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sw_engine: fix a crash issue.

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set the anti-aliasing frame info properly, in an exceptional case.

issue: https://github.com/thorvg/thorvg/issues/2391
This commit is contained in:
Hermet Park 2024-06-13 19:43:04 +09:00
parent 63d6a2dadf
commit 263ce25153
1 changed files with 9 additions and 7 deletions
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16
src/renderer/sw_engine/tvgSwRasterTexmap.h
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@ -77,7 +77,7 @@ static bool _rasterMaskedPolygonImageSegment(SwSurface* surface, const SwImage*
int32_t sh = image->h; int32_t sh = image->h;
int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay; int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay;
int32_t vv = 0, uu = 0; int32_t vv = 0, uu = 0;
int32_t minx = INT32_MAX, maxx = INT32_MIN; int32_t minx = INT32_MAX, maxx = 0;
float dx, u, v, iptr; float dx, u, v, iptr;
SwSpan* span = nullptr; //used only when rle based. SwSpan* span = nullptr; //used only when rle based.
@ -105,7 +105,7 @@ static bool _rasterMaskedPolygonImageSegment(SwSurface* surface, const SwImage*
if (!region) { if (!region) {
minx = INT32_MAX; minx = INT32_MAX;
maxx = INT32_MIN; maxx = 0;
//one single row, could be consisted of multiple spans. //one single row, could be consisted of multiple spans.
while (span->y == y && spanIdx < image->rle->size) { while (span->y == y && spanIdx < image->rle->size) {
if (minx > span->x) minx = span->x; if (minx > span->x) minx = span->x;
@ -270,7 +270,7 @@ static void _rasterBlendingPolygonImageSegment(SwSurface* surface, const SwImage
int32_t dw = surface->stride; int32_t dw = surface->stride;
int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay; int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay;
int32_t vv = 0, uu = 0; int32_t vv = 0, uu = 0;
int32_t minx = INT32_MAX, maxx = INT32_MIN; int32_t minx = INT32_MAX, maxx = 0;
float dx, u, v, iptr; float dx, u, v, iptr;
uint32_t* buf; uint32_t* buf;
SwSpan* span = nullptr; //used only when rle based. SwSpan* span = nullptr; //used only when rle based.
@ -299,7 +299,7 @@ static void _rasterBlendingPolygonImageSegment(SwSurface* surface, const SwImage
if (!region) { if (!region) {
minx = INT32_MAX; minx = INT32_MAX;
maxx = INT32_MIN; maxx = 0;
//one single row, could be consisted of multiple spans. //one single row, could be consisted of multiple spans.
while (span->y == y && spanIdx < image->rle->size) { while (span->y == y && spanIdx < image->rle->size) {
if (minx > span->x) minx = span->x; if (minx > span->x) minx = span->x;
@ -447,7 +447,7 @@ static void _rasterPolygonImageSegment(SwSurface* surface, const SwImage* image,
int32_t dw = surface->stride; int32_t dw = surface->stride;
int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay; int32_t x1, x2, x, y, ar, ab, iru, irv, px, ay;
int32_t vv = 0, uu = 0; int32_t vv = 0, uu = 0;
int32_t minx = INT32_MAX, maxx = INT32_MIN; int32_t minx = INT32_MAX, maxx = 0;
float dx, u, v, iptr; float dx, u, v, iptr;
uint32_t* buf; uint32_t* buf;
SwSpan* span = nullptr; //used only when rle based. SwSpan* span = nullptr; //used only when rle based.
@ -481,7 +481,7 @@ static void _rasterPolygonImageSegment(SwSurface* surface, const SwImage* image,
if (!region) { if (!region) {
minx = INT32_MAX; minx = INT32_MAX;
maxx = INT32_MIN; maxx = 0;
//one single row, could be consisted of multiple spans. //one single row, could be consisted of multiple spans.
while (span->y == y && spanIdx < image->rle->size) { while (span->y == y && spanIdx < image->rle->size) {
if (minx > span->x) minx = span->x; if (minx > span->x) minx = span->x;
@ -828,7 +828,9 @@ static AASpans* _AASpans(float ymin, float ymax, const SwImage* image, const SwB
for (int32_t i = 0; i < height; i++) { for (int32_t i = 0; i < height; i++) {
aaSpans->lines[i].x[0] = INT32_MAX; aaSpans->lines[i].x[0] = INT32_MAX;
aaSpans->lines[i].x[1] = INT32_MIN; aaSpans->lines[i].x[1] = 0;
aaSpans->lines[i].length[0] = 0;
aaSpans->lines[i].length[1] = 0;
} }
return aaSpans; return aaSpans;
} }