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Return all_rects_packed status from stbrp_pack_rects.

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IntellectualKitty 2016-11-30 13:24:38 -07:00 committed by GitHub
parent 996ccf2159
commit 07fefa384a
1 changed files with 14 additions and 5 deletions
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19
stb_rect_pack.h
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@ -77,7 +77,7 @@ typedef int stbrp_coord;
typedef unsigned short stbrp_coord; typedef unsigned short stbrp_coord;
#endif #endif
STBRP_DEF void stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects); STBRP_DEF int stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int num_rects);
// Assign packed locations to rectangles. The rectangles are of type // Assign packed locations to rectangles. The rectangles are of type
// 'stbrp_rect' defined below, stored in the array 'rects', and there // 'stbrp_rect' defined below, stored in the array 'rects', and there
// are 'num_rects' many of them. // are 'num_rects' many of them.
@ -98,6 +98,9 @@ STBRP_DEF void stbrp_pack_rects (stbrp_context *context, stbrp_rect *rects, int
// arrays will probably produce worse packing results than calling it // arrays will probably produce worse packing results than calling it
// a single time with the full rectangle array, but the option is // a single time with the full rectangle array, but the option is
// available. // available.
//
// The function returns 1 if all of the rectangles were successfully
// packed and 0 otherwise.
struct stbrp_rect struct stbrp_rect
{ {
@ -544,9 +547,9 @@ static int rect_original_order(const void *a, const void *b)
#define STBRP__MAXVAL 0xffff #define STBRP__MAXVAL 0xffff
#endif #endif
STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects) STBRP_DEF int stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int num_rects)
{ {
int i; int i, all_rects_packed = 1;
// we use the 'was_packed' field internally to allow sorting/unsorting // we use the 'was_packed' field internally to allow sorting/unsorting
for (i=0; i < num_rects; ++i) { for (i=0; i < num_rects; ++i) {
@ -576,8 +579,14 @@ STBRP_DEF void stbrp_pack_rects(stbrp_context *context, stbrp_rect *rects, int n
// unsort // unsort
STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order); STBRP_SORT(rects, num_rects, sizeof(rects[0]), rect_original_order);
// set was_packed flags // set was_packed flags and all_rects_packed status
for (i=0; i < num_rects; ++i) for (i=0; i < num_rects; ++i)
rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL); {
if (!(rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL)))
all_rects_packed = 0;
}
// return the all_rects_packed status
return all_rects_packed;
} }
#endif #endif