Line data Source code
1 : /* rendertimers.cpp: renderer functionality used for displaying rendering stats
2 : * while the program is running
3 : *
4 : * timers can be created with designated start/stop points in the code; sub-ms
5 : * times needed for accurate diagnosis possible (each frame is ~16.6ms @ 60Hz)
6 : *
7 : * used in rendergl.cpp
8 : */
9 : #include "../libprimis-headers/cube.h"
10 : #include "../../shared/geomexts.h"
11 : #include "../../shared/glexts.h"
12 :
13 : #include "rendergl.h"
14 : #include "rendertext.h"
15 : #include "renderttf.h"
16 : #include "renderva.h"
17 :
18 : #include "interface/control.h"
19 :
20 : void cleanuptimers(); //needed for timer script gvar
21 0 : VARFN(timer, usetimers, 0, 0, 1, cleanuptimers()); //toggles logging timer information & rendering it
22 : VAR(frametimer, 0, 0, 1); //toggles timing how long each frame takes (and rendering it to timer ui)
23 :
24 : struct timer
25 : {
26 : enum
27 : {
28 : Timer_MaxQuery = 4 //max number of gl queries
29 : };
30 : const char *name; //name the timer reports as
31 : bool gpu; //whether the timer is for gpu time (true) or cpu time
32 : std::array<GLuint, Timer_MaxQuery> query; //gpu query information
33 : int waiting; //internal bitmask for queries
34 : size_t starttime; //time the timer was started (in terms of ms since game started)
35 : float result, //raw value of the timer, -1 if no info available
36 : print; //the time the timer displays: ms per frame for whatever object
37 : };
38 :
39 : //locally relevant functionality
40 : namespace
41 : {
42 : std::vector<timer> timers;
43 : std::vector<size_t> timerorder;
44 : size_t timercycle = 0;
45 :
46 0 : timer *findtimer(const char *name, bool gpu) //also creates a new timer if none found
47 : {
48 0 : for(size_t i = 0; i < timers.size(); i++)
49 : {
50 0 : if(!std::strcmp(timers[i].name, name) && timers[i].gpu == gpu)
51 : {
52 0 : timerorder.erase(std::find(timerorder.begin(), timerorder.end(), i));
53 0 : timerorder.push_back(i);
54 0 : return &timers[i];
55 : }
56 : }
57 0 : timerorder.push_back(timers.size());
58 0 : timers.emplace_back();
59 0 : timer &t = timers.back();
60 0 : t.name = name;
61 0 : t.gpu = gpu;
62 0 : t.query.fill(0);
63 0 : if(gpu)
64 : {
65 0 : glGenQueries(timer::Timer_MaxQuery, t.query.data());
66 : }
67 0 : t.waiting = 0;
68 0 : t.starttime = 0;
69 0 : t.result = -1;
70 0 : t.print = -1;
71 0 : return &t;
72 : }
73 : }
74 :
75 : //externally relevant functionality
76 :
77 : //used to start a timer in some part of the code, cannot be used outside of rendering part
78 :
79 0 : timer *begintimer(const char *name, bool gpu)
80 : {
81 0 : if(!usetimers || inbetweenframes || (gpu && (!hasTQ || deferquery)))
82 : {
83 0 : return nullptr;
84 : }
85 0 : timer *t = findtimer(name, gpu);
86 0 : if(t->gpu)
87 : {
88 0 : deferquery++;
89 0 : glBeginQuery(GL_TIME_ELAPSED_EXT, t->query[timercycle]);
90 0 : t->waiting |= 1<<timercycle;
91 : }
92 : else
93 : {
94 0 : t->starttime = getclockmillis();
95 : }
96 0 : return t;
97 : }
98 :
99 : //used to end a timer started by begintimer(), needs to be included sometime after begintimer
100 : //the part between begintimer() and endtimer() is what gets timed
101 0 : void endtimer(timer *t)
102 : {
103 0 : if(!t)
104 : {
105 0 : return;
106 : }
107 0 : if(t->gpu)
108 : {
109 0 : glEndQuery(GL_TIME_ELAPSED_EXT);
110 0 : deferquery--;
111 : }
112 : else
113 : {
114 0 : t->result = std::max(static_cast<float>(getclockmillis() - t->starttime), 0.0f);
115 : }
116 : }
117 :
118 : //foreach timer, query what time has passed since last update
119 0 : void synctimers()
120 : {
121 0 : timercycle = (timercycle + 1) % timer::Timer_MaxQuery;
122 :
123 0 : for(timer& t : timers)
124 : {
125 0 : if(t.waiting&(1<<timercycle))
126 : {
127 0 : GLint available = 0;
128 0 : while(!available)
129 : {
130 0 : glGetQueryObjectiv(t.query[timercycle], GL_QUERY_RESULT_AVAILABLE, &available);
131 : }
132 0 : GLuint64EXT result = 0;
133 0 : glGetQueryObjectui64v(t.query[timercycle], GL_QUERY_RESULT, &result);
134 0 : t.result = std::max(static_cast<float>(result) * 1e-6f, 0.0f);
135 0 : t.waiting &= ~(1<<timercycle);
136 : }
137 : else
138 : {
139 0 : t.result = -1;
140 : }
141 : }
142 0 : }
143 :
144 0 : void cleanuptimers()
145 : {
146 0 : for(const timer& t : timers)
147 : {
148 0 : if(t.gpu)
149 : {
150 0 : glDeleteQueries(timer::Timer_MaxQuery, t.query.data());
151 : }
152 : }
153 0 : timers.clear();
154 0 : timerorder.clear();
155 0 : }
156 :
157 0 : void printtimers(int conw, int framemillis)
158 : {
159 0 : if(!frametimer && !usetimers)
160 : {
161 0 : return;
162 : }
163 : static int lastprint = 0;
164 0 : int offset = 0;
165 0 : if(frametimer)
166 : {
167 : static int printmillis = 0;
168 0 : if(totalmillis - lastprint >= 200)
169 : {
170 0 : printmillis = framemillis;
171 : }
172 : char framestring[200];
173 0 : constexpr int size = 42;
174 0 : std::sprintf(framestring, "frame time %i ms", printmillis);
175 0 : ttr.fontsize(size);
176 0 : ttr.renderttf(framestring, {0xFF, 0xFF, 0xFF, 0}, conw-20*size, size*3/2+offset*9*size/8);
177 : //draw_textf("frame time %i ms", conw-20*FONTH, conh-FONTH*3/2-offset*9*FONTH/8, printmillis);
178 0 : offset++;
179 : }
180 0 : if(usetimers)
181 : {
182 0 : for(int i : timerorder)
183 : {
184 0 : timer &t = timers[i];
185 0 : if(t.print < 0 ? t.result >= 0 : totalmillis - lastprint >= 200)
186 : {
187 0 : t.print = t.result;
188 : }
189 0 : if(t.print < 0 || (t.gpu && !(t.waiting&(1<<timercycle))))
190 : {
191 0 : continue;
192 : }
193 : char framestring[200];
194 0 : constexpr int size = 42;
195 0 : std::sprintf(framestring, "%s%s %5.2f ms", t.name, t.gpu ? "" : " (cpu)", t.print);
196 0 : ttr.fontsize(size);
197 0 : ttr.renderttf(framestring, {0xFF, 0xFF, 0xFF, 0}, conw-20*size, size*3/2+offset*9*size/8);
198 :
199 : //draw_textf("%s%s %5.2f ms", conw-20*FONTH, conh-FONTH*3/2-offset*9*FONTH/8, t.name, t.gpu ? "" : " (cpu)", t.print);
200 0 : offset++;
201 : }
202 : }
203 0 : if(totalmillis - lastprint >= 200)
204 : {
205 0 : lastprint = totalmillis;
206 : }
207 : }
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