Blender  V3.3
gpencil_add_stroke.c
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1 /* SPDX-License-Identifier: GPL-2.0-or-later
2  * Copyright 2017 Blender Foundation. */
3 
8 #include "BLI_math.h"
9 #include "BLI_utildefines.h"
10 
11 #include "DNA_gpencil_types.h"
12 #include "DNA_material_types.h"
13 #include "DNA_object_types.h"
14 #include "DNA_scene_types.h"
15 
16 #include "BKE_context.h"
17 #include "BKE_gpencil.h"
18 #include "BKE_gpencil_geom.h"
19 #include "BKE_main.h"
20 #include "BKE_material.h"
21 
22 #include "BLT_translation.h"
23 
24 #include "DEG_depsgraph.h"
25 
26 #include "ED_gpencil.h"
27 
28 /* Definition of the most important info from a color */
29 typedef struct ColorTemplate {
30  const char *name;
31  float line[4];
32  float fill[4];
34 
35 /* Add color an ensure duplications (matched by name) */
36 static int gpencil_stroke_material(Main *bmain,
37  Object *ob,
38  const ColorTemplate *pct,
39  const bool fill)
40 {
41  int index;
42  Material *ma = BKE_gpencil_object_material_ensure_by_name(bmain, ob, DATA_(pct->name), &index);
43 
44  copy_v4_v4(ma->gp_style->stroke_rgba, pct->line);
46 
47  copy_v4_v4(ma->gp_style->fill_rgba, pct->fill);
49 
50  if (fill) {
52  }
53 
54  return index;
55 }
56 
57 /* ***************************************************************** */
58 /* Stroke Geometry */
59 
60 static const float data0[175 * GP_PRIM_DATABUF_SIZE] = {
61  -1.281f, 0.0f, -0.315f, 0.038f, 1.0f, -1.269f, 0.0f, -0.302f, 0.069f, 1.0f,
62  -1.261f, 0.0f, -0.293f, 0.089f, 1.0f, -1.251f, 0.0f, -0.282f, 0.112f, 1.0f,
63  -1.241f, 0.0f, -0.271f, 0.134f, 1.0f, -1.23f, 0.0f, -0.259f, 0.155f, 1.0f,
64  -1.219f, 0.0f, -0.247f, 0.175f, 1.0f, -1.208f, 0.0f, -0.234f, 0.194f, 1.0f,
65  -1.196f, 0.0f, -0.221f, 0.211f, 1.0f, -1.184f, 0.0f, -0.208f, 0.227f, 1.0f,
66  -1.172f, 0.0f, -0.194f, 0.242f, 1.0f, -1.159f, 0.0f, -0.18f, 0.256f, 1.0f,
67  -1.147f, 0.0f, -0.165f, 0.268f, 1.0f, -1.134f, 0.0f, -0.151f, 0.28f, 1.0f,
68  -1.121f, 0.0f, -0.136f, 0.29f, 1.0f, -1.108f, 0.0f, -0.121f, 0.299f, 1.0f,
69  -1.094f, 0.0f, -0.106f, 0.307f, 1.0f, -1.08f, 0.0f, -0.091f, 0.315f, 1.0f,
70  -1.066f, 0.0f, -0.076f, 0.322f, 1.0f, -1.052f, 0.0f, -0.061f, 0.329f, 1.0f,
71  -1.037f, 0.0f, -0.047f, 0.335f, 1.0f, -1.022f, 0.0f, -0.032f, 0.341f, 1.0f,
72  -1.007f, 0.0f, -0.017f, 0.346f, 1.0f, -0.991f, 0.0f, -0.003f, 0.351f, 1.0f,
73  -0.975f, 0.0f, 0.012f, 0.355f, 1.0f, -0.959f, 0.0f, 0.027f, 0.36f, 1.0f,
74  -0.942f, 0.0f, 0.041f, 0.364f, 1.0f, -0.926f, 0.0f, 0.056f, 0.368f, 1.0f,
75  -0.909f, 0.0f, 0.071f, 0.371f, 1.0f, -0.893f, 0.0f, 0.086f, 0.373f, 1.0f,
76  -0.876f, 0.0f, 0.1f, 0.376f, 1.0f, -0.859f, 0.0f, 0.115f, 0.377f, 1.0f,
77  -0.842f, 0.0f, 0.129f, 0.378f, 1.0f, -0.824f, 0.0f, 0.144f, 0.379f, 1.0f,
78  -0.807f, 0.0f, 0.158f, 0.379f, 1.0f, -0.79f, 0.0f, 0.172f, 0.379f, 1.0f,
79  -0.773f, 0.0f, 0.186f, 0.38f, 1.0f, -0.755f, 0.0f, 0.199f, 0.38f, 1.0f,
80  -0.738f, 0.0f, 0.212f, 0.381f, 1.0f, -0.721f, 0.0f, 0.224f, 0.382f, 1.0f,
81  -0.703f, 0.0f, 0.236f, 0.384f, 1.0f, -0.686f, 0.0f, 0.248f, 0.386f, 1.0f,
82  -0.67f, 0.0f, 0.26f, 0.388f, 1.0f, -0.653f, 0.0f, 0.27f, 0.39f, 1.0f,
83  -0.637f, 0.0f, 0.28f, 0.393f, 1.0f, -0.621f, 0.0f, 0.29f, 0.396f, 1.0f,
84  -0.605f, 0.0f, 0.298f, 0.399f, 1.0f, -0.589f, 0.0f, 0.306f, 0.403f, 1.0f,
85  -0.574f, 0.0f, 0.313f, 0.407f, 1.0f, -0.559f, 0.0f, 0.319f, 0.411f, 1.0f,
86  -0.544f, 0.0f, 0.325f, 0.415f, 1.0f, -0.53f, 0.0f, 0.331f, 0.42f, 1.0f,
87  -0.516f, 0.0f, 0.336f, 0.425f, 1.0f, -0.503f, 0.0f, 0.34f, 0.431f, 1.0f,
88  -0.489f, 0.0f, 0.344f, 0.437f, 1.0f, -0.477f, 0.0f, 0.347f, 0.443f, 1.0f,
89  -0.464f, 0.0f, 0.35f, 0.45f, 1.0f, -0.452f, 0.0f, 0.352f, 0.457f, 1.0f,
90  -0.44f, 0.0f, 0.354f, 0.464f, 1.0f, -0.429f, 0.0f, 0.355f, 0.471f, 1.0f,
91  -0.418f, 0.0f, 0.355f, 0.479f, 1.0f, -0.407f, 0.0f, 0.355f, 0.487f, 1.0f,
92  -0.397f, 0.0f, 0.354f, 0.495f, 1.0f, -0.387f, 0.0f, 0.353f, 0.503f, 1.0f,
93  -0.378f, 0.0f, 0.351f, 0.512f, 1.0f, -0.368f, 0.0f, 0.348f, 0.52f, 1.0f,
94  -0.36f, 0.0f, 0.344f, 0.528f, 1.0f, -0.351f, 0.0f, 0.34f, 0.537f, 1.0f,
95  -0.344f, 0.0f, 0.336f, 0.545f, 1.0f, -0.336f, 0.0f, 0.33f, 0.553f, 1.0f,
96  -0.329f, 0.0f, 0.324f, 0.562f, 1.0f, -0.322f, 0.0f, 0.318f, 0.57f, 1.0f,
97  -0.316f, 0.0f, 0.31f, 0.579f, 1.0f, -0.311f, 0.0f, 0.303f, 0.588f, 1.0f,
98  -0.306f, 0.0f, 0.294f, 0.597f, 1.0f, -0.301f, 0.0f, 0.285f, 0.606f, 1.0f,
99  -0.297f, 0.0f, 0.275f, 0.615f, 1.0f, -0.293f, 0.0f, 0.264f, 0.625f, 1.0f,
100  -0.29f, 0.0f, 0.253f, 0.635f, 1.0f, -0.288f, 0.0f, 0.241f, 0.644f, 1.0f,
101  -0.286f, 0.0f, 0.229f, 0.654f, 1.0f, -0.285f, 0.0f, 0.216f, 0.664f, 1.0f,
102  -0.284f, 0.0f, 0.202f, 0.675f, 1.0f, -0.283f, 0.0f, 0.188f, 0.685f, 1.0f,
103  -0.283f, 0.0f, 0.173f, 0.696f, 1.0f, -0.284f, 0.0f, 0.158f, 0.707f, 1.0f,
104  -0.285f, 0.0f, 0.142f, 0.718f, 1.0f, -0.286f, 0.0f, 0.125f, 0.729f, 1.0f,
105  -0.288f, 0.0f, 0.108f, 0.74f, 1.0f, -0.29f, 0.0f, 0.091f, 0.751f, 1.0f,
106  -0.293f, 0.0f, 0.073f, 0.761f, 1.0f, -0.295f, 0.0f, 0.054f, 0.772f, 1.0f,
107  -0.298f, 0.0f, 0.035f, 0.782f, 1.0f, -0.302f, 0.0f, 0.016f, 0.793f, 1.0f,
108  -0.305f, 0.0f, -0.004f, 0.804f, 1.0f, -0.309f, 0.0f, -0.024f, 0.815f, 1.0f,
109  -0.313f, 0.0f, -0.044f, 0.828f, 1.0f, -0.317f, 0.0f, -0.065f, 0.843f, 1.0f,
110  -0.321f, 0.0f, -0.085f, 0.86f, 1.0f, -0.326f, 0.0f, -0.106f, 0.879f, 1.0f,
111  -0.33f, 0.0f, -0.127f, 0.897f, 1.0f, -0.335f, 0.0f, -0.148f, 0.915f, 1.0f,
112  -0.339f, 0.0f, -0.168f, 0.932f, 1.0f, -0.344f, 0.0f, -0.189f, 0.947f, 1.0f,
113  -0.348f, 0.0f, -0.21f, 0.962f, 1.0f, -0.353f, 0.0f, -0.23f, 0.974f, 1.0f,
114  -0.357f, 0.0f, -0.25f, 0.985f, 1.0f, -0.361f, 0.0f, -0.27f, 0.995f, 1.0f,
115  -0.365f, 0.0f, -0.29f, 1.004f, 1.0f, -0.369f, 0.0f, -0.309f, 1.011f, 1.0f,
116  -0.372f, 0.0f, -0.328f, 1.018f, 1.0f, -0.375f, 0.0f, -0.347f, 1.024f, 1.0f,
117  -0.377f, 0.0f, -0.365f, 1.029f, 1.0f, -0.379f, 0.0f, -0.383f, 1.033f, 1.0f,
118  -0.38f, 0.0f, -0.4f, 1.036f, 1.0f, -0.38f, 0.0f, -0.417f, 1.037f, 1.0f,
119  -0.38f, 0.0f, -0.434f, 1.037f, 1.0f, -0.379f, 0.0f, -0.449f, 1.035f, 1.0f,
120  -0.377f, 0.0f, -0.464f, 1.032f, 1.0f, -0.374f, 0.0f, -0.478f, 1.029f, 1.0f,
121  -0.371f, 0.0f, -0.491f, 1.026f, 1.0f, -0.366f, 0.0f, -0.503f, 1.023f, 1.0f,
122  -0.361f, 0.0f, -0.513f, 1.021f, 1.0f, -0.354f, 0.0f, -0.523f, 1.019f, 1.0f,
123  -0.347f, 0.0f, -0.531f, 1.017f, 1.0f, -0.339f, 0.0f, -0.538f, 1.016f, 1.0f,
124  -0.33f, 0.0f, -0.543f, 1.016f, 1.0f, -0.32f, 0.0f, -0.547f, 1.016f, 1.0f,
125  -0.31f, 0.0f, -0.549f, 1.016f, 1.0f, -0.298f, 0.0f, -0.55f, 1.017f, 1.0f,
126  -0.286f, 0.0f, -0.55f, 1.017f, 1.0f, -0.274f, 0.0f, -0.548f, 1.018f, 1.0f,
127  -0.261f, 0.0f, -0.544f, 1.017f, 1.0f, -0.247f, 0.0f, -0.539f, 1.017f, 1.0f,
128  -0.232f, 0.0f, -0.533f, 1.016f, 1.0f, -0.218f, 0.0f, -0.525f, 1.015f, 1.0f,
129  -0.202f, 0.0f, -0.515f, 1.013f, 1.0f, -0.186f, 0.0f, -0.503f, 1.009f, 1.0f,
130  -0.169f, 0.0f, -0.49f, 1.005f, 1.0f, -0.151f, 0.0f, -0.475f, 0.998f, 1.0f,
131  -0.132f, 0.0f, -0.458f, 0.99f, 1.0f, -0.112f, 0.0f, -0.44f, 0.98f, 1.0f,
132  -0.091f, 0.0f, -0.42f, 0.968f, 1.0f, -0.069f, 0.0f, -0.398f, 0.955f, 1.0f,
133  -0.045f, 0.0f, -0.375f, 0.939f, 1.0f, -0.021f, 0.0f, -0.35f, 0.923f, 1.0f,
134  0.005f, 0.0f, -0.324f, 0.908f, 1.0f, 0.031f, 0.0f, -0.297f, 0.895f, 1.0f,
135  0.06f, 0.0f, -0.268f, 0.882f, 1.0f, 0.089f, 0.0f, -0.238f, 0.87f, 1.0f,
136  0.12f, 0.0f, -0.207f, 0.858f, 1.0f, 0.153f, 0.0f, -0.175f, 0.844f, 1.0f,
137  0.187f, 0.0f, -0.14f, 0.828f, 1.0f, 0.224f, 0.0f, -0.104f, 0.81f, 1.0f,
138  0.262f, 0.0f, -0.067f, 0.79f, 1.0f, 0.302f, 0.0f, -0.027f, 0.769f, 1.0f,
139  0.344f, 0.0f, 0.014f, 0.747f, 1.0f, 0.388f, 0.0f, 0.056f, 0.724f, 1.0f,
140  0.434f, 0.0f, 0.1f, 0.7f, 1.0f, 0.483f, 0.0f, 0.145f, 0.676f, 1.0f,
141  0.533f, 0.0f, 0.191f, 0.651f, 1.0f, 0.585f, 0.0f, 0.238f, 0.625f, 1.0f,
142  0.637f, 0.0f, 0.284f, 0.599f, 1.0f, 0.69f, 0.0f, 0.33f, 0.573f, 1.0f,
143  0.746f, 0.0f, 0.376f, 0.546f, 1.0f, 0.802f, 0.0f, 0.421f, 0.516f, 1.0f,
144  0.859f, 0.0f, 0.464f, 0.483f, 1.0f, 0.915f, 0.0f, 0.506f, 0.446f, 1.0f,
145  0.97f, 0.0f, 0.545f, 0.407f, 1.0f, 1.023f, 0.0f, 0.581f, 0.365f, 1.0f,
146  1.075f, 0.0f, 0.614f, 0.322f, 1.0f, 1.122f, 0.0f, 0.643f, 0.28f, 1.0f,
147  1.169f, 0.0f, 0.671f, 0.236f, 1.0f, 1.207f, 0.0f, 0.693f, 0.202f, 1.0f,
148  1.264f, 0.0f, 0.725f, 0.155f, 1.0f,
149 };
150 
151 /* ***************************************************************** */
152 /* Color Data */
153 
155  N_("Black"),
156  {0.0f, 0.0f, 0.0f, 1.0f},
157  {0.0f, 0.0f, 0.0f, 0.0f},
158 };
159 
161  N_("White"),
162  {1.0f, 1.0f, 1.0f, 1.0f},
163  {0.0f, 0.0f, 0.0f, 0.0f},
164 };
165 
167  N_("Red"),
168  {1.0f, 0.0f, 0.0f, 1.0f},
169  {0.0f, 0.0f, 0.0f, 0.0f},
170 };
171 
173  N_("Green"),
174  {0.0f, 1.0f, 0.0f, 1.0f},
175  {0.0f, 0.0f, 0.0f, 0.0f},
176 };
177 
179  N_("Blue"),
180  {0.0f, 0.0f, 1.0f, 1.0f},
181  {0.0f, 0.0f, 0.0f, 0.0f},
182 };
183 
185  N_("Grey"),
186  {0.358f, 0.358f, 0.358f, 1.0f},
187  {0.5f, 0.5f, 0.5f, 1.0f},
188 };
189 
190 /* ***************************************************************** */
191 /* Stroke API */
192 
193 void ED_gpencil_create_stroke(bContext *C, Object *ob, float mat[4][4])
194 {
195  Main *bmain = CTX_data_main(C);
197  bGPdata *gpd = (bGPdata *)ob->data;
198  bGPDstroke *gps;
199 
200  /* create colors */
201  int color_black = gpencil_stroke_material(bmain, ob, &gp_stroke_material_black, false);
207 
208  /* set first color as active and in brushes */
209  ob->actcol = color_black + 1;
210 
211  /* layers */
212  bGPDlayer *colors = BKE_gpencil_layer_addnew(gpd, "Colors", false, false);
213  bGPDlayer *lines = BKE_gpencil_layer_addnew(gpd, "Lines", true, false);
214 
215  /* frames */
216  bGPDframe *frame_color = BKE_gpencil_frame_addnew(colors, scene->r.cfra);
217  bGPDframe *frame_lines = BKE_gpencil_frame_addnew(lines, scene->r.cfra);
218  UNUSED_VARS(frame_color);
219 
220  /* generate stroke */
221  gps = BKE_gpencil_stroke_add(frame_lines, color_black, 175, 75, false);
222  ED_gpencil_stroke_init_data(gps, data0, 175, mat);
224 
225  /* update depsgraph */
228 }
struct Scene * CTX_data_scene(const bContext *C)
Definition: context.c:1090
struct Main * CTX_data_main(const bContext *C)
Definition: context.c:1074
struct bGPDframe * BKE_gpencil_frame_addnew(struct bGPDlayer *gpl, int cframe)
Definition: gpencil.c:514
struct Material * BKE_gpencil_object_material_ensure_by_name(struct Main *bmain, struct Object *ob, const char *name, int *r_index)
Definition: gpencil.c:2228
struct bGPDlayer * BKE_gpencil_layer_addnew(struct bGPdata *gpd, const char *name, bool setactive, bool add_to_header)
Definition: gpencil.c:621
struct bGPDstroke * BKE_gpencil_stroke_add(struct bGPDframe *gpf, int mat_idx, int totpoints, short thickness, bool insert_at_head)
Definition: gpencil.c:792
void BKE_gpencil_stroke_geometry_update(struct bGPdata *gpd, struct bGPDstroke *gps)
General operations, lookup, etc. for materials.
MINLINE void srgb_to_linearrgb_v4(float linear[4], const float srgb[4])
MINLINE void copy_v4_v4(float r[4], const float a[4])
#define UNUSED_VARS(...)
#define DATA_(msgid)
void DEG_id_tag_update(struct ID *id, int flag)
@ ID_RECALC_TRANSFORM
Definition: DNA_ID.h:771
@ ID_RECALC_GEOMETRY
Definition: DNA_ID.h:791
@ GP_DATA_CACHE_IS_DIRTY
@ GP_MATERIAL_FILL_SHOW
Object is a sort of wrapper for general info.
#define GP_PRIM_DATABUF_SIZE
Definition: ED_gpencil.h:388
#define C
Definition: RandGen.cpp:25
Scene scene
void ED_gpencil_stroke_init_data(bGPDstroke *gps, const float *array, const int totpoints, const float mat[4][4])
static const ColorTemplate gp_stroke_material_blue
static const ColorTemplate gp_stroke_material_white
static const ColorTemplate gp_stroke_material_green
static int gpencil_stroke_material(Main *bmain, Object *ob, const ColorTemplate *pct, const bool fill)
static const ColorTemplate gp_stroke_material_grey
static const ColorTemplate gp_stroke_material_black
void ED_gpencil_create_stroke(bContext *C, Object *ob, float mat[4][4])
static const float data0[175 *GP_PRIM_DATABUF_SIZE]
static const ColorTemplate gp_stroke_material_red
struct ColorTemplate ColorTemplate
const char * name
Definition: BKE_main.h:121
struct MaterialGPencilStyle * gp_style
void * data
struct RenderData r
#define N_(msgid)