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blender-archive/source/blender/editors/interface/interface_draw.c
Julian Eisel 47881791be UI Code Quality: Store curve-button gradient type in derived struct 
We want to move away from using `uiBut.a1`/`a2`, which is a hard to
reason about design.

Part of T74432.

Also correct comment.
2020-09-04 21:26:30 +02:00

2767 lines
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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_curve_types.h"
#include "DNA_curveprofile_types.h"
#include "DNA_movieclip_types.h"
#include "DNA_screen_types.h"
#include "BLI_math.h"
#include "BLI_polyfill_2d.h"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "MEM_guardedalloc.h"
#include "BKE_colorband.h"
#include "BKE_colortools.h"
#include "BKE_curveprofile.h"
#include "BKE_node.h"
#include "BKE_tracking.h"
#include "IMB_colormanagement.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.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_3ub_alpha(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_3fv_alpha(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 + U.pixelsize,
.recti.ymin = miny + U.pixelsize,
.recti.xmax = maxx - U.pixelsize,
.recti.ymax = maxy - U.pixelsize,
.rect.xmin = minx,
.rect.ymin = miny,
.rect.xmax = maxx,
.rect.ymax = maxy,
.radi = rad,
.rad = 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] = filled ? color[0] : 0.0f,
.color_inner1[1] = filled ? color[1] : 0.0f,
.color_inner1[2] = filled ? color[2] : 0.0f,
.color_inner1[3] = filled ? color[3] : 0.0f,
.color_inner2[0] = filled ? color[0] : 0.0f,
.color_inner2[1] = filled ? color[1] : 0.0f,
.color_inner2[2] = filled ? color[2] : 0.0f,
.color_inner2[3] = filled ? color[3] : 0.0f,
.color_outline[0] = color[0],
.color_outline[1] = color[1],
.color_outline[2] = color[2],
.color_outline[3] = color[3],
.alpha_discard = 1.0f,
};
/* XXX this is to emulate previous behavior of semitransparent fills but that's was a side effect
* of the previous AA method. Better fix the callers. */
if (filled) {
widget_params.color_inner1[3] *= 0.65f;
widget_params.color_inner2[3] *= 0.65f;
widget_params.color_outline[3] *= 0.65f;
}
/* 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_widget_get();
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float(*)[4]) & widget_params);
GPU_blend(GPU_BLEND_ALPHA);
GPU_batch_draw(batch);
GPU_blend(GPU_BLEND_NONE);
}
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 + U.pixelsize,
.recti.ymin = miny + U.pixelsize,
.recti.xmax = maxx - U.pixelsize,
.recti.ymax = maxy - U.pixelsize,
.rect.xmin = minx,
.rect.ymin = miny,
.rect.xmax = maxx,
.rect.ymax = maxy,
.radi = rad,
.rad = 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] = filled ? col[0] : 0.0f,
.color_inner1[1] = filled ? col[1] : 0.0f,
.color_inner1[2] = filled ? col[2] : 0.0f,
.color_inner1[3] = filled ? col[3] : 0.0f,
.color_inner2[0] = filled ? col[0] : 0.0f,
.color_inner2[1] = filled ? col[1] : 0.0f,
.color_inner2[2] = filled ? col[2] : 0.0f,
.color_inner2[3] = filled ? col[3] : 0.0f,
.color_outline[0] = col[0],
.color_outline[1] = col[1],
.color_outline[2] = col[2],
.color_outline[3] = col[3],
.alpha_discard = 1.0f,
};
/* Exactly the same as UI_draw_roundbox_aa but does not do the legacy transparency. */
/* 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_widget_get();
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float(*)[4]) & widget_params);
GPU_blend(GPU_BLEND_ALPHA);
GPU_batch_draw(batch);
GPU_blend(GPU_BLEND_NONE);
}
#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 + U.pixelsize,
.recti.ymin = miny + U.pixelsize,
.recti.xmax = maxx - U.pixelsize,
.recti.ymax = maxy - U.pixelsize,
.rect.xmin = minx,
.rect.ymin = miny,
.rect.xmax = maxx,
.rect.ymax = maxy,
.radi = rad,
.rad = 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] = !filled ? 0.0f : min_ff(1.0f, col[0] + shadetop),
.color_inner1[1] = !filled ? 0.0f : min_ff(1.0f, col[1] + shadetop),
.color_inner1[2] = !filled ? 0.0f : min_ff(1.0f, col[2] + shadetop),
.color_inner1[3] = !filled ? 0.0f : 1.0f,
.color_inner2[0] = !filled ? 0.0f : max_ff(0.0f, col[0] + shadedown),
.color_inner2[1] = !filled ? 0.0f : max_ff(0.0f, col[1] + shadedown),
.color_inner2[2] = !filled ? 0.0f : max_ff(0.0f, col[2] + shadedown),
.color_inner2[3] = !filled ? 0.0f : 1.0f,
/* TODO: non-filled box don't have gradients. Just use middle color. */
.color_outline[0] = clamp_f(col[0] + shadetop + shadedown, 0.0f, 1.0f),
.color_outline[1] = clamp_f(col[1] + shadetop + shadedown, 0.0f, 1.0f),
.color_outline[2] = clamp_f(col[2] + shadetop + shadedown, 0.0f, 1.0f),
.color_outline[3] = clamp_f(col[3] + shadetop + shadedown, 0.0f, 1.0f),
.shade_dir = 1.0f,
.alpha_discard = 1.0f,
};
GPU_blend(GPU_BLEND_ALPHA);
GPUBatch *batch = ui_batch_roundbox_widget_get();
GPU_batch_program_set_builtin(batch, GPU_SHADER_2D_WIDGET_BASE);
GPU_batch_uniform_4fv_array(batch, "parameters", 11, (float(*)[4]) & widget_params);
GPU_batch_draw(batch);
GPU_blend(GPU_BLEND_NONE);
}
#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])
{
const int ofs_y = 4 * U.pixelsize;
GPUVertFormat *format = immVertexFormat();
const 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();
const uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
const 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(region),
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;
}
const int w = BLI_rcti_size_x(rect);
const 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(scissor);
GPU_scissor(rect->xmin, rect->ymin, w, h);
# endif
/* Combine with premultiplied alpha. */
GPU_blend(GPU_BLEND_ALPHA_PREMULT);
if (w != ibuf->x || h != ibuf->y) {
/* We scale the bitmap, rather than have OGL do a worse job. */
IMB_scaleImBuf(ibuf, w, h);
}
float col[4] = {1.0f, 1.0f, 1.0f, 1.0f};
if (but->col[3] != 0) {
/* Optionally use uiBut's col to recolor the image. */
rgba_uchar_to_float(col, but->col);
}
IMMDrawPixelsTexState state = immDrawPixelsTexSetup(GPU_SHADER_2D_IMAGE_COLOR);
immDrawPixelsTex(&state,
(float)rect->xmin,
(float)rect->ymin,
ibuf->x,
ibuf->y,
GPU_RGBA8,
false,
ibuf->rect,
1.0f,
1.0f,
col);
GPU_blend(GPU_BLEND_NONE);
# 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 x1, x2, y1, y2: 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]) {
const float margin_x = safe_areas[i][0] * size_x_half;
const float margin_y = safe_areas[i][1] * size_y_half;
const float minx = x1 + margin_x;
const float miny = y1 + margin_y;
const float maxx = x2 - margin_x;
const float maxy = y2 - margin_y;
imm_draw_box_wire_2d(pos, minx, miny, maxx, maxy);
}
}
}
static void draw_scope_end(const rctf *rect)
{
GPU_blend(GPU_BLEND_ALPHA);
/* outline */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
const 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)
{
const float color[4] = {r, g, b, alpha};
/* that can happen */
if (res == 0) {
return;
}
GPU_line_smooth(true);
GPU_blend(GPU_BLEND_ADDITIVE);
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++) {
const 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++) {
const 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(GPU_BLEND_ALPHA);
immBegin(GPU_PRIM_LINE_STRIP, res);
for (int i = 0; i < res; i++) {
const 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(region),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
Histogram *hist = (Histogram *)but->poin;
const 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,
};
const float w = BLI_rctf_size_x(&rect);
const float h = BLI_rctf_size_y(&rect) * hist->ymax;
GPU_blend(GPU_BLEND_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(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
GPUVertFormat *format = immVertexFormat();
const 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();
/* Restore scissor test. */
GPU_scissor(UNPACK4(scissor));
/* outline */
draw_scope_end(&rect);
}
#undef HISTOGRAM_TOT_GRID_LINES
static void waveform_draw_one(float *waveform, int nbr, const float col[3])
{
GPUVertFormat format = {0};
const 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(region),
uiBut *but,
const uiWidgetColors *UNUSED(wcol),
const rcti *recti)
{
Scopes *scopes = (Scopes *)but->poin;
int scissor[4];
float colors[3][3];
const 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;
}
const float w = BLI_rctf_size_x(&rect) - 7;
const float h = BLI_rctf_size_y(&rect) * scopes->wavefrm_yfac;
const float yofs = rect.ymin + (BLI_rctf_size_y(&rect) - h) * 0.5f;
const float w3 = w / 3.0f;
/* log scale for alpha */
const 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(GPU_BLEND_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(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(GPU_BLEND_ALPHA);
GPUVertFormat *format = immVertexFormat();
const 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) {
GPU_blend(GPU_BLEND_ADDITIVE);
GPU_point_size(1.0);
/* LUMA (1 channel) */
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA) {
const 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)) {
const 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();
/* Restore scissor test. */
GPU_scissor(UNPACK4(scissor));
/* outline */
draw_scope_end(&rect);
GPU_blend(GPU_BLEND_NONE);
}
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(region),
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,
};
const float w = BLI_rctf_size_x(&rect);
const float h = BLI_rctf_size_y(&rect);
const float centerx = rect.xmin + w * 0.5f;
const float centery = rect.ymin + h * 0.5f;
const float diam = (w < h) ? w : h;
const float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
GPU_blend(GPU_BLEND_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(scissor);
GPU_scissor((rect.xmin - 1),
(rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
GPUVertFormat *format = immVertexFormat();
const 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 */
const float col[3] = {alpha, alpha, alpha};
GPU_blend(GPU_BLEND_ADDITIVE);
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();
/* Restore scissor test. */
GPU_scissor(UNPACK4(scissor));
/* outline */
draw_scope_end(&rect);
GPU_blend(GPU_BLEND_NONE);
}
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)};
const float half_width = floorf(sizey / 3.5f);
const float height = half_width * 1.4f;
float y1 = rect->ymin + (sizey * 0.16f);
const 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(GPU_BLEND_ALPHA);
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(GPU_BLEND_NONE);
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;
uiButColorBand *but_coba = (uiButColorBand *)but;
ColorBand *coba = (but_coba->edit_coba == NULL) ? (ColorBand *)but->poin : but_coba->edit_coba;
if (coba == NULL) {
return;
}
const float x1 = rect->xmin;
const float sizex = rect->xmax - x1;
const float sizey = BLI_rcti_size_y(rect);
const float sizey_solid = sizey * 0.25f;
const 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(GPU_BLEND_ALPHA);
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++) {
const 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++) {
const 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(GPU_BLEND_NONE);
/* 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(GPU_BLEND_ALPHA);
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(GPU_BLEND_NONE);
/* layer: draw handles */
for (int a = 0; a < coba->tot; a++, cbd++) {
if (a != coba->cur) {
const 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];
const 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 */
const float diffuse[3] = {1.0f, 1.0f, 1.0f};
float light[3];
const float size = 0.5f * min_ff(BLI_rcti_size_x(rect), BLI_rcti_size_y(rect));
/* backdrop */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_3ub_alpha(
true, rect->xmin, rect->ymin, rect->xmax, rect->ymax, 5.0f, wcol->inner, 255);
GPU_face_culling(GPU_CULL_BACK);
/* setup lights */
ui_but_v3_get(but, light);
/* transform to button */
GPU_matrix_push();
const bool use_project_matrix = (size >= -GPU_MATRIX_ORTHO_CLIP_NEAR_DEFAULT);
if (use_project_matrix) {
GPU_matrix_push_projection();
GPU_matrix_ortho_set_z(-size, size);
}
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 */
GPU_face_culling(GPU_CULL_NONE);
/* AA circle */
GPUVertFormat *format = immVertexFormat();
const 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(GPU_BLEND_ALPHA);
GPU_line_smooth(true);
imm_draw_circle_wire_2d(pos, 0.0f, 0.0f, 1.0f, 32);
GPU_blend(GPU_BLEND_NONE);
GPU_line_smooth(false);
if (use_project_matrix) {
GPU_matrix_pop_projection();
}
/* matrix after circle */
GPU_matrix_pop();
immUnbindProgram();
}
static void ui_draw_but_curve_grid(const uint pos,
const rcti *rect,
const float zoom_x,
const float zoom_y,
const float offset_x,
const float offset_y,
const float step)
{
const float start_x = (ceilf(offset_x / step) * step - offset_x) * zoom_x + rect->xmin;
const float start_y = (ceilf(offset_y / step) * step - offset_y) * zoom_y + rect->ymin;
const int line_count_x = ceilf((rect->xmax - start_x) / (step * zoom_x));
const int line_count_y = ceilf((rect->ymax - start_y) / (step * zoom_y));
if (line_count_x + line_count_y == 0) {
return;
}
immBegin(GPU_PRIM_LINES, (line_count_x + line_count_y) * 2);
for (int i = 0; i < line_count_x; i++) {
const float x = start_x + i * step * zoom_x;
immVertex2f(pos, x, rect->ymin);
immVertex2f(pos, x, rect->ymax);
}
for (int i = 0; i < line_count_y; i++) {
const float y = start_y + i * step * zoom_y;
immVertex2f(pos, rect->xmin, y);
immVertex2f(pos, rect->xmax, y);
}
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 *region, uiBut *but, const uiWidgetColors *wcol, const rcti *rect)
{
uiButCurveMapping *but_cumap = (uiButCurveMapping *)but;
CurveMapping *cumap = (but_cumap->edit_cumap == NULL) ? (CurveMapping *)but->poin :
but_cumap->edit_cumap;
const float clip_size_x = BLI_rctf_size_x(&cumap->curr);
const 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 */
const float zoomx = (BLI_rcti_size_x(rect) - 2.0f) / clip_size_x;
const float zoomy = (BLI_rcti_size_y(rect) - 2.0f) / clip_size_y;
const float offsx = cumap->curr.xmin - (1.0f / zoomx);
const 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(scissor);
rcti scissor_new = {
.xmin = rect->xmin,
.ymin = rect->ymin,
.xmax = rect->xmax,
.ymax = rect->ymax,
};
const rcti scissor_region = {0, region->winx, 0, region->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_cumap->gradient_type == UI_GRAD_H) {
/* magic trigger for curve backgrounds */
const 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_cumap->gradient_type == UI_GRAD_H) {
/* grid, hsv uses different grid */
GPU_blend(GPU_BLEND_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(GPU_BLEND_NONE);
}
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_cumap->gradient_type == 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) {
const 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 ((cumap->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 ((cumap->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(GPU_BLEND_ALPHA);
/* Curve filled. */
immUniformColor3ubvAlpha(wcol->item, 128);
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++) {
const float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
const 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();
/* 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++) {
const float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
const 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(GPU_BLEND_NONE);
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);
const 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++) {
const float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
const 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();
}
/**
* Helper for #ui_draw_but_CURVEPROFILE. Used to tell whether to draw a control point's handles.
*/
static bool point_draw_handles(CurveProfilePoint *point)
{
return (point->flag & PROF_SELECT &&
(ELEM(point->h1, HD_FREE, HD_ALIGN) || ELEM(point->h2, HD_FREE, HD_ALIGN))) ||
ELEM(point->flag, PROF_H1_SELECT, PROF_H2_SELECT);
}
/**
* Draws the curve profile widget. Somewhat similar to ui_draw_but_CURVE.
*/
void ui_draw_but_CURVEPROFILE(ARegion *region,
uiBut *but,
const uiWidgetColors *wcol,
const rcti *rect)
{
uint i;
float fx, fy;
uiButCurveProfile *but_profile = (uiButCurveProfile *)but;
CurveProfile *profile = (but_profile->edit_profile == NULL) ? (CurveProfile *)but->poin :
but_profile->edit_profile;
/* Calculate offset and zoom. */
const float zoomx = (BLI_rcti_size_x(rect) - 2.0f) / BLI_rctf_size_x(&profile->view_rect);
const float zoomy = (BLI_rcti_size_y(rect) - 2.0f) / BLI_rctf_size_y(&profile->view_rect);
const float offsx = profile->view_rect.xmin - (1.0f / zoomx);
const 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(scissor);
rcti scissor_new = {
.xmin = rect->xmin,
.ymin = rect->ymin,
.xmax = rect->xmax,
.ymax = rect->ymax,
};
const rcti scissor_region = {0, region->winx, 0, region->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);
/* Draw the 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, PROF_UPDATE_NONE);
}
CurveProfilePoint *pts = profile->table;
/* Also add the last points on the right and bottom edges to close off the fill polygon. */
const bool add_left_tri = profile->view_rect.xmin < 0.0f;
const bool add_bottom_tri = profile->view_rect.ymin < 0.0f;
uint tot_points = (uint)PROF_TABLE_LEN(profile->path_len) + 1 + add_left_tri + add_bottom_tri;
const 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_TABLE_LEN(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(GPU_BLEND_ALPHA);
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();
MEM_freeN(table_coords);
/* Draw the handles for the selected control points. */
pts = profile->path;
tot_points = (uint)profile->path_len;
int selected_free_points = 0;
for (i = 0; i < tot_points; i++) {
if (point_draw_handles(&pts[i])) {
selected_free_points++;
}
}
/* Draw the lines to the handles from the points. */
if (selected_free_points > 0) {
GPU_line_width(1.0f);
gl_shaded_color((uchar *)wcol->inner, -24);
GPU_line_smooth(true);
immBegin(GPU_PRIM_LINES, selected_free_points * 4);
float ptx, pty;
for (i = 0; i < tot_points; i++) {
if (point_draw_handles(&pts[i])) {
ptx = rect->xmin + zoomx * (pts[i].x - offsx);
pty = rect->ymin + zoomy * (pts[i].y - offsy);
fx = rect->xmin + zoomx * (pts[i].h1_loc[0] - offsx);
fy = rect->ymin + zoomy * (pts[i].h1_loc[1] - offsy);
immVertex2f(pos, ptx, pty);
immVertex2f(pos, fx, fy);
fx = rect->xmin + zoomx * (pts[i].h2_loc[0] - offsx);
fy = rect->ymin + zoomy * (pts[i].h2_loc[1] - offsy);
immVertex2f(pos, ptx, pty);
immVertex2f(pos, fx, fy);
}
}
immEnd();
}
immUnbindProgram();
/* 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);
const 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. */
GPU_line_smooth(false);
GPU_blend(GPU_BLEND_NONE);
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 handle points. */
if (selected_free_points > 0) {
GPU_line_smooth(false);
GPU_blend(GPU_BLEND_NONE);
GPU_point_size(max_ff(2.0f, min_ff(UI_DPI_FAC / but->block->aspect * 4.0f, 4.0f)));
immBegin(GPU_PRIM_POINTS, selected_free_points * 2);
for (i = 0; i < tot_points; i++) {
if (point_draw_handles(&pts[i])) {
fx = rect->xmin + zoomx * (pts[i].h1_loc[0] - offsx);
fy = rect->ymin + zoomy * (pts[i].h1_loc[1] - offsy);
immAttr4fv(col, (pts[i].flag & PROF_H1_SELECT) ? color_vert_select : color_vert);
immVertex2f(pos, fx, fy);
fx = rect->xmin + zoomx * (pts[i].h2_loc[0] - offsx);
fy = rect->ymin + zoomy * (pts[i].h2_loc[1] - offsy);
immAttr4fv(col, (pts[i].flag & PROF_H2_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(region),
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,
};
const int width = BLI_rctf_size_x(&rect) + 1;
const int height = BLI_rctf_size_y(&rect);
GPU_blend(GPU_BLEND_ALPHA);
/* need scissor test, preview image can draw outside of boundary */
int scissor[4];
GPU_scissor_get(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) {
const 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) {
const 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,
GPU_RGBA8,
true,
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();
const uint pos = GPU_vertformat_attr_add(format, "pos", GPU_COMP_F32, 2, GPU_FETCH_FLOAT);
const 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);
const 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++) {
const float x1 = pos_sel[i] * (1 - axe);
const float y1 = pos_sel[i] * axe;
const float x2 = pos_sel[i + 1] * (1 - axe);
const 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) {
const 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);
}
/* Restore scissor test. */
GPU_scissor(UNPACK4(scissor));
/* outline */
draw_scope_end(&rect);
GPU_blend(GPU_BLEND_NONE);
}
/* ****************************************************** */
/* 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(GPU_BLEND_ALPHA);
GPUVertFormat *format = immVertexFormat();
const 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(GPU_BLEND_NONE);
}
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(GPU_BLEND_ALPHA);
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(*)[4]) & widget_params);
GPU_batch_uniform_1f(batch, "alpha", 1.0f - visibility);
GPU_batch_draw(batch);
/* outline emphasis */
const 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_blend(GPU_BLEND_NONE);
}
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