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author | Campbell Barton <ideasman42@gmail.com> | 2017-10-09 12:49:27 +0300 |
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committer | Campbell Barton <ideasman42@gmail.com> | 2017-10-09 12:49:27 +0300 |
commit | a5b4b0f21c1ae8c96e4fea9abdcfac2fab1cf300 (patch) | |
tree | 0658d8bdfb8ec03652aa04f82ee8a4d243ec6370 /source/blender/gpu/intern/gpu_select.c | |
parent | d68f698cf0321477c0734474150eb4bc43c4e85f (diff) | |
parent | abcda06934aba054de8540b66b13c2bbc5f8f515 (diff) |
Merge branch '28' into custom-manipulatorscustom-manipulators
Diffstat (limited to 'source/blender/gpu/intern/gpu_select.c')
-rw-r--r-- | source/blender/gpu/intern/gpu_select.c | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_select.c b/source/blender/gpu/intern/gpu_select.c index 162a605ef3d..153cf5f1e97 100644 --- a/source/blender/gpu/intern/gpu_select.c +++ b/source/blender/gpu/intern/gpu_select.c @@ -227,3 +227,29 @@ bool GPU_select_is_cached(void) { return g_select_state.use_cache && gpu_select_pick_is_cached(); } + + +/* ---------------------------------------------------------------------------- + * Utilities + */ + +/** + * Helper function, nothing special but avoids doing inline since hit's aren't sorted by depth + * and purpose of 4x buffer indices isn't so clear. + * + * Note that comparing depth as uint is fine. + */ +const uint *GPU_select_buffer_near(const uint *buffer, int hits) +{ + const uint *buffer_near = NULL; + uint depth_min = (uint)-1; + for (int i = 0; i < hits; i++) { + if (buffer[1] < depth_min) { + BLI_assert(buffer[3] != -1); + depth_min = buffer[1]; + buffer_near = buffer; + } + buffer += 4; + } + return buffer_near; +} |