diff options
Diffstat (limited to 'engines/sword25/gfx/image/art.cpp')
-rw-r--r-- | engines/sword25/gfx/image/art.cpp | 71 |
1 files changed, 59 insertions, 12 deletions
diff --git a/engines/sword25/gfx/image/art.cpp b/engines/sword25/gfx/image/art.cpp index cd7cfb6b69..e9715481c6 100644 --- a/engines/sword25/gfx/image/art.cpp +++ b/engines/sword25/gfx/image/art.cpp @@ -151,6 +151,8 @@ ArtSVP *art_svp_from_vpath(ArtVpath *vpath) { n_segs_max = 16; svp = (ArtSVP *)malloc(sizeof(ArtSVP) + (n_segs_max - 1) * sizeof(ArtSVPSeg)); + if (!svp) + error("[art_svp_from_vpath] Cannot allocate memory"); dir = 0; n_points = 0; @@ -167,9 +169,14 @@ ArtSVP *art_svp_from_vpath(ArtVpath *vpath) { if (points != NULL && n_points >= 2) { if (n_segs == n_segs_max) { n_segs_max <<= 1; - svp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + - (n_segs_max - 1) * - sizeof(ArtSVPSeg)); + ArtSVP *tmp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + + (n_segs_max - 1) * + sizeof(ArtSVPSeg)); + + if (!tmp) + error("Cannot reallocate memory in art_svp_from_vpath()"); + + svp = tmp; } svp->segs[n_segs].n_points = n_points; svp->segs[n_segs].dir = (dir > 0); @@ -204,9 +211,14 @@ ArtSVP *art_svp_from_vpath(ArtVpath *vpath) { y = points[n_points - 1].y; if (n_segs == n_segs_max) { n_segs_max <<= 1; - svp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + - (n_segs_max - 1) * - sizeof(ArtSVPSeg)); + ArtSVP *tmp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + + (n_segs_max - 1) * + sizeof(ArtSVPSeg)); + + if (!tmp) + error("Cannot reallocate memory in art_svp_from_vpath()"); + + svp = tmp; } svp->segs[n_segs].n_points = n_points; svp->segs[n_segs].dir = (dir > 0); @@ -246,9 +258,14 @@ ArtSVP *art_svp_from_vpath(ArtVpath *vpath) { if (n_points >= 2) { if (n_segs == n_segs_max) { n_segs_max <<= 1; - svp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + - (n_segs_max - 1) * - sizeof(ArtSVPSeg)); + ArtSVP *tmp = (ArtSVP *)realloc(svp, sizeof(ArtSVP) + + (n_segs_max - 1) * + sizeof(ArtSVPSeg)); + + if (!tmp) + error("Cannot reallocate memory in art_svp_from_vpath()"); + + svp = tmp; } svp->segs[n_segs].n_points = n_points; svp->segs[n_segs].dir = (dir > 0); @@ -1026,6 +1043,8 @@ struct _ArtPriPoint { static ArtPriQ *art_pri_new(void) { ArtPriQ *result = art_new(ArtPriQ, 1); + if (!result) + error("[art_pri_new] Cannot allocate memory"); result->n_items = 0; result->n_items_max = 16; @@ -1157,8 +1176,13 @@ static int art_svp_writer_rewind_add_segment(ArtSvpWriter *self, int wind_left, (swr->n_segs_max - 1) * sizeof(ArtSVPSeg)); swr->svp = svp; - swr->n_points_max = art_renew(swr->n_points_max, int, - swr->n_segs_max); + int *tmp = art_renew(swr->n_points_max, int, + swr->n_segs_max); + + if (!tmp) + error("Cannot reallocate memory in art_svp_writer_rewind_add_segment()"); + + swr->n_points_max = tmp; } seg = &svp->segs[seg_num]; seg->n_points = 1; @@ -1169,6 +1193,9 @@ static int art_svp_writer_rewind_add_segment(ArtSvpWriter *self, int wind_left, seg->bbox.x1 = x; seg->bbox.y1 = y; seg->points = art_new(ArtPoint, init_n_points_max); + if (!seg->points) + error("[art_svp_writer_rewind_add_segment] Cannot allocate memory"); + seg->points[0].x = x; seg->points[0].y = y; return seg_num; @@ -1213,6 +1240,8 @@ ArtSVP *art_svp_writer_rewind_reap(ArtSvpWriter *self) { ArtSvpWriter *art_svp_writer_rewind_new(ArtWindRule rule) { ArtSvpWriterRewind *result = art_new(ArtSvpWriterRewind, 1); + if (!result) + error("[art_svp_writer_rewind_new] Cannot allocate memory"); result->super.add_segment = art_svp_writer_rewind_add_segment; result->super.add_point = art_svp_writer_rewind_add_point; @@ -1222,6 +1251,9 @@ ArtSvpWriter *art_svp_writer_rewind_new(ArtWindRule rule) { result->n_segs_max = 16; result->svp = (ArtSVP *)malloc(sizeof(ArtSVP) + (result->n_segs_max - 1) * sizeof(ArtSVPSeg)); + if (!result->svp) + error("[art_svp_writer_rewind_new] Cannot allocate memory"); + result->svp->n_segs = 0; result->n_points_max = art_new(int, result->n_segs_max); @@ -1392,6 +1424,9 @@ static void art_svp_intersect_push_pt(ArtIntersectCtx *ctx, ArtActiveSeg *seg, seg->y1 = y; pri_pt = art_new(ArtPriPoint, 1); + if (!pri_pt) + error("[art_svp_intersect_push_pt] Cannot allocate memory"); + pri_pt->x = x; pri_pt->y = y; pri_pt->user_data = seg; @@ -1855,6 +1890,8 @@ static void art_svp_intersect_horiz(ArtIntersectCtx *ctx, ArtActiveSeg *seg, return; hs = art_new(ArtActiveSeg, 1); + if (!hs) + error("[art_svp_intersect_horiz] Cannot allocate memory"); hs->flags = ART_ACTIVE_FLAGS_DEL | (seg->flags & ART_ACTIVE_FLAGS_OUT); if (seg->flags & ART_ACTIVE_FLAGS_OUT) { @@ -1997,6 +2034,8 @@ static void art_svp_intersect_add_seg(ArtIntersectCtx *ctx, const ArtSVPSeg *in_ ArtActiveSeg *last = NULL; ArtActiveSeg *left, *right; ArtPriPoint *pri_pt = art_new(ArtPriPoint, 1); + if (!pri_pt) + error("[art_svp_intersect_add_seg] Cannot allocate memory"); seg->flags = 0; seg->in_seg = in_seg; @@ -2166,6 +2205,9 @@ void art_svp_intersector(const ArtSVP *in, ArtSvpWriter *out) { return; ctx = art_new(ArtIntersectCtx, 1); + if (!ctx) + error("[art_svp_intersector] Cannot allocate memory"); + ctx->in = in; ctx->out = out; pq = art_pri_new(); @@ -2178,6 +2220,9 @@ void art_svp_intersector(const ArtSVP *in, ArtSvpWriter *out) { ctx->in_curs = 0; first_point = art_new(ArtPriPoint, 1); + if (!first_point) + error("[art_svp_intersector] Cannot allocate memory"); + first_point->x = in->segs[0].points[0].x; first_point->y = in->segs[0].points[0].y; first_point->user_data = NULL; @@ -2319,6 +2364,8 @@ static void art_svp_render_delete_active(int *active_segs, int j, int n_active_s ArtSVPRenderAAIter *art_svp_render_aa_iter(const ArtSVP *svp, int x0, int y0, int x1, int y1) { ArtSVPRenderAAIter *iter = art_new(ArtSVPRenderAAIter, 1); + if (!iter) + error("[art_svp_render_aa_iter] Cannot allocate memory"); iter->svp = svp; iter->y = y0; @@ -2499,7 +2546,7 @@ void art_svp_render_aa_iter_step(ArtSVPRenderAAIter *iter, int *p_start, ADD_STEP(x, xdelta) } if (x < x1) { - this_ = + this_ = (int)(delta * (1 - 0.5 * (x_max - ix_max) * (x_max - ix_max) * rslope)); |