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blender-archive/source/blender/editors/interface/interface_draw.c
Mike Erwin e25ba162c0 OpenGL: call glLineWidth less often
Each LINES draw call is now responsible for its own line width. No need
to set it back to its 1.0 default after every draw.

This eliminates half our calls to glLineWidth , similar to last week’s
work on glPointSize.
2016-01-23 00:58:51 -05:00

1735 lines
50 KiB
C

/*
* ***** BEGIN GPL LICENSE BLOCK *****
*
* 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.
*
* Contributor(s): Blender Foundation
*
* ***** END GPL LICENSE BLOCK *****
*/
/** \file blender/editors/interface/interface_draw.c
* \ingroup edinterface
*/
#include <math.h>
#include <string.h>
#include "DNA_color_types.h"
#include "DNA_screen_types.h"
#include "DNA_movieclip_types.h"
#include "BLI_math.h"
#include "BLI_rect.h"
#include "BLI_string.h"
#include "BLI_utildefines.h"
#include "BKE_colortools.h"
#include "BKE_node.h"
#include "BKE_texture.h"
#include "BKE_tracking.h"
#include "IMB_imbuf.h"
#include "IMB_imbuf_types.h"
#include "IMB_colormanagement.h"
#include "BIF_gl.h"
#include "BIF_glutil.h"
#include "BLF_api.h"
#include "GPU_draw.h"
#include "GPU_basic_shader.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;
}
int UI_draw_roundbox_corner_get(void)
{
return roundboxtype;
}
void UI_draw_roundbox_gl_mode(int mode, float minx, float miny, float maxx, float maxy, float rad)
{
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;
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
glBegin(mode);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
glVertex2f(maxx - rad, miny);
for (a = 0; a < 7; a++) {
glVertex2f(maxx - rad + vec[a][0], miny + vec[a][1]);
}
glVertex2f(maxx, miny + rad);
}
else {
glVertex2f(maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
glVertex2f(maxx, maxy - rad);
for (a = 0; a < 7; a++) {
glVertex2f(maxx - vec[a][1], maxy - rad + vec[a][0]);
}
glVertex2f(maxx - rad, maxy);
}
else {
glVertex2f(maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
glVertex2f(minx + rad, maxy);
for (a = 0; a < 7; a++) {
glVertex2f(minx + rad - vec[a][0], maxy - vec[a][1]);
}
glVertex2f(minx, maxy - rad);
}
else {
glVertex2f(minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
glVertex2f(minx, miny + rad);
for (a = 0; a < 7; a++) {
glVertex2f(minx + vec[a][1], miny + rad - vec[a][0]);
}
glVertex2f(minx + rad, miny);
}
else {
glVertex2f(minx, miny);
}
glEnd();
}
static void round_box_shade_col(const float col1[3], float const col2[3], const float fac)
{
float col[3] = {
fac * col1[0] + (1.0f - fac) * col2[0],
fac * col1[1] + (1.0f - fac) * col2[1],
fac * col1[2] + (1.0f - fac) * col2[2]
};
glColor3fv(col);
}
/* linear horizontal shade within button or in outline */
/* view2d scrollers use it */
void UI_draw_roundbox_shade_x(
int mode, float minx, float miny, float maxx, float maxy,
float rad, float shadetop, float shadedown)
{
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], color[4];
int a;
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
/* get current color, needs to be outside of glBegin/End */
glGetFloatv(GL_CURRENT_COLOR, color);
/* 'shade' defines strength of shading */
coltop[0] = min_ff(1.0f, color[0] + shadetop);
coltop[1] = min_ff(1.0f, color[1] + shadetop);
coltop[2] = min_ff(1.0f, color[2] + shadetop);
coldown[0] = max_ff(0.0f, color[0] + shadedown);
coldown[1] = max_ff(0.0f, color[1] + shadedown);
coldown[2] = max_ff(0.0f, color[2] + shadedown);
glShadeModel(GL_SMOOTH);
glBegin(mode);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
round_box_shade_col(coltop, coldown, 0.0);
glVertex2f(maxx - rad, miny);
for (a = 0; a < 7; a++) {
round_box_shade_col(coltop, coldown, vec[a][1] * idiv);
glVertex2f(maxx - rad + vec[a][0], miny + vec[a][1]);
}
round_box_shade_col(coltop, coldown, rad * idiv);
glVertex2f(maxx, miny + rad);
}
else {
round_box_shade_col(coltop, coldown, 0.0);
glVertex2f(maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
round_box_shade_col(coltop, coldown, (div - rad) * idiv);
glVertex2f(maxx, maxy - rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(coltop, coldown, (div - rad + vec[a][1]) * idiv);
glVertex2f(maxx - vec[a][1], maxy - rad + vec[a][0]);
}
round_box_shade_col(coltop, coldown, 1.0);
glVertex2f(maxx - rad, maxy);
}
else {
round_box_shade_col(coltop, coldown, 1.0);
glVertex2f(maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
round_box_shade_col(coltop, coldown, 1.0);
glVertex2f(minx + rad, maxy);
for (a = 0; a < 7; a++) {
round_box_shade_col(coltop, coldown, (div - vec[a][1]) * idiv);
glVertex2f(minx + rad - vec[a][0], maxy - vec[a][1]);
}
round_box_shade_col(coltop, coldown, (div - rad) * idiv);
glVertex2f(minx, maxy - rad);
}
else {
round_box_shade_col(coltop, coldown, 1.0);
glVertex2f(minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
round_box_shade_col(coltop, coldown, rad * idiv);
glVertex2f(minx, miny + rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(coltop, coldown, (rad - vec[a][1]) * idiv);
glVertex2f(minx + vec[a][1], miny + rad - vec[a][0]);
}
round_box_shade_col(coltop, coldown, 0.0);
glVertex2f(minx + rad, miny);
}
else {
round_box_shade_col(coltop, coldown, 0.0);
glVertex2f(minx, miny);
}
glEnd();
glShadeModel(GL_FLAT);
}
/* linear vertical shade within button or in outline */
/* view2d scrollers use it */
void UI_draw_roundbox_shade_y(
int mode, float minx, float miny, float maxx, float maxy,
float rad, float shadeLeft, float shadeRight)
{
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], color[4];
int a;
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
/* get current color, needs to be outside of glBegin/End */
glGetFloatv(GL_CURRENT_COLOR, color);
/* 'shade' defines strength of shading */
colLeft[0] = min_ff(1.0f, color[0] + shadeLeft);
colLeft[1] = min_ff(1.0f, color[1] + shadeLeft);
colLeft[2] = min_ff(1.0f, color[2] + shadeLeft);
colRight[0] = max_ff(0.0f, color[0] + shadeRight);
colRight[1] = max_ff(0.0f, color[1] + shadeRight);
colRight[2] = max_ff(0.0f, color[2] + shadeRight);
glShadeModel(GL_SMOOTH);
glBegin(mode);
/* start with corner right-bottom */
if (roundboxtype & UI_CNR_BOTTOM_RIGHT) {
round_box_shade_col(colLeft, colRight, 0.0);
glVertex2f(maxx - rad, miny);
for (a = 0; a < 7; a++) {
round_box_shade_col(colLeft, colRight, vec[a][0] * idiv);
glVertex2f(maxx - rad + vec[a][0], miny + vec[a][1]);
}
round_box_shade_col(colLeft, colRight, rad * idiv);
glVertex2f(maxx, miny + rad);
}
else {
round_box_shade_col(colLeft, colRight, 0.0);
glVertex2f(maxx, miny);
}
/* corner right-top */
if (roundboxtype & UI_CNR_TOP_RIGHT) {
round_box_shade_col(colLeft, colRight, 0.0);
glVertex2f(maxx, maxy - rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(colLeft, colRight, (div - rad - vec[a][0]) * idiv);
glVertex2f(maxx - vec[a][1], maxy - rad + vec[a][0]);
}
round_box_shade_col(colLeft, colRight, (div - rad) * idiv);
glVertex2f(maxx - rad, maxy);
}
else {
round_box_shade_col(colLeft, colRight, 0.0);
glVertex2f(maxx, maxy);
}
/* corner left-top */
if (roundboxtype & UI_CNR_TOP_LEFT) {
round_box_shade_col(colLeft, colRight, (div - rad) * idiv);
glVertex2f(minx + rad, maxy);
for (a = 0; a < 7; a++) {
round_box_shade_col(colLeft, colRight, (div - rad + vec[a][0]) * idiv);
glVertex2f(minx + rad - vec[a][0], maxy - vec[a][1]);
}
round_box_shade_col(colLeft, colRight, 1.0);
glVertex2f(minx, maxy - rad);
}
else {
round_box_shade_col(colLeft, colRight, 1.0);
glVertex2f(minx, maxy);
}
/* corner left-bottom */
if (roundboxtype & UI_CNR_BOTTOM_LEFT) {
round_box_shade_col(colLeft, colRight, 1.0);
glVertex2f(minx, miny + rad);
for (a = 0; a < 7; a++) {
round_box_shade_col(colLeft, colRight, (vec[a][0]) * idiv);
glVertex2f(minx + vec[a][1], miny + rad - vec[a][0]);
}
round_box_shade_col(colLeft, colRight, 1.0);
glVertex2f(minx + rad, miny);
}
else {
round_box_shade_col(colLeft, colRight, 1.0);
glVertex2f(minx, miny);
}
glEnd();
glShadeModel(GL_FLAT);
}
/* plain antialiased unfilled rectangle */
void UI_draw_roundbox_unfilled(float minx, float miny, float maxx, float maxy, float rad)
{
float color[4];
if (roundboxtype & UI_RB_ALPHA) {
glGetFloatv(GL_CURRENT_COLOR, color);
color[3] = 0.5;
glColor4fv(color);
glEnable(GL_BLEND);
}
/* set antialias line */
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
UI_draw_roundbox_gl_mode(GL_LINE_LOOP, minx, miny, maxx, maxy, rad);
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
}
/* (old, used in outliner) plain antialiased filled box */
void UI_draw_roundbox(float minx, float miny, float maxx, float maxy, float rad)
{
ui_draw_anti_roundbox(GL_POLYGON, minx, miny, maxx, maxy, rad, roundboxtype & UI_RB_ALPHA);
}
void UI_draw_text_underline(int pos_x, int pos_y, int len, int height)
{
int ofs_y = 4 * U.pixelsize;
glRecti(pos_x, pos_y - ofs_y, pos_x + len, pos_y - ofs_y + (height * U.pixelsize));
}
/* ************** SPECIAL BUTTON DRAWING FUNCTIONS ************* */
void ui_draw_but_IMAGE(ARegion *UNUSED(ar), uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti *rect)
{
#ifdef WITH_HEADLESS
(void)rect;
(void)but;
#else
ImBuf *ibuf = (ImBuf *)but->poin;
if (!ibuf) return;
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
//glColor4f(1.0, 0.f, 0.f, 1.f);
//fdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax)
/* prevent drawing outside widget area */
GLint scissor[4];
glGetIntegerv(GL_SCISSOR_BOX, scissor);
glScissor(ar->winrct.xmin + rect->xmin, ar->winrct.ymin + rect->ymin, w, h);
#endif
glEnable(GL_BLEND);
glColor4f(0.0, 0.0, 0.0, 0.0);
if (w != ibuf->x || h != ibuf->y) {
float facx = (float)w / (float)ibuf->x;
float facy = (float)h / (float)ibuf->y;
glPixelZoom(facx, facy);
}
glaDrawPixelsAuto((float)rect->xmin, (float)rect->ymin, ibuf->x, ibuf->y, GL_RGBA, GL_UNSIGNED_BYTE, GL_NEAREST, ibuf->rect);
glPixelZoom(1.0f, 1.0f);
glDisable(GL_BLEND);
#if 0
// restore scissortest
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
#endif
#endif
}
/**
* Draw title and text safe areas.
*
* The first 4 parameters are the offsets for the view, not the zones.
*/
void UI_draw_safe_areas(
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};
int safe_len = ARRAY_SIZE(safe_areas);
bool is_first = true;
for (int i = 0; i < safe_len; i++) {
if (safe_areas[i][0] || safe_areas[i][1]) {
float margin_x, margin_y;
float minx, miny, maxx, maxy;
if (is_first) {
UI_ThemeColorBlendShade(TH_VIEW_OVERLAY, TH_BACK, 0.25f, 0);
is_first = false;
}
margin_x = safe_areas[i][0] * size_x_half;
margin_y = safe_areas[i][1] * size_y_half;
minx = x1 + margin_x;
miny = y1 + margin_y;
maxx = x2 - margin_x;
maxy = y2 - margin_y;
glBegin(GL_LINE_LOOP);
glVertex2f(maxx, miny);
glVertex2f(maxx, maxy);
glVertex2f(minx, maxy);
glVertex2f(minx, miny);
glEnd();
}
}
}
static void draw_scope_end(const rctf *rect, GLint *scissor)
{
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* outline */
glColor4f(0.f, 0.f, 0.f, 0.5f);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_LINE_LOOP, rect->xmin - 1, rect->ymin, rect->xmax + 1, rect->ymax + 1, 3.0f);
}
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)
{
glEnable(GL_LINE_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
glColor4f(r, g, b, alpha);
if (is_line) {
/* curve outline */
glLineWidth(1.5);
glBegin(GL_LINE_STRIP);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
glVertex2f(x2, y + (data[i] * h));
}
glEnd();
}
else {
/* under the curve */
glShadeModel(GL_FLAT);
glBegin(GL_TRIANGLE_STRIP);
glVertex2f(x, y);
glVertex2f(x, y + (data[0] * h));
for (int i = 1; i < res; i++) {
float x2 = x + i * (w / (float)res);
glVertex2f(x2, y + (data[i] * h));
glVertex2f(x2, y);
}
glEnd();
/* curve outline */
glColor4f(0.f, 0.f, 0.f, 0.25f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glBegin(GL_LINE_STRIP);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
glVertex2f(x2, y + (data[i] * h));
}
glEnd();
}
glDisable(GL_LINE_SMOOTH);
}
#define HISTOGRAM_TOT_GRID_LINES 4
void ui_draw_but_HISTOGRAM(ARegion *ar, uiBut *but, 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;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
UI_ThemeColor4(TH_PREVIEW_BACK);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f);
/* need scissor test, histogram can draw outside of boundary */
GLint scissor[4];
glGetIntegerv(GL_VIEWPORT, scissor);
glScissor(ar->winrct.xmin + (rect.xmin - 1),
ar->winrct.ymin + (rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
glColor4f(1.f, 1.f, 1.f, 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) {
glColor4f(1.0f, 1.0f, 1.0f, 0.5f);
}
fdrawline(rect.xmin, rect.ymin + fac * h, rect.xmax, rect.ymin + fac * h);
fdrawline(rect.xmin + fac * w, rect.ymin, rect.xmin + fac * w, rect.ymax);
}
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);
}
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);
}
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);
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);
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);
}
/* outline */
draw_scope_end(&rect, scissor);
}
#undef HISTOGRAM_TOT_GRID_LINES
void ui_draw_but_WAVEFORM(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti *recti)
{
Scopes *scopes = (Scopes *)but->poin;
GLint scissor[4];
float colors[3][3];
float colorsycc[3][3] = {{1, 0, 1}, {1, 1, 0}, {0, 1, 1}};
float colors_alpha[3][3], colorsycc_alpha[3][3]; /* colors pre multiplied by alpha for speed up */
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) / 2.0f;
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;
}
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
UI_ThemeColor4(TH_PREVIEW_BACK);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f);
/* need scissor test, waveform can draw outside of boundary */
glGetIntegerv(GL_VIEWPORT, scissor);
glScissor(ar->winrct.xmin + (rect.xmin - 1),
ar->winrct.ymin + (rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
glColor4f(1.f, 1.f, 1.f, 0.08f);
/* draw grid lines here */
for (int i = 0; i < 6; i++) {
char str[4];
BLI_snprintf(str, sizeof(str), "%-3d", i * 20);
str[3] = '\0';
fdrawline(rect.xmin + 22, yofs + (i / 5.f) * h, rect.xmax + 1, yofs + (i / 5.f) * h);
BLF_draw_default(rect.xmin + 1, yofs - 5 + (i / 5.f) * h, 0, str, sizeof(str) - 1);
/* in the loop because blf_draw reset it */
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
}
/* 3 vertical separation */
if (scopes->wavefrm_mode != SCOPES_WAVEFRM_LUMA) {
for (int i = 1; i < 3; i++) {
fdrawline(rect.xmin + i * w3, rect.ymin, rect.xmin + i * w3, rect.ymax);
}
}
/* separate min max zone on the right */
fdrawline(rect.xmin + w, rect.ymin, rect.xmin + w, rect.ymax);
/* 16-235-240 level in case of ITU-R BT601/709 */
glColor4f(1.f, 0.4f, 0.f, 0.2f);
if (ELEM(scopes->wavefrm_mode, SCOPES_WAVEFRM_YCC_601, SCOPES_WAVEFRM_YCC_709)) {
fdrawline(rect.xmin + 22, yofs + h * 16.0f / 255.0f, rect.xmax + 1, yofs + h * 16.0f / 255.0f);
fdrawline(rect.xmin + 22, yofs + h * 235.0f / 255.0f, rect.xmin + w3, yofs + h * 235.0f / 255.0f);
fdrawline(rect.xmin + 3 * w3, yofs + h * 235.0f / 255.0f, rect.xmax + 1, yofs + h * 235.0f / 255.0f);
fdrawline(rect.xmin + w3, yofs + h * 240.0f / 255.0f, rect.xmax + 1, yofs + h * 240.0f / 255.0f);
}
/* 7.5 IRE black point level for NTSC */
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA)
fdrawline(rect.xmin, yofs + h * 0.075f, rect.xmax + 1, yofs + h * 0.075f);
if (scopes->ok && scopes->waveform_1 != NULL) {
/* LUMA (1 channel) */
glBlendFunc(GL_ONE, GL_ONE);
glColor3f(alpha, alpha, alpha);
glPointSize(1.0);
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA) {
glBlendFunc(GL_ONE, GL_ONE);
glPushMatrix();
glEnableClientState(GL_VERTEX_ARRAY);
glTranslatef(rect.xmin, yofs, 0.f);
glScalef(w, h, 0.f);
glVertexPointer(2, GL_FLOAT, 0, scopes->waveform_1);
glDrawArrays(GL_POINTS, 0, scopes->waveform_tot);
glDisableClientState(GL_VERTEX_ARRAY);
glPopMatrix();
/* min max */
glColor3f(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);
fdrawline(rect.xmax - 3, min, rect.xmax - 3, max);
}
/* RGB / YCC (3 channels) */
else if (ELEM(scopes->wavefrm_mode,
SCOPES_WAVEFRM_RGB,
SCOPES_WAVEFRM_YCC_601,
SCOPES_WAVEFRM_YCC_709,
SCOPES_WAVEFRM_YCC_JPEG))
{
int rgb = (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB);
glBlendFunc(GL_ONE, GL_ONE);
glPushMatrix();
glEnableClientState(GL_VERTEX_ARRAY);
glTranslatef(rect.xmin, yofs, 0.f);
glScalef(w3, h, 0.f);
glColor3fv((rgb) ? colors_alpha[0] : colorsycc_alpha[0]);
glVertexPointer(2, GL_FLOAT, 0, scopes->waveform_1);
glDrawArrays(GL_POINTS, 0, scopes->waveform_tot);
glTranslatef(1.f, 0.f, 0.f);
glColor3fv((rgb) ? colors_alpha[1] : colorsycc_alpha[1]);
glVertexPointer(2, GL_FLOAT, 0, scopes->waveform_2);
glDrawArrays(GL_POINTS, 0, scopes->waveform_tot);
glTranslatef(1.f, 0.f, 0.f);
glColor3fv((rgb) ? colors_alpha[2] : colorsycc_alpha[2]);
glVertexPointer(2, GL_FLOAT, 0, scopes->waveform_3);
glDrawArrays(GL_POINTS, 0, scopes->waveform_tot);
glDisableClientState(GL_VERTEX_ARRAY);
glPopMatrix();
/* min max */
for (int c = 0; c < 3; c++) {
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB)
glColor3f(colors[c][0] * 0.75f, colors[c][1] * 0.75f, colors[c][2] * 0.75f);
else
glColor3f(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);
fdrawline(rect.xmin + w + 2 + c * 2, min, rect.xmin + w + 2 + c * 2, max);
}
}
}
/* outline */
draw_scope_end(&rect, scissor);
}
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(float centerx, float centery, float diam, const float colf[3])
{
float y, u, v;
float tangle = 0.f, tampli;
float dangle, dampli, dangle2, dampli2;
rgb_to_yuv(colf[0], colf[1], colf[2], &y, &u, &v);
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 */
glColor4f(1.0f, 1.0f, 1.0, 0.12f);
dangle = DEG2RADF(2.5f);
dampli = 2.5f / 200.0f;
glBegin(GL_LINE_LOOP);
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle + dangle), polar_to_y(centery, diam, tampli + dampli, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle + dangle), polar_to_y(centery, diam, tampli - dampli, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle - dangle), polar_to_y(centery, diam, tampli - dampli, tangle - dangle));
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle - dangle), polar_to_y(centery, diam, tampli + dampli, tangle - dangle));
glEnd();
/* big target vary by 10 degree and 20% amplitude */
glColor4f(1.0f, 1.0f, 1.0, 0.12f);
dangle = DEG2RADF(10.0f);
dampli = 0.2f * tampli;
dangle2 = DEG2RADF(5.0f);
dampli2 = 0.5f * dampli;
glBegin(GL_LINE_STRIP);
glVertex2f(polar_to_x(centerx, diam, tampli + dampli - dampli2, tangle + dangle), polar_to_y(centery, diam, tampli + dampli - dampli2, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle + dangle), polar_to_y(centery, diam, tampli + dampli, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle + dangle - dangle2), polar_to_y(centery, diam, tampli + dampli, tangle + dangle - dangle2));
glEnd();
glBegin(GL_LINE_STRIP);
glVertex2f(polar_to_x(centerx, diam, tampli - dampli + dampli2, tangle + dangle), polar_to_y(centery, diam, tampli - dampli + dampli2, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle + dangle), polar_to_y(centery, diam, tampli - dampli, tangle + dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle + dangle - dangle2), polar_to_y(centery, diam, tampli - dampli, tangle + dangle - dangle2));
glEnd();
glBegin(GL_LINE_STRIP);
glVertex2f(polar_to_x(centerx, diam, tampli - dampli + dampli2, tangle - dangle), polar_to_y(centery, diam, tampli - dampli + dampli2, tangle - dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle - dangle), polar_to_y(centery, diam, tampli - dampli, tangle - dangle));
glVertex2f(polar_to_x(centerx, diam, tampli - dampli, tangle - dangle + dangle2), polar_to_y(centery, diam, tampli - dampli, tangle - dangle + dangle2));
glEnd();
glBegin(GL_LINE_STRIP);
glVertex2f(polar_to_x(centerx, diam, tampli + dampli - dampli2, tangle - dangle), polar_to_y(centery, diam, tampli + dampli - dampli2, tangle - dangle));
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle - dangle), polar_to_y(centery, diam, tampli + dampli, tangle - dangle));
glVertex2f(polar_to_x(centerx, diam, tampli + dampli, tangle - dangle + dangle2), polar_to_y(centery, diam, tampli + dampli, tangle - dangle + dangle2));
glEnd();
}
void ui_draw_but_VECTORSCOPE(ARegion *ar, uiBut *but, 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 / 2;
float centery = rect.ymin + h / 2;
float diam = (w < h) ? w : h;
float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
UI_ThemeColor4(TH_PREVIEW_BACK);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f);
/* need scissor test, hvectorscope can draw outside of boundary */
GLint scissor[4];
glGetIntegerv(GL_VIEWPORT, scissor);
glScissor(ar->winrct.xmin + (rect.xmin - 1),
ar->winrct.ymin + (rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
glColor4f(1.f, 1.f, 1.f, 0.08f);
/* draw grid elements */
/* cross */
fdrawline(centerx - (diam / 2) - 5, centery, centerx + (diam / 2) + 5, centery);
fdrawline(centerx, centery - (diam / 2) - 5, centerx, centery + (diam / 2) + 5);
/* circles */
for (int j = 0; j < 5; j++) {
glBegin(GL_LINE_LOOP);
const int increment = 15;
for (int i = 0; i <= 360 - increment; i += increment) {
const float a = DEG2RADF((float)i);
const float r = (j + 1) / 10.0f;
glVertex2f(polar_to_x(centerx, diam, r, a), polar_to_y(centery, diam, r, a));
}
glEnd();
}
/* skin tone line */
glColor4f(1.f, 0.4f, 0.f, 0.2f);
fdrawline(polar_to_x(centerx, diam, 0.5f, skin_rad), polar_to_y(centery, diam, 0.5, skin_rad),
polar_to_x(centerx, diam, 0.1f, skin_rad), polar_to_y(centery, diam, 0.1, skin_rad));
/* saturation points */
for (int i = 0; i < 6; i++)
vectorscope_draw_target(centerx, centery, diam, colors[i]);
if (scopes->ok && scopes->vecscope != NULL) {
/* pixel point cloud */
glBlendFunc(GL_ONE, GL_ONE);
glColor3f(alpha, alpha, alpha);
glPushMatrix();
glEnableClientState(GL_VERTEX_ARRAY);
glTranslatef(centerx, centery, 0.f);
glScalef(diam, diam, 0.f);
glVertexPointer(2, GL_FLOAT, 0, scopes->vecscope);
glPointSize(1.0);
glDrawArrays(GL_POINTS, 0, scopes->waveform_tot);
glDisableClientState(GL_VERTEX_ARRAY);
glPopMatrix();
}
/* outline */
draw_scope_end(&rect, scissor);
glDisable(GL_BLEND);
}
static void ui_draw_colorband_handle_tri_hlight(float x1, float y1, float halfwidth, float height)
{
glEnable(GL_LINE_SMOOTH);
glBegin(GL_LINE_STRIP);
glVertex2f(x1 + halfwidth, y1);
glVertex2f(x1, y1 + height);
glVertex2f(x1 - halfwidth, y1);
glEnd();
glDisable(GL_LINE_SMOOTH);
}
static void ui_draw_colorband_handle_tri(float x1, float y1, float halfwidth, float height, bool fill)
{
glEnable(fill ? GL_POLYGON_SMOOTH : GL_LINE_SMOOTH);
glBegin(fill ? GL_TRIANGLES : GL_LINE_LOOP);
glVertex2f(x1 + halfwidth, y1);
glVertex2f(x1, y1 + height);
glVertex2f(x1 - halfwidth, y1);
glEnd();
glDisable(fill ? GL_POLYGON_SMOOTH : GL_LINE_SMOOTH);
}
static void ui_draw_colorband_handle_box(float x1, float y1, float x2, float y2, bool fill)
{
glBegin(fill ? GL_QUADS : GL_LINE_LOOP);
glVertex2f(x1, y1);
glVertex2f(x1, y2);
glVertex2f(x2, y2);
glVertex2f(x2, y1);
glEnd();
}
static void ui_draw_colorband_handle(
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) {
glBegin(GL_LINES);
glColor3ub(0, 0, 0);
glVertex2f(x, y1);
glVertex2f(x, y2);
glEnd();
setlinestyle(active ? 2 : 1);
glBegin(GL_LINES);
glColor3ub(200, 200, 200);
glVertex2f(x, y1);
glVertex2f(x, y2);
glEnd();
setlinestyle(0);
/* hide handles when zoomed out too far */
if (half_width < min_width) {
return;
}
}
/* shift handle down */
y1 -= half_width;
glColor3ub(0, 0, 0);
ui_draw_colorband_handle_box(x - half_width, y1 - 1, x + half_width, y1 + height, false);
/* draw all triangles blended */
glEnable(GL_BLEND);
ui_draw_colorband_handle_tri(x, y1 + height, half_width, half_width, true);
if (active)
glColor3ub(196, 196, 196);
else
glColor3ub(96, 96, 96);
ui_draw_colorband_handle_tri(x, y1 + height, half_width, half_width, true);
if (active)
glColor3ub(255, 255, 255);
else
glColor3ub(128, 128, 128);
ui_draw_colorband_handle_tri_hlight(x, y1 + height - 1, (half_width - 1), (half_width - 1));
glColor3ub(0, 0, 0);
ui_draw_colorband_handle_tri_hlight(x, y1 + height, half_width, half_width);
glDisable(GL_BLEND);
glColor3ub(128, 128, 128);
ui_draw_colorband_handle_box(x - (half_width - 1), y1, x + (half_width - 1), y1 + height, true);
if (display) {
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
}
glColor3fv(colf);
ui_draw_colorband_handle_box(x - (half_width - 2), y1 + 1, x + (half_width - 2), y1 + height - 2, true);
}
void ui_draw_but_COLORBAND(uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti *rect)
{
struct ColorManagedDisplay *display = NULL;
ColorBand *coba = (ColorBand *)(but->editcoba ? but->editcoba : but->poin);
if (coba == NULL) return;
if (but->block->color_profile)
display = ui_block_cm_display_get(but->block);
float x1 = rect->xmin;
float sizex = rect->xmax - x1;
float sizey = BLI_rcti_size_y(rect);
float sizey_solid = sizey / 4;
float y1 = rect->ymin;
/* Drawing the checkerboard.
* This could be optimized with a single checkerboard shader,
* instead of drawing twice and using stippling the second time. */
/* layer: background, to show tranparency */
glColor4ub(UI_ALPHA_CHECKER_DARK, UI_ALPHA_CHECKER_DARK, UI_ALPHA_CHECKER_DARK, 255);
glRectf(x1, y1, x1 + sizex, rect->ymax);
GPU_basic_shader_bind(GPU_SHADER_STIPPLE | GPU_SHADER_USE_COLOR);
glColor4ub(UI_ALPHA_CHECKER_LIGHT, UI_ALPHA_CHECKER_LIGHT, UI_ALPHA_CHECKER_LIGHT, 255);
GPU_basic_shader_stipple(GPU_SHADER_STIPPLE_CHECKER_8PX);
glRectf(x1, y1, x1 + sizex, rect->ymax);
GPU_basic_shader_bind(GPU_SHADER_USE_COLOR);
/* layer: color ramp */
glShadeModel(GL_FLAT);
glEnable(GL_BLEND);
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;
glBegin(GL_TRIANGLE_STRIP);
for (int a = 0; a <= sizex; a++) {
float pos = ((float)a) / sizex;
do_colorband(coba, pos, colf);
if (display)
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
v1[0] = v2[0] = x1 + a;
glColor4fv(colf);
glVertex2fv(v1);
glVertex2fv(v2);
}
glEnd();
/* layer: color ramp without alpha for reference when manipulating ramp properties */
v1[1] = y1;
v2[1] = y1 + sizey_solid;
glBegin(GL_TRIANGLE_STRIP);
for (int a = 0; a <= sizex; a++) {
float pos = ((float)a) / sizex;
do_colorband(coba, pos, colf);
if (display)
IMB_colormanagement_scene_linear_to_display_v3(colf, display);
v1[0] = v2[0] = x1 + a;
glColor4f(colf[0], colf[1], colf[2], 1.0f);
glVertex2fv(v1);
glVertex2fv(v2);
}
glEnd();
glDisable(GL_BLEND);
glShadeModel(GL_SMOOTH);
/* layer: box outline */
glColor4f(0.0, 0.0, 0.0, 1.0);
fdrawbox(x1, y1, x1 + sizex, rect->ymax);
/* layer: box outline */
glEnable(GL_BLEND);
glColor4f(0.0f, 0.0f, 0.0f, 0.5f);
fdrawline(x1, y1, x1 + sizex, y1);
glColor4f(1.0f, 1.0f, 1.0f, 0.25f);
fdrawline(x1, y1 - 1, x1 + sizex, y1 - 1);
glDisable(GL_BLEND);
/* 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(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(rect, pos, &cbd->r, display, true);
}
}
void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
{
static GLuint displist = 0;
float diffuse[3] = {1.0f, 1.0f, 1.0f};
float size;
/* backdrop */
glColor3ubv((unsigned char *)wcol->inner);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect->xmin, rect->ymin, rect->xmax, rect->ymax, 5.0f);
/* sphere color */
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
/* setup lights */
GPULightData light = {0};
light.type = GPU_LIGHT_SUN;
copy_v3_v3(light.diffuse, diffuse);
zero_v3(light.specular);
ui_but_v3_get(but, light.direction);
GPU_basic_shader_light_set(0, &light);
for (int a = 1; a < 8; a++)
GPU_basic_shader_light_set(a, NULL);
/* setup shader */
GPU_basic_shader_colors(diffuse, NULL, 0, 1.0f);
GPU_basic_shader_bind(GPU_SHADER_LIGHTING);
/* transform to button */
glPushMatrix();
glTranslatef(rect->xmin + 0.5f * BLI_rcti_size_x(rect), rect->ymin + 0.5f * BLI_rcti_size_y(rect), 0.0f);
if (BLI_rcti_size_x(rect) < BLI_rcti_size_y(rect))
size = BLI_rcti_size_x(rect) / 200.f;
else
size = BLI_rcti_size_y(rect) / 200.f;
glScalef(size, size, MIN2(size, 1.0f));
if (displist == 0) {
GLUquadricObj *qobj;
displist = glGenLists(1);
glNewList(displist, GL_COMPILE);
qobj = gluNewQuadric();
gluQuadricDrawStyle(qobj, GLU_FILL);
glShadeModel(GL_SMOOTH);
gluSphere(qobj, 100.0, 32, 24);
glShadeModel(GL_FLAT);
gluDeleteQuadric(qobj);
glEndList();
}
glCallList(displist);
/* restore */
GPU_basic_shader_bind(GPU_SHADER_USE_COLOR);
GPU_default_lights();
glDisable(GL_CULL_FACE);
/* AA circle */
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
glColor3ubv((unsigned char *)wcol->inner);
glutil_draw_lined_arc(0.0f, M_PI * 2.0, 100.0f, 32);
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
/* matrix after circle */
glPopMatrix();
}
static void ui_draw_but_curve_grid(const rcti *rect, float zoomx, float zoomy, float offsx, float offsy, float step)
{
glBegin(GL_LINES);
float dx = step * zoomx;
float fx = rect->xmin + zoomx * (-offsx);
if (fx > rect->xmin) fx -= dx * (floorf(fx - rect->xmin));
while (fx < rect->xmax) {
glVertex2f(fx, rect->ymin);
glVertex2f(fx, rect->ymax);
fx += dx;
}
float dy = step * zoomy;
float fy = rect->ymin + zoomy * (-offsy);
if (fy > rect->ymin) fy -= dy * (floorf(fy - rect->ymin));
while (fy < rect->ymax) {
glVertex2f(rect->xmin, fy);
glVertex2f(rect->xmax, fy);
fy += dy;
}
glEnd();
}
static void gl_shaded_color(unsigned char *col, int shade)
{
glColor3ub(col[0] - shade > 0 ? col[0] - shade : 0,
col[1] - shade > 0 ? col[1] - shade : 0,
col[2] - shade > 0 ? col[2] - shade : 0);
}
void ui_draw_but_CURVE(ARegion *ar, uiBut *but, uiWidgetColors *wcol, const rcti *rect)
{
CurveMapping *cumap;
if (but->editcumap) {
cumap = but->editcumap;
}
else {
cumap = (CurveMapping *)but->poin;
}
CurveMap *cuma = &cumap->cm[cumap->cur];
/* need scissor test, curve can draw outside of boundary */
GLint scissor[4];
glGetIntegerv(GL_VIEWPORT, scissor);
rcti scissor_new = {
.xmin = ar->winrct.xmin + rect->xmin,
.ymin = ar->winrct.ymin + rect->ymin,
.xmax = ar->winrct.xmin + rect->xmax,
.ymax = ar->winrct.ymin + rect->ymax
};
BLI_rcti_isect(&scissor_new, &ar->winrct, &scissor_new);
glScissor(scissor_new.xmin,
scissor_new.ymin,
BLI_rcti_size_x(&scissor_new),
BLI_rcti_size_y(&scissor_new));
/* calculate offset and zoom */
float zoomx = (BLI_rcti_size_x(rect) - 2.0f) / BLI_rctf_size_x(&cumap->curr);
float zoomy = (BLI_rcti_size_y(rect) - 2.0f) / BLI_rctf_size_y(&cumap->curr);
float offsx = cumap->curr.xmin - (1.0f / zoomx);
float offsy = cumap->curr.ymin - (1.0f / zoomy);
/* backdrop */
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);
/* grid, hsv uses different grid */
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glColor4ub(0, 0, 0, 48);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 0.1666666f);
glDisable(GL_BLEND);
}
else {
if (cumap->flag & CUMA_DO_CLIP) {
gl_shaded_color((unsigned char *)wcol->inner, -20);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
glColor3ubv((unsigned char *)wcol->inner);
glRectf(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 {
glColor3ubv((unsigned char *)wcol->inner);
glRectf(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
/* grid, every 0.25 step */
gl_shaded_color((unsigned char *)wcol->inner, -16);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 0.25f);
/* grid, every 1.0 step */
gl_shaded_color((unsigned char *)wcol->inner, -24);
ui_draw_but_curve_grid(rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* axes */
gl_shaded_color((unsigned char *)wcol->inner, -50);
glBegin(GL_LINES);
glVertex2f(rect->xmin, rect->ymin + zoomy * (-offsy));
glVertex2f(rect->xmax, rect->ymin + zoomy * (-offsy));
glVertex2f(rect->xmin + zoomx * (-offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (-offsx), rect->ymax);
glEnd();
}
/* cfra option */
/* XXX 2.48 */
#if 0
if (cumap->flag & CUMA_DRAW_CFRA) {
glColor3ub(0x60, 0xc0, 0x40);
glBegin(GL_LINES);
glVertex2f(rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (cumap->sample[0] - offsx), rect->ymax);
glEnd();
}
#endif
/* sample option */
if (cumap->flag & CUMA_DRAW_SAMPLE) {
glBegin(GL_LINES); /* 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);
glColor3ub(240, 240, 240);
glVertex2f(rect->xmin + zoomx * (hsv[0] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (hsv[0] - offsx), rect->ymax);
}
else if (cumap->cur == 3) {
float lum = IMB_colormanagement_get_luminance(cumap->sample);
glColor3ub(240, 240, 240);
glVertex2f(rect->xmin + zoomx * (lum - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (lum - offsx), rect->ymax);
}
else {
if (cumap->cur == 0)
glColor3ub(240, 100, 100);
else if (cumap->cur == 1)
glColor3ub(100, 240, 100);
else
glColor3ub(100, 100, 240);
glVertex2f(rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymin);
glVertex2f(rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymax);
}
glEnd();
}
/* the curve */
glColor3ubv((unsigned char *)wcol->item);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
glBegin(GL_LINE_STRIP);
if (cuma->table == NULL)
curvemapping_changed(cumap, false);
CurveMapPoint *cmp = cuma->table;
/* first point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
glVertex2f(rect->xmin, rect->ymin + zoomy * (cmp[0].y - offsy));
}
else {
float fx = rect->xmin + zoomx * (cmp[0].x - offsx + cuma->ext_in[0]);
float fy = rect->ymin + zoomy * (cmp[0].y - offsy + cuma->ext_in[1]);
glVertex2f(fx, fy);
}
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);
glVertex2f(fx, fy);
}
/* last point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
glVertex2f(rect->xmax, rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy));
}
else {
float fx = rect->xmin + zoomx * (cmp[CM_TABLE].x - offsx - cuma->ext_out[0]);
float fy = rect->ymin + zoomy * (cmp[CM_TABLE].y - offsy - cuma->ext_out[1]);
glVertex2f(fx, fy);
}
glEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
/* the points, use aspect to make them visible on edges */
cmp = cuma->curve;
glPointSize(3.0f);
glBegin(GL_POINTS);
for (int a = 0; a < cuma->totpoint; a++) {
if (cmp[a].flag & CUMA_SELECT)
UI_ThemeColor(TH_TEXT_HI);
else
UI_ThemeColor(TH_TEXT);
float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
float fy = rect->ymin + zoomy * (cmp[a].y - offsy);
glVertex2f(fx, fy);
}
glEnd();
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* outline */
glColor3ubv((unsigned char *)wcol->outline);
fdrawbox(rect->xmin, rect->ymin, rect->xmax, rect->ymax);
}
void ui_draw_but_TRACKPREVIEW(ARegion *ar, uiBut *but, 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);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
/* need scissor test, preview image can draw outside of boundary */
GLint scissor[4];
glGetIntegerv(GL_VIEWPORT, scissor);
glScissor(ar->winrct.xmin + (rect.xmin - 1),
ar->winrct.ymin + (rect.ymin - 1),
(rect.xmax + 1) - (rect.xmin - 1),
(rect.ymax + 1) - (rect.ymin - 1));
if (scopes->track_disabled) {
glColor4f(0.7f, 0.3f, 0.3f, 0.3f);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f);
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) {
glPushMatrix();
/* draw content of pattern area */
glScissor(ar->winrct.xmin + rect.xmin, ar->winrct.ymin + rect.ymin, scissor[2], scissor[3]);
if (width > 0 && height > 0) {
ImBuf *drawibuf = scopes->track_preview;
if (scopes->use_track_mask) {
glColor4f(0.0f, 0.0f, 0.0f, 0.3f);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f);
}
glaDrawPixelsSafe(rect.xmin, rect.ymin + 1, drawibuf->x, drawibuf->y,
drawibuf->x, GL_RGBA, GL_UNSIGNED_BYTE, drawibuf->rect);
/* draw cross for pixel position */
glTranslatef(rect.xmin + scopes->track_pos[0], rect.ymin + scopes->track_pos[1], 0.f);
glScissor(ar->winrct.xmin + rect.xmin,
ar->winrct.ymin + rect.ymin,
BLI_rctf_size_x(&rect),
BLI_rctf_size_y(&rect));
for (int a = 0; a < 2; a++) {
if (a == 1) {
glLineStipple(3, 0xaaaa);
glEnable(GL_LINE_STIPPLE);
UI_ThemeColor(TH_SEL_MARKER);
}
else {
UI_ThemeColor(TH_MARKER_OUTLINE);
}
glBegin(GL_LINES);
glVertex2f(-10.0f, 0.0f);
glVertex2f(10.0f, 0.0f);
glVertex2f(0.0f, -10.0f);
glVertex2f(0.0f, 10.0f);
glEnd();
}
}
glDisable(GL_LINE_STIPPLE);
glPopMatrix();
ok = true;
}
if (!ok) {
glColor4f(0.f, 0.f, 0.f, 0.3f);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_POLYGON, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f);
}
/* outline */
draw_scope_end(&rect, scissor);
glDisable(GL_BLEND);
}
void ui_draw_but_NODESOCKET(ARegion *ar, uiBut *but, uiWidgetColors *UNUSED(wcol), const rcti *recti)
{
static const float size = 5.0f;
/* 16 values of sin function */
const float si[16] = {
0.00000000f, 0.39435585f, 0.72479278f, 0.93775213f,
0.99871650f, 0.89780453f, 0.65137248f, 0.29936312f,
-0.10116832f, -0.48530196f, -0.79077573f, -0.96807711f,
-0.98846832f, -0.84864425f, -0.57126821f, -0.20129852f
};
/* 16 values of cos function */
const float co[16] = {
1.00000000f, 0.91895781f, 0.68896691f, 0.34730525f,
-0.05064916f, -0.44039415f, -0.75875812f, -0.95413925f,
-0.99486932f, -0.87434661f, -0.61210598f, -0.25065253f,
0.15142777f, 0.52896401f, 0.82076344f, 0.97952994f,
};
GLint scissor[4];
/* need scissor test, can draw outside of boundary */
glGetIntegerv(GL_VIEWPORT, scissor);
rcti scissor_new = {
.xmin = ar->winrct.xmin + recti->xmin,
.ymin = ar->winrct.ymin + recti->ymin,
.xmax = ar->winrct.xmin + recti->xmax,
.ymax = ar->winrct.ymin + recti->ymax
};
BLI_rcti_isect(&scissor_new, &ar->winrct, &scissor_new);
glScissor(scissor_new.xmin,
scissor_new.ymin,
BLI_rcti_size_x(&scissor_new),
BLI_rcti_size_y(&scissor_new));
glColor4ubv(but->col);
float x = 0.5f * (recti->xmin + recti->xmax);
float y = 0.5f * (recti->ymin + recti->ymax);
glEnable(GL_BLEND);
glBegin(GL_POLYGON);
for (int a = 0; a < 16; a++)
glVertex2f(x + size * si[a], y + size * co[a]);
glEnd();
glColor4ub(0, 0, 0, 150);
glLineWidth(1);
glEnable(GL_LINE_SMOOTH);
glBegin(GL_LINE_LOOP);
for (int a = 0; a < 16; a++)
glVertex2f(x + size * si[a], y + size * co[a]);
glEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
}
/* ****************************************************** */
static void ui_shadowbox(float minx, float miny, float maxx, float maxy, float shadsize, unsigned char alpha)
{
/* right quad */
glColor4ub(0, 0, 0, alpha);
glVertex2f(maxx, miny);
glVertex2f(maxx, maxy - 0.3f * shadsize);
glColor4ub(0, 0, 0, 0);
glVertex2f(maxx + shadsize, maxy - 0.75f * shadsize);
glVertex2f(maxx + shadsize, miny);
/* corner shape */
glColor4ub(0, 0, 0, alpha);
glVertex2f(maxx, miny);
glColor4ub(0, 0, 0, 0);
glVertex2f(maxx + shadsize, miny);
glVertex2f(maxx + 0.7f * shadsize, miny - 0.7f * shadsize);
glVertex2f(maxx, miny - shadsize);
/* bottom quad */
glColor4ub(0, 0, 0, alpha);
glVertex2f(minx + 0.3f * shadsize, miny);
glVertex2f(maxx, miny);
glColor4ub(0, 0, 0, 0);
glVertex2f(maxx, miny - shadsize);
glVertex2f(minx + 0.5f * shadsize, miny - shadsize);
}
void UI_draw_box_shadow(unsigned char alpha, float minx, float miny, float maxx, float maxy)
{
glEnable(GL_BLEND);
glShadeModel(GL_SMOOTH);
glBegin(GL_QUADS);
/* accumulated outline boxes to make shade not linear, is more pleasant */
ui_shadowbox(minx, miny, maxx, maxy, 11.0, (20 * alpha) >> 8);
ui_shadowbox(minx, miny, maxx, maxy, 7.0, (40 * alpha) >> 8);
ui_shadowbox(minx, miny, maxx, maxy, 5.0, (80 * alpha) >> 8);
glEnd();
glDisable(GL_BLEND);
glShadeModel(GL_FLAT);
}
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) / 2.0f)
rad = (BLI_rctf_size_y(rct) - 10.0f) / 2.0f;
else
rad = radius;
int a, i = 12;
#if 0
if (select) {
a = i * aspect; /* same as below */
}
else
#endif
{
a = i * aspect;
}
glEnable(GL_BLEND);
const float dalpha = alpha * 2.0f / 255.0f;
float calpha = dalpha;
for (; i--; a -= aspect) {
/* alpha ranges from 2 to 20 or so */
glColor4f(0.0f, 0.0f, 0.0f, calpha);
calpha += dalpha;
UI_draw_roundbox_gl_mode(GL_POLYGON, rct->xmin - a, rct->ymin - a, rct->xmax + a, rct->ymax - 10.0f + a, rad + a);
}
/* outline emphasis */
glEnable(GL_LINE_SMOOTH);
glColor4ub(0, 0, 0, 100);
UI_draw_roundbox_gl_mode(GL_LINE_LOOP, rct->xmin - 0.5f, rct->ymin - 0.5f, rct->xmax + 0.5f, rct->ymax + 0.5f, radius + 0.5f);
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
}