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602 lines
17 KiB
C
602 lines
17 KiB
C
#include "demo.h"
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#include <pthread.h>
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// we provide a heads-up display throughout the demo, detailing the demos we're
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// about to run, running, and just runned. the user can move this HUD with
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// their mouse. it should always be on the top of the z-stack, unless hidden.
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struct ncplane* hud = NULL;
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static struct elem* elems; // tracks the last n demos
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static bool hud_hidden;
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static bool plot_hidden;
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static struct ncuplot* plot;
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static uint64_t plottimestart;
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// while the HUD is grabbed by the mouse, these are set to the position where
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// the grab started. they are reset once the HUD is released.
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static int hud_grab_x = -1;
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static int hud_grab_y = -1;
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// position of the HUD *when grab started*
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static int hud_pos_x;
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static int hud_pos_y;
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// while the plot is grabbed by the mouse, these are set to the position where
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// the grab started. they are reset once the plot is released.
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static int plot_grab_y = -1;
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// position of the plot *when grab started*
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static int plot_pos_y;
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// how many columns for runtime?
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#define HUD_ROWS (3 + 2) // 2 for borders
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static const int HUD_COLS = 23 + 2; // 2 for borders
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typedef struct elem {
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char* name;
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uint64_t startns;
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uint64_t totalns;
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unsigned frames;
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struct elem* next;
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} elem;
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static struct ncmenu* menu;
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static struct ncplane* about; // "about" modal popup
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#define MENUSTR_TOGGLE_HUD "Toggle HUD"
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#define MENUSTR_TOGGLE_PLOT "Toggle FPS plot"
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#define MENUSTR_RESTART "Restart"
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#define MENUSTR_ABOUT "About"
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#define MENUSTR_QUIT "Quit"
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static int
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hud_standard_bg(struct ncplane* n){
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uint64_t channels = 0;
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channels_set_fg_alpha(&channels, CELL_ALPHA_BLEND);
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channels_set_fg_rgb(&channels, 0x80, 0x80, 0x80);
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channels_set_bg_alpha(&channels, CELL_ALPHA_BLEND);
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channels_set_bg_rgb(&channels, 0x80, 0x80, 0x80);
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if(ncplane_set_base(n, "", 0, channels) >= 0){
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return -1;
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}
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return 0;
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}
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static void
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about_toggle(struct notcurses* nc){
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ncmenu_rollup(menu);
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if(about){
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ncplane_destroy(about);
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about = NULL;
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return;
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}
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const int ABOUT_ROWS = 9;
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const int ABOUT_COLS = 40;
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int dimy;
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notcurses_term_dim_yx(nc, &dimy, NULL);
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struct ncplane* n = ncplane_aligned(notcurses_stdplane(nc), ABOUT_ROWS,
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ABOUT_COLS, 3, NCALIGN_CENTER, NULL);
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// let the glyphs below show through, but only dimly
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uint64_t channels = 0;
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channels_set_fg_alpha(&channels, CELL_ALPHA_BLEND);
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channels_set_fg_rgb(&channels, 0x0, 0x0, 0x0);
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channels_set_bg_alpha(&channels, CELL_ALPHA_BLEND);
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channels_set_bg_rgb(&channels, 0x0, 0x0, 0x0);
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if(ncplane_set_base(n, "", 0, channels) >= 0){
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ncplane_set_fg(n, 0x11ffff);
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ncplane_set_bg(n, 0);
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ncplane_set_bg_alpha(n, CELL_ALPHA_BLEND);
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ncplane_printf_aligned(n, 1, NCALIGN_CENTER, "notcurses-demo %s", notcurses_version());
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ncplane_printf_aligned(n, 3, NCALIGN_LEFT, " P toggle plot");
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ncplane_printf_aligned(n, 3, NCALIGN_RIGHT, "toggle help Ctrl+U ");
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ncplane_printf_aligned(n, 4, NCALIGN_LEFT, " H toggle HUD");
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ncplane_printf_aligned(n, 4, NCALIGN_RIGHT, "restart Ctrl+R ");
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ncplane_printf_aligned(n, 5, NCALIGN_CENTER, "q quit");
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ncplane_putstr_aligned(n, 7, NCALIGN_CENTER, "\u00a9 nick black <nickblack@linux.com>");
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cell ul = CELL_TRIVIAL_INITIALIZER, ur = CELL_TRIVIAL_INITIALIZER;
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cell lr = CELL_TRIVIAL_INITIALIZER, ll = CELL_TRIVIAL_INITIALIZER;
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cell hl = CELL_TRIVIAL_INITIALIZER, vl = CELL_TRIVIAL_INITIALIZER;
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channels = 0;
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channels_set_fg(&channels, 0xc020c0);
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channels_set_bg(&channels, 0);
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if(cells_double_box(n, NCSTYLE_NONE, channels, &ul, &ur, &ll, &lr, &hl, &vl) == 0){
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if(ncplane_perimeter(n, &ul, &ur, &ll, &lr, &hl, &vl, 0) == 0){
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cell_release(n, &ul); cell_release(n, &ur); cell_release(n, &hl);
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cell_release(n, &ll); cell_release(n, &lr); cell_release(n, &vl);
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about = n;
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return;
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}
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cell_release(n, &ul); cell_release(n, &ur); cell_release(n, &hl);
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cell_release(n, &ll); cell_release(n, &lr); cell_release(n, &vl);
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}
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}
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ncplane_destroy(n);
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}
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void about_destroy(struct notcurses* nc){
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if(about){
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about_toggle(nc);
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}
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}
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static void
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hud_toggle(struct notcurses* nc){
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ncmenu_rollup(menu);
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if(!hud){
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return;
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}
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hud_hidden = !hud_hidden;
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if(hud_hidden){
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ncplane_move_bottom(hud);
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}else{
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ncplane_move_top(hud);
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}
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demo_render(nc);
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}
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static int
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fpsplot_toggle(struct notcurses* nc){
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ncmenu_rollup(menu);
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if(!plot){
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return 0;
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}
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plot_hidden = !plot_hidden;
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if(plot_hidden){
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ncplane_move_bottom(ncuplot_plane(plot));
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}else{
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ncplane_move_top(ncuplot_plane(plot));
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}
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return demo_render(nc);
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}
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// returns true if the input was handled by the menu/HUD. 'q' is passed through
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// (we return false) so that it can interrupt a demo blocking on input.
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bool menu_or_hud_key(struct notcurses *nc, const struct ncinput *ni){
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struct ncinput tmpni;
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if(menu && ni->id == NCKEY_ENTER){
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const char* sel = ncmenu_selected(menu, &tmpni);
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if(sel == NULL){
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return false;
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}
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}else if(menu && ni->id == NCKEY_RELEASE){
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const char* sel = ncmenu_mouse_selected(menu, ni, &tmpni);
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if(sel == NULL){
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memcpy(&tmpni, ni, sizeof(tmpni));
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}
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}else{
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memcpy(&tmpni, ni, sizeof(tmpni));
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}
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// toggle the HUD
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if(tmpni.id == 'H' && !tmpni.alt && !tmpni.ctrl){
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hud_toggle(nc);
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return true;
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}
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if(tmpni.id == 'P' && !tmpni.alt && !tmpni.ctrl){
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fpsplot_toggle(nc);
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return true;
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}
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if(tmpni.id == 'U' && !tmpni.alt && tmpni.ctrl){
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about_toggle(nc);
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return true;
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}
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if(tmpni.id == 'R' && !tmpni.alt && tmpni.ctrl){
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if(menu){
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ncmenu_rollup(menu);
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}
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interrupt_and_restart_demos();
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return true;
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}
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if(tmpni.id == 'q' && !tmpni.alt && !tmpni.ctrl){
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if(menu){
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ncmenu_rollup(menu);
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}
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interrupt_demo();
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return false; // see comment above
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}
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if(!menu){
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return false;
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}
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if(ncmenu_offer_input(menu, ni)){
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return true;
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}else if(ni->id == 'o' && ni->alt && !ni->ctrl){
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ncmenu_unroll(menu, 0);
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return true;
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}else if(ni->id == 'h' && ni->alt && !ni->ctrl){
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ncmenu_unroll(menu, 2);
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return true;
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}
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return false;
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}
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struct ncmenu* menu_create(struct notcurses* nc){
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struct ncmenu_item demo_items[] = {
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{ .desc = MENUSTR_TOGGLE_HUD, .shortcut = { .id = 'H', }, },
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{ .desc = MENUSTR_TOGGLE_PLOT, .shortcut = { .id = 'P', }, },
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{ .desc = NULL, },
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{ .desc = MENUSTR_RESTART, .shortcut = { .id = 'R', .ctrl = true, }, },
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{ .desc = MENUSTR_QUIT, .shortcut = { .id = 'q', }, },
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};
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struct ncmenu_item help_items[] = {
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{ .desc = MENUSTR_ABOUT, .shortcut = { .id = 'U', .ctrl = true, }, },
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};
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struct ncmenu_section sections[] = {
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{ .name = "notcurses-demo", .items = demo_items,
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.itemcount = sizeof(demo_items) / sizeof(*demo_items),
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.shortcut = { .id = 'o', .alt = true, }, },
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{ .name = NULL, .items = NULL, .itemcount = 0, },
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{ .name = "help", .items = help_items,
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.itemcount = sizeof(help_items) / sizeof(*help_items),
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.shortcut = { .id = 'h', .alt = true, }, },
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};
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uint64_t headerchannels = 0;
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uint64_t sectionchannels = 0;
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channels_set_fg(§ionchannels, 0xffffff);
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channels_set_bg(§ionchannels, 0x000000);
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channels_set_fg_alpha(§ionchannels, CELL_ALPHA_HIGHCONTRAST);
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channels_set_bg_alpha(§ionchannels, CELL_ALPHA_BLEND);
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channels_set_fg(&headerchannels, 0xffffff);
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channels_set_bg(&headerchannels, 0x7f347f);
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channels_set_bg_alpha(&headerchannels, CELL_ALPHA_BLEND);
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const ncmenu_options mopts = {
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.sections = sections,
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.sectioncount = sizeof(sections) / sizeof(*sections),
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.headerchannels = headerchannels,
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.sectionchannels = sectionchannels,
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.flags = 0,
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};
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menu = ncmenu_create(notcurses_stdplane(nc), &mopts);
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return menu;
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}
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static int
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hud_refresh(struct ncplane* n){
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ncplane_erase(n);
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cell ul = CELL_TRIVIAL_INITIALIZER, ur = CELL_TRIVIAL_INITIALIZER;
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cell lr = CELL_TRIVIAL_INITIALIZER, ll = CELL_TRIVIAL_INITIALIZER;
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cell hl = CELL_TRIVIAL_INITIALIZER, vl = CELL_TRIVIAL_INITIALIZER;
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if(cells_double_box(n, NCSTYLE_NONE, 0, &ul, &ur, &ll, &lr, &hl, &vl)){
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return -1;
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}
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cell_set_fg(&ul, 0xc0f0c0);
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cell_set_fg(&ur, 0xc0f0c0);
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cell_set_fg(&ll, 0xc0f0c0);
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cell_set_fg(&lr, 0xc0f0c0);
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cell_set_fg(&hl, 0xc0f0c0);
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cell_set_fg(&vl, 0xc0f0c0);
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cell_set_bg(&ul, 0);
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cell_set_bg(&ur, 0);
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cell_set_bg(&ll, 0);
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cell_set_bg(&lr, 0);
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cell_set_bg(&hl, 0);
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cell_set_bg(&vl, 0);
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if(ncplane_perimeter(n, &ul, &ur, &ll, &lr, &hl, &vl, 0)){
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cell_release(n, &ul); cell_release(n, &ur); cell_release(n, &hl);
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cell_release(n, &ll); cell_release(n, &lr); cell_release(n, &vl);
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return -1;
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}
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cell_release(n, &ul); cell_release(n, &ur); cell_release(n, &hl);
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cell_release(n, &ll); cell_release(n, &lr); cell_release(n, &vl);
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return 0;
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}
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static int
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hud_print_finished(elem* list){
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elem* e = list;
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if(hud){
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hud_refresh(hud);
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}
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int line = 0;
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while(e){
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if(++line == HUD_ROWS - 1){
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if(e->next){
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free(e->next->name);
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free(e->next);
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e->next = NULL;
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}
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break;
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}
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if(hud){
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cell c = CELL_TRIVIAL_INITIALIZER;
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ncplane_base(hud, &c);
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ncplane_set_bg(hud, cell_bg(&c));
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ncplane_set_bg_alpha(hud, CELL_ALPHA_BLEND);
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ncplane_set_fg(hud, 0xffffff);
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ncplane_set_fg_alpha(hud, CELL_ALPHA_OPAQUE);
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cell_release(hud, &c);
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if(ncplane_printf_yx(hud, line, 1, "%d", e->frames) < 0){
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return -1;
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}
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if(ncplane_printf_yx(hud, line, 7, "%ju.%03jus", e->totalns / GIG,
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(e->totalns % GIG) / 1000000) < 0){
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return -1;
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}
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if(ncplane_putstr_yx(hud, line, 16, e->name) < 0){
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return -1;
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}
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}
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e = e->next;
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}
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return 0;
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}
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struct ncplane* hud_create(struct notcurses* nc){
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if(hud){
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return NULL;
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}
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int dimx, dimy;
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notcurses_term_dim_yx(nc, &dimy, &dimx);
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int yoffset = dimy - (6 + HUD_ROWS);
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struct ncplane* n = ncplane_new(nc, HUD_ROWS, HUD_COLS, yoffset, 1, NULL);
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if(n == NULL){
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return NULL;
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}
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hud_standard_bg(n);
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hud_refresh(n);
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ncplane_set_fg(n, 0xffffff);
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ncplane_set_bg(n, 0);
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ncplane_set_bg_alpha(n, CELL_ALPHA_BLEND);
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if(hud_hidden){
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ncplane_move_bottom(n);
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}
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return (hud = n);
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}
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int hud_destroy(void){
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int ret = 0;
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if(hud){
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ret = ncplane_destroy(hud);
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hud = NULL;
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}
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return ret;
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}
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// mouse has been pressed on the hud. the caller is responsible for rerendering.
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int hud_grab(int y, int x){
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int ret;
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if(hud == NULL || hud_hidden){
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return -1;
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}
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// are we in the middle of a grab?
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if(hud_grab_x >= 0 && hud_grab_y >= 0){
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int delty = y - hud_grab_y;
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int deltx = x - hud_grab_x;
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ret = ncplane_move_yx(hud, hud_pos_y + delty, hud_pos_x + deltx);
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}else{
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// new grab. stash point of original grab, and location of HUD at original
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// grab. any delta while grabbed (relative to the original grab point)
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// will see the HUD moved by delta (relative to the original HUD location).
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int ty = y, tx = x;
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// first, though, verify that we're clicking within the hud
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if(!ncplane_translate_abs(hud, &ty, &tx)){
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return -1;
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}
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hud_grab_x = x;
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hud_grab_y = y;
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ncplane_yx(hud, &hud_pos_y, &hud_pos_x);
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ret = 0;
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}
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return ret;
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}
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int hud_release(void){
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if(hud == NULL){
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return -1;
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}
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if(hud_grab_x < 0 && hud_grab_y < 0){
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return -1;
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}
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hud_grab_x = -1;
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hud_grab_y = -1;
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return hud_standard_bg(hud);
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}
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int fpsplot_release(void){
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if(plot == NULL){
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return -1;
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}
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if(plot_grab_y < 0){
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return -1;
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}
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plot_grab_y = -1;
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return hud_standard_bg(hud);
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}
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// currently running demo is always at y = HUD_ROWS-2
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int hud_completion_notify(const demoresult* result){
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if(elems){
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elems->totalns = result->timens;
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elems->frames = result->stats.renders;
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}
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return 0;
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}
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// inform the HUD of an upcoming demo
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int hud_schedule(const char* demoname){
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elem* cure = malloc(sizeof(*cure));
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if(!cure){
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return -1;
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}
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cure->next = elems;
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cure->name = strdup(demoname);
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cure->totalns = 0;
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cure->frames = 0;
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elems = cure;
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struct timespec cur;
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clock_gettime(CLOCK_MONOTONIC, &cur);
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cure->startns = timespec_to_ns(&cur);
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return hud_print_finished(elems);
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}
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// wake up every 100ms and render a frame so the HUD doesn't appear locked up.
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// provide an absolute deadline calculated via CLOCK_MONOTONIC.
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static int
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demo_nanosleep_abstime_ns(struct notcurses* nc, uint64_t deadline){
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struct timespec fsleep;
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struct timespec now;
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clock_gettime(CLOCK_MONOTONIC, &now);
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while(deadline > timespec_to_ns(&now)){
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fsleep.tv_sec = 0;
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fsleep.tv_nsec = GIG / 10;
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if(deadline - timespec_to_ns(&now) < GIG / 10){
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fsleep.tv_nsec = deadline - timespec_to_ns(&now);
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}
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ncinput ni;
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// throw away any input we receive. if it was for the menu or HUD, it was
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// already dispatched internally to demo_getc(). we need to ensure input
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// is being procesed, however, to drive the demo elements.
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demo_getc(nc, &fsleep, &ni);
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if(hud){
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int r = demo_render(nc);
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if(r){
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return r;
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}
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}
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clock_gettime(CLOCK_MONOTONIC, &now);
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}
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return 0;
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}
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int demo_nanosleep(struct notcurses* nc, const struct timespec *ts){
|
|
uint64_t deadline;
|
|
struct timespec now;
|
|
uint64_t nstotal = timespec_to_ns(ts);
|
|
clock_gettime(CLOCK_MONOTONIC, &now);
|
|
deadline = timespec_to_ns(&now) + nstotal;
|
|
return demo_nanosleep_abstime_ns(nc, deadline);
|
|
}
|
|
|
|
int demo_nanosleep_abstime(struct notcurses* nc, const struct timespec* abstime){
|
|
return demo_nanosleep_abstime_ns(nc, timespec_to_ns(abstime));
|
|
}
|
|
|
|
// FIXME needs to pass back any ncinput read, if requested...hrmmm
|
|
int demo_render(struct notcurses* nc){
|
|
if(interrupted){
|
|
return 1;
|
|
}
|
|
if(about){
|
|
ncplane_move_top(about);
|
|
}
|
|
struct timespec ts;
|
|
clock_gettime(CLOCK_MONOTONIC, &ts);
|
|
if(plot){
|
|
if(!plot_hidden){
|
|
ncplane_move_top(ncuplot_plane(plot));
|
|
}
|
|
uint64_t ns = (timespec_to_ns(&ts) - plottimestart) / GIG;
|
|
ncuplot_add_sample(plot, ns, 1);
|
|
}
|
|
if(menu){
|
|
ncplane_move_top(ncmenu_plane(menu));
|
|
}
|
|
if(hud){
|
|
if(!hud_hidden){
|
|
ncplane_move_top(hud);
|
|
}
|
|
uint64_t ns = timespec_to_ns(&ts) - elems->startns;
|
|
++elems->frames;
|
|
cell c = CELL_TRIVIAL_INITIALIZER;
|
|
ncplane_base(hud, &c);
|
|
ncplane_set_bg(hud, cell_bg(&c));
|
|
ncplane_set_bg_alpha(hud, CELL_ALPHA_BLEND);
|
|
ncplane_set_fg(hud, 0x80d0ff);
|
|
ncplane_set_fg_alpha(hud, CELL_ALPHA_OPAQUE);
|
|
cell_release(hud, &c);
|
|
ncplane_styles_on(hud, NCSTYLE_BOLD);
|
|
if(ncplane_printf_yx(hud, 1, 1, "%d", elems->frames) < 0){
|
|
return -1;
|
|
}
|
|
if(ncplane_printf_yx(hud, 1, 7, "%ju.%03jus", ns / GIG,
|
|
(ns % GIG) / 1000000) < 0){
|
|
return -1;
|
|
}
|
|
if(ncplane_putstr_yx(hud, 1, 16, elems->name) < 0){
|
|
return -1;
|
|
}
|
|
ncplane_styles_off(hud, NCSTYLE_BOLD);
|
|
}
|
|
ncinput ni;
|
|
char32_t id;
|
|
id = demo_getc_nblock(nc, &ni);
|
|
int ret = notcurses_render(nc);
|
|
if(ret){
|
|
return ret;
|
|
}
|
|
if(id == 'q'){
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int fpsgraph_init(struct notcurses* nc){
|
|
const int PLOTHEIGHT = 6;
|
|
int dimy, dimx;
|
|
notcurses_term_dim_yx(nc, &dimy, &dimx);
|
|
struct ncplane* newp = ncplane_new(nc, PLOTHEIGHT, dimx, dimy - PLOTHEIGHT, 0, NULL);
|
|
uint32_t style = 0;
|
|
uint64_t channels = 0;
|
|
channels_set_fg_alpha(&channels, CELL_ALPHA_BLEND);
|
|
channels_set_fg(&channels, 0x201020);
|
|
channels_set_bg_alpha(&channels, CELL_ALPHA_BLEND);
|
|
channels_set_bg(&channels, 0x201020);
|
|
ncplane_set_base(newp, "", style, channels);
|
|
ncplot_options opts;
|
|
memset(&opts, 0, sizeof(opts));
|
|
opts.flags = NCPLOT_OPTION_LABELTICKSD | NCPLOT_OPTION_EXPONENTIALD;
|
|
opts.legendstyle = NCSTYLE_ITALIC;
|
|
opts.title = "frames per second";
|
|
channels_set_fg_rgb(&opts.minchannels, 0x80, 0x80, 0xff);
|
|
channels_set_bg(&opts.minchannels, 0x201020);
|
|
channels_set_bg_alpha(&opts.minchannels, CELL_ALPHA_BLEND);
|
|
channels_set_fg_rgb(&opts.maxchannels, 0x80, 0xff, 0x80);
|
|
channels_set_bg(&opts.maxchannels, 0x201020);
|
|
channels_set_bg_alpha(&opts.maxchannels, CELL_ALPHA_BLEND);
|
|
struct ncuplot* fpsplot = ncuplot_create(newp, &opts, 0, 0);
|
|
if(!fpsplot){
|
|
ncplane_destroy(newp);
|
|
return EXIT_FAILURE;
|
|
}
|
|
plot = fpsplot;
|
|
struct timespec ts;
|
|
clock_gettime(CLOCK_MONOTONIC, &ts);
|
|
plottimestart = timespec_to_ns(&ts);
|
|
if(plot_hidden){
|
|
ncplane_move_bottom(newp);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int fpsgraph_stop(struct notcurses* nc){
|
|
if(plot){
|
|
ncuplot_destroy(plot);
|
|
plot = NULL;
|
|
notcurses_render(nc);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
// mouse has maybe pressed on the plot. the caller is responsible for rerendering.
|
|
int fpsplot_grab(int y){
|
|
int ret;
|
|
if(plot == NULL || plot_hidden){
|
|
return -1;
|
|
}
|
|
// are we in the middle of a grab?
|
|
if(plot_grab_y >= 0){
|
|
int delty = y - plot_grab_y;
|
|
ret = ncplane_move_yx(ncuplot_plane(plot), plot_pos_y + delty, 0);
|
|
}else{
|
|
// new grab. stash point of original grab, and location of plot at original
|
|
// grab. any delta while grabbed (relative to the original grab point)
|
|
// will see the plot moved by delta (relative to the original plot location).
|
|
int ty = y;
|
|
// first, though, verify that we're clicking within the plot
|
|
if(!ncplane_translate_abs(ncuplot_plane(plot), &ty, NULL)){
|
|
return -1;
|
|
}
|
|
plot_grab_y = y;
|
|
ncplane_yx(ncuplot_plane(plot), &plot_pos_y, NULL);
|
|
ret = 0;
|
|
}
|
|
return ret;
|
|
}
|