mirror of https://github.com/BOINC/boinc.git
234 lines
6.2 KiB
C++
234 lines
6.2 KiB
C++
// This file is part of BOINC.
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// http://boinc.berkeley.edu
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// Copyright (C) 2008 University of California
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//
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// BOINC is free software; you can redistribute it and/or modify it
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// under the terms of the GNU Lesser General Public License
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// as published by the Free Software Foundation,
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// either version 3 of the License, or (at your option) any later version.
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//
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// BOINC is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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// See the GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with BOINC. If not, see <http://www.gnu.org/licenses/>.
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// various utility classes for OpenGL programming,
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// used in Astropulse and SETI@home
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// See also graphics_data.C,h
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#ifndef GUTIL_H
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#define GUTIL_H
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#include <cstdio>
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#include <cstdlib>
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#include <cstring>
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struct COLOR {
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float r;
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float g;
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float b;
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float a;
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COLOR(float rr=0,float gg=0, float bb=0, float aa=0) : r(rr),g(gg),b(bb),a(aa) {};
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};
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extern void HLStoRGB( double H, double L, double S, COLOR& c);
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extern void scale_screen(int w,int h);
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extern void center_screen(int w,int h);
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extern void drawSphere(float* pos, float rad);
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extern void drawCylinder(bool vertical, float* pos, float len, float rad);
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#define TEXT_LEFT 0
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#define TEXT_CENTER 1
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#define TEXT_RIGHT 2
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extern void draw_text_line(
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float* pos, float height, float width, const char *text,
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int justify=TEXT_LEFT
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);
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void draw_text_simple(const char* text,float line_width,float char_height);
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extern void draw_text(
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float* pos, float height, float width, float spacing, const char *text
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);
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extern void draw_text_new(
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float* pos, float height, float width, float spacing, const char *text
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);
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extern void draw_text_right(
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float* pos, float height, float width, float spacing, const char *text
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);
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extern void draw_text_new_3d(
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float* pos, float height, float width, float spacing, const char *text
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);
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extern void draw_rotated_text(
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float* pos, float height, float width, float spacing, const char *text, float rotation, float* rotation_vector
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);
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extern float text_width(const char* text);
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extern float text_width_new(const char* text);
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extern void draw_text_panel(
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float* _pos, float* size, float margin, COLOR color,
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float char_height, float line_width, float line_spacing,
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const char* text
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);
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extern void mode_texture();
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extern void mode_ortho();
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extern void mode_shaded(float*);
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extern void mode_unshaded();
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extern void mode_lines();
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extern void ortho_done();
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extern bool get_matrix(double src[16]);
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extern bool get_projection(double src[16]);
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extern bool get_viewport(int view[4]);
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extern void get_2d_positions(double p1, double p2, double p3,
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double model[16], double proj[16], int viewport[4], double proj_pos[3]
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);
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// a progress bar represented as an opaque cylinder within a translucent cylinder
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//
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class PROGRESS {
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float color[4], inner_color[4];
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float len, rad, inner_rad;
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public:
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float pos[3];
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void init(float* pos, float len, float diam, float inner, float* c, float* ic);
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void draw(float);
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PROGRESS() : len(0), rad(0), inner_rad(0) {
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memset(color,0,sizeof(color));
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memset(inner_color,0,sizeof(inner_color));
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memset(pos,0,sizeof(pos));
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};
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};
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//2d progress bar
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class PROGRESS_2D {
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float color[4], inner_color[4];
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float len, width, inner_width;
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float pos[3];
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public:
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void set_pos(float*);
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void init(float* pos, float len, float width, float inner_width, float* c, float* ic);
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void draw(float);
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PROGRESS_2D() : len(0), width(0), inner_width(0) {
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memset(color,0,sizeof(color));
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memset(inner_color,0,sizeof(inner_color));
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memset(pos,0,sizeof(pos));
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};
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};
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// a graph of a function of 1 variable drawn as a ribbon in 3D
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//
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class RIBBON_GRAPH {
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float size[3];
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float color[4], tick_color[4];
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float *data, dmax;
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float tick_yfrac;
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float ticks[3];
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int len;
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void draw_x(int);
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void draw_y(int);
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void draw_tick(int i);
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float pos[3];
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public:
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void set_pos(float*);
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void init(float* pos, float* size, float* color, float* tick_color, float tick_yfrac=0.2);
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void draw(float* data, int len, bool with_ticks=false);
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void add_tick(float x, int index);
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};
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#define PANEL_MAX_LINES 10
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// a colored panel with some text, that can move cyclically
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//
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class MOVING_TEXT_PANEL {
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float base_pos[3];
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float theta;
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float dtheta;
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COLOR color;
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float char_height;
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float line_width;
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float line_spacing;
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float size[3];
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double margin;
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char text[PANEL_MAX_LINES][256];
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public:
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MOVING_TEXT_PANEL();
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float pos[3];
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void init(float* pos, float* size, COLOR& color, double dtheta, double ch, double lw, double ls, double margin);
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void draw();
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void set_text(int lineno, const char* t);
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void get_pos(int lineno, float* pos);
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static void sort(MOVING_TEXT_PANEL* tp, int n);
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void move(double dt);
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};
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// ----- STARFIELDS
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//
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// stars have their own coord system
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// x = -1..1
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// y = -1..1
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// z = 0..zmax
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// the projection plane is z=1,
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// and the square +- 1/zmax is mapped to the window
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//
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struct STAR {
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double x, y, z;
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};
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class STARFIELD {
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double zmax, zmaxinv;
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double speed;
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int nstars;
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void replace_star(int);
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STAR* stars;
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public:
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STARFIELD();
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void build_stars(int, float);
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void update_stars(float);
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};
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// ----- TEXTURES AND IMAGES
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#define ALIGN_BOTTOM 0
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#define ALIGN_CENTER 1
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#define ALIGN_TOP 2
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unsigned int* read_rgb_texture (const char *, int*, int* ,int *);
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struct TEXTURE_DESC {
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bool present;
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unsigned int id;
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double xsize; // size of underlying image
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double ysize;
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TEXTURE_DESC() : present(false),id(0),xsize(0),ysize(0) {};
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void draw(float* pos, float* size, int xalign, int yalign, float alpha=1.);
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int load_image_file(const char* filename);
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int CreateTextureJPG(const char* strFileName);
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int CreateTextureBMP(const char* strFileName);
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int CreateTexturePPM(const char* strFileName);
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int CreateTextureTGA(const char* strFileName);
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};
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// ----- FONTS
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//
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extern unsigned int listBase;
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extern unsigned int MyCreateFont(const char *fontName, int Size,int weight);
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extern void print_text(const char* string);
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#endif
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