1221 lines
40 KiB
C
1221 lines
40 KiB
C
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2008, Blender Foundation
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* This is a new part of Blender
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*/
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/** \file
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* \ingroup edgpencil
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*/
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stddef.h>
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#include <math.h>
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#include <float.h>
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#include "MEM_guardedalloc.h"
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#include "BLI_sys_types.h"
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#include "BLI_math.h"
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#include "BLI_utildefines.h"
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#include "BLI_polyfill_2d.h"
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#include "BLF_api.h"
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#include "BLT_translation.h"
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#include "DNA_brush_types.h"
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#include "DNA_gpencil_types.h"
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#include "DNA_scene_types.h"
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#include "DNA_screen_types.h"
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#include "DNA_space_types.h"
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#include "DNA_view3d_types.h"
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#include "DNA_userdef_types.h"
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#include "DNA_object_types.h"
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#include "BKE_context.h"
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#include "BKE_brush.h"
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#include "BKE_global.h"
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#include "BKE_paint.h"
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#include "BKE_gpencil.h"
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#include "BKE_image.h"
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#include "DEG_depsgraph.h"
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#include "WM_api.h"
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#include "BIF_glutil.h"
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#include "GPU_immediate.h"
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#include "GPU_draw.h"
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#include "GPU_state.h"
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#include "ED_gpencil.h"
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#include "ED_screen.h"
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#include "ED_view3d.h"
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#include "ED_space_api.h"
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#include "UI_interface_icons.h"
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#include "UI_resources.h"
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#include "IMB_imbuf_types.h"
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#include "gpencil_intern.h"
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/* ************************************************** */
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/* GREASE PENCIL DRAWING */
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/* ----- General Defines ------ */
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/* flags for sflag */
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typedef enum eDrawStrokeFlags {
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/** don't draw status info */
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GP_DRAWDATA_NOSTATUS = (1 << 0),
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/** only draw 3d-strokes */
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GP_DRAWDATA_ONLY3D = (1 << 1),
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/** only draw 'canvas' strokes */
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GP_DRAWDATA_ONLYV2D = (1 << 2),
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/** only draw 'image' strokes */
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GP_DRAWDATA_ONLYI2D = (1 << 3),
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/** special hack for drawing strokes in Image Editor (weird coordinates) */
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GP_DRAWDATA_IEDITHACK = (1 << 4),
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/** don't draw xray in 3D view (which is default) */
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GP_DRAWDATA_NO_XRAY = (1 << 5),
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/** no onionskins should be drawn (for animation playback) */
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GP_DRAWDATA_NO_ONIONS = (1 << 6),
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/** draw strokes as "volumetric" circular billboards */
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GP_DRAWDATA_VOLUMETRIC = (1 << 7),
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/** fill insides/bounded-regions of strokes */
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GP_DRAWDATA_FILL = (1 << 8),
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} eDrawStrokeFlags;
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/* thickness above which we should use special drawing */
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#if 0
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# define GP_DRAWTHICKNESS_SPECIAL 3
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#endif
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/* conversion utility (float --> normalized unsigned byte) */
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#define F2UB(x) (uchar)(255.0f * x)
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/* ----- Tool Buffer Drawing ------ */
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/* helper functions to set color of buffer point */
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static void gp_set_point_uniform_color(const bGPDspoint *pt, const float ink[4])
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{
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float alpha = ink[3] * pt->strength;
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CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f);
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immUniformColor3fvAlpha(ink, alpha);
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}
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static void gp_set_point_varying_color(const bGPDspoint *pt,
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const float ink[4],
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uint attr_id,
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bool fix_strength)
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{
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float alpha = ink[3] * pt->strength;
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if ((fix_strength) && (alpha >= 0.1f)) {
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alpha = 1.0f;
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}
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CLAMP(alpha, GPENCIL_STRENGTH_MIN, 1.0f);
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immAttr4ub(attr_id, F2UB(ink[0]), F2UB(ink[1]), F2UB(ink[2]), F2UB(alpha));
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}
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/* --------- 2D Stroke Drawing Helpers --------- */
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/* change in parameter list */
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static void gp_calc_2d_stroke_fxy(
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const float pt[3], short sflag, int offsx, int offsy, int winx, int winy, float r_co[2])
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{
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if (sflag & GP_STROKE_2DSPACE) {
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r_co[0] = pt[0];
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r_co[1] = pt[1];
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}
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else if (sflag & GP_STROKE_2DIMAGE) {
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const float x = (float)((pt[0] * winx) + offsx);
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const float y = (float)((pt[1] * winy) + offsy);
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r_co[0] = x;
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r_co[1] = y;
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}
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else {
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const float x = (float)(pt[0] / 100 * winx) + offsx;
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const float y = (float)(pt[1] / 100 * winy) + offsy;
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r_co[0] = x;
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r_co[1] = y;
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}
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}
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/* ----------- Volumetric Strokes --------------- */
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/* draw a 2D strokes in "volumetric" style */
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static void gp_draw_stroke_volumetric_2d(const bGPDspoint *points,
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int totpoints,
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short thickness,
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short UNUSED(dflag),
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short sflag,
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int offsx,
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int offsy,
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int winx,
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int winy,
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const float diff_mat[4][4],
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const float ink[4])
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{
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GPUVertFormat *format = immVertexFormat();
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uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
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uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
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uint color = GPU_vertformat_attr_add(
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format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
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immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
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GPU_program_point_size(true);
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immBegin(GPU_PRIM_POINTS, totpoints);
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const bGPDspoint *pt = points;
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for (int i = 0; i < totpoints; i++, pt++) {
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/* transform position to 2D */
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float co[2];
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float fpt[3];
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mul_v3_m4v3(fpt, diff_mat, &pt->x);
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gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co);
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gp_set_point_varying_color(pt, ink, color, false);
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immAttr1f(size, pt->pressure * thickness); /* TODO: scale based on view transform */
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immVertex2f(pos, co[0], co[1]);
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}
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immEnd();
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immUnbindProgram();
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GPU_program_point_size(false);
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}
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/* draw a 3D stroke in "volumetric" style */
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static void gp_draw_stroke_volumetric_3d(const bGPDspoint *points,
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int totpoints,
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short thickness,
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const float ink[4])
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{
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GPUVertFormat *format = immVertexFormat();
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uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
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uint size = GPU_vertformat_attr_add(format, "size", GPU_COMP_F32, 1, GPU_FETCH_FLOAT);
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uint color = GPU_vertformat_attr_add(
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format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
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immBindBuiltinProgram(GPU_SHADER_3D_POINT_VARYING_SIZE_VARYING_COLOR);
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GPU_program_point_size(true);
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immBegin(GPU_PRIM_POINTS, totpoints);
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const bGPDspoint *pt = points;
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for (int i = 0; i < totpoints && pt; i++, pt++) {
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gp_set_point_varying_color(pt, ink, color, false);
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/* TODO: scale based on view transform */
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immAttr1f(size, pt->pressure * thickness);
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/* we can adjust size in vertex shader based on view/projection! */
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immVertex3fv(pos, &pt->x);
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}
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immEnd();
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immUnbindProgram();
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GPU_program_point_size(false);
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}
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/* --------------- Stroke Fills ----------------- */
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/* calc bounding box in 2d using flat projection data */
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static void gp_calc_2d_bounding_box(
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const float (*points2d)[2], int totpoints, float minv[2], float maxv[2], bool expand)
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{
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copy_v2_v2(minv, points2d[0]);
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copy_v2_v2(maxv, points2d[0]);
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for (int i = 1; i < totpoints; i++) {
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/* min */
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if (points2d[i][0] < minv[0]) {
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minv[0] = points2d[i][0];
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}
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if (points2d[i][1] < minv[1]) {
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minv[1] = points2d[i][1];
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}
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/* max */
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if (points2d[i][0] > maxv[0]) {
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maxv[0] = points2d[i][0];
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}
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if (points2d[i][1] > maxv[1]) {
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maxv[1] = points2d[i][1];
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}
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}
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/* If not expanded, use a perfect square */
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if (expand == false) {
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if (maxv[0] > maxv[1]) {
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maxv[1] = maxv[0];
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}
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else {
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maxv[0] = maxv[1];
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}
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}
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}
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/* calc texture coordinates using flat projected points */
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static void gp_calc_stroke_text_coordinates(
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const float (*points2d)[2], int totpoints, float minv[2], float maxv[2], float (*r_uv)[2])
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{
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float d[2];
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d[0] = maxv[0] - minv[0];
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d[1] = maxv[1] - minv[1];
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for (int i = 0; i < totpoints; i++) {
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r_uv[i][0] = (points2d[i][0] - minv[0]) / d[0];
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r_uv[i][1] = (points2d[i][1] - minv[1]) / d[1];
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}
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}
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/* Triangulate stroke for high quality fill
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* (this is done only if cache is null or stroke was modified). */
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static void gp_triangulate_stroke_fill(bGPDstroke *gps)
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{
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BLI_assert(gps->totpoints >= 3);
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/* allocate memory for temporary areas */
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gps->tot_triangles = gps->totpoints - 2;
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uint(*tmp_triangles)[3] = MEM_mallocN(sizeof(*tmp_triangles) * gps->tot_triangles,
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"GP Stroke temp triangulation");
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float(*points2d)[2] = MEM_mallocN(sizeof(*points2d) * gps->totpoints,
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"GP Stroke temp 2d points");
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float(*uv)[2] = MEM_mallocN(sizeof(*uv) * gps->totpoints, "GP Stroke temp 2d uv data");
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int direction = 0;
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/* convert to 2d and triangulate */
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BKE_gpencil_stroke_2d_flat(gps->points, gps->totpoints, points2d, &direction);
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BLI_polyfill_calc(points2d, (uint)gps->totpoints, direction, tmp_triangles);
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/* calc texture coordinates automatically */
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float minv[2];
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float maxv[2];
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/* first needs bounding box data */
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gp_calc_2d_bounding_box((const float(*)[2])points2d, gps->totpoints, minv, maxv, false);
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/* calc uv data */
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gp_calc_stroke_text_coordinates((const float(*)[2])points2d, gps->totpoints, minv, maxv, uv);
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/* Number of triangles */
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gps->tot_triangles = gps->totpoints - 2;
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/* save triangulation data in stroke cache */
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if (gps->tot_triangles > 0) {
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if (gps->triangles == NULL) {
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gps->triangles = MEM_callocN(sizeof(*gps->triangles) * gps->tot_triangles,
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"GP Stroke triangulation");
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}
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else {
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gps->triangles = MEM_recallocN(gps->triangles, sizeof(*gps->triangles) * gps->tot_triangles);
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}
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for (int i = 0; i < gps->tot_triangles; i++) {
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bGPDtriangle *stroke_triangle = &gps->triangles[i];
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memcpy(stroke_triangle->verts, tmp_triangles[i], sizeof(uint[3]));
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/* copy texture coordinates */
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copy_v2_v2(stroke_triangle->uv[0], uv[tmp_triangles[i][0]]);
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copy_v2_v2(stroke_triangle->uv[1], uv[tmp_triangles[i][1]]);
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copy_v2_v2(stroke_triangle->uv[2], uv[tmp_triangles[i][2]]);
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}
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}
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else {
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/* No triangles needed - Free anything allocated previously */
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if (gps->triangles) {
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MEM_freeN(gps->triangles);
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}
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gps->triangles = NULL;
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}
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/* disable recalculation flag */
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if (gps->flag & GP_STROKE_RECALC_GEOMETRY) {
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gps->flag &= ~GP_STROKE_RECALC_GEOMETRY;
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}
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/* clear memory */
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MEM_SAFE_FREE(tmp_triangles);
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MEM_SAFE_FREE(points2d);
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MEM_SAFE_FREE(uv);
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}
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/* add a new fill point and texture coordinates to vertex buffer */
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static void gp_add_filldata_tobuffer(const bGPDspoint *pt,
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const float uv[2],
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uint pos,
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uint texcoord,
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short flag,
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int offsx,
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int offsy,
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int winx,
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int winy,
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const float diff_mat[4][4])
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{
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float fpt[3];
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float co[2];
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mul_v3_m4v3(fpt, diff_mat, &pt->x);
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/* if 2d, need conversion */
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if (!(flag & GP_STROKE_3DSPACE)) {
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gp_calc_2d_stroke_fxy(fpt, flag, offsx, offsy, winx, winy, co);
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copy_v2_v2(fpt, co);
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fpt[2] = 0.0f; /* 2d always is z=0.0f */
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}
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immAttr2f(texcoord, uv[0], uv[1]); /* texture coordinates */
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immVertex3fv(pos, fpt); /* position */
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}
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#if 0 /* GPXX disabled, not used in annotations */
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/* assign image texture for filling stroke */
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static int gp_set_filling_texture(Image *image, short flag)
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{
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ImBuf *ibuf;
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uint *bind = &image->bindcode[TEXTARGET_TEXTURE_2D];
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int error = GL_NO_ERROR;
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ImageUser iuser = {NULL};
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void *lock;
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iuser.ok = true;
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ibuf = BKE_image_acquire_ibuf(image, &iuser, &lock);
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if (ibuf == NULL || ibuf->rect == NULL) {
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BKE_image_release_ibuf(image, ibuf, NULL);
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return (int)GL_INVALID_OPERATION;
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}
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GPU_create_gl_tex(
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bind, ibuf->rect, ibuf->rect_float, ibuf->x, ibuf->y, GL_TEXTURE_2D, false, false, image);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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if (flag & GP_STYLE_COLOR_TEX_CLAMP) {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP);
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}
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else {
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_REPEAT);
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glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_REPEAT);
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}
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BKE_image_release_ibuf(image, ibuf, NULL);
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return error;
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}
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#endif
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/* draw fills for shapes */
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static void gp_draw_stroke_fill(bGPdata *gpd,
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bGPDstroke *gps,
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int offsx,
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int offsy,
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int winx,
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int winy,
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const float diff_mat[4][4],
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const float color[4])
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{
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BLI_assert(gps->totpoints >= 3);
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Material *ma = gpd->mat[gps->mat_nr];
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MaterialGPencilStyle *gp_style = (ma) ? ma->gp_style : NULL;
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/* Calculate triangles cache for filling area (must be done only after changes) */
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if ((gps->flag & GP_STROKE_RECALC_GEOMETRY) || (gps->tot_triangles == 0) ||
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(gps->triangles == NULL)) {
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gp_triangulate_stroke_fill(gps);
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}
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BLI_assert(gps->tot_triangles >= 1);
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GPUVertFormat *format = immVertexFormat();
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uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
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uint texcoord = GPU_vertformat_attr_add(format, "texCoord", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
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immBindBuiltinProgram(GPU_SHADER_GPENCIL_FILL);
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immUniformColor4fv(color);
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immUniform4fv("color2", gp_style->mix_rgba);
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immUniform1i("fill_type", gp_style->fill_style);
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immUniform1f("mix_factor", gp_style->mix_factor);
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immUniform1f("gradient_angle", gp_style->gradient_angle);
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immUniform1f("gradient_radius", gp_style->gradient_radius);
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immUniform1f("pattern_gridsize", gp_style->pattern_gridsize);
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immUniform2fv("gradient_scale", gp_style->gradient_scale);
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immUniform2fv("gradient_shift", gp_style->gradient_shift);
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immUniform1f("texture_angle", gp_style->texture_angle);
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immUniform2fv("texture_scale", gp_style->texture_scale);
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immUniform2fv("texture_offset", gp_style->texture_offset);
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immUniform1f("texture_opacity", gp_style->texture_opacity);
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|
immUniform1i("t_mix", (gp_style->flag & GP_STYLE_FILL_TEX_MIX) != 0);
|
|
immUniform1i("t_flip", (gp_style->flag & GP_STYLE_COLOR_FLIP_FILL) != 0);
|
|
#if 0 /* GPXX disabled, not used in annotations */
|
|
/* image texture */
|
|
if ((gp_style->fill_style == GP_STYLE_FILL_STYLE_TEXTURE) ||
|
|
(gp_style->flag & GP_STYLE_COLOR_TEX_MIX)) {
|
|
gp_set_filling_texture(gp_style->ima, gp_style->flag);
|
|
}
|
|
#endif
|
|
/* Draw all triangles for filling the polygon (cache must be calculated before) */
|
|
immBegin(GPU_PRIM_TRIS, gps->tot_triangles * 3);
|
|
/* TODO: use batch instead of immediate mode, to share vertices */
|
|
|
|
const bGPDtriangle *stroke_triangle = gps->triangles;
|
|
for (int i = 0; i < gps->tot_triangles; i++, stroke_triangle++) {
|
|
for (int j = 0; j < 3; j++) {
|
|
gp_add_filldata_tobuffer(&gps->points[stroke_triangle->verts[j]],
|
|
stroke_triangle->uv[j],
|
|
pos,
|
|
texcoord,
|
|
gps->flag,
|
|
offsx,
|
|
offsy,
|
|
winx,
|
|
winy,
|
|
diff_mat);
|
|
}
|
|
}
|
|
|
|
immEnd();
|
|
immUnbindProgram();
|
|
}
|
|
|
|
/* ----- Existing Strokes Drawing (3D and Point) ------ */
|
|
|
|
/* draw a given stroke - just a single dot (only one point) */
|
|
static void gp_draw_stroke_point(const bGPDspoint *points,
|
|
short thickness,
|
|
short UNUSED(dflag),
|
|
short sflag,
|
|
int offsx,
|
|
int offsy,
|
|
int winx,
|
|
int winy,
|
|
const float diff_mat[4][4],
|
|
const float ink[4])
|
|
{
|
|
const bGPDspoint *pt = points;
|
|
|
|
/* get final position using parent matrix */
|
|
float fpt[3];
|
|
mul_v3_m4v3(fpt, diff_mat, &pt->x);
|
|
|
|
GPUVertFormat *format = immVertexFormat();
|
|
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT);
|
|
|
|
if (sflag & GP_STROKE_3DSPACE) {
|
|
immBindBuiltinProgram(GPU_SHADER_3D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
|
|
}
|
|
else {
|
|
immBindBuiltinProgram(GPU_SHADER_2D_POINT_UNIFORM_SIZE_UNIFORM_COLOR_AA);
|
|
|
|
/* get 2D coordinates of point */
|
|
float co[3] = {0.0f};
|
|
gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, co);
|
|
copy_v3_v3(fpt, co);
|
|
}
|
|
|
|
gp_set_point_uniform_color(pt, ink);
|
|
/* set point thickness (since there's only one of these) */
|
|
immUniform1f("size", (float)(thickness + 2) * pt->pressure);
|
|
|
|
immBegin(GPU_PRIM_POINTS, 1);
|
|
immVertex3fv(pos, fpt);
|
|
immEnd();
|
|
|
|
immUnbindProgram();
|
|
}
|
|
|
|
/* draw a given stroke in 3d (i.e. in 3d-space) */
|
|
static void gp_draw_stroke_3d(tGPDdraw *tgpw, short thickness, const float ink[4], bool cyclic)
|
|
{
|
|
bGPDspoint *points = tgpw->gps->points;
|
|
int totpoints = tgpw->gps->totpoints;
|
|
|
|
const float viewport[2] = {(float)tgpw->winx, (float)tgpw->winy};
|
|
float curpressure = points[0].pressure;
|
|
float fpt[3];
|
|
|
|
/* if cyclic needs more vertex */
|
|
int cyclic_add = (cyclic) ? 1 : 0;
|
|
|
|
GPUVertFormat *format = immVertexFormat();
|
|
const struct {
|
|
uint pos, color, thickness;
|
|
} attr_id = {
|
|
.pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 3, GPU_FETCH_FLOAT),
|
|
.color = GPU_vertformat_attr_add(
|
|
format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT),
|
|
.thickness = GPU_vertformat_attr_add(format, "thickness", GPU_COMP_F32, 1, GPU_FETCH_FLOAT),
|
|
};
|
|
|
|
immBindBuiltinProgram(GPU_SHADER_GPENCIL_STROKE);
|
|
immUniform2fv("Viewport", viewport);
|
|
immUniform1f("pixsize", tgpw->rv3d->pixsize);
|
|
float obj_scale = tgpw->ob ?
|
|
(tgpw->ob->scale[0] + tgpw->ob->scale[1] + tgpw->ob->scale[2]) / 3.0f :
|
|
1.0f;
|
|
|
|
immUniform1f("objscale", obj_scale);
|
|
int keep_size = (int)((tgpw->gpd) && (tgpw->gpd->flag & GP_DATA_STROKE_KEEPTHICKNESS));
|
|
immUniform1i("keep_size", keep_size);
|
|
immUniform1f("pixfactor", tgpw->gpd->pixfactor);
|
|
/* xray mode always to 3D space to avoid wrong zdepth calculation (T60051) */
|
|
immUniform1i("xraymode", GP_XRAY_3DSPACE);
|
|
immUniform1i("caps_start", (int)tgpw->gps->caps[0]);
|
|
immUniform1i("caps_end", (int)tgpw->gps->caps[1]);
|
|
immUniform1i("fill_stroke", (int)tgpw->is_fill_stroke);
|
|
|
|
/* draw stroke curve */
|
|
GPU_line_width(max_ff(curpressure * thickness, 1.0f));
|
|
immBeginAtMost(GPU_PRIM_LINE_STRIP_ADJ, totpoints + cyclic_add + 2);
|
|
const bGPDspoint *pt = points;
|
|
|
|
for (int i = 0; i < totpoints; i++, pt++) {
|
|
/* first point for adjacency (not drawn) */
|
|
if (i == 0) {
|
|
gp_set_point_varying_color(points, ink, attr_id.color, (bool)tgpw->is_fill_stroke);
|
|
|
|
if ((cyclic) && (totpoints > 2)) {
|
|
immAttr1f(attr_id.thickness, max_ff((points + totpoints - 1)->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + totpoints - 1)->x);
|
|
}
|
|
else {
|
|
immAttr1f(attr_id.thickness, max_ff((points + 1)->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + 1)->x);
|
|
}
|
|
immVertex3fv(attr_id.pos, fpt);
|
|
}
|
|
/* set point */
|
|
gp_set_point_varying_color(pt, ink, attr_id.color, (bool)tgpw->is_fill_stroke);
|
|
immAttr1f(attr_id.thickness, max_ff(pt->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &pt->x);
|
|
immVertex3fv(attr_id.pos, fpt);
|
|
}
|
|
|
|
if (cyclic && totpoints > 2) {
|
|
/* draw line to first point to complete the cycle */
|
|
immAttr1f(attr_id.thickness, max_ff(points->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &points->x);
|
|
immVertex3fv(attr_id.pos, fpt);
|
|
|
|
/* now add adjacency point (not drawn) */
|
|
immAttr1f(attr_id.thickness, max_ff((points + 1)->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + 1)->x);
|
|
immVertex3fv(attr_id.pos, fpt);
|
|
}
|
|
/* last adjacency point (not drawn) */
|
|
else {
|
|
gp_set_point_varying_color(
|
|
points + totpoints - 2, ink, attr_id.color, (bool)tgpw->is_fill_stroke);
|
|
|
|
immAttr1f(attr_id.thickness, max_ff((points + totpoints - 2)->pressure * thickness, 1.0f));
|
|
mul_v3_m4v3(fpt, tgpw->diff_mat, &(points + totpoints - 2)->x);
|
|
immVertex3fv(attr_id.pos, fpt);
|
|
}
|
|
|
|
immEnd();
|
|
immUnbindProgram();
|
|
}
|
|
|
|
/* ----- Fancy 2D-Stroke Drawing ------ */
|
|
|
|
/* draw a given stroke in 2d */
|
|
static void gp_draw_stroke_2d(const bGPDspoint *points,
|
|
int totpoints,
|
|
short thickness_s,
|
|
short dflag,
|
|
short sflag,
|
|
bool UNUSED(debug),
|
|
int offsx,
|
|
int offsy,
|
|
int winx,
|
|
int winy,
|
|
const float diff_mat[4][4],
|
|
const float ink[4])
|
|
{
|
|
/* otherwise thickness is twice that of the 3D view */
|
|
float thickness = (float)thickness_s * 0.5f;
|
|
|
|
/* strokes in Image Editor need a scale factor, since units there are not pixels! */
|
|
float scalefac = 1.0f;
|
|
if ((dflag & GP_DRAWDATA_IEDITHACK) && (dflag & GP_DRAWDATA_ONLYV2D)) {
|
|
scalefac = 0.001f;
|
|
}
|
|
|
|
/* TODO: fancy++ with the magic of shaders */
|
|
|
|
/* tessellation code - draw stroke as series of connected quads (triangle strips in fact)
|
|
* with connection edges rotated to minimize shrinking artifacts, and rounded endcaps.
|
|
*/
|
|
{
|
|
const bGPDspoint *pt1, *pt2;
|
|
float s0[2], s1[2]; /* segment 'center' points */
|
|
float pm[2]; /* normal from previous segment. */
|
|
int i;
|
|
float fpt[3];
|
|
|
|
GPUVertFormat *format = immVertexFormat();
|
|
const struct {
|
|
uint pos, color;
|
|
} attr_id = {
|
|
.pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT),
|
|
.color = GPU_vertformat_attr_add(
|
|
format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT),
|
|
};
|
|
|
|
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
|
|
immBegin(GPU_PRIM_TRI_STRIP, totpoints * 2 + 4);
|
|
|
|
/* get x and y coordinates from first point */
|
|
mul_v3_m4v3(fpt, diff_mat, &points->x);
|
|
gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s0);
|
|
|
|
for (i = 0, pt1 = points, pt2 = points + 1; i < (totpoints - 1); i++, pt1++, pt2++) {
|
|
float t0[2], t1[2]; /* tessellated coordinates */
|
|
float m1[2], m2[2]; /* gradient and normal */
|
|
float mt[2], sc[2]; /* gradient for thickness, point for end-cap */
|
|
float pthick; /* thickness at segment point */
|
|
|
|
/* Get x and y coordinates from point2
|
|
* (point1 has already been computed in previous iteration). */
|
|
mul_v3_m4v3(fpt, diff_mat, &pt2->x);
|
|
gp_calc_2d_stroke_fxy(fpt, sflag, offsx, offsy, winx, winy, s1);
|
|
|
|
/* calculate gradient and normal - 'angle'=(ny/nx) */
|
|
m1[1] = s1[1] - s0[1];
|
|
m1[0] = s1[0] - s0[0];
|
|
normalize_v2(m1);
|
|
m2[1] = -m1[0];
|
|
m2[0] = m1[1];
|
|
|
|
/* always use pressure from first point here */
|
|
pthick = (pt1->pressure * thickness * scalefac);
|
|
|
|
/* color of point */
|
|
gp_set_point_varying_color(pt1, ink, attr_id.color, false);
|
|
|
|
/* if the first segment, start of segment is segment's normal */
|
|
if (i == 0) {
|
|
/* draw start cap first
|
|
* - make points slightly closer to center (about halfway across)
|
|
*/
|
|
mt[0] = m2[0] * pthick * 0.5f;
|
|
mt[1] = m2[1] * pthick * 0.5f;
|
|
sc[0] = s0[0] - (m1[0] * pthick * 0.75f);
|
|
sc[1] = s0[1] - (m1[1] * pthick * 0.75f);
|
|
|
|
t0[0] = sc[0] - mt[0];
|
|
t0[1] = sc[1] - mt[1];
|
|
t1[0] = sc[0] + mt[0];
|
|
t1[1] = sc[1] + mt[1];
|
|
|
|
/* First two points of cap. */
|
|
immVertex2fv(attr_id.pos, t0);
|
|
immVertex2fv(attr_id.pos, t1);
|
|
|
|
/* calculate points for start of segment */
|
|
mt[0] = m2[0] * pthick;
|
|
mt[1] = m2[1] * pthick;
|
|
|
|
t0[0] = s0[0] - mt[0];
|
|
t0[1] = s0[1] - mt[1];
|
|
t1[0] = s0[0] + mt[0];
|
|
t1[1] = s0[1] + mt[1];
|
|
|
|
/* Last two points of start cap (and first two points of first segment). */
|
|
immVertex2fv(attr_id.pos, t0);
|
|
immVertex2fv(attr_id.pos, t1);
|
|
}
|
|
/* if not the first segment, use bisector of angle between segments */
|
|
else {
|
|
float mb[2]; /* bisector normal */
|
|
float athick, dfac; /* actual thickness, difference between thicknesses */
|
|
|
|
/* calculate gradient of bisector (as average of normals) */
|
|
mb[0] = (pm[0] + m2[0]) / 2;
|
|
mb[1] = (pm[1] + m2[1]) / 2;
|
|
normalize_v2(mb);
|
|
|
|
/* calculate gradient to apply
|
|
* - as basis, use just pthick * bisector gradient
|
|
* - if cross-section not as thick as it should be, add extra padding to fix it
|
|
*/
|
|
mt[0] = mb[0] * pthick;
|
|
mt[1] = mb[1] * pthick;
|
|
athick = len_v2(mt);
|
|
dfac = pthick - (athick * 2);
|
|
|
|
if (((athick * 2.0f) < pthick) && (IS_EQF(athick, pthick) == 0)) {
|
|
mt[0] += (mb[0] * dfac);
|
|
mt[1] += (mb[1] * dfac);
|
|
}
|
|
|
|
/* calculate points for start of segment */
|
|
t0[0] = s0[0] - mt[0];
|
|
t0[1] = s0[1] - mt[1];
|
|
t1[0] = s0[0] + mt[0];
|
|
t1[1] = s0[1] + mt[1];
|
|
|
|
/* Last two points of previous segment, and first two points of current segment. */
|
|
immVertex2fv(attr_id.pos, t0);
|
|
immVertex2fv(attr_id.pos, t1);
|
|
}
|
|
|
|
/* if last segment, also draw end of segment (defined as segment's normal) */
|
|
if (i == totpoints - 2) {
|
|
/* for once, we use second point's pressure (otherwise it won't be drawn) */
|
|
pthick = (pt2->pressure * thickness * scalefac);
|
|
|
|
/* color of point */
|
|
gp_set_point_varying_color(pt2, ink, attr_id.color, false);
|
|
|
|
/* calculate points for end of segment */
|
|
mt[0] = m2[0] * pthick;
|
|
mt[1] = m2[1] * pthick;
|
|
|
|
t0[0] = s1[0] - mt[0];
|
|
t0[1] = s1[1] - mt[1];
|
|
t1[0] = s1[0] + mt[0];
|
|
t1[1] = s1[1] + mt[1];
|
|
|
|
/* Last two points of last segment (and first two points of end cap). */
|
|
immVertex2fv(attr_id.pos, t0);
|
|
immVertex2fv(attr_id.pos, t1);
|
|
|
|
/* draw end cap as last step
|
|
* - make points slightly closer to center (about halfway across)
|
|
*/
|
|
mt[0] = m2[0] * pthick * 0.5f;
|
|
mt[1] = m2[1] * pthick * 0.5f;
|
|
sc[0] = s1[0] + (m1[0] * pthick * 0.75f);
|
|
sc[1] = s1[1] + (m1[1] * pthick * 0.75f);
|
|
|
|
t0[0] = sc[0] - mt[0];
|
|
t0[1] = sc[1] - mt[1];
|
|
t1[0] = sc[0] + mt[0];
|
|
t1[1] = sc[1] + mt[1];
|
|
|
|
/* Last two points of end cap. */
|
|
immVertex2fv(attr_id.pos, t0);
|
|
immVertex2fv(attr_id.pos, t1);
|
|
}
|
|
|
|
/* store computed point2 coordinates as point1 ones of next segment. */
|
|
copy_v2_v2(s0, s1);
|
|
/* store stroke's 'natural' normal for next stroke to use */
|
|
copy_v2_v2(pm, m2);
|
|
}
|
|
|
|
immEnd();
|
|
immUnbindProgram();
|
|
}
|
|
}
|
|
|
|
/* ----- Strokes Drawing ------ */
|
|
|
|
/* Helper for doing all the checks on whether a stroke can be drawn */
|
|
static bool gp_can_draw_stroke(const bGPDstroke *gps, const int dflag)
|
|
{
|
|
/* skip stroke if it isn't in the right display space for this drawing context */
|
|
/* 1) 3D Strokes */
|
|
if ((dflag & GP_DRAWDATA_ONLY3D) && !(gps->flag & GP_STROKE_3DSPACE)) {
|
|
return false;
|
|
}
|
|
if (!(dflag & GP_DRAWDATA_ONLY3D) && (gps->flag & GP_STROKE_3DSPACE)) {
|
|
return false;
|
|
}
|
|
|
|
/* 2) Screen Space 2D Strokes */
|
|
if ((dflag & GP_DRAWDATA_ONLYV2D) && !(gps->flag & GP_STROKE_2DSPACE)) {
|
|
return false;
|
|
}
|
|
if (!(dflag & GP_DRAWDATA_ONLYV2D) && (gps->flag & GP_STROKE_2DSPACE)) {
|
|
return false;
|
|
}
|
|
|
|
/* 3) Image Space (2D) */
|
|
if ((dflag & GP_DRAWDATA_ONLYI2D) && !(gps->flag & GP_STROKE_2DIMAGE)) {
|
|
return false;
|
|
}
|
|
if (!(dflag & GP_DRAWDATA_ONLYI2D) && (gps->flag & GP_STROKE_2DIMAGE)) {
|
|
return false;
|
|
}
|
|
|
|
/* skip stroke if it doesn't have any valid data */
|
|
if ((gps->points == NULL) || (gps->totpoints < 1)) {
|
|
return false;
|
|
}
|
|
|
|
/* stroke can be drawn */
|
|
return true;
|
|
}
|
|
|
|
/* draw a set of strokes */
|
|
static void gp_draw_strokes(tGPDdraw *tgpw)
|
|
{
|
|
float tcolor[4];
|
|
float tfill[4];
|
|
short sthickness;
|
|
float ink[4];
|
|
const bool is_unique = (tgpw->gps != NULL);
|
|
|
|
GPU_program_point_size(true);
|
|
|
|
bGPDstroke *gps_init = (tgpw->gps) ? tgpw->gps : tgpw->t_gpf->strokes.first;
|
|
|
|
for (bGPDstroke *gps = gps_init; gps; gps = gps->next) {
|
|
/* check if stroke can be drawn */
|
|
if (gp_can_draw_stroke(gps, tgpw->dflag) == false) {
|
|
continue;
|
|
}
|
|
/* check if the color is visible */
|
|
Material *ma = tgpw->gpd->mat[gps->mat_nr];
|
|
MaterialGPencilStyle *gp_style = (ma) ? ma->gp_style : NULL;
|
|
|
|
if ((gp_style == NULL) || (gp_style->flag & GP_STYLE_COLOR_HIDE) ||
|
|
/* if onion and ghost flag do not draw*/
|
|
(tgpw->onion && (gp_style->flag & GP_STYLE_COLOR_ONIONSKIN))) {
|
|
continue;
|
|
}
|
|
|
|
/* if disable fill, the colors with fill must be omitted too except fill boundary strokes */
|
|
if ((tgpw->disable_fill == 1) && (gp_style->fill_rgba[3] > 0.0f) &&
|
|
((gps->flag & GP_STROKE_NOFILL) == 0) && (gp_style->flag & GP_STYLE_FILL_SHOW)) {
|
|
continue;
|
|
}
|
|
|
|
/* calculate thickness */
|
|
sthickness = gps->thickness + tgpw->lthick;
|
|
|
|
if (tgpw->is_fill_stroke) {
|
|
sthickness = (short)max_ii(1, sthickness / 2);
|
|
}
|
|
|
|
if (sthickness <= 0) {
|
|
continue;
|
|
}
|
|
|
|
/* check which stroke-drawer to use */
|
|
if (tgpw->dflag & GP_DRAWDATA_ONLY3D) {
|
|
const int no_xray = (tgpw->dflag & GP_DRAWDATA_NO_XRAY);
|
|
int mask_orig = 0;
|
|
|
|
if (no_xray) {
|
|
glGetIntegerv(GL_DEPTH_WRITEMASK, &mask_orig);
|
|
glDepthMask(0);
|
|
GPU_depth_test(true);
|
|
|
|
/* first arg is normally rv3d->dist, but this isn't
|
|
* available here and seems to work quite well without */
|
|
bglPolygonOffset(1.0f, 1.0f);
|
|
}
|
|
|
|
/* 3D Fill */
|
|
// if ((dflag & GP_DRAWDATA_FILL) && (gps->totpoints >= 3)) {
|
|
if ((gps->totpoints >= 3) && (tgpw->disable_fill != 1)) {
|
|
/* set color using material, tint color and opacity */
|
|
interp_v3_v3v3(tfill, gp_style->fill_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
|
|
tfill[3] = gp_style->fill_rgba[3] * tgpw->opacity;
|
|
if ((tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) || (gp_style->fill_style > 0)) {
|
|
const float *color;
|
|
if (!tgpw->onion) {
|
|
color = tfill;
|
|
}
|
|
else {
|
|
if (tgpw->custonion) {
|
|
color = tgpw->tintcolor;
|
|
}
|
|
else {
|
|
ARRAY_SET_ITEMS(tfill, UNPACK3(gp_style->fill_rgba), tgpw->tintcolor[3]);
|
|
color = tfill;
|
|
}
|
|
}
|
|
gp_draw_stroke_fill(tgpw->gpd,
|
|
gps,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
color);
|
|
}
|
|
}
|
|
|
|
/* 3D Stroke */
|
|
/* set color using material tint color and opacity */
|
|
if (!tgpw->onion) {
|
|
interp_v3_v3v3(tcolor, gp_style->stroke_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
|
|
tcolor[3] = gp_style->stroke_rgba[3] * tgpw->opacity;
|
|
copy_v4_v4(ink, tcolor);
|
|
}
|
|
else {
|
|
if (tgpw->custonion) {
|
|
copy_v4_v4(ink, tgpw->tintcolor);
|
|
}
|
|
else {
|
|
ARRAY_SET_ITEMS(tcolor, UNPACK3(gp_style->stroke_rgba), tgpw->opacity);
|
|
copy_v4_v4(ink, tcolor);
|
|
}
|
|
}
|
|
|
|
/* if used for fill, set opacity to 1 */
|
|
if (tgpw->is_fill_stroke) {
|
|
if (ink[3] >= GPENCIL_ALPHA_OPACITY_THRESH) {
|
|
ink[3] = 1.0f;
|
|
}
|
|
}
|
|
|
|
if (gp_style->mode == GP_STYLE_MODE_DOTS) {
|
|
/* volumetric stroke drawing */
|
|
if (tgpw->disable_fill != 1) {
|
|
gp_draw_stroke_volumetric_3d(gps->points, gps->totpoints, sthickness, ink);
|
|
}
|
|
}
|
|
else {
|
|
/* 3D Lines - OpenGL primitives-based */
|
|
if (gps->totpoints == 1) {
|
|
if (tgpw->disable_fill != 1) {
|
|
gp_draw_stroke_point(gps->points,
|
|
sthickness,
|
|
tgpw->dflag,
|
|
gps->flag,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
ink);
|
|
}
|
|
}
|
|
else {
|
|
tgpw->gps = gps;
|
|
gp_draw_stroke_3d(tgpw, sthickness, ink, gps->flag & GP_STROKE_CYCLIC);
|
|
}
|
|
}
|
|
if (no_xray) {
|
|
glDepthMask(mask_orig);
|
|
GPU_depth_test(false);
|
|
|
|
bglPolygonOffset(0.0, 0.0);
|
|
}
|
|
}
|
|
else {
|
|
/* 2D - Fill */
|
|
if (gps->totpoints >= 3) {
|
|
/* set color using material, tint color and opacity */
|
|
interp_v3_v3v3(tfill, gp_style->fill_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
|
|
tfill[3] = gp_style->fill_rgba[3] * tgpw->opacity;
|
|
if ((tfill[3] > GPENCIL_ALPHA_OPACITY_THRESH) || (gp_style->fill_style > 0)) {
|
|
const float *color;
|
|
if (!tgpw->onion) {
|
|
color = tfill;
|
|
}
|
|
else {
|
|
if (tgpw->custonion) {
|
|
color = tgpw->tintcolor;
|
|
}
|
|
else {
|
|
ARRAY_SET_ITEMS(tfill, UNPACK3(gp_style->fill_rgba), tgpw->tintcolor[3]);
|
|
color = tfill;
|
|
}
|
|
}
|
|
gp_draw_stroke_fill(tgpw->gpd,
|
|
gps,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
color);
|
|
}
|
|
}
|
|
|
|
/* 2D Strokes... */
|
|
/* set color using material, tint color and opacity */
|
|
if (!tgpw->onion) {
|
|
interp_v3_v3v3(tcolor, gp_style->stroke_rgba, tgpw->tintcolor, tgpw->tintcolor[3]);
|
|
tcolor[3] = gp_style->stroke_rgba[3] * tgpw->opacity;
|
|
copy_v4_v4(ink, tcolor);
|
|
}
|
|
else {
|
|
if (tgpw->custonion) {
|
|
copy_v4_v4(ink, tgpw->tintcolor);
|
|
}
|
|
else {
|
|
ARRAY_SET_ITEMS(tcolor, UNPACK3(gp_style->stroke_rgba), tgpw->opacity);
|
|
copy_v4_v4(ink, tcolor);
|
|
}
|
|
}
|
|
if (gp_style->mode == GP_STYLE_MODE_DOTS) {
|
|
/* blob/disk-based "volumetric" drawing */
|
|
gp_draw_stroke_volumetric_2d(gps->points,
|
|
gps->totpoints,
|
|
sthickness,
|
|
tgpw->dflag,
|
|
gps->flag,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
ink);
|
|
}
|
|
else {
|
|
/* normal 2D strokes */
|
|
if (gps->totpoints == 1) {
|
|
gp_draw_stroke_point(gps->points,
|
|
sthickness,
|
|
tgpw->dflag,
|
|
gps->flag,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
ink);
|
|
}
|
|
else {
|
|
gp_draw_stroke_2d(gps->points,
|
|
gps->totpoints,
|
|
sthickness,
|
|
tgpw->dflag,
|
|
gps->flag,
|
|
false,
|
|
tgpw->offsx,
|
|
tgpw->offsy,
|
|
tgpw->winx,
|
|
tgpw->winy,
|
|
tgpw->diff_mat,
|
|
ink);
|
|
}
|
|
}
|
|
}
|
|
/* if only one stroke, exit from loop */
|
|
if (is_unique) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
GPU_program_point_size(false);
|
|
}
|
|
|
|
/* ----- General Drawing ------ */
|
|
|
|
/* draw interpolate strokes (used only while operator is running) */
|
|
void ED_gp_draw_interpolation(const bContext *C, tGPDinterpolate *tgpi, const int type)
|
|
{
|
|
tGPDdraw tgpw;
|
|
ARegion *ar = CTX_wm_region(C);
|
|
RegionView3D *rv3d = ar->regiondata;
|
|
tGPDinterpolate_layer *tgpil;
|
|
Object *obact = CTX_data_active_object(C);
|
|
/* Drawing code is expected to run with fully evaluated depsgraph. */
|
|
Depsgraph *depsgraph = CTX_data_expect_evaluated_depsgraph(C);
|
|
|
|
float color[4];
|
|
|
|
UI_GetThemeColor3fv(TH_GP_VERTEX_SELECT, color);
|
|
color[3] = 0.6f;
|
|
int dflag = 0;
|
|
/* if 3d stuff, enable flags */
|
|
if (type == REGION_DRAW_POST_VIEW) {
|
|
dflag |= (GP_DRAWDATA_ONLY3D | GP_DRAWDATA_NOSTATUS);
|
|
}
|
|
|
|
tgpw.rv3d = rv3d;
|
|
tgpw.depsgraph = depsgraph;
|
|
tgpw.ob = obact;
|
|
tgpw.gpd = tgpi->gpd;
|
|
tgpw.offsx = 0;
|
|
tgpw.offsy = 0;
|
|
tgpw.winx = tgpi->ar->winx;
|
|
tgpw.winy = tgpi->ar->winy;
|
|
tgpw.dflag = dflag;
|
|
|
|
/* turn on alpha-blending */
|
|
GPU_blend(true);
|
|
for (tgpil = tgpi->ilayers.first; tgpil; tgpil = tgpil->next) {
|
|
/* calculate parent position */
|
|
ED_gpencil_parent_location(depsgraph, obact, tgpi->gpd, tgpil->gpl, tgpw.diff_mat);
|
|
if (tgpil->interFrame) {
|
|
tgpw.gpl = tgpil->gpl;
|
|
tgpw.gpf = tgpil->interFrame;
|
|
tgpw.t_gpf = tgpil->interFrame;
|
|
tgpw.gps = NULL;
|
|
|
|
tgpw.lthick = tgpil->gpl->line_change;
|
|
tgpw.opacity = 1.0;
|
|
copy_v4_v4(tgpw.tintcolor, color);
|
|
tgpw.onion = true;
|
|
tgpw.custonion = true;
|
|
|
|
gp_draw_strokes(&tgpw);
|
|
}
|
|
}
|
|
GPU_blend(false);
|
|
}
|
|
|
|
/* wrapper to draw strokes for filling operator */
|
|
void ED_gp_draw_fill(tGPDdraw *tgpw)
|
|
{
|
|
gp_draw_strokes(tgpw);
|
|
}
|
|
|
|
/* draw a short status message in the top-right corner */
|
|
static void UNUSED_FUNCTION(gp_draw_status_text)(const bGPdata *gpd, ARegion *ar)
|
|
{
|
|
rcti rect;
|
|
|
|
/* Cannot draw any status text when drawing OpenGL Renders */
|
|
if (G.f & G_FLAG_RENDER_VIEWPORT) {
|
|
return;
|
|
}
|
|
|
|
/* Get bounds of region - Necessary to avoid problems with region overlap */
|
|
ED_region_visible_rect(ar, &rect);
|
|
|
|
/* for now, this should only be used to indicate when we are in stroke editmode */
|
|
if (gpd->flag & GP_DATA_STROKE_EDITMODE) {
|
|
const char *printable = IFACE_("GPencil Stroke Editing");
|
|
float printable_size[2];
|
|
|
|
int font_id = BLF_default();
|
|
|
|
BLF_width_and_height(
|
|
font_id, printable, BLF_DRAW_STR_DUMMY_MAX, &printable_size[0], &printable_size[1]);
|
|
|
|
int xco = (rect.xmax - U.widget_unit) - (int)printable_size[0];
|
|
int yco = (rect.ymax - U.widget_unit);
|
|
|
|
/* text label */
|
|
UI_FontThemeColor(font_id, TH_TEXT_HI);
|
|
#ifdef WITH_INTERNATIONAL
|
|
BLF_draw_default(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
|
|
#else
|
|
BLF_draw_default_ascii(xco, yco, 0.0f, printable, BLF_DRAW_STR_DUMMY_MAX);
|
|
#endif
|
|
|
|
/* grease pencil icon... */
|
|
// XXX: is this too intrusive?
|
|
GPU_blend_set_func_separate(
|
|
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
|
|
GPU_blend(true);
|
|
|
|
xco -= U.widget_unit;
|
|
yco -= (int)printable_size[1] / 2;
|
|
|
|
UI_icon_draw(xco, yco, ICON_GREASEPENCIL);
|
|
|
|
GPU_blend(false);
|
|
}
|
|
}
|