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/*
* 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.
*
* Copyright 2019, Blender Foundation.
*/
/** \file
* \ingroup draw
*/
#pragma once
struct TaskGraph;
#include "GPU_batch.h"
#include "GPU_index_buffer.h"
#include "GPU_vertex_buffer.h"
/* Vertex Group Selection and display options */
typedef struct DRW_MeshWeightState {
int defgroup_active;
int defgroup_len;
short flags;
char alert_mode;
/* Set of all selected bones for Multipaint. */
bool *defgroup_sel; /* [defgroup_len] */
int defgroup_sel_count;
/* Set of all locked and unlocked deform bones for Lock Relative mode. */
bool *defgroup_locked; /* [defgroup_len] */
bool *defgroup_unlocked; /* [defgroup_len] */
} DRW_MeshWeightState;
/* DRW_MeshWeightState.flags */
enum {
DRW_MESH_WEIGHT_STATE_MULTIPAINT = (1 << 0),
DRW_MESH_WEIGHT_STATE_AUTO_NORMALIZE = (1 << 1),
DRW_MESH_WEIGHT_STATE_LOCK_RELATIVE = (1 << 2),
};
typedef struct DRW_MeshCDMask {
uint32_t uv : 8;
uint32_t tan : 8;
uint32_t vcol : 8;
uint32_t sculpt_vcol : 8;
uint32_t orco : 1;
uint32_t tan_orco : 1;
uint32_t sculpt_overlays : 1;
/** Edit uv layer is from the base edit mesh as
* modifiers could remove it. (see T68857) */
uint32_t edit_uv : 1;
} DRW_MeshCDMask;
/* Keep `DRW_MeshCDMask` struct within an `uint64_t`.
* bit-wise and atomic operations are used to compare and update the struct.
* See `mesh_cd_layers_type_*` functions. */
BLI_STATIC_ASSERT(sizeof(DRW_MeshCDMask) <= sizeof(uint64_t), "DRW_MeshCDMask exceeds 64 bits")
typedef enum eMRIterType {
MR_ITER_LOOPTRI = 1 << 0,
MR_ITER_POLY = 1 << 1,
MR_ITER_LEDGE = 1 << 2,
MR_ITER_LVERT = 1 << 3,
} eMRIterType;
ENUM_OPERATORS(eMRIterType, MR_ITER_LVERT)
typedef enum eMRDataType {
MR_DATA_NONE = 0,
MR_DATA_POLY_NOR = 1 << 1,
MR_DATA_LOOP_NOR = 1 << 2,
MR_DATA_LOOPTRI = 1 << 3,
/** Force loop normals calculation. */
MR_DATA_TAN_LOOP_NOR = 1 << 4,
} eMRDataType;
ENUM_OPERATORS(eMRDataType, MR_DATA_TAN_LOOP_NOR)
#ifdef __cplusplus
extern "C" {
#endif
BLI_INLINE int mesh_render_mat_len_get(const Mesh *me)
{
/* In edit mode, the displayed mesh is stored in the edit-mesh. */
if (me->edit_mesh && me->edit_mesh->mesh_eval_final) {
return MAX2(1, me->edit_mesh->mesh_eval_final->totcol);
}
return MAX2(1, me->totcol);
}
typedef struct MeshBufferCache {
/* Every VBO below contains at least enough
* data for every loops in the mesh (except fdots and skin roots).
* For some VBOs, it extends to (in this exact order) :
* loops + loose_edges*2 + loose_verts */
struct {
GPUVertBuf *pos_nor; /* extend */
GPUVertBuf *lnor; /* extend */
GPUVertBuf *edge_fac; /* extend */
GPUVertBuf *weights; /* extend */
GPUVertBuf *uv;
GPUVertBuf *tan;
GPUVertBuf *vcol;
GPUVertBuf *sculpt_data;
GPUVertBuf *orco;
/* Only for edit mode. */
GPUVertBuf *edit_data; /* extend */
GPUVertBuf *edituv_data;
GPUVertBuf *edituv_stretch_area;
GPUVertBuf *edituv_stretch_angle;
GPUVertBuf *mesh_analysis;
GPUVertBuf *fdots_pos;
GPUVertBuf *fdots_nor;
GPUVertBuf *fdots_uv;
// GPUVertBuf *fdots_edit_data; /* inside fdots_nor for now. */
GPUVertBuf *fdots_edituv_data;
GPUVertBuf *skin_roots;
/* Selection */
GPUVertBuf *vert_idx; /* extend */
GPUVertBuf *edge_idx; /* extend */
GPUVertBuf *poly_idx;
GPUVertBuf *fdot_idx;
} vbo;
/* Index Buffers:
* Only need to be updated when topology changes. */
struct {
/* Indices to vloops. */
GPUIndexBuf *tris; /* Ordered per material. */
GPUIndexBuf *lines; /* Loose edges last. */
GPUIndexBuf *lines_loose; /* sub buffer of `lines` only containing the loose edges. */
GPUIndexBuf *points;
GPUIndexBuf *fdots;
/* 3D overlays. */
GPUIndexBuf *lines_paint_mask; /* no loose edges. */
GPUIndexBuf *lines_adjacency;
/* Uv overlays. (visibility can differ from 3D view) */
GPUIndexBuf *edituv_tris;
GPUIndexBuf *edituv_lines;
GPUIndexBuf *edituv_points;
GPUIndexBuf *edituv_fdots;
} ibo;
/* Index buffer per material. These are subranges of `ibo.tris` */
GPUIndexBuf **tris_per_mat;
} MeshBufferCache;
/**
* Data that are kept around between extractions to reduce rebuilding time.
*
* - Loose geometry.
*/
typedef struct MeshBufferExtractionCache {
struct {
int edge_len;
int vert_len;
int *verts;
int *edges;
} loose_geom;
} MeshBufferExtractionCache;
typedef enum DRWBatchFlag {
MBC_SURFACE = (1 << 0),
MBC_SURFACE_WEIGHTS = (1 << 1),
MBC_EDIT_TRIANGLES = (1 << 2),
MBC_EDIT_VERTICES = (1 << 3),
MBC_EDIT_EDGES = (1 << 4),
MBC_EDIT_VNOR = (1 << 5),
MBC_EDIT_LNOR = (1 << 6),
MBC_EDIT_FACEDOTS = (1 << 7),
MBC_EDIT_MESH_ANALYSIS = (1 << 8),
MBC_EDITUV_FACES_STRETCH_AREA = (1 << 9),
MBC_EDITUV_FACES_STRETCH_ANGLE = (1 << 10),
MBC_EDITUV_FACES = (1 << 11),
MBC_EDITUV_EDGES = (1 << 12),
MBC_EDITUV_VERTS = (1 << 13),
MBC_EDITUV_FACEDOTS = (1 << 14),
MBC_EDIT_SELECTION_VERTS = (1 << 15),
MBC_EDIT_SELECTION_EDGES = (1 << 16),
MBC_EDIT_SELECTION_FACES = (1 << 17),
MBC_EDIT_SELECTION_FACEDOTS = (1 << 18),
MBC_ALL_VERTS = (1 << 19),
MBC_ALL_EDGES = (1 << 20),
MBC_LOOSE_EDGES = (1 << 21),
MBC_EDGE_DETECTION = (1 << 22),
MBC_WIRE_EDGES = (1 << 23),
MBC_WIRE_LOOPS = (1 << 24),
MBC_WIRE_LOOPS_UVS = (1 << 25),
MBC_SKIN_ROOTS = (1 << 26),
MBC_SCULPT_OVERLAYS = (1 << 27),
} DRWBatchFlag;
#define MBC_EDITUV \
(MBC_EDITUV_FACES_STRETCH_AREA | MBC_EDITUV_FACES_STRETCH_ANGLE | MBC_EDITUV_FACES | \
MBC_EDITUV_EDGES | MBC_EDITUV_VERTS | MBC_EDITUV_FACEDOTS | MBC_WIRE_LOOPS_UVS)
#define FOREACH_MESH_BUFFER_CACHE(batch_cache, mbc) \
for (MeshBufferCache *mbc = &batch_cache->final; \
mbc == &batch_cache->final || mbc == &batch_cache->cage || mbc == &batch_cache->uv_cage; \
mbc = (mbc == &batch_cache->final) ? \
&batch_cache->cage : \
((mbc == &batch_cache->cage) ? &batch_cache->uv_cage : NULL))
typedef struct MeshBatchCache {
MeshBufferCache final, cage, uv_cage;
MeshBufferExtractionCache final_extraction_cache;
MeshBufferExtractionCache cage_extraction_cache;
MeshBufferExtractionCache uv_cage_extraction_cache;
struct {
/* Surfaces / Render */
GPUBatch *surface;
GPUBatch *surface_weights;
/* Edit mode */
GPUBatch *edit_triangles;
GPUBatch *edit_vertices;
GPUBatch *edit_edges;
GPUBatch *edit_vnor;
GPUBatch *edit_lnor;
GPUBatch *edit_fdots;
GPUBatch *edit_mesh_analysis;
GPUBatch *edit_skin_roots;
/* Edit UVs */
GPUBatch *edituv_faces_stretch_area;
GPUBatch *edituv_faces_stretch_angle;
GPUBatch *edituv_faces;
GPUBatch *edituv_edges;
GPUBatch *edituv_verts;
GPUBatch *edituv_fdots;
/* Edit selection */
GPUBatch *edit_selection_verts;
GPUBatch *edit_selection_edges;
GPUBatch *edit_selection_faces;
GPUBatch *edit_selection_fdots;
/* Common display / Other */
GPUBatch *all_verts;
GPUBatch *all_edges;
GPUBatch *loose_edges;
GPUBatch *edge_detection;
GPUBatch *wire_edges; /* Individual edges with face normals. */
GPUBatch *wire_loops; /* Loops around faces. no edges between selected faces */
GPUBatch *wire_loops_uvs; /* Same as wire_loops but only has uvs. */
GPUBatch *sculpt_overlays;
} batch;
GPUBatch **surface_per_mat;
DRWBatchFlag batch_requested;
DRWBatchFlag batch_ready;
/* settings to determine if cache is invalid */
int edge_len;
int tri_len;
int poly_len;
int vert_len;
int mat_len;
bool is_dirty; /* Instantly invalidates cache, skipping mesh check */
bool is_editmode;
bool is_uvsyncsel;
struct DRW_MeshWeightState weight_state;
DRW_MeshCDMask cd_used, cd_needed, cd_used_over_time;
int lastmatch;
/* Valid only if edge_detection is up to date. */
bool is_manifold;
/* Total areas for drawing UV Stretching. Contains the summed area in mesh
* space (`tot_area`) and the summed area in uv space (`tot_uvarea`).
*
* Only valid after `DRW_mesh_batch_cache_create_requested` has been called. */
float tot_area, tot_uv_area;
bool no_loose_wire;
} MeshBatchCache;
#define MBC_BATCH_LEN (sizeof(((MeshBatchCache){0}).batch) / sizeof(void *))
#define MBC_VBO_LEN (sizeof(((MeshBufferCache){0}).vbo) / sizeof(void *))
#define MBC_IBO_LEN (sizeof(((MeshBufferCache){0}).ibo) / sizeof(void *))
void mesh_buffer_cache_create_requested(struct TaskGraph *task_graph,
MeshBatchCache *cache,
MeshBufferCache *mbc,
MeshBufferExtractionCache *extraction_cache,
Mesh *me,
const bool is_editmode,
const bool is_paint_mode,
const bool is_mode_active,
const float obmat[4][4],
const bool do_final,
const bool do_uvedit,
const bool use_subsurf_fdots,
const Scene *scene,
const ToolSettings *ts,
const bool use_hide);
#ifdef __cplusplus
}
#endif
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