1 /* Copyright © 2013, Intel Corporation
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:
10 * The above copyright notice and this permission notice shall be included in
11 * all copies or substantial portions of the Software.
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
26 typedef struct context
28 /* Pointer to the system's context ID, (such as a GLXContext) */
31 /* Does this context have the AMD_performance_monitor extension? */
34 metrics_info_t metrics_info;
38 context_t *current_context;
41 check_extension (const char *extension);
44 context_create (fips_api_t api, void *system_context_id)
48 ctx = xcalloc (1, sizeof (*ctx));
50 ctx->system_id = system_context_id;
52 fips_dispatch_init (api);
54 ctx->have_perfmon = check_extension ("GL_AMD_performance_monitor");
56 metrics_info_init (&ctx->metrics_info, ctx->have_perfmon);
57 ctx->metrics = metrics_create (&ctx->metrics_info);
63 context_destroy (context_t *ctx)
65 metrics_info_fini (&ctx->metrics_info);
69 context_enter (fips_api_t api, void *system_context_id)
71 /* Do nothing for a NULL system_context_id. (Don't ask me why,
72 * but Dota 2 likes to call MakeCurrent with a NULL context ID
73 * just before calling MakeCurrent with the same context it
74 * had been using before. We want to do nothing in this case.)
76 if (system_context_id == NULL)
79 /* Do nothing if the application is setting the same context
80 * as is already current. */
81 if (current_context && current_context->system_id == system_context_id)
85 context_destroy (current_context);
87 current_context = context_create (api, system_context_id);
89 metrics_set_current_op (current_context->metrics,
90 METRICS_OP_SHADER + 0);
91 metrics_counter_start (current_context->metrics);
97 context_t *ctx = current_context;
102 metrics_fini (ctx->metrics);
106 context_counter_start (void)
108 metrics_counter_start (current_context->metrics);
112 context_counter_stop (void)
114 metrics_counter_stop (current_context->metrics);
118 context_set_current_op (metrics_op_t op)
120 metrics_set_current_op (current_context->metrics, op);
124 context_get_current_op (void)
126 return metrics_get_current_op (current_context->metrics);
130 context_end_frame_pre_swap (void)
132 return metrics_end_frame_pre_swap (current_context->metrics);
136 context_end_frame_post_swap (void)
138 return metrics_end_frame_post_swap (current_context->metrics);
141 /* Is the given extension available? */
143 check_extension (const char *extension)
145 int i, num_extensions;
146 const char *available;
148 glGetIntegerv (GL_NUM_EXTENSIONS, &num_extensions);
150 for (i = 0; i < num_extensions; i++) {
151 available = (char *) glGetStringi (GL_EXTENSIONS, i);
152 if (strcmp (extension, available) == 0) {