3 #include "dpsoftrast.h"
10 typedef enum bool {false, true} bool;
13 #if defined(__GNUC__) || (defined(_MSC_VER) && _MSC_VER >= 1400)
14 #define RESTRICT __restrict
20 #define GL_FRONT_LEFT 0x0400
21 #define GL_FRONT_RIGHT 0x0401
22 #define GL_BACK_LEFT 0x0402
23 #define GL_BACK_RIGHT 0x0403
24 #define GL_FRONT 0x0404
25 #define GL_BACK 0x0405
26 #define GL_LEFT 0x0406
27 #define GL_RIGHT 0x0407
28 #define GL_FRONT_AND_BACK 0x0408
29 #define GL_AUX0 0x0409
30 #define GL_AUX1 0x040A
31 #define GL_AUX2 0x040B
32 #define GL_AUX3 0x040C
34 #define GL_NEVER 0x0200
35 #define GL_LESS 0x0201
36 #define GL_EQUAL 0x0202
37 #define GL_LEQUAL 0x0203
38 #define GL_GREATER 0x0204
39 #define GL_NOTEQUAL 0x0205
40 #define GL_GEQUAL 0x0206
41 #define GL_ALWAYS 0x0207
45 #define GL_SRC_COLOR 0x0300
46 #define GL_ONE_MINUS_SRC_COLOR 0x0301
47 #define GL_DST_COLOR 0x0306
48 #define GL_ONE_MINUS_DST_COLOR 0x0307
49 #define GL_SRC_ALPHA 0x0302
50 #define GL_ONE_MINUS_SRC_ALPHA 0x0303
51 #define GL_DST_ALPHA 0x0304
52 #define GL_ONE_MINUS_DST_ALPHA 0x0305
53 #define GL_SRC_ALPHA_SATURATE 0x0308
54 #define GL_CONSTANT_COLOR 0x8001
55 #define GL_ONE_MINUS_CONSTANT_COLOR 0x8002
56 #define GL_CONSTANT_ALPHA 0x8003
57 #define GL_ONE_MINUS_CONSTANT_ALPHA 0x8004
59 typedef enum DPSOFTRAST_ARRAY_e
61 DPSOFTRAST_ARRAY_POSITION,
62 DPSOFTRAST_ARRAY_COLOR,
63 DPSOFTRAST_ARRAY_TEXCOORD0,
64 DPSOFTRAST_ARRAY_TEXCOORD1,
65 DPSOFTRAST_ARRAY_TEXCOORD2,
66 DPSOFTRAST_ARRAY_TEXCOORD3,
67 DPSOFTRAST_ARRAY_TEXCOORD4,
68 DPSOFTRAST_ARRAY_TEXCOORD5,
69 DPSOFTRAST_ARRAY_TEXCOORD6,
70 DPSOFTRAST_ARRAY_TEXCOORD7,
71 DPSOFTRAST_ARRAY_TOTAL
75 typedef struct DPSOFTRAST_Texture_s
82 DPSOFTRAST_TEXTURE_FILTER filter;
86 int mipmap[DPSOFTRAST_MAXMIPMAPS][5];
90 typedef struct DPSOFTRAST_State_User_s
106 float polygonoffset[2];
109 DPSOFTRAST_State_User;
111 #define DPSOFTRAST_MAXSUBSPAN 16
113 typedef struct DPSOFTRAST_State_Draw_Span_s
115 int start; // pixel index
116 int length; // pixel count
117 int startx; // usable range (according to pixelmask)
118 int endx; // usable range (according to pixelmask)
119 unsigned char mip[DPSOFTRAST_MAXTEXTUREUNITS]; // texcoord to screen space density values (for picking mipmap of textures)
120 unsigned char *pixelmask; // true for pixels that passed depth test, false for others
121 // [0][n][] is start interpolant values (projected)
122 // [1][n][] is end interpolant values (projected)
123 // [0][DPSOFTRAST_ARRAY_TOTAL][] is start screencoord4f
124 // [1][DPSOFTRAST_ARRAY_TOTAL][] is end screencoord4f
125 // NOTE: screencoord4f[3] is W (basically 1/Z), useful for depthbuffer
126 float data[2][DPSOFTRAST_ARRAY_TOTAL+1][4];
128 DPSOFTRAST_State_Draw_Span;
130 #define DPSOFTRAST_DRAW_MAXSPANQUEUE 1024
132 typedef struct DPSOFTRAST_State_Draw_s
136 float *in_array4f[DPSOFTRAST_ARRAY_TOTAL];
137 float *post_array4f[DPSOFTRAST_ARRAY_TOTAL];
138 float *screencoord4f;
140 // spans are queued in this structure for dispatch to the pixel shader,
141 // partly to improve cache locality, partly for batching purposes, spans
142 // are flushed before DrawTriangles returns to caller
144 DPSOFTRAST_State_Draw_Span spanqueue[DPSOFTRAST_DRAW_MAXSPANQUEUE];
146 DPSOFTRAST_State_Draw;
148 #define DPSOFTRAST_VALIDATE_FB 1
149 #define DPSOFTRAST_VALIDATE_DEPTHFUNC 2
150 #define DPSOFTRAST_VALIDATE_BLENDFUNC 4
151 #define DPSOFTRAST_VALIDATE_DRAW (DPSOFTRAST_VALIDATE_FB | DPSOFTRAST_VALIDATE_DEPTHFUNC | DPSOFTRAST_VALIDATE_BLENDFUNC)
153 typedef enum DPSOFTRAST_BLENDMODE_e
155 DPSOFTRAST_BLENDMODE_OPAQUE,
156 DPSOFTRAST_BLENDMODE_ALPHA,
157 DPSOFTRAST_BLENDMODE_ADDALPHA,
158 DPSOFTRAST_BLENDMODE_ADD,
159 DPSOFTRAST_BLENDMODE_INVMOD,
160 DPSOFTRAST_BLENDMODE_MUL,
161 DPSOFTRAST_BLENDMODE_MUL2,
162 DPSOFTRAST_BLENDMODE_SUBALPHA,
163 DPSOFTRAST_BLENDMODE_PSEUDOALPHA,
164 DPSOFTRAST_BLENDMODE_TOTAL
166 DPSOFTRAST_BLENDMODE;
168 typedef struct DPSOFTRAST_State_s
170 // DPSOFTRAST_VALIDATE_ flags
176 unsigned int *fb_depthpixels;
177 unsigned int *fb_colorpixels[4];
179 const float *pointer_vertex3f;
180 const float *pointer_color4f;
181 const unsigned char *pointer_color4ub;
182 const float *pointer_texcoordf[DPSOFTRAST_MAXTEXCOORDARRAYS];
185 int stride_texcoord[DPSOFTRAST_MAXTEXCOORDARRAYS];
186 int components_texcoord[DPSOFTRAST_MAXTEXCOORDARRAYS];
187 DPSOFTRAST_Texture *texbound[DPSOFTRAST_MAXTEXTUREUNITS];
190 int shader_permutation;
191 float uniform4f[DPSOFTRAST_UNIFORM_TOTAL*4];
192 int uniform1i[DPSOFTRAST_UNIFORM_TOTAL];
194 // derived values (DPSOFTRAST_VALIDATE_FB)
195 int fb_clearscissor[4];
197 int fb_viewportscissor[4];
198 float fb_viewportcenter[2];
199 float fb_viewportscale[2];
201 // derived values (DPSOFTRAST_VALIDATE_DEPTHFUNC)
204 // derived values (DPSOFTRAST_VALIDATE_BLENDFUNC)
209 int texture_firstfree;
210 DPSOFTRAST_Texture *texture;
215 const char *errorstring;
217 DPSOFTRAST_State_User user;
219 DPSOFTRAST_State_Draw draw;
223 DPSOFTRAST_State dpsoftrast;
225 extern int dpsoftrast_test;
227 #define DPSOFTRAST_DEPTHSCALE (1024.0f*1048576.0f)
228 #define DPSOFTRAST_BGRA8_FROM_RGBA32F(r,g,b,a) (((int)(r * 255.0f + 0.5f) << 16) | ((int)(g * 255.0f + 0.5f) << 8) | (int)(b * 255.0f + 0.5f) | ((int)(a * 255.0f + 0.5f) << 24))
229 #define DPSOFTRAST_DEPTH32_FROM_DEPTH32F(d) ((int)(DPSOFTRAST_DEPTHSCALE * (1-d)))
230 #define DPSOFTRAST_DRAW_MAXSPANLENGTH 256
232 void DPSOFTRAST_RecalcFB(void)
234 // calculate framebuffer scissor, viewport, viewport clipped by scissor,
235 // and viewport projection values
236 int x1, x2, x3, x4, x5, x6;
237 int y1, y2, y3, y4, y5, y6;
238 x1 = dpsoftrast.user.scissor[0];
239 x2 = dpsoftrast.user.scissor[0] + dpsoftrast.user.scissor[2];
240 x3 = dpsoftrast.user.viewport[0];
241 x4 = dpsoftrast.user.viewport[0] + dpsoftrast.user.viewport[2];
242 y1 = dpsoftrast.fb_height - dpsoftrast.user.scissor[1] - dpsoftrast.user.scissor[3];
243 y2 = dpsoftrast.fb_height - dpsoftrast.user.scissor[1];
244 y3 = dpsoftrast.fb_height - dpsoftrast.user.viewport[1] - dpsoftrast.user.viewport[3];
245 y4 = dpsoftrast.fb_height - dpsoftrast.user.viewport[1];
246 if (!dpsoftrast.user.scissortest) {x1 = 0;y1 = 0;x2 = dpsoftrast.fb_width;y2 = dpsoftrast.fb_height;}
248 if (x2 > dpsoftrast.fb_width) x2 = dpsoftrast.fb_width;
250 if (x4 > dpsoftrast.fb_width) x4 = dpsoftrast.fb_width;
252 if (y2 > dpsoftrast.fb_height) y2 = dpsoftrast.fb_height;
254 if (y4 > dpsoftrast.fb_height) y4 = dpsoftrast.fb_height;
255 x5 = x1;if (x5 < x3) x5 = x3;
256 x6 = x2;if (x6 > x4) x4 = x4;
257 y5 = y1;if (y5 < y3) y5 = y3;
258 y6 = y2;if (y6 > y4) y6 = y4;
259 dpsoftrast.fb_clearscissor[0] = x1;
260 dpsoftrast.fb_clearscissor[1] = y1;
261 dpsoftrast.fb_clearscissor[2] = x2 - x1;
262 dpsoftrast.fb_clearscissor[3] = y2 - y1;
263 dpsoftrast.fb_viewport[0] = x3;
264 dpsoftrast.fb_viewport[1] = y3;
265 dpsoftrast.fb_viewport[2] = x4 - x3;
266 dpsoftrast.fb_viewport[3] = y4 - y3;
267 dpsoftrast.fb_viewportscissor[0] = x5;
268 dpsoftrast.fb_viewportscissor[1] = y5;
269 dpsoftrast.fb_viewportscissor[2] = x6 - x5;
270 dpsoftrast.fb_viewportscissor[3] = y6 - y5;
271 dpsoftrast.fb_viewportcenter[0] = dpsoftrast.user.viewport[0] + 0.5f * dpsoftrast.user.viewport[2] - 0.5f;
272 dpsoftrast.fb_viewportcenter[1] = dpsoftrast.fb_height - dpsoftrast.user.viewport[1] - 0.5f * dpsoftrast.user.viewport[3] - 0.5f;
273 dpsoftrast.fb_viewportscale[0] = 0.5f * dpsoftrast.user.viewport[2];
274 dpsoftrast.fb_viewportscale[1] = -0.5f * dpsoftrast.user.viewport[3];
277 void DPSOFTRAST_RecalcDepthFunc(void)
279 dpsoftrast.fb_depthfunc = dpsoftrast.user.depthtest ? dpsoftrast.user.depthfunc : GL_ALWAYS;
282 int blendmodetable[][4] =
284 {DPSOFTRAST_BLENDMODE_OPAQUE, GL_ONE, GL_ZERO, false},
285 {DPSOFTRAST_BLENDMODE_ALPHA, GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA, false},
286 {DPSOFTRAST_BLENDMODE_ADDALPHA, GL_SRC_ALPHA, GL_ONE, false},
287 {DPSOFTRAST_BLENDMODE_ADD, GL_ONE, GL_ONE, false},
288 {DPSOFTRAST_BLENDMODE_INVMOD, GL_ZERO, GL_ONE_MINUS_SRC_COLOR, false},
289 {DPSOFTRAST_BLENDMODE_MUL, GL_ZERO, GL_SRC_COLOR, false},
290 {DPSOFTRAST_BLENDMODE_MUL, GL_DST_COLOR, GL_ZERO, false},
291 {DPSOFTRAST_BLENDMODE_MUL2, GL_DST_COLOR, GL_SRC_COLOR, false},
292 {DPSOFTRAST_BLENDMODE_PSEUDOALPHA, GL_ONE, GL_ONE_MINUS_SRC_ALPHA, false},
293 {DPSOFTRAST_BLENDMODE_SUBALPHA, GL_SRC_COLOR, GL_ONE, true}
296 void DPSOFTRAST_RecalcBlendFunc(void)
299 dpsoftrast.fb_blendmode = DPSOFTRAST_BLENDMODE_OPAQUE;
300 for (i = 0;i < (int)(sizeof(blendmodetable) / sizeof(blendmodetable[0]));i++)
302 if (dpsoftrast.user.blendfunc[0] == blendmodetable[i][1] && dpsoftrast.user.blendfunc[1] == blendmodetable[i][2] && dpsoftrast.user.blendsubtract == blendmodetable[i][3])
304 dpsoftrast.fb_blendmode = blendmodetable[i][0];
310 #define DPSOFTRAST_ValidateQuick(f) ((dpsoftrast.validate & (f)) ? (DPSOFTRAST_Validate(f), 0) : 0)
312 void DPSOFTRAST_Validate(int mask)
314 mask &= dpsoftrast.validate;
317 if (mask & DPSOFTRAST_VALIDATE_FB)
319 dpsoftrast.validate &= ~DPSOFTRAST_VALIDATE_FB;
320 DPSOFTRAST_RecalcFB();
322 if (mask & DPSOFTRAST_VALIDATE_DEPTHFUNC)
324 dpsoftrast.validate &= ~DPSOFTRAST_VALIDATE_DEPTHFUNC;
325 DPSOFTRAST_RecalcDepthFunc();
327 if (mask & DPSOFTRAST_VALIDATE_BLENDFUNC)
329 dpsoftrast.validate &= ~DPSOFTRAST_VALIDATE_BLENDFUNC;
330 DPSOFTRAST_RecalcBlendFunc();
334 DPSOFTRAST_Texture *DPSOFTRAST_Texture_GetByIndex(int index)
336 if (index >= 1 && index < dpsoftrast.texture_end && dpsoftrast.texture[index].bytes)
337 return &dpsoftrast.texture[index];
341 int DPSOFTRAST_Texture_New(int flags, int width, int height, int depth)
350 int sides = (flags & DPSOFTRAST_TEXTURE_FLAG_CUBEMAP) ? 6 : 1;
351 int texformat = flags & DPSOFTRAST_TEXTURE_FORMAT_COMPAREMASK;
352 DPSOFTRAST_Texture *texture;
353 if (width*height*depth < 1)
355 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: width, height or depth is less than 1";
358 if (width > DPSOFTRAST_TEXTURE_MAXSIZE || height > DPSOFTRAST_TEXTURE_MAXSIZE || depth > DPSOFTRAST_TEXTURE_MAXSIZE)
360 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: texture size is too large";
365 case DPSOFTRAST_TEXTURE_FORMAT_BGRA8:
366 case DPSOFTRAST_TEXTURE_FORMAT_RGBA8:
367 case DPSOFTRAST_TEXTURE_FORMAT_ALPHA8:
369 case DPSOFTRAST_TEXTURE_FORMAT_DEPTH:
370 if (flags & DPSOFTRAST_TEXTURE_FLAG_CUBEMAP)
372 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FORMAT_DEPTH only permitted on 2D textures";
377 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FORMAT_DEPTH only permitted on 2D textures";
380 if ((flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP) && (texformat == DPSOFTRAST_TEXTURE_FORMAT_DEPTH))
382 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FORMAT_DEPTH does not permit mipmaps";
387 if (depth != 1 && (flags & DPSOFTRAST_TEXTURE_FLAG_CUBEMAP))
389 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FLAG_CUBEMAP can not be used on 3D textures";
392 if (depth != 1 && (flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP))
394 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FLAG_MIPMAP can not be used on 3D textures";
397 if (depth != 1 && (flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP))
399 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FLAG_MIPMAP can not be used on 3D textures";
402 if ((flags & DPSOFTRAST_TEXTURE_FLAG_CUBEMAP) && (flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP))
404 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: DPSOFTRAST_TEXTURE_FLAG_MIPMAP can not be used on cubemap textures";
407 if ((width & (width-1)) || (height & (height-1)) || (depth & (depth-1)))
409 dpsoftrast.errorstring = "DPSOFTRAST_Texture_New: dimensions are not power of two";
412 // find first empty slot in texture array
413 for (texnum = dpsoftrast.texture_firstfree;texnum < dpsoftrast.texture_end;texnum++)
414 if (!dpsoftrast.texture[texnum].bytes)
416 dpsoftrast.texture_firstfree = texnum + 1;
417 if (dpsoftrast.texture_max <= texnum)
419 // expand texture array as needed
420 if (dpsoftrast.texture_max < 1024)
421 dpsoftrast.texture_max = 1024;
423 dpsoftrast.texture_max *= 2;
424 dpsoftrast.texture = (DPSOFTRAST_Texture *)realloc(dpsoftrast.texture, dpsoftrast.texture_max * sizeof(DPSOFTRAST_Texture));
426 if (dpsoftrast.texture_end <= texnum)
427 dpsoftrast.texture_end = texnum + 1;
428 texture = &dpsoftrast.texture[texnum];
429 memset(texture, 0, sizeof(*texture));
430 texture->flags = flags;
431 texture->width = width;
432 texture->height = height;
433 texture->depth = depth;
434 texture->sides = sides;
445 s = w * h * d * sides * 4;
446 texture->mipmap[mipmaps][0] = size;
447 texture->mipmap[mipmaps][1] = s;
448 texture->mipmap[mipmaps][2] = w;
449 texture->mipmap[mipmaps][3] = h;
450 texture->mipmap[mipmaps][4] = d;
453 if (w * h * d == 1 || !(flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP))
459 texture->mipmaps = mipmaps;
460 texture->size = size;
462 // allocate the pixels now
463 texture->bytes = (unsigned char *)calloc(1, size);
467 void DPSOFTRAST_Texture_Free(int index)
469 DPSOFTRAST_Texture *texture;
470 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
472 free(texture->bytes);
473 texture->bytes = NULL;
474 memset(texture, 0, sizeof(*texture));
475 // adjust the free range and used range
476 if (dpsoftrast.texture_firstfree > index)
477 dpsoftrast.texture_firstfree = index;
478 while (dpsoftrast.texture_end > 0 && dpsoftrast.texture[dpsoftrast.texture_end-1].bytes == NULL)
479 dpsoftrast.texture_end--;
481 void DPSOFTRAST_Texture_CalculateMipmaps(int index)
483 int i, x, y, z, w, layer0, layer1, row0, row1;
484 unsigned char *o, *i0, *i1, *i2, *i3;
485 DPSOFTRAST_Texture *texture;
486 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
487 if (texture->mipmaps <= 1)
489 for (i = 1;i < texture->mipmaps;i++)
491 for (z = 0;z < texture->mipmap[i][4];z++)
495 if (layer1 >= texture->mipmap[i-1][4])
496 layer1 = texture->mipmap[i-1][4]-1;
497 for (y = 0;y < texture->mipmap[i][3];y++)
501 if (row1 >= texture->mipmap[i-1][3])
502 row1 = texture->mipmap[i-1][3]-1;
503 o = texture->bytes + texture->mipmap[i ][0] + 4*((texture->mipmap[i ][3] * z + y ) * texture->mipmap[i ][2]);
504 i0 = texture->bytes + texture->mipmap[i-1][0] + 4*((texture->mipmap[i-1][3] * layer0 + row0) * texture->mipmap[i-1][2]);
505 i1 = texture->bytes + texture->mipmap[i-1][0] + 4*((texture->mipmap[i-1][3] * layer0 + row1) * texture->mipmap[i-1][2]);
506 i2 = texture->bytes + texture->mipmap[i-1][0] + 4*((texture->mipmap[i-1][3] * layer1 + row0) * texture->mipmap[i-1][2]);
507 i3 = texture->bytes + texture->mipmap[i-1][0] + 4*((texture->mipmap[i-1][3] * layer1 + row1) * texture->mipmap[i-1][2]);
508 w = texture->mipmap[i][2];
511 if (texture->mipmap[i-1][2] > 1)
513 // average 3D texture
514 for (x = 0;x < w;x++, o += 4, i0 += 8, i1 += 8, i2 += 8, i3 += 8)
516 o[0] = (i0[0] + i0[4] + i1[0] + i1[4] + i2[0] + i2[4] + i3[0] + i3[4] + 4) >> 3;
517 o[1] = (i0[1] + i0[5] + i1[1] + i1[5] + i2[1] + i2[5] + i3[1] + i3[5] + 4) >> 3;
518 o[2] = (i0[2] + i0[6] + i1[2] + i1[6] + i2[2] + i2[6] + i3[2] + i3[6] + 4) >> 3;
519 o[3] = (i0[3] + i0[7] + i1[3] + i1[7] + i2[3] + i2[7] + i3[3] + i3[7] + 4) >> 3;
524 // average 3D mipmap with parent width == 1
525 for (x = 0;x < w;x++, o += 4, i0 += 8, i1 += 8)
527 o[0] = (i0[0] + i1[0] + i2[0] + i3[0] + 2) >> 2;
528 o[1] = (i0[1] + i1[1] + i2[1] + i3[1] + 2) >> 2;
529 o[2] = (i0[2] + i1[2] + i2[2] + i3[2] + 2) >> 2;
530 o[3] = (i0[3] + i1[3] + i2[3] + i3[3] + 2) >> 2;
536 if (texture->mipmap[i-1][2] > 1)
538 // average 2D texture (common case)
539 for (x = 0;x < w;x++, o += 4, i0 += 8, i1 += 8)
541 o[0] = (i0[0] + i0[4] + i1[0] + i1[4] + 2) >> 2;
542 o[1] = (i0[1] + i0[5] + i1[1] + i1[5] + 2) >> 2;
543 o[2] = (i0[2] + i0[6] + i1[2] + i1[6] + 2) >> 2;
544 o[3] = (i0[3] + i0[7] + i1[3] + i1[7] + 2) >> 2;
549 // 2D texture with parent width == 1
550 o[0] = (i0[0] + i1[0] + 1) >> 1;
551 o[1] = (i0[1] + i1[1] + 1) >> 1;
552 o[2] = (i0[2] + i1[2] + 1) >> 1;
553 o[3] = (i0[3] + i1[3] + 1) >> 1;
560 void DPSOFTRAST_Texture_UpdatePartial(int index, int mip, const unsigned char *pixels, int blockx, int blocky, int blockwidth, int blockheight)
562 DPSOFTRAST_Texture *texture;
563 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
567 dpsoftrast.errorstring = "DPSOFTRAST_Texture_UpdatePartial: Not implemented.";
569 void DPSOFTRAST_Texture_UpdateFull(int index, const unsigned char *pixels)
571 DPSOFTRAST_Texture *texture;
572 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
574 memcpy(texture->bytes, pixels, texture->mipmap[0][1]);
575 DPSOFTRAST_Texture_CalculateMipmaps(index);
577 int DPSOFTRAST_Texture_GetWidth(int index, int mip)
579 DPSOFTRAST_Texture *texture;
580 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return 0;
581 return texture->mipmap[mip][2];
583 int DPSOFTRAST_Texture_GetHeight(int index, int mip)
585 DPSOFTRAST_Texture *texture;
586 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return 0;
587 return texture->mipmap[mip][3];
589 int DPSOFTRAST_Texture_GetDepth(int index, int mip)
591 DPSOFTRAST_Texture *texture;
592 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return 0;
593 return texture->mipmap[mip][4];
595 unsigned char *DPSOFTRAST_Texture_GetPixelPointer(int index, int mip)
597 DPSOFTRAST_Texture *texture;
598 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return 0;
599 return texture->bytes + texture->mipmap[mip][0];
601 void DPSOFTRAST_Texture_Filter(int index, DPSOFTRAST_TEXTURE_FILTER filter)
603 DPSOFTRAST_Texture *texture;
604 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
605 if (!(texture->flags & DPSOFTRAST_TEXTURE_FLAG_MIPMAP) && filter > DPSOFTRAST_TEXTURE_FILTER_LINEAR)
607 dpsoftrast.errorstring = "DPSOFTRAST_Texture_Filter: requested filter mode requires mipmaps";
610 texture->filter = filter;
613 void DPSOFTRAST_SetRenderTargets(int width, int height, unsigned int *depthpixels, unsigned int *colorpixels0, unsigned int *colorpixels1, unsigned int *colorpixels2, unsigned int *colorpixels3)
615 dpsoftrast.fb_width = width;
616 dpsoftrast.fb_height = height;
617 dpsoftrast.fb_depthpixels = depthpixels;
618 dpsoftrast.fb_colorpixels[0] = colorpixels0;
619 dpsoftrast.fb_colorpixels[1] = colorpixels1;
620 dpsoftrast.fb_colorpixels[2] = colorpixels2;
621 dpsoftrast.fb_colorpixels[3] = colorpixels3;
623 void DPSOFTRAST_Viewport(int x, int y, int width, int height)
625 dpsoftrast.user.viewport[0] = x;
626 dpsoftrast.user.viewport[1] = y;
627 dpsoftrast.user.viewport[2] = width;
628 dpsoftrast.user.viewport[3] = height;
629 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_FB;
631 void DPSOFTRAST_ClearColor(float r, float g, float b, float a)
633 int i, x1, y1, x2, y2, w, h, x, y;
636 DPSOFTRAST_Validate(DPSOFTRAST_VALIDATE_FB);
637 x1 = dpsoftrast.fb_clearscissor[0];
638 y1 = dpsoftrast.fb_clearscissor[1];
639 x2 = dpsoftrast.fb_clearscissor[2];
640 y2 = dpsoftrast.fb_clearscissor[1] + dpsoftrast.fb_clearscissor[3];
645 // FIXME: honor dpsoftrast.fb_colormask?
646 c = DPSOFTRAST_BGRA8_FROM_RGBA32F(r,g,b,a);
647 for (i = 0;i < 4;i++)
649 if (!dpsoftrast.fb_colorpixels[i])
651 for (y = y1;y < y2;y++)
653 p = dpsoftrast.fb_colorpixels[i] + y * dpsoftrast.fb_width;
654 for (x = x1;x < x2;x++)
659 void DPSOFTRAST_ClearDepth(float d)
661 int x1, y1, x2, y2, w, h, x, y;
664 DPSOFTRAST_Validate(DPSOFTRAST_VALIDATE_FB);
665 x1 = dpsoftrast.fb_clearscissor[0];
666 y1 = dpsoftrast.fb_clearscissor[1];
667 x2 = dpsoftrast.fb_clearscissor[2];
668 y2 = dpsoftrast.fb_clearscissor[1] + dpsoftrast.fb_clearscissor[3];
673 c = DPSOFTRAST_DEPTH32_FROM_DEPTH32F(d);
674 for (y = y1;y < y2;y++)
676 p = dpsoftrast.fb_depthpixels + y * dpsoftrast.fb_width;
677 for (x = x1;x < x2;x++)
681 void DPSOFTRAST_ColorMask(int r, int g, int b, int a)
683 dpsoftrast.user.colormask[0] = r != 0;
684 dpsoftrast.user.colormask[1] = g != 0;
685 dpsoftrast.user.colormask[2] = b != 0;
686 dpsoftrast.user.colormask[3] = a != 0;
687 dpsoftrast.fb_colormask = ((-dpsoftrast.user.colormask[0]) & 0x00FF0000) | ((-dpsoftrast.user.colormask[1]) & 0x0000FF00) | ((-dpsoftrast.user.colormask[2]) & 0x000000FF) | ((-dpsoftrast.user.colormask[3]) & 0xFF000000);
689 void DPSOFTRAST_DepthTest(int enable)
691 dpsoftrast.user.depthtest = enable;
692 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_DEPTHFUNC;
694 void DPSOFTRAST_ScissorTest(int enable)
696 dpsoftrast.user.scissortest = enable;
697 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_FB;
699 void DPSOFTRAST_Scissor(float x, float y, float width, float height)
701 dpsoftrast.user.scissor[0] = x;
702 dpsoftrast.user.scissor[1] = y;
703 dpsoftrast.user.scissor[2] = width;
704 dpsoftrast.user.scissor[3] = height;
705 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_FB;
708 void DPSOFTRAST_BlendFunc(int smodulate, int dmodulate)
711 dpsoftrast.user.blendfunc[0] = smodulate;
712 dpsoftrast.user.blendfunc[1] = dmodulate;
713 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_BLENDFUNC;
715 void DPSOFTRAST_BlendSubtract(int enable)
717 dpsoftrast.user.blendsubtract = enable != 0;
718 dpsoftrast.validate |= DPSOFTRAST_VALIDATE_BLENDFUNC;
720 void DPSOFTRAST_DepthMask(int enable)
722 dpsoftrast.user.depthmask = enable;
724 void DPSOFTRAST_DepthFunc(int comparemode)
727 dpsoftrast.user.depthfunc = comparemode;
729 void DPSOFTRAST_DepthRange(float range0, float range1)
731 dpsoftrast.user.depthrange[0] = range0;
732 dpsoftrast.user.depthrange[1] = range1;
734 void DPSOFTRAST_PolygonOffset(float alongnormal, float intoview)
736 dpsoftrast.user.polygonoffset[0] = alongnormal;
737 dpsoftrast.user.polygonoffset[1] = intoview;
739 void DPSOFTRAST_CullFace(int mode)
742 dpsoftrast.user.cullface = mode;
744 void DPSOFTRAST_AlphaTest(float enable)
746 dpsoftrast.user.alphatest = enable;
748 void DPSOFTRAST_AlphaFunc(int alphafunc, float alphavalue)
751 dpsoftrast.user.alphafunc = alphafunc;
752 dpsoftrast.user.alphavalue = alphavalue;
754 void DPSOFTRAST_Color4f(float r, float g, float b, float a)
756 dpsoftrast.user.color[0] = r;
757 dpsoftrast.user.color[1] = g;
758 dpsoftrast.user.color[2] = b;
759 dpsoftrast.user.color[3] = a;
761 void DPSOFTRAST_GetPixelsBGRA(int blockx, int blocky, int blockwidth, int blockheight, unsigned char *outpixels)
763 int outstride = blockwidth * 4;
764 int instride = dpsoftrast.fb_width * 4;
767 int bx2 = blockx + blockwidth;
768 int by2 = blocky + blockheight;
773 unsigned char *inpixels;
776 if (bx1 < 0) bx1 = 0;
777 if (by1 < 0) by1 = 0;
778 if (bx2 > dpsoftrast.fb_width) bx2 = dpsoftrast.fb_width;
779 if (by2 > dpsoftrast.fb_height) by2 = dpsoftrast.fb_height;
782 inpixels = (unsigned char *)dpsoftrast.fb_colorpixels[0];
783 if (dpsoftrast.bigendian)
785 for (y = by1;y < by2;y++)
787 b = (unsigned char *)inpixels + (dpsoftrast.fb_height - 1 - y) * instride + 4 * bx1;
788 o = (unsigned char *)outpixels + (y - by1) * outstride;
789 for (x = bx1;x < bx2;x++)
802 for (y = by1;y < by2;y++)
804 b = (unsigned char *)inpixels + (dpsoftrast.fb_height - 1 - y) * instride + 4 * bx1;
805 o = (unsigned char *)outpixels + (y - by1) * outstride;
811 void DPSOFTRAST_CopyRectangleToTexture(int index, int mip, int tx, int ty, int sx, int sy, int width, int height)
815 int tx2 = tx + width;
816 int ty2 = ty + height;
819 int sx2 = sx + width;
820 int sy2 = sy + height;
830 unsigned int *spixels;
831 unsigned int *tpixels;
832 DPSOFTRAST_Texture *texture;
833 texture = DPSOFTRAST_Texture_GetByIndex(index);if (!texture) return;
834 if (mip < 0 || mip >= texture->mipmaps) return;
835 spixels = dpsoftrast.fb_colorpixels[0];
836 swidth = dpsoftrast.fb_width;
837 sheight = dpsoftrast.fb_height;
838 tpixels = (unsigned int *)(texture->bytes + texture->mipmap[mip][0]);
839 twidth = texture->mipmap[mip][2];
840 theight = texture->mipmap[mip][3];
841 if (tx1 < 0) tx1 = 0;
842 if (ty1 < 0) ty1 = 0;
843 if (tx2 > twidth) tx2 = twidth;
844 if (ty2 > theight) ty2 = theight;
845 if (sx1 < 0) sx1 = 0;
846 if (sy1 < 0) sy1 = 0;
847 if (sx2 > swidth) sx2 = swidth;
848 if (sy2 > sheight) sy2 = sheight;
853 if (tw > sw) tw = sw;
854 if (th > sh) th = sh;
855 if (tw < 1 || th < 1)
857 for (y = 0;y < th;y++)
858 memcpy(tpixels + ((ty1 + y) * twidth + tx1), spixels + ((sy1 + y) * swidth + sx1), tw*4);
859 if (texture->mipmaps > 1)
860 DPSOFTRAST_Texture_CalculateMipmaps(index);
862 void DPSOFTRAST_SetTexture(int unitnum, int index)
864 DPSOFTRAST_Texture *texture;
865 if (unitnum < 0 || unitnum >= DPSOFTRAST_MAXTEXTUREUNITS)
867 dpsoftrast.errorstring = "DPSOFTRAST_SetTexture: invalid unit number";
870 texture = DPSOFTRAST_Texture_GetByIndex(index);
871 if (index && !texture)
873 dpsoftrast.errorstring = "DPSOFTRAST_SetTexture: invalid texture handle";
876 dpsoftrast.texbound[unitnum] = texture;
879 void DPSOFTRAST_SetVertexPointer(const float *vertex3f, size_t stride)
881 dpsoftrast.pointer_vertex3f = vertex3f;
882 dpsoftrast.stride_vertex = stride;
884 void DPSOFTRAST_SetColorPointer(const float *color4f, size_t stride)
886 dpsoftrast.pointer_color4f = color4f;
887 dpsoftrast.pointer_color4ub = NULL;
888 dpsoftrast.stride_color = stride;
890 void DPSOFTRAST_SetColorPointer4ub(const unsigned char *color4ub, size_t stride)
892 dpsoftrast.pointer_color4f = NULL;
893 dpsoftrast.pointer_color4ub = color4ub;
894 dpsoftrast.stride_color = stride;
896 void DPSOFTRAST_SetTexCoordPointer(int unitnum, int numcomponents, size_t stride, const float *texcoordf)
898 dpsoftrast.pointer_texcoordf[unitnum] = texcoordf;
899 dpsoftrast.components_texcoord[unitnum] = numcomponents;
900 dpsoftrast.stride_texcoord[unitnum] = stride;
903 void DPSOFTRAST_SetShader(unsigned int mode, unsigned int permutation)
905 dpsoftrast.shader_mode = mode;
906 dpsoftrast.shader_permutation = permutation;
908 void DPSOFTRAST_Uniform4fARB(DPSOFTRAST_UNIFORM index, float v0, float v1, float v2, float v3)
910 dpsoftrast.uniform4f[index*4+0] = v0;
911 dpsoftrast.uniform4f[index*4+1] = v1;
912 dpsoftrast.uniform4f[index*4+2] = v2;
913 dpsoftrast.uniform4f[index*4+3] = v3;
915 void DPSOFTRAST_Uniform4fvARB(DPSOFTRAST_UNIFORM index, const float *v)
917 dpsoftrast.uniform4f[index*4+0] = v[0];
918 dpsoftrast.uniform4f[index*4+1] = v[1];
919 dpsoftrast.uniform4f[index*4+2] = v[2];
920 dpsoftrast.uniform4f[index*4+3] = v[3];
922 void DPSOFTRAST_UniformMatrix4fvARB(DPSOFTRAST_UNIFORM index, int arraysize, int transpose, const float *v)
925 for (i = 0;i < arraysize;i++, index += 4, v += 16)
929 dpsoftrast.uniform4f[index*4+0] = v[0];
930 dpsoftrast.uniform4f[index*4+1] = v[4];
931 dpsoftrast.uniform4f[index*4+2] = v[8];
932 dpsoftrast.uniform4f[index*4+3] = v[12];
933 dpsoftrast.uniform4f[index*4+4] = v[1];
934 dpsoftrast.uniform4f[index*4+5] = v[5];
935 dpsoftrast.uniform4f[index*4+6] = v[9];
936 dpsoftrast.uniform4f[index*4+7] = v[13];
937 dpsoftrast.uniform4f[index*4+8] = v[2];
938 dpsoftrast.uniform4f[index*4+9] = v[6];
939 dpsoftrast.uniform4f[index*4+10] = v[10];
940 dpsoftrast.uniform4f[index*4+11] = v[14];
941 dpsoftrast.uniform4f[index*4+12] = v[3];
942 dpsoftrast.uniform4f[index*4+13] = v[7];
943 dpsoftrast.uniform4f[index*4+14] = v[11];
944 dpsoftrast.uniform4f[index*4+15] = v[15];
948 dpsoftrast.uniform4f[index*4+0] = v[0];
949 dpsoftrast.uniform4f[index*4+1] = v[1];
950 dpsoftrast.uniform4f[index*4+2] = v[2];
951 dpsoftrast.uniform4f[index*4+3] = v[3];
952 dpsoftrast.uniform4f[index*4+4] = v[4];
953 dpsoftrast.uniform4f[index*4+5] = v[5];
954 dpsoftrast.uniform4f[index*4+6] = v[6];
955 dpsoftrast.uniform4f[index*4+7] = v[7];
956 dpsoftrast.uniform4f[index*4+8] = v[8];
957 dpsoftrast.uniform4f[index*4+9] = v[9];
958 dpsoftrast.uniform4f[index*4+10] = v[10];
959 dpsoftrast.uniform4f[index*4+11] = v[11];
960 dpsoftrast.uniform4f[index*4+12] = v[12];
961 dpsoftrast.uniform4f[index*4+13] = v[13];
962 dpsoftrast.uniform4f[index*4+14] = v[14];
963 dpsoftrast.uniform4f[index*4+15] = v[15];
967 void DPSOFTRAST_Uniform1iARB(DPSOFTRAST_UNIFORM index, int i0)
969 dpsoftrast.uniform1i[index] = i0;
972 void DPSOFTRAST_Draw_LoadVertices(int firstvertex, int numvertices, bool needcolors)
980 const unsigned char *b;
981 dpsoftrast.draw.numvertices = numvertices;
982 if (dpsoftrast.draw.maxvertices < dpsoftrast.draw.numvertices)
984 if (dpsoftrast.draw.maxvertices < 4096)
985 dpsoftrast.draw.maxvertices = 4096;
986 while (dpsoftrast.draw.maxvertices < dpsoftrast.draw.numvertices)
987 dpsoftrast.draw.maxvertices *= 2;
988 if (dpsoftrast.draw.in_array4f[0])
989 free(dpsoftrast.draw.in_array4f[0]);
990 data = (float *)calloc(1, dpsoftrast.draw.maxvertices * sizeof(float[4])*(DPSOFTRAST_ARRAY_TOTAL*2 + 1));
991 for (i = 0;i < DPSOFTRAST_ARRAY_TOTAL;i++, data += dpsoftrast.draw.maxvertices * 4)
992 dpsoftrast.draw.in_array4f[i] = data;
993 for (i = 0;i < DPSOFTRAST_ARRAY_TOTAL;i++, data += dpsoftrast.draw.maxvertices * 4)
994 dpsoftrast.draw.post_array4f[i] = data;
995 dpsoftrast.draw.screencoord4f = data;
996 data += dpsoftrast.draw.maxvertices * 4;
998 stride = dpsoftrast.stride_vertex;
999 v = (const float *)((unsigned char *)dpsoftrast.pointer_vertex3f + firstvertex * stride);
1000 p = dpsoftrast.draw.in_array4f[0];
1001 for (i = 0;i < numvertices;i++)
1008 v = (const float *)((const unsigned char *)v + stride);
1012 if (dpsoftrast.pointer_color4f)
1014 stride = dpsoftrast.stride_color;
1015 v = (const float *)((const unsigned char *)dpsoftrast.pointer_color4f + firstvertex * stride);
1016 p = dpsoftrast.draw.in_array4f[1];
1017 for (i = 0;i < numvertices;i++)
1024 v = (const float *)((const unsigned char *)v + stride);
1027 else if (dpsoftrast.pointer_color4ub)
1029 stride = dpsoftrast.stride_color;
1030 b = (const unsigned char *)((const unsigned char *)dpsoftrast.pointer_color4ub + firstvertex * stride);
1031 p = dpsoftrast.draw.in_array4f[1];
1032 for (i = 0;i < numvertices;i++)
1034 p[0] = b[0] * (1.0f / 255.0f);
1035 p[1] = b[1] * (1.0f / 255.0f);
1036 p[2] = b[2] * (1.0f / 255.0f);
1037 p[3] = b[3] * (1.0f / 255.0f);
1039 b = (const unsigned char *)((const unsigned char *)b + stride);
1044 v = dpsoftrast.user.color;
1045 p = dpsoftrast.draw.in_array4f[1];
1046 for (i = 0;i < numvertices;i++)
1056 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL-2;j++)
1058 if (dpsoftrast.pointer_texcoordf[j])
1060 stride = dpsoftrast.stride_texcoord[j];
1061 v = (const float *)((const unsigned char *)dpsoftrast.pointer_texcoordf[j] + firstvertex * stride);
1062 p = dpsoftrast.draw.in_array4f[j+2];
1063 switch(dpsoftrast.components_texcoord[j])
1066 for (i = 0;i < numvertices;i++)
1073 v = (const float *)((const unsigned char *)v + stride);
1077 for (i = 0;i < numvertices;i++)
1084 v = (const float *)((const unsigned char *)v + stride);
1088 for (i = 0;i < numvertices;i++)
1095 v = (const float *)((const unsigned char *)v + stride);
1103 void DPSOFTRAST_Array_Transform(float *out4f, const float *in4f, int numitems, const float *inmatrix16f)
1105 static const float identitymatrix[4][4] = {{1,0,0,0},{0,1,0,0},{0,0,1,0},{0,0,0,1}};
1109 memcpy(matrix, inmatrix16f, sizeof(float[16]));
1110 if (!memcmp(identitymatrix, matrix, sizeof(float[16])))
1112 // fast case for identity matrix
1113 memcpy(out4f, in4f, numitems * sizeof(float[4]));
1116 for (i = 0;i < numitems;i++, out4f += 4, in4f += 4)
1118 out4f[0] = in4f[0] * matrix[0][0] + in4f[1] * matrix[1][0] + in4f[2] * matrix[2][0] + in4f[3] * matrix[3][0];
1119 out4f[1] = in4f[0] * matrix[0][1] + in4f[1] * matrix[1][1] + in4f[2] * matrix[2][1] + in4f[3] * matrix[3][1];
1120 out4f[2] = in4f[0] * matrix[0][2] + in4f[1] * matrix[1][2] + in4f[2] * matrix[2][2] + in4f[3] * matrix[3][2];
1121 out4f[3] = in4f[0] * matrix[0][3] + in4f[1] * matrix[1][3] + in4f[2] * matrix[2][3] + in4f[3] * matrix[3][3];
1125 void DPSOFTRAST_Array_Copy(float *out4f, const float *in4f, int numitems)
1127 memcpy(out4f, in4f, numitems * sizeof(float[4]));
1130 void DPSOFTRAST_Draw_ProjectVertices(float *out4f, const float *in4f, int numitems)
1132 // NOTE: this is used both as a whole mesh transform function and a
1133 // per-triangle transform function (for clipped triangles), accordingly
1134 // it should not crash on divide by 0 but the result of divide by 0 is
1139 float viewportcenter[4];
1140 float viewportscale[4];
1141 viewportscale[0] = dpsoftrast.fb_viewportscale[0];
1142 viewportscale[1] = dpsoftrast.fb_viewportscale[1];
1143 viewportscale[2] = 0.5f;
1144 viewportscale[3] = 0.0f;
1145 viewportcenter[0] = dpsoftrast.fb_viewportcenter[0];
1146 viewportcenter[1] = dpsoftrast.fb_viewportcenter[1];
1147 viewportcenter[2] = 0.5f;
1148 viewportcenter[3] = 0.0f;
1149 for (i = 0;i < numitems;i++)
1160 out4f[0] = viewportcenter[0] + viewportscale[0] * in4f[0] * w;
1161 out4f[1] = viewportcenter[1] + viewportscale[1] * in4f[1] * w;
1162 out4f[2] = viewportcenter[2] + viewportscale[2] * in4f[2] * w;
1163 out4f[3] = viewportcenter[3] + viewportscale[3] * in4f[3] * w;
1170 void DPSOFTRAST_Draw_DebugEdgePoints(const float *screen0, const float *screen1)
1175 int w = dpsoftrast.fb_width;
1178 unsigned int *pixels = dpsoftrast.fb_colorpixels[0];
1180 bounds[0] = dpsoftrast.fb_viewportscissor[0];
1181 bounds[1] = dpsoftrast.fb_viewportscissor[1];
1182 bounds[2] = dpsoftrast.fb_viewportscissor[0] + dpsoftrast.fb_viewportscissor[2];
1183 bounds[3] = dpsoftrast.fb_viewportscissor[1] + dpsoftrast.fb_viewportscissor[3];
1188 for (i = 0;i <= 128;i++)
1191 //if (dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+3] != 1.0f)
1193 x = (int)(v0[0] + (v1[0] - v0[0]) * (i/128.0f));
1194 y = (int)(v0[1] + (v1[1] - v0[1]) * (i/128.0f));
1195 if (x < bounds[0] || y < bounds[1] || x >= bounds[2] || y >= bounds[3])
1197 //c4f = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_COLOR] + element0*4;
1198 //pixels[y*w+x] = DPSOFTRAST_BGRA8_FROM_RGBA32F(c4f[0], c4f[1], c4f[2], c4f[3]);
1199 pixels[y*w+x] = 0xFFFFFFFF;
1203 void DPSOFTRAST_Draw_Span_Begin(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *zf)
1206 int startx = span->startx;
1207 int endx = span->endx;
1208 float w = span->data[0][DPSOFTRAST_ARRAY_TOTAL][3];
1209 float wslope = span->data[1][DPSOFTRAST_ARRAY_TOTAL][3];
1210 for (x = startx;x < endx;)
1212 int endsub = x + DPSOFTRAST_MAXSUBSPAN-1;
1213 float z = 1.0f / (w + wslope * x), dz;
1217 dz = endsub > x ? (1.0f / (w + wslope * endsub) - z) / (endsub - x) : 0.0f;
1221 dz = (1.0f / (w + wslope * endsub) - z) * (1.0f / (DPSOFTRAST_MAXSUBSPAN-1));
1223 for (; x <= endsub; x++, z += dz)
1228 void DPSOFTRAST_Draw_Span_Finish(const DPSOFTRAST_State_Draw_Span * RESTRICT span, const float * RESTRICT in4f)
1231 int startx = span->startx;
1232 int endx = span->endx;
1235 unsigned char * RESTRICT pixelmask = span->pixelmask;
1236 unsigned char * RESTRICT pixel = (unsigned char *)dpsoftrast.fb_colorpixels[0];
1239 pixel += span->start * 4;
1240 // handle alphatest now (this affects depth writes too)
1241 if (dpsoftrast.user.alphatest)
1242 for (x = startx;x < endx;x++)
1243 if (in4f[x*4+3] < 0.5f)
1244 pixelmask[x] = false;
1245 // FIXME: this does not handle bigendian
1246 switch(dpsoftrast.fb_blendmode)
1248 case DPSOFTRAST_BLENDMODE_OPAQUE:
1249 for (x = startx;x < endx;x++)
1253 d[0] = (int)(in4f[x*4+2]*255.0f);if (d[0] > 255) d[0] = 255;
1254 d[1] = (int)(in4f[x*4+1]*255.0f);if (d[1] > 255) d[1] = 255;
1255 d[2] = (int)(in4f[x*4+0]*255.0f);if (d[2] > 255) d[2] = 255;
1256 d[3] = (int)(in4f[x*4+3]*255.0f);if (d[3] > 255) d[3] = 255;
1257 pixel[x*4+0] = d[0];
1258 pixel[x*4+1] = d[1];
1259 pixel[x*4+2] = d[2];
1260 pixel[x*4+3] = d[3];
1263 case DPSOFTRAST_BLENDMODE_ALPHA:
1264 for (x = startx;x < endx;x++)
1268 a = in4f[x*4+3] * 255.0f;
1269 b = 1.0f - in4f[x*4+3];
1270 d[0] = (int)(in4f[x*4+2]*a+pixel[x*4+0]*b);if (d[0] > 255) d[0] = 255;
1271 d[1] = (int)(in4f[x*4+1]*a+pixel[x*4+1]*b);if (d[1] > 255) d[1] = 255;
1272 d[2] = (int)(in4f[x*4+0]*a+pixel[x*4+2]*b);if (d[2] > 255) d[2] = 255;
1273 d[3] = (int)(in4f[x*4+3]*a+pixel[x*4+3]*b);if (d[3] > 255) d[3] = 255;
1274 pixel[x*4+0] = d[0];
1275 pixel[x*4+1] = d[1];
1276 pixel[x*4+2] = d[2];
1277 pixel[x*4+3] = d[3];
1280 case DPSOFTRAST_BLENDMODE_ADDALPHA:
1281 for (x = startx;x < endx;x++)
1285 a = in4f[x*4+3] * 255.0f;
1286 d[0] = (int)(in4f[x*4+2]*a+pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1287 d[1] = (int)(in4f[x*4+1]*a+pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1288 d[2] = (int)(in4f[x*4+0]*a+pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1289 d[3] = (int)(in4f[x*4+3]*a+pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1290 pixel[x*4+0] = d[0];
1291 pixel[x*4+1] = d[1];
1292 pixel[x*4+2] = d[2];
1293 pixel[x*4+3] = d[3];
1296 case DPSOFTRAST_BLENDMODE_ADD:
1297 for (x = startx;x < endx;x++)
1301 d[0] = (int)(in4f[x*4+2]*255.0f+pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1302 d[1] = (int)(in4f[x*4+1]*255.0f+pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1303 d[2] = (int)(in4f[x*4+0]*255.0f+pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1304 d[3] = (int)(in4f[x*4+3]*255.0f+pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1305 pixel[x*4+0] = d[0];
1306 pixel[x*4+1] = d[1];
1307 pixel[x*4+2] = d[2];
1308 pixel[x*4+3] = d[3];
1311 case DPSOFTRAST_BLENDMODE_INVMOD:
1312 for (x = startx;x < endx;x++)
1316 d[0] = (int)((1.0f-in4f[x*4+2])*pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1317 d[1] = (int)((1.0f-in4f[x*4+1])*pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1318 d[2] = (int)((1.0f-in4f[x*4+0])*pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1319 d[3] = (int)((1.0f-in4f[x*4+3])*pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1320 pixel[x*4+0] = d[0];
1321 pixel[x*4+1] = d[1];
1322 pixel[x*4+2] = d[2];
1323 pixel[x*4+3] = d[3];
1326 case DPSOFTRAST_BLENDMODE_MUL:
1327 for (x = startx;x < endx;x++)
1331 d[0] = (int)(in4f[x*4+2]*pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1332 d[1] = (int)(in4f[x*4+1]*pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1333 d[2] = (int)(in4f[x*4+0]*pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1334 d[3] = (int)(in4f[x*4+3]*pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1335 pixel[x*4+0] = d[0];
1336 pixel[x*4+1] = d[1];
1337 pixel[x*4+2] = d[2];
1338 pixel[x*4+3] = d[3];
1341 case DPSOFTRAST_BLENDMODE_MUL2:
1342 for (x = startx;x < endx;x++)
1346 d[0] = (int)(in4f[x*4+2]*pixel[x*4+0]*2.0f);if (d[0] > 255) d[0] = 255;
1347 d[1] = (int)(in4f[x*4+1]*pixel[x*4+1]*2.0f);if (d[1] > 255) d[1] = 255;
1348 d[2] = (int)(in4f[x*4+0]*pixel[x*4+2]*2.0f);if (d[2] > 255) d[2] = 255;
1349 d[3] = (int)(in4f[x*4+3]*pixel[x*4+3]*2.0f);if (d[3] > 255) d[3] = 255;
1350 pixel[x*4+0] = d[0];
1351 pixel[x*4+1] = d[1];
1352 pixel[x*4+2] = d[2];
1353 pixel[x*4+3] = d[3];
1356 case DPSOFTRAST_BLENDMODE_SUBALPHA:
1357 for (x = startx;x < endx;x++)
1361 a = in4f[x*4+3] * -255.0f;
1362 d[0] = (int)(in4f[x*4+2]*a+pixel[x*4+0]);if (d[0] > 255) d[0] = 255;if (d[0] < 0) d[0] = 0;
1363 d[1] = (int)(in4f[x*4+1]*a+pixel[x*4+1]);if (d[1] > 255) d[1] = 255;if (d[1] < 0) d[1] = 0;
1364 d[2] = (int)(in4f[x*4+0]*a+pixel[x*4+2]);if (d[2] > 255) d[2] = 255;if (d[2] < 0) d[2] = 0;
1365 d[3] = (int)(in4f[x*4+3]*a+pixel[x*4+3]);if (d[3] > 255) d[3] = 255;if (d[3] < 0) d[3] = 0;
1366 pixel[x*4+0] = d[0];
1367 pixel[x*4+1] = d[1];
1368 pixel[x*4+2] = d[2];
1369 pixel[x*4+3] = d[3];
1372 case DPSOFTRAST_BLENDMODE_PSEUDOALPHA:
1373 for (x = startx;x < endx;x++)
1378 b = 1.0f - in4f[x*4+3];
1379 d[0] = (int)(in4f[x*4+2]*a+pixel[x*4+0]*b);if (d[0] > 255) d[0] = 255;
1380 d[1] = (int)(in4f[x*4+1]*a+pixel[x*4+1]*b);if (d[1] > 255) d[1] = 255;
1381 d[2] = (int)(in4f[x*4+0]*a+pixel[x*4+2]*b);if (d[2] > 255) d[2] = 255;
1382 d[3] = (int)(in4f[x*4+3]*a+pixel[x*4+3]*b);if (d[3] > 255) d[3] = 255;
1383 pixel[x*4+0] = d[0];
1384 pixel[x*4+1] = d[1];
1385 pixel[x*4+2] = d[2];
1386 pixel[x*4+3] = d[3];
1392 void DPSOFTRAST_Draw_Span_FinishBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, const unsigned char* RESTRICT in4ub)
1395 int startx = span->startx;
1396 int endx = span->endx;
1398 const unsigned int * RESTRICT ini = (const unsigned int *)in4ub;
1400 unsigned char * RESTRICT pixelmask = span->pixelmask;
1401 unsigned char * RESTRICT pixel = (unsigned char *)dpsoftrast.fb_colorpixels[0];
1402 unsigned int * RESTRICT pixeli = (unsigned int *)dpsoftrast.fb_colorpixels[0];
1405 pixel += span->start * 4;
1406 pixeli += span->start;
1407 // handle alphatest now (this affects depth writes too)
1408 if (dpsoftrast.user.alphatest)
1409 for (x = startx;x < endx;x++)
1410 if (in4ub[x*4+3] < 0.5f)
1411 pixelmask[x] = false;
1412 // FIXME: this does not handle bigendian
1413 switch(dpsoftrast.fb_blendmode)
1415 case DPSOFTRAST_BLENDMODE_OPAQUE:
1416 for (x = startx;x < endx;x++)
1420 case DPSOFTRAST_BLENDMODE_ALPHA:
1421 for (x = startx;x < endx;x++)
1426 b = 256 - in4ub[x*4+3];
1427 pixel[x*4+0] = (in4ub[x*4+0]*a+pixel[x*4+0]*b) >> 8;
1428 pixel[x*4+1] = (in4ub[x*4+1]*a+pixel[x*4+1]*b) >> 8;
1429 pixel[x*4+2] = (in4ub[x*4+2]*a+pixel[x*4+2]*b) >> 8;
1430 pixel[x*4+3] = (in4ub[x*4+3]*a+pixel[x*4+3]*b) >> 8;
1433 case DPSOFTRAST_BLENDMODE_ADDALPHA:
1434 for (x = startx;x < endx;x++)
1439 d[0] = (((in4ub[x*4+0]*a)>>8)+pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1440 d[1] = (((in4ub[x*4+1]*a)>>8)+pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1441 d[2] = (((in4ub[x*4+2]*a)>>8)+pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1442 d[3] = (((in4ub[x*4+3]*a)>>8)+pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1443 pixel[x*4+0] = d[0];
1444 pixel[x*4+1] = d[1];
1445 pixel[x*4+2] = d[2];
1446 pixel[x*4+3] = d[3];
1449 case DPSOFTRAST_BLENDMODE_ADD:
1450 for (x = startx;x < endx;x++)
1454 d[0] = (in4ub[x*4+0]+pixel[x*4+0]);if (d[0] > 255) d[0] = 255;
1455 d[1] = (in4ub[x*4+1]+pixel[x*4+1]);if (d[1] > 255) d[1] = 255;
1456 d[2] = (in4ub[x*4+2]+pixel[x*4+2]);if (d[2] > 255) d[2] = 255;
1457 d[3] = (in4ub[x*4+3]+pixel[x*4+3]);if (d[3] > 255) d[3] = 255;
1458 pixel[x*4+0] = d[0];
1459 pixel[x*4+1] = d[1];
1460 pixel[x*4+2] = d[2];
1461 pixel[x*4+3] = d[3];
1464 case DPSOFTRAST_BLENDMODE_INVMOD:
1465 for (x = startx;x < endx;x++)
1469 pixel[x*4+0] = ((255-in4ub[x*4+0])*pixel[x*4+0])>>8;
1470 pixel[x*4+1] = ((255-in4ub[x*4+1])*pixel[x*4+1])>>8;
1471 pixel[x*4+2] = ((255-in4ub[x*4+2])*pixel[x*4+2])>>8;
1472 pixel[x*4+3] = ((255-in4ub[x*4+3])*pixel[x*4+3])>>8;
1475 case DPSOFTRAST_BLENDMODE_MUL:
1476 for (x = startx;x < endx;x++)
1480 pixel[x*4+0] = (in4ub[x*4+0]*pixel[x*4+0])>>8;
1481 pixel[x*4+1] = (in4ub[x*4+1]*pixel[x*4+1])>>8;
1482 pixel[x*4+2] = (in4ub[x*4+2]*pixel[x*4+2])>>8;
1483 pixel[x*4+3] = (in4ub[x*4+3]*pixel[x*4+3])>>8;
1486 case DPSOFTRAST_BLENDMODE_MUL2:
1487 for (x = startx;x < endx;x++)
1491 d[0] = (in4ub[x*4+0]*pixel[x*4+0])>>7;if (d[0] > 255) d[0] = 255;
1492 d[1] = (in4ub[x*4+1]*pixel[x*4+1])>>7;if (d[1] > 255) d[1] = 255;
1493 d[2] = (in4ub[x*4+2]*pixel[x*4+2])>>7;if (d[2] > 255) d[2] = 255;
1494 d[3] = (in4ub[x*4+3]*pixel[x*4+3])>>7;if (d[3] > 255) d[3] = 255;
1495 pixel[x*4+0] = d[0];
1496 pixel[x*4+1] = d[1];
1497 pixel[x*4+2] = d[2];
1498 pixel[x*4+3] = d[3];
1501 case DPSOFTRAST_BLENDMODE_SUBALPHA:
1502 for (x = startx;x < endx;x++)
1507 d[0] = pixel[x*4+0]-((in4ub[x*4+0]*a)>>8);if (d[0] < 0) d[0] = 0;
1508 d[1] = pixel[x*4+1]-((in4ub[x*4+1]*a)>>8);if (d[1] < 0) d[1] = 0;
1509 d[2] = pixel[x*4+2]-((in4ub[x*4+2]*a)>>8);if (d[2] < 0) d[2] = 0;
1510 d[3] = pixel[x*4+3]-((in4ub[x*4+3]*a)>>8);if (d[3] < 0) d[3] = 0;
1511 pixel[x*4+0] = d[0];
1512 pixel[x*4+1] = d[1];
1513 pixel[x*4+2] = d[2];
1514 pixel[x*4+3] = d[3];
1517 case DPSOFTRAST_BLENDMODE_PSEUDOALPHA:
1518 for (x = startx;x < endx;x++)
1522 b = 255 - in4ub[x*4+3];
1523 d[0] = in4ub[x*4+0]+((pixel[x*4+0]*b)>>8);if (d[0] > 255) d[0] = 255;
1524 d[1] = in4ub[x*4+1]+((pixel[x*4+1]*b)>>8);if (d[1] > 255) d[1] = 255;
1525 d[2] = in4ub[x*4+2]+((pixel[x*4+2]*b)>>8);if (d[2] > 255) d[2] = 255;
1526 d[3] = in4ub[x*4+3]+((pixel[x*4+3]*b)>>8);if (d[3] > 255) d[3] = 255;
1527 pixel[x*4+0] = d[0];
1528 pixel[x*4+1] = d[1];
1529 pixel[x*4+2] = d[2];
1530 pixel[x*4+3] = d[3];
1536 void DPSOFTRAST_Draw_Span_Texture2DVarying(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float * RESTRICT out4f, int texunitindex, int arrayindex, const float * RESTRICT zf)
1539 int startx = span->startx;
1540 int endx = span->endx;
1547 unsigned int tci[2];
1548 unsigned int tci1[2];
1549 unsigned int tcimin[2];
1550 unsigned int tcimax[2];
1555 const unsigned char * RESTRICT pixelbase;
1556 const unsigned char * RESTRICT pixel[4];
1557 DPSOFTRAST_Texture *texture = dpsoftrast.texbound[texunitindex];
1558 // if no texture is bound, just fill it with white
1561 for (x = startx;x < endx;x++)
1563 out4f[x*4+0] = 1.0f;
1564 out4f[x*4+1] = 1.0f;
1565 out4f[x*4+2] = 1.0f;
1566 out4f[x*4+3] = 1.0f;
1570 mip = span->mip[texunitindex];
1571 // if this mipmap of the texture is 1 pixel, just fill it with that color
1572 if (texture->mipmap[mip][1] == 4)
1574 c[0] = texture->bytes[2] * (1.0f/255.0f);
1575 c[1] = texture->bytes[1] * (1.0f/255.0f);
1576 c[2] = texture->bytes[0] * (1.0f/255.0f);
1577 c[3] = texture->bytes[3] * (1.0f/255.0f);
1578 for (x = startx;x < endx;x++)
1580 out4f[x*4+0] = c[0];
1581 out4f[x*4+1] = c[1];
1582 out4f[x*4+2] = c[2];
1583 out4f[x*4+3] = c[3];
1587 filter = texture->filter & DPSOFTRAST_TEXTURE_FILTER_LINEAR;
1588 data[0] = span->data[0][arrayindex][0];
1589 data[1] = span->data[0][arrayindex][1];
1590 data[2] = span->data[0][arrayindex][2];
1591 data[3] = span->data[0][arrayindex][3];
1592 slope[0] = span->data[1][arrayindex][0];
1593 slope[1] = span->data[1][arrayindex][1];
1594 slope[2] = span->data[1][arrayindex][2];
1595 slope[3] = span->data[1][arrayindex][3];
1596 flags = texture->flags;
1597 pixelbase = (unsigned char *)texture->bytes + texture->mipmap[mip][0];
1598 tcscale[0] = texture->mipmap[mip][2];
1599 tcscale[1] = texture->mipmap[mip][3];
1600 tciwidth = texture->mipmap[mip][2];
1603 tcimax[0] = texture->mipmap[mip][2]-1;
1604 tcimax[1] = texture->mipmap[mip][3]-1;
1605 tciwrapmask[0] = texture->mipmap[mip][2]-1;
1606 tciwrapmask[1] = texture->mipmap[mip][3]-1;
1607 for (x = startx;x < endx;)
1610 unsigned int subtc[2];
1611 unsigned int substep[2];
1612 int endsub = x + DPSOFTRAST_MAXSUBSPAN-1;
1613 float subscale = 4096.0f/(DPSOFTRAST_MAXSUBSPAN-1);
1617 subscale = endsub > x ? 4096.0f / (endsub - x) : 1.0f;
1619 tc[0] = (data[0] + slope[0]*x) * zf[x] * tcscale[0] - 0.5f;
1620 tc[1] = (data[1] + slope[1]*x) * zf[x] * tcscale[1] - 0.5f;
1621 endtc[0] = (data[0] + slope[0]*endsub) * zf[endsub] * tcscale[0] - 0.5f;
1622 endtc[1] = (data[1] + slope[1]*endsub) * zf[endsub] * tcscale[1] - 0.5f;
1623 substep[0] = (endtc[0] - tc[0]) * subscale;
1624 substep[1] = (endtc[1] - tc[1]) * subscale;
1625 subtc[0] = tc[0] * (1<<12);
1626 subtc[1] = tc[1] * (1<<12);
1627 if (!(flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE))
1629 subtc[0] &= (tciwrapmask[0]<<12)|0xFFF;
1630 subtc[1] &= (tciwrapmask[1]<<12)|0xFFF;
1634 tci[0] = (subtc[0]>>12) - tcimin[0];
1635 tci[1] = (subtc[1]>>12) - tcimin[1];
1636 tci1[0] = ((subtc[0] + (endsub - x)*substep[0])>>12);
1637 tci1[1] = ((subtc[1] + (endsub - x)*substep[1])>>12);
1638 if (tci[0] <= tcimax[0]-1 && tci[1] <= tcimax[1]-1 && tci1[0] <= tcimax[0]-1 && tci1[1] <= tcimax[1]-1)
1640 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1642 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1643 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1644 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1645 tci[0] = subtc[0]>>12;
1646 tci[1] = subtc[1]>>12;
1647 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1648 pixel[1] = pixel[0] + 4 * tciwidth;
1649 c[0] = (pixel[0][2]*lerp[0]+pixel[0][4+2]*lerp[1]+pixel[1][2]*lerp[2]+pixel[1][4+2]*lerp[3]) * (1.0f / 0xFF000000);
1650 c[1] = (pixel[0][1]*lerp[0]+pixel[0][4+1]*lerp[1]+pixel[1][1]*lerp[2]+pixel[1][4+1]*lerp[3]) * (1.0f / 0xFF000000);
1651 c[2] = (pixel[0][0]*lerp[0]+pixel[0][4+0]*lerp[1]+pixel[1][0]*lerp[2]+pixel[1][4+0]*lerp[3]) * (1.0f / 0xFF000000);
1652 c[3] = (pixel[0][3]*lerp[0]+pixel[0][4+3]*lerp[1]+pixel[1][3]*lerp[2]+pixel[1][4+3]*lerp[3]) * (1.0f / 0xFF000000);
1653 out4f[x*4+0] = c[0];
1654 out4f[x*4+1] = c[1];
1655 out4f[x*4+2] = c[2];
1656 out4f[x*4+3] = c[3];
1659 else if (flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE)
1661 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1663 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1664 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1665 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1666 tci[0] = subtc[0]>>12;
1667 tci[1] = subtc[1]>>12;
1668 tci1[0] = tci[0] + 1;
1669 tci1[1] = tci[1] + 1;
1670 tci[0] = tci[0] >= tcimin[0] ? (tci[0] <= tcimax[0] ? tci[0] : tcimax[0]) : tcimin[0];
1671 tci[1] = tci[1] >= tcimin[1] ? (tci[1] <= tcimax[1] ? tci[1] : tcimax[1]) : tcimin[1];
1672 tci1[0] = tci1[0] >= tcimin[0] ? (tci1[0] <= tcimax[0] ? tci1[0] : tcimax[0]) : tcimin[0];
1673 tci1[1] = tci1[1] >= tcimin[1] ? (tci1[1] <= tcimax[1] ? tci1[1] : tcimax[1]) : tcimin[1];
1674 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1675 pixel[1] = pixelbase + 4 * (tci[1]*tciwidth+tci1[0]);
1676 pixel[2] = pixelbase + 4 * (tci1[1]*tciwidth+tci[0]);
1677 pixel[3] = pixelbase + 4 * (tci1[1]*tciwidth+tci1[0]);
1678 c[0] = (pixel[0][2]*lerp[0]+pixel[1][2]*lerp[1]+pixel[2][2]*lerp[2]+pixel[3][2]*lerp[3]) * (1.0f / 0xFF000000);
1679 c[1] = (pixel[0][1]*lerp[0]+pixel[1][1]*lerp[1]+pixel[2][1]*lerp[2]+pixel[3][1]*lerp[3]) * (1.0f / 0xFF000000);
1680 c[2] = (pixel[0][0]*lerp[0]+pixel[1][0]*lerp[1]+pixel[2][0]*lerp[2]+pixel[3][0]*lerp[3]) * (1.0f / 0xFF000000);
1681 c[3] = (pixel[0][3]*lerp[0]+pixel[1][3]*lerp[1]+pixel[2][3]*lerp[2]+pixel[3][3]*lerp[3]) * (1.0f / 0xFF000000);
1682 out4f[x*4+0] = c[0];
1683 out4f[x*4+1] = c[1];
1684 out4f[x*4+2] = c[2];
1685 out4f[x*4+3] = c[3];
1690 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1692 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1693 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1694 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1695 tci[0] = subtc[0]>>12;
1696 tci[1] = subtc[1]>>12;
1697 tci1[0] = tci[0] + 1;
1698 tci1[1] = tci[1] + 1;
1699 tci[0] &= tciwrapmask[0];
1700 tci[1] &= tciwrapmask[1];
1701 tci1[0] &= tciwrapmask[0];
1702 tci1[1] &= tciwrapmask[1];
1703 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1704 pixel[1] = pixelbase + 4 * (tci[1]*tciwidth+tci1[0]);
1705 pixel[2] = pixelbase + 4 * (tci1[1]*tciwidth+tci[0]);
1706 pixel[3] = pixelbase + 4 * (tci1[1]*tciwidth+tci1[0]);
1707 c[0] = (pixel[0][2]*lerp[0]+pixel[1][2]*lerp[1]+pixel[2][2]*lerp[2]+pixel[3][2]*lerp[3]) * (1.0f / 0xFF000000);
1708 c[1] = (pixel[0][1]*lerp[0]+pixel[1][1]*lerp[1]+pixel[2][1]*lerp[2]+pixel[3][1]*lerp[3]) * (1.0f / 0xFF000000);
1709 c[2] = (pixel[0][0]*lerp[0]+pixel[1][0]*lerp[1]+pixel[2][0]*lerp[2]+pixel[3][0]*lerp[3]) * (1.0f / 0xFF000000);
1710 c[3] = (pixel[0][3]*lerp[0]+pixel[1][3]*lerp[1]+pixel[2][3]*lerp[2]+pixel[3][3]*lerp[3]) * (1.0f / 0xFF000000);
1711 out4f[x*4+0] = c[0];
1712 out4f[x*4+1] = c[1];
1713 out4f[x*4+2] = c[2];
1714 out4f[x*4+3] = c[3];
1718 else if (flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE)
1720 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1722 tci[0] = subtc[0]>>12;
1723 tci[1] = subtc[1]>>12;
1724 tci[0] = tci[0] >= tcimin[0] ? (tci[0] <= tcimax[0] ? tci[0] : tcimax[0]) : tcimin[0];
1725 tci[1] = tci[1] >= tcimin[1] ? (tci[1] <= tcimax[1] ? tci[1] : tcimax[1]) : tcimin[1];
1726 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1727 c[0] = pixel[0][2] * (1.0f / 255.0f);
1728 c[1] = pixel[0][1] * (1.0f / 255.0f);
1729 c[2] = pixel[0][0] * (1.0f / 255.0f);
1730 c[3] = pixel[0][3] * (1.0f / 255.0f);
1731 out4f[x*4+0] = c[0];
1732 out4f[x*4+1] = c[1];
1733 out4f[x*4+2] = c[2];
1734 out4f[x*4+3] = c[3];
1739 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1741 tci[0] = subtc[0]>>12;
1742 tci[1] = subtc[1]>>12;
1743 tci[0] &= tciwrapmask[0];
1744 tci[1] &= tciwrapmask[1];
1745 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1746 c[0] = pixel[0][2] * (1.0f / 255.0f);
1747 c[1] = pixel[0][1] * (1.0f / 255.0f);
1748 c[2] = pixel[0][0] * (1.0f / 255.0f);
1749 c[3] = pixel[0][3] * (1.0f / 255.0f);
1750 out4f[x*4+0] = c[0];
1751 out4f[x*4+1] = c[1];
1752 out4f[x*4+2] = c[2];
1753 out4f[x*4+3] = c[3];
1759 void DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char * RESTRICT out4ub, int texunitindex, int arrayindex, const float * RESTRICT zf)
1762 int startx = span->startx;
1763 int endx = span->endx;
1769 unsigned int tci[2];
1770 unsigned int tci1[2];
1771 unsigned int tcimin[2];
1772 unsigned int tcimax[2];
1778 unsigned int *outi = (unsigned int *)out4ub;
1779 const unsigned char * RESTRICT pixelbase;
1780 const unsigned int * RESTRICT pixelbasei;
1781 const unsigned char * RESTRICT pixel[4];
1782 DPSOFTRAST_Texture *texture = dpsoftrast.texbound[texunitindex];
1783 // if no texture is bound, just fill it with white
1786 memset(out4ub, 255, span->length*4);
1789 mip = span->mip[texunitindex];
1790 // if this mipmap of the texture is 1 pixel, just fill it with that color
1791 if (texture->mipmap[mip][1] == 4)
1793 k = *((const unsigned int *)texture->bytes);
1794 for (x = startx;x < endx;x++)
1798 filter = texture->filter & DPSOFTRAST_TEXTURE_FILTER_LINEAR;
1799 data[0] = span->data[0][arrayindex][0];
1800 data[1] = span->data[0][arrayindex][1];
1801 data[2] = span->data[0][arrayindex][2];
1802 data[3] = span->data[0][arrayindex][3];
1803 slope[0] = span->data[1][arrayindex][0];
1804 slope[1] = span->data[1][arrayindex][1];
1805 slope[2] = span->data[1][arrayindex][2];
1806 slope[3] = span->data[1][arrayindex][3];
1807 flags = texture->flags;
1808 pixelbase = (const unsigned char *)texture->bytes + texture->mipmap[mip][0];
1809 pixelbasei = (const unsigned int *)pixelbase;
1810 tcscale[0] = texture->mipmap[mip][2];
1811 tcscale[1] = texture->mipmap[mip][3];
1812 tciwidth = texture->mipmap[mip][2];
1815 tcimax[0] = texture->mipmap[mip][2]-1;
1816 tcimax[1] = texture->mipmap[mip][3]-1;
1817 tciwrapmask[0] = texture->mipmap[mip][2]-1;
1818 tciwrapmask[1] = texture->mipmap[mip][3]-1;
1819 for (x = startx;x < endx;)
1822 unsigned int subtc[2];
1823 unsigned int substep[2];
1824 int endsub = x + DPSOFTRAST_MAXSUBSPAN-1;
1825 float subscale = 4096.0f/(DPSOFTRAST_MAXSUBSPAN-1);
1829 subscale = endsub > x ? 4096.0f / (endsub - x) : 1.0f;
1831 tc[0] = (data[0] + slope[0]*x) * zf[x] * tcscale[0] - 0.5f;
1832 tc[1] = (data[1] + slope[1]*x) * zf[x] * tcscale[1] - 0.5f;
1833 endtc[0] = (data[0] + slope[0]*endsub) * zf[endsub] * tcscale[0] - 0.5f;
1834 endtc[1] = (data[1] + slope[1]*endsub) * zf[endsub] * tcscale[1] - 0.5f;
1835 substep[0] = (endtc[0] - tc[0]) * subscale;
1836 substep[1] = (endtc[1] - tc[1]) * subscale;
1837 subtc[0] = tc[0] * (1<<12);
1838 subtc[1] = tc[1] * (1<<12);
1839 if (!(flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE))
1841 subtc[0] &= (tciwrapmask[0]<<12)|0xFFF;
1842 subtc[1] &= (tciwrapmask[1]<<12)|0xFFF;
1845 // LordHavoc: an attempt at reducing number of integer multiplies, did not show any improvement in benchmarks, abandoned.
1846 if (filter && dpsoftrast_test)
1848 const unsigned int * RESTRICT pixeli[4];
1849 tci[0] = (subtc[0]>>12) - tcimin[0];
1850 tci[1] = (subtc[1]>>12) - tcimin[1];
1851 tci1[0] = ((subtc[0] + (endsub - x)*substep[0])>>12);
1852 tci1[1] = ((subtc[1] + (endsub - x)*substep[1])>>12);
1853 if (tci[0] <= tcimax[0]-1 && tci[1] <= tcimax[1]-1 && tci1[0] <= tcimax[0]-1 && tci1[1] <= tcimax[1]-1)
1855 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1857 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1858 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1859 unsigned int lerp[4] = { (ifrac[0]*ifrac[1]) >> 16, (frac[0]*ifrac[1]) >> 16, (ifrac[0]*frac[1]) >> 16, (frac[0]*frac[1]) >> 16 };
1860 tci[0] = subtc[0]>>12;
1861 tci[1] = subtc[1]>>12;
1862 pixeli[0] = pixelbasei + (tci[1]*tciwidth+tci[0]);
1863 pixeli[1] = pixeli[0] + tciwidth;
1864 outi[x] = ((((pixeli[0][0] >> 8) & 0x00FF00FF) * lerp[0] + ((pixeli[0][1] >> 8) & 0x00FF00FF) * lerp[1] + ((pixeli[1][0] >> 8) & 0x00FF00FF) * lerp[2] + ((pixeli[1][1] >> 8) & 0x00FF00FF) * lerp[3]) & 0xFF00FF00)
1865 | ((((pixeli[0][0] & 0x00FF00FF) * lerp[0] + ( pixeli[0][1] & 0x00FF00FF) * lerp[1] + ( pixeli[1][0] & 0x00FF00FF) * lerp[2] + ( pixeli[1][1] & 0x00FF00FF) * lerp[3])>>8) & 0x00FF00FF);
1868 else if (flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE)
1870 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1872 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1873 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1874 unsigned int lerp[4] = { (ifrac[0]*ifrac[1]) >> 16, (frac[0]*ifrac[1]) >> 16, (ifrac[0]*frac[1]) >> 16, (frac[0]*frac[1]) >> 16 };
1875 tci[0] = subtc[0]>>12;
1876 tci[1] = subtc[1]>>12;
1877 tci1[0] = tci[0] + 1;
1878 tci1[1] = tci[1] + 1;
1879 tci[0] = tci[0] >= tcimin[0] ? (tci[0] <= tcimax[0] ? tci[0] : tcimax[0]) : tcimin[0];
1880 tci[1] = tci[1] >= tcimin[1] ? (tci[1] <= tcimax[1] ? tci[1] : tcimax[1]) : tcimin[1];
1881 tci1[0] = tci1[0] >= tcimin[0] ? (tci1[0] <= tcimax[0] ? tci1[0] : tcimax[0]) : tcimin[0];
1882 tci1[1] = tci1[1] >= tcimin[1] ? (tci1[1] <= tcimax[1] ? tci1[1] : tcimax[1]) : tcimin[1];
1883 pixeli[0] = pixelbasei + (tci[1]*tciwidth+tci[0]);
1884 pixeli[1] = pixelbasei + (tci[1]*tciwidth+tci1[0]);
1885 pixeli[2] = pixelbasei + (tci1[1]*tciwidth+tci[0]);
1886 pixeli[3] = pixelbasei + (tci1[1]*tciwidth+tci1[0]);
1887 outi[x] = ((((pixeli[0][0] >> 8) & 0x00FF00FF) * lerp[0] + ((pixeli[1][0] >> 8) & 0x00FF00FF) * lerp[1] + ((pixeli[2][0] >> 8) & 0x00FF00FF) * lerp[2] + ((pixeli[3][0] >> 8) & 0x00FF00FF) * lerp[3]) & 0xFF00FF00)
1888 | ((((pixeli[0][0] & 0x00FF00FF) * lerp[0] + ( pixeli[1][0] & 0x00FF00FF) * lerp[1] + ( pixeli[2][0] & 0x00FF00FF) * lerp[2] + ( pixeli[3][0] & 0x00FF00FF) * lerp[3])>>8) & 0x00FF00FF);
1893 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1895 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1896 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1897 unsigned int lerp[4] = { (ifrac[0]*ifrac[1]) >> 16, (frac[0]*ifrac[1]) >> 16, (ifrac[0]*frac[1]) >> 16, (frac[0]*frac[1]) >> 16 };
1898 tci[0] = subtc[0]>>12;
1899 tci[1] = subtc[1]>>12;
1900 tci1[0] = tci[0] + 1;
1901 tci1[1] = tci[1] + 1;
1902 tci[0] &= tciwrapmask[0];
1903 tci[1] &= tciwrapmask[1];
1904 tci1[0] &= tciwrapmask[0];
1905 tci1[1] &= tciwrapmask[1];
1906 pixeli[0] = pixelbasei + (tci[1]*tciwidth+tci[0]);
1907 pixeli[1] = pixelbasei + (tci[1]*tciwidth+tci1[0]);
1908 pixeli[2] = pixelbasei + (tci1[1]*tciwidth+tci[0]);
1909 pixeli[3] = pixelbasei + (tci1[1]*tciwidth+tci1[0]);
1910 outi[x] = ((((pixeli[0][0] >> 8) & 0x00FF00FF) * lerp[0] + ((pixeli[1][0] >> 8) & 0x00FF00FF) * lerp[1] + ((pixeli[2][0] >> 8) & 0x00FF00FF) * lerp[2] + ((pixeli[3][0] >> 8) & 0x00FF00FF) * lerp[3]) & 0xFF00FF00)
1911 | ((((pixeli[0][0] & 0x00FF00FF) * lerp[0] + ( pixeli[1][0] & 0x00FF00FF) * lerp[1] + ( pixeli[2][0] & 0x00FF00FF) * lerp[2] + ( pixeli[3][0] & 0x00FF00FF) * lerp[3])>>8) & 0x00FF00FF);
1919 tci[0] = (subtc[0]>>12) - tcimin[0];
1920 tci[1] = (subtc[1]>>12) - tcimin[1];
1921 tci1[0] = ((subtc[0] + (endsub - x)*substep[0])>>12);
1922 tci1[1] = ((subtc[1] + (endsub - x)*substep[1])>>12);
1923 if (tci[0] <= tcimax[0]-1 && tci[1] <= tcimax[1]-1 && tci1[0] <= tcimax[0]-1 && tci1[1] <= tcimax[1]-1)
1925 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1927 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1928 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1929 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1930 tci[0] = subtc[0]>>12;
1931 tci[1] = subtc[1]>>12;
1932 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1933 pixel[1] = pixel[0] + 4 * tciwidth;
1934 out4ub[x*4+0] = (pixel[0][0]*lerp[0]+pixel[0][4+0]*lerp[1]+pixel[1][0]*lerp[2]+pixel[1][4+0]*lerp[3]) >> 24;
1935 out4ub[x*4+1] = (pixel[0][1]*lerp[0]+pixel[0][4+1]*lerp[1]+pixel[1][1]*lerp[2]+pixel[1][4+1]*lerp[3]) >> 24;
1936 out4ub[x*4+2] = (pixel[0][2]*lerp[0]+pixel[0][4+2]*lerp[1]+pixel[1][2]*lerp[2]+pixel[1][4+2]*lerp[3]) >> 24;
1937 out4ub[x*4+3] = (pixel[0][3]*lerp[0]+pixel[0][4+3]*lerp[1]+pixel[1][3]*lerp[2]+pixel[1][4+3]*lerp[3]) >> 24;
1940 else if (flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE)
1942 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1944 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1945 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1946 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1947 tci[0] = subtc[0]>>12;
1948 tci[1] = subtc[1]>>12;
1949 tci1[0] = tci[0] + 1;
1950 tci1[1] = tci[1] + 1;
1951 tci[0] = tci[0] >= tcimin[0] ? (tci[0] <= tcimax[0] ? tci[0] : tcimax[0]) : tcimin[0];
1952 tci[1] = tci[1] >= tcimin[1] ? (tci[1] <= tcimax[1] ? tci[1] : tcimax[1]) : tcimin[1];
1953 tci1[0] = tci1[0] >= tcimin[0] ? (tci1[0] <= tcimax[0] ? tci1[0] : tcimax[0]) : tcimin[0];
1954 tci1[1] = tci1[1] >= tcimin[1] ? (tci1[1] <= tcimax[1] ? tci1[1] : tcimax[1]) : tcimin[1];
1955 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1956 pixel[1] = pixelbase + 4 * (tci[1]*tciwidth+tci1[0]);
1957 pixel[2] = pixelbase + 4 * (tci1[1]*tciwidth+tci[0]);
1958 pixel[3] = pixelbase + 4 * (tci1[1]*tciwidth+tci1[0]);
1959 out4ub[x*4+0] = (pixel[0][0]*lerp[0]+pixel[1][0]*lerp[1]+pixel[2][0]*lerp[2]+pixel[3][0]*lerp[3]) >> 24;
1960 out4ub[x*4+1] = (pixel[0][1]*lerp[0]+pixel[1][1]*lerp[1]+pixel[2][1]*lerp[2]+pixel[3][1]*lerp[3]) >> 24;
1961 out4ub[x*4+2] = (pixel[0][2]*lerp[0]+pixel[1][2]*lerp[1]+pixel[2][2]*lerp[2]+pixel[3][2]*lerp[3]) >> 24;
1962 out4ub[x*4+3] = (pixel[0][3]*lerp[0]+pixel[1][3]*lerp[1]+pixel[2][3]*lerp[2]+pixel[3][3]*lerp[3]) >> 24;
1967 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
1969 unsigned int frac[2] = { subtc[0]&0xFFF, subtc[1]&0xFFF };
1970 unsigned int ifrac[2] = { 0x1000 - frac[0], 0x1000 - frac[1] };
1971 unsigned int lerp[4] = { ifrac[0]*ifrac[1], frac[0]*ifrac[1], ifrac[0]*frac[1], frac[0]*frac[1] };
1972 tci[0] = subtc[0]>>12;
1973 tci[1] = subtc[1]>>12;
1974 tci1[0] = tci[0] + 1;
1975 tci1[1] = tci[1] + 1;
1976 tci[0] &= tciwrapmask[0];
1977 tci[1] &= tciwrapmask[1];
1978 tci1[0] &= tciwrapmask[0];
1979 tci1[1] &= tciwrapmask[1];
1980 pixel[0] = pixelbase + 4 * (tci[1]*tciwidth+tci[0]);
1981 pixel[1] = pixelbase + 4 * (tci[1]*tciwidth+tci1[0]);
1982 pixel[2] = pixelbase + 4 * (tci1[1]*tciwidth+tci[0]);
1983 pixel[3] = pixelbase + 4 * (tci1[1]*tciwidth+tci1[0]);
1984 out4ub[x*4+0] = (pixel[0][0]*lerp[0]+pixel[1][0]*lerp[1]+pixel[2][0]*lerp[2]+pixel[3][0]*lerp[3]) >> 24;
1985 out4ub[x*4+1] = (pixel[0][1]*lerp[0]+pixel[1][1]*lerp[1]+pixel[2][1]*lerp[2]+pixel[3][1]*lerp[3]) >> 24;
1986 out4ub[x*4+2] = (pixel[0][2]*lerp[0]+pixel[1][2]*lerp[1]+pixel[2][2]*lerp[2]+pixel[3][2]*lerp[3]) >> 24;
1987 out4ub[x*4+3] = (pixel[0][3]*lerp[0]+pixel[1][3]*lerp[1]+pixel[2][3]*lerp[2]+pixel[3][3]*lerp[3]) >> 24;
1993 tci[0] = (subtc[0]>>12) - tcimin[0];
1994 tci[1] = (subtc[1]>>12) - tcimin[1];
1995 tci1[0] = ((subtc[0] + (endsub - x)*substep[0])>>12);
1996 tci1[1] = ((subtc[1] + (endsub - x)*substep[1])>>12);
1997 if (tci[0] <= tcimax[0]-1 && tci[1] <= tcimax[1]-1 && tci1[0] <= tcimax[0]-1 && tci1[1] <= tcimax[1]-1)
1999 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
2001 tci[0] = subtc[0]>>12;
2002 tci[1] = subtc[1]>>12;
2003 outi[x] = pixelbasei[(tci[1]*tciwidth+tci[0])];
2006 else if (flags & DPSOFTRAST_TEXTURE_FLAG_CLAMPTOEDGE)
2008 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
2010 tci[0] = subtc[0]>>12;
2011 tci[1] = subtc[1]>>12;
2012 tci[0] = tci[0] >= tcimin[0] ? (tci[0] <= tcimax[0] ? tci[0] : tcimax[0]) : tcimin[0];
2013 tci[1] = tci[1] >= tcimin[1] ? (tci[1] <= tcimax[1] ? tci[1] : tcimax[1]) : tcimin[1];
2014 outi[x] = pixelbasei[(tci[1]*tciwidth+tci[0])];
2019 for (; x <= endsub; x++, subtc[0] += substep[0], subtc[1] += substep[1])
2021 tci[0] = subtc[0]>>12;
2022 tci[1] = subtc[1]>>12;
2023 tci[0] &= tciwrapmask[0];
2024 tci[1] &= tciwrapmask[1];
2025 outi[x] = pixelbasei[(tci[1]*tciwidth+tci[0])];
2032 void DPSOFTRAST_Draw_Span_MultiplyVarying(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *in4f, int arrayindex, const float *zf)
2035 int startx = span->startx;
2036 int endx = span->endx;
2041 data[0] = span->data[0][arrayindex][0];
2042 data[1] = span->data[0][arrayindex][1];
2043 data[2] = span->data[0][arrayindex][2];
2044 data[3] = span->data[0][arrayindex][3];
2045 slope[0] = span->data[1][arrayindex][0];
2046 slope[1] = span->data[1][arrayindex][1];
2047 slope[2] = span->data[1][arrayindex][2];
2048 slope[3] = span->data[1][arrayindex][3];
2049 for (x = startx;x < endx;x++)
2052 c[0] = (data[0] + slope[0]*x) * z;
2053 c[1] = (data[1] + slope[1]*x) * z;
2054 c[2] = (data[2] + slope[2]*x) * z;
2055 c[3] = (data[3] + slope[3]*x) * z;
2056 out4f[x*4+0] = in4f[x*4+0] * c[0];
2057 out4f[x*4+1] = in4f[x*4+1] * c[1];
2058 out4f[x*4+2] = in4f[x*4+2] * c[2];
2059 out4f[x*4+3] = in4f[x*4+3] * c[3];
2063 void DPSOFTRAST_Draw_Span_Varying(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, int arrayindex, const float *zf)
2066 int startx = span->startx;
2067 int endx = span->endx;
2072 data[0] = span->data[0][arrayindex][0];
2073 data[1] = span->data[0][arrayindex][1];
2074 data[2] = span->data[0][arrayindex][2];
2075 data[3] = span->data[0][arrayindex][3];
2076 slope[0] = span->data[1][arrayindex][0];
2077 slope[1] = span->data[1][arrayindex][1];
2078 slope[2] = span->data[1][arrayindex][2];
2079 slope[3] = span->data[1][arrayindex][3];
2080 for (x = startx;x < endx;x++)
2083 c[0] = (data[0] + slope[0]*x) * z;
2084 c[1] = (data[1] + slope[1]*x) * z;
2085 c[2] = (data[2] + slope[2]*x) * z;
2086 c[3] = (data[3] + slope[3]*x) * z;
2087 out4f[x*4+0] = c[0];
2088 out4f[x*4+1] = c[1];
2089 out4f[x*4+2] = c[2];
2090 out4f[x*4+3] = c[3];
2094 void DPSOFTRAST_Draw_Span_AddBloom(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *ina4f, const float *inb4f, const float *subcolor)
2096 int x, startx = span->startx, endx = span->endx;
2097 float c[4], localcolor[4];
2098 localcolor[0] = subcolor[0];
2099 localcolor[1] = subcolor[1];
2100 localcolor[2] = subcolor[2];
2101 localcolor[3] = subcolor[3];
2102 for (x = startx;x < endx;x++)
2104 c[0] = inb4f[x*4+0] - localcolor[0];if (c[0] < 0.0f) c[0] = 0.0f;
2105 c[1] = inb4f[x*4+1] - localcolor[1];if (c[1] < 0.0f) c[1] = 0.0f;
2106 c[2] = inb4f[x*4+2] - localcolor[2];if (c[2] < 0.0f) c[2] = 0.0f;
2107 c[3] = inb4f[x*4+3] - localcolor[3];if (c[3] < 0.0f) c[3] = 0.0f;
2108 out4f[x*4+0] = ina4f[x*4+0] + c[0];
2109 out4f[x*4+1] = ina4f[x*4+1] + c[1];
2110 out4f[x*4+2] = ina4f[x*4+2] + c[2];
2111 out4f[x*4+3] = ina4f[x*4+3] + c[3];
2115 void DPSOFTRAST_Draw_Span_MultiplyBuffers(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *ina4f, const float *inb4f)
2117 int x, startx = span->startx, endx = span->endx;
2118 for (x = startx;x < endx;x++)
2120 out4f[x*4+0] = ina4f[x*4+0] * inb4f[x*4+0];
2121 out4f[x*4+1] = ina4f[x*4+1] * inb4f[x*4+1];
2122 out4f[x*4+2] = ina4f[x*4+2] * inb4f[x*4+2];
2123 out4f[x*4+3] = ina4f[x*4+3] * inb4f[x*4+3];
2127 void DPSOFTRAST_Draw_Span_AddBuffers(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *ina4f, const float *inb4f)
2129 int x, startx = span->startx, endx = span->endx;
2130 for (x = startx;x < endx;x++)
2132 out4f[x*4+0] = ina4f[x*4+0] + inb4f[x*4+0];
2133 out4f[x*4+1] = ina4f[x*4+1] + inb4f[x*4+1];
2134 out4f[x*4+2] = ina4f[x*4+2] + inb4f[x*4+2];
2135 out4f[x*4+3] = ina4f[x*4+3] + inb4f[x*4+3];
2139 void DPSOFTRAST_Draw_Span_MixBuffers(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *ina4f, const float *inb4f)
2141 int x, startx = span->startx, endx = span->endx;
2143 for (x = startx;x < endx;x++)
2145 a = 1.0f - inb4f[x*4+3];
2147 out4f[x*4+0] = ina4f[x*4+0] * a + inb4f[x*4+0] * b;
2148 out4f[x*4+1] = ina4f[x*4+1] * a + inb4f[x*4+1] * b;
2149 out4f[x*4+2] = ina4f[x*4+2] * a + inb4f[x*4+2] * b;
2150 out4f[x*4+3] = ina4f[x*4+3] * a + inb4f[x*4+3] * b;
2154 void DPSOFTRAST_Draw_Span_MixUniformColor(const DPSOFTRAST_State_Draw_Span * RESTRICT span, float *out4f, const float *in4f, const float *color)
2156 int x, startx = span->startx, endx = span->endx;
2157 float localcolor[4], ilerp, lerp;
2158 localcolor[0] = color[0];
2159 localcolor[1] = color[1];
2160 localcolor[2] = color[2];
2161 localcolor[3] = color[3];
2162 ilerp = 1.0f - localcolor[3];
2163 lerp = localcolor[3];
2164 for (x = startx;x < endx;x++)
2166 out4f[x*4+0] = in4f[x*4+0] * ilerp + localcolor[0] * lerp;
2167 out4f[x*4+1] = in4f[x*4+1] * ilerp + localcolor[1] * lerp;
2168 out4f[x*4+2] = in4f[x*4+2] * ilerp + localcolor[2] * lerp;
2169 out4f[x*4+3] = in4f[x*4+3] * ilerp + localcolor[3] * lerp;
2175 void DPSOFTRAST_Draw_Span_MultiplyVaryingBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *in4ub, int arrayindex, const float *zf)
2178 int startx = span->startx;
2179 int endx = span->endx;
2183 data[2] = span->data[0][arrayindex][0];
2184 data[1] = span->data[0][arrayindex][1];
2185 data[0] = span->data[0][arrayindex][2];
2186 data[3] = span->data[0][arrayindex][3];
2187 slope[2] = span->data[1][arrayindex][0];
2188 slope[1] = span->data[1][arrayindex][1];
2189 slope[0] = span->data[1][arrayindex][2];
2190 slope[3] = span->data[1][arrayindex][3];
2191 for (x = startx;x < endx;x++)
2194 out4ub[x*4+0] = (int)(in4ub[x*4+0] * (data[0] + slope[0]*x) * z);
2195 out4ub[x*4+1] = (int)(in4ub[x*4+1] * (data[1] + slope[1]*x) * z);
2196 out4ub[x*4+2] = (int)(in4ub[x*4+2] * (data[2] + slope[2]*x) * z);
2197 out4ub[x*4+3] = (int)(in4ub[x*4+3] * (data[3] + slope[3]*x) * z);
2201 void DPSOFTRAST_Draw_Span_VaryingBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, int arrayindex, const float *zf)
2204 int startx = span->startx;
2205 int endx = span->endx;
2209 data[2] = span->data[0][arrayindex][0]*255.0f;
2210 data[1] = span->data[0][arrayindex][1]*255.0f;
2211 data[0] = span->data[0][arrayindex][2]*255.0f;
2212 data[3] = span->data[0][arrayindex][3]*255.0f;
2213 slope[2] = span->data[1][arrayindex][0]*255.0f;
2214 slope[1] = span->data[1][arrayindex][1]*255.0f;
2215 slope[0] = span->data[1][arrayindex][2]*255.0f;
2216 slope[3] = span->data[1][arrayindex][3]*255.0f;
2217 for (x = startx;x < endx;x++)
2220 out4ub[x*4+0] = (int)((data[0] + slope[0]*x) * z);
2221 out4ub[x*4+1] = (int)((data[1] + slope[1]*x) * z);
2222 out4ub[x*4+2] = (int)((data[2] + slope[2]*x) * z);
2223 out4ub[x*4+3] = (int)((data[3] + slope[3]*x) * z);
2227 void DPSOFTRAST_Draw_Span_AddBloomBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *ina4ub, const unsigned char *inb4ub, const float *subcolor)
2229 int x, startx = span->startx, endx = span->endx;
2230 int c[4], localcolor[4];
2231 localcolor[2] = (int)(subcolor[0] * 255.0f);
2232 localcolor[1] = (int)(subcolor[1] * 255.0f);
2233 localcolor[0] = (int)(subcolor[2] * 255.0f);
2234 localcolor[3] = (int)(subcolor[3] * 255.0f);
2235 for (x = startx;x < endx;x++)
2237 c[0] = inb4ub[x*4+0] - localcolor[0];if (c[0] < 0) c[0] = 0;
2238 c[1] = inb4ub[x*4+1] - localcolor[1];if (c[1] < 0) c[1] = 0;
2239 c[2] = inb4ub[x*4+2] - localcolor[2];if (c[2] < 0) c[2] = 0;
2240 c[3] = inb4ub[x*4+3] - localcolor[3];if (c[3] < 0) c[3] = 0;
2241 c[0] += ina4ub[x*4+0];if (c[0] > 255) c[0] = 255;
2242 c[1] += ina4ub[x*4+1];if (c[1] > 255) c[1] = 255;
2243 c[2] += ina4ub[x*4+2];if (c[2] > 255) c[2] = 255;
2244 c[3] += ina4ub[x*4+3];if (c[3] > 255) c[3] = 255;
2245 out4ub[x*4+0] = c[0];
2246 out4ub[x*4+1] = c[1];
2247 out4ub[x*4+2] = c[2];
2248 out4ub[x*4+3] = c[3];
2252 void DPSOFTRAST_Draw_Span_MultiplyBuffersBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *ina4ub, const unsigned char *inb4ub)
2254 int x, startx = span->startx, endx = span->endx;
2255 for (x = startx;x < endx;x++)
2257 out4ub[x*4+0] = (ina4ub[x*4+0] * inb4ub[x*4+0])>>8;
2258 out4ub[x*4+1] = (ina4ub[x*4+1] * inb4ub[x*4+1])>>8;
2259 out4ub[x*4+2] = (ina4ub[x*4+2] * inb4ub[x*4+2])>>8;
2260 out4ub[x*4+3] = (ina4ub[x*4+3] * inb4ub[x*4+3])>>8;
2264 void DPSOFTRAST_Draw_Span_AddBuffersBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *ina4ub, const unsigned char *inb4ub)
2266 int x, startx = span->startx, endx = span->endx;
2268 for (x = startx;x < endx;x++)
2270 d[0] = ina4ub[x*4+0] + inb4ub[x*4+0];if (d[0] > 255) d[0] = 255;
2271 d[1] = ina4ub[x*4+1] + inb4ub[x*4+1];if (d[1] > 255) d[1] = 255;
2272 d[2] = ina4ub[x*4+2] + inb4ub[x*4+2];if (d[2] > 255) d[2] = 255;
2273 d[3] = ina4ub[x*4+3] + inb4ub[x*4+3];if (d[3] > 255) d[3] = 255;
2274 out4ub[x*4+0] = d[0];
2275 out4ub[x*4+1] = d[1];
2276 out4ub[x*4+2] = d[2];
2277 out4ub[x*4+3] = d[3];
2281 void DPSOFTRAST_Draw_Span_TintedAddBuffersBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *ina4ub, const unsigned char *inb4ub, const float *inbtintbgra)
2283 int x, startx = span->startx, endx = span->endx;
2286 b[0] = (int)(inbtintbgra[0] * 256.0f);
2287 b[1] = (int)(inbtintbgra[1] * 256.0f);
2288 b[2] = (int)(inbtintbgra[2] * 256.0f);
2289 b[3] = (int)(inbtintbgra[3] * 256.0f);
2290 for (x = startx;x < endx;x++)
2292 d[0] = ina4ub[x*4+0] + ((inb4ub[x*4+0]*b[0])>>8);if (d[0] > 255) d[0] = 255;
2293 d[1] = ina4ub[x*4+1] + ((inb4ub[x*4+1]*b[1])>>8);if (d[1] > 255) d[1] = 255;
2294 d[2] = ina4ub[x*4+2] + ((inb4ub[x*4+2]*b[2])>>8);if (d[2] > 255) d[2] = 255;
2295 d[3] = ina4ub[x*4+3] + ((inb4ub[x*4+3]*b[3])>>8);if (d[3] > 255) d[3] = 255;
2296 out4ub[x*4+0] = d[0];
2297 out4ub[x*4+1] = d[1];
2298 out4ub[x*4+2] = d[2];
2299 out4ub[x*4+3] = d[3];
2303 void DPSOFTRAST_Draw_Span_MixBuffersBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *ina4ub, const unsigned char *inb4ub)
2305 int x, startx = span->startx, endx = span->endx;
2307 for (x = startx;x < endx;x++)
2309 a = 256 - inb4ub[x*4+3];
2311 out4ub[x*4+0] = (ina4ub[x*4+0] * a + inb4ub[x*4+0] * b)>>8;
2312 out4ub[x*4+1] = (ina4ub[x*4+1] * a + inb4ub[x*4+1] * b)>>8;
2313 out4ub[x*4+2] = (ina4ub[x*4+2] * a + inb4ub[x*4+2] * b)>>8;
2314 out4ub[x*4+3] = (ina4ub[x*4+3] * a + inb4ub[x*4+3] * b)>>8;
2318 void DPSOFTRAST_Draw_Span_MixUniformColorBGRA8(const DPSOFTRAST_State_Draw_Span * RESTRICT span, unsigned char *out4ub, const unsigned char *in4ub, const float *color)
2320 int x, startx = span->startx, endx = span->endx;
2321 int localcolor[4], ilerp, lerp;
2322 localcolor[2] = (int)(color[0]*255.0f);
2323 localcolor[1] = (int)(color[1]*255.0f);
2324 localcolor[0] = (int)(color[2]*255.0f);
2325 localcolor[3] = (int)(color[3]*255.0f);
2326 ilerp = 256 - localcolor[3];
2327 lerp = localcolor[3];
2328 for (x = startx;x < endx;x++)
2330 out4ub[x*4+0] = (in4ub[x*4+0] * ilerp + localcolor[0] * lerp)>>8;
2331 out4ub[x*4+1] = (in4ub[x*4+1] * ilerp + localcolor[1] * lerp)>>8;
2332 out4ub[x*4+2] = (in4ub[x*4+2] * ilerp + localcolor[2] * lerp)>>8;
2333 out4ub[x*4+3] = (in4ub[x*4+3] * ilerp + localcolor[3] * lerp)>>8;
2339 void DPSOFTRAST_VertexShader_Generic(void)
2341 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2342 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_COLOR], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_COLOR], dpsoftrast.draw.numvertices);
2343 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices);
2344 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_SPECULAR)
2345 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD1], dpsoftrast.draw.numvertices);
2348 void DPSOFTRAST_PixelShader_Generic(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2350 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2351 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2352 unsigned char buffer_texture_lightmapbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2353 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2354 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2355 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_DIFFUSE)
2357 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_FIRST, 2, buffer_z);
2358 DPSOFTRAST_Draw_Span_MultiplyVaryingBGRA8(span, buffer_FragColorbgra8, buffer_texture_colorbgra8, 1, buffer_z);
2359 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_SPECULAR)
2361 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_lightmapbgra8, GL20TU_SECOND, 2, buffer_z);
2362 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_COLORMAPPING)
2365 DPSOFTRAST_Draw_Span_MultiplyBuffersBGRA8(span, buffer_FragColorbgra8, buffer_FragColorbgra8, buffer_texture_lightmapbgra8);
2367 else if (dpsoftrast.shader_permutation & SHADERPERMUTATION_COLORMAPPING)
2370 DPSOFTRAST_Draw_Span_AddBuffersBGRA8(span, buffer_FragColorbgra8, buffer_FragColorbgra8, buffer_texture_lightmapbgra8);
2372 else if (dpsoftrast.shader_permutation & SHADERPERMUTATION_VERTEXTEXTUREBLEND)
2375 DPSOFTRAST_Draw_Span_MixBuffersBGRA8(span, buffer_FragColorbgra8, buffer_FragColorbgra8, buffer_texture_lightmapbgra8);
2380 DPSOFTRAST_Draw_Span_VaryingBGRA8(span, buffer_FragColorbgra8, 1, buffer_z);
2381 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2386 void DPSOFTRAST_VertexShader_PostProcess(void)
2388 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2389 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices);
2390 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD1], dpsoftrast.draw.numvertices);
2393 void DPSOFTRAST_PixelShader_PostProcess(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2395 // TODO: optimize!! at the very least there is no reason to use texture sampling on the frame texture
2396 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2397 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2398 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2399 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2400 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_FragColorbgra8, GL20TU_FIRST, 2, buffer_z);
2401 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_BLOOM)
2403 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_SECOND, 3, buffer_z);
2404 DPSOFTRAST_Draw_Span_AddBloomBGRA8(span, buffer_FragColorbgra8, buffer_FragColorbgra8, buffer_texture_colorbgra8, dpsoftrast.uniform4f + DPSOFTRAST_UNIFORM_BloomColorSubtract * 4);
2406 DPSOFTRAST_Draw_Span_MixUniformColorBGRA8(span, buffer_FragColorbgra8, buffer_FragColorbgra8, dpsoftrast.uniform4f + DPSOFTRAST_UNIFORM_ViewTintColor * 4);
2407 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_SATURATION)
2409 // TODO: implement saturation
2411 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GAMMARAMPS)
2413 // TODO: implement gammaramps
2415 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2420 void DPSOFTRAST_VertexShader_Depth_Or_Shadow(void)
2422 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2425 void DPSOFTRAST_PixelShader_Depth_Or_Shadow(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2427 // this is never called (because colormask is off when this shader is used)
2428 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2429 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2430 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2431 memset(buffer_FragColorbgra8, 0, span->length*4);
2432 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2437 void DPSOFTRAST_VertexShader_FlatColor(void)
2439 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2440 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_TexMatrixM1);
2443 void DPSOFTRAST_PixelShader_FlatColor(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2445 int x, startx = span->startx, endx = span->endx;
2446 int Color_Ambienti[4];
2447 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2448 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2449 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2450 Color_Ambienti[2] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+0]*256.0f);
2451 Color_Ambienti[1] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+1]*256.0f);
2452 Color_Ambienti[0] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+2]*256.0f);
2453 Color_Ambienti[3] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Alpha*4+0] *256.0f);
2454 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2455 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_COLOR, 2, buffer_z);
2456 for (x = startx;x < endx;x++)
2458 buffer_FragColorbgra8[x*4+0] = (buffer_texture_colorbgra8[x*4+0] * Color_Ambienti[0])>>8;
2459 buffer_FragColorbgra8[x*4+1] = (buffer_texture_colorbgra8[x*4+1] * Color_Ambienti[1])>>8;
2460 buffer_FragColorbgra8[x*4+2] = (buffer_texture_colorbgra8[x*4+2] * Color_Ambienti[2])>>8;
2461 buffer_FragColorbgra8[x*4+3] = (buffer_texture_colorbgra8[x*4+3] * Color_Ambienti[3])>>8;
2463 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2468 void DPSOFTRAST_VertexShader_VertexColor(void)
2470 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2471 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_COLOR], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_COLOR], dpsoftrast.draw.numvertices);
2472 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_TexMatrixM1);
2475 void DPSOFTRAST_PixelShader_VertexColor(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2477 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2478 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2479 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2480 int x, startx = span->startx, endx = span->endx;
2481 float Color_Ambient[4], Color_Diffuse[4];
2485 int arrayindex = DPSOFTRAST_ARRAY_COLOR;
2486 data[2] = span->data[0][arrayindex][0];
2487 data[1] = span->data[0][arrayindex][1];
2488 data[0] = span->data[0][arrayindex][2];
2489 data[3] = span->data[0][arrayindex][3];
2490 slope[2] = span->data[1][arrayindex][0];
2491 slope[1] = span->data[1][arrayindex][1];
2492 slope[0] = span->data[1][arrayindex][2];
2493 slope[3] = span->data[1][arrayindex][3];
2494 Color_Ambient[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+0];
2495 Color_Ambient[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+1];
2496 Color_Ambient[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+2];
2497 Color_Ambient[3] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Alpha*4+0];
2498 Color_Diffuse[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+0];
2499 Color_Diffuse[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+1];
2500 Color_Diffuse[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+2];
2501 Color_Diffuse[3] = 0.0f;
2502 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2503 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_COLOR, 2, buffer_z);
2504 for (x = startx;x < endx;x++)
2507 buffer_FragColorbgra8[x*4+0] = (int)(buffer_texture_colorbgra8[x*4+0] * (Color_Ambient[0] + ((data[0] + slope[0]*x) * z) * Color_Diffuse[0]));
2508 buffer_FragColorbgra8[x*4+1] = (int)(buffer_texture_colorbgra8[x*4+1] * (Color_Ambient[1] + ((data[1] + slope[1]*x) * z) * Color_Diffuse[1]));
2509 buffer_FragColorbgra8[x*4+2] = (int)(buffer_texture_colorbgra8[x*4+2] * (Color_Ambient[2] + ((data[2] + slope[2]*x) * z) * Color_Diffuse[2]));
2510 buffer_FragColorbgra8[x*4+3] = (int)(buffer_texture_colorbgra8[x*4+3] * (Color_Ambient[3] + ((data[3] + slope[3]*x) * z) * Color_Diffuse[3]));
2512 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2517 void DPSOFTRAST_VertexShader_Lightmap(void)
2519 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2520 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_TexMatrixM1);
2521 DPSOFTRAST_Array_Copy(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD4], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD4], dpsoftrast.draw.numvertices);
2524 void DPSOFTRAST_PixelShader_Lightmap(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2526 int x, startx = span->startx, endx = span->endx;
2527 int Color_Ambienti[4], Color_Diffusei[4], Color_Glowi[4];
2528 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2529 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2530 unsigned char buffer_texture_lightmapbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2531 unsigned char buffer_texture_glowbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2532 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2534 //unsigned char * RESTRICT pixelmask = span->pixelmask;
2535 //unsigned char * RESTRICT pixel = (unsigned char *)dpsoftrast.fb_colorpixels[0] + span->start * 4;
2536 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2537 Color_Ambienti[2] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+0] * 65536.0f);
2538 Color_Ambienti[1] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+1] * 65536.0f);
2539 Color_Ambienti[0] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+2] * 65536.0f);
2540 Color_Ambienti[3] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Alpha*4+0] * 65536.0f);
2541 Color_Diffusei[2] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+0] * 256.0f);
2542 Color_Diffusei[1] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+1] * 256.0f);
2543 Color_Diffusei[0] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+2] * 256.0f);
2544 Color_Diffusei[3] = 0;
2545 Color_Glowi[2] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+0] * 65536.0f);
2546 Color_Glowi[1] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+1] * 65536.0f);
2547 Color_Glowi[0] = (int)(dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+2] * 65536.0f);
2549 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_COLOR, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2550 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_lightmapbgra8, GL20TU_LIGHTMAP, DPSOFTRAST_ARRAY_TEXCOORD4, buffer_z);
2551 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GLOW)
2553 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_glowbgra8, GL20TU_GLOW, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2554 for (x = startx;x < endx;x++)
2556 d[0] = (buffer_texture_glowbgra8[x*4+0] * Color_Glowi[0] + buffer_texture_colorbgra8[x*4+0] * (Color_Ambienti[0] + buffer_texture_lightmapbgra8[x*4+0] * Color_Diffusei[0])) >> 16;if (d[0] > 255) d[0] = 255;
2557 d[1] = (buffer_texture_glowbgra8[x*4+1] * Color_Glowi[1] + buffer_texture_colorbgra8[x*4+1] * (Color_Ambienti[1] + buffer_texture_lightmapbgra8[x*4+1] * Color_Diffusei[1])) >> 16;if (d[1] > 255) d[1] = 255;
2558 d[2] = (buffer_texture_glowbgra8[x*4+2] * Color_Glowi[2] + buffer_texture_colorbgra8[x*4+2] * (Color_Ambienti[2] + buffer_texture_lightmapbgra8[x*4+2] * Color_Diffusei[2])) >> 16;if (d[2] > 255) d[2] = 255;
2559 d[3] = (buffer_texture_glowbgra8[x*4+3] * Color_Glowi[3] + buffer_texture_colorbgra8[x*4+3] * (Color_Ambienti[3] + buffer_texture_lightmapbgra8[x*4+3] * Color_Diffusei[3])) >> 16;if (d[3] > 255) d[3] = 255;
2560 buffer_FragColorbgra8[x*4+0] = d[0];
2561 buffer_FragColorbgra8[x*4+1] = d[1];
2562 buffer_FragColorbgra8[x*4+2] = d[2];
2563 buffer_FragColorbgra8[x*4+3] = d[3];
2568 for (x = startx;x < endx;x++)
2570 d[0] = (buffer_texture_colorbgra8[x*4+0] * (Color_Ambienti[0] + buffer_texture_lightmapbgra8[x*4+0] * Color_Diffusei[0])) >> 16;if (d[0] > 255) d[0] = 255;
2571 d[1] = (buffer_texture_colorbgra8[x*4+1] * (Color_Ambienti[1] + buffer_texture_lightmapbgra8[x*4+1] * Color_Diffusei[1])) >> 16;if (d[1] > 255) d[1] = 255;
2572 d[2] = (buffer_texture_colorbgra8[x*4+2] * (Color_Ambienti[2] + buffer_texture_lightmapbgra8[x*4+2] * Color_Diffusei[2])) >> 16;if (d[2] > 255) d[2] = 255;
2573 d[3] = (buffer_texture_colorbgra8[x*4+3] * (Color_Ambienti[3] + buffer_texture_lightmapbgra8[x*4+3] * Color_Diffusei[3])) >> 16;if (d[3] > 255) d[3] = 255;
2574 buffer_FragColorbgra8[x*4+0] = d[0];
2575 buffer_FragColorbgra8[x*4+1] = d[1];
2576 buffer_FragColorbgra8[x*4+2] = d[2];
2577 buffer_FragColorbgra8[x*4+3] = d[3];
2580 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2585 void DPSOFTRAST_VertexShader_FakeLight(void)
2587 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2590 void DPSOFTRAST_PixelShader_FakeLight(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2593 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2594 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2595 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2596 memset(buffer_FragColorbgra8, 0, span->length*4);
2597 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2602 void DPSOFTRAST_VertexShader_LightDirectionMap_ModelSpace(void)
2604 DPSOFTRAST_VertexShader_Lightmap();
2607 void DPSOFTRAST_PixelShader_LightDirectionMap_ModelSpace(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2609 DPSOFTRAST_PixelShader_Lightmap(span);
2615 void DPSOFTRAST_VertexShader_LightDirectionMap_TangentSpace(void)
2617 DPSOFTRAST_VertexShader_Lightmap();
2620 void DPSOFTRAST_PixelShader_LightDirectionMap_TangentSpace(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2622 DPSOFTRAST_PixelShader_Lightmap(span);
2628 void DPSOFTRAST_VertexShader_LightDirection(void)
2631 int numvertices = dpsoftrast.draw.numvertices;
2633 float LightVector[4];
2634 float EyePosition[4];
2635 float EyeVectorModelSpace[4];
2641 LightDir[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightDir*4+0];
2642 LightDir[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightDir*4+1];
2643 LightDir[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightDir*4+2];
2644 LightDir[3] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightDir*4+3];
2645 EyePosition[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_EyePosition*4+0];
2646 EyePosition[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_EyePosition*4+1];
2647 EyePosition[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_EyePosition*4+2];
2648 EyePosition[3] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_EyePosition*4+3];
2649 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2650 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD0], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_TexMatrixM1);
2651 for (i = 0;i < numvertices;i++)
2653 position[0] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+0];
2654 position[1] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+1];
2655 position[2] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+2];
2656 svector[0] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+0];
2657 svector[1] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+1];
2658 svector[2] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+2];
2659 tvector[0] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+0];
2660 tvector[1] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+1];
2661 tvector[2] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+2];
2662 normal[0] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD3][i*4+0];
2663 normal[1] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD3][i*4+1];
2664 normal[2] = dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_TEXCOORD3][i*4+2];
2665 LightVector[0] = svector[0] * LightDir[0] + svector[1] * LightDir[1] + svector[2] * LightDir[2];
2666 LightVector[1] = tvector[0] * LightDir[0] + tvector[1] * LightDir[1] + tvector[2] * LightDir[2];
2667 LightVector[2] = normal[0] * LightDir[0] + normal[1] * LightDir[1] + normal[2] * LightDir[2];
2668 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+0] = LightVector[0];
2669 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+1] = LightVector[1];
2670 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+2] = LightVector[2];
2671 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD1][i*4+3] = 0.0f;
2672 EyeVectorModelSpace[0] = EyePosition[0] - position[0];
2673 EyeVectorModelSpace[1] = EyePosition[1] - position[1];
2674 EyeVectorModelSpace[2] = EyePosition[2] - position[2];
2675 EyeVector[0] = svector[0] * EyeVectorModelSpace[0] + svector[1] * EyeVectorModelSpace[1] + svector[2] * EyeVectorModelSpace[2];
2676 EyeVector[1] = tvector[0] * EyeVectorModelSpace[0] + tvector[1] * EyeVectorModelSpace[1] + tvector[2] * EyeVectorModelSpace[2];
2677 EyeVector[2] = normal[0] * EyeVectorModelSpace[0] + normal[1] * EyeVectorModelSpace[1] + normal[2] * EyeVectorModelSpace[2];
2678 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+0] = EyeVector[0];
2679 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+1] = EyeVector[1];
2680 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+2] = EyeVector[2];
2681 dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_TEXCOORD2][i*4+3] = 0.0f;
2685 #define DPSOFTRAST_Min(a,b) ((a) < (b) ? (a) : (b))
2686 #define DPSOFTRAST_Max(a,b) ((a) > (b) ? (a) : (b))
2687 #define DPSOFTRAST_Vector3Dot(a,b) ((a)[0]*(b)[0]+(a)[1]*(b)[1]+(a)[2]*(b)[2])
2688 #define DPSOFTRAST_Vector3LengthSquared(v) (DPSOFTRAST_Vector3Dot((v),(v)))
2689 #define DPSOFTRAST_Vector3Length(v) (sqrt(DPSOFTRAST_Vector3LengthSquared(v)))
2690 #define DPSOFTRAST_Vector3Normalize(v)\
2693 float len = sqrt(DPSOFTRAST_Vector3Dot(v,v));\
2704 void DPSOFTRAST_PixelShader_LightDirection(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2706 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2707 unsigned char buffer_texture_colorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2708 unsigned char buffer_texture_normalbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2709 unsigned char buffer_texture_glossbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2710 unsigned char buffer_texture_glowbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2711 unsigned char buffer_texture_pantsbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2712 unsigned char buffer_texture_shirtbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2713 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2714 int x, startx = span->startx, endx = span->endx;
2715 float Color_Ambient[4], Color_Diffuse[4], Color_Specular[4], Color_Glow[4], Color_Pants[4], Color_Shirt[4], LightColor[4];
2716 float LightVectordata[4];
2717 float LightVectorslope[4];
2718 float EyeVectordata[4];
2719 float EyeVectorslope[4];
2721 float diffusetex[4];
2723 float surfacenormal[4];
2724 float lightnormal[4];
2726 float specularnormal[4];
2729 float SpecularPower;
2731 Color_Glow[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+0];
2732 Color_Glow[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+1];
2733 Color_Glow[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Glow*4+2];
2734 Color_Glow[3] = 0.0f;
2735 Color_Ambient[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+0];
2736 Color_Ambient[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+1];
2737 Color_Ambient[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Ambient*4+2];
2738 Color_Ambient[3] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Alpha*4+0];
2739 Color_Pants[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Pants*4+0];
2740 Color_Pants[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Pants*4+1];
2741 Color_Pants[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Pants*4+2];
2742 Color_Pants[3] = 0.0f;
2743 Color_Shirt[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Shirt*4+0];
2744 Color_Shirt[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Shirt*4+1];
2745 Color_Shirt[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Shirt*4+2];
2746 Color_Shirt[3] = 0.0f;
2747 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2748 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_colorbgra8, GL20TU_COLOR, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2749 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_COLORMAPPING)
2751 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_pantsbgra8, GL20TU_PANTS, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2752 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_shirtbgra8, GL20TU_SHIRT, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2754 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GLOW)
2756 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_glowbgra8, GL20TU_GLOW, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2758 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_SPECULAR)
2760 Color_Diffuse[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+0];
2761 Color_Diffuse[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+1];
2762 Color_Diffuse[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+2];
2763 Color_Diffuse[3] = 0.0f;
2764 LightColor[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+0];
2765 LightColor[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+1];
2766 LightColor[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+2];
2767 LightColor[3] = 0.0f;
2768 LightVectordata[0] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][0];
2769 LightVectordata[1] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][1];
2770 LightVectordata[2] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][2];
2771 LightVectordata[3] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][3];
2772 LightVectorslope[0] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][0];
2773 LightVectorslope[1] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][1];
2774 LightVectorslope[2] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][2];
2775 LightVectorslope[3] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][3];
2776 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_normalbgra8, GL20TU_NORMAL, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2777 Color_Specular[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Specular*4+0];
2778 Color_Specular[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Specular*4+1];
2779 Color_Specular[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Specular*4+2];
2780 Color_Specular[3] = 0.0f;
2781 SpecularPower = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_SpecularPower*4+0];
2782 EyeVectordata[0] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD2][0];
2783 EyeVectordata[1] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD2][1];
2784 EyeVectordata[2] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD2][2];
2785 EyeVectordata[3] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD2][3];
2786 EyeVectorslope[0] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD2][0];
2787 EyeVectorslope[1] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD2][1];
2788 EyeVectorslope[2] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD2][2];
2789 EyeVectorslope[3] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD2][3];
2790 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_glossbgra8, GL20TU_GLOSS, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2791 for (x = startx;x < endx;x++)
2794 diffusetex[0] = buffer_texture_colorbgra8[x*4+0];
2795 diffusetex[1] = buffer_texture_colorbgra8[x*4+1];
2796 diffusetex[2] = buffer_texture_colorbgra8[x*4+2];
2797 diffusetex[3] = buffer_texture_colorbgra8[x*4+3];
2798 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_COLORMAPPING)
2800 diffusetex[0] += buffer_texture_pantsbgra8[x*4+0] * Color_Pants[0] + buffer_texture_shirtbgra8[x*4+0] * Color_Shirt[0];
2801 diffusetex[1] += buffer_texture_pantsbgra8[x*4+1] * Color_Pants[1] + buffer_texture_shirtbgra8[x*4+1] * Color_Shirt[1];
2802 diffusetex[2] += buffer_texture_pantsbgra8[x*4+2] * Color_Pants[2] + buffer_texture_shirtbgra8[x*4+2] * Color_Shirt[2];
2803 diffusetex[3] += buffer_texture_pantsbgra8[x*4+3] * Color_Pants[3] + buffer_texture_shirtbgra8[x*4+3] * Color_Shirt[3];
2805 glosstex[0] = buffer_texture_glossbgra8[x*4+0];
2806 glosstex[1] = buffer_texture_glossbgra8[x*4+1];
2807 glosstex[2] = buffer_texture_glossbgra8[x*4+2];
2808 glosstex[3] = buffer_texture_glossbgra8[x*4+3];
2809 surfacenormal[0] = buffer_texture_normalbgra8[x*4+2] * (1.0f / 128.0f) - 1.0f;
2810 surfacenormal[1] = buffer_texture_normalbgra8[x*4+1] * (1.0f / 128.0f) - 1.0f;
2811 surfacenormal[2] = buffer_texture_normalbgra8[x*4+0] * (1.0f / 128.0f) - 1.0f;
2812 DPSOFTRAST_Vector3Normalize(surfacenormal);
2814 lightnormal[0] = (LightVectordata[0] + LightVectorslope[0]*x) * z;
2815 lightnormal[1] = (LightVectordata[1] + LightVectorslope[1]*x) * z;
2816 lightnormal[2] = (LightVectordata[2] + LightVectorslope[2]*x) * z;
2817 DPSOFTRAST_Vector3Normalize(lightnormal);
2819 eyenormal[0] = (EyeVectordata[0] + EyeVectorslope[0]*x) * z;
2820 eyenormal[1] = (EyeVectordata[1] + EyeVectorslope[1]*x) * z;
2821 eyenormal[2] = (EyeVectordata[2] + EyeVectorslope[2]*x) * z;
2822 DPSOFTRAST_Vector3Normalize(eyenormal);
2824 specularnormal[0] = lightnormal[0] + eyenormal[0];
2825 specularnormal[1] = lightnormal[1] + eyenormal[1];
2826 specularnormal[2] = lightnormal[2] + eyenormal[2];
2827 DPSOFTRAST_Vector3Normalize(specularnormal);
2829 diffuse = DPSOFTRAST_Vector3Dot(surfacenormal, lightnormal);if (diffuse < 0.0f) diffuse = 0.0f;
2830 specular = DPSOFTRAST_Vector3Dot(surfacenormal, specularnormal);if (specular < 0.0f) specular = 0.0f;
2831 specular = pow(specular, SpecularPower * glosstex[3]);
2832 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GLOW)
2834 d[0] = (int)(buffer_texture_glowbgra8[x*4+0] * Color_Glow[0] + diffusetex[0] * Color_Ambient[0] + (diffusetex[0] * Color_Diffuse[0] * diffuse + glosstex[0] * Color_Specular[0] * specular) * LightColor[0]);if (d[0] > 255) d[0] = 255;
2835 d[1] = (int)(buffer_texture_glowbgra8[x*4+1] * Color_Glow[1] + diffusetex[1] * Color_Ambient[1] + (diffusetex[1] * Color_Diffuse[1] * diffuse + glosstex[1] * Color_Specular[1] * specular) * LightColor[1]);if (d[1] > 255) d[1] = 255;
2836 d[2] = (int)(buffer_texture_glowbgra8[x*4+2] * Color_Glow[2] + diffusetex[2] * Color_Ambient[2] + (diffusetex[2] * Color_Diffuse[2] * diffuse + glosstex[2] * Color_Specular[2] * specular) * LightColor[2]);if (d[2] > 255) d[2] = 255;
2837 d[3] = (int)( diffusetex[3] * Color_Ambient[3]);if (d[3] > 255) d[3] = 255;
2841 d[0] = (int)( diffusetex[0] * Color_Ambient[0] + (diffusetex[0] * Color_Diffuse[0] * diffuse + glosstex[0] * Color_Specular[0] * specular) * LightColor[0]);if (d[0] > 255) d[0] = 255;
2842 d[1] = (int)( diffusetex[1] * Color_Ambient[1] + (diffusetex[1] * Color_Diffuse[1] * diffuse + glosstex[1] * Color_Specular[1] * specular) * LightColor[1]);if (d[1] > 255) d[1] = 255;
2843 d[2] = (int)( diffusetex[2] * Color_Ambient[2] + (diffusetex[2] * Color_Diffuse[2] * diffuse + glosstex[2] * Color_Specular[2] * specular) * LightColor[2]);if (d[2] > 255) d[2] = 255;
2844 d[3] = (int)( diffusetex[3] * Color_Ambient[3]);if (d[3] > 255) d[3] = 255;
2846 buffer_FragColorbgra8[x*4+0] = d[0];
2847 buffer_FragColorbgra8[x*4+1] = d[1];
2848 buffer_FragColorbgra8[x*4+2] = d[2];
2849 buffer_FragColorbgra8[x*4+3] = d[3];
2852 else if (dpsoftrast.shader_permutation & SHADERPERMUTATION_DIFFUSE)
2854 Color_Diffuse[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+0];
2855 Color_Diffuse[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+1];
2856 Color_Diffuse[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_Color_Diffuse*4+2];
2857 Color_Diffuse[3] = 0.0f;
2858 LightColor[2] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+0];
2859 LightColor[1] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+1];
2860 LightColor[0] = dpsoftrast.uniform4f[DPSOFTRAST_UNIFORM_LightColor*4+2];
2861 LightColor[3] = 0.0f;
2862 LightVectordata[0] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][0];
2863 LightVectordata[1] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][1];
2864 LightVectordata[2] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][2];
2865 LightVectordata[3] = span->data[0][DPSOFTRAST_ARRAY_TEXCOORD1][3];
2866 LightVectorslope[0] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][0];
2867 LightVectorslope[1] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][1];
2868 LightVectorslope[2] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][2];
2869 LightVectorslope[3] = span->data[1][DPSOFTRAST_ARRAY_TEXCOORD1][3];
2870 DPSOFTRAST_Draw_Span_Texture2DVaryingBGRA8(span, buffer_texture_normalbgra8, GL20TU_NORMAL, DPSOFTRAST_ARRAY_TEXCOORD0, buffer_z);
2871 for (x = startx;x < endx;x++)
2874 diffusetex[0] = buffer_texture_colorbgra8[x*4+0];
2875 diffusetex[1] = buffer_texture_colorbgra8[x*4+1];
2876 diffusetex[2] = buffer_texture_colorbgra8[x*4+2];
2877 diffusetex[3] = buffer_texture_colorbgra8[x*4+3];
2878 surfacenormal[0] = buffer_texture_normalbgra8[x*4+2] * (1.0f / 128.0f) - 1.0f;
2879 surfacenormal[1] = buffer_texture_normalbgra8[x*4+1] * (1.0f / 128.0f) - 1.0f;
2880 surfacenormal[2] = buffer_texture_normalbgra8[x*4+0] * (1.0f / 128.0f) - 1.0f;
2881 DPSOFTRAST_Vector3Normalize(surfacenormal);
2883 lightnormal[0] = (LightVectordata[0] + LightVectorslope[0]*x) * z;
2884 lightnormal[1] = (LightVectordata[1] + LightVectorslope[1]*x) * z;
2885 lightnormal[2] = (LightVectordata[2] + LightVectorslope[2]*x) * z;
2886 DPSOFTRAST_Vector3Normalize(lightnormal);
2888 diffuse = DPSOFTRAST_Vector3Dot(surfacenormal, lightnormal);if (diffuse < 0.0f) diffuse = 0.0f;
2889 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GLOW)
2891 d[0] = (int)(buffer_texture_glowbgra8[x*4+0] * Color_Glow[0] + diffusetex[0] * (Color_Ambient[0] + Color_Diffuse[0] * diffuse * LightColor[0]));if (d[0] > 255) d[0] = 255;
2892 d[1] = (int)(buffer_texture_glowbgra8[x*4+1] * Color_Glow[1] + diffusetex[1] * (Color_Ambient[1] + Color_Diffuse[1] * diffuse * LightColor[1]));if (d[1] > 255) d[1] = 255;
2893 d[2] = (int)(buffer_texture_glowbgra8[x*4+2] * Color_Glow[2] + diffusetex[2] * (Color_Ambient[2] + Color_Diffuse[2] * diffuse * LightColor[2]));if (d[2] > 255) d[2] = 255;
2894 d[3] = (int)( diffusetex[3] * (Color_Ambient[3] ));if (d[3] > 255) d[3] = 255;
2898 d[0] = (int)( + diffusetex[0] * (Color_Ambient[0] + Color_Diffuse[0] * diffuse * LightColor[0]));if (d[0] > 255) d[0] = 255;
2899 d[1] = (int)( + diffusetex[1] * (Color_Ambient[1] + Color_Diffuse[1] * diffuse * LightColor[1]));if (d[1] > 255) d[1] = 255;
2900 d[2] = (int)( + diffusetex[2] * (Color_Ambient[2] + Color_Diffuse[2] * diffuse * LightColor[2]));if (d[2] > 255) d[2] = 255;
2901 d[3] = (int)( diffusetex[3] * (Color_Ambient[3] ));if (d[3] > 255) d[3] = 255;
2903 buffer_FragColorbgra8[x*4+0] = d[0];
2904 buffer_FragColorbgra8[x*4+1] = d[1];
2905 buffer_FragColorbgra8[x*4+2] = d[2];
2906 buffer_FragColorbgra8[x*4+3] = d[3];
2911 for (x = startx;x < endx;x++)
2914 diffusetex[0] = buffer_texture_colorbgra8[x*4+0];
2915 diffusetex[1] = buffer_texture_colorbgra8[x*4+1];
2916 diffusetex[2] = buffer_texture_colorbgra8[x*4+2];
2917 diffusetex[3] = buffer_texture_colorbgra8[x*4+3];
2919 if (dpsoftrast.shader_permutation & SHADERPERMUTATION_GLOW)
2921 d[0] = (int)(buffer_texture_glowbgra8[x*4+0] * Color_Glow[0] + diffusetex[0] * Color_Ambient[0]);if (d[0] > 255) d[0] = 255;
2922 d[1] = (int)(buffer_texture_glowbgra8[x*4+1] * Color_Glow[1] + diffusetex[1] * Color_Ambient[1]);if (d[1] > 255) d[1] = 255;
2923 d[2] = (int)(buffer_texture_glowbgra8[x*4+2] * Color_Glow[2] + diffusetex[2] * Color_Ambient[2]);if (d[2] > 255) d[2] = 255;
2924 d[3] = (int)( diffusetex[3] * Color_Ambient[3]);if (d[3] > 255) d[3] = 255;
2928 d[0] = (int)( diffusetex[0] * Color_Ambient[0]);if (d[0] > 255) d[0] = 255;
2929 d[1] = (int)( diffusetex[1] * Color_Ambient[1]);if (d[1] > 255) d[1] = 255;
2930 d[2] = (int)( diffusetex[2] * Color_Ambient[2]);if (d[2] > 255) d[2] = 255;
2931 d[3] = (int)( diffusetex[3] * Color_Ambient[3]);if (d[3] > 255) d[3] = 255;
2933 buffer_FragColorbgra8[x*4+0] = d[0];
2934 buffer_FragColorbgra8[x*4+1] = d[1];
2935 buffer_FragColorbgra8[x*4+2] = d[2];
2936 buffer_FragColorbgra8[x*4+3] = d[3];
2939 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2944 void DPSOFTRAST_VertexShader_LightSource(void)
2946 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2949 void DPSOFTRAST_PixelShader_LightSource(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2952 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2953 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2954 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2955 memset(buffer_FragColorbgra8, 0, span->length*4);
2956 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2961 void DPSOFTRAST_VertexShader_Refraction(void)
2963 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2966 void DPSOFTRAST_PixelShader_Refraction(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2969 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2970 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2971 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2972 memset(buffer_FragColorbgra8, 0, span->length*4);
2973 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2978 void DPSOFTRAST_VertexShader_Water(void)
2980 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
2984 void DPSOFTRAST_PixelShader_Water(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
2987 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
2988 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
2989 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
2990 memset(buffer_FragColorbgra8, 0, span->length*4);
2991 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
2996 void DPSOFTRAST_VertexShader_ShowDepth(void)
2998 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
3001 void DPSOFTRAST_PixelShader_ShowDepth(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
3004 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
3005 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
3006 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
3007 memset(buffer_FragColorbgra8, 0, span->length*4);
3008 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
3013 void DPSOFTRAST_VertexShader_DeferredGeometry(void)
3015 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
3018 void DPSOFTRAST_PixelShader_DeferredGeometry(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
3021 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
3022 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
3023 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
3024 memset(buffer_FragColorbgra8, 0, span->length*4);
3025 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
3030 void DPSOFTRAST_VertexShader_DeferredLightSource(void)
3032 DPSOFTRAST_Array_Transform(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.in_array4f[DPSOFTRAST_ARRAY_POSITION], dpsoftrast.draw.numvertices, dpsoftrast.uniform4f + 4*DPSOFTRAST_UNIFORM_ModelViewProjectionMatrixM1);
3035 void DPSOFTRAST_PixelShader_DeferredLightSource(const DPSOFTRAST_State_Draw_Span * RESTRICT span)
3038 float buffer_z[DPSOFTRAST_DRAW_MAXSPANLENGTH];
3039 unsigned char buffer_FragColorbgra8[DPSOFTRAST_DRAW_MAXSPANLENGTH*4];
3040 DPSOFTRAST_Draw_Span_Begin(span, buffer_z);
3041 memset(buffer_FragColorbgra8, 0, span->length*4);
3042 DPSOFTRAST_Draw_Span_FinishBGRA8(span, buffer_FragColorbgra8);
3047 typedef struct DPSOFTRAST_ShaderModeInfo_s
3050 void (*Vertex)(void);
3051 void (*Span)(const DPSOFTRAST_State_Draw_Span * RESTRICT span);
3053 DPSOFTRAST_ShaderModeInfo;
3055 DPSOFTRAST_ShaderModeInfo DPSOFTRAST_ShaderModeTable[SHADERMODE_COUNT] =
3057 {2, DPSOFTRAST_VertexShader_Generic, DPSOFTRAST_PixelShader_Generic, },
3058 {2, DPSOFTRAST_VertexShader_PostProcess, DPSOFTRAST_PixelShader_PostProcess, },
3059 {2, DPSOFTRAST_VertexShader_Depth_Or_Shadow, DPSOFTRAST_PixelShader_Depth_Or_Shadow, },
3060 {2, DPSOFTRAST_VertexShader_FlatColor, DPSOFTRAST_PixelShader_FlatColor, },
3061 {2, DPSOFTRAST_VertexShader_VertexColor, DPSOFTRAST_PixelShader_VertexColor, },
3062 {2, DPSOFTRAST_VertexShader_Lightmap, DPSOFTRAST_PixelShader_Lightmap, },
3063 {2, DPSOFTRAST_VertexShader_FakeLight, DPSOFTRAST_PixelShader_FakeLight, },
3064 {2, DPSOFTRAST_VertexShader_LightDirectionMap_ModelSpace, DPSOFTRAST_PixelShader_LightDirectionMap_ModelSpace, },
3065 {2, DPSOFTRAST_VertexShader_LightDirectionMap_TangentSpace, DPSOFTRAST_PixelShader_LightDirectionMap_TangentSpace},
3066 {2, DPSOFTRAST_VertexShader_LightDirection, DPSOFTRAST_PixelShader_LightDirection, },
3067 {2, DPSOFTRAST_VertexShader_LightSource, DPSOFTRAST_PixelShader_LightSource, },
3068 {2, DPSOFTRAST_VertexShader_Refraction, DPSOFTRAST_PixelShader_Refraction, },
3069 {2, DPSOFTRAST_VertexShader_Water, DPSOFTRAST_PixelShader_Water, },
3070 {2, DPSOFTRAST_VertexShader_ShowDepth, DPSOFTRAST_PixelShader_ShowDepth, },
3071 {2, DPSOFTRAST_VertexShader_DeferredGeometry, DPSOFTRAST_PixelShader_DeferredGeometry, },
3072 {2, DPSOFTRAST_VertexShader_DeferredLightSource, DPSOFTRAST_PixelShader_DeferredLightSource, }
3077 void DPSOFTRAST_Draw_ProcessSpans(void)
3083 int numspans = dpsoftrast.draw.numspans;
3085 // unsigned int *colorpixel;
3086 unsigned int *depthpixel;
3092 DPSOFTRAST_State_Draw_Span *span = dpsoftrast.draw.spanqueue;
3093 unsigned char pixelmask[DPSOFTRAST_DRAW_MAXSPANLENGTH];
3094 for (i = 0;i < numspans;i++, span++)
3096 w = span->data[0][DPSOFTRAST_ARRAY_TOTAL][3];
3097 wslope = span->data[1][DPSOFTRAST_ARRAY_TOTAL][3];
3098 if (dpsoftrast.user.depthtest && dpsoftrast.fb_depthpixels)
3100 depth = (int)(w*DPSOFTRAST_DEPTHSCALE);
3101 depthslope = (int)(wslope*DPSOFTRAST_DEPTHSCALE);
3102 depthpixel = dpsoftrast.fb_depthpixels + span->start;
3103 switch(dpsoftrast.fb_depthfunc)
3106 case GL_ALWAYS: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = true; break;
3107 case GL_LESS: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = depthpixel[x] < d; break;
3108 case GL_LEQUAL: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = depthpixel[x] <= d; break;
3109 case GL_EQUAL: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = depthpixel[x] == d; break;
3110 case GL_GEQUAL: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = depthpixel[x] >= d; break;
3111 case GL_GREATER: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = depthpixel[x] > d; break;
3112 case GL_NEVER: for (x = 0, d = depth;x < span->length;x++, d += depthslope) pixelmask[x] = false; break;
3114 //colorpixel = dpsoftrast.fb_colorpixels[0] + span->start;
3115 //for (x = 0;x < span->length;x++)
3116 // colorpixel[x] = (depthpixel[x] & 0xFF000000) ? (0x00FF0000) : (depthpixel[x] & 0x00FF0000);
3117 // if there is no color buffer, skip pixel shader
3119 endx = span->length;
3120 while (startx < endx && !pixelmask[startx])
3122 while (endx > startx && !pixelmask[endx-1])
3125 continue; // no pixels to fill
3126 span->pixelmask = pixelmask;
3127 span->startx = startx;
3129 // run pixel shader if appropriate
3130 // do this before running depthmask code, to allow the pixelshader
3131 // to clear pixelmask values for alpha testing
3132 if (dpsoftrast.fb_colorpixels[0] && dpsoftrast.fb_colormask)
3133 DPSOFTRAST_ShaderModeTable[dpsoftrast.shader_mode].Span(span);
3134 if (dpsoftrast.user.depthmask)
3135 for (x = 0, d = depth;x < span->length;x++, d += depthslope)
3141 // no depth testing means we're just dealing with color...
3142 // if there is no color buffer, skip pixel shader
3143 if (dpsoftrast.fb_colorpixels[0] && dpsoftrast.fb_colormask)
3145 memset(pixelmask, 1, span->length);
3146 span->pixelmask = pixelmask;
3148 span->endx = span->length;
3149 DPSOFTRAST_ShaderModeTable[dpsoftrast.shader_mode].Span(span);
3155 void DPSOFTRAST_Draw_ProcessTriangles(int firstvertex, int numtriangles, const int *element3i, const unsigned short *element3s, unsigned char *arraymask)
3157 int cullface = dpsoftrast.user.cullface;
3158 int width = dpsoftrast.fb_width;
3159 int height = dpsoftrast.fb_height;
3177 float mip_edge0tc[2];
3178 float mip_edge1tc[2];
3179 float mip_edge0xy[2];
3180 float mip_edge1xy[2];
3181 float mip_edge0xymul;
3182 float mip_edge1xymul;
3186 unsigned char mip[DPSOFTRAST_MAXTEXTUREUNITS];
3201 float trianglearea2;
3202 float triangleedge[2][4];
3203 float trianglenormal[4];
3205 float clipped[DPSOFTRAST_ARRAY_TOTAL][4][4];
3207 float proj[DPSOFTRAST_ARRAY_TOTAL][4][4];
3208 DPSOFTRAST_Texture *texture;
3209 DPSOFTRAST_State_Draw_Span *span;
3210 DPSOFTRAST_State_Draw_Span *oldspan;
3211 for (i = 0;i < numtriangles;i++)
3213 // generate the 3 edges of this triangle
3214 // generate spans for the triangle - switch based on left split or right split classification of triangle
3217 e[0] = element3i[i*3+0] - firstvertex;
3218 e[1] = element3i[i*3+1] - firstvertex;
3219 e[2] = element3i[i*3+2] - firstvertex;
3223 e[0] = element3s[i*3+0] - firstvertex;
3224 e[1] = element3s[i*3+1] - firstvertex;
3225 e[2] = element3s[i*3+2] - firstvertex;
3233 triangleedge[0][0] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[0]*4+0] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+0];
3234 triangleedge[0][1] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[0]*4+1] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+1];
3235 triangleedge[0][2] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[0]*4+2] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+2];
3236 triangleedge[1][0] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[2]*4+0] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+0];
3237 triangleedge[1][1] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[2]*4+1] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+1];
3238 triangleedge[1][2] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[2]*4+2] - dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+2];
3239 trianglenormal[0] = triangleedge[0][1] * triangleedge[1][2] - triangleedge[0][2] * triangleedge[1][1];
3240 trianglenormal[1] = triangleedge[0][2] * triangleedge[1][0] - triangleedge[0][0] * triangleedge[1][2];
3241 trianglenormal[2] = triangleedge[0][0] * triangleedge[1][1] - triangleedge[0][1] * triangleedge[1][0];
3242 trianglearea2 = trianglenormal[0] * trianglenormal[0] + trianglenormal[1] * trianglenormal[1] + trianglenormal[2] * trianglenormal[2];
3243 // skip degenerate triangles, nothing good can come from them...
3244 if (trianglearea2 == 0.0f)
3246 // apply current cullface mode (this culls many triangles)
3250 if (trianglenormal[2] < 0)
3254 if (trianglenormal[2] > 0)
3258 // calculate distance from nearplane
3259 clipdist[0] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[0]*4+2] + 1.0f;
3260 clipdist[1] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[1]*4+2] + 1.0f;
3261 clipdist[2] = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][e[2]*4+2] + 1.0f;
3263 if (clipdist[0] < 0.0f)
3265 if (clipdist[1] < 0.0f)
3267 if (clipdist[2] < 0.0f)
3269 // clip triangle if necessary
3273 // triangle is entirely in front of nearplane
3275 // macros for clipping vertices
3276 #define CLIPPEDVERTEXLERP(k,p1,p2) \
3277 frac = clipdist[p1] / (clipdist[p1] - clipdist[p2]);\
3278 ifrac = 1.0f - frac;\
3279 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)\
3281 /*if (arraymask[j])*/\
3283 clipped[j][k][0] = dpsoftrast.draw.post_array4f[j][e[p1]*4+0]*ifrac+dpsoftrast.draw.post_array4f[j][e[p2]*4+0]*frac;\
3284 clipped[j][k][1] = dpsoftrast.draw.post_array4f[j][e[p1]*4+1]*ifrac+dpsoftrast.draw.post_array4f[j][e[p2]*4+1]*frac;\
3285 clipped[j][k][2] = dpsoftrast.draw.post_array4f[j][e[p1]*4+2]*ifrac+dpsoftrast.draw.post_array4f[j][e[p2]*4+2]*frac;\
3286 clipped[j][k][3] = dpsoftrast.draw.post_array4f[j][e[p1]*4+3]*ifrac+dpsoftrast.draw.post_array4f[j][e[p2]*4+3]*frac;\
3289 DPSOFTRAST_Draw_ProjectVertices(screen[k], clipped[DPSOFTRAST_ARRAY_POSITION][k], 1)
3290 #define CLIPPEDVERTEXCOPY(k,p1) \
3291 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)\
3293 /*if (arraymask[j])*/\
3295 clipped[j][k][0] = dpsoftrast.draw.post_array4f[j][e[p1]*4+0];\
3296 clipped[j][k][1] = dpsoftrast.draw.post_array4f[j][e[p1]*4+1];\
3297 clipped[j][k][2] = dpsoftrast.draw.post_array4f[j][e[p1]*4+2];\
3298 clipped[j][k][3] = dpsoftrast.draw.post_array4f[j][e[p1]*4+3];\
3301 screen[k][0] = dpsoftrast.draw.screencoord4f[e[p1]*4+0];\
3302 screen[k][1] = dpsoftrast.draw.screencoord4f[e[p1]*4+1];\
3303 screen[k][2] = dpsoftrast.draw.screencoord4f[e[p1]*4+2];\
3304 screen[k][3] = dpsoftrast.draw.screencoord4f[e[p1]*4+3];
3306 CLIPPEDVERTEXCOPY(0,0);
3307 CLIPPEDVERTEXCOPY(1,1);
3308 CLIPPEDVERTEXCOPY(2,2);
3312 CLIPPEDVERTEXLERP(0,0,1);
3313 CLIPPEDVERTEXCOPY(1,1);
3314 CLIPPEDVERTEXCOPY(2,2);
3315 CLIPPEDVERTEXLERP(3,2,0);
3319 CLIPPEDVERTEXCOPY(0,0);
3320 CLIPPEDVERTEXLERP(1,0,1);
3321 CLIPPEDVERTEXLERP(2,1,2);
3322 CLIPPEDVERTEXCOPY(3,2);
3326 CLIPPEDVERTEXLERP(0,1,2);
3327 CLIPPEDVERTEXCOPY(1,2);
3328 CLIPPEDVERTEXLERP(2,2,0);
3332 CLIPPEDVERTEXCOPY(0,0);
3333 CLIPPEDVERTEXCOPY(1,1);
3334 CLIPPEDVERTEXLERP(2,1,2);
3335 CLIPPEDVERTEXLERP(3,2,0);
3339 CLIPPEDVERTEXLERP(0,0,1);
3340 CLIPPEDVERTEXCOPY(1,1);
3341 CLIPPEDVERTEXLERP(2,1,2);
3345 CLIPPEDVERTEXCOPY(0,0);
3346 CLIPPEDVERTEXLERP(1,0,1);
3347 CLIPPEDVERTEXLERP(2,2,0);
3351 // triangle is entirely behind nearplane
3354 // calculate integer y coords for triangle points
3355 screenx[0] = (int)(screen[0][0]);
3356 screeny[0] = (int)(screen[0][1]);
3357 screenx[1] = (int)(screen[1][0]);
3358 screeny[1] = (int)(screen[1][1]);
3359 screenx[2] = (int)(screen[2][0]);
3360 screeny[2] = (int)(screen[2][1]);
3361 screenx[3] = (int)(screen[3][0]);
3362 screeny[3] = (int)(screen[3][1]);
3363 // figure out the extents (bounding box) of the triangle
3364 extent[0] = screenx[0];
3365 extent[1] = screeny[0];
3366 extent[2] = screenx[0];
3367 extent[3] = screeny[0];
3368 for (j = 1;j < numpoints;j++)
3370 if (extent[0] > screenx[j]) extent[0] = screenx[j];
3371 if (extent[1] > screeny[j]) extent[1] = screeny[j];
3372 if (extent[2] < screenx[j]) extent[2] = screenx[j];
3373 if (extent[3] < screeny[j]) extent[3] = screeny[j];
3383 if (extent[2] > width)
3385 if (extent[3] > height)
3387 // skip offscreen triangles
3388 if (extent[2] <= extent[0] || extent[3] <= extent[1])
3390 // okay, this triangle is going to produce spans, we'd better project
3391 // the interpolants now (this is what gives perspective texturing),
3392 // this consists of simply multiplying all arrays by the W coord
3393 // (which is basically 1/Z), which will be undone per-pixel
3394 // (multiplying by Z again) to get the perspective-correct array
3396 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3400 for (k = 0;k < numpoints;k++)
3403 proj[j][k][0] = clipped[j][k][0] * w;
3404 proj[j][k][1] = clipped[j][k][1] * w;
3405 proj[j][k][2] = clipped[j][k][2] * w;
3406 proj[j][k][3] = clipped[j][k][3] * w;
3410 // adjust texture LOD by texture density, in the simplest way possible...
3411 mip_edge0xy[0] = screen[0][0] - screen[1][0];
3412 mip_edge0xy[1] = screen[0][1] - screen[1][1];
3413 mip_edge1xy[0] = screen[2][0] - screen[1][0];
3414 mip_edge1xy[1] = screen[2][1] - screen[1][1];
3415 mip_edge0xymul = 1.0f / (mip_edge0xy[0]*mip_edge0xy[0]+mip_edge0xy[1]*mip_edge0xy[1]);
3416 mip_edge1xymul = 1.0f / (mip_edge1xy[0]*mip_edge1xy[0]+mip_edge1xy[1]*mip_edge1xy[1]);
3417 for (j = 0;j < DPSOFTRAST_MAXTEXTUREUNITS;j++)
3419 texture = dpsoftrast.texbound[j];
3422 if (texture->filter <= DPSOFTRAST_TEXTURE_FILTER_LINEAR)
3427 k = DPSOFTRAST_ShaderModeTable[dpsoftrast.shader_mode].lodarrayindex;
3428 mip_edge0tc[0] = (clipped[k][0][0] - clipped[k][1][0]) * texture->mipmap[0][2];
3429 mip_edge0tc[1] = (clipped[k][0][1] - clipped[k][1][1]) * texture->mipmap[0][3];
3430 mip_edge1tc[0] = (clipped[k][2][0] - clipped[k][1][0]) * texture->mipmap[0][2];
3431 mip_edge1tc[1] = (clipped[k][2][1] - clipped[k][1][1]) * texture->mipmap[0][3];
3432 mip_edge0mip = (mip_edge0tc[0]*mip_edge0tc[0]+mip_edge0tc[1]*mip_edge0tc[1]) * mip_edge0xymul;
3433 mip_edge1mip = (mip_edge1tc[0]*mip_edge1tc[0]+mip_edge1tc[1]*mip_edge1tc[1]) * mip_edge1xymul;
3434 // this will be multiplied in the texturing routine by the texture resolution
3435 mipdensity = mip_edge0mip < mip_edge1mip ? mip_edge0mip : mip_edge1mip;
3436 y = (int)(log(mipdensity)/log(2.0f));
3439 if (y > texture->mipmaps - 1)
3440 y = texture->mipmaps - 1;
3444 // iterate potential spans
3445 // TODO: optimize? if we figured out the edge order beforehand, this
3446 // could do loops over the edges in the proper order rather than
3447 // selecting them for each span
3448 // TODO: optimize? the edges could have data slopes calculated
3449 // TODO: optimize? the data slopes could be calculated as a plane
3450 // (2D slopes) to avoid any interpolation along edges at all
3451 for (y = extent[1];y < extent[3];y++)
3453 // get center of pixel y
3455 // do the compares all at once
3456 screenyless[0] = y <= screeny[0];
3457 screenyless[1] = y <= screeny[1];
3458 screenyless[2] = y <= screeny[2];
3459 screenyless[3] = y <= screeny[3];
3462 switch(screenyless[0] + screenyless[1] * 2 + screenyless[2] * 4 + screenyless[3] * 8)
3464 case 0: /*0000*/ continue;
3465 case 1: /*1000*/ edge0p = 3;edge0n = 0;edge1p = 0;edge1n = 1;break;
3466 case 2: /*0100*/ edge0p = 0;edge0n = 1;edge1p = 1;edge1n = 2;break;
3467 case 3: /*1100*/ edge0p = 3;edge0n = 0;edge1p = 1;edge1n = 2;break;
3468 case 4: /*0010*/ edge0p = 1;edge0n = 2;edge1p = 2;edge1n = 3;break;
3469 case 5: /*1010*/ edge0p = 1;edge0n = 2;edge1p = 2;edge1n = 3;break; // concave - nonsense
3470 case 6: /*0110*/ edge0p = 0;edge0n = 1;edge1p = 2;edge1n = 3;break;
3471 case 7: /*1110*/ edge0p = 3;edge0n = 0;edge1p = 2;edge1n = 3;break;
3472 case 8: /*0001*/ edge0p = 2;edge0n = 3;edge1p = 3;edge1n = 0;break;
3473 case 9: /*1001*/ edge0p = 2;edge0n = 3;edge1p = 0;edge1n = 1;break;
3474 case 10: /*0101*/ edge0p = 2;edge0n = 3;edge1p = 1;edge1n = 2;break; // concave - nonsense
3475 case 11: /*1101*/ edge0p = 2;edge0n = 3;edge1p = 1;edge1n = 2;break;
3476 case 12: /*0011*/ edge0p = 1;edge0n = 2;edge1p = 3;edge1n = 0;break;
3477 case 13: /*1011*/ edge0p = 1;edge0n = 2;edge1p = 0;edge1n = 1;break;
3478 case 14: /*0111*/ edge0p = 0;edge0n = 1;edge1p = 3;edge1n = 0;break;
3479 case 15: /*1111*/ continue;
3484 switch(screenyless[0] + screenyless[1] * 2 + screenyless[2] * 4)
3486 case 0: /*000*/ continue;
3487 case 1: /*100*/ edge0p = 2;edge0n = 0;edge1p = 0;edge1n = 1;break;
3488 case 2: /*010*/ edge0p = 0;edge0n = 1;edge1p = 1;edge1n = 2;break;
3489 case 3: /*110*/ edge0p = 2;edge0n = 0;edge1p = 1;edge1n = 2;break;
3490 case 4: /*001*/ edge0p = 1;edge0n = 2;edge1p = 2;edge1n = 0;break;
3491 case 5: /*101*/ edge0p = 1;edge0n = 2;edge1p = 0;edge1n = 1;break;
3492 case 6: /*011*/ edge0p = 0;edge0n = 1;edge1p = 2;edge1n = 0;break;
3493 case 7: /*111*/ continue;
3503 for (j = 0, k = numpoints-1;j < numpoints;k = j, j++)
3505 if (screenyless[k] && !screenyless[j])
3511 else if (screenyless[j] && !screenyless[k])
3518 if (foundedges != 3)
3520 if (cedge0p != edge0p || cedge0n != edge0n || cedge1p != edge1p || cedge1n != edge1n)
3523 printf("case %i%i%i%i is broken %i %i %i %i != %i %i %i %i\n", screenyless[0], screenyless[1], screenyless[2], screenyless[3], cedge0p, cedge0n, cedge1p, cedge1n, edge0p, edge0n, edge1p, edge1n);
3525 printf("case %i%i%i is broken %i %i %i %i != %i %i %i %i\n", screenyless[0], screenyless[1], screenyless[2], cedge0p, cedge0n, cedge1p, cedge1n, edge0p, edge0n, edge1p, edge1n);
3529 edge0ylerp = (yc - screen[edge0p][1]) / (screen[edge0n][1] - screen[edge0p][1]);
3530 edge1ylerp = (yc - screen[edge1p][1]) / (screen[edge1n][1] - screen[edge1p][1]);
3531 if (edge0ylerp < 0 || edge0ylerp > 1 || edge1ylerp < 0 || edge1ylerp > 1)
3533 edge0yilerp = 1.0f - edge0ylerp;
3534 edge1yilerp = 1.0f - edge1ylerp;
3535 edge0xf = screen[edge0p][0] * edge0yilerp + screen[edge0n][0] * edge0ylerp;
3536 edge1xf = screen[edge1p][0] * edge1yilerp + screen[edge1n][0] * edge1ylerp;
3537 if (edge0xf < edge1xf)
3547 startx = (int)ceil(startxf);
3548 endx = (int)ceil(endxf);
3555 if (startxf > startx || endxf < endx-1) { printf("%s:%i X wrong (%i to %i is outside %f to %f)\n", __FILE__, __LINE__, startx, endx, startxf, endxf); }
3556 spanilength = 1.0f / (endxf - startxf);
3557 startxlerp = startx - startxf;
3558 span = &dpsoftrast.draw.spanqueue[dpsoftrast.draw.numspans++];
3559 memcpy(span->mip, mip, sizeof(span->mip));
3560 span->start = y * width + startx;
3561 span->length = endx - startx;
3562 j = DPSOFTRAST_ARRAY_TOTAL;
3563 if (edge0xf < edge1xf)
3565 span->data[0][j][0] = screen[edge0p][0] * edge0yilerp + screen[edge0n][0] * edge0ylerp;
3566 span->data[0][j][1] = screen[edge0p][1] * edge0yilerp + screen[edge0n][1] * edge0ylerp;
3567 span->data[0][j][2] = screen[edge0p][2] * edge0yilerp + screen[edge0n][2] * edge0ylerp;
3568 span->data[0][j][3] = screen[edge0p][3] * edge0yilerp + screen[edge0n][3] * edge0ylerp;
3569 span->data[1][j][0] = screen[edge1p][0] * edge1yilerp + screen[edge1n][0] * edge1ylerp;
3570 span->data[1][j][1] = screen[edge1p][1] * edge1yilerp + screen[edge1n][1] * edge1ylerp;
3571 span->data[1][j][2] = screen[edge1p][2] * edge1yilerp + screen[edge1n][2] * edge1ylerp;
3572 span->data[1][j][3] = screen[edge1p][3] * edge1yilerp + screen[edge1n][3] * edge1ylerp;
3573 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3577 span->data[0][j][0] = proj[j][edge0p][0] * edge0yilerp + proj[j][edge0n][0] * edge0ylerp;
3578 span->data[0][j][1] = proj[j][edge0p][1] * edge0yilerp + proj[j][edge0n][1] * edge0ylerp;
3579 span->data[0][j][2] = proj[j][edge0p][2] * edge0yilerp + proj[j][edge0n][2] * edge0ylerp;
3580 span->data[0][j][3] = proj[j][edge0p][3] * edge0yilerp + proj[j][edge0n][3] * edge0ylerp;
3581 span->data[1][j][0] = proj[j][edge1p][0] * edge1yilerp + proj[j][edge1n][0] * edge1ylerp;
3582 span->data[1][j][1] = proj[j][edge1p][1] * edge1yilerp + proj[j][edge1n][1] * edge1ylerp;
3583 span->data[1][j][2] = proj[j][edge1p][2] * edge1yilerp + proj[j][edge1n][2] * edge1ylerp;
3584 span->data[1][j][3] = proj[j][edge1p][3] * edge1yilerp + proj[j][edge1n][3] * edge1ylerp;
3590 span->data[0][j][0] = screen[edge1p][0] * edge1yilerp + screen[edge1n][0] * edge1ylerp;
3591 span->data[0][j][1] = screen[edge1p][1] * edge1yilerp + screen[edge1n][1] * edge1ylerp;
3592 span->data[0][j][2] = screen[edge1p][2] * edge1yilerp + screen[edge1n][2] * edge1ylerp;
3593 span->data[0][j][3] = screen[edge1p][3] * edge1yilerp + screen[edge1n][3] * edge1ylerp;
3594 span->data[1][j][0] = screen[edge0p][0] * edge0yilerp + screen[edge0n][0] * edge0ylerp;
3595 span->data[1][j][1] = screen[edge0p][1] * edge0yilerp + screen[edge0n][1] * edge0ylerp;
3596 span->data[1][j][2] = screen[edge0p][2] * edge0yilerp + screen[edge0n][2] * edge0ylerp;
3597 span->data[1][j][3] = screen[edge0p][3] * edge0yilerp + screen[edge0n][3] * edge0ylerp;
3598 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3602 span->data[0][j][0] = proj[j][edge1p][0] * edge1yilerp + proj[j][edge1n][0] * edge1ylerp;
3603 span->data[0][j][1] = proj[j][edge1p][1] * edge1yilerp + proj[j][edge1n][1] * edge1ylerp;
3604 span->data[0][j][2] = proj[j][edge1p][2] * edge1yilerp + proj[j][edge1n][2] * edge1ylerp;
3605 span->data[0][j][3] = proj[j][edge1p][3] * edge1yilerp + proj[j][edge1n][3] * edge1ylerp;
3606 span->data[1][j][0] = proj[j][edge0p][0] * edge0yilerp + proj[j][edge0n][0] * edge0ylerp;
3607 span->data[1][j][1] = proj[j][edge0p][1] * edge0yilerp + proj[j][edge0n][1] * edge0ylerp;
3608 span->data[1][j][2] = proj[j][edge0p][2] * edge0yilerp + proj[j][edge0n][2] * edge0ylerp;
3609 span->data[1][j][3] = proj[j][edge0p][3] * edge0yilerp + proj[j][edge0n][3] * edge0ylerp;
3613 // change data[1][n][] to be a data slope
3614 j = DPSOFTRAST_ARRAY_TOTAL;
3615 span->data[1][j][0] = (span->data[1][j][0] - span->data[0][j][0]) * spanilength;
3616 span->data[1][j][1] = (span->data[1][j][1] - span->data[0][j][1]) * spanilength;
3617 span->data[1][j][2] = (span->data[1][j][2] - span->data[0][j][2]) * spanilength;
3618 span->data[1][j][3] = (span->data[1][j][3] - span->data[0][j][3]) * spanilength;
3619 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3623 span->data[1][j][0] = (span->data[1][j][0] - span->data[0][j][0]) * spanilength;
3624 span->data[1][j][1] = (span->data[1][j][1] - span->data[0][j][1]) * spanilength;
3625 span->data[1][j][2] = (span->data[1][j][2] - span->data[0][j][2]) * spanilength;
3626 span->data[1][j][3] = (span->data[1][j][3] - span->data[0][j][3]) * spanilength;
3629 // adjust the data[0][n][] to be correct for the pixel centers
3630 // this also handles horizontal clipping where a major part of the
3631 // span may be off the left side of the screen
3632 j = DPSOFTRAST_ARRAY_TOTAL;
3633 span->data[0][j][0] += span->data[1][j][0] * startxlerp;
3634 span->data[0][j][1] += span->data[1][j][1] * startxlerp;
3635 span->data[0][j][2] += span->data[1][j][2] * startxlerp;
3636 span->data[0][j][3] += span->data[1][j][3] * startxlerp;
3637 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3641 span->data[0][j][0] += span->data[1][j][0] * startxlerp;
3642 span->data[0][j][1] += span->data[1][j][1] * startxlerp;
3643 span->data[0][j][2] += span->data[1][j][2] * startxlerp;
3644 span->data[0][j][3] += span->data[1][j][3] * startxlerp;
3647 // to keep the shader routines from needing more than a small
3648 // buffer for pixel intermediate data, we split long spans...
3649 while (span->length > DPSOFTRAST_DRAW_MAXSPANLENGTH)
3651 span->length = DPSOFTRAST_DRAW_MAXSPANLENGTH;
3652 if (dpsoftrast.draw.numspans >= DPSOFTRAST_DRAW_MAXSPANQUEUE)
3654 DPSOFTRAST_Draw_ProcessSpans();
3655 dpsoftrast.draw.numspans = 0;
3658 span = &dpsoftrast.draw.spanqueue[dpsoftrast.draw.numspans++];
3660 startx += DPSOFTRAST_DRAW_MAXSPANLENGTH;
3661 span->start = y * width + startx;
3662 span->length = endx - startx;
3663 j = DPSOFTRAST_ARRAY_TOTAL;
3664 span->data[0][j][0] += span->data[1][j][0] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3665 span->data[0][j][1] += span->data[1][j][1] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3666 span->data[0][j][2] += span->data[1][j][2] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3667 span->data[0][j][3] += span->data[1][j][3] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3668 for (j = 0;j < DPSOFTRAST_ARRAY_TOTAL;j++)
3672 span->data[0][j][0] += span->data[1][j][0] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3673 span->data[0][j][1] += span->data[1][j][1] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3674 span->data[0][j][2] += span->data[1][j][2] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3675 span->data[0][j][3] += span->data[1][j][3] * DPSOFTRAST_DRAW_MAXSPANLENGTH;
3679 // after all that, we have a span suitable for the pixel shader...
3680 if (dpsoftrast.draw.numspans >= DPSOFTRAST_DRAW_MAXSPANQUEUE)
3682 DPSOFTRAST_Draw_ProcessSpans();
3683 dpsoftrast.draw.numspans = 0;
3686 // draw outlines over triangle for debugging
3687 // for (j = 0, k = numpoints-1;j < numpoints;k = j, j++)
3688 // DPSOFTRAST_Draw_DebugEdgePoints(screen[k], screen[j]);
3690 if (dpsoftrast.draw.numspans)
3692 DPSOFTRAST_Draw_ProcessSpans();
3693 dpsoftrast.draw.numspans = 0;
3697 void DPSOFTRAST_Draw_DebugPoints(void)
3702 int numvertices = dpsoftrast.draw.numvertices;
3703 int w = dpsoftrast.fb_width;
3705 unsigned int *pixels = dpsoftrast.fb_colorpixels[0];
3707 bounds[0] = dpsoftrast.fb_viewportscissor[0];
3708 bounds[1] = dpsoftrast.fb_viewportscissor[1];
3709 bounds[2] = dpsoftrast.fb_viewportscissor[0] + dpsoftrast.fb_viewportscissor[2];
3710 bounds[3] = dpsoftrast.fb_viewportscissor[1] + dpsoftrast.fb_viewportscissor[3];
3711 for (i = 0;i < numvertices;i++)
3714 //if (dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+3] != 1.0f)
3716 x = (int)(dpsoftrast.draw.screencoord4f[i*4+0]);
3717 y = (int)(dpsoftrast.draw.screencoord4f[i*4+1]);
3718 //x = (int)(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+0] + 0.5f);
3719 //y = (int)(dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+1] + 0.5f);
3720 //x = (int)((dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+0] + 1.0f) * dpsoftrast.fb_width * 0.5f + 0.5f);
3721 //y = (int)((dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION][i*4+1] + 1.0f) * dpsoftrast.fb_height * 0.5f + 0.5f);
3722 if (x < bounds[0] || y < bounds[1] || x >= bounds[2] || y >= bounds[3])
3724 c4f = dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_COLOR] + i*4;
3725 pixels[y*w+x] = DPSOFTRAST_BGRA8_FROM_RGBA32F(c4f[0], c4f[1], c4f[2], c4f[3]);
3729 void DPSOFTRAST_DrawTriangles(int firstvertex, int numvertices, int numtriangles, const int *element3i, const unsigned short *element3s)
3731 unsigned char arraymask[DPSOFTRAST_ARRAY_TOTAL];
3732 arraymask[0] = true;
3733 arraymask[1] = dpsoftrast.fb_colorpixels[0] != NULL; // TODO: optimize (decide based on shadermode)
3734 arraymask[2] = dpsoftrast.pointer_texcoordf[0] != NULL;
3735 arraymask[3] = dpsoftrast.pointer_texcoordf[1] != NULL;
3736 arraymask[4] = dpsoftrast.pointer_texcoordf[2] != NULL;
3737 arraymask[5] = dpsoftrast.pointer_texcoordf[3] != NULL;
3738 arraymask[6] = dpsoftrast.pointer_texcoordf[4] != NULL;
3739 arraymask[7] = dpsoftrast.pointer_texcoordf[5] != NULL;
3740 arraymask[8] = dpsoftrast.pointer_texcoordf[6] != NULL;
3741 arraymask[9] = dpsoftrast.pointer_texcoordf[7] != NULL;
3742 DPSOFTRAST_Validate(DPSOFTRAST_VALIDATE_DRAW);
3743 DPSOFTRAST_Draw_LoadVertices(firstvertex, numvertices, true);
3744 DPSOFTRAST_ShaderModeTable[dpsoftrast.shader_mode].Vertex();
3745 DPSOFTRAST_Draw_ProjectVertices(dpsoftrast.draw.screencoord4f, dpsoftrast.draw.post_array4f[DPSOFTRAST_ARRAY_POSITION], numvertices);
3746 DPSOFTRAST_Draw_ProcessTriangles(firstvertex, numtriangles, element3i, element3s, arraymask);
3749 void DPSOFTRAST_Init(int width, int height, unsigned int *colorpixels, unsigned int *depthpixels)
3758 memset(&dpsoftrast, 0, sizeof(dpsoftrast));
3759 dpsoftrast.bigendian = u.b[3];
3760 dpsoftrast.fb_width = width;
3761 dpsoftrast.fb_height = height;
3762 dpsoftrast.fb_depthpixels = depthpixels;
3763 dpsoftrast.fb_colorpixels[0] = colorpixels;
3764 dpsoftrast.fb_colorpixels[1] = NULL;
3765 dpsoftrast.fb_colorpixels[1] = NULL;
3766 dpsoftrast.fb_colorpixels[1] = NULL;
3767 dpsoftrast.texture_firstfree = 1;
3768 dpsoftrast.texture_end = 1;
3769 dpsoftrast.texture_max = 0;
3770 dpsoftrast.user.colormask[0] = 1;
3771 dpsoftrast.user.colormask[1] = 1;
3772 dpsoftrast.user.colormask[2] = 1;
3773 dpsoftrast.user.colormask[3] = 1;
3774 dpsoftrast.user.blendfunc[0] = GL_ONE;
3775 dpsoftrast.user.blendfunc[1] = GL_ZERO;
3776 dpsoftrast.user.depthmask = true;
3777 dpsoftrast.user.depthtest = true;
3778 dpsoftrast.user.depthfunc = GL_LEQUAL;
3779 dpsoftrast.user.scissortest = false;
3780 dpsoftrast.user.cullface = GL_BACK;
3781 dpsoftrast.user.alphatest = false;
3782 dpsoftrast.user.alphafunc = GL_GREATER;
3783 dpsoftrast.user.alphavalue = 0.5f;
3784 dpsoftrast.user.scissor[0] = 0;
3785 dpsoftrast.user.scissor[1] = 0;
3786 dpsoftrast.user.scissor[2] = dpsoftrast.fb_width;
3787 dpsoftrast.user.scissor[3] = dpsoftrast.fb_height;
3788 dpsoftrast.user.viewport[0] = 0;
3789 dpsoftrast.user.viewport[1] = 0;
3790 dpsoftrast.user.viewport[2] = dpsoftrast.fb_width;
3791 dpsoftrast.user.viewport[3] = dpsoftrast.fb_height;
3792 dpsoftrast.user.depthrange[0] = 0;
3793 dpsoftrast.user.depthrange[1] = 1;
3794 dpsoftrast.user.polygonoffset[0] = 0;
3795 dpsoftrast.user.polygonoffset[1] = 0;
3796 dpsoftrast.user.color[0] = 1;
3797 dpsoftrast.user.color[1] = 1;
3798 dpsoftrast.user.color[2] = 1;
3799 dpsoftrast.user.color[3] = 1;
3800 dpsoftrast.validate = -1;
3801 DPSOFTRAST_Validate(-1);
3802 dpsoftrast.validate = 0;
3805 void DPSOFTRAST_Shutdown(void)
3808 for (i = 0;i < dpsoftrast.texture_end;i++)
3809 if (dpsoftrast.texture[i].bytes)
3810 free(dpsoftrast.texture[i].bytes);
3811 if (dpsoftrast.texture)
3812 free(dpsoftrast.texture);
3813 memset(&dpsoftrast, 0, sizeof(dpsoftrast));