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-rw-r--r--libraries/irrlicht-1.8/source/Irrlicht/CTRTextureGouraud2.cpp1348
1 files changed, 674 insertions, 674 deletions
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 @@
1// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten 1// Copyright (C) 2002-2012 Nikolaus Gebhardt / Thomas Alten
2// This file is part of the "Irrlicht Engine". 2// This file is part of the "Irrlicht Engine".
3// For conditions of distribution and use, see copyright notice in irrlicht.h 3// For conditions of distribution and use, see copyright notice in irrlicht.h
4 4
5#include "IrrCompileConfig.h" 5#include "IrrCompileConfig.h"
6#include "IBurningShader.h" 6#include "IBurningShader.h"
7 7
8#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ 8#ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
9 9
10// compile flag for this file 10// compile flag for this file
11#undef USE_ZBUFFER 11#undef USE_ZBUFFER
12#undef IPOL_Z 12#undef IPOL_Z
13#undef CMP_Z 13#undef CMP_Z
14#undef WRITE_Z 14#undef WRITE_Z
15 15
16#undef IPOL_W 16#undef IPOL_W
17#undef CMP_W 17#undef CMP_W
18#undef WRITE_W 18#undef WRITE_W
19 19
20#undef SUBTEXEL 20#undef SUBTEXEL
21#undef INVERSE_W 21#undef INVERSE_W
22 22
23#undef IPOL_C0 23#undef IPOL_C0
24#undef IPOL_T0 24#undef IPOL_T0
25#undef IPOL_T1 25#undef IPOL_T1
26 26
27// define render case 27// define render case
28#define SUBTEXEL 28#define SUBTEXEL
29#define INVERSE_W 29#define INVERSE_W
30 30
31#define USE_ZBUFFER 31#define USE_ZBUFFER
32#define IPOL_W 32#define IPOL_W
33#define CMP_W 33#define CMP_W
34#define WRITE_W 34#define WRITE_W
35 35
36#define IPOL_C0 36#define IPOL_C0
37#define IPOL_T0 37#define IPOL_T0
38//#define IPOL_T1 38//#define IPOL_T1
39 39
40// apply global override 40// apply global override
41#ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT 41#ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT
42 #undef INVERSE_W 42 #undef INVERSE_W
43#endif 43#endif
44 44
45#ifndef SOFTWARE_DRIVER_2_SUBTEXEL 45#ifndef SOFTWARE_DRIVER_2_SUBTEXEL
46 #undef SUBTEXEL 46 #undef SUBTEXEL
47#endif 47#endif
48 48
49#ifndef SOFTWARE_DRIVER_2_USE_VERTEX_COLOR 49#ifndef SOFTWARE_DRIVER_2_USE_VERTEX_COLOR
50 #undef IPOL_C0 50 #undef IPOL_C0
51#endif 51#endif
52 52
53#if !defined ( SOFTWARE_DRIVER_2_USE_WBUFFER ) && defined ( USE_ZBUFFER ) 53#if !defined ( SOFTWARE_DRIVER_2_USE_WBUFFER ) && defined ( USE_ZBUFFER )
54 #ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT 54 #ifndef SOFTWARE_DRIVER_2_PERSPECTIVE_CORRECT
55 #undef IPOL_W 55 #undef IPOL_W
56 #endif 56 #endif
57 #define IPOL_Z 57 #define IPOL_Z
58 58
59 #ifdef CMP_W 59 #ifdef CMP_W
60 #undef CMP_W 60 #undef CMP_W
61 #define CMP_Z 61 #define CMP_Z
62 #endif 62 #endif
63 63
64 #ifdef WRITE_W 64 #ifdef WRITE_W
65 #undef WRITE_W 65 #undef WRITE_W
66 #define WRITE_Z 66 #define WRITE_Z
67 #endif 67 #endif
68 68
69#endif 69#endif
70 70
71 71
72namespace irr 72namespace irr
73{ 73{
74 74
75namespace video 75namespace video
76{ 76{
77 77
78class CTRTextureGouraud2 : public IBurningShader 78class CTRTextureGouraud2 : public IBurningShader
79{ 79{
80public: 80public:
81 81
82 //! constructor 82 //! constructor
83 CTRTextureGouraud2(CBurningVideoDriver* driver); 83 CTRTextureGouraud2(CBurningVideoDriver* driver);
84 84
85 //! draws an indexed triangle list 85 //! draws an indexed triangle list
86 virtual void drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ); 86 virtual void drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c );
87 87
88 88
89private: 89private:
90 void scanline_bilinear (); 90 void scanline_bilinear ();
91 sScanConvertData scan; 91 sScanConvertData scan;
92 sScanLineData line; 92 sScanLineData line;
93 93
94}; 94};
95 95
96//! constructor 96//! constructor
97CTRTextureGouraud2::CTRTextureGouraud2(CBurningVideoDriver* driver) 97CTRTextureGouraud2::CTRTextureGouraud2(CBurningVideoDriver* driver)
98: IBurningShader(driver) 98: IBurningShader(driver)
99{ 99{
100 #ifdef _DEBUG 100 #ifdef _DEBUG
101 setDebugName("CTRTextureGouraud2"); 101 setDebugName("CTRTextureGouraud2");
102 #endif 102 #endif
103} 103}
104 104
105 105
106 106
107/*! 107/*!
108*/ 108*/
109void CTRTextureGouraud2::scanline_bilinear () 109void CTRTextureGouraud2::scanline_bilinear ()
110{ 110{
111 tVideoSample *dst; 111 tVideoSample *dst;
112 112
113#ifdef USE_ZBUFFER 113#ifdef USE_ZBUFFER
114 fp24 *z; 114 fp24 *z;
115#endif 115#endif
116 116
117 s32 xStart; 117 s32 xStart;
118 s32 xEnd; 118 s32 xEnd;
119 s32 dx; 119 s32 dx;
120 120
121 121
122#ifdef SUBTEXEL 122#ifdef SUBTEXEL
123 f32 subPixel; 123 f32 subPixel;
124#endif 124#endif
125 125
126#ifdef IPOL_Z 126#ifdef IPOL_Z
127 f32 slopeZ; 127 f32 slopeZ;
128#endif 128#endif
129#ifdef IPOL_W 129#ifdef IPOL_W
130 fp24 slopeW; 130 fp24 slopeW;
131#endif 131#endif
132#ifdef IPOL_C0 132#ifdef IPOL_C0
133 sVec4 slopeC; 133 sVec4 slopeC;
134#endif 134#endif
135#ifdef IPOL_T0 135#ifdef IPOL_T0
136 sVec2 slopeT[BURNING_MATERIAL_MAX_TEXTURES]; 136 sVec2 slopeT[BURNING_MATERIAL_MAX_TEXTURES];
137#endif 137#endif
138 138
139 // apply top-left fill-convention, left 139 // apply top-left fill-convention, left
140 xStart = core::ceil32( line.x[0] ); 140 xStart = core::ceil32( line.x[0] );
141 xEnd = core::ceil32( line.x[1] ) - 1; 141 xEnd = core::ceil32( line.x[1] ) - 1;
142 142
143 dx = xEnd - xStart; 143 dx = xEnd - xStart;
144 144
145 if ( dx < 0 ) 145 if ( dx < 0 )
146 return; 146 return;
147 147
148 // slopes 148 // slopes
149 const f32 invDeltaX = core::reciprocal_approxim ( line.x[1] - line.x[0] ); 149 const f32 invDeltaX = core::reciprocal_approxim ( line.x[1] - line.x[0] );
150 150
151#ifdef IPOL_Z 151#ifdef IPOL_Z
152 slopeZ = (line.z[1] - line.z[0]) * invDeltaX; 152 slopeZ = (line.z[1] - line.z[0]) * invDeltaX;
153#endif 153#endif
154#ifdef IPOL_W 154#ifdef IPOL_W
155 slopeW = (line.w[1] - line.w[0]) * invDeltaX; 155 slopeW = (line.w[1] - line.w[0]) * invDeltaX;
156#endif 156#endif
157#ifdef IPOL_C0 157#ifdef IPOL_C0
158 slopeC = (line.c[0][1] - line.c[0][0]) * invDeltaX; 158 slopeC = (line.c[0][1] - line.c[0][0]) * invDeltaX;
159#endif 159#endif
160#ifdef IPOL_T0 160#ifdef IPOL_T0
161 slopeT[0] = (line.t[0][1] - line.t[0][0]) * invDeltaX; 161 slopeT[0] = (line.t[0][1] - line.t[0][0]) * invDeltaX;
162#endif 162#endif
163#ifdef IPOL_T1 163#ifdef IPOL_T1
164 slopeT[1] = (line.t[1][1] - line.t[1][0]) * invDeltaX; 164 slopeT[1] = (line.t[1][1] - line.t[1][0]) * invDeltaX;
165#endif 165#endif
166 166
167#ifdef SUBTEXEL 167#ifdef SUBTEXEL
168 subPixel = ( (f32) xStart ) - line.x[0]; 168 subPixel = ( (f32) xStart ) - line.x[0];
169#ifdef IPOL_Z 169#ifdef IPOL_Z
170 line.z[0] += slopeZ * subPixel; 170 line.z[0] += slopeZ * subPixel;
171#endif 171#endif
172#ifdef IPOL_W 172#ifdef IPOL_W
173 line.w[0] += slopeW * subPixel; 173 line.w[0] += slopeW * subPixel;
174#endif 174#endif
175#ifdef IPOL_C0 175#ifdef IPOL_C0
176 line.c[0][0] += slopeC * subPixel; 176 line.c[0][0] += slopeC * subPixel;
177#endif 177#endif
178#ifdef IPOL_T0 178#ifdef IPOL_T0
179 line.t[0][0] += slopeT[0] * subPixel; 179 line.t[0][0] += slopeT[0] * subPixel;
180#endif 180#endif
181#ifdef IPOL_T1 181#ifdef IPOL_T1
182 line.t[1][0] += slopeT[1] * subPixel; 182 line.t[1][0] += slopeT[1] * subPixel;
183#endif 183#endif
184#endif 184#endif
185 185
186 dst = (tVideoSample*)RenderTarget->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; 186 dst = (tVideoSample*)RenderTarget->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart;
187 187
188#ifdef USE_ZBUFFER 188#ifdef USE_ZBUFFER
189 z = (fp24*) DepthBuffer->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart; 189 z = (fp24*) DepthBuffer->lock() + ( line.y * RenderTarget->getDimension().Width ) + xStart;
190#endif 190#endif
191 191
192 192
193#ifdef INVERSE_W 193#ifdef INVERSE_W
194 f32 inversew; 194 f32 inversew;
195#endif 195#endif
196 196
197 tFixPoint tx0; 197 tFixPoint tx0;
198 tFixPoint ty0; 198 tFixPoint ty0;
199 199
200 tFixPoint r0, g0, b0; 200 tFixPoint r0, g0, b0;
201 201
202#ifdef IPOL_C0 202#ifdef IPOL_C0
203 tFixPoint r1, g1, b1; 203 tFixPoint r1, g1, b1;
204#endif 204#endif
205 205
206#ifdef BURNINGVIDEO_RENDERER_FAST 206#ifdef BURNINGVIDEO_RENDERER_FAST
207 u32 dIndex = ( line.y & 3 ) << 2; 207 u32 dIndex = ( line.y & 3 ) << 2;
208#endif 208#endif
209 209
210 for ( s32 i = 0; i <= dx; ++i ) 210 for ( s32 i = 0; i <= dx; ++i )
211 { 211 {
212#ifdef CMP_Z 212#ifdef CMP_Z
213 if ( line.z[0] < z[i] ) 213 if ( line.z[0] < z[i] )
214#endif 214#endif
215#ifdef CMP_W 215#ifdef CMP_W
216 if ( line.w[0] >= z[i] ) 216 if ( line.w[0] >= z[i] )
217#endif 217#endif
218 { 218 {
219#ifdef WRITE_Z 219#ifdef WRITE_Z
220 z[i] = line.z[0]; 220 z[i] = line.z[0];
221#endif 221#endif
222#ifdef WRITE_W 222#ifdef WRITE_W
223 z[i] = line.w[0]; 223 z[i] = line.w[0];
224#endif 224#endif
225 225
226 226
227#ifdef INVERSE_W 227#ifdef INVERSE_W
228 inversew = fix_inverse32 ( line.w[0] ); 228 inversew = fix_inverse32 ( line.w[0] );
229 tx0 = tofix ( line.t[0][0].x, inversew); 229 tx0 = tofix ( line.t[0][0].x, inversew);
230 ty0 = tofix ( line.t[0][0].y, inversew); 230 ty0 = tofix ( line.t[0][0].y, inversew);
231 231
232#ifdef IPOL_C0 232#ifdef IPOL_C0
233 r1 = tofix ( line.c[0][0].y ,inversew ); 233 r1 = tofix ( line.c[0][0].y ,inversew );
234 g1 = tofix ( line.c[0][0].z ,inversew ); 234 g1 = tofix ( line.c[0][0].z ,inversew );
235 b1 = tofix ( line.c[0][0].w ,inversew ); 235 b1 = tofix ( line.c[0][0].w ,inversew );
236#endif 236#endif
237 237
238#else 238#else
239 tx0 = tofix ( line.t[0][0].x ); 239 tx0 = tofix ( line.t[0][0].x );
240 ty0 = tofix ( line.t[0][0].y ); 240 ty0 = tofix ( line.t[0][0].y );
241#ifdef IPOL_C0 241#ifdef IPOL_C0
242 getTexel_plain2 ( r1, g1, b1, line.c[0][0] ); 242 getTexel_plain2 ( r1, g1, b1, line.c[0][0] );
243#endif 243#endif
244#endif 244#endif
245 245
246#ifdef IPOL_C0 246#ifdef IPOL_C0
247 getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); 247 getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 );
248 248
249 dst[i] = fix_to_color ( imulFix ( r0, r1 ), 249 dst[i] = fix_to_color ( imulFix ( r0, r1 ),
250 imulFix ( g0, g1 ), 250 imulFix ( g0, g1 ),
251 imulFix ( b0, b1 ) 251 imulFix ( b0, b1 )
252 ); 252 );
253#else 253#else
254 254
255#ifdef BURNINGVIDEO_RENDERER_FAST 255#ifdef BURNINGVIDEO_RENDERER_FAST
256 const tFixPointu d = dithermask [ dIndex | ( i ) & 3 ]; 256 const tFixPointu d = dithermask [ dIndex | ( i ) & 3 ];
257 dst[i] = getTexel_plain ( &IT[0], d + tx0, d + ty0 ); 257 dst[i] = getTexel_plain ( &IT[0], d + tx0, d + ty0 );
258#else 258#else
259 getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 ); 259 getSample_texture ( r0, g0, b0, &IT[0], tx0,ty0 );
260 dst[i] = fix_to_color ( r0, g0, b0 ); 260 dst[i] = fix_to_color ( r0, g0, b0 );
261#endif 261#endif
262 262
263#endif 263#endif
264 264
265 } 265 }
266 266
267#ifdef IPOL_Z 267#ifdef IPOL_Z
268 line.z[0] += slopeZ; 268 line.z[0] += slopeZ;
269#endif 269#endif
270#ifdef IPOL_W 270#ifdef IPOL_W
271 line.w[0] += slopeW; 271 line.w[0] += slopeW;
272#endif 272#endif
273#ifdef IPOL_C0 273#ifdef IPOL_C0
274 line.c[0][0] += slopeC; 274 line.c[0][0] += slopeC;
275#endif 275#endif
276#ifdef IPOL_T0 276#ifdef IPOL_T0
277 line.t[0][0] += slopeT[0]; 277 line.t[0][0] += slopeT[0];
278#endif 278#endif
279#ifdef IPOL_T1 279#ifdef IPOL_T1
280 line.t[1][0] += slopeT[1]; 280 line.t[1][0] += slopeT[1];
281#endif 281#endif
282 } 282 }
283 283
284} 284}
285 285
286void CTRTextureGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c ) 286void CTRTextureGouraud2::drawTriangle ( const s4DVertex *a,const s4DVertex *b,const s4DVertex *c )
287{ 287{
288 // sort on height, y 288 // sort on height, y
289 if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); 289 if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b);
290 if ( F32_A_GREATER_B ( b->Pos.y , c->Pos.y ) ) swapVertexPointer(&b, &c); 290 if ( F32_A_GREATER_B ( b->Pos.y , c->Pos.y ) ) swapVertexPointer(&b, &c);
291 if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b); 291 if ( F32_A_GREATER_B ( a->Pos.y , b->Pos.y ) ) swapVertexPointer(&a, &b);
292 292
293 const f32 ca = c->Pos.y - a->Pos.y; 293 const f32 ca = c->Pos.y - a->Pos.y;
294 const f32 ba = b->Pos.y - a->Pos.y; 294 const f32 ba = b->Pos.y - a->Pos.y;
295 const f32 cb = c->Pos.y - b->Pos.y; 295 const f32 cb = c->Pos.y - b->Pos.y;
296 // calculate delta y of the edges 296 // calculate delta y of the edges
297 scan.invDeltaY[0] = core::reciprocal( ca ); 297 scan.invDeltaY[0] = core::reciprocal( ca );
298 scan.invDeltaY[1] = core::reciprocal( ba ); 298 scan.invDeltaY[1] = core::reciprocal( ba );
299 scan.invDeltaY[2] = core::reciprocal( cb ); 299 scan.invDeltaY[2] = core::reciprocal( cb );
300 300
301 if ( F32_LOWER_EQUAL_0 ( scan.invDeltaY[0] ) ) 301 if ( F32_LOWER_EQUAL_0 ( scan.invDeltaY[0] ) )
302 return; 302 return;
303 303
304 // find if the major edge is left or right aligned 304 // find if the major edge is left or right aligned
305 f32 temp[4]; 305 f32 temp[4];
306 306
307 temp[0] = a->Pos.x - c->Pos.x; 307 temp[0] = a->Pos.x - c->Pos.x;
308 temp[1] = -ca; 308 temp[1] = -ca;
309 temp[2] = b->Pos.x - a->Pos.x; 309 temp[2] = b->Pos.x - a->Pos.x;
310 temp[3] = ba; 310 temp[3] = ba;
311 311
312 scan.left = ( temp[0] * temp[3] - temp[1] * temp[2] ) > 0.f ? 0 : 1; 312 scan.left = ( temp[0] * temp[3] - temp[1] * temp[2] ) > 0.f ? 0 : 1;
313 scan.right = 1 - scan.left; 313 scan.right = 1 - scan.left;
314 314
315 // calculate slopes for the major edge 315 // calculate slopes for the major edge
316 scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0]; 316 scan.slopeX[0] = (c->Pos.x - a->Pos.x) * scan.invDeltaY[0];
317 scan.x[0] = a->Pos.x; 317 scan.x[0] = a->Pos.x;
318 318
319#ifdef IPOL_Z 319#ifdef IPOL_Z
320 scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0]; 320 scan.slopeZ[0] = (c->Pos.z - a->Pos.z) * scan.invDeltaY[0];
321 scan.z[0] = a->Pos.z; 321 scan.z[0] = a->Pos.z;
322#endif 322#endif
323 323
324#ifdef IPOL_W 324#ifdef IPOL_W
325 scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0]; 325 scan.slopeW[0] = (c->Pos.w - a->Pos.w) * scan.invDeltaY[0];
326 scan.w[0] = a->Pos.w; 326 scan.w[0] = a->Pos.w;
327#endif 327#endif
328 328
329#ifdef IPOL_C0 329#ifdef IPOL_C0
330 scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0]; 330 scan.slopeC[0][0] = (c->Color[0] - a->Color[0]) * scan.invDeltaY[0];
331 scan.c[0][0] = a->Color[0]; 331 scan.c[0][0] = a->Color[0];
332#endif 332#endif
333 333
334#ifdef IPOL_T0 334#ifdef IPOL_T0
335 scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0]; 335 scan.slopeT[0][0] = (c->Tex[0] - a->Tex[0]) * scan.invDeltaY[0];
336 scan.t[0][0] = a->Tex[0]; 336 scan.t[0][0] = a->Tex[0];
337#endif 337#endif
338 338
339#ifdef IPOL_T1 339#ifdef IPOL_T1
340 scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0]; 340 scan.slopeT[1][0] = (c->Tex[1] - a->Tex[1]) * scan.invDeltaY[0];
341 scan.t[1][0] = a->Tex[1]; 341 scan.t[1][0] = a->Tex[1];
342#endif 342#endif
343 343
344 // top left fill convention y run 344 // top left fill convention y run
345 s32 yStart; 345 s32 yStart;
346 s32 yEnd; 346 s32 yEnd;
347 347
348#ifdef SUBTEXEL 348#ifdef SUBTEXEL
349 f32 subPixel; 349 f32 subPixel;
350#endif 350#endif
351 351
352 // rasterize upper sub-triangle 352 // rasterize upper sub-triangle
353 if ( (f32) 0.0 != scan.invDeltaY[1] ) 353 if ( (f32) 0.0 != scan.invDeltaY[1] )
354 { 354 {
355 // calculate slopes for top edge 355 // calculate slopes for top edge
356 scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1]; 356 scan.slopeX[1] = (b->Pos.x - a->Pos.x) * scan.invDeltaY[1];
357 scan.x[1] = a->Pos.x; 357 scan.x[1] = a->Pos.x;
358 358
359#ifdef IPOL_Z 359#ifdef IPOL_Z
360 scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1]; 360 scan.slopeZ[1] = (b->Pos.z - a->Pos.z) * scan.invDeltaY[1];
361 scan.z[1] = a->Pos.z; 361 scan.z[1] = a->Pos.z;
362#endif 362#endif
363 363
364#ifdef IPOL_W 364#ifdef IPOL_W
365 scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1]; 365 scan.slopeW[1] = (b->Pos.w - a->Pos.w) * scan.invDeltaY[1];
366 scan.w[1] = a->Pos.w; 366 scan.w[1] = a->Pos.w;
367#endif 367#endif
368 368
369#ifdef IPOL_C0 369#ifdef IPOL_C0
370 scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1]; 370 scan.slopeC[0][1] = (b->Color[0] - a->Color[0]) * scan.invDeltaY[1];
371 scan.c[0][1] = a->Color[0]; 371 scan.c[0][1] = a->Color[0];
372#endif 372#endif
373 373
374#ifdef IPOL_T0 374#ifdef IPOL_T0
375 scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1]; 375 scan.slopeT[0][1] = (b->Tex[0] - a->Tex[0]) * scan.invDeltaY[1];
376 scan.t[0][1] = a->Tex[0]; 376 scan.t[0][1] = a->Tex[0];
377#endif 377#endif
378 378
379#ifdef IPOL_T1 379#ifdef IPOL_T1
380 scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1]; 380 scan.slopeT[1][1] = (b->Tex[1] - a->Tex[1]) * scan.invDeltaY[1];
381 scan.t[1][1] = a->Tex[1]; 381 scan.t[1][1] = a->Tex[1];
382#endif 382#endif
383 383
384 // apply top-left fill convention, top part 384 // apply top-left fill convention, top part
385 yStart = core::ceil32( a->Pos.y ); 385 yStart = core::ceil32( a->Pos.y );
386 yEnd = core::ceil32( b->Pos.y ) - 1; 386 yEnd = core::ceil32( b->Pos.y ) - 1;
387 387
388#ifdef SUBTEXEL 388#ifdef SUBTEXEL
389 subPixel = ( (f32) yStart ) - a->Pos.y; 389 subPixel = ( (f32) yStart ) - a->Pos.y;
390 390
391 // correct to pixel center 391 // correct to pixel center
392 scan.x[0] += scan.slopeX[0] * subPixel; 392 scan.x[0] += scan.slopeX[0] * subPixel;
393 scan.x[1] += scan.slopeX[1] * subPixel; 393 scan.x[1] += scan.slopeX[1] * subPixel;
394 394
395#ifdef IPOL_Z 395#ifdef IPOL_Z
396 scan.z[0] += scan.slopeZ[0] * subPixel; 396 scan.z[0] += scan.slopeZ[0] * subPixel;
397 scan.z[1] += scan.slopeZ[1] * subPixel; 397 scan.z[1] += scan.slopeZ[1] * subPixel;
398#endif 398#endif
399 399
400#ifdef IPOL_W 400#ifdef IPOL_W
401 scan.w[0] += scan.slopeW[0] * subPixel; 401 scan.w[0] += scan.slopeW[0] * subPixel;
402 scan.w[1] += scan.slopeW[1] * subPixel; 402 scan.w[1] += scan.slopeW[1] * subPixel;
403#endif 403#endif
404 404
405#ifdef IPOL_C0 405#ifdef IPOL_C0
406 scan.c[0][0] += scan.slopeC[0][0] * subPixel; 406 scan.c[0][0] += scan.slopeC[0][0] * subPixel;
407 scan.c[0][1] += scan.slopeC[0][1] * subPixel; 407 scan.c[0][1] += scan.slopeC[0][1] * subPixel;
408#endif 408#endif
409 409
410#ifdef IPOL_T0 410#ifdef IPOL_T0
411 scan.t[0][0] += scan.slopeT[0][0] * subPixel; 411 scan.t[0][0] += scan.slopeT[0][0] * subPixel;
412 scan.t[0][1] += scan.slopeT[0][1] * subPixel; 412 scan.t[0][1] += scan.slopeT[0][1] * subPixel;
413#endif 413#endif
414 414
415#ifdef IPOL_T1 415#ifdef IPOL_T1
416 scan.t[1][0] += scan.slopeT[1][0] * subPixel; 416 scan.t[1][0] += scan.slopeT[1][0] * subPixel;
417 scan.t[1][1] += scan.slopeT[1][1] * subPixel; 417 scan.t[1][1] += scan.slopeT[1][1] * subPixel;
418#endif 418#endif
419 419
420#endif 420#endif
421 421
422 // rasterize the edge scanlines 422 // rasterize the edge scanlines
423 for( line.y = yStart; line.y <= yEnd; ++line.y) 423 for( line.y = yStart; line.y <= yEnd; ++line.y)
424 { 424 {
425 line.x[scan.left] = scan.x[0]; 425 line.x[scan.left] = scan.x[0];
426 line.x[scan.right] = scan.x[1]; 426 line.x[scan.right] = scan.x[1];
427 427
428#ifdef IPOL_Z 428#ifdef IPOL_Z
429 line.z[scan.left] = scan.z[0]; 429 line.z[scan.left] = scan.z[0];
430 line.z[scan.right] = scan.z[1]; 430 line.z[scan.right] = scan.z[1];
431#endif 431#endif
432 432
433#ifdef IPOL_W 433#ifdef IPOL_W
434 line.w[scan.left] = scan.w[0]; 434 line.w[scan.left] = scan.w[0];
435 line.w[scan.right] = scan.w[1]; 435 line.w[scan.right] = scan.w[1];
436#endif 436#endif
437 437
438#ifdef IPOL_C0 438#ifdef IPOL_C0
439 line.c[0][scan.left] = scan.c[0][0]; 439 line.c[0][scan.left] = scan.c[0][0];
440 line.c[0][scan.right] = scan.c[0][1]; 440 line.c[0][scan.right] = scan.c[0][1];
441#endif 441#endif
442 442
443#ifdef IPOL_T0 443#ifdef IPOL_T0
444 line.t[0][scan.left] = scan.t[0][0]; 444 line.t[0][scan.left] = scan.t[0][0];
445 line.t[0][scan.right] = scan.t[0][1]; 445 line.t[0][scan.right] = scan.t[0][1];
446#endif 446#endif
447 447
448#ifdef IPOL_T1 448#ifdef IPOL_T1
449 line.t[1][scan.left] = scan.t[1][0]; 449 line.t[1][scan.left] = scan.t[1][0];
450 line.t[1][scan.right] = scan.t[1][1]; 450 line.t[1][scan.right] = scan.t[1][1];
451#endif 451#endif
452 452
453 // render a scanline 453 // render a scanline
454 scanline_bilinear (); 454 scanline_bilinear ();
455 455
456 scan.x[0] += scan.slopeX[0]; 456 scan.x[0] += scan.slopeX[0];
457 scan.x[1] += scan.slopeX[1]; 457 scan.x[1] += scan.slopeX[1];
458 458
459#ifdef IPOL_Z 459#ifdef IPOL_Z
460 scan.z[0] += scan.slopeZ[0]; 460 scan.z[0] += scan.slopeZ[0];
461 scan.z[1] += scan.slopeZ[1]; 461 scan.z[1] += scan.slopeZ[1];
462#endif 462#endif
463 463
464#ifdef IPOL_W 464#ifdef IPOL_W
465 scan.w[0] += scan.slopeW[0]; 465 scan.w[0] += scan.slopeW[0];
466 scan.w[1] += scan.slopeW[1]; 466 scan.w[1] += scan.slopeW[1];
467#endif 467#endif
468 468
469#ifdef IPOL_C0 469#ifdef IPOL_C0
470 scan.c[0][0] += scan.slopeC[0][0]; 470 scan.c[0][0] += scan.slopeC[0][0];
471 scan.c[0][1] += scan.slopeC[0][1]; 471 scan.c[0][1] += scan.slopeC[0][1];
472#endif 472#endif
473 473
474#ifdef IPOL_T0 474#ifdef IPOL_T0
475 scan.t[0][0] += scan.slopeT[0][0]; 475 scan.t[0][0] += scan.slopeT[0][0];
476 scan.t[0][1] += scan.slopeT[0][1]; 476 scan.t[0][1] += scan.slopeT[0][1];
477#endif 477#endif
478 478
479#ifdef IPOL_T1 479#ifdef IPOL_T1
480 scan.t[1][0] += scan.slopeT[1][0]; 480 scan.t[1][0] += scan.slopeT[1][0];
481 scan.t[1][1] += scan.slopeT[1][1]; 481 scan.t[1][1] += scan.slopeT[1][1];
482#endif 482#endif
483 483
484 } 484 }
485 } 485 }
486 486
487 // rasterize lower sub-triangle 487 // rasterize lower sub-triangle
488 if ( (f32) 0.0 != scan.invDeltaY[2] ) 488 if ( (f32) 0.0 != scan.invDeltaY[2] )
489 { 489 {
490 // advance to middle point 490 // advance to middle point
491 if( (f32) 0.0 != scan.invDeltaY[1] ) 491 if( (f32) 0.0 != scan.invDeltaY[1] )
492 { 492 {
493 temp[0] = b->Pos.y - a->Pos.y; // dy 493 temp[0] = b->Pos.y - a->Pos.y; // dy
494 494
495 scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0]; 495 scan.x[0] = a->Pos.x + scan.slopeX[0] * temp[0];
496#ifdef IPOL_Z 496#ifdef IPOL_Z
497 scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0]; 497 scan.z[0] = a->Pos.z + scan.slopeZ[0] * temp[0];
498#endif 498#endif
499#ifdef IPOL_W 499#ifdef IPOL_W
500 scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0]; 500 scan.w[0] = a->Pos.w + scan.slopeW[0] * temp[0];
501#endif 501#endif
502#ifdef IPOL_C0 502#ifdef IPOL_C0
503 scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0]; 503 scan.c[0][0] = a->Color[0] + scan.slopeC[0][0] * temp[0];
504#endif 504#endif
505#ifdef IPOL_T0 505#ifdef IPOL_T0
506 scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0]; 506 scan.t[0][0] = a->Tex[0] + scan.slopeT[0][0] * temp[0];
507#endif 507#endif
508#ifdef IPOL_T1 508#ifdef IPOL_T1
509 scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0]; 509 scan.t[1][0] = a->Tex[1] + scan.slopeT[1][0] * temp[0];
510#endif 510#endif
511 511
512 } 512 }
513 513
514 // calculate slopes for bottom edge 514 // calculate slopes for bottom edge
515 scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2]; 515 scan.slopeX[1] = (c->Pos.x - b->Pos.x) * scan.invDeltaY[2];
516 scan.x[1] = b->Pos.x; 516 scan.x[1] = b->Pos.x;
517 517
518#ifdef IPOL_Z 518#ifdef IPOL_Z
519 scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2]; 519 scan.slopeZ[1] = (c->Pos.z - b->Pos.z) * scan.invDeltaY[2];
520 scan.z[1] = b->Pos.z; 520 scan.z[1] = b->Pos.z;
521#endif 521#endif
522 522
523#ifdef IPOL_W 523#ifdef IPOL_W
524 scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2]; 524 scan.slopeW[1] = (c->Pos.w - b->Pos.w) * scan.invDeltaY[2];
525 scan.w[1] = b->Pos.w; 525 scan.w[1] = b->Pos.w;
526#endif 526#endif
527 527
528#ifdef IPOL_C0 528#ifdef IPOL_C0
529 scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2]; 529 scan.slopeC[0][1] = (c->Color[0] - b->Color[0]) * scan.invDeltaY[2];
530 scan.c[0][1] = b->Color[0]; 530 scan.c[0][1] = b->Color[0];
531#endif 531#endif
532 532
533#ifdef IPOL_T0 533#ifdef IPOL_T0
534 scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2]; 534 scan.slopeT[0][1] = (c->Tex[0] - b->Tex[0]) * scan.invDeltaY[2];
535 scan.t[0][1] = b->Tex[0]; 535 scan.t[0][1] = b->Tex[0];
536#endif 536#endif
537 537
538#ifdef IPOL_T1 538#ifdef IPOL_T1
539 scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2]; 539 scan.slopeT[1][1] = (c->Tex[1] - b->Tex[1]) * scan.invDeltaY[2];
540 scan.t[1][1] = b->Tex[1]; 540 scan.t[1][1] = b->Tex[1];
541#endif 541#endif
542 542
543 // apply top-left fill convention, top part 543 // apply top-left fill convention, top part
544 yStart = core::ceil32( b->Pos.y ); 544 yStart = core::ceil32( b->Pos.y );
545 yEnd = core::ceil32( c->Pos.y ) - 1; 545 yEnd = core::ceil32( c->Pos.y ) - 1;
546 546
547#ifdef SUBTEXEL 547#ifdef SUBTEXEL
548 548
549 subPixel = ( (f32) yStart ) - b->Pos.y; 549 subPixel = ( (f32) yStart ) - b->Pos.y;
550 550
551 // correct to pixel center 551 // correct to pixel center
552 scan.x[0] += scan.slopeX[0] * subPixel; 552 scan.x[0] += scan.slopeX[0] * subPixel;
553 scan.x[1] += scan.slopeX[1] * subPixel; 553 scan.x[1] += scan.slopeX[1] * subPixel;
554 554
555#ifdef IPOL_Z 555#ifdef IPOL_Z
556 scan.z[0] += scan.slopeZ[0] * subPixel; 556 scan.z[0] += scan.slopeZ[0] * subPixel;
557 scan.z[1] += scan.slopeZ[1] * subPixel; 557 scan.z[1] += scan.slopeZ[1] * subPixel;
558#endif 558#endif
559 559
560#ifdef IPOL_W 560#ifdef IPOL_W
561 scan.w[0] += scan.slopeW[0] * subPixel; 561 scan.w[0] += scan.slopeW[0] * subPixel;
562 scan.w[1] += scan.slopeW[1] * subPixel; 562 scan.w[1] += scan.slopeW[1] * subPixel;
563#endif 563#endif
564 564
565#ifdef IPOL_C0 565#ifdef IPOL_C0
566 scan.c[0][0] += scan.slopeC[0][0] * subPixel; 566 scan.c[0][0] += scan.slopeC[0][0] * subPixel;
567 scan.c[0][1] += scan.slopeC[0][1] * subPixel; 567 scan.c[0][1] += scan.slopeC[0][1] * subPixel;
568#endif 568#endif
569 569
570#ifdef IPOL_T0 570#ifdef IPOL_T0
571 scan.t[0][0] += scan.slopeT[0][0] * subPixel; 571 scan.t[0][0] += scan.slopeT[0][0] * subPixel;
572 scan.t[0][1] += scan.slopeT[0][1] * subPixel; 572 scan.t[0][1] += scan.slopeT[0][1] * subPixel;
573#endif 573#endif
574 574
575#ifdef IPOL_T1 575#ifdef IPOL_T1
576 scan.t[1][0] += scan.slopeT[1][0] * subPixel; 576 scan.t[1][0] += scan.slopeT[1][0] * subPixel;
577 scan.t[1][1] += scan.slopeT[1][1] * subPixel; 577 scan.t[1][1] += scan.slopeT[1][1] * subPixel;
578#endif 578#endif
579 579
580#endif 580#endif
581 581
582 // rasterize the edge scanlines 582 // rasterize the edge scanlines
583 for( line.y = yStart; line.y <= yEnd; ++line.y) 583 for( line.y = yStart; line.y <= yEnd; ++line.y)
584 { 584 {
585 line.x[scan.left] = scan.x[0]; 585 line.x[scan.left] = scan.x[0];
586 line.x[scan.right] = scan.x[1]; 586 line.x[scan.right] = scan.x[1];
587 587
588#ifdef IPOL_Z 588#ifdef IPOL_Z
589 line.z[scan.left] = scan.z[0]; 589 line.z[scan.left] = scan.z[0];
590 line.z[scan.right] = scan.z[1]; 590 line.z[scan.right] = scan.z[1];
591#endif 591#endif
592 592
593#ifdef IPOL_W 593#ifdef IPOL_W
594 line.w[scan.left] = scan.w[0]; 594 line.w[scan.left] = scan.w[0];
595 line.w[scan.right] = scan.w[1]; 595 line.w[scan.right] = scan.w[1];
596#endif 596#endif
597 597
598#ifdef IPOL_C0 598#ifdef IPOL_C0
599 line.c[0][scan.left] = scan.c[0][0]; 599 line.c[0][scan.left] = scan.c[0][0];
600 line.c[0][scan.right] = scan.c[0][1]; 600 line.c[0][scan.right] = scan.c[0][1];
601#endif 601#endif
602 602
603#ifdef IPOL_T0 603#ifdef IPOL_T0
604 line.t[0][scan.left] = scan.t[0][0]; 604 line.t[0][scan.left] = scan.t[0][0];
605 line.t[0][scan.right] = scan.t[0][1]; 605 line.t[0][scan.right] = scan.t[0][1];
606#endif 606#endif
607 607
608#ifdef IPOL_T1 608#ifdef IPOL_T1
609 line.t[1][scan.left] = scan.t[1][0]; 609 line.t[1][scan.left] = scan.t[1][0];
610 line.t[1][scan.right] = scan.t[1][1]; 610 line.t[1][scan.right] = scan.t[1][1];
611#endif 611#endif
612 612
613 // render a scanline 613 // render a scanline
614 scanline_bilinear ( ); 614 scanline_bilinear ( );
615 615
616 scan.x[0] += scan.slopeX[0]; 616 scan.x[0] += scan.slopeX[0];
617 scan.x[1] += scan.slopeX[1]; 617 scan.x[1] += scan.slopeX[1];
618 618
619#ifdef IPOL_Z 619#ifdef IPOL_Z
620 scan.z[0] += scan.slopeZ[0]; 620 scan.z[0] += scan.slopeZ[0];
621 scan.z[1] += scan.slopeZ[1]; 621 scan.z[1] += scan.slopeZ[1];
622#endif 622#endif
623 623
624#ifdef IPOL_W 624#ifdef IPOL_W
625 scan.w[0] += scan.slopeW[0]; 625 scan.w[0] += scan.slopeW[0];
626 scan.w[1] += scan.slopeW[1]; 626 scan.w[1] += scan.slopeW[1];
627#endif 627#endif
628 628
629#ifdef IPOL_C0 629#ifdef IPOL_C0
630 scan.c[0][0] += scan.slopeC[0][0]; 630 scan.c[0][0] += scan.slopeC[0][0];
631 scan.c[0][1] += scan.slopeC[0][1]; 631 scan.c[0][1] += scan.slopeC[0][1];
632#endif 632#endif
633 633
634#ifdef IPOL_T0 634#ifdef IPOL_T0
635 scan.t[0][0] += scan.slopeT[0][0]; 635 scan.t[0][0] += scan.slopeT[0][0];
636 scan.t[0][1] += scan.slopeT[0][1]; 636 scan.t[0][1] += scan.slopeT[0][1];
637#endif 637#endif
638 638
639#ifdef IPOL_T1 639#ifdef IPOL_T1
640 scan.t[1][0] += scan.slopeT[1][0]; 640 scan.t[1][0] += scan.slopeT[1][0];
641 scan.t[1][1] += scan.slopeT[1][1]; 641 scan.t[1][1] += scan.slopeT[1][1];
642#endif 642#endif
643 643
644 } 644 }
645 } 645 }
646 646
647} 647}
648 648
649} // end namespace video 649} // end namespace video
650} // end namespace irr 650} // end namespace irr
651 651
652#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ 652#endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
653 653
654namespace irr 654namespace irr
655{ 655{
656namespace video 656namespace video
657{ 657{
658 658
659//! creates a flat triangle renderer 659//! creates a flat triangle renderer
660IBurningShader* createTriangleRendererTextureGouraud2(CBurningVideoDriver* driver) 660IBurningShader* createTriangleRendererTextureGouraud2(CBurningVideoDriver* driver)
661{ 661{
662 #ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_ 662 #ifdef _IRR_COMPILE_WITH_BURNINGSVIDEO_
663 return new CTRTextureGouraud2(driver); 663 return new CTRTextureGouraud2(driver);
664 #else 664 #else
665 return 0; 665 return 0;
666 #endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_ 666 #endif // _IRR_COMPILE_WITH_BURNINGSVIDEO_
667} 667}
668 668
669 669
670} // end namespace video 670} // end namespace video
671} // end namespace irr 671} // end namespace irr
672 672
673 673
674 674
generated by cgit v1.1 at 2024-07-06 17:09:54 +0000