git.cworth.org Git - fips/blob - metrics.c

   1 /* Copyright © 2013, Intel Corporation
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a copy
   4  * of this software and associated documentation files (the "Software"), to deal
   5  * in the Software without restriction, including without limitation the rights
   6  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   7  * copies of the Software, and to permit persons to whom the Software is
   8  * furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice shall be included in
  11  * all copies or substantial portions of the Software.
  12  *
  13  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  14  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  15  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
  16  * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  17  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  18  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  19  * THE SOFTWARE.
  20  */
  21
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24
  25 #include <sys/time.h>
  26
  27 #include "fips-dispatch-gl.h"
  28
  29 #include "metrics.h"
  30
  31 typedef struct counter
  32 {
  33         unsigned id;
  34         unsigned program;
  35         struct counter *next;
  36 } counter_t;
  37
  38 typedef struct program_metrics
  39 {
  40         unsigned id;
  41         double ticks;
  42 } program_metrics_t;
  43
  44 typedef struct context
  45 {
  46         unsigned int program;
  47
  48         counter_t *counter_head;
  49         counter_t *counter_tail;
  50
  51         unsigned num_program_metrics;
  52         program_metrics_t *program_metrics;
  53 } context_t;
  54
  55 /* FIXME: Need a map from integers to context objects and track the
  56  * current context with glXMakeContextCurrent, eglMakeCurrent, etc. */
  57
  58 context_t current_context;
  59
  60 unsigned
  61 metrics_counter_new (void)
  62 {
  63         counter_t *counter;
  64
  65         counter = malloc (sizeof(counter_t));
  66         if (counter == NULL) {
  67                 fprintf (stderr, "Out of memory\n");
  68                 exit (1);
  69         }
  70
  71         glGenQueries (1, &counter->id);
  72
  73         counter->program = current_context.program;
  74         counter->next = NULL;
  75
  76         if (current_context.counter_tail) {
  77                 current_context.counter_tail->next = counter;
  78                 current_context.counter_tail = counter;
  79         } else {
  80                 current_context.counter_tail = counter;
  81                 current_context.counter_head = counter;
  82         }
  83
  84         return counter->id;
  85 }
  86
  87 void
  88 metrics_counter_start (unsigned counter)
  89 {
  90         glBeginQuery (GL_TIME_ELAPSED, counter);
  91 }
  92
  93 void
  94 metrics_counter_stop (void)
  95 {
  96         glEndQuery (GL_TIME_ELAPSED);
  97 }
  98
  99 void
 100 metrics_set_current_program (unsigned program)
 101 {
 102         current_context.program = program;
 103 }
 104
 105 static void
 106 accumulate_program_ticks (unsigned program_id, unsigned ticks)
 107 {
 108         context_t *ctx = &current_context;
 109         unsigned i;
 110
 111         if (program_id >= ctx->num_program_metrics) {
 112                 ctx->program_metrics = realloc (ctx->program_metrics,
 113                                                 (program_id + 1) * sizeof (program_metrics_t));
 114                 for (i = ctx->num_program_metrics; i < program_id + 1; i++) {
 115                         ctx->program_metrics[i].id = i;
 116                         ctx->program_metrics[i].ticks = 0.0;
 117                 }
 118
 119                 ctx->num_program_metrics = program_id + 1;
 120         }
 121
 122         ctx->program_metrics[program_id].ticks += ticks;
 123 }
 124
 125 /* FIXME: Should sort the metrics, print out percentages, etc. */
 126 static void
 127 print_program_metrics (void)
 128 {
 129         context_t *ctx = &current_context;
 130         unsigned i;
 131
 132         for (i = 0; i < ctx->num_program_metrics; i++) {
 133                 if (ctx->program_metrics[i].ticks == 0.0)
 134                         continue;
 135                 printf ("Program %d:\t%7.2f mega-ticks\n",
 136                         i, ctx->program_metrics[i].ticks / 1e6);
 137         }
 138 }
 139
 140 void
 141 metrics_end_frame (void)
 142 {
 143         static int initialized = 0;
 144         static int frames;
 145         static struct timeval tv_start, tv_now;
 146
 147         if (! initialized) {
 148                 frames = 0;
 149                 gettimeofday (&tv_start, NULL);
 150                 initialized = 1;
 151         }
 152
 153
 154         frames++;
 155         gettimeofday (&tv_now, NULL);
 156
 157         /* Consume all counters that are ready. */
 158         counter_t *counter = current_context.counter_head;
 159
 160         while (counter) {
 161                 GLuint available, elapsed;
 162
 163                 glGetQueryObjectuiv (counter->id, GL_QUERY_RESULT_AVAILABLE,
 164                                      &available);
 165                 if (! available)
 166                         break;
 167
 168                 glGetQueryObjectuiv (counter->id, GL_QUERY_RESULT, &elapsed);
 169
 170                 accumulate_program_ticks (counter->program, elapsed);
 171
 172                 current_context.counter_head = counter->next;
 173                 if (current_context.counter_head == NULL)
 174                         current_context.counter_tail = NULL;
 175
 176                 glDeleteQueries (1, &counter->id);
 177
 178                 free (counter);
 179                 counter = current_context.counter_head;
 180         }
 181
 182         if (frames % 60 == 0) {
 183                 double fps;
 184
 185                 fps = (double) frames / (tv_now.tv_sec - tv_start.tv_sec +
 186                                          (tv_now.tv_usec - tv_start.tv_usec) / 1.0e6);
 187
 188                 printf("FPS: %.3f\n", fps);
 189
 190                 print_program_metrics ();
 191         }
 192 }