (v2->Pos.X - v1->Pos.X) * tmpDiv; - rightZStep = (s32)((v2->ZValue - v1->ZValue) * tmpDiv); - rightStepR = (s32)(((s32)(video::getRed(v2->Color)<<8) - rightR) * tmpDiv); - rightStepG = (s32)(((s32)(video::getGreen(v2->Color)<<8) - rightG) * tmpDiv); - rightStepB = (s32)(((s32)(video::getBlue(v2->Color)<<8) - rightB) * tmpDiv); - rightTxStep = (s32)((v2->TCoords.X - rightTx) * tmpDiv); - rightTyStep = (s32)((v2->TCoords.Y - rightTy) * tmpDiv); - - tmpDiv = 1.0f / (f32)height; - leftdeltaxf = (v3->Pos.X - v1->Pos.X) * tmpDiv; - leftZStep = (s32)((v3->ZValue - v1->ZValue) * tmpDiv); - leftStepR = (s32)(((s32)(video::getRed(v3->Color)<<8) - leftR) * tmpDiv); - leftStepG = (s32)(((s32)(video::getGreen(v3->Color)<<8) - leftG) * tmpDiv); - leftStepB = (s32)(((s32)(video::getBlue(v3->Color)<<8) - leftB) * tmpDiv); - leftTxStep = (s32)((v3->TCoords.X - leftTx) * tmpDiv); - leftTyStep = (s32)((v3->TCoords.Y - leftTy) * tmpDiv); - } - else - { - tmpDiv = 1.0f / (f32)height; - rightdeltaxf = (v3->Pos.X - v1->Pos.X) * tmpDiv; - rightZStep = (s32)((v3->ZValue - v1->ZValue) * tmpDiv); - rightStepR = (s32)(((s32)(video::getRed(v3->Color)<<8) - rightR) * tmpDiv); - rightStepG = (s32)(((s32)(video::getGreen(v3->Color)<<8) - rightG) * tmpDiv); - rightStepB = (s32)(((s32)(video::getBlue(v3->Color)<<8) - rightB) * tmpDiv); - rightTxStep = (s32)((v3->TCoords.X - rightTx) * tmpDiv); - rightTyStep = (s32)((v3->TCoords.Y - rightTy) * tmpDiv); - - tmpDiv = 1.0f / (f32)(v2->Pos.Y - v1->Pos.Y); - leftdeltaxf = (v2->Pos.X - v1->Pos.X) * tmpDiv; - leftZStep = (s32)((v2->ZValue - v1->ZValue) * tmpDiv); - leftStepR = (s32)(((s32)(video::getRed(v2->Color)<<8) - leftR) * tmpDiv); - leftStepG = (s32)(((s32)(video::getGreen(v2->Color)<<8) - leftG) * tmpDiv); - leftStepB = (s32)(((s32)(video::getBlue(v2->Color)<<8) - leftB) * tmpDiv); - leftTxStep = (s32)((v2->TCoords.X - leftTx) * tmpDiv); - leftTyStep = (s32)((v2->TCoords.Y - leftTy) * tmpDiv); - } - - - // do it twice, once for the first half of the triangle, - // end then for the second half. - - for (s32 triangleHalf=0; triangleHalf<2; ++triangleHalf) - { - if (spanEnd > ViewPortRect.LowerRightCorner.Y) - spanEnd = ViewPortRect.LowerRightCorner.Y; - - // if the span <0, than we can skip these spans, - // and proceed to the next spans which are really on the screen. - if (span < ViewPortRect.UpperLeftCorner.Y) - { - // we'll use leftx as temp variable - if (spanEnd < ViewPortRect.UpperLeftCorner.Y) - { - leftx = spanEnd - span; - span = spanEnd; - } - else - { - leftx = ViewPortRect.UpperLeftCorner.Y - span; - span = ViewPortRect.UpperLeftCorner.Y; - } - - leftxf += leftdeltaxf*leftx; - rightxf += rightdeltaxf*leftx; - targetSurface += SurfaceWidth*leftx; - zTarget += SurfaceWidth*leftx; - leftZValue += leftZStep*leftx; - rightZValue += rightZStep*leftx; - - leftR += leftStepR*leftx; - leftG += leftStepG*leftx; - leftB += leftStepB*leftx; - rightR += rightStepR*leftx; - rightG += rightStepG*leftx; - rightB += rightStepB*leftx; - - leftTx += leftTxStep*leftx; - leftTy += leftTyStep*leftx; - rightTx += rightTxStep*leftx; - rightTy += rightTyStep*leftx; - } - - - // the main loop. Go through every span and draw it. - - while (span < spanEnd) - { - leftx = (s32)(leftxf); - rightx = (s32)(rightxf + 0.5f); - - // perform some clipping - // thanks to a correction by hybrid - // calculations delayed to correctly propagate to textures etc. - s32 tDiffLeft=0, tDiffRight=0; - if (leftxViewPortRect.LowerRightCorner.X) - tDiffLeft=ViewPortRect.LowerRightCorner.X-leftx; - - if (rightxViewPortRect.LowerRightCorner.X) - tDiffRight=ViewPortRect.LowerRightCorner.X-rightx; - - // draw the span - if (rightx + tDiffRight - leftx - tDiffLeft) - { - tmpDiv = 1.0f / (f32)(rightx - leftx); - spanZStep = (s32)((rightZValue - leftZValue) * tmpDiv); - spanZValue = leftZValue+tDiffLeft*spanZStep; - - spanStepR = (s32)((rightR - leftR) * tmpDiv); - spanR = leftR+tDiffLeft*spanStepR; - spanStepG = (s32)((rightG - leftG) * tmpDiv); - spanG = leftG+tDiffLeft*spanStepG; - spanStepB = (s32)((rightB - leftB) * tmpDiv); - spanB = leftB+tDiffLeft*spanStepB; - - spanTxStep = (s32)((rightTx - leftTx) * tmpDiv); - spanTx = leftTx + tDiffLeft*spanTxStep; - spanTyStep = (s32)((rightTy - leftTy) * tmpDiv); - spanTy = leftTy+tDiffLeft*spanTyStep; - - hSpanBegin = targetSurface + leftx+tDiffLeft; - spanZTarget = zTarget + leftx+tDiffLeft; - hSpanEnd = targetSurface + rightx+tDiffRight; - - while (hSpanBegin < hSpanEnd) - { - if (spanZValue > *spanZTarget) - { - *spanZTarget = spanZValue; - u16 color = lockedTexture[((spanTy>>8)&textureYMask) * lockedTextureWidth + ((spanTx>>8)&textureXMask)]; - *hSpanBegin = video::RGB16(video::getRed(color) * (spanR>>8) >>2, - video::getGreen(color) * (spanG>>8) >>2, - video::getBlue(color) * (spanB>>8) >>2); - } - - spanR += spanStepR; - spanG += spanStepG; - spanB += spanStepB; - - spanTx += spanTxStep; - spanTy += spanTyStep; - - spanZValue += spanZStep; - ++hSpanBegin; - ++spanZTarget; - } - } - - leftxf += leftdeltaxf; - rightxf += rightdeltaxf; - ++span; - targetSurface += SurfaceWidth; - zTarget += SurfaceWidth; - leftZValue += leftZStep; - rightZValue += rightZStep; - - leftR += leftStepR; - leftG += leftStepG; - leftB += leftStepB; - rightR += rightStepR; - rightG += rightStepG; - rightB += rightStepB; - - leftTx += leftTxStep; - leftTy += leftTyStep; - rightTx += rightTxStep; - rightTy += rightTyStep; - } - - if (triangleHalf>0) // break, we've gout only two halves - break; - - - // setup variables for second half of the triangle. - - if (longest < 0.0f) - { - tmpDiv = 1.0f / (v3->Pos.Y - v2->Pos.Y); - - rightdeltaxf = (v3->Pos.X - v2->Pos.X) * tmpDiv; - rightxf = (f32)v2->Pos.X; - - rightZValue = v2->ZValue; - rightZStep = (s32)((v3->ZValue - v2->ZValue) * tmpDiv); - - rightR = video::getRed(v2->Color)<<8; - rightG = video::getGreen(v2->Color)<<8; - rightB = video::getBlue(v2->Color)<<8; - rightStepR = (s32)(((s32)(video::getRed(v3->Color)<<8) - rightR) * tmpDiv); - rightStepG = (s32)(((s32)(video::getGreen(v3->Color)<<8) - rightG) * tmpDiv); - rightStepB = (s32)(((s32)(video::getBlue(v3->Color)<<8) - rightB) * tmpDiv); - - rightTx = v2->TCoords.X; - rightTy = v2->TCoords.Y; - rightTxStep = (s32)((v3->TCoords.X - rightTx) * tmpDiv); - rightTyStep = (s32)((v3->TCoords.Y - rightTy) * tmpDiv); - } - else - { - tmpDiv = 1.0f / (v3->Pos.Y - v2->Pos.Y); - - leftdeltaxf = (v3->Pos.X - v2->Pos.X) * tmpDiv; - leftxf = (f32)v2->Pos.X; - - leftZValue = v2->ZValue; - leftZStep = (s32)((v3->ZValue - v2->ZValue) * tmpDiv); - - leftR = video::getRed(v2->Color)<<8; - leftG = video::getGreen(v2->Color)<<8; - leftB = video::getBlue(v2->Color)<<8; - leftStepR = (s32)(((s32)(video::getRed(v3->Color)<<8) - leftR) * tmpDiv); - leftStepG = (s32)(((s32)(video::getGreen(v3->Color)<<8) - leftG) * tmpDiv); - leftStepB = (s32)(((s32)(video::getBlue(v3->Color)<<8) - leftB) * tmpDiv); - - leftTx = v2->TCoords.X; - leftTy = v2->TCoords.Y; - leftTxStep = (s32)((v3->TCoords.X - leftTx) * tmpDiv); - leftTyStep = (s32)((v3->TCoords.Y - leftTy) * tmpDiv); - } - - - spanEnd = v3->Pos.Y; - } - - } - - RenderTarget->unlock(); - ZBuffer->unlock(); - Texture->unlock(); -} - - -} // end namespace video -} // end namespace irr - -#endif // _IRR_COMPILE_WITH_SOFTWARE_ - -namespace irr -{ -namespace video -{ - -//! creates a flat triangle renderer -ITriangleRenderer* createTriangleRendererTextureGouraud(IZBuffer* zbuffer) -{ - #ifdef _IRR_COMPILE_WITH_SOFTWARE_ - return new CTRTextureGouraud(zbuffer); - #else - return 0; - #endif // _IRR_COMPILE_WITH_SOFTWARE_ -} - - -} // end namespace video -} // end namespace irr - - -- cgit v1.1