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test2/source/blender/editors/interface/interface_draw.c
Hans Goudey ba1e9ae473 Bevel: Custom Profile and CurveProfile Widget 
Custom profiles in bevel allows the profile curve to be controlled by
manually placed control points. Orientation is regularized along
groups of edges, and the 'pipe case' is updated. This commit includes
many updates to comments and changed variable names as well.

A 'cutoff' vertex mesh method is added to bevel in addition to the
existing grid fill option for replacing vertices.

The UI of the bevel modifier and tool are updated and unified.

Also, a 'CurveProfile' widget is added to BKE for defining the profile
in the interface, which may be useful in other situations.

Many thanks to Howard, my mentor for this GSoC project.

Reviewers: howardt, campbellbarton

Differential Revision: https://developer.blender.org/D5516
2019-11-20 16:25:28 -05:00

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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.
*
* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
* All rights reserved.
*/
/** \file
* \ingroup edinterface
*/
#include <math.h>
#include <string.h>
#include "DNA_color_types.h"
#include "DNA_screen_types.h"
#include "DNA_movieclip_types.h"
#include "DNA_curveprofile_types.h"
#include "BLI_math.h"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "BLI_polyfill_2d.h"
#include "MEM_guardedalloc.h"
#include "BKE_colorband.h"
#include "BKE_colortools.h"
#include "BKE_node.h"
#include "BKE_tracking.h"
#include "BKE_curveprofile.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "IMB_colormanagement.h"
#include "BIF_glutil.h"
#include "BLF_api.h"
#include "GPU_batch.h"
#include "GPU_batch_presets.h"
#include "GPU_immediate.h"
#include "GPU_immediate_util.h"
#include "GPU_matrix.h"
#include "GPU_state.h"
#include "UI_interface.h"
/* own include */
#include "interface_intern.h"
static int roundboxtype = UI_CNR_ALL;
void UI_draw_roundbox_corner_set(int type)
{
/* Not sure the roundbox function is the best place to change this
* if this is undone, it's not that big a deal, only makes curves edges
* square for the */
roundboxtype = type;
}
#if 0 /* unused */
int UI_draw_roundbox_corner_get(void)
{
return roundboxtype;
}
#endif
void UI_draw_roundbox_3ubAlpha(bool filled,
float minx,
float miny,
float maxx,
float maxy,
float rad,
const uchar col[3],
uchar alpha)
{
float colv[4];
colv[0] = ((float)col[0]) / 255;
colv[1] = ((float)col[1]) / 255;
colv[2] = ((float)col[2]) / 255;
colv[3] = ((float)alpha) / 255;
UI_draw_roundbox_4fv(filled, minx, miny, maxx, maxy, rad, colv);
}
void UI_draw_roundbox_3fvAlpha(bool filled,
float minx,
float miny,
float maxx,
float maxy,
float rad,
const float col[3],
float alpha)
{
float colv[4];
colv[0] = col[0];
colv[1] = col[1];
colv[2] = col[2];
colv[3] = alpha;
UI_draw_roundbox_4fv(filled, minx, miny, maxx, maxy, rad, colv);
}
void UI_draw_roundbox_aa(
bool filled, float minx, float miny, float maxx, float maxy, float rad, const float color[4])
{
uiWidgetBaseParameters widget_params = {
.recti.xmin = minx,
.recti.ymin = miny,
.recti.xmax = maxx,
.recti.ymax = maxy,
.radi = rad,
.round_corners[0] = (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 1.0f : 0.0f,
.round_corners[1] = (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 1.0f : 0.0f,
.round_corners[2] = (roundboxtype & UI_CNR_TOP_RIGHT) ? 1.0f : 0.0f,
.round_corners[3] = (roundboxtype & UI_CNR_TOP_LEFT) ? 1.0f : 0.0f,
.color_inner1[0] = color[0],
.color_inner2[0] = color[0],
.color_inner1[1] = color[1],
.color_inner2[1] = color[1],
.color_inner1[2] = color[2],
.color_inner2[2] = color[2],
.color_inner1[3] = color[3],
.color_inner2[3] = color[3],
.alpha_discard = 1.0f,
};
GPU_blend(true);
if (filled) {
/* plain antialiased filled box */
widget_params.color_inner1[3] *= 0.125f;
widget_params.color_inner2[3] *= 0.125f;
/* WATCH: This is assuming the ModelViewProjectionMatrix is area pixel space.
* If it has been scaled, then it's no longer valid. */
GPUBatch *batch = ui_batch_roundbox_get(filled, true);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float *)&widget_params);
GPU_batch_draw(batch);
}
else {
/* plain antialiased unfilled box */
GPU_line_smooth(true);
GPUBatch *batch = ui_batch_roundbox_get(filled, false);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float *)&widget_params);
GPU_batch_draw(batch);
GPU_line_smooth(false);
}
GPU_blend(false);
}
void UI_draw_roundbox_4fv(
bool filled, float minx, float miny, float maxx, float maxy, float rad, const float col[4])
{
#if 0
float vec[7][2] = {
{0.195, 0.02},
{0.383, 0.067},
{0.55, 0.169},
{0.707, 0.293},
{0.831, 0.45},
{0.924, 0.617},
{0.98, 0.805},
};
int a;
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
uint vert_len = 0;
vert_len += (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 9 : 1;
vert_len += (roundboxtype & UI_CNR_TOP_RIGHT) ? 9 : 1;
vert_len += (roundboxtype & UI_CNR_TOP_LEFT) ? 9 : 1;
vert_len += (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 9 : 1;
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4fv(col);
immBegin(filled ? GPU_PRIM_TRI_FAN : GPU_PRIM_LINE_LOOP, vert_len);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
immVertex2f(pos, maxx - rad, miny);
for (a = 0; a < 7; a++) {
immVertex2f(pos, maxx - rad + vec[a][0], miny + vec[a][1]);
}
immVertex2f(pos, maxx, miny + rad);
}
else {
immVertex2f(pos, maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
immVertex2f(pos, maxx, maxy - rad);
for (a = 0; a < 7; a++) {
immVertex2f(pos, maxx - vec[a][1], maxy - rad + vec[a][0]);
}
immVertex2f(pos, maxx - rad, maxy);
}
else {
immVertex2f(pos, maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
immVertex2f(pos, minx + rad, maxy);
for (a = 0; a < 7; a++) {
immVertex2f(pos, minx + rad - vec[a][0], maxy - vec[a][1]);
}
immVertex2f(pos, minx, maxy - rad);
}
else {
immVertex2f(pos, minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
immVertex2f(pos, minx, miny + rad);
for (a = 0; a < 7; a++) {
immVertex2f(pos, minx + vec[a][1], miny + rad - vec[a][0]);
}
immVertex2f(pos, minx + rad, miny);
}
else {
immVertex2f(pos, minx, miny);
}
immEnd();
immUnbindProgram();
#endif
uiWidgetBaseParameters widget_params = {
.recti.xmin = minx,
.recti.ymin = miny,
.recti.xmax = maxx,
.recti.ymax = maxy,
.radi = rad,
.round_corners[0] = (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 1.0f : 0.0f,
.round_corners[1] = (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 1.0f : 0.0f,
.round_corners[2] = (roundboxtype & UI_CNR_TOP_RIGHT) ? 1.0f : 0.0f,
.round_corners[3] = (roundboxtype & UI_CNR_TOP_LEFT) ? 1.0f : 0.0f,
.color_inner1[0] = col[0],
.color_inner2[0] = col[0],
.color_inner1[1] = col[1],
.color_inner2[1] = col[1],
.color_inner1[2] = col[2],
.color_inner2[2] = col[2],
.color_inner1[3] = col[3],
.color_inner2[3] = col[3],
.alpha_discard = 1.0f,
};
GPUBatch *batch = ui_batch_roundbox_get(filled, false);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float *)&widget_params);
GPU_batch_draw(batch);
}
#if 0
static void round_box_shade_col(uint attr,
const float col1[3],
float const col2[3],
const float fac)
{
float col[4] = {
fac * col1[0] + (1.0f - fac) * col2[0],
fac * col1[1] + (1.0f - fac) * col2[1],
fac * col1[2] + (1.0f - fac) * col2[2],
1.0f,
};
immAttr4fv(attr, col);
}
#endif
/* linear horizontal shade within button or in outline */
/* view2d scrollers use it */
void UI_draw_roundbox_shade_x(bool filled,
float minx,
float miny,
float maxx,
float maxy,
float rad,
float shadetop,
float shadedown,
const float col[4])
{
#if 0
float vec[7][2] = {
{0.195, 0.02},
{0.383, 0.067},
{0.55, 0.169},
{0.707, 0.293},
{0.831, 0.45},
{0.924, 0.617},
{0.98, 0.805},
};
const float div = maxy - miny;
const float idiv = 1.0f / div;
float coltop[3], coldown[3];
int vert_count = 0;
int a;
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
/* 'shade' defines strength of shading */
coltop[0] = min_ff(1.0f, col[0] + shadetop);
coltop[1] = min_ff(1.0f, col[1] + shadetop);
coltop[2] = min_ff(1.0f, col[2] + shadetop);
coldown[0] = max_ff(0.0f, col[0] + shadedown);
coldown[1] = max_ff(0.0f, col[1] + shadedown);
coldown[2] = max_ff(0.0f, col[2] + shadedown);
vert_count += (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_TOP_RIGHT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_TOP_LEFT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 9 : 1;
immBegin(filled ? GPU_PRIM_TRI_FAN : GPU_PRIM_LINE_LOOP, vert_count);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
round_box_shade_col(color, coltop, coldown, 0.0);
immVertex2f(pos, maxx - rad, miny);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, coltop, coldown, vec[a][1] * idiv);
immVertex2f(pos, maxx - rad + vec[a][0], miny + vec[a][1]);
}
round_box_shade_col(color, coltop, coldown, rad * idiv);
immVertex2f(pos, maxx, miny + rad);
}
else {
round_box_shade_col(color, coltop, coldown, 0.0);
immVertex2f(pos, maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
round_box_shade_col(color, coltop, coldown, (div - rad) * idiv);
immVertex2f(pos, maxx, maxy - rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, coltop, coldown, (div - rad + vec[a][1]) * idiv);
immVertex2f(pos, maxx - vec[a][1], maxy - rad + vec[a][0]);
}
round_box_shade_col(color, coltop, coldown, 1.0);
immVertex2f(pos, maxx - rad, maxy);
}
else {
round_box_shade_col(color, coltop, coldown, 1.0);
immVertex2f(pos, maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
round_box_shade_col(color, coltop, coldown, 1.0);
immVertex2f(pos, minx + rad, maxy);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, coltop, coldown, (div - vec[a][1]) * idiv);
immVertex2f(pos, minx + rad - vec[a][0], maxy - vec[a][1]);
}
round_box_shade_col(color, coltop, coldown, (div - rad) * idiv);
immVertex2f(pos, minx, maxy - rad);
}
else {
round_box_shade_col(color, coltop, coldown, 1.0);
immVertex2f(pos, minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
round_box_shade_col(color, coltop, coldown, rad * idiv);
immVertex2f(pos, minx, miny + rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, coltop, coldown, (rad - vec[a][1]) * idiv);
immVertex2f(pos, minx + vec[a][1], miny + rad - vec[a][0]);
}
round_box_shade_col(color, coltop, coldown, 0.0);
immVertex2f(pos, minx + rad, miny);
}
else {
round_box_shade_col(color, coltop, coldown, 0.0);
immVertex2f(pos, minx, miny);
}
immEnd();
immUnbindProgram();
#endif
uiWidgetBaseParameters widget_params = {
.recti.xmin = minx,
.recti.ymin = miny,
.recti.xmax = maxx,
.recti.ymax = maxy,
.radi = rad,
.round_corners[0] = (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 1.0f : 0.0f,
.round_corners[1] = (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 1.0f : 0.0f,
.round_corners[2] = (roundboxtype & UI_CNR_TOP_RIGHT) ? 1.0f : 0.0f,
.round_corners[3] = (roundboxtype & UI_CNR_TOP_LEFT) ? 1.0f : 0.0f,
.color_inner1[0] = min_ff(1.0f, col[0] + shadetop),
.color_inner2[0] = max_ff(0.0f, col[0] + shadedown),
.color_inner1[1] = min_ff(1.0f, col[1] + shadetop),
.color_inner2[1] = max_ff(0.0f, col[1] + shadedown),
.color_inner1[2] = min_ff(1.0f, col[2] + shadetop),
.color_inner2[2] = max_ff(0.0f, col[2] + shadedown),
.color_inner1[3] = 1.0f,
.color_inner2[3] = 1.0f,
.alpha_discard = 1.0f,
};
GPUBatch *batch = ui_batch_roundbox_get(filled, false);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float *)&widget_params);
GPU_batch_draw(batch);
}
#if 0 /* unused */
/* linear vertical shade within button or in outline */
/* view2d scrollers use it */
void UI_draw_roundbox_shade_y(bool filled,
float minx,
float miny,
float maxx,
float maxy,
float rad,
float shadeleft,
float shaderight,
const float col[4])
{
float vec[7][2] = {
{0.195, 0.02},
{0.383, 0.067},
{0.55, 0.169},
{0.707, 0.293},
{0.831, 0.45},
{0.924, 0.617},
{0.98, 0.805},
};
const float div = maxx - minx;
const float idiv = 1.0f / div;
float colLeft[3], colRight[3];
int vert_count = 0;
int a;
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint color = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
/* 'shade' defines strength of shading */
colLeft[0] = min_ff(1.0f, col[0] + shadeleft);
colLeft[1] = min_ff(1.0f, col[1] + shadeleft);
colLeft[2] = min_ff(1.0f, col[2] + shadeleft);
colRight[0] = max_ff(0.0f, col[0] + shaderight);
colRight[1] = max_ff(0.0f, col[1] + shaderight);
colRight[2] = max_ff(0.0f, col[2] + shaderight);
vert_count += (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_TOP_RIGHT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_TOP_LEFT) ? 9 : 1;
vert_count += (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 9 : 1;
immBegin(filled ? GPU_PRIM_TRI_FAN : GPU_PRIM_LINE_LOOP, vert_count);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
round_box_shade_col(color, colLeft, colRight, 0.0);
immVertex2f(pos, maxx - rad, miny);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, colLeft, colRight, vec[a][0] * idiv);
immVertex2f(pos, maxx - rad + vec[a][0], miny + vec[a][1]);
}
round_box_shade_col(color, colLeft, colRight, rad * idiv);
immVertex2f(pos, maxx, miny + rad);
}
else {
round_box_shade_col(color, colLeft, colRight, 0.0);
immVertex2f(pos, maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
round_box_shade_col(color, colLeft, colRight, 0.0);
immVertex2f(pos, maxx, maxy - rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, colLeft, colRight, (div - rad - vec[a][0]) * idiv);
immVertex2f(pos, maxx - vec[a][1], maxy - rad + vec[a][0]);
}
round_box_shade_col(color, colLeft, colRight, (div - rad) * idiv);
immVertex2f(pos, maxx - rad, maxy);
}
else {
round_box_shade_col(color, colLeft, colRight, 0.0);
immVertex2f(pos, maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
round_box_shade_col(color, colLeft, colRight, (div - rad) * idiv);
immVertex2f(pos, minx + rad, maxy);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, colLeft, colRight, (div - rad + vec[a][0]) * idiv);
immVertex2f(pos, minx + rad - vec[a][0], maxy - vec[a][1]);
}
round_box_shade_col(color, colLeft, colRight, 1.0);
immVertex2f(pos, minx, maxy - rad);
}
else {
round_box_shade_col(color, colLeft, colRight, 1.0);
immVertex2f(pos, minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
round_box_shade_col(color, colLeft, colRight, 1.0);
immVertex2f(pos, minx, miny + rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(color, colLeft, colRight, (vec[a][0]) * idiv);
immVertex2f(pos, minx + vec[a][1], miny + rad - vec[a][0]);
}
round_box_shade_col(color, colLeft, colRight, 1.0);
immVertex2f(pos, minx + rad, miny);
}
else {
round_box_shade_col(color, colLeft, colRight, 1.0);
immVertex2f(pos, minx, miny);
}
immEnd();
immUnbindProgram();
}
#endif /* unused */
void UI_draw_text_underline(int pos_x, int pos_y, int len, int height, const float color[4])
{
int ofs_y = 4 * U.pixelsize;
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_I32, 2, GPU_FETCH_INT_TO_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4fv(color);
immRecti(pos, pos_x, pos_y - ofs_y, pos_x + len, pos_y - ofs_y + (height * U.pixelsize));
immUnbindProgram();
}
/* ************** SPECIAL BUTTON DRAWING FUNCTIONS ************* */
/* based on UI_draw_roundbox_gl_mode,
* check on making a version which allows us to skip some sides */
void ui_draw_but_TAB_outline(const rcti *rect,
float rad,
uchar highlight[3],
uchar highlight_fade[3])
{
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_U8, 3, GPU_FETCH_INT_TO_FLOAT_UNIT);
/* add a 1px offset, looks nicer */
const int minx = rect->xmin + U.pixelsize, maxx = rect->xmax - U.pixelsize;
const int miny = rect->ymin + U.pixelsize, maxy = rect->ymax - U.pixelsize;
int a;
float vec[4][2] = {
{0.195, 0.02},
{0.55, 0.169},
{0.831, 0.45},
{0.98, 0.805},
};
/* mult */
for (a = 0; a < 4; a++) {
mul_v2_fl(vec[a], rad);
}
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
immBeginAtMost(GPU_PRIM_LINE_STRIP, 25);
immAttr3ubv(col, highlight);
/* start with corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
immVertex2f(pos, minx, maxy - rad);
for (a = 0; a < 4; a++) {
immVertex2f(pos, minx + vec[a][1], maxy - rad + vec[a][0]);
}
immVertex2f(pos, minx + rad, maxy);
}
else {
immVertex2f(pos, minx, maxy);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
immVertex2f(pos, maxx - rad, maxy);
for (a = 0; a < 4; a++) {
immVertex2f(pos, maxx - rad + vec[a][0], maxy - vec[a][1]);
}
immVertex2f(pos, maxx, maxy - rad);
}
else {
immVertex2f(pos, maxx, maxy);
}
immAttr3ubv(col, highlight_fade);
/* corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
immVertex2f(pos, maxx, miny + rad);
for (a = 0; a < 4; a++) {
immVertex2f(pos, maxx - vec[a][1], miny + rad - vec[a][0]);
}
immVertex2f(pos, maxx - rad, miny);
}
else {
immVertex2f(pos, maxx, miny);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
immVertex2f(pos, minx + rad, miny);
for (a = 0; a < 4; a++) {
immVertex2f(pos, minx + rad - vec[a][0], miny + vec[a][1]);
}
immVertex2f(pos, minx, miny + rad);
}
else {
immVertex2f(pos, minx, miny);
}
immAttr3ubv(col, highlight);
/* back to corner left-top */
immVertex2f(pos, minx, (roundboxtype & UI_CNR_TOP_LEFT) ? (maxy - rad) : maxy);
immEnd();
immUnbindProgram();
}
void ui_draw_but_IMAGE(ARegion *UNUSED(ar),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *rect)
{
#ifdef WITH_HEADLESS
(void)rect;
(void)but;
#else
ImBuf *ibuf = (ImBuf *)but->poin;
if (!ibuf) {
return;
}
float facx = 1.0f;
float facy = 1.0f;
int w = BLI_rcti_size_x(rect);
int h = BLI_rcti_size_y(rect);
/* scissor doesn't seem to be doing the right thing...? */
# if 0
/* prevent drawing outside widget area */
int scissor[4];
GPU_scissor_get_i(scissor);
GPU_scissor(rect->xmin, rect->ymin, w, h);
# endif
GPU_blend(true);
if (w != ibuf->x || h != ibuf->y) {
facx = (float)w / (float)ibuf->x;
facy = (float)h / (float)ibuf->y;
}
IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
immDrawPixelsTex(&state,
(float)rect->xmin,
(float)rect->ymin,
ibuf->x,
ibuf->y,
GL_RGBA,
GL_UNSIGNED_BYTE,
GL_NEAREST,
ibuf->rect,
facx,
facy,
NULL);
GPU_blend(false);
# if 0
// restore scissortest
GPU_scissor(scissor[0], scissor[1], scissor[2], scissor[3]);
# endif
#endif
}
/**
* Draw title and text safe areas.
*
* \note This function is to be used with the 2D dashed shader enabled.
*
* \param pos: is a PRIM_FLOAT, 2, GPU_FETCH_FLOAT vertex attribute.
* \param line_origin: is a PRIM_FLOAT, 2, GPU_FETCH_FLOAT vertex attribute.
*
* The next 4 parameters are the offsets for the view, not the zones.
*/
void UI_draw_safe_areas(uint pos,
float x1,
float x2,
float y1,
float y2,
const float title_aspect[2],
const float action_aspect[2])
{
const float size_x_half = (x2 - x1) * 0.5f;
const float size_y_half = (y2 - y1) * 0.5f;
const float *safe_areas[] = {title_aspect, action_aspect};
const int safe_len = ARRAY_SIZE(safe_areas);
for (int i = 0; i < safe_len; i++) {
if (safe_areas[i][0] || safe_areas[i][1]) {
float margin_x = safe_areas[i][0] * size_x_half;
float margin_y = safe_areas[i][1] * size_y_half;
float minx = x1 + margin_x;
float miny = y1 + margin_y;
float maxx = x2 - margin_x;
float maxy = y2 - margin_y;
imm_draw_box_wire_2d(pos, minx, miny, maxx, maxy);
}
}
}
static void draw_scope_end(const rctf *rect, GLint *scissor)
{
/* restore scissortest */
GPU_scissor(scissor[0], scissor[1], scissor[2], scissor[3]);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
/* outline */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
float color[4] = {0.0f, 0.0f, 0.0f, 0.5f};
UI_draw_roundbox_4fv(
false, rect->xmin - 1, rect->ymin, rect->xmax + 1, rect->ymax + 1, 3.0f, color);
}
static void histogram_draw_one(float r,
float g,
float b,
float alpha,
float x,
float y,
float w,
float h,
const float *data,
int res,
const bool is_line,
uint pos_attr)
{
float color[4] = {r, g, b, alpha};
/* that can happen */
if (res == 0) {
return;
}
GPU_line_smooth(true);
glBlendFuncSeparate(GL_SRC_ALPHA, GL_ONE, GL_ONE, GL_ONE);
immUniformColor4fv(color);
if (is_line) {
/* curve outline */
GPU_line_width(1.5);
immBegin(GPU_PRIM_LINE_STRIP, res);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attr, x2, y + (data[i] * h));
}
immEnd();
}
else {
/* under the curve */
immBegin(GPU_PRIM_TRI_STRIP, res * 2);
immVertex2f(pos_attr, x, y);
immVertex2f(pos_attr, x, y + (data[0] * h));
for (int i = 1; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attr, x2, y + (data[i] * h));
immVertex2f(pos_attr, x2, y);
}
immEnd();
/* curve outline */
immUniformColor4f(0.0f, 0.0f, 0.0f, 0.25f);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
immBegin(GPU_PRIM_LINE_STRIP, res);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attr, x2, y + (data[i] * h));
}
immEnd();
}
GPU_line_smooth(false);
}
#define HISTOGRAM_TOT_GRID_LINES 4
void ui_draw_but_HISTOGRAM(ARegion *UNUSED(ar),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
Histogram *hist = (Histogram *)but->poin;
int res = hist->x_resolution;
const bool is_line = (hist->flag & HISTO_FLAG_LINE) != 0;
rctf rect = {
.xmin = (float)recti->xmin + 1,
.xmax = (float)recti->xmax - 1,
.ymin = (float)recti->ymin + 1,
.ymax = (float)recti->ymax - 1,
};
float w = BLI_rctf_size_x(&rect);
float h = BLI_rctf_size_y(&rect) * hist->ymax;
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* need scissor test, histogram can draw outside of boundary */
int scissor[4];
GPU_scissor_get_i(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.08f);
/* draw grid lines here */
for (int i = 1; i <= HISTOGRAM_TOT_GRID_LINES; i++) {
const float fac = (float)i / (float)HISTOGRAM_TOT_GRID_LINES;
/* so we can tell the 1.0 color point */
if (i == HISTOGRAM_TOT_GRID_LINES) {
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.5f);
}
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, rect.xmin, rect.ymin + fac * h);
immVertex2f(pos, rect.xmax, rect.ymin + fac * h);
immVertex2f(pos, rect.xmin + fac * w, rect.ymin);
immVertex2f(pos, rect.xmin + fac * w, rect.ymax);
immEnd();
}
if (hist->mode == HISTO_MODE_LUMA) {
histogram_draw_one(
1.0, 1.0, 1.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_luma, res, is_line, pos);
}
else if (hist->mode == HISTO_MODE_ALPHA) {
histogram_draw_one(
1.0, 1.0, 1.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_a, res, is_line, pos);
}
else {
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_R) {
histogram_draw_one(
1.0, 0.0, 0.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_r, res, is_line, pos);
}
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_G) {
histogram_draw_one(
0.0, 1.0, 0.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_g, res, is_line, pos);
}
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_B) {
histogram_draw_one(
0.0, 0.0, 1.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_b, res, is_line, pos);
}
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
}
#undef HISTOGRAM_TOT_GRID_LINES
static void waveform_draw_one(float *waveform, int nbr, const float col[3])
{
GPUVertFormat format = {0};
uint pos_id = GPU_vertformat_attr_add(&format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
GPUVertBuf *vbo = GPU_vertbuf_create_with_format(&format);
GPU_vertbuf_data_alloc(vbo, nbr);
GPU_vertbuf_attr_fill(vbo, pos_id, waveform);
/* TODO store the GPUBatch inside the scope */
GPUBatch *batch = GPU_batch_create_ex(GPU_PRIM_POINTS, vbo, NULL, GPU_BATCH_OWNS_VBO);
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_UNIFORM_COLOR);
GPU_batch_uniform_4f(batch, "color", col[0], col[1], col[2], 1.0f);
GPU_batch_draw(batch);
GPU_batch_discard(batch);
}
void ui_draw_but_WAVEFORM(ARegion *UNUSED(ar),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
Scopes *scopes = (Scopes *)but->poin;
int scissor[4];
float colors[3][3];
float colorsycc[3][3] = {{1, 0, 1}, {1, 1, 0}, {0, 1, 1}};
/* colors pre multiplied by alpha for speed up */
float colors_alpha[3][3], colorsycc_alpha[3][3];
float min, max;
if (scopes == NULL) {
return;
}
rctf rect = {
.xmin = (float)recti->xmin + 1,
.xmax = (float)recti->xmax - 1,
.ymin = (float)recti->ymin + 1,
.ymax = (float)recti->ymax - 1,
};
if (scopes->wavefrm_yfac < 0.5f) {
scopes->wavefrm_yfac = 0.98f;
}
float w = BLI_rctf_size_x(&rect) - 7;
float h = BLI_rctf_size_y(&rect) * scopes->wavefrm_yfac;
float yofs = rect.ymin + (BLI_rctf_size_y(&rect) - h) * 0.5f;
float w3 = w / 3.0f;
/* log scale for alpha */
float alpha = scopes->wavefrm_alpha * scopes->wavefrm_alpha;
unit_m3(colors);
for (int c = 0; c < 3; c++) {
for (int i = 0; i < 3; i++) {
colors_alpha[c][i] = colors[c][i] * alpha;
colorsycc_alpha[c][i] = colorsycc[c][i] * alpha;
}
}
/* Flush text cache before changing scissors. */
BLF_batch_draw_flush();
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* need scissor test, waveform can draw outside of boundary */
GPU_scissor_get_i(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
/* draw scale numbers first before binding any shader */
for (int i = 0; i < 6; i++) {
char str[4];
BLI_snprintf(str, sizeof(str), "%-3d", i * 20);
str[3] = '\0';
BLF_color4f(BLF_default(), 1.0f, 1.0f, 1.0f, 0.08f);
BLF_draw_default(rect.xmin + 1, yofs - 5 + (i * 0.2f) * h, 0, str, sizeof(str) - 1);
}
/* Flush text cache before drawing things on top. */
BLF_batch_draw_flush();
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.08f);
/* draw grid lines here */
immBegin(GPU_PRIM_LINES, 12);
for (int i = 0; i < 6; i++) {
immVertex2f(pos, rect.xmin + 22, yofs + (i * 0.2f) * h);
immVertex2f(pos, rect.xmax + 1, yofs + (i * 0.2f) * h);
}
immEnd();
/* 3 vertical separation */
if (scopes->wavefrm_mode != SCOPES_WAVEFRM_LUMA) {
immBegin(GPU_PRIM_LINES, 4);
for (int i = 1; i < 3; i++) {
immVertex2f(pos, rect.xmin + i * w3, rect.ymin);
immVertex2f(pos, rect.xmin + i * w3, rect.ymax);
}
immEnd();
}
/* separate min max zone on the right */
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos, rect.xmin + w, rect.ymin);
immVertex2f(pos, rect.xmin + w, rect.ymax);
immEnd();
/* 16-235-240 level in case of ITU-R BT601/709 */
immUniformColor4f(1.0f, 0.4f, 0.0f, 0.2f);
if (ELEM(scopes->wavefrm_mode, SCOPES_WAVEFRM_YCC_601, SCOPES_WAVEFRM_YCC_709)) {
immBegin(GPU_PRIM_LINES, 8);
immVertex2f(pos, rect.xmin + 22, yofs + h * 16.0f / 255.0f);
immVertex2f(pos, rect.xmax + 1, yofs + h * 16.0f / 255.0f);
immVertex2f(pos, rect.xmin + 22, yofs + h * 235.0f / 255.0f);
immVertex2f(pos, rect.xmin + w3, yofs + h * 235.0f / 255.0f);
immVertex2f(pos, rect.xmin + 3 * w3, yofs + h * 235.0f / 255.0f);
immVertex2f(pos, rect.xmax + 1, yofs + h * 235.0f / 255.0f);
immVertex2f(pos, rect.xmin + w3, yofs + h * 240.0f / 255.0f);
immVertex2f(pos, rect.xmax + 1, yofs + h * 240.0f / 255.0f);
immEnd();
}
/* 7.5 IRE black point level for NTSC */
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA) {
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos, rect.xmin, yofs + h * 0.075f);
immVertex2f(pos, rect.xmax + 1, yofs + h * 0.075f);
immEnd();
}
if (scopes->ok && scopes->waveform_1 != NULL) {
glBlendFunc(GL_ONE, GL_ONE);
GPU_point_size(1.0);
/* LUMA (1 channel) */
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA) {
float col[3] = {alpha, alpha, alpha};
GPU_matrix_push();
GPU_matrix_translate_2f(rect.xmin, yofs);
GPU_matrix_scale_2f(w, h);
waveform_draw_one(scopes->waveform_1, scopes->waveform_tot, col);
GPU_matrix_pop();
/* min max */
immUniformColor3f(0.5f, 0.5f, 0.5f);
min = yofs + scopes->minmax[0][0] * h;
max = yofs + scopes->minmax[0][1] * h;
CLAMP(min, rect.ymin, rect.ymax);
CLAMP(max, rect.ymin, rect.ymax);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos, rect.xmax - 3, min);
immVertex2f(pos, rect.xmax - 3, max);
immEnd();
}
/* RGB (3 channel) */
else if (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB) {
GPU_matrix_push();
GPU_matrix_translate_2f(rect.xmin, yofs);
GPU_matrix_scale_2f(w, h);
waveform_draw_one(scopes->waveform_1, scopes->waveform_tot, colors_alpha[0]);
waveform_draw_one(scopes->waveform_2, scopes->waveform_tot, colors_alpha[1]);
waveform_draw_one(scopes->waveform_3, scopes->waveform_tot, colors_alpha[2]);
GPU_matrix_pop();
}
/* PARADE / YCC (3 channels) */
else if (ELEM(scopes->wavefrm_mode,
SCOPES_WAVEFRM_RGB_PARADE,
SCOPES_WAVEFRM_YCC_601,
SCOPES_WAVEFRM_YCC_709,
SCOPES_WAVEFRM_YCC_JPEG)) {
int rgb = (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB_PARADE);
GPU_matrix_push();
GPU_matrix_translate_2f(rect.xmin, yofs);
GPU_matrix_scale_2f(w3, h);
waveform_draw_one(
scopes->waveform_1, scopes->waveform_tot, (rgb) ? colors_alpha[0] : colorsycc_alpha[0]);
GPU_matrix_translate_2f(1.0f, 0.0f);
waveform_draw_one(
scopes->waveform_2, scopes->waveform_tot, (rgb) ? colors_alpha[1] : colorsycc_alpha[1]);
GPU_matrix_translate_2f(1.0f, 0.0f);
waveform_draw_one(
scopes->waveform_3, scopes->waveform_tot, (rgb) ? colors_alpha[2] : colorsycc_alpha[2]);
GPU_matrix_pop();
}
/* min max */
if (scopes->wavefrm_mode != SCOPES_WAVEFRM_LUMA) {
for (int c = 0; c < 3; c++) {
if (ELEM(scopes->wavefrm_mode, SCOPES_WAVEFRM_RGB_PARADE, SCOPES_WAVEFRM_RGB)) {
immUniformColor3f(colors[c][0] * 0.75f, colors[c][1] * 0.75f, colors[c][2] * 0.75f);
}
else {
immUniformColor3f(
colorsycc[c][0] * 0.75f, colorsycc[c][1] * 0.75f, colorsycc[c][2] * 0.75f);
}
min = yofs + scopes->minmax[c][0] * h;
max = yofs + scopes->minmax[c][1] * h;
CLAMP(min, rect.ymin, rect.ymax);
CLAMP(max, rect.ymin, rect.ymax);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos, rect.xmin + w + 2 + c * 2, min);
immVertex2f(pos, rect.xmin + w + 2 + c * 2, max);
immEnd();
}
}
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
GPU_blend(false);
}
static float polar_to_x(float center, float diam, float ampli, float angle)
{
return center + diam * ampli * cosf(angle);
}
static float polar_to_y(float center, float diam, float ampli, float angle)
{
return center + diam * ampli * sinf(angle);
}
static void vectorscope_draw_target(
uint pos, float centerx, float centery, float diam, const float colf[3])
{
float y, u, v;
float tangle = 0.0f, tampli;
float dangle, dampli, dangle2, dampli2;
rgb_to_yuv(colf[0], colf[1], colf[2], &y, &u, &v, BLI_YUV_ITU_BT709);
if (u > 0 && v >= 0) {
tangle = atanf(v / u);
}
else if (u > 0 && v < 0) {
tangle = atanf(v / u) + 2.0f * (float)M_PI;
}
else if (u < 0) {
tangle = atanf(v / u) + (float)M_PI;
}
else if (u == 0 && v > 0.0f) {
tangle = M_PI_2;
}
else if (u == 0 && v < 0.0f) {
tangle = -M_PI_2;
}
tampli = sqrtf(u * u + v * v);
/* small target vary by 2.5 degree and 2.5 IRE unit */
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.12f);
dangle = DEG2RADF(2.5f);
dampli = 2.5f / 200.0f;
immBegin(GPU_PRIM_LINE_LOOP, 4);
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle + dangle),
polar_to_y(centery, diam, tampli + dampli, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle + dangle),
polar_to_y(centery, diam, tampli - dampli, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle - dangle),
polar_to_y(centery, diam, tampli - dampli, tangle - dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle - dangle),
polar_to_y(centery, diam, tampli + dampli, tangle - dangle));
immEnd();
/* big target vary by 10 degree and 20% amplitude */
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.12f);
dangle = DEG2RADF(10.0f);
dampli = 0.2f * tampli;
dangle2 = DEG2RADF(5.0f);
dampli2 = 0.5f * dampli;
immBegin(GPU_PRIM_LINE_STRIP, 3);
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli - dampli2, tangle + dangle),
polar_to_y(centery, diam, tampli + dampli - dampli2, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle + dangle),
polar_to_y(centery, diam, tampli + dampli, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle + dangle - dangle2),
polar_to_y(centery, diam, tampli + dampli, tangle + dangle - dangle2));
immEnd();
immBegin(GPU_PRIM_LINE_STRIP, 3);
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli + dampli2, tangle + dangle),
polar_to_y(centery, diam, tampli - dampli + dampli2, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle + dangle),
polar_to_y(centery, diam, tampli - dampli, tangle + dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle + dangle - dangle2),
polar_to_y(centery, diam, tampli - dampli, tangle + dangle - dangle2));
immEnd();
immBegin(GPU_PRIM_LINE_STRIP, 3);
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli + dampli2, tangle - dangle),
polar_to_y(centery, diam, tampli - dampli + dampli2, tangle - dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle - dangle),
polar_to_y(centery, diam, tampli - dampli, tangle - dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli - dampli, tangle - dangle + dangle2),
polar_to_y(centery, diam, tampli - dampli, tangle - dangle + dangle2));
immEnd();
immBegin(GPU_PRIM_LINE_STRIP, 3);
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli - dampli2, tangle - dangle),
polar_to_y(centery, diam, tampli + dampli - dampli2, tangle - dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle - dangle),
polar_to_y(centery, diam, tampli + dampli, tangle - dangle));
immVertex2f(pos,
polar_to_x(centerx, diam, tampli + dampli, tangle - dangle + dangle2),
polar_to_y(centery, diam, tampli + dampli, tangle - dangle + dangle2));
immEnd();
}
void ui_draw_but_VECTORSCOPE(ARegion *UNUSED(ar),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
const float skin_rad = DEG2RADF(123.0f); /* angle in radians of the skin tone line */
Scopes *scopes = (Scopes *)but->poin;
const float colors[6][3] = {
{0.75, 0.0, 0.0},
{0.75, 0.75, 0.0},
{0.0, 0.75, 0.0},
{0.0, 0.75, 0.75},
{0.0, 0.0, 0.75},
{0.75, 0.0, 0.75},
};
rctf rect = {
.xmin = (float)recti->xmin + 1,
.xmax = (float)recti->xmax - 1,
.ymin = (float)recti->ymin + 1,
.ymax = (float)recti->ymax - 1,
};
float w = BLI_rctf_size_x(&rect);
float h = BLI_rctf_size_y(&rect);
float centerx = rect.xmin + w * 0.5f;
float centery = rect.ymin + h * 0.5f;
float diam = (w < h) ? w : h;
float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* need scissor test, hvectorscope can draw outside of boundary */
int scissor[4];
GPU_scissor_get_i(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.08f);
/* draw grid elements */
/* cross */
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, centerx - (diam * 0.5f) - 5, centery);
immVertex2f(pos, centerx + (diam * 0.5f) + 5, centery);
immVertex2f(pos, centerx, centery - (diam * 0.5f) - 5);
immVertex2f(pos, centerx, centery + (diam * 0.5f) + 5);
immEnd();
/* circles */
for (int j = 0; j < 5; j++) {
const int increment = 15;
immBegin(GPU_PRIM_LINE_LOOP, (int)(360 / increment));
for (int i = 0; i <= 360 - increment; i += increment) {
const float a = DEG2RADF((float)i);
const float r = (j + 1) * 0.1f;
immVertex2f(pos, polar_to_x(centerx, diam, r, a), polar_to_y(centery, diam, r, a));
}
immEnd();
}
/* skin tone line */
immUniformColor4f(1.0f, 0.4f, 0.0f, 0.2f);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(
pos, polar_to_x(centerx, diam, 0.5f, skin_rad), polar_to_y(centery, diam, 0.5f, skin_rad));
immVertex2f(
pos, polar_to_x(centerx, diam, 0.1f, skin_rad), polar_to_y(centery, diam, 0.1f, skin_rad));
immEnd();
/* saturation points */
for (int i = 0; i < 6; i++) {
vectorscope_draw_target(pos, centerx, centery, diam, colors[i]);
}
if (scopes->ok && scopes->vecscope != NULL) {
/* pixel point cloud */
float col[3] = {alpha, alpha, alpha};
glBlendFunc(GL_ONE, GL_ONE);
GPU_point_size(1.0);
GPU_matrix_push();
GPU_matrix_translate_2f(centerx, centery);
GPU_matrix_scale_1f(diam);
waveform_draw_one(scopes->vecscope, scopes->waveform_tot, col);
GPU_matrix_pop();
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
GPU_blend(false);
}
static void ui_draw_colorband_handle_tri_hlight(
uint pos, float x1, float y1, float halfwidth, float height)
{
GPU_line_smooth(true);
immBegin(GPU_PRIM_LINE_STRIP, 3);
immVertex2f(pos, x1 + halfwidth, y1);
immVertex2f(pos, x1, y1 + height);
immVertex2f(pos, x1 - halfwidth, y1);
immEnd();
GPU_line_smooth(false);
}
static void ui_draw_colorband_handle_tri(
uint pos, float x1, float y1, float halfwidth, float height, bool fill)
{
if (fill) {
GPU_polygon_smooth(true);
}
else {
GPU_line_smooth(true);
}
immBegin(fill ? GPU_PRIM_TRIS : GPU_PRIM_LINE_LOOP, 3);
immVertex2f(pos, x1 + halfwidth, y1);
immVertex2f(pos, x1, y1 + height);
immVertex2f(pos, x1 - halfwidth, y1);
immEnd();
if (fill) {
GPU_polygon_smooth(false);
}
else {
GPU_line_smooth(false);
}
}
static void ui_draw_colorband_handle_box(
uint pos, float x1, float y1, float x2, float y2, bool fill)
{
immBegin(fill ? GPU_PRIM_TRI_FAN : GPU_PRIM_LINE_LOOP, 4);
immVertex2f(pos, x1, y1);
immVertex2f(pos, x1, y2);
immVertex2f(pos, x2, y2);
immVertex2f(pos, x2, y1);
immEnd();
}
static void ui_draw_colorband_handle(uint shdr_pos,
const rcti *rect,
float x,
const float rgb[3],
struct ColorManagedDisplay *display,
bool active)
{
const float sizey = BLI_rcti_size_y(rect);
const float min_width = 3.0f;
float colf[3] = {UNPACK3(rgb)};
float half_width = floorf(sizey / 3.5f);
float height = half_width * 1.4f;
float y1 = rect->ymin + (sizey * 0.16f);
float y2 = rect->ymax;
/* align to pixels */
x = floorf(x + 0.5f);
y1 = floorf(y1 + 0.5f);
if (active || half_width < min_width) {
immUnbindProgram();
immBindBuiltinProgram(GPU_SHADER_2D_LINE_DASHED_UNIFORM_COLOR);
float viewport_size[4];
GPU_viewport_size_get_f(viewport_size);
immUniform2f("viewport_size", viewport_size[2] / UI_DPI_FAC, viewport_size[3] / UI_DPI_FAC);
immUniform1i("colors_len", 2); /* "advanced" mode */
immUniformArray4fv(
"colors", (float *)(float[][4]){{0.8f, 0.8f, 0.8f, 1.0f}, {0.0f, 0.0f, 0.0f, 1.0f}}, 2);
immUniform1f("dash_width", active ? 4.0f : 2.0f);
immUniform1f("dash_factor", 0.5f);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(shdr_pos, x, y1);
immVertex2f(shdr_pos, x, y2);
immEnd();
immUnbindProgram();
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* hide handles when zoomed out too far */
if (half_width < min_width) {
return;
}
}
/* shift handle down */
y1 -= half_width;
immUniformColor3ub(0, 0, 0);
ui_draw_colorband_handle_box(
shdr_pos, x - half_width, y1 - 1, x + half_width, y1 + height, false);
/* draw all triangles blended */
GPU_blend(true);
ui_draw_colorband_handle_tri(shdr_pos, x, y1 + height, half_width, half_width, true);
if (active) {
immUniformColor3ub(196, 196, 196);
}
else {
immUniformColor3ub(96, 96, 96);
}
ui_draw_colorband_handle_tri(shdr_pos, x, y1 + height, half_width, half_width, true);
if (active) {
immUniformColor3ub(255, 255, 255);
}
else {
immUniformColor3ub(128, 128, 128);
}
ui_draw_colorband_handle_tri_hlight(
shdr_pos, x, y1 + height - 1, (half_width - 1), (half_width - 1));
immUniformColor3ub(0, 0, 0);
ui_draw_colorband_handle_tri_hlight(shdr_pos, x, y1 + height, half_width, half_width);
GPU_blend(false);
immUniformColor3ub(128, 128, 128);
ui_draw_colorband_handle_box(
shdr_pos, x - (half_width - 1), y1, x + (half_width - 1), y1 + height, true);
if (display) {
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
}
immUniformColor3fv(colf);
ui_draw_colorband_handle_box(
shdr_pos, x - (half_width - 2), y1 + 1, x + (half_width - 2), y1 + height - 2, true);
}
void ui_draw_but_COLORBAND(uiBut *but, const uiWidgetColors *UNUSED(wcol), const rcti *rect)
{
struct ColorManagedDisplay *display = ui_block_cm_display_get(but->block);
uint pos_id, col_id;
ColorBand *coba = (ColorBand *)(but->editcoba ? but->editcoba : but->poin);
if (coba == NULL) {
return;
}
float x1 = rect->xmin;
float sizex = rect->xmax - x1;
float sizey = BLI_rcti_size_y(rect);
float sizey_solid = sizey * 0.25f;
float y1 = rect->ymin;
/* exit early if too narrow */
if (sizex <= 0) {
return;
}
GPUVertFormat *format = immVertexFormat();
pos_id = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_CHECKER);
/* Drawing the checkerboard. */
const float checker_dark = UI_ALPHA_CHECKER_DARK / 255.0f;
const float checker_light = UI_ALPHA_CHECKER_LIGHT / 255.0f;
immUniform4f("color1", checker_dark, checker_dark, checker_dark, 1.0f);
immUniform4f("color2", checker_light, checker_light, checker_light, 1.0f);
immUniform1i("size", 8);
immRectf(pos_id, x1, y1, x1 + sizex, rect->ymax);
immUnbindProgram();
/* New format */
format = immVertexFormat();
pos_id = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
col_id = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
/* layer: color ramp */
GPU_blend(true);
CBData *cbd = coba->data;
float v1[2], v2[2];
float colf[4] = {0, 0, 0, 0}; /* initialize in case the colorband isn't valid */
v1[1] = y1 + sizey_solid;
v2[1] = rect->ymax;
immBegin(GPU_PRIM_TRI_STRIP, (sizex + 1) * 2);
for (int a = 0; a <= sizex; a++) {
float pos = ((float)a) / sizex;
BKE_colorband_evaluate(coba, pos, colf);
if (display) {
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
}
v1[0] = v2[0] = x1 + a;
immAttr4fv(col_id, colf);
immVertex2fv(pos_id, v1);
immVertex2fv(pos_id, v2);
}
immEnd();
/* layer: color ramp without alpha for reference when manipulating ramp properties */
v1[1] = y1;
v2[1] = y1 + sizey_solid;
immBegin(GPU_PRIM_TRI_STRIP, (sizex + 1) * 2);
for (int a = 0; a <= sizex; a++) {
float pos = ((float)a) / sizex;
BKE_colorband_evaluate(coba, pos, colf);
if (display) {
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
}
v1[0] = v2[0] = x1 + a;
immAttr4f(col_id, colf[0], colf[1], colf[2], 1.0f);
immVertex2fv(pos_id, v1);
immVertex2fv(pos_id, v2);
}
immEnd();
immUnbindProgram();
GPU_blend(false);
/* New format */
format = immVertexFormat();
pos_id = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* layer: box outline */
immUniformColor4f(0.0f, 0.0f, 0.0f, 1.0f);
imm_draw_box_wire_2d(pos_id, x1, y1, x1 + sizex, rect->ymax);
/* layer: box outline */
GPU_blend(true);
immUniformColor4f(0.0f, 0.0f, 0.0f, 0.5f);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos_id, x1, y1);
immVertex2f(pos_id, x1 + sizex, y1);
immEnd();
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.25f);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos_id, x1, y1 - 1);
immVertex2f(pos_id, x1 + sizex, y1 - 1);
immEnd();
GPU_blend(false);
/* layer: draw handles */
for (int a = 0; a < coba->tot; a++, cbd++) {
if (a != coba->cur) {
float pos = x1 + cbd->pos * (sizex - 1) + 1;
ui_draw_colorband_handle(pos_id, rect, pos, &cbd->r, display, false);
}
}
/* layer: active handle */
if (coba->tot != 0) {
cbd = &coba->data[coba->cur];
float pos = x1 + cbd->pos * (sizex - 1) + 1;
ui_draw_colorband_handle(pos_id, rect, pos, &cbd->r, display, true);
}
immUnbindProgram();
}
void ui_draw_but_UNITVEC(uiBut *but, const uiWidgetColors *wcol, const rcti *rect)
{
/* sphere color */
float diffuse[3] = {1.0f, 1.0f, 1.0f};
float light[3];
float size;
/* backdrop */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_3ubAlpha(
true, rect->xmin, rect->ymin, rect->xmax, rect->ymax, 5.0f, wcol->inner, 255);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
/* setup lights */
ui_but_v3_get(but, light);
/* transform to button */
GPU_matrix_push();
if (BLI_rcti_size_x(rect) < BLI_rcti_size_y(rect)) {
size = 0.5f * BLI_rcti_size_x(rect);
}
else {
size = 0.5f * BLI_rcti_size_y(rect);
}
GPU_matrix_translate_2f(rect->xmin + 0.5f * BLI_rcti_size_x(rect),
rect->ymin + 0.5f * BLI_rcti_size_y(rect));
GPU_matrix_scale_1f(size);
GPUBatch *sphere = GPU_batch_preset_sphere(2);
GPU_batch_program_set_builtin(sphere, GPU_SHADER_SIMPLE_LIGHTING);
GPU_batch_uniform_4f(sphere, "color", diffuse[0], diffuse[1], diffuse[2], 1.0f);
GPU_batch_uniform_3fv(sphere, "light", light);
GPU_batch_draw(sphere);
/* restore */
glDisable(GL_CULL_FACE);
/* AA circle */
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv(wcol->inner);
GPU_blend(true);
GPU_line_smooth(true);
imm_draw_circle_wire_2d(pos, 0.0f, 0.0f, 1.0f, 32);
GPU_blend(false);
GPU_line_smooth(false);
/* matrix after circle */
GPU_matrix_pop();
immUnbindProgram();
}
static void ui_draw_but_curve_grid(
uint pos, const rcti *rect, float zoomx, float zoomy, float offsx, float offsy, float step)
{
float dx = step * zoomx;
float fx = rect->xmin + zoomx * (-offsx);
if (fx > rect->xmin) {
fx -= dx * (floorf(fx - rect->xmin));
}
float dy = step * zoomy;
float fy = rect->ymin + zoomy * (-offsy);
if (fy > rect->ymin) {
fy -= dy * (floorf(fy - rect->ymin));
}
float line_count = (floorf((rect->xmax - fx) / dx) + 1.0f + floorf((rect->ymax - fy) / dy) +
1.0f);
immBegin(GPU_PRIM_LINES, (int)line_count * 2);
while (fx <= rect->xmax) {
immVertex2f(pos, fx, rect->ymin);
immVertex2f(pos, fx, rect->ymax);
fx += dx;
}
while (fy <= rect->ymax) {
immVertex2f(pos, rect->xmin, fy);
immVertex2f(pos, rect->xmax, fy);
fy += dy;
}
/* Note: Assertion fails with here when the view is moved farther below the center.
* Missing two points from the number given with immBegin. */
immEnd();
}
static void gl_shaded_color_get(const uchar color[3], int shade, uchar r_color[3])
{
r_color[0] = color[0] - shade > 0 ? color[0] - shade : 0;
r_color[1] = color[1] - shade > 0 ? color[1] - shade : 0;
r_color[2] = color[2] - shade > 0 ? color[2] - shade : 0;
}
static void gl_shaded_color_get_fl(const uchar *color, int shade, float r_color[3])
{
uchar color_shaded[3];
gl_shaded_color_get(color, shade, color_shaded);
rgb_uchar_to_float(r_color, color_shaded);
}
static void gl_shaded_color(const uchar *color, int shade)
{
uchar color_shaded[3];
gl_shaded_color_get(color, shade, color_shaded);
immUniformColor3ubv(color_shaded);
}
void ui_draw_but_CURVE(ARegion *ar, uiBut *but, const uiWidgetColors *wcol, const rcti *rect)
{
CurveMapping *cumap;
if (but->editcumap) {
cumap = but->editcumap;
}
else {
cumap = (CurveMapping *)but->poin;
}
float clip_size_x = BLI_rctf_size_x(&cumap->curr);
float clip_size_y = BLI_rctf_size_y(&cumap->curr);
/* zero-sized curve */
if (clip_size_x == 0.0f || clip_size_y == 0.0f) {
return;
}
/* calculate offset and zoom */
float zoomx = (BLI_rcti_size_x(rect) - 2.0f) / clip_size_x;
float zoomy = (BLI_rcti_size_y(rect) - 2.0f) / clip_size_y;
float offsx = cumap->curr.xmin - (1.0f / zoomx);
float offsy = cumap->curr.ymin - (1.0f / zoomy);
/* exit early if too narrow */
if (zoomx == 0.0f) {
return;
}
CurveMap *cuma = &cumap->cm[cumap->cur];
/* need scissor test, curve can draw outside of boundary */
int scissor[4];
GPU_scissor_get_i(scissor);
rcti scissor_new = {
.xmin = rect->xmin,
.ymin = rect->ymin,
.xmax = rect->xmax,
.ymax = rect->ymax,
};
rcti scissor_region = {0, ar->winx, 0, ar->winy};
BLI_rcti_isect(&scissor_new, &scissor_region, &scissor_new);
GPU_scissor(scissor_new.xmin,
scissor_new.ymin,
BLI_rcti_size_x(&scissor_new),
BLI_rcti_size_y(&scissor_new));
/* Do this first to not mess imm context */
if (but->a1 == UI_GRAD_H) {
/* magic trigger for curve backgrounds */
float col[3] = {0.0f, 0.0f, 0.0f}; /* dummy arg */
rcti grid = {
.xmin = rect->xmin + zoomx * (-offsx),
.xmax = grid.xmin + zoomx,
.ymin = rect->ymin + zoomy * (-offsy),
.ymax = grid.ymin + zoomy,
};
ui_draw_gradient(&grid, col, UI_GRAD_H, 1.0f);
}
GPU_line_width(1.0f);
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* backdrop */
float color_backdrop[4] = {0, 0, 0, 1};
if (but->a1 == UI_GRAD_H) {
/* grid, hsv uses different grid */
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
ARRAY_SET_ITEMS(color_backdrop, 0, 0, 0, 48.0 / 255.0);
immUniformColor4fv(color_backdrop);
ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 0.1666666f);
GPU_blend(false);
}
else {
if (cumap->flag & CUMA_DO_CLIP) {
gl_shaded_color_get_fl(wcol->inner, -20, color_backdrop);
immUniformColor3fv(color_backdrop);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUniformColor3ubv(wcol->inner);
immRectf(pos,
rect->xmin + zoomx * (cumap->clipr.xmin - offsx),
rect->ymin + zoomy * (cumap->clipr.ymin - offsy),
rect->xmin + zoomx * (cumap->clipr.xmax - offsx),
rect->ymin + zoomy * (cumap->clipr.ymax - offsy));
}
else {
rgb_uchar_to_float(color_backdrop, wcol->inner);
immUniformColor3fv(color_backdrop);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
/* grid, every 0.25 step */
gl_shaded_color(wcol->inner, -16);
ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 0.25f);
/* grid, every 1.0 step */
gl_shaded_color(wcol->inner, -24);
ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* axes */
gl_shaded_color(wcol->inner, -50);
immBegin(GPU_PRIM_LINES, 4);
immVertex2f(pos, rect->xmin, rect->ymin + zoomy * (-offsy));
immVertex2f(pos, rect->xmax, rect->ymin + zoomy * (-offsy));
immVertex2f(pos, rect->xmin + zoomx * (-offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (-offsx), rect->ymax);
immEnd();
}
/* cfra option */
/* XXX 2.48 */
#if 0
if (cumap->flag & CUMA_DRAW_CFRA) {
immUniformColor3ub(0x60, 0xc0, 0x40);
immBegin(GPU_PRIM_LINES, 2);
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymax);
immEnd();
}
#endif
/* sample option */
if (cumap->flag & CUMA_DRAW_SAMPLE) {
immBegin(GPU_PRIM_LINES, 2); /* will draw one of the following 3 lines */
if (but->a1 == UI_GRAD_H) {
float tsample[3];
float hsv[3];
linearrgb_to_srgb_v3_v3(tsample, cumap->sample);
rgb_to_hsv_v(tsample, hsv);
immUniformColor3ub(240, 240, 240);
immVertex2f(pos, rect->xmin + zoomx * (hsv[0] - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (hsv[0] - offsx), rect->ymax);
}
else if (cumap->cur == 3) {
float lum = IMB_colormanagement_get_luminance(cumap->sample);
immUniformColor3ub(240, 240, 240);
immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymax);
}
else {
if (cumap->cur == 0) {
immUniformColor3ub(240, 100, 100);
}
else if (cumap->cur == 1) {
immUniformColor3ub(100, 240, 100);
}
else {
immUniformColor3ub(100, 100, 240);
}
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymax);
}
immEnd();
}
immUnbindProgram();
if (cuma->table == NULL) {
BKE_curvemapping_changed(cumap, false);
}
CurveMapPoint *cmp = cuma->table;
rctf line_range;
/* First curve point. */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
line_range.xmin = rect->xmin;
line_range.ymin = rect->ymin + zoomy * (cmp[0].y - offsy);
}
else {
line_range.xmin = rect->xmin + zoomx * (cmp[0].x - offsx + cuma->ext_in[0]);
line_range.ymin = rect->ymin + zoomy * (cmp[0].y - offsy + cuma->ext_in[1]);
}
/* Last curve point. */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
line_range.xmax = rect->xmax;
line_range.ymax = rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy);
}
else {
line_range.xmax = rect->xmin + zoomx * (cmp[CM_TABLE].x - offsx - cuma->ext_out[0]);
line_range.ymax = rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy - cuma->ext_out[1]);
}
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
GPU_blend(true);
/* Curve filled. */
immUniformColor3ubvAlpha(wcol->item, 128);
GPU_polygon_smooth(true);
immBegin(GPU_PRIM_TRI_STRIP, (CM_TABLE * 2 + 2) + 4);
immVertex2f(pos, line_range.xmin, rect->ymin);
immVertex2f(pos, line_range.xmin, line_range.ymin);
for (int a = 0; a <= CM_TABLE; a++) {
float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
float fy = rect->ymin + zoomy * (cmp[a].y - offsy);
immVertex2f(pos, fx, rect->ymin);
immVertex2f(pos, fx, fy);
}
immVertex2f(pos, line_range.xmax, rect->ymin);
immVertex2f(pos, line_range.xmax, line_range.ymax);
immEnd();
GPU_polygon_smooth(false);
/* Curve line. */
GPU_line_width(1.0f);
immUniformColor3ubvAlpha(wcol->item, 255);
GPU_line_smooth(true);
immBegin(GPU_PRIM_LINE_STRIP, (CM_TABLE + 1) + 2);
immVertex2f(pos, line_range.xmin, line_range.ymin);
for (int a = 0; a <= CM_TABLE; a++) {
float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
float fy = rect->ymin + zoomy * (cmp[a].y - offsy);
immVertex2f(pos, fx, fy);
}
immVertex2f(pos, line_range.xmax, line_range.ymax);
immEnd();
/* Reset state for fill & line. */
GPU_line_smooth(false);
GPU_blend(false);
immUnbindProgram();
/* The points, use aspect to make them visible on edges. */
format = immVertexFormat();
pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
/* Calculate vertex colors based on text theme. */
float color_vert[4], color_vert_select[4];
UI_GetThemeColor4fv(TH_TEXT_HI, color_vert);
UI_GetThemeColor4fv(TH_TEXT, color_vert_select);
if (len_squared_v3v3(color_vert, color_vert_select) < 0.1f) {
interp_v3_v3v3(color_vert, color_vert_select, color_backdrop, 0.75f);
}
if (len_squared_v3(color_vert) > len_squared_v3(color_vert_select)) {
/* Ensure brightest text color is used for selection. */
swap_v3_v3(color_vert, color_vert_select);
}
cmp = cuma->curve;
GPU_point_size(max_ff(1.0f, min_ff(UI_DPI_FAC / but->block->aspect * 4.0f, 4.0f)));
immBegin(GPU_PRIM_POINTS, cuma->totpoint);
for (int a = 0; a < cuma->totpoint; a++) {
float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
float fy = rect->ymin + zoomy * (cmp[a].y - offsy);
immAttr4fv(col, (cmp[a].flag & CUMA_SELECT) ? color_vert_select : color_vert);
immVertex2f(pos, fx, fy);
}
immEnd();
immUnbindProgram();
/* restore scissortest */
GPU_scissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* outline */
format = immVertexFormat();
pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv(wcol->outline);
imm_draw_box_wire_2d(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUnbindProgram();
}
/** Used to draw a curve profile widget. Somewhat similar to ui_draw_but_CURVE */
void ui_draw_but_CURVEPROFILE(ARegion *ar,
uiBut *but,
const uiWidgetColors *wcol,
const rcti *rect)
{
uint i;
float fx, fy;
CurveProfile *profile;
if (but->editprofile) {
profile = but->editprofile;
}
else {
profile = (CurveProfile *)but->poin;
}
/* Calculate offset and zoom */
float zoomx = (BLI_rcti_size_x(rect) - 2.0f) / BLI_rctf_size_x(&profile->view_rect);
float zoomy = (BLI_rcti_size_y(rect) - 2.0f) / BLI_rctf_size_y(&profile->view_rect);
float offsx = profile->view_rect.xmin - (1.0f / zoomx);
float offsy = profile->view_rect.ymin - (1.0f / zoomy);
/* Exit early if too narrow */
if (zoomx == 0.0f) {
return;
}
/* Test needed because path can draw outside of boundary */
int scissor[4];
GPU_scissor_get_i(scissor);
rcti scissor_new = {
.xmin = rect->xmin,
.ymin = rect->ymin,
.xmax = rect->xmax,
.ymax = rect->ymax,
};
rcti scissor_region = {0, ar->winx, 0, ar->winy};
BLI_rcti_isect(&scissor_new, &scissor_region, &scissor_new);
GPU_scissor(scissor_new.xmin,
scissor_new.ymin,
BLI_rcti_size_x(&scissor_new),
BLI_rcti_size_y(&scissor_new));
GPU_line_width(1.0f);
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* Backdrop */
float color_backdrop[4] = {0, 0, 0, 1};
if (profile->flag & PROF_USE_CLIP) {
gl_shaded_color_get_fl((uchar *)wcol->inner, -20, color_backdrop);
immUniformColor3fv(color_backdrop);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUniformColor3ubv((uchar *)wcol->inner);
immRectf(pos,
rect->xmin + zoomx * (profile->clip_rect.xmin - offsx),
rect->ymin + zoomy * (profile->clip_rect.ymin - offsy),
rect->xmin + zoomx * (profile->clip_rect.xmax - offsx),
rect->ymin + zoomy * (profile->clip_rect.ymax - offsy));
}
else {
rgb_uchar_to_float(color_backdrop, (uchar *)wcol->inner);
immUniformColor3fv(color_backdrop);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
/* 0.25 step grid */
gl_shaded_color((uchar *)wcol->inner, -16);
ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 0.25f);
/* 1.0 step grid */
gl_shaded_color((uchar *)wcol->inner, -24);
ui_draw_but_curve_grid(pos, rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* Draw the path's fill */
if (profile->table == NULL) {
BKE_curveprofile_update(profile, false);
}
CurveProfilePoint *pts = profile->table;
/* Also add the last points on the right and bottom edges to close off the fill polygon */
bool add_left_tri = profile->view_rect.xmin < 0.0f;
bool add_bottom_tri = profile->view_rect.ymin < 0.0f;
uint tot_points = (uint)PROF_N_TABLE(profile->path_len) + 1 + add_left_tri + add_bottom_tri;
uint tot_triangles = tot_points - 2;
/* Create array of the positions of the table's points */
float(*table_coords)[2] = MEM_mallocN(sizeof(*table_coords) * tot_points, "table x coords");
for (i = 0; i < (uint)PROF_N_TABLE(profile->path_len);
i++) { /* Only add the points from the table here */
table_coords[i][0] = pts[i].x;
table_coords[i][1] = pts[i].y;
}
if (add_left_tri && add_bottom_tri) {
/* Add left side, bottom left corner, and bottom side points */
table_coords[tot_points - 3][0] = profile->view_rect.xmin;
table_coords[tot_points - 3][1] = 1.0f;
table_coords[tot_points - 2][0] = profile->view_rect.xmin;
table_coords[tot_points - 2][1] = profile->view_rect.ymin;
table_coords[tot_points - 1][0] = 1.0f;
table_coords[tot_points - 1][1] = profile->view_rect.ymin;
}
else if (add_left_tri) {
/* Add the left side and bottom left corner points */
table_coords[tot_points - 2][0] = profile->view_rect.xmin;
table_coords[tot_points - 2][1] = 1.0f;
table_coords[tot_points - 1][0] = profile->view_rect.xmin;
table_coords[tot_points - 1][1] = 0.0f;
}
else if (add_bottom_tri) {
/* Add the bottom side and bottom left corner points */
table_coords[tot_points - 2][0] = 0.0f;
table_coords[tot_points - 2][1] = profile->view_rect.ymin;
table_coords[tot_points - 1][0] = 1.0f;
table_coords[tot_points - 1][1] = profile->view_rect.ymin;
}
else {
/* Just add the bottom corner point. Side points would be redundant anyway */
table_coords[tot_points - 1][0] = 0.0f;
table_coords[tot_points - 1][1] = 0.0f;
}
/* Calculate the table point indices of the triangles for the profile's fill */
uint(*tri_indices)[3] = MEM_mallocN(sizeof(*tri_indices) * tot_triangles, "return tri indices");
BLI_polyfill_calc(table_coords, tot_points, -1, tri_indices);
/* Draw the triangles for the profile fill */
immUniformColor3ubvAlpha((const uchar *)wcol->item, 128);
GPU_blend(true);
GPU_polygon_smooth(false);
immBegin(GPU_PRIM_TRIS, 3 * tot_triangles);
for (i = 0; i < tot_triangles; i++) {
for (uint j = 0; j < 3; j++) {
uint *tri = tri_indices[i];
fx = rect->xmin + zoomx * (table_coords[tri[j]][0] - offsx);
fy = rect->ymin + zoomy * (table_coords[tri[j]][1] - offsy);
immVertex2f(pos, fx, fy);
}
}
immEnd();
MEM_freeN(tri_indices);
/* Draw the profile's path so the edge stands out a bit */
tot_points -= (add_left_tri + add_left_tri);
GPU_line_width(1.0f);
immUniformColor3ubvAlpha((const uchar *)wcol->item, 255);
GPU_line_smooth(true);
immBegin(GPU_PRIM_LINE_STRIP, tot_points - 1);
for (i = 0; i < tot_points - 1; i++) {
fx = rect->xmin + zoomx * (table_coords[i][0] - offsx);
fy = rect->ymin + zoomy * (table_coords[i][1] - offsy);
immVertex2f(pos, fx, fy);
}
immEnd();
immUnbindProgram();
MEM_freeN(table_coords);
/* New GPU instructions for control points and sampled points. */
format = immVertexFormat();
pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
/* Calculate vertex colors based on text theme. */
float color_vert[4], color_vert_select[4], color_sample[4];
UI_GetThemeColor4fv(TH_TEXT_HI, color_vert);
UI_GetThemeColor4fv(TH_TEXT, color_vert_select);
color_sample[0] = (float)wcol->item[0] / 255.0f;
color_sample[1] = (float)wcol->item[1] / 255.0f;
color_sample[2] = (float)wcol->item[2] / 255.0f;
color_sample[3] = (float)wcol->item[3] / 255.0f;
if (len_squared_v3v3(color_vert, color_vert_select) < 0.1f) {
interp_v3_v3v3(color_vert, color_vert_select, color_backdrop, 0.75f);
}
if (len_squared_v3(color_vert) > len_squared_v3(color_vert_select)) {
/* Ensure brightest text color is used for selection. */
swap_v3_v3(color_vert, color_vert_select);
}
/* Draw the control points. */
pts = profile->path;
tot_points = (uint)profile->path_len;
GPU_line_smooth(false);
GPU_blend(false);
GPU_point_size(max_ff(3.0f, min_ff(UI_DPI_FAC / but->block->aspect * 5.0f, 5.0f)));
immBegin(GPU_PRIM_POINTS, tot_points);
for (i = 0; i < tot_points; i++) {
fx = rect->xmin + zoomx * (pts[i].x - offsx);
fy = rect->ymin + zoomy * (pts[i].y - offsy);
immAttr4fv(col, (pts[i].flag & PROF_SELECT) ? color_vert_select : color_vert);
immVertex2f(pos, fx, fy);
}
immEnd();
/* Draw the sampled points in addition to the control points if they have been created */
pts = profile->segments;
tot_points = (uint)profile->segments_len;
if (tot_points > 0 && pts) {
GPU_point_size(max_ff(2.0f, min_ff(UI_DPI_FAC / but->block->aspect * 3.0f, 3.0f)));
immBegin(GPU_PRIM_POINTS, tot_points);
for (i = 0; i < tot_points; i++) {
fx = rect->xmin + zoomx * (pts[i].x - offsx);
fy = rect->ymin + zoomy * (pts[i].y - offsy);
immAttr4fv(col, color_sample);
immVertex2f(pos, fx, fy);
}
immEnd();
}
immUnbindProgram();
/* restore scissortest */
GPU_scissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* Outline */
format = immVertexFormat();
pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv((const uchar *)wcol->outline);
imm_draw_box_wire_2d(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUnbindProgram();
}
void ui_draw_but_TRACKPREVIEW(ARegion *UNUSED(ar),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
bool ok = false;
MovieClipScopes *scopes = (MovieClipScopes *)but->poin;
rctf rect = {
.xmin = (float)recti->xmin + 1,
.xmax = (float)recti->xmax - 1,
.ymin = (float)recti->ymin + 1,
.ymax = (float)recti->ymax - 1,
};
int width = BLI_rctf_size_x(&rect) + 1;
int height = BLI_rctf_size_y(&rect);
GPU_blend(true);
GPU_blend_set_func_separate(
GPU_SRC_ALPHA, GPU_ONE_MINUS_SRC_ALPHA, GPU_ONE, GPU_ONE_MINUS_SRC_ALPHA);
/* need scissor test, preview image can draw outside of boundary */
int scissor[4];
GPU_scissor_get_i(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
if (scopes->track_disabled) {
float color[4] = {0.7f, 0.3f, 0.3f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
ok = true;
}
else if ((scopes->track_search) &&
((!scopes->track_preview) ||
(scopes->track_preview->x != width || scopes->track_preview->y != height))) {
if (scopes->track_preview) {
IMB_freeImBuf(scopes->track_preview);
}
ImBuf *tmpibuf = BKE_tracking_sample_pattern(scopes->frame_width,
scopes->frame_height,
scopes->track_search,
scopes->track,
&scopes->undist_marker,
true,
scopes->use_track_mask,
width,
height,
scopes->track_pos);
if (tmpibuf) {
if (tmpibuf->rect_float) {
IMB_rect_from_float(tmpibuf);
}
if (tmpibuf->rect) {
scopes->track_preview = tmpibuf;
}
else {
IMB_freeImBuf(tmpibuf);
}
}
}
if (!ok && scopes->track_preview) {
GPU_matrix_push();
/* draw content of pattern area */
GPU_scissor(rect.xmin, rect.ymin, scissor[2], scissor[3]);
if (width > 0 && height > 0) {
ImBuf *drawibuf = scopes->track_preview;
float col_sel[4], col_outline[4];
if (scopes->use_track_mask) {
float color[4] = {0.0f, 0.0f, 0.0f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
}
IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
immDrawPixelsTex(&state,
rect.xmin,
rect.ymin + 1,
drawibuf->x,
drawibuf->y,
GL_RGBA,
GL_UNSIGNED_BYTE,
GL_LINEAR,
drawibuf->rect,
1.0f,
1.0f,
NULL);
/* draw cross for pixel position */
GPU_matrix_translate_2f(rect.xmin + scopes->track_pos[0], rect.ymin + scopes->track_pos[1]);
GPU_scissor(rect.xmin, rect.ymin, BLI_rctf_size_x(&rect), BLI_rctf_size_y(&rect));
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint col = GPU_vertformat_attr_add(format, "color", GPU_COMP_F32, 4, GPU_FETCH_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
UI_GetThemeColor4fv(TH_SEL_MARKER, col_sel);
UI_GetThemeColor4fv(TH_MARKER_OUTLINE, col_outline);
/* Do stipple cross with geometry */
immBegin(GPU_PRIM_LINES, 7 * 2 * 2);
float pos_sel[8] = {-10.0f, -7.0f, -4.0f, -1.0f, 2.0f, 5.0f, 8.0f, 11.0f};
for (int axe = 0; axe < 2; axe++) {
for (int i = 0; i < 7; i++) {
float x1 = pos_sel[i] * (1 - axe);
float y1 = pos_sel[i] * axe;
float x2 = pos_sel[i + 1] * (1 - axe);
float y2 = pos_sel[i + 1] * axe;
if (i % 2 == 1) {
immAttr4fv(col, col_sel);
}
else {
immAttr4fv(col, col_outline);
}
immVertex2f(pos, x1, y1);
immVertex2f(pos, x2, y2);
}
}
immEnd();
immUnbindProgram();
}
GPU_matrix_pop();
ok = true;
}
if (!ok) {
float color[4] = {0.0f, 0.0f, 0.0f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_4fv(
true, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
}
/* outline */
draw_scope_end(&rect, scissor);
GPU_blend(false);
}
/* ****************************************************** */
/* TODO: high quality UI drop shadows using GLSL shader and single draw call
* would replace / modify the following 3 functions - merwin
*/
static void ui_shadowbox(uint pos,
uint color,
float minx,
float miny,
float maxx,
float maxy,
float shadsize,
uchar alpha)
{
/**
* <pre>
* v1-_
* | -_v2
* | |
* | |
* | |
* v7_______v3____v4
* \ | /
* \ | _v5
* v8______v6_-
* </pre>
*/
const float v1[2] = {maxx, maxy - 0.3f * shadsize};
const float v2[2] = {maxx + shadsize, maxy - 0.75f * shadsize};
const float v3[2] = {maxx, miny};
const float v4[2] = {maxx + shadsize, miny};
const float v5[2] = {maxx + 0.7f * shadsize, miny - 0.7f * shadsize};
const float v6[2] = {maxx, miny - shadsize};
const float v7[2] = {minx + 0.3f * shadsize, miny};
const float v8[2] = {minx + 0.5f * shadsize, miny - shadsize};
/* right quad */
immAttr4ub(color, 0, 0, 0, alpha);
immVertex2fv(pos, v3);
immVertex2fv(pos, v1);
immAttr4ub(color, 0, 0, 0, 0);
immVertex2fv(pos, v2);
immVertex2fv(pos, v2);
immVertex2fv(pos, v4);
immAttr4ub(color, 0, 0, 0, alpha);
immVertex2fv(pos, v3);
/* corner shape */
/* immAttr4ub(color, 0, 0, 0, alpha); */ /* Not needed, done above in previous tri */
immVertex2fv(pos, v3);
immAttr4ub(color, 0, 0, 0, 0);
immVertex2fv(pos, v4);
immVertex2fv(pos, v5);
immVertex2fv(pos, v5);
immVertex2fv(pos, v6);
immAttr4ub(color, 0, 0, 0, alpha);
immVertex2fv(pos, v3);
/* bottom quad */
/* immAttr4ub(color, 0, 0, 0, alpha); */ /* Not needed, done above in previous tri */
immVertex2fv(pos, v3);
immAttr4ub(color, 0, 0, 0, 0);
immVertex2fv(pos, v6);
immVertex2fv(pos, v8);
immVertex2fv(pos, v8);
immAttr4ub(color, 0, 0, 0, alpha);
immVertex2fv(pos, v7);
immVertex2fv(pos, v3);
}
void UI_draw_box_shadow(uchar alpha, float minx, float miny, float maxx, float maxy)
{
GPU_blend(true);
GPUVertFormat *format = immVertexFormat();
uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
uint color = GPU_vertformat_attr_add(
format, "color", GPU_COMP_U8, 4, GPU_FETCH_INT_TO_FLOAT_UNIT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
immBegin(GPU_PRIM_TRIS, 54);
/* accumulated outline boxes to make shade not linear, is more pleasant */
ui_shadowbox(pos, color, minx, miny, maxx, maxy, 11.0, (20 * alpha) >> 8);
ui_shadowbox(pos, color, minx, miny, maxx, maxy, 7.0, (40 * alpha) >> 8);
ui_shadowbox(pos, color, minx, miny, maxx, maxy, 5.0, (80 * alpha) >> 8);
immEnd();
immUnbindProgram();
GPU_blend(false);
}
void ui_draw_dropshadow(
const rctf *rct, float radius, float aspect, float alpha, int UNUSED(select))
{
float rad;
if (radius > (BLI_rctf_size_y(rct) - 10.0f) * 0.5f) {
rad = (BLI_rctf_size_y(rct) - 10.0f) * 0.5f;
}
else {
rad = radius;
}
int a, i = 12;
#if 0
if (select) {
a = i * aspect; /* same as below */
}
else
#endif
{
a = i * aspect;
}
GPU_blend(true);
const float dalpha = alpha * 2.0f / 255.0f;
float calpha = dalpha;
float visibility = 1.0f;
for (; i--;) {
/* alpha ranges from 2 to 20 or so */
#if 0 /* Old Method (pre 2.8) */
float color[4] = {0.0f, 0.0f, 0.0f, calpha};
UI_draw_roundbox_4fv(
true, rct->xmin - a, rct->ymin - a, rct->xmax + a, rct->ymax - 10.0f + a, rad + a, color);
#endif
/* Compute final visibility to match old method result. */
/* TODO we could just find a better fit function inside the shader instead of this. */
visibility = visibility * (1.0f - calpha);
calpha += dalpha;
}
uiWidgetBaseParameters widget_params = {
.recti.xmin = rct->xmin,
.recti.ymin = rct->ymin,
.recti.xmax = rct->xmax,
.recti.ymax = rct->ymax - 10.0f,
.rect.xmin = rct->xmin - a,
.rect.ymin = rct->ymin - a,
.rect.xmax = rct->xmax + a,
.rect.ymax = rct->ymax - 10.0f + a,
.radi = rad,
.rad = rad + a,
.round_corners[0] = (roundboxtype & UI_CNR_BOTTOM_LEFT) ? 1.0f : 0.0f,
.round_corners[1] = (roundboxtype & UI_CNR_BOTTOM_RIGHT) ? 1.0f : 0.0f,
.round_corners[2] = (roundboxtype & UI_CNR_TOP_RIGHT) ? 1.0f : 0.0f,
.round_corners[3] = (roundboxtype & UI_CNR_TOP_LEFT) ? 1.0f : 0.0f,
.alpha_discard = 1.0f,
};
GPUBatch *batch = ui_batch_roundbox_shadow_get();
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_SHADOW);
GPU_batch_uniform_4fv_array(batch, "parameters", 4, (float *)&widget_params);
GPU_batch_uniform_1f(batch, "alpha", 1.0f - visibility);
GPU_batch_draw(batch);
/* outline emphasis */
GPU_line_smooth(true);
float color[4] = {0.0f, 0.0f, 0.0f, 0.4f};
UI_draw_roundbox_4fv(false,
rct->xmin - 0.5f,
rct->ymin - 0.5f,
rct->xmax + 0.5f,
rct->ymax + 0.5f,
radius + 0.5f,
color);
GPU_line_smooth(false);
GPU_blend(false);
}
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