From 959831f4ef5a3e797f576c3de08cd65032c997ad Mon Sep 17 00:00:00 2001 From: David Walter Seikel Date: Sun, 13 Jan 2013 18:54:10 +1000 Subject: Remove damned ancient DOS line endings from Irrlicht. Hopefully I did not go overboard. --- .../source/Irrlicht/CTRTextureGouraud2.cpp | 1348 ++++++++++---------- 1 file changed, 674 insertions(+), 674 deletions(-) (limited to 'libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp') diff --git a/libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp b/libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp index b4e8178..d493e10 100644 --- a/libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp +++ b/libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp @@ -1,674 +1,674 @@ -// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten -// This file is part of the "Irrlicht Engine". -// For conditions of distribution and use, see copyright notice in irrlicht.h - -#include "IrrCompileConfig.h" -#include "IBurningShader.h" - -#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ - -// compile flag for this file -#undef USE_ZBUFFER -#undef IPOL_Z -#undef CMP_Z -#undef WRITE_Z - -#undef IPOL_W -#undef CMP_W -#undef WRITE_W - -#undef SUBTEXEL -#undef INVERSE_W - -#undef IPOL_C0 -#undef IPOL_T0 -#undef IPOL_T1 - -// define render case -#define SUBTEXEL -#define INVERSE_W - -#define USE_ZBUFFER -#define IPOL_W -#define CMP_W -#define WRITE_W - -#define IPOL_C0 -#define IPOL_T0 -//#define IPOL_T1 - -// apply global override -#ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT - #undef INVERSE_W -#endif - -#ifndef SOFTWARE_DRIVER_2_SUBTEXEL - #undef SUBTEXEL -#endif - -#ifndef SOFTWARE_DRIVER_2_USE_VERTEX_COLOR - #undef IPOL_C0 -#endif - -#if !defined ( SOFTWARE_DRIVER_2_USE_WBUFFER ) && defined ( USE_ZBUFFER ) - #ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT - #undef IPOL_W - #endif - #define IPOL_Z - - #ifdef CMP_W - #undef CMP_W - #define CMP_Z - #endif - - #ifdef WRITE_W - #undef WRITE_W - #define WRITE_Z - #endif - -#endif - - -namespace irr -{ - -namespace video -{ - -class CTRTextureGouraud2 : public IBurningShader -{ -public: - - //! constructor - CTRTextureGouraud2(CBurningVideoDriver* driver); - - //! draws an indexed triangle list - virtual void drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ); - - -private: - void scanline_bilinear (); - sScanConvertData scan; - sScanLineData line; - -}; - -//! constructor -CTRTextureGouraud2::CTRTextureGouraud2(CBurningVideoDriver* driver) -: IBurningShader(driver) -{ - #ifdef _DEBUG - setDebugName("CTRTextureGouraud2"); - #endif -} - - - -/*! -*/ -void CTRTextureGouraud2::scanline_bilinear () -{ - tVideoSample *dst; - -#ifdef USE_ZBUFFER - fp24 *z; -#endif - - s32 xStart; - s32 xEnd; - s32 dx; - - -#ifdef SUBTEXEL - f32 subPixel; -#endif - -#ifdef IPOL_Z - f32 slopeZ; -#endif -#ifdef IPOL_W - fp24 slopeW; -#endif -#ifdef IPOL_C0 - sVec4 slopeC; -#endif -#ifdef IPOL_T0 - sVec2 slopeT[BURNING_MATERIAL_MAX_TEXTURES]; -#endif - - // apply top-left fill-convention, left - xStart = core::ceil32( line.x[0] ); - xEnd = core::ceil32( line.x[1] ) - 1; - - dx = xEnd - xStart; - - if ( dx < 0 ) - return; - - // slopes - const f32 invDeltaX = core::reciprocal_approxim ( line.x[1] - line.x[0] ); - -#ifdef IPOL_Z - slopeZ = (line.z[1] - line.z[0]) * invDeltaX; -#endif -#ifdef IPOL_W - slopeW = (line.w[1] - line.w[0]) * invDeltaX; -#endif -#ifdef IPOL_C0 - slopeC = (line.c[0][1] - line.c[0][0]) * invDeltaX; -#endif -#ifdef IPOL_T0 - slopeT[0] = (line.t[0][1] - line.t[0][0]) * invDeltaX; -#endif -#ifdef IPOL_T1 - slopeT[1] = (line.t[1][1] - line.t[1][0]) * invDeltaX; -#endif - -#ifdef SUBTEXEL - subPixel = ( (f32) xStart ) - line.x[0]; -#ifdef IPOL_Z - line.z[0] += slopeZ * subPixel; -#endif -#ifdef IPOL_W - line.w[0] += slopeW * subPixel; -#endif -#ifdef IPOL_C0 - line.c[0][0] += slopeC * subPixel; -#endif -#ifdef IPOL_T0 - line.t[0][0] += slopeT[0] * subPixel; -#endif -#ifdef IPOL_T1 - line.t[1][0] += slopeT[1] * subPixel; -#endif -#endif - - dst = (tVideoSample*)RenderTarget->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; - -#ifdef USE_ZBUFFER - z = (fp24*) DepthBuffer->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; -#endif - - -#ifdef INVERSE_W - f32 inversew; -#endif - - tFixPoint tx0; - tFixPoint ty0; - - tFixPoint r0, g0, b0; - -#ifdef IPOL_C0 - tFixPoint r1, g1, b1; -#endif - -#ifdef BURNINGVIDEO_RENDERER_FAST - u32 dIndex = ( line.y & 3 ) << 2; -#endif - - for ( s32 i = 0; i <= dx; ++i ) - { -#ifdef CMP_Z - if ( line.z[0] < z[i] ) -#endif -#ifdef CMP_W - if ( line.w[0] >= z[i] ) -#endif - { -#ifdef WRITE_Z - z[i] = line.z[0]; -#endif -#ifdef WRITE_W - z[i] = line.w[0]; -#endif - - -#ifdef INVERSE_W - inversew = fix_inverse32 ( line.w[0] ); - tx0 = tofix ( line.t[0][0].x, inversew); - ty0 = tofix ( line.t[0][0].y, inversew); - -#ifdef IPOL_C0 - r1 = tofix ( line.c[0][0].y ,inversew ); - g1 = tofix ( line.c[0][0].z ,inversew ); - b1 = tofix ( line.c[0][0].w ,inversew ); -#endif - -#else - tx0 = tofix ( line.t[0][0].x ); - ty0 = tofix ( line.t[0][0].y ); -#ifdef IPOL_C0 - getTexel_plain2 ( r1, g1, b1, line.c[0][0] ); -#endif -#endif - -#ifdef IPOL_C0 - getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); - - dst[i] = fix_to_color ( imulFix ( r0, r1 ), - imulFix ( g0, g1 ), - imulFix ( b0, b1 ) - ); -#else - -#ifdef BURNINGVIDEO_RENDERER_FAST - const tFixPointu d = dithermask [ dIndex | ( i ) & 3 ]; - dst[i] = getTexel_plain ( &IT[0], d + tx0, d + ty0 ); -#else - getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); - dst[i] = fix_to_color ( r0, g0, b0 ); -#endif - -#endif - - } - -#ifdef IPOL_Z - line.z[0] += slopeZ; -#endif -#ifdef IPOL_W - line.w[0] += slopeW; -#endif -#ifdef IPOL_C0 - line.c[0][0] += slopeC; -#endif -#ifdef IPOL_T0 - line.t[0][0] += slopeT[0]; -#endif -#ifdef IPOL_T1 - line.t[1][0] += slopeT[1]; -#endif - } - -} - -void CTRTextureGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ) -{ - // sort on height, y - if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); - if ( F32_A_GREATER_B ( b->Pos.y , c->Pos.y ) ) swapVertexPointer(&b, &c); - if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); - - const f32 ca = c->Pos.y - a->Pos.y; - const f32 ba = b->Pos.y - a->Pos.y; - const f32 cb = c->Pos.y - b->Pos.y; - // calculate delta y of the edges - scan.invDeltaY[0] = core::reciprocal( ca ); - scan.invDeltaY[1] = core::reciprocal( ba ); - scan.invDeltaY[2] = core::reciprocal( cb ); - - if ( F32_LOWER_EQUAL_0 ( scan.invDeltaY[0] ) ) - return; - - // find if the major edge is left or right aligned - f32 temp[4]; - - temp[0] = a->Pos.x - c->Pos.x; - temp[1] = -ca; - temp[2] = b->Pos.x - a->Pos.x; - temp[3] = ba; - - scan.left = ( temp[0] * temp[3] - temp[1] * temp[2] ) > 0.f ? 0 : 1; - scan.right = 1 - scan.left; - - // calculate slopes for the major edge - scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0]; - scan.x[0] = a->Pos.x; - -#ifdef IPOL_Z - scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0]; - scan.z[0] = a->Pos.z; -#endif - -#ifdef IPOL_W - scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0]; - scan.w[0] = a->Pos.w; -#endif - -#ifdef IPOL_C0 - scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0]; - scan.c[0][0] = a->Color[0]; -#endif - -#ifdef IPOL_T0 - scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0]; - scan.t[0][0] = a->Tex[0]; -#endif - -#ifdef IPOL_T1 - scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0]; - scan.t[1][0] = a->Tex[1]; -#endif - - // top left fill convention y run - s32 yStart; - s32 yEnd; - -#ifdef SUBTEXEL - f32 subPixel; -#endif - - // rasterize upper sub-triangle - if ( (f32) 0.0 != scan.invDeltaY[1] ) - { - // calculate slopes for top edge - scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1]; - scan.x[1] = a->Pos.x; - -#ifdef IPOL_Z - scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1]; - scan.z[1] = a->Pos.z; -#endif - -#ifdef IPOL_W - scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1]; - scan.w[1] = a->Pos.w; -#endif - -#ifdef IPOL_C0 - scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1]; - scan.c[0][1] = a->Color[0]; -#endif - -#ifdef IPOL_T0 - scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1]; - scan.t[0][1] = a->Tex[0]; -#endif - -#ifdef IPOL_T1 - scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1]; - scan.t[1][1] = a->Tex[1]; -#endif - - // apply top-left fill convention, top part - yStart = core::ceil32( a->Pos.y ); - yEnd = core::ceil32( b->Pos.y ) - 1; - -#ifdef SUBTEXEL - subPixel = ( (f32) yStart ) - a->Pos.y; - - // correct to pixel center - scan.x[0] += scan.slopeX[0] * subPixel; - scan.x[1] += scan.slopeX[1] * subPixel; - -#ifdef IPOL_Z - scan.z[0] += scan.slopeZ[0] * subPixel; - scan.z[1] += scan.slopeZ[1] * subPixel; -#endif - -#ifdef IPOL_W - scan.w[0] += scan.slopeW[0] * subPixel; - scan.w[1] += scan.slopeW[1] * subPixel; -#endif - -#ifdef IPOL_C0 - scan.c[0][0] += scan.slopeC[0][0] * subPixel; - scan.c[0][1] += scan.slopeC[0][1] * subPixel; -#endif - -#ifdef IPOL_T0 - scan.t[0][0] += scan.slopeT[0][0] * subPixel; - scan.t[0][1] += scan.slopeT[0][1] * subPixel; -#endif - -#ifdef IPOL_T1 - scan.t[1][0] += scan.slopeT[1][0] * subPixel; - scan.t[1][1] += scan.slopeT[1][1] * subPixel; -#endif - -#endif - - // rasterize the edge scanlines - for( line.y = yStart; line.y <= yEnd; ++line.y) - { - line.x[scan.left] = scan.x[0]; - line.x[scan.right] = scan.x[1]; - -#ifdef IPOL_Z - line.z[scan.left] = scan.z[0]; - line.z[scan.right] = scan.z[1]; -#endif - -#ifdef IPOL_W - line.w[scan.left] = scan.w[0]; - line.w[scan.right] = scan.w[1]; -#endif - -#ifdef IPOL_C0 - line.c[0][scan.left] = scan.c[0][0]; - line.c[0][scan.right] = scan.c[0][1]; -#endif - -#ifdef IPOL_T0 - line.t[0][scan.left] = scan.t[0][0]; - line.t[0][scan.right] = scan.t[0][1]; -#endif - -#ifdef IPOL_T1 - line.t[1][scan.left] = scan.t[1][0]; - line.t[1][scan.right] = scan.t[1][1]; -#endif - - // render a scanline - scanline_bilinear (); - - scan.x[0] += scan.slopeX[0]; - scan.x[1] += scan.slopeX[1]; - -#ifdef IPOL_Z - scan.z[0] += scan.slopeZ[0]; - scan.z[1] += scan.slopeZ[1]; -#endif - -#ifdef IPOL_W - scan.w[0] += scan.slopeW[0]; - scan.w[1] += scan.slopeW[1]; -#endif - -#ifdef IPOL_C0 - scan.c[0][0] += scan.slopeC[0][0]; - scan.c[0][1] += scan.slopeC[0][1]; -#endif - -#ifdef IPOL_T0 - scan.t[0][0] += scan.slopeT[0][0]; - scan.t[0][1] += scan.slopeT[0][1]; -#endif - -#ifdef IPOL_T1 - scan.t[1][0] += scan.slopeT[1][0]; - scan.t[1][1] += scan.slopeT[1][1]; -#endif - - } - } - - // rasterize lower sub-triangle - if ( (f32) 0.0 != scan.invDeltaY[2] ) - { - // advance to middle point - if( (f32) 0.0 != scan.invDeltaY[1] ) - { - temp[0] = b->Pos.y - a->Pos.y; // dy - - scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0]; -#ifdef IPOL_Z - scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0]; -#endif -#ifdef IPOL_W - scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0]; -#endif -#ifdef IPOL_C0 - scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0]; -#endif -#ifdef IPOL_T0 - scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0]; -#endif -#ifdef IPOL_T1 - scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0]; -#endif - - } - - // calculate slopes for bottom edge - scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2]; - scan.x[1] = b->Pos.x; - -#ifdef IPOL_Z - scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2]; - scan.z[1] = b->Pos.z; -#endif - -#ifdef IPOL_W - scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2]; - scan.w[1] = b->Pos.w; -#endif - -#ifdef IPOL_C0 - scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2]; - scan.c[0][1] = b->Color[0]; -#endif - -#ifdef IPOL_T0 - scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2]; - scan.t[0][1] = b->Tex[0]; -#endif - -#ifdef IPOL_T1 - scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2]; - scan.t[1][1] = b->Tex[1]; -#endif - - // apply top-left fill convention, top part - yStart = core::ceil32( b->Pos.y ); - yEnd = core::ceil32( c->Pos.y ) - 1; - -#ifdef SUBTEXEL - - subPixel = ( (f32) yStart ) - b->Pos.y; - - // correct to pixel center - scan.x[0] += scan.slopeX[0] * subPixel; - scan.x[1] += scan.slopeX[1] * subPixel; - -#ifdef IPOL_Z - scan.z[0] += scan.slopeZ[0] * subPixel; - scan.z[1] += scan.slopeZ[1] * subPixel; -#endif - -#ifdef IPOL_W - scan.w[0] += scan.slopeW[0] * subPixel; - scan.w[1] += scan.slopeW[1] * subPixel; -#endif - -#ifdef IPOL_C0 - scan.c[0][0] += scan.slopeC[0][0] * subPixel; - scan.c[0][1] += scan.slopeC[0][1] * subPixel; -#endif - -#ifdef IPOL_T0 - scan.t[0][0] += scan.slopeT[0][0] * subPixel; - scan.t[0][1] += scan.slopeT[0][1] * subPixel; -#endif - -#ifdef IPOL_T1 - scan.t[1][0] += scan.slopeT[1][0] * subPixel; - scan.t[1][1] += scan.slopeT[1][1] * subPixel; -#endif - -#endif - - // rasterize the edge scanlines - for( line.y = yStart; line.y <= yEnd; ++line.y) - { - line.x[scan.left] = scan.x[0]; - line.x[scan.right] = scan.x[1]; - -#ifdef IPOL_Z - line.z[scan.left] = scan.z[0]; - line.z[scan.right] = scan.z[1]; -#endif - -#ifdef IPOL_W - line.w[scan.left] = scan.w[0]; - line.w[scan.right] = scan.w[1]; -#endif - -#ifdef IPOL_C0 - line.c[0][scan.left] = scan.c[0][0]; - line.c[0][scan.right] = scan.c[0][1]; -#endif - -#ifdef IPOL_T0 - line.t[0][scan.left] = scan.t[0][0]; - line.t[0][scan.right] = scan.t[0][1]; -#endif - -#ifdef IPOL_T1 - line.t[1][scan.left] = scan.t[1][0]; - line.t[1][scan.right] = scan.t[1][1]; -#endif - - // render a scanline - scanline_bilinear ( ); - - scan.x[0] += scan.slopeX[0]; - scan.x[1] += scan.slopeX[1]; - -#ifdef IPOL_Z - scan.z[0] += scan.slopeZ[0]; - scan.z[1] += scan.slopeZ[1]; -#endif - -#ifdef IPOL_W - scan.w[0] += scan.slopeW[0]; - scan.w[1] += scan.slopeW[1]; -#endif - -#ifdef IPOL_C0 - scan.c[0][0] += scan.slopeC[0][0]; - scan.c[0][1] += scan.slopeC[0][1]; -#endif - -#ifdef IPOL_T0 - scan.t[0][0] += scan.slopeT[0][0]; - scan.t[0][1] += scan.slopeT[0][1]; -#endif - -#ifdef IPOL_T1 - scan.t[1][0] += scan.slopeT[1][0]; - scan.t[1][1] += scan.slopeT[1][1]; -#endif - - } - } - -} - -} // end namespace video -} // end namespace irr - -#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ - -namespace irr -{ -namespace video -{ - -//! creates a flat triangle renderer -IBurningShader* createTriangleRendererTextureGouraud2(CBurningVideoDriver* driver) -{ - #ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ - return new CTRTextureGouraud2(driver); - #else - return 0; - #endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ -} - - -} // end namespace video -} // end namespace irr - - - +// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten +// This file is part of the "Irrlicht Engine". +// For conditions of distribution and use, see copyright notice in irrlicht.h + +#include "IrrCompileConfig.h" +#include "IBurningShader.h" + +#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ + +// compile flag for this file +#undef USE_ZBUFFER +#undef IPOL_Z +#undef CMP_Z +#undef WRITE_Z + +#undef IPOL_W +#undef CMP_W +#undef WRITE_W + +#undef SUBTEXEL +#undef INVERSE_W + +#undef IPOL_C0 +#undef IPOL_T0 +#undef IPOL_T1 + +// define render case +#define SUBTEXEL +#define INVERSE_W + +#define USE_ZBUFFER +#define IPOL_W +#define CMP_W +#define WRITE_W + +#define IPOL_C0 +#define IPOL_T0 +//#define IPOL_T1 + +// apply global override +#ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT + #undef INVERSE_W +#endif + +#ifndef SOFTWARE_DRIVER_2_SUBTEXEL + #undef SUBTEXEL +#endif + +#ifndef SOFTWARE_DRIVER_2_USE_VERTEX_COLOR + #undef IPOL_C0 +#endif + +#if !defined ( SOFTWARE_DRIVER_2_USE_WBUFFER ) && defined ( USE_ZBUFFER ) + #ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT + #undef IPOL_W + #endif + #define IPOL_Z + + #ifdef CMP_W + #undef CMP_W + #define CMP_Z + #endif + + #ifdef WRITE_W + #undef WRITE_W + #define WRITE_Z + #endif + +#endif + + +namespace irr +{ + +namespace video +{ + +class CTRTextureGouraud2 : public IBurningShader +{ +public: + + //! constructor + CTRTextureGouraud2(CBurningVideoDriver* driver); + + //! draws an indexed triangle list + virtual void drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ); + + +private: + void scanline_bilinear (); + sScanConvertData scan; + sScanLineData line; + +}; + +//! constructor +CTRTextureGouraud2::CTRTextureGouraud2(CBurningVideoDriver* driver) +: IBurningShader(driver) +{ + #ifdef _DEBUG + setDebugName("CTRTextureGouraud2"); + #endif +} + + + +/*! +*/ +void CTRTextureGouraud2::scanline_bilinear () +{ + tVideoSample *dst; + +#ifdef USE_ZBUFFER + fp24 *z; +#endif + + s32 xStart; + s32 xEnd; + s32 dx; + + +#ifdef SUBTEXEL + f32 subPixel; +#endif + +#ifdef IPOL_Z + f32 slopeZ; +#endif +#ifdef IPOL_W + fp24 slopeW; +#endif +#ifdef IPOL_C0 + sVec4 slopeC; +#endif +#ifdef IPOL_T0 + sVec2 slopeT[BURNING_MATERIAL_MAX_TEXTURES]; +#endif + + // apply top-left fill-convention, left + xStart = core::ceil32( line.x[0] ); + xEnd = core::ceil32( line.x[1] ) - 1; + + dx = xEnd - xStart; + + if ( dx < 0 ) + return; + + // slopes + const f32 invDeltaX = core::reciprocal_approxim ( line.x[1] - line.x[0] ); + +#ifdef IPOL_Z + slopeZ = (line.z[1] - line.z[0]) * invDeltaX; +#endif +#ifdef IPOL_W + slopeW = (line.w[1] - line.w[0]) * invDeltaX; +#endif +#ifdef IPOL_C0 + slopeC = (line.c[0][1] - line.c[0][0]) * invDeltaX; +#endif +#ifdef IPOL_T0 + slopeT[0] = (line.t[0][1] - line.t[0][0]) * invDeltaX; +#endif +#ifdef IPOL_T1 + slopeT[1] = (line.t[1][1] - line.t[1][0]) * invDeltaX; +#endif + +#ifdef SUBTEXEL + subPixel = ( (f32) xStart ) - line.x[0]; +#ifdef IPOL_Z + line.z[0] += slopeZ * subPixel; +#endif +#ifdef IPOL_W + line.w[0] += slopeW * subPixel; +#endif +#ifdef IPOL_C0 + line.c[0][0] += slopeC * subPixel; +#endif +#ifdef IPOL_T0 + line.t[0][0] += slopeT[0] * subPixel; +#endif +#ifdef IPOL_T1 + line.t[1][0] += slopeT[1] * subPixel; +#endif +#endif + + dst = (tVideoSample*)RenderTarget->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; + +#ifdef USE_ZBUFFER + z = (fp24*) DepthBuffer->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; +#endif + + +#ifdef INVERSE_W + f32 inversew; +#endif + + tFixPoint tx0; + tFixPoint ty0; + + tFixPoint r0, g0, b0; + +#ifdef IPOL_C0 + tFixPoint r1, g1, b1; +#endif + +#ifdef BURNINGVIDEO_RENDERER_FAST + u32 dIndex = ( line.y & 3 ) << 2; +#endif + + for ( s32 i = 0; i <= dx; ++i ) + { +#ifdef CMP_Z + if ( line.z[0] < z[i] ) +#endif +#ifdef CMP_W + if ( line.w[0] >= z[i] ) +#endif + { +#ifdef WRITE_Z + z[i] = line.z[0]; +#endif +#ifdef WRITE_W + z[i] = line.w[0]; +#endif + + +#ifdef INVERSE_W + inversew = fix_inverse32 ( line.w[0] ); + tx0 = tofix ( line.t[0][0].x, inversew); + ty0 = tofix ( line.t[0][0].y, inversew); + +#ifdef IPOL_C0 + r1 = tofix ( line.c[0][0].y ,inversew ); + g1 = tofix ( line.c[0][0].z ,inversew ); + b1 = tofix ( line.c[0][0].w ,inversew ); +#endif + +#else + tx0 = tofix ( line.t[0][0].x ); + ty0 = tofix ( line.t[0][0].y ); +#ifdef IPOL_C0 + getTexel_plain2 ( r1, g1, b1, line.c[0][0] ); +#endif +#endif + +#ifdef IPOL_C0 + getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); + + dst[i] = fix_to_color ( imulFix ( r0, r1 ), + imulFix ( g0, g1 ), + imulFix ( b0, b1 ) + ); +#else + +#ifdef BURNINGVIDEO_RENDERER_FAST + const tFixPointu d = dithermask [ dIndex | ( i ) & 3 ]; + dst[i] = getTexel_plain ( &IT[0], d + tx0, d + ty0 ); +#else + getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); + dst[i] = fix_to_color ( r0, g0, b0 ); +#endif + +#endif + + } + +#ifdef IPOL_Z + line.z[0] += slopeZ; +#endif +#ifdef IPOL_W + line.w[0] += slopeW; +#endif +#ifdef IPOL_C0 + line.c[0][0] += slopeC; +#endif +#ifdef IPOL_T0 + line.t[0][0] += slopeT[0]; +#endif +#ifdef IPOL_T1 + line.t[1][0] += slopeT[1]; +#endif + } + +} + +void CTRTextureGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ) +{ + // sort on height, y + if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); + if ( F32_A_GREATER_B ( b->Pos.y , c->Pos.y ) ) swapVertexPointer(&b, &c); + if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); + + const f32 ca = c->Pos.y - a->Pos.y; + const f32 ba = b->Pos.y - a->Pos.y; + const f32 cb = c->Pos.y - b->Pos.y; + // calculate delta y of the edges + scan.invDeltaY[0] = core::reciprocal( ca ); + scan.invDeltaY[1] = core::reciprocal( ba ); + scan.invDeltaY[2] = core::reciprocal( cb ); + + if ( F32_LOWER_EQUAL_0 ( scan.invDeltaY[0] ) ) + return; + + // find if the major edge is left or right aligned + f32 temp[4]; + + temp[0] = a->Pos.x - c->Pos.x; + temp[1] = -ca; + temp[2] = b->Pos.x - a->Pos.x; + temp[3] = ba; + + scan.left = ( temp[0] * temp[3] - temp[1] * temp[2] ) > 0.f ? 0 : 1; + scan.right = 1 - scan.left; + + // calculate slopes for the major edge + scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0]; + scan.x[0] = a->Pos.x; + +#ifdef IPOL_Z + scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0]; + scan.z[0] = a->Pos.z; +#endif + +#ifdef IPOL_W + scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0]; + scan.w[0] = a->Pos.w; +#endif + +#ifdef IPOL_C0 + scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0]; + scan.c[0][0] = a->Color[0]; +#endif + +#ifdef IPOL_T0 + scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0]; + scan.t[0][0] = a->Tex[0]; +#endif + +#ifdef IPOL_T1 + scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0]; + scan.t[1][0] = a->Tex[1]; +#endif + + // top left fill convention y run + s32 yStart; + s32 yEnd; + +#ifdef SUBTEXEL + f32 subPixel; +#endif + + // rasterize upper sub-triangle + if ( (f32) 0.0 != scan.invDeltaY[1] ) + { + // calculate slopes for top edge + scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1]; + scan.x[1] = a->Pos.x; + +#ifdef IPOL_Z + scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1]; + scan.z[1] = a->Pos.z; +#endif + +#ifdef IPOL_W + scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1]; + scan.w[1] = a->Pos.w; +#endif + +#ifdef IPOL_C0 + scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1]; + scan.c[0][1] = a->Color[0]; +#endif + +#ifdef IPOL_T0 + scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1]; + scan.t[0][1] = a->Tex[0]; +#endif + +#ifdef IPOL_T1 + scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1]; + scan.t[1][1] = a->Tex[1]; +#endif + + // apply top-left fill convention, top part + yStart = core::ceil32( a->Pos.y ); + yEnd = core::ceil32( b->Pos.y ) - 1; + +#ifdef SUBTEXEL + subPixel = ( (f32) yStart ) - a->Pos.y; + + // correct to pixel center + scan.x[0] += scan.slopeX[0] * subPixel; + scan.x[1] += scan.slopeX[1] * subPixel; + +#ifdef IPOL_Z + scan.z[0] += scan.slopeZ[0] * subPixel; + scan.z[1] += scan.slopeZ[1] * subPixel; +#endif + +#ifdef IPOL_W + scan.w[0] += scan.slopeW[0] * subPixel; + scan.w[1] += scan.slopeW[1] * subPixel; +#endif + +#ifdef IPOL_C0 + scan.c[0][0] += scan.slopeC[0][0] * subPixel; + scan.c[0][1] += scan.slopeC[0][1] * subPixel; +#endif + +#ifdef IPOL_T0 + scan.t[0][0] += scan.slopeT[0][0] * subPixel; + scan.t[0][1] += scan.slopeT[0][1] * subPixel; +#endif + +#ifdef IPOL_T1 + scan.t[1][0] += scan.slopeT[1][0] * subPixel; + scan.t[1][1] += scan.slopeT[1][1] * subPixel; +#endif + +#endif + + // rasterize the edge scanlines + for( line.y = yStart; line.y <= yEnd; ++line.y) + { + line.x[scan.left] = scan.x[0]; + line.x[scan.right] = scan.x[1]; + +#ifdef IPOL_Z + line.z[scan.left] = scan.z[0]; + line.z[scan.right] = scan.z[1]; +#endif + +#ifdef IPOL_W + line.w[scan.left] = scan.w[0]; + line.w[scan.right] = scan.w[1]; +#endif + +#ifdef IPOL_C0 + line.c[0][scan.left] = scan.c[0][0]; + line.c[0][scan.right] = scan.c[0][1]; +#endif + +#ifdef IPOL_T0 + line.t[0][scan.left] = scan.t[0][0]; + line.t[0][scan.right] = scan.t[0][1]; +#endif + +#ifdef IPOL_T1 + line.t[1][scan.left] = scan.t[1][0]; + line.t[1][scan.right] = scan.t[1][1]; +#endif + + // render a scanline + scanline_bilinear (); + + scan.x[0] += scan.slopeX[0]; + scan.x[1] += scan.slopeX[1]; + +#ifdef IPOL_Z + scan.z[0] += scan.slopeZ[0]; + scan.z[1] += scan.slopeZ[1]; +#endif + +#ifdef IPOL_W + scan.w[0] += scan.slopeW[0]; + scan.w[1] += scan.slopeW[1]; +#endif + +#ifdef IPOL_C0 + scan.c[0][0] += scan.slopeC[0][0]; + scan.c[0][1] += scan.slopeC[0][1]; +#endif + +#ifdef IPOL_T0 + scan.t[0][0] += scan.slopeT[0][0]; + scan.t[0][1] += scan.slopeT[0][1]; +#endif + +#ifdef IPOL_T1 + scan.t[1][0] += scan.slopeT[1][0]; + scan.t[1][1] += scan.slopeT[1][1]; +#endif + + } + } + + // rasterize lower sub-triangle + if ( (f32) 0.0 != scan.invDeltaY[2] ) + { + // advance to middle point + if( (f32) 0.0 != scan.invDeltaY[1] ) + { + temp[0] = b->Pos.y - a->Pos.y; // dy + + scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0]; +#ifdef IPOL_Z + scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0]; +#endif +#ifdef IPOL_W + scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0]; +#endif +#ifdef IPOL_C0 + scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0]; +#endif +#ifdef IPOL_T0 + scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0]; +#endif +#ifdef IPOL_T1 + scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0]; +#endif + + } + + // calculate slopes for bottom edge + scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2]; + scan.x[1] = b->Pos.x; + +#ifdef IPOL_Z + scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2]; + scan.z[1] = b->Pos.z; +#endif + +#ifdef IPOL_W + scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2]; + scan.w[1] = b->Pos.w; +#endif + +#ifdef IPOL_C0 + scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2]; + scan.c[0][1] = b->Color[0]; +#endif + +#ifdef IPOL_T0 + scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2]; + scan.t[0][1] = b->Tex[0]; +#endif + +#ifdef IPOL_T1 + scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2]; + scan.t[1][1] = b->Tex[1]; +#endif + + // apply top-left fill convention, top part + yStart = core::ceil32( b->Pos.y ); + yEnd = core::ceil32( c->Pos.y ) - 1; + +#ifdef SUBTEXEL + + subPixel = ( (f32) yStart ) - b->Pos.y; + + // correct to pixel center + scan.x[0] += scan.slopeX[0] * subPixel; + scan.x[1] += scan.slopeX[1] * subPixel; + +#ifdef IPOL_Z + scan.z[0] += scan.slopeZ[0] * subPixel; + scan.z[1] += scan.slopeZ[1] * subPixel; +#endif + +#ifdef IPOL_W + scan.w[0] += scan.slopeW[0] * subPixel; + scan.w[1] += scan.slopeW[1] * subPixel; +#endif + +#ifdef IPOL_C0 + scan.c[0][0] += scan.slopeC[0][0] * subPixel; + scan.c[0][1] += scan.slopeC[0][1] * subPixel; +#endif + +#ifdef IPOL_T0 + scan.t[0][0] += scan.slopeT[0][0] * subPixel; + scan.t[0][1] += scan.slopeT[0][1] * subPixel; +#endif + +#ifdef IPOL_T1 + scan.t[1][0] += scan.slopeT[1][0] * subPixel; + scan.t[1][1] += scan.slopeT[1][1] * subPixel; +#endif + +#endif + + // rasterize the edge scanlines + for( line.y = yStart; line.y <= yEnd; ++line.y) + { + line.x[scan.left] = scan.x[0]; + line.x[scan.right] = scan.x[1]; + +#ifdef IPOL_Z + line.z[scan.left] = scan.z[0]; + line.z[scan.right] = scan.z[1]; +#endif + +#ifdef IPOL_W + line.w[scan.left] = scan.w[0]; + line.w[scan.right] = scan.w[1]; +#endif + +#ifdef IPOL_C0 + line.c[0][scan.left] = scan.c[0][0]; + line.c[0][scan.right] = scan.c[0][1]; +#endif + +#ifdef IPOL_T0 + line.t[0][scan.left] = scan.t[0][0]; + line.t[0][scan.right] = scan.t[0][1]; +#endif + +#ifdef IPOL_T1 + line.t[1][scan.left] = scan.t[1][0]; + line.t[1][scan.right] = scan.t[1][1]; +#endif + + // render a scanline + scanline_bilinear ( ); + + scan.x[0] += scan.slopeX[0]; + scan.x[1] += scan.slopeX[1]; + +#ifdef IPOL_Z + scan.z[0] += scan.slopeZ[0]; + scan.z[1] += scan.slopeZ[1]; +#endif + +#ifdef IPOL_W + scan.w[0] += scan.slopeW[0]; + scan.w[1] += scan.slopeW[1]; +#endif + +#ifdef IPOL_C0 + scan.c[0][0] += scan.slopeC[0][0]; + scan.c[0][1] += scan.slopeC[0][1]; +#endif + +#ifdef IPOL_T0 + scan.t[0][0] += scan.slopeT[0][0]; + scan.t[0][1] += scan.slopeT[0][1]; +#endif + +#ifdef IPOL_T1 + scan.t[1][0] += scan.slopeT[1][0]; + scan.t[1][1] += scan.slopeT[1][1]; +#endif + + } + } + +} + +} // end namespace video +} // end namespace irr + +#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ + +namespace irr +{ +namespace video +{ + +//! creates a flat triangle renderer +IBurningShader* createTriangleRendererTextureGouraud2(CBurningVideoDriver* driver) +{ + #ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ + return new CTRTextureGouraud2(driver); + #else + return 0; + #endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ +} + + +} // end namespace video +} // end namespace irr + + + -- cgit v1.1