int main()
{
    //******************************************
    //doubles
    //These are loooong floats with and without exponents
    float looong_simple_float = 1.111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111;
    func_float(looong_simple_float);

    float looong_simple_float_exp = 1.21111111111111111111111111111111111111111111111111111111111111111111111111111e11;
    func_float(looong_simple_float_exp);


    //These are loooong floats with and without exponents. 
    //These *have* to be floats (in internal representation), because of the subscripts f
    float looong_simple_float_subscript = 1.311111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111f;
    func_float(looong_simple_float_subscript);

    float looong_simple_float_exp_subscript = 1.411111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111e11111111f;
    func_float(looong_simple_float_exp_subscript);



    //******************************************
    //doubles
    //These are loooong doubles with and without exponents
    double looong_simple_double = 2.122222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222;
    func_double(looong_simple_double);

    double looong_simple_double_exp = 2.22222222222222222222222222222222222222222222222222222222222222222222222222222e122;
    func_double(looong_simple_double_exp);


    //These are loooong doubles with and without exponents. 
    //These *have* to be doubles (in internal representation), because of no subscript
    double looong_simple_double_subscript = 2.322222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222f;
    func_double(looong_simple_double_subscript);

    double looong_simple_double_exp_subscript = 2.422222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222222e12f;
    func_double(looong_simple_double_exp_subscript);


    //loong long doubles
    //These are loooong long doubles with and without exponents
    long double looong_simple_long_double = 3.133333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333;
    func_long_double(looong_simple_long_double);

    long double looong_simple_long_double_exp = 3.23333333333333333333333333333333333333333333333333333333333333333333333333333e133;
    func_long_double(looong_simple_long_double_exp);


    //These are loooong long doubles with and without exponents. 
    //These *have* to be long doubles (in internal representation), because of the subscripts l
    ////lookout for the L or l at the end
    long double looong_simple_long_double_subscript = 3.333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333L;
    func_long_double(looong_simple_long_double_subscript);

    long double looong_simple_long_double_exp_subscript = 3.433333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333333e133L;
    func_long_double(looong_simple_long_double_exp_subscript);


    printf("Hello\n");
    return 1;
}
Exemple #2
0
void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask, unsigned short *curvemask,
                   unsigned short *texmask, float mask_max,
                   int destx,  int desty, int origx, int origy, int srcx, int srcy, int width, int height,
                   IMB_BlendMode mode, bool accumulate)
{
	unsigned int *drect = NULL, *orect = NULL, *srect = NULL, *dr, *or, *sr;
	float *drectf = NULL, *orectf = NULL, *srectf = NULL, *drf, *orf, *srf;
	unsigned short *cmaskrect = curvemask, *cmr;
	unsigned short *dmaskrect = dmask, *dmr;
	unsigned short *texmaskrect = texmask, *tmr;
	int do_float, do_char, srcskip, destskip, origskip, x;
	IMB_blend_func func = NULL;
	IMB_blend_func_float func_float = NULL;

	if (dbuf == NULL || obuf == NULL) return;

	imb_rectclip3(dbuf, obuf, sbuf, &destx, &desty, &origx, &origy, &srcx, &srcy, &width, &height);

	if (width == 0 || height == 0) return;
	if (sbuf && sbuf->channels != 4) return;
	if (dbuf->channels != 4) return;

	do_char = (sbuf && sbuf->rect && dbuf->rect && obuf->rect);
	do_float = (sbuf && sbuf->rect_float && dbuf->rect_float && obuf->rect_float);

	if (do_char) {
		drect = dbuf->rect + ((size_t)desty) * dbuf->x + destx;
		orect = obuf->rect + ((size_t)origy) * obuf->x + origx;
	}
	if (do_float) {
		drectf = dbuf->rect_float + (((size_t)desty) * dbuf->x + destx) * 4;
		orectf = obuf->rect_float + (((size_t)origy) * obuf->x + origx) * 4;
	}

	if (dmaskrect)
		dmaskrect += ((size_t)origy) * obuf->x + origx;

	destskip = dbuf->x;
	origskip = obuf->x;

	if (sbuf) {
		if (do_char) srect = sbuf->rect + ((size_t)srcy) * sbuf->x + srcx;
		if (do_float) srectf = sbuf->rect_float + (((size_t)srcy) * sbuf->x + srcx) * 4;
		srcskip = sbuf->x;

		if (cmaskrect)
			cmaskrect += ((size_t)srcy) * sbuf->x + srcx;

		if (texmaskrect)
			texmaskrect += ((size_t)srcy) * sbuf->x + srcx;
	}
	else {
		srect = drect;
		srectf = drectf;
		srcskip = destskip;
	}

	if (mode == IMB_BLEND_COPY) {
		/* copy */
		for (; height > 0; height--) {
			if (do_char) {
				memcpy(drect, srect, width * sizeof(int));
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				memcpy(drectf, srectf, width * sizeof(float) * 4);
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else if (mode == IMB_BLEND_COPY_RGB) {
		/* copy rgb only */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				sr = srect;
				for (x = width; x > 0; x--, dr++, sr++) {
					((char *)dr)[0] = ((char *)sr)[0];
					((char *)dr)[1] = ((char *)sr)[1];
					((char *)dr)[2] = ((char *)sr)[2];
				}
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				srf = srectf;
				for (x = width; x > 0; x--, drf += 4, srf += 4) {
					float map_alpha = (srf[3] == 0.0f) ? drf[3] : drf[3] / srf[3];

					drf[0] = srf[0] * map_alpha;
					drf[1] = srf[1] * map_alpha;
					drf[2] = srf[2] * map_alpha;
				}
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else if (mode == IMB_BLEND_COPY_ALPHA) {
		/* copy alpha only */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				sr = srect;
				for (x = width; x > 0; x--, dr++, sr++)
					((char *)dr)[3] = ((char *)sr)[3];
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				srf = srectf;
				for (x = width; x > 0; x--, drf += 4, srf += 4)
					drf[3] = srf[3];
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else {
		switch (mode) {
			case IMB_BLEND_MIX:
			case IMB_BLEND_INTERPOLATE:
				func = blend_color_mix_byte;
				func_float = blend_color_mix_float;
				break;
			case IMB_BLEND_ADD:
				func = blend_color_add_byte;
				func_float = blend_color_add_float;
				break;
			case IMB_BLEND_SUB:
				func = blend_color_sub_byte;
				func_float = blend_color_sub_float;
				break;
			case IMB_BLEND_MUL:
				func = blend_color_mul_byte;
				func_float = blend_color_mul_float;
				break;
			case IMB_BLEND_LIGHTEN:
				func = blend_color_lighten_byte;
				func_float = blend_color_lighten_float;
				break;
			case IMB_BLEND_DARKEN:
				func = blend_color_darken_byte;
				func_float = blend_color_darken_float;
				break;
			case IMB_BLEND_ERASE_ALPHA:
				func = blend_color_erase_alpha_byte;
				func_float = blend_color_erase_alpha_float;
				break;
			case IMB_BLEND_ADD_ALPHA:
				func = blend_color_add_alpha_byte;
				func_float = blend_color_add_alpha_float;
				break;
			case IMB_BLEND_OVERLAY:
				func = blend_color_overlay_byte;
				func_float = blend_color_overlay_float;
				break;
			case IMB_BLEND_HARDLIGHT:
				func = blend_color_hardlight_byte;
				func_float = blend_color_hardlight_float;
				break;
			case IMB_BLEND_COLORBURN:
				func = blend_color_burn_byte;
				func_float = blend_color_burn_float;
				break;
			case IMB_BLEND_LINEARBURN:
				func = blend_color_linearburn_byte;
				func_float = blend_color_linearburn_float;
				break;
			case IMB_BLEND_COLORDODGE:
				func = blend_color_dodge_byte;
				func_float = blend_color_dodge_float;
				break;
			case IMB_BLEND_SCREEN:
				func = blend_color_screen_byte;
				func_float = blend_color_screen_float;
				break;
			case IMB_BLEND_SOFTLIGHT:
				func = blend_color_softlight_byte;
				func_float = blend_color_softlight_float;
				break;
			case IMB_BLEND_PINLIGHT:
				func = blend_color_pinlight_byte;
				func_float = blend_color_pinlight_float;
				break;
			case IMB_BLEND_LINEARLIGHT:
				func = blend_color_linearlight_byte;
				func_float = blend_color_linearlight_float;
				break;
			case IMB_BLEND_VIVIDLIGHT:
				func = blend_color_vividlight_byte;
				func_float = blend_color_vividlight_float;
				break;
			case IMB_BLEND_DIFFERENCE:
				func = blend_color_difference_byte;
				func_float = blend_color_difference_float;
				break;
			case IMB_BLEND_EXCLUSION:
				func = blend_color_exclusion_byte;
				func_float = blend_color_exclusion_float;
				break;
			case IMB_BLEND_COLOR:
				func = blend_color_color_byte;
				func_float = blend_color_color_float;
				break;
			case IMB_BLEND_HUE:
				func = blend_color_hue_byte;
				func_float = blend_color_hue_float;
				break;
			case IMB_BLEND_SATURATION:
				func = blend_color_saturation_byte;
				func_float = blend_color_saturation_float;
				break;
			case IMB_BLEND_LUMINOSITY:
				func = blend_color_luminosity_byte;
				func_float = blend_color_luminosity_float;
				break;
			default:
				break;
		}

		/* blend */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				or = orect;
				sr = srect;

				if (cmaskrect) {
					/* mask accumulation for painting */
					cmr = cmaskrect;
					tmr = texmaskrect;

					/* destination mask present, do max alpha masking */
					if (dmaskrect) {
						dmr = dmaskrect;
						for (x = width; x > 0; x--, dr++, or++, sr++, dmr++, cmr++) {
							unsigned char *src = (unsigned char *)sr;
							float mask_lim = mask_max * (*cmr);

							if (texmaskrect)
								mask_lim *= ((*tmr++) / 65535.0f);

							if (src[3] && mask_lim) {
								float mask;

								if (accumulate)
									mask = *dmr + mask_lim;
								else
									mask = *dmr + mask_lim - (*dmr  * (*cmr / 65535.0f));

								mask = min_ff(mask, 65535.0);

								if (mask > *dmr) {
									unsigned char mask_src[4];

									*dmr = mask;

									mask_src[0] = src[0];
									mask_src[1] = src[1];
									mask_src[2] = src[2];

									if (mode == IMB_BLEND_INTERPOLATE) {
										mask_src[3] = src[3];
										blend_color_interpolate_byte((unsigned char *)dr, (unsigned char *)or, mask_src, mask / 65535.0f);
									}
									else {
										mask_src[3] = divide_round_i(src[3] * mask, 65535);
										func((unsigned char *)dr, (unsigned char *)or, mask_src);
									}
								}
							}
						}
						dmaskrect += origskip;
					}
					/* no destination mask buffer, do regular blend with masktexture if present */
					else {
						for (x = width; x > 0; x--, dr++, or++, sr++, cmr++) {
							unsigned char *src = (unsigned char *)sr;
							float mask = (float)mask_max * ((float)(*cmr));

							if (texmaskrect)
								mask *= ((float)(*tmr++) / 65535.0f);

							mask = min_ff(mask, 65535.0);

							if (src[3] && (mask > 0.0f)) {
								unsigned char mask_src[4];

								mask_src[0] = src[0];
								mask_src[1] = src[1];
								mask_src[2] = src[2];

								if (mode == IMB_BLEND_INTERPOLATE) {
									mask_src[3] = src[3];
									blend_color_interpolate_byte((unsigned char *)dr, (unsigned char *)or, mask_src, mask / 65535.0f);
								}
								else {
									mask_src[3] = divide_round_i(src[3] * mask, 65535);
									func((unsigned char *)dr, (unsigned char *)or, mask_src);
								}
							}
						}
					}

					cmaskrect += srcskip;
					if (texmaskrect)
						texmaskrect += srcskip;
				}
				else {
					/* regular blending */
					for (x = width; x > 0; x--, dr++, or++, sr++) {
						if (((unsigned char *)sr)[3])
							func((unsigned char *)dr, (unsigned char *)or, (unsigned char *)sr);
					}
				}

				drect += destskip;
				orect += origskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				orf = orectf;
				srf = srectf;

				if (cmaskrect) {
					/* mask accumulation for painting */
					cmr = cmaskrect;
					tmr = texmaskrect;

					/* destination mask present, do max alpha masking */
					if (dmaskrect) {
						dmr = dmaskrect;
						for (x = width; x > 0; x--, drf += 4, orf += 4, srf += 4, dmr++, cmr++) {
							float mask_lim = mask_max * (*cmr);

							if (texmaskrect)
								mask_lim *= ((*tmr++) / 65535.0f);

							if (srf[3] && mask_lim) {
								float mask;

								if (accumulate)
									mask = min_ff(*dmr + mask_lim, 65535.0);
								else
									mask = *dmr + mask_lim - (*dmr  * (*cmr / 65535.0f));

								mask = min_ff(mask, 65535.0);

								if (mask > *dmr) {
									*dmr = mask;

									if (mode == IMB_BLEND_INTERPOLATE) {
										blend_color_interpolate_float(drf, orf, srf, mask / 65535.0f);
									}
									else {
										float mask_srf[4];
										mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
										func_float(drf, orf, mask_srf);
									}
								}
							}
						}
						dmaskrect += origskip;
					}
					/* no destination mask buffer, do regular blend with masktexture if present */
					else {
						for (x = width; x > 0; x--, drf += 4, orf += 4, srf += 4, cmr++) {
							float mask = (float)mask_max * ((float)(*cmr));

							if (texmaskrect)
								mask *= ((float)(*tmr++) / 65535.0f);

							mask = min_ff(mask, 65535.0);

							if (srf[3] && (mask > 0.0f)) {
								if (mode == IMB_BLEND_INTERPOLATE) {
									blend_color_interpolate_float(drf, orf, srf, mask / 65535.0f);
								}
								else {
									float mask_srf[4];
									mul_v4_v4fl(mask_srf, srf, mask / 65535.0f);
									func_float(drf, orf, mask_srf);
								}

							}
						}
					}

					cmaskrect += srcskip;
					if (texmaskrect)
						texmaskrect += srcskip;
				}
				else {
					/* regular blending */
					for (x = width; x > 0; x--, drf += 4, orf += 4, srf += 4) {
						if (srf[3] != 0)
							func_float(drf, orf, srf);
					}
				}

				drectf += destskip * 4;
				orectf += origskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
}
int
main ()
{
  int x = 17;
  int *xP, **xPP;
  char buf[200];
  char *s;
  int *ai;
  float *af;

  func_intptr(&x);

  func_intptr_ret(&x);

  func_string("zero\0xxxxxxxxxxxxxx");
  func_strlen(buf);

  extern int func_arg0(char *);
  func_arg0(buf);

  printf("%s\n", buf);

  func_strfixed(buf);
  printf("%s\n", buf);

  x = 80;
  xP = &x;
  xPP = &xP;
  func_ppp(&xPP);

  s = (char*) malloc(100);
  strcpy(s, "Dude");
  func_stringp(&s);

  func_enum(BLUE);

  func_short(-8, -9);
  func_ushort(33, 34);
  float f = func_float(3.4, -3.4);
  double d = func_double(3.4, -3.4);

  func_typedef(BLUE);

  ai = (int*) calloc(sizeof(int), 8);
  for (x = 0; x < 8; x++)
    ai[x] = 10 + x;
  func_arrayi(ai, 8);
  func_arrayi(ai, 2);

  af = (float*) calloc(sizeof(float), 8);
  for (x = 0; x < 8; x++)
    af[x] = 10.1 + x;
  func_arrayf(af, 8);
  func_arrayf(af, 2);

  {
    struct {
      int simple;
      int alen;
      int slen;
      struct { int a; int b; }* array;
      struct { int a; int b; } seq[3];
      char* str;
    } x;

    x.simple = 89;

    x.alen = 2;
    x.array = malloc(800);
    x.array[0].a = 1;
    x.array[0].b = 10;
    x.array[1].a = 3;
    x.array[1].b = 30;

    x.seq[0].a = 4;
    x.seq[0].b = 40;
    x.seq[1].a = 5;
    x.seq[1].b = 50;
    x.seq[2].a = 6;
    x.seq[2].b = 60;

    x.slen = 3;
    x.str = "123junk";

    func_struct(&x);
  }

  {
    char x[10] = {};
    char y[10] = {};
    func_call(x, y, call_func_work);
  }

  struct S2 {
    float f;
    char a;
    char b;
  };
  struct S3 {
    char a[6];
    float f;
  };
  struct S2 func_struct_2(int, struct S3 s3, double d);
  func_struct_2(17, (struct S3){ "ABCDE", 0.25 }, 0.5);
Exemple #4
0
void IMB_rectblend(ImBuf *dbuf, ImBuf *obuf, ImBuf *sbuf, unsigned short *dmask,
                   unsigned short *smask, unsigned short mask_max,
                   int destx,  int desty, int origx, int origy, int srcx, int srcy, int width, int height,
                   IMB_BlendMode mode, short lock_alpha)
{
	unsigned int *drect = NULL, *orect, *srect = NULL, *dr, *or, *sr;
	float *drectf = NULL, *orectf, *srectf = NULL, *drf, *orf, *srf;
	unsigned short *smaskrect = smask, *smr;
	unsigned short *dmaskrect = dmask, *dmr;
	int do_float, do_char, srcskip, destskip, origskip, x;
	IMB_blend_func func = NULL;
	IMB_blend_func_float func_float = NULL;

	if (dbuf == NULL || obuf == NULL) return;

	imb_rectclip3(dbuf, obuf, sbuf, &destx, &desty, &origx, &origy, &srcx, &srcy, &width, &height);

	if (width == 0 || height == 0) return;
	if (sbuf && sbuf->channels != 4) return;
	if (dbuf->channels != 4) return;

	do_char = (sbuf && sbuf->rect && dbuf->rect && obuf->rect);
	do_float = (sbuf && sbuf->rect_float && dbuf->rect_float && obuf->rect_float);

	if (do_char) {
		drect = dbuf->rect + desty * dbuf->x + destx;
		orect = obuf->rect + origy * obuf->x + origx;
	}
	if (do_float) {
		drectf = dbuf->rect_float + (desty * dbuf->x + destx) * 4;
		orectf = obuf->rect_float + (origy * obuf->x + origx) * 4;
	}

	if (dmaskrect)
		dmaskrect += origy * obuf->x + origx;

	destskip = dbuf->x;
	origskip = obuf->x;

	if (sbuf) {
		if (do_char) srect = sbuf->rect + srcy * sbuf->x + srcx;
		if (do_float) srectf = sbuf->rect_float + (srcy * sbuf->x + srcx) * 4;
		srcskip = sbuf->x;

		if (smaskrect)
			smaskrect += srcy * sbuf->x + srcx;
	}
	else {
		srect = drect;
		srectf = drectf;
		srcskip = destskip;
	}

	if (mode == IMB_BLEND_COPY) {
		/* copy */
		for (; height > 0; height--) {
			if (do_char) {
				memcpy(drect, srect, width * sizeof(int));
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				memcpy(drectf, srectf, width * sizeof(float) * 4);
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else if (mode == IMB_BLEND_COPY_RGB) {
		/* copy rgb only */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				sr = srect;
				for (x = width; x > 0; x--, dr++, sr++) {
					((char *)dr)[0] = ((char *)sr)[0];
					((char *)dr)[1] = ((char *)sr)[1];
					((char *)dr)[2] = ((char *)sr)[2];
				}
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				srf = srectf;
				for (x = width; x > 0; x--, drf += 4, srf += 4) {
					float map_alpha = (srf[3] == 0.0f)? drf[3] : drf[3] / srf[3];

					drf[0] = srf[0] * map_alpha;
					drf[1] = srf[1] * map_alpha;
					drf[2] = srf[2] * map_alpha;
				}
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else if (mode == IMB_BLEND_COPY_ALPHA) {
		/* copy alpha only */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				sr = srect;
				for (x = width; x > 0; x--, dr++, sr++)
					((char *)dr)[3] = ((char *)sr)[3];
				drect += destskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				srf = srectf;
				for (x = width; x > 0; x--, drf += 4, srf += 4)
					drf[3] = srf[3];
				drectf += destskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
	else {
		switch (mode) {
			case IMB_BLEND_MIX:
				func = blend_color_mix_byte;
				func_float = blend_color_mix_float;
				break;
			case IMB_BLEND_ADD:
				func = blend_color_add_byte;
				func_float = blend_color_add_float;
				break;
			case IMB_BLEND_SUB:
				func = blend_color_sub_byte;
				func_float = blend_color_sub_float;
				break;
			case IMB_BLEND_MUL:
				func = blend_color_mul_byte;
				func_float = blend_color_mul_float;
				break;
			case IMB_BLEND_LIGHTEN:
				func = blend_color_lighten_byte;
				func_float = blend_color_lighten_float;
				break;
			case IMB_BLEND_DARKEN:
				func = blend_color_darken_byte;
				func_float = blend_color_darken_float;
				break;
			case IMB_BLEND_ERASE_ALPHA:
				func = blend_color_erase_alpha_byte;
				func_float = blend_color_erase_alpha_float;
				break;
			case IMB_BLEND_ADD_ALPHA:
				func = blend_color_add_alpha_byte;
				func_float = blend_color_add_alpha_float;
				break;
			default:
				break;
		}

		/* blend */
		for (; height > 0; height--) {
			if (do_char) {
				dr = drect;
				or = orect;
				sr = srect;

				if (dmaskrect && smaskrect) {
					/* mask accumulation for painting */
					dmr = dmaskrect;
					smr = smaskrect;

					for (x = width; x > 0; x--, dr++, or++, sr++, dmr++, smr++) {
						unsigned char *src = (unsigned char *)sr;
						
						if (!((lock_alpha & IMA_LAYER_LOCK_ALPHA) && (pixel_is_transparent((unsigned char *)or)))) {
							if (src[3] && *smr) {
								unsigned short mask = *dmr + (((mask_max - *dmr) * (*smr)) / 65535);
							
								if (mask > *dmr) {
									unsigned char mask_src[4];

									*dmr = mask;

									mask_src[0] = src[0];
									mask_src[1] = src[1];
									mask_src[2] = src[2];
									mask_src[3] = divide_round_i(src[3] * mask, 65535);

									func((unsigned char *)dr, (unsigned char *)or, mask_src);
								}
							}
						}
					}
					dmaskrect += origskip;
					smaskrect += srcskip;
				}
				else {
					/* regular blending */
					for (x = width; x > 0; x--, dr++, or++, sr++) {
						if (((unsigned char *)sr)[3])
							func((unsigned char *)dr, (unsigned char *)or, (unsigned char *)sr);
					}
				}

				drect += destskip;
				orect += origskip;
				srect += srcskip;
			}

			if (do_float) {
				drf = drectf;
				orf = orectf;
				srf = srectf;

				if (dmaskrect && smaskrect) {
					/* mask accumulation for painting */
					dmr = dmaskrect;
					smr = smaskrect;

					for (x = width; x > 0; x--, drf += 4, orf += 4, srf += 4, dmr++, smr++) {
						if (srf[3] != 0 && *smr) {
							unsigned short mask = *dmr + (((mask_max - *dmr) * (*smr)) / 65535);

							if (mask > *dmr) {
								float mask_srf[4];

								*dmr = mask;
								mul_v4_v4fl(mask_srf, srf, mask * (1.0f / 65535.0f));

								func_float(drf, orf, mask_srf);
							}
						}
					}

					dmaskrect += origskip;
					smaskrect += srcskip;
				}
				else {
					/* regular blending */
					for (x = width; x > 0; x--, drf += 4, orf += 4, srf += 4) {
						if (srf[3] != 0)
							func_float(drf, orf, srf);
					}
				}

				drectf += destskip * 4;
				orectf += origskip * 4;
				srectf += srcskip * 4;
			}
		}
	}
}