diff options
Diffstat (limited to 'source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edit_data.cc')
| -rw-r--r-- | source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edit_data.cc | 265 |
1 files changed, 265 insertions, 0 deletions
diff --git a/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edit_data.cc b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edit_data.cc new file mode 100644 index 00000000000..ff250a30ec4 --- /dev/null +++ b/source/blender/draw/intern/mesh_extractors/extract_mesh_vbo_edit_data.cc @@ -0,0 +1,265 @@ +/* + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + * The Original Code is Copyright (C) 2021 by Blender Foundation. + * All rights reserved. + */ + +/** \file + * \ingroup draw + */ + +#include "draw_cache_extract_mesh_private.h" +#include "draw_cache_impl.h" + +namespace blender::draw { + +/* ---------------------------------------------------------------------- */ +/** \name Extract Edit Mode Data / Flags + * \{ */ + +static void mesh_render_data_edge_flag(const MeshRenderData *mr, + const BMEdge *eed, + EditLoopData *eattr) +{ + const ToolSettings *ts = mr->toolsettings; + const bool is_vertex_select_mode = (ts != nullptr) && (ts->selectmode & SCE_SELECT_VERTEX) != 0; + const bool is_face_only_select_mode = (ts != nullptr) && (ts->selectmode == SCE_SELECT_FACE); + + if (eed == mr->eed_act) { + eattr->e_flag |= VFLAG_EDGE_ACTIVE; + } + if (!is_vertex_select_mode && BM_elem_flag_test(eed, BM_ELEM_SELECT)) { + eattr->e_flag |= VFLAG_EDGE_SELECTED; + } + if (is_vertex_select_mode && BM_elem_flag_test(eed->v1, BM_ELEM_SELECT) && + BM_elem_flag_test(eed->v2, BM_ELEM_SELECT)) { + eattr->e_flag |= VFLAG_EDGE_SELECTED; + eattr->e_flag |= VFLAG_VERT_SELECTED; + } + if (BM_elem_flag_test(eed, BM_ELEM_SEAM)) { + eattr->e_flag |= VFLAG_EDGE_SEAM; + } + if (!BM_elem_flag_test(eed, BM_ELEM_SMOOTH)) { + eattr->e_flag |= VFLAG_EDGE_SHARP; + } + + /* Use active edge color for active face edges because + * specular highlights make it hard to see T55456#510873. + * + * This isn't ideal since it can't be used when mixing edge/face modes + * but it's still better than not being able to see the active face. */ + if (is_face_only_select_mode) { + if (mr->efa_act != nullptr) { + if (BM_edge_in_face(eed, mr->efa_act)) { + eattr->e_flag |= VFLAG_EDGE_ACTIVE; + } + } + } + + /* Use a byte for value range */ + if (mr->crease_ofs != -1) { + float crease = BM_ELEM_CD_GET_FLOAT(eed, mr->crease_ofs); + if (crease > 0) { + eattr->crease = (uchar)(crease * 255.0f); + } + } + /* Use a byte for value range */ + if (mr->bweight_ofs != -1) { + float bweight = BM_ELEM_CD_GET_FLOAT(eed, mr->bweight_ofs); + if (bweight > 0) { + eattr->bweight = (uchar)(bweight * 255.0f); + } + } +#ifdef WITH_FREESTYLE + if (mr->freestyle_edge_ofs != -1) { + const FreestyleEdge *fed = (const FreestyleEdge *)BM_ELEM_CD_GET_VOID_P( + eed, mr->freestyle_edge_ofs); + if (fed->flag & FREESTYLE_EDGE_MARK) { + eattr->e_flag |= VFLAG_EDGE_FREESTYLE; + } + } +#endif +} + +static void mesh_render_data_vert_flag(const MeshRenderData *mr, + const BMVert *eve, + EditLoopData *eattr) +{ + if (eve == mr->eve_act) { + eattr->e_flag |= VFLAG_VERT_ACTIVE; + } + if (BM_elem_flag_test(eve, BM_ELEM_SELECT)) { + eattr->e_flag |= VFLAG_VERT_SELECTED; + } +} + +static void extract_edit_data_init(const MeshRenderData *mr, + struct MeshBatchCache *UNUSED(cache), + void *buf, + void *tls_data) +{ + GPUVertBuf *vbo = static_cast<GPUVertBuf *>(buf); + static GPUVertFormat format = {0}; + if (format.attr_len == 0) { + /* WARNING: Adjust #EditLoopData struct accordingly. */ + GPU_vertformat_attr_add(&format, "data", GPU_COMP_U8, 4, GPU_FETCH_INT); + GPU_vertformat_alias_add(&format, "flag"); + } + GPU_vertbuf_init_with_format(vbo, &format); + GPU_vertbuf_data_alloc(vbo, mr->loop_len + mr->loop_loose_len); + EditLoopData *vbo_data = (EditLoopData *)GPU_vertbuf_get_data(vbo); + *(EditLoopData **)tls_data = vbo_data; +} + +static void extract_edit_data_iter_poly_bm(const MeshRenderData *mr, + const BMFace *f, + const int UNUSED(f_index), + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + + BMLoop *l_iter, *l_first; + l_iter = l_first = BM_FACE_FIRST_LOOP(f); + do { + const int l_index = BM_elem_index_get(l_iter); + + EditLoopData *data = vbo_data + l_index; + memset(data, 0x0, sizeof(*data)); + mesh_render_data_face_flag(mr, f, -1, data); + mesh_render_data_edge_flag(mr, l_iter->e, data); + mesh_render_data_vert_flag(mr, l_iter->v, data); + } while ((l_iter = l_iter->next) != l_first); +} + +static void extract_edit_data_iter_poly_mesh(const MeshRenderData *mr, + const MPoly *mp, + const int mp_index, + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + + const MLoop *mloop = mr->mloop; + const int ml_index_end = mp->loopstart + mp->totloop; + for (int ml_index = mp->loopstart; ml_index < ml_index_end; ml_index += 1) { + const MLoop *ml = &mloop[ml_index]; + EditLoopData *data = vbo_data + ml_index; + memset(data, 0x0, sizeof(*data)); + BMFace *efa = bm_original_face_get(mr, mp_index); + BMEdge *eed = bm_original_edge_get(mr, ml->e); + BMVert *eve = bm_original_vert_get(mr, ml->v); + if (efa) { + mesh_render_data_face_flag(mr, efa, -1, data); + } + if (eed) { + mesh_render_data_edge_flag(mr, eed, data); + } + if (eve) { + mesh_render_data_vert_flag(mr, eve, data); + } + } +} + +static void extract_edit_data_iter_ledge_bm(const MeshRenderData *mr, + const BMEdge *eed, + const int ledge_index, + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + EditLoopData *data = vbo_data + mr->loop_len + (ledge_index * 2); + memset(data, 0x0, sizeof(*data) * 2); + mesh_render_data_edge_flag(mr, eed, &data[0]); + data[1] = data[0]; + mesh_render_data_vert_flag(mr, eed->v1, &data[0]); + mesh_render_data_vert_flag(mr, eed->v2, &data[1]); +} + +static void extract_edit_data_iter_ledge_mesh(const MeshRenderData *mr, + const MEdge *med, + const int ledge_index, + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + EditLoopData *data = vbo_data + mr->loop_len + ledge_index * 2; + memset(data, 0x0, sizeof(*data) * 2); + const int e_index = mr->ledges[ledge_index]; + BMEdge *eed = bm_original_edge_get(mr, e_index); + BMVert *eve1 = bm_original_vert_get(mr, med->v1); + BMVert *eve2 = bm_original_vert_get(mr, med->v2); + if (eed) { + mesh_render_data_edge_flag(mr, eed, &data[0]); + data[1] = data[0]; + } + if (eve1) { + mesh_render_data_vert_flag(mr, eve1, &data[0]); + } + if (eve2) { + mesh_render_data_vert_flag(mr, eve2, &data[1]); + } +} + +static void extract_edit_data_iter_lvert_bm(const MeshRenderData *mr, + const BMVert *eve, + const int lvert_index, + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + const int offset = mr->loop_len + (mr->edge_loose_len * 2); + EditLoopData *data = vbo_data + offset + lvert_index; + memset(data, 0x0, sizeof(*data)); + mesh_render_data_vert_flag(mr, eve, data); +} + +static void extract_edit_data_iter_lvert_mesh(const MeshRenderData *mr, + const MVert *UNUSED(mv), + const int lvert_index, + void *_data) +{ + EditLoopData *vbo_data = *(EditLoopData **)_data; + const int offset = mr->loop_len + (mr->edge_loose_len * 2); + + EditLoopData *data = vbo_data + offset + lvert_index; + memset(data, 0x0, sizeof(*data)); + const int v_index = mr->lverts[lvert_index]; + BMVert *eve = bm_original_vert_get(mr, v_index); + if (eve) { + mesh_render_data_vert_flag(mr, eve, data); + } +} + +constexpr MeshExtract create_extractor_edit_data() +{ + MeshExtract extractor = {nullptr}; + extractor.init = extract_edit_data_init; + extractor.iter_poly_bm = extract_edit_data_iter_poly_bm; + extractor.iter_poly_mesh = extract_edit_data_iter_poly_mesh; + extractor.iter_ledge_bm = extract_edit_data_iter_ledge_bm; + extractor.iter_ledge_mesh = extract_edit_data_iter_ledge_mesh; + extractor.iter_lvert_bm = extract_edit_data_iter_lvert_bm; + extractor.iter_lvert_mesh = extract_edit_data_iter_lvert_mesh; + extractor.data_type = MR_DATA_NONE; + extractor.data_size = sizeof(EditLoopData *); + extractor.use_threading = true; + extractor.mesh_buffer_offset = offsetof(MeshBufferCache, vbo.edit_data); + return extractor; +} + +/** \} */ + +} // namespace blender::draw + +extern "C" { +const MeshExtract extract_edit_data = blender::draw::create_extractor_edit_data(); +} |