122     integer_t fb;  in build_blending()  local
124         fb.setTo(scratches.obtain(), 32);   in build_blending()
125         extract(fb, pixel, component);  in build_blending()
129             if (fb.size() < temp.size()) {  in build_blending()
132                 expand(fb, fb, new_size);  in build_blending()
173                 component, pixel, fragment, fb, scratches);  in build_blending()
175         fb.flags |= CORRUPTIBLE;  in build_blending()
176         build_blendFOneMinusF(temp, factor, fragment, fb);  in build_blending()
181         fb.flags |= CORRUPTIBLE;  in build_blending()
183                 component, pixel, fragment, fb, scratches);  in build_blending()
184         build_blendOneMinusFF(temp, factor, fragment, fb);  in build_blending()
192             fb.flags |= CORRUPTIBLE;  in build_blending()
212                         component, pixel, fragment, fb, scratches);  in build_blending()
213                 mul_factor(temp, fb, dst_factor);  in build_blending()
219                 component_add(temp, fb, fragment); // args order matters  in build_blending()
224                         component, pixel, fragment, fb, scratches);  in build_blending()
225                 mul_factor_add(temp, fb, dst_factor, component_t(fragment));  in build_blending()
231                     component, pixel, fragment, fb, scratches);  in build_blending()
235                 mul_factor_add(temp, fragment, src_factor, component_t(fb));  in build_blending()
243                         component, pixel, fragment, fb, scratches);  in build_blending()
244                 mul_factor_add(temp, fb, dst_factor, temp);  in build_blending()
260         integer_t& fb,  in build_blend_factor()  argument
318         } else if (fb.flags & CORRUPTIBLE) {  in build_blend_factor()
319             factor.setTo(fb.reg, 32, CORRUPTIBLE);  in build_blend_factor()
320             fb.flags &= ~CORRUPTIBLE;  in build_blend_factor()
332         factor.s = fb.s;  in build_blend_factor()
333         ADD(AL, 0, factor.reg, fb.reg, reg_imm(fb.reg, LSR, fb.s-1));  in build_blend_factor()
441         const integer_t& fb)  in build_blendFOneMinusF()  argument
447             fragment.reg : scratches.obtain(), fb.size(), CORRUPTIBLE);  in build_blendFOneMinusF()
448     const int shift = fragment.size() - fb.size();  in build_blendFOneMinusF()
449     if (shift>0)        RSB(AL, 0, diff.reg, fb.reg, reg_imm(fragment.reg, LSR, shift));  in build_blendFOneMinusF()
450     else if (shift<0)   RSB(AL, 0, diff.reg, fb.reg, reg_imm(fragment.reg, LSL,-shift));  in build_blendFOneMinusF()
451     else                RSB(AL, 0, diff.reg, fb.reg, fragment.reg);  in build_blendFOneMinusF()
452     mul_factor_add(temp, diff, factor, component_t(fb));  in build_blendFOneMinusF()
459         const integer_t& fb)  in build_blendOneMinusFF()  argument
464     integer_t diff(fb.flags & CORRUPTIBLE ?  in build_blendOneMinusFF()
465             fb.reg : scratches.obtain(), fb.size(), CORRUPTIBLE);  in build_blendOneMinusFF()
466     const int shift = fragment.size() - fb.size();  in build_blendOneMinusFF()
467     if (shift>0)        SUB(AL, 0, diff.reg, fb.reg, reg_imm(fragment.reg, LSR, shift));  in build_blendOneMinusFF()
468     else if (shift<0)   SUB(AL, 0, diff.reg, fb.reg, reg_imm(fragment.reg, LSL,-shift));  in build_blendOneMinusFF()
469     else                SUB(AL, 0, diff.reg, fb.reg, fragment.reg);  in build_blendOneMinusFF()