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blender-archive/source/blender/editors/interface/interface_draw.c

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/*
* ***** 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 "GPU_batch.h"
#include "GPU_immediate.h"
#include "GPU_matrix.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_3ubAlpha(int mode, float minx, float miny, float maxx, float maxy, float rad, unsigned char col[3], unsigned char 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_gl_mode(mode, minx, miny, maxx, maxy, rad, colv);
}
void UI_draw_roundbox_gl_mode_3fvAlpha(int mode, float minx, float miny, float maxx, float maxy, float rad, 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_gl_mode(mode, minx, miny, maxx, maxy, rad, colv);
}
void UI_draw_roundbox_gl_mode(int mode, float minx, float miny, float maxx, float maxy, float rad, 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}};
int a;
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
BLI_assert(mode != GL_POLYGON);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4fv(col);
immBeginAtMost(mode, 36);
/* 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();
}
static void round_box_shade_col(unsigned attrib, 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
};
immAttrib4fv(attrib, 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, 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 = maxy - miny;
const float idiv = 1.0f / div;
float coltop[3], coldown[3];
int vert_count = 0;
int a;
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
unsigned color = add_attrib(format, "color", GL_FLOAT, 4, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
/* mult */
for (a = 0; a < 7; a++) {
mul_v2_fl(vec[a], rad);
}
BLI_assert(mode != GL_POLYGON);
/* '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(mode, 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();
}
/* 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, 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);
}
BLI_assert(mode != GL_POLYGON);
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
unsigned color = add_attrib(format, "color", GL_FLOAT, 4, KEEP_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(mode, 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();
}
/* plain antialiased unfilled rectangle */
void UI_draw_roundbox_unfilled(float minx, float miny, float maxx, float maxy, float rad, const float color[4])
{
float col[4];
copy_v4_v4(col, color);
if (roundboxtype & UI_RB_ALPHA) {
col[3] = 0.5;
}
/* set antialias line */
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
UI_draw_roundbox_gl_mode(GL_LINE_LOOP, minx, miny, maxx, maxy, rad, col);
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, const float color[4])
{
ui_draw_anti_roundbox(GL_TRIANGLE_FAN, minx, miny, maxx, maxy, rad, roundboxtype & UI_RB_ALPHA, color);
}
void UI_draw_text_underline(int pos_x, int pos_y, int len, int height, const float color[4])
{
int ofs_y = 4 * U.pixelsize;
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_INT, 2, CONVERT_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 ************* */
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(0.0f, 0.0f, 0.0f, 0.0f);
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 parameter is a GL_FLOAT, 2, KEEP_FLOAT vertex attrib
* The next 4 parameters are the offsets for the view, not the zones.
*/
void UI_draw_safe_areas(
unsigned 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);
bool is_first = true;
for (int i = 0; i < safe_len; i++) {
if (safe_areas[i][0] || safe_areas[i][1]) {
if (is_first) {
immUniformThemeColorBlend(TH_VIEW_OVERLAY, TH_BACK, 0.25f);
is_first = false;
}
float margin_x = safe_areas[i][0] * size_x_half;
float margin_y = safe_areas[i][1] * size_y_half;
float minx = x1 + margin_x;
float miny = y1 + margin_y;
float maxx = x2 - margin_x;
float maxy = y2 - margin_y;
imm_draw_line_box(pos, minx, miny, maxx, maxy);
}
}
}
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 */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
float color[4] = {0.0f, 0.0f, 0.0f, 0.5f};
UI_draw_roundbox_gl_mode(GL_LINE_LOOP, 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,
unsigned int pos_attrib)
{
float color[4] = {r, g, b, alpha};
/* that can happen */
if (res == 0)
return;
glEnable(GL_LINE_SMOOTH);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
immUniformColor4fv(color);
if (is_line) {
/* curve outline */
glLineWidth(1.5);
immBegin(GL_LINE_STRIP, res);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attrib, x2, y + (data[i] * h));
}
immEnd();
}
else {
/* under the curve */
immBegin(GL_TRIANGLE_STRIP, res * 2);
immVertex2f(pos_attrib, x, y);
immVertex2f(pos_attrib, x, y + (data[0] * h));
for (int i = 1; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attrib, x2, y + (data[i] * h));
immVertex2f(pos_attrib, x2, y);
}
immEnd();
/* curve outline */
immUniformColor4f(0.0f, 0.0f, 0.0f, 0.25f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
immBegin(GL_LINE_STRIP, res);
for (int i = 0; i < res; i++) {
float x2 = x + i * (w / (float)res);
immVertex2f(pos_attrib, x2, y + (data[i] * h));
}
immEnd();
}
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);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* 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));
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_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);
}
imm_draw_line(pos, rect.xmin, rect.ymin + fac * h, rect.xmax, rect.ymin + fac * h);
imm_draw_line(pos, 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, pos);
}
else if (hist->mode == HISTO_MODE_ALPHA) {
histogram_draw_one(1.0, 1.0, 1.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_a, res, is_line, pos);
}
else {
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_R)
histogram_draw_one(1.0, 0.0, 0.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_r, res, is_line, pos);
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_G)
histogram_draw_one(0.0, 1.0, 0.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_g, res, is_line, pos);
if (hist->mode == HISTO_MODE_RGB || hist->mode == HISTO_MODE_B)
histogram_draw_one(0.0, 0.0, 1.0, 0.75, rect.xmin, rect.ymin, w, h, hist->data_b, res, is_line, pos);
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
}
#undef HISTOGRAM_TOT_GRID_LINES
static void waveform_draw_one(float *waveform, int nbr, const float col[3])
{
VertexFormat format = {0};
unsigned int pos_id = add_attrib(&format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
VertexBuffer *vbo = VertexBuffer_create_with_format(&format);
VertexBuffer_allocate_data(vbo, nbr);
fillAttrib(vbo, pos_id, waveform);
/* TODO store the Batch inside the scope */
Batch *batch = Batch_create(GL_POINTS, vbo, NULL);
Batch_set_builtin_program(batch, GPU_SHADER_2D_UNIFORM_COLOR);
Batch_Uniform4f(batch, "color", col[0], col[1], col[2], 1.0f);
Batch_draw(batch);
Batch_discard_all(batch);
}
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) * 0.5f;
float w3 = w / 3.0f;
/* log scale for alpha */
float alpha = scopes->wavefrm_alpha * scopes->wavefrm_alpha;
unit_m3(colors);
for (int c = 0; c < 3; c++) {
for (int i = 0; i < 3; i++) {
colors_alpha[c][i] = colors[c][i] * alpha;
colorsycc_alpha[c][i] = colorsycc[c][i] * alpha;
}
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* 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));
/* 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);
}
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.08f);
/* draw grid lines here */
for (int i = 0; i < 6; i++) {
imm_draw_line(pos, rect.xmin + 22, yofs + (i * 0.2f) * h, rect.xmax + 1, yofs + (i * 0.2f) * h);
}
/* 3 vertical separation */
if (scopes->wavefrm_mode != SCOPES_WAVEFRM_LUMA) {
for (int i = 1; i < 3; i++) {
imm_draw_line(pos, rect.xmin + i * w3, rect.ymin, rect.xmin + i * w3, rect.ymax);
}
}
/* separate min max zone on the right */
imm_draw_line(pos, rect.xmin + w, rect.ymin, rect.xmin + w, rect.ymax);
/* 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)) {
imm_draw_line(pos, rect.xmin + 22, yofs + h * 16.0f / 255.0f, rect.xmax + 1, yofs + h * 16.0f / 255.0f);
imm_draw_line(pos, rect.xmin + 22, yofs + h * 235.0f / 255.0f, rect.xmin + w3, yofs + h * 235.0f / 255.0f);
imm_draw_line(pos, rect.xmin + 3 * w3, yofs + h * 235.0f / 255.0f, rect.xmax + 1, yofs + h * 235.0f / 255.0f);
imm_draw_line(pos, 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)
imm_draw_line(pos, rect.xmin, yofs + h * 0.075f, rect.xmax + 1, yofs + h * 0.075f);
if (scopes->ok && scopes->waveform_1 != NULL) {
gpuMatrixBegin3D_legacy();
glBlendFunc(GL_ONE, GL_ONE);
glPointSize(1.0);
/* LUMA (1 channel) */
if (scopes->wavefrm_mode == SCOPES_WAVEFRM_LUMA) {
float col[3] = {alpha, alpha, alpha};
gpuPushMatrix();
gpuTranslate3f(rect.xmin, yofs, 0.0f);
gpuScale3f(w, h, 0.0f);
waveform_draw_one(scopes->waveform_1, scopes->waveform_tot, col);
gpuPopMatrix();
/* 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);
imm_draw_line(pos, rect.xmax - 3, min, rect.xmax - 3, max);
}
/* RGB (3 channel) */
else if (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB) {
gpuPushMatrix();
gpuTranslate3f(rect.xmin, yofs, 0.0f);
gpuScale3f(w, h, 0.0f);
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]);
gpuPopMatrix();
}
/* PARADE / YCC (3 channels) */
else if (ELEM(scopes->wavefrm_mode,
SCOPES_WAVEFRM_RGB_PARADE,
SCOPES_WAVEFRM_YCC_601,
SCOPES_WAVEFRM_YCC_709,
SCOPES_WAVEFRM_YCC_JPEG
))
{
int rgb = (scopes->wavefrm_mode == SCOPES_WAVEFRM_RGB_PARADE);
gpuPushMatrix();
gpuTranslate3f(rect.xmin, yofs, 0.0f);
gpuScale3f(w3, h, 0.0f);
waveform_draw_one(scopes->waveform_1, scopes->waveform_tot, (rgb) ? colors_alpha[0] : colorsycc_alpha[0]);
gpuTranslate3f(1.0f, 0.0f, 0.0f);
waveform_draw_one(scopes->waveform_2, scopes->waveform_tot, (rgb) ? colors_alpha[1] : colorsycc_alpha[1]);
gpuTranslate3f(1.0f, 0.0f, 0.0f);
waveform_draw_one(scopes->waveform_3, scopes->waveform_tot, (rgb) ? colors_alpha[2] : colorsycc_alpha[2]);
gpuPopMatrix();
}
/* 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);
imm_draw_line(pos, rect.xmin + w + 2 + c * 2, min, rect.xmin + w + 2 + c * 2, max);
}
}
gpuMatrixEnd();
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
glDisable(GL_BLEND);
}
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(unsigned int 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);
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(GL_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(GL_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(GL_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(GL_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(GL_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 *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 * 0.5f;
float centery = rect.ymin + h * 0.5f;
float diam = (w < h) ? w : h;
float alpha = scopes->vecscope_alpha * scopes->vecscope_alpha * scopes->vecscope_alpha;
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
float color[4];
UI_GetThemeColor4fv(TH_PREVIEW_BACK, color);
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rect.xmin - 1, rect.ymin - 1, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
/* 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));
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.08f);
/* draw grid elements */
/* cross */
imm_draw_line(pos, centerx - (diam * 0.5f) - 5, centery, centerx + (diam * 0.5f) + 5, centery);
imm_draw_line(pos, centerx, centery - (diam * 0.5f) - 5, centerx, centery + (diam * 0.5f) + 5);
/* circles */
for (int j = 0; j < 5; j++) {
const int increment = 15;
immBegin(GL_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);
imm_draw_line(pos, polar_to_x(centerx, diam, 0.5f, skin_rad), polar_to_y(centery, diam, 0.5f, skin_rad),
polar_to_x(centerx, diam, 0.1f, skin_rad), polar_to_y(centery, diam, 0.1f, skin_rad));
/* saturation points */
for (int i = 0; i < 6; i++)
vectorscope_draw_target(pos, centerx, centery, diam, colors[i]);
if (scopes->ok && scopes->vecscope != NULL) {
/* pixel point cloud */
float col[3] = {alpha, alpha, alpha};
glBlendFunc(GL_ONE, GL_ONE);
glPointSize(1.0);
gpuMatrixBegin3D_legacy();
gpuPushMatrix();
gpuTranslate3f(centerx, centery, 0.0f);
gpuScale3f(diam, diam, 0.0f);
waveform_draw_one(scopes->vecscope, scopes->waveform_tot, col);
gpuPopMatrix();
gpuMatrixEnd();
}
immUnbindProgram();
/* outline */
draw_scope_end(&rect, scissor);
glDisable(GL_BLEND);
}
static void ui_draw_colorband_handle_tri_hlight(unsigned int pos, float x1, float y1, float halfwidth, float height)
{
glEnable(GL_LINE_SMOOTH);
immBegin(GL_LINE_STRIP, 3);
immVertex2f(pos, x1 + halfwidth, y1);
immVertex2f(pos, x1, y1 + height);
immVertex2f(pos, x1 - halfwidth, y1);
immEnd();
glDisable(GL_LINE_SMOOTH);
}
static void ui_draw_colorband_handle_tri(unsigned int pos, float x1, float y1, float halfwidth, float height, bool fill)
{
glEnable(fill ? GL_POLYGON_SMOOTH : GL_LINE_SMOOTH);
immBegin(fill ? GL_TRIANGLES : GL_LINE_LOOP, 3);
immVertex2f(pos, x1 + halfwidth, y1);
immVertex2f(pos, x1, y1 + height);
immVertex2f(pos, x1 - halfwidth, y1);
immEnd();
glDisable(fill ? GL_POLYGON_SMOOTH : GL_LINE_SMOOTH);
}
static void ui_draw_colorband_handle_box(unsigned int pos, float x1, float y1, float x2, float y2, bool fill)
{
immBegin(fill ? GL_QUADS : GL_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(
unsigned int pos, const rcti *rect, float x,
const float rgb[3], struct ColorManagedDisplay *display,
bool active)
{
const float sizey = BLI_rcti_size_y(rect);
const float min_width = 3.0f;
float colf[3] = {UNPACK3(rgb)};
float half_width = floorf(sizey / 3.5f);
float height = half_width * 1.4f;
float y1 = rect->ymin + (sizey * 0.16f);
float y2 = rect->ymax;
/* align to pixels */
x = floorf(x + 0.5f);
y1 = floorf(y1 + 0.5f);
if (active || half_width < min_width) {
immUniformColor3ub(0, 0, 0);
immBegin(GL_LINES, 2);
immVertex2f(pos, x, y1);
immVertex2f(pos, x, y2);
immEnd();
setlinestyle(active ? 2 : 1);
immUniformColor3ub(200, 200, 200);
immBegin(GL_LINES, 2);
immVertex2f(pos, x, y1);
immVertex2f(pos, x, y2);
immEnd();
setlinestyle(0);
/* 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(pos, x - half_width, y1 - 1, x + half_width, y1 + height, false);
/* draw all triangles blended */
glEnable(GL_BLEND);
ui_draw_colorband_handle_tri(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(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(pos, x, y1 + height - 1, (half_width - 1), (half_width - 1));
immUniformColor3ub(0, 0, 0);
ui_draw_colorband_handle_tri_hlight(pos, x, y1 + height, half_width, half_width);
glDisable(GL_BLEND);
immUniformColor3ub(128, 128, 128);
ui_draw_colorband_handle_box(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(pos, 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;
unsigned int position, color;
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 * 0.25f;
float y1 = rect->ymin;
VertexFormat *format = immVertexFormat();
position = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_CHECKER);
/* Drawing the checkerboard. */
immUniform4f("color1", UI_ALPHA_CHECKER_DARK / 255.0f, UI_ALPHA_CHECKER_DARK / 255.0f, UI_ALPHA_CHECKER_DARK / 255.0f, 1.0f);
immUniform4f("color2", UI_ALPHA_CHECKER_LIGHT / 255.0f, UI_ALPHA_CHECKER_LIGHT / 255.0f, UI_ALPHA_CHECKER_LIGHT / 255.0f, 1.0f);
immUniform1i("size", 8);
immRectf(position, x1, y1, x1 + sizex, rect->ymax);
immUnbindProgram();
/* New format */
format = immVertexFormat();
position = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
color = add_attrib(format, "color", GL_FLOAT, 4, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
/* layer: color ramp */
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;
immBegin(GL_TRIANGLE_STRIP, (sizex + 1) * 2);
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;
immAttrib4fv(color, colf);
immVertex2fv(position, v1);
immVertex2fv(position, v2);
}
immEnd();
/* layer: color ramp without alpha for reference when manipulating ramp properties */
v1[1] = y1;
v2[1] = y1 + sizey_solid;
immBegin(GL_TRIANGLE_STRIP, (sizex + 1) * 2);
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;
immAttrib4f(color, colf[0], colf[1], colf[2], 1.0f);
immVertex2fv(position, v1);
immVertex2fv(position, v2);
}
immEnd();
immUnbindProgram();
glDisable(GL_BLEND);
/* New format */
format = immVertexFormat();
position = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* layer: box outline */
immUniformColor4f(0.0f, 0.0f, 0.0f, 1.0f);
imm_draw_line_box(position, x1, y1, x1 + sizex, rect->ymax);
/* layer: box outline */
glEnable(GL_BLEND);
immUniformColor4f(0.0f, 0.0f, 0.0f, 0.5f);
imm_draw_line(position, x1, y1, x1 + sizex, y1);
immUniformColor4f(1.0f, 1.0f, 1.0f, 0.25f);
imm_draw_line(position, 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(position, 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(position, rect, pos, &cbd->r, display, true);
}
immUnbindProgram();
}
void ui_draw_but_UNITVEC(uiBut *but, uiWidgetColors *wcol, const rcti *rect)
{
/* sphere color */
float diffuse[3] = {1.0f, 1.0f, 1.0f};
float light[3];
float size;
/* backdrop */
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode_3ubAlpha(GL_TRIANGLE_FAN, rect->xmin, rect->ymin, rect->xmax, rect->ymax, 5.0f, (unsigned char *)wcol->inner, 255);
glCullFace(GL_BACK);
glEnable(GL_CULL_FACE);
/* setup lights */
ui_but_v3_get(but, light);
/* transform to button */
gpuMatrixBegin3D_legacy();
gpuPushMatrix();
if (BLI_rcti_size_x(rect) < BLI_rcti_size_y(rect))
size = 0.5f * BLI_rcti_size_x(rect);
else
size = 0.5f * BLI_rcti_size_y(rect);
gpuTranslate3f(rect->xmin + 0.5f * BLI_rcti_size_x(rect), rect->ymin + 0.5f * BLI_rcti_size_y(rect), 0.0f);
gpuScale3f(size, size, size);
Batch *sphere = Batch_get_sphere(2);
Batch_set_builtin_program(sphere, GPU_SHADER_SIMPLE_LIGHTING);
Batch_Uniform4f(sphere, "color", diffuse[0], diffuse[1], diffuse[2], 1.0f);
Batch_Uniform3fv(sphere, "light", light);
Batch_draw(sphere);
/* restore */
glDisable(GL_CULL_FACE);
/* AA circle */
VertexFormat *format = immVertexFormat();
unsigned int pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv((unsigned char *)wcol->inner);
glEnable(GL_BLEND);
glEnable(GL_LINE_SMOOTH);
imm_draw_lined_circle(pos, 0.0f, 0.0f, 1.0f, 32);
glDisable(GL_BLEND);
glDisable(GL_LINE_SMOOTH);
/* matrix after circle */
gpuPopMatrix();
gpuMatrixEnd();
immUnbindProgram();
}
static void ui_draw_but_curve_grid(unsigned int pos, const rcti *rect, float zoomx, float zoomy, float offsx, float offsy, float step)
{
float dx = step * zoomx;
float fx = rect->xmin + zoomx * (-offsx);
if (fx > rect->xmin) fx -= dx * (floorf(fx - rect->xmin));
float dy = step * zoomy;
float fy = rect->ymin + zoomy * (-offsy);
if (fy > rect->ymin) fy -= dy * (floorf(fy - rect->ymin));
float line_count = floorf((rect->xmax - fx) / dx) + 1.0f +
floorf((rect->ymax - fy) / dy) + 1.0f;
immBegin(GL_LINES, (int)line_count * 2);
while (fx < rect->xmax) {
immVertex2f(pos, fx, rect->ymin);
immVertex2f(pos, fx, rect->ymax);
fx += dx;
}
while (fy < rect->ymax) {
immVertex2f(pos, rect->xmin, fy);
immVertex2f(pos, rect->xmax, fy);
fy += dy;
}
immEnd();
}
static void gl_shaded_color(unsigned char *col, int shade)
{
immUniformColor3ub(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);
/* Do this first to not mess imm context */
if (but->a1 == UI_GRAD_H) {
/* magic trigger for curve backgrounds */
float col[3] = {0.0f, 0.0f, 0.0f}; /* dummy arg */
rcti grid = {
.xmin = rect->xmin + zoomx * (-offsx),
.xmax = grid.xmin + zoomx,
.ymin = rect->ymin + zoomy * (-offsy),
.ymax = grid.ymin + zoomy
};
ui_draw_gradient(&grid, col, UI_GRAD_H, 1.0f);
}
glLineWidth(1.0f);
VertexFormat *format = immVertexFormat();
unsigned int pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
/* backdrop */
if (but->a1 == UI_GRAD_H) {
/* grid, hsv uses different grid */
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
immUniformColor4ub(0, 0, 0, 48);
ui_draw_but_curve_grid(pos, 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);
immRectf(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUniformColor3ubv((unsigned char *)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 {
immUniformColor3ubv((unsigned char *)wcol->inner);
immRectf(pos, 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(pos, 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(pos, rect, zoomx, zoomy, offsx, offsy, 1.0f);
/* axes */
gl_shaded_color((unsigned char *)wcol->inner, -50);
immBegin(GL_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(GL_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(GL_LINES, 2); /* will draw one of the following 3 lines */
if (but->a1 == UI_GRAD_H) {
float tsample[3];
float hsv[3];
linearrgb_to_srgb_v3_v3(tsample, cumap->sample);
rgb_to_hsv_v(tsample, hsv);
immUniformColor3ub(240, 240, 240);
immVertex2f(pos, rect->xmin + zoomx * (hsv[0] - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (hsv[0] - offsx), rect->ymax);
}
else if (cumap->cur == 3) {
float lum = IMB_colormanagement_get_luminance(cumap->sample);
immUniformColor3ub(240, 240, 240);
immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (lum - offsx), rect->ymax);
}
else {
if (cumap->cur == 0)
immUniformColor3ub(240, 100, 100);
else if (cumap->cur == 1)
immUniformColor3ub(100, 240, 100);
else
immUniformColor3ub(100, 100, 240);
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymin);
immVertex2f(pos, rect->xmin + zoomx * (cumap->sample[cumap->cur] - offsx), rect->ymax);
}
immEnd();
}
/* the curve */
immUniformColor3ubv((unsigned char *)wcol->item);
glEnable(GL_LINE_SMOOTH);
glEnable(GL_BLEND);
immBegin(GL_LINE_STRIP, (CM_TABLE+1) + 2);
if (cuma->table == NULL)
curvemapping_changed(cumap, false);
CurveMapPoint *cmp = cuma->table;
/* first point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
immVertex2f(pos, 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]);
immVertex2f(pos, 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);
immVertex2f(pos, fx, fy);
}
/* last point */
if ((cuma->flag & CUMA_EXTEND_EXTRAPOLATE) == 0) {
immVertex2f(pos, 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]);
immVertex2f(pos, fx, fy);
}
immEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
immUnbindProgram();
/* the points, use aspect to make them visible on edges */
format = immVertexFormat();
pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
unsigned int col = add_attrib(format, "color", GL_FLOAT, 4, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_FLAT_COLOR);
cmp = cuma->curve;
glPointSize(3.0f);
immBegin(GL_POINTS, cuma->totpoint);
for (int a = 0; a < cuma->totpoint; a++) {
float color[4];
if (cmp[a].flag & CUMA_SELECT)
UI_GetThemeColor4fv(TH_TEXT_HI, color);
else
UI_GetThemeColor4fv(TH_TEXT, color);
float fx = rect->xmin + zoomx * (cmp[a].x - offsx);
float fy = rect->ymin + zoomy * (cmp[a].y - offsy);
immAttrib4fv(col, color);
immVertex2f(pos, fx, fy);
}
immEnd();
immUnbindProgram();
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
/* outline */
format = immVertexFormat();
pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor3ubv((unsigned char *)wcol->outline);
imm_draw_line_box(pos, rect->xmin, rect->ymin, rect->xmax, rect->ymax);
immUnbindProgram();
}
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) {
float color[4] = {0.7f, 0.3f, 0.3f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, 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) {
gpuMatrixBegin3D_legacy();
gpuPushMatrix();
/* 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;
float img_col[4] = {1.0f, 1.0f, 1.0f, 1.0f};
float col_sel[4], col_outline[4];
if (scopes->use_track_mask) {
float color[4] = {0.0f, 0.0f, 0.0f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
}
immDrawPixelsTex(rect.xmin, rect.ymin + 1, drawibuf->x, drawibuf->y, GL_RGBA, GL_UNSIGNED_BYTE, GL_LINEAR, drawibuf->rect, 1.0f, 1.0f, img_col);
/* draw cross for pixel position */
gpuTranslate3f(rect.xmin + scopes->track_pos[0], rect.ymin + scopes->track_pos[1], 0.0f);
glScissor(ar->winrct.xmin + rect.xmin,
ar->winrct.ymin + rect.ymin,
BLI_rctf_size_x(&rect),
BLI_rctf_size_y(&rect));
VertexFormat *format = immVertexFormat();
unsigned int pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
unsigned int col = add_attrib(format, "color", GL_FLOAT, 4, KEEP_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(GL_LINES, 7*2*2);
float pos_sel[8] = {-10.0f, -7.0f, -4.0f, -1.0f, 2.0f, 5.0f, 8.0f, 11.0f};
for (int axe = 0; axe < 2; ++axe) {
for (int i = 0; i < 7; ++i) {
float x1 = pos_sel[i] * (1 - axe);
float y1 = pos_sel[i] * axe;
float x2 = pos_sel[i+1] * (1 - axe);
float y2 = pos_sel[i+1] * axe;
if (i % 2 == 1)
immAttrib4fv(col, col_sel);
else
immAttrib4fv(col, col_outline);
immVertex2f(pos, x1, y1);
immVertex2f(pos, x2, y2);
}
}
immEnd();
immUnbindProgram();
}
gpuPopMatrix();
gpuMatrixEnd();
ok = true;
}
if (!ok) {
float color[4] = {0.0f, 0.0f, 0.0f, 0.3f};
UI_draw_roundbox_corner_set(UI_CNR_ALL);
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rect.xmin - 1, rect.ymin, rect.xmax + 1, rect.ymax + 1, 3.0f, color);
}
/* 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));
float x = 0.5f * (recti->xmin + recti->xmax);
float y = 0.5f * (recti->ymin + recti->ymax);
VertexFormat *format = immVertexFormat();
unsigned int pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_UNIFORM_COLOR);
immUniformColor4ubv(but->col);
glEnable(GL_BLEND);
immBegin(GL_TRIANGLE_FAN, 16);
for (int a = 0; a < 16; a++)
immVertex2f(pos, x + size * si[a], y + size * co[a]);
immEnd();
immUniformColor4ub(0, 0, 0, 150);
glLineWidth(1);
glEnable(GL_LINE_SMOOTH);
immBegin(GL_LINE_LOOP, 16);
for (int a = 0; a < 16; a++)
immVertex2f(pos, x + size * si[a], y + size * co[a]);
immEnd();
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
immUnbindProgram();
/* restore scissortest */
glScissor(scissor[0], scissor[1], scissor[2], scissor[3]);
}
/* ****************************************************** */
static void ui_shadowbox(unsigned pos, unsigned color, float minx, float miny, float maxx, float maxy, float shadsize, unsigned char alpha)
{
/* right quad */
immAttrib4ub(color, 0, 0, 0, alpha);
immVertex2f(pos, maxx, miny);
immVertex2f(pos, maxx, maxy - 0.3f * shadsize);
immAttrib4ub(color, 0, 0, 0, 0);
immVertex2f(pos, maxx + shadsize, maxy - 0.75f * shadsize);
immVertex2f(pos, maxx + shadsize, miny);
/* corner shape */
immAttrib4ub(color, 0, 0, 0, alpha);
immVertex2f(pos, maxx, miny);
immAttrib4ub(color, 0, 0, 0, 0);
immVertex2f(pos, maxx + shadsize, miny);
immVertex2f(pos, maxx + 0.7f * shadsize, miny - 0.7f * shadsize);
immVertex2f(pos, maxx, miny - shadsize);
/* bottom quad */
immAttrib4ub(color, 0, 0, 0, alpha);
immVertex2f(pos, minx + 0.3f * shadsize, miny);
immVertex2f(pos, maxx, miny);
immAttrib4ub(color, 0, 0, 0, 0);
immVertex2f(pos, maxx, miny - shadsize);
immVertex2f(pos, 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);
VertexFormat *format = immVertexFormat();
unsigned pos = add_attrib(format, "pos", GL_FLOAT, 2, KEEP_FLOAT);
unsigned color = add_attrib(format, "color", GL_UNSIGNED_BYTE, 4, NORMALIZE_INT_TO_FLOAT);
immBindBuiltinProgram(GPU_SHADER_2D_SMOOTH_COLOR);
immBegin(GL_QUADS, 36);
/* 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();
glDisable(GL_BLEND);
}
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;
}
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 */
float color[4] = {0.0f, 0.0f, 0.0f, calpha};
UI_draw_roundbox_gl_mode(GL_TRIANGLE_FAN, rct->xmin - a, rct->ymin - a, rct->xmax + a, rct->ymax - 10.0f + a, rad + a, color);
calpha += dalpha;
}
/* outline emphasis */
glEnable(GL_LINE_SMOOTH);
float color[4] = {0.0f, 0.0f, 0.0f, 0.4f};
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, color);
glDisable(GL_LINE_SMOOTH);
glDisable(GL_BLEND);
}
/**
* Reset GL state (keep minimal).
*
* \note Blender's internal code doesn't assume these are reset,
* but external callbacks may depend on their state.
*/
void UI_reinit_gl_state(void)
{
glLineWidth(1.0f);
glPointSize(1.0f);
}
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