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sw_engine: ++portability on macOS
fixed a runtime error report of the sanitizer at data casting. issue: https://github.com/thorvg/thorvg/issues/3102
This commit is contained in:
Hermet Park
Mira Grudzinska
parent
3831a90a7d
commit
949c918af9
1 changed files with 5 additions and 194 deletions
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@ -75,197 +75,8 @@ static bool _arrange(const SwImage* image, const SwBBox* region, int& yStart, in
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static bool _rasterMaskedPolygonImageSegment(SwSurface* surface, const SwImage* image, const SwBBox* region, int yStart, int yEnd, AASpans* aaSpans, uint8_t opacity, uint8_t dirFlag = 0)
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{
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TVGERR("SW_ENGINE", "TODO: _rasterMaskedPolygonImageSegment()");
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return false;
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#if 0 //Enable it when GRAYSCALE image is supported
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auto maskOp = _getMaskOp(surface->compositor->method);
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auto direct = _direct(surface->compositor->method);
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float _dudx = dudx, _dvdx = dvdx;
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float _dxdya = dxdya, _dxdyb = dxdyb, _dudya = dudya, _dvdya = dvdya;
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float _xa = xa, _xb = xb, _ua = ua, _va = va;
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auto sbuf = image->buf8;
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int32_t sw = static_cast<int32_t>(image->stride);
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int32_t sh = image->h;
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int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay;
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int32_t vv = 0, uu = 0;
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int32_t minx = INT32_MAX, maxx = 0;
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float dx, u, v, iptr;
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SwSpan* span = nullptr; //used only when rle based.
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if (!_arrange(image, region, yStart, yEnd)) return false;
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//Loop through all lines in the segment
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uint32_t spanIdx = 0;
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if (region) {
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minx = region->min.x;
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maxx = region->max.x;
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} else {
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span = image->rle->spans;
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while (span->y < yStart) {
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++span;
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++spanIdx;
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}
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}
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y = yStart;
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while (y < yEnd) {
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x1 = (int32_t)_xa;
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x2 = (int32_t)_xb;
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if (!region) {
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minx = INT32_MAX;
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maxx = 0;
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//one single row, could be consisted of multiple spans.
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while (span->y == y && spanIdx < image->rle->size) {
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if (minx > span->x) minx = span->x;
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if (maxx < span->x + span->len) maxx = span->x + span->len;
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++span;
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++spanIdx;
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}
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}
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if (x1 < minx) x1 = minx;
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if (x2 > maxx) x2 = maxx;
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//Anti-Aliasing frames
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ay = y - aaSpans->yStart;
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if (aaSpans->lines[ay].x[0] > x1) aaSpans->lines[ay].x[0] = x1;
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if (aaSpans->lines[ay].x[1] < x2) aaSpans->lines[ay].x[1] = x2;
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//Range allowed
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if ((x2 - x1) >= 1 && (x1 < maxx) && (x2 > minx)) {
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//Perform subtexel pre-stepping on UV
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dx = 1 - (_xa - x1);
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u = _ua + dx * _dudx;
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v = _va + dx * _dvdx;
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x = x1;
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auto cmp = &surface->compositor->image.buf8[y * surface->compositor->image.stride + x1];
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auto dst = &surface->buf8[y * surface->stride + x1];
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if (opacity == 255) {
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//Draw horizontal line
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while (x++ < x2) {
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uu = (int) u;
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if (uu >= sw) continue;
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vv = (int) v;
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if (vv >= sh) continue;
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ar = (int)(255 * (1 - modff(u, &iptr)));
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ab = (int)(255 * (1 - modff(v, &iptr)));
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iru = uu + 1;
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irv = vv + 1;
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px = *(sbuf + (vv * sw) + uu);
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/* horizontal interpolate */
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if (iru < sw) {
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/* right pixel */
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int px2 = *(sbuf + (vv * sw) + iru);
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px = INTERPOLATE(px, px2, ar);
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}
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/* vertical interpolate */
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if (irv < sh) {
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/* bottom pixel */
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int px2 = *(sbuf + (irv * sw) + uu);
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/* horizontal interpolate */
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if (iru < sw) {
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/* bottom right pixel */
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int px3 = *(sbuf + (irv * sw) + iru);
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px2 = INTERPOLATE(px2, px3, ar);
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}
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px = INTERPOLATE(px, px2, ab);
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}
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if (direct) {
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auto tmp = maskOp(px, *cmp, 0); //not use alpha
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*dst = tmp + MULTIPLY(*dst, ~tmp);
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++dst;
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} else {
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*cmp = maskOp(px, *cmp, ~px);
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}
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++cmp;
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//Step UV horizontally
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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}
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} else {
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//Draw horizontal line
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while (x++ < x2) {
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uu = (int) u;
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if (uu >= sw) continue;
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vv = (int) v;
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if (vv >= sh) continue;
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ar = (int)(255 * (1 - modff(u, &iptr)));
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ab = (int)(255 * (1 - modff(v, &iptr)));
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iru = uu + 1;
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irv = vv + 1;
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px = *(sbuf + (vv * sw) + uu);
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/* horizontal interpolate */
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if (iru < sw) {
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/* right pixel */
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int px2 = *(sbuf + (vv * sw) + iru);
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px = INTERPOLATE(px, px2, ar);
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}
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/* vertical interpolate */
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if (irv < sh) {
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/* bottom pixel */
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int px2 = *(sbuf + (irv * sw) + uu);
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/* horizontal interpolate */
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if (iru < sw) {
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/* bottom right pixel */
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int px3 = *(sbuf + (irv * sw) + iru);
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px2 = INTERPOLATE(px2, px3, ar);
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}
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px = INTERPOLATE(px, px2, ab);
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}
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if (direct) {
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auto tmp = maskOp(MULTIPLY(px, opacity), *cmp, 0);
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*dst = tmp + MULTIPLY(*dst, ~tmp);
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++dst;
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} else {
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auto tmp = MULTIPLY(px, opacity);
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*cmp = maskOp(tmp, *cmp, ~px);
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}
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++cmp;
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//Step UV horizontally
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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}
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}
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}
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//Step along both edges
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_xa += _dxdya;
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_xb += _dxdyb;
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_ua += _dudya;
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_va += _dvdya;
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if (!region && spanIdx >= image->rle->size) break;
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++y;
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}
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xa = _xa;
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xb = _xb;
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ua = _ua;
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va = _va;
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return true;
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#endif
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}
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@ -380,7 +191,7 @@ static void _rasterBlendingPolygonImageSegment(SwSurface* surface, const SwImage
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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if ((uint32_t)(int32_t)v >= image->h) break;
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}
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} else {
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//Draw horizontal line
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@ -424,7 +235,7 @@ static void _rasterBlendingPolygonImageSegment(SwSurface* surface, const SwImage
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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if ((uint32_t)(int32_t)v >= image->h) break;
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}
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}
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}
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@ -571,7 +382,7 @@ static void _rasterPolygonImageSegment(SwSurface* surface, const SwImage* image,
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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if ((uint32_t)(int32_t)v >= image->h) break;
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}
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} else {
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//Draw horizontal line
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@ -621,7 +432,7 @@ static void _rasterPolygonImageSegment(SwSurface* surface, const SwImage* image,
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u += _dudx;
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v += _dvdx;
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//range over?
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if ((uint32_t)v >= image->h) break;
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if ((uint32_t)(int32_t)v >= image->h) break;
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}
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}
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}
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