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Merge branch 'working'

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Sean Barrett 2017-03-03 10:07:49 -08:00
commit 03611a369e
1 changed files with 18 additions and 6 deletions
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stb_rect_pack.h
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@ -1,4 +1,4 @@
// stb_rect_pack.h - v0.10 - public domain - rectangle packing // stb_rect_pack.h - v0.11 - public domain - rectangle packing
// Sean Barrett 2014 // Sean Barrett 2014
// //
// Useful for e.g. packing rectangular textures into an atlas. // Useful for e.g. packing rectangular textures into an atlas.
@ -27,11 +27,14 @@
// Sean Barrett // Sean Barrett
// Minor features // Minor features
// Martins Mozeiko // Martins Mozeiko
// github:IntellectualKitty
//
// Bugfixes / warning fixes // Bugfixes / warning fixes
// Jeremy Jaussaud // Jeremy Jaussaud
// //
// Version history: // Version history:
// //
// 0.11 (2017-03-03) return packing success/fail result
// 0.10 (2016-10-25) remove cast-away-const to avoid warnings // 0.10 (2016-10-25) remove cast-away-const to avoid warnings
// 0.09 (2016-08-27) fix compiler warnings // 0.09 (2016-08-27) fix compiler warnings
// 0.08 (2015-09-13) really fix bug with empty rects (w=0 or h=0) // 0.08 (2015-09-13) really fix bug with empty rects (w=0 or h=0)
@ -75,7 +78,7 @@ 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.
@ -96,6 +99,9 @@ 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
{ {
@ -542,9 +548,9 @@ 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) {
@ -574,9 +580,15 @@ 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); rects[i].was_packed = !(rects[i].x == STBRP__MAXVAL && rects[i].y == STBRP__MAXVAL);
if (!rects[i].was_packed)
all_rects_packed = 0;
}
// return the all_rects_packed status
return all_rects_packed;
} }
#endif #endif