- added libdrawtext

[demo_prior] / src / demo.c

diff --git a/src/demo.c b/src/demo.c
index a4bb0c7..f199939 100644 (file)
--- a/src/demo.c
+++ b/src/demo.c
@@ -5,6 +5,9 @@
 #include "post.h"
 #include "sdr.h"
 #include "opt.h"
+#include "drawtext.h"
+#include "imtk.h"
+#include "osd.h"
 
 void reg_whitted(void);
 
@@ -12,6 +15,9 @@ int win_width, win_height;
 float win_aspect;
 long time_msec;
 
+struct dtx_font *fnt_ui;
+int fnt_ui_size;
+
 static int reshape_pending;
 static unsigned int sdr_gamma;
 
@@ -32,6 +38,19 @@ int demo_init(void)
                glEnable(GL_MULTISAMPLE);
        }
 
+       if(opt.vsync) {
+               gl_swap_interval(1);
+       } else {
+               gl_swap_interval(0);
+       }
+
+       if(!(fnt_ui = dtx_open_font_glyphmap("data/ui.glyphmap"))) {
+               fprintf(stderr, "failed to open ui font\n");
+               return -1;
+       }
+       fnt_ui_size = dtx_get_glyphmap_ptsize(dtx_get_glyphmap(fnt_ui, 0));
+       dtx_prepare_range(fnt_ui, fnt_ui_size, 32, 127);
+
        post_init();
 
        if(!(sdr_gamma = create_program_load("sdr/post.v.glsl", "sdr/gamma.p.glsl"))) {
@@ -63,6 +82,8 @@ void demo_cleanup(void)
        for(i=0; i<num_parts; i++) {
                parts[i]->destroy();
        }
+
+       dtx_close_font(fnt_ui);
 }
 
 void demo_display(void)
@@ -109,6 +130,24 @@ void demo_display(void)
                glUseProgram(sdr_gamma);
                overlay_tex(post_fbtex, 1.0);
        }
+
+       {
+               static long frames, prev_upd, fps;
+               long dt;
+
+               frames++;
+
+               dt = time_msec - prev_upd;
+               if(dt >= 750) {
+                       fps = (frames * 1000 << 8 + 128) / dt;
+                       frames = 0;
+                       prev_upd = time_msec;
+               }
+
+               print_text(win_width - 80, 20, 1.0, 0.8, 0.1, "fps: %ld.%ld", fps >> 8, ((fps & 0xff) * 10) >> 8);
+       }
+
+       draw_osd();
 }
 
 void demo_reshape(int x, int y)
@@ -124,6 +163,8 @@ void demo_reshape(int x, int y)
        glMatrixMode(GL_PROJECTION);
        glLoadIdentity();
        gluPerspective(50.0, win_aspect, 0.5, 500.0);
+
+       imtk_set_viewport(x, y);
 }
 
 void demo_keyboard(int key, int st)