diff options
Diffstat (limited to 'source/blender/gpu/intern/gpu_index_buffer.cc')
| -rw-r--r-- | source/blender/gpu/intern/gpu_index_buffer.cc | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/source/blender/gpu/intern/gpu_index_buffer.cc b/source/blender/gpu/intern/gpu_index_buffer.cc index 9f283a3a944..3cdcaac5544 100644 --- a/source/blender/gpu/intern/gpu_index_buffer.cc +++ b/source/blender/gpu/intern/gpu_index_buffer.cc @@ -25,6 +25,7 @@ #include "MEM_guardedalloc.h" +#include "BLI_math_base.h" #include "BLI_utildefines.h" #include "gpu_backend.hh" @@ -56,6 +57,7 @@ void GPU_indexbuf_init_ex(GPUIndexBufBuilder *builder, builder->index_max = 0; builder->prim_type = prim_type; builder->data = (uint *)MEM_callocN(builder->max_index_len * sizeof(uint), "GPUIndexBuf data"); + builder->parent = nullptr; } void GPU_indexbuf_init(GPUIndexBufBuilder *builder, @@ -78,6 +80,23 @@ GPUIndexBuf *GPU_indexbuf_build_on_device(uint index_len) return elem_; } +void GPU_indexbuf_subbuilder_init(const GPUIndexBufBuilder *parent_builder, + GPUIndexBufBuilder *sub_builder) +{ + BLI_assert(parent_builder->parent == nullptr); + memcpy(sub_builder, parent_builder, sizeof(GPUIndexBufBuilder)); + sub_builder->parent = parent_builder; +} + +void GPU_indexbuf_subbuilder_finish(GPUIndexBufBuilder *parent_builder, + const GPUIndexBufBuilder *sub_builder) +{ + BLI_assert(parent_builder == sub_builder->parent); + parent_builder->index_len = max_uu(parent_builder->index_len, sub_builder->index_len); + parent_builder->index_min = min_uu(parent_builder->index_min, sub_builder->index_min); + parent_builder->index_max = max_uu(parent_builder->index_max, sub_builder->index_max); +} + void GPU_indexbuf_add_generic_vert(GPUIndexBufBuilder *builder, uint v) { #if TRUST_NO_ONE |