uint64_t duration;
};
+static bool supportsElapsed = true;
+static bool supportsTimestamp = true;
+static bool supportsOcclusion = true;
+
static bool firstFrame = true;
static std::list<CallQuery> callQueries;
-static std::map<glws::Context*, GLuint> activePrograms;
void
GLuint query = 0;
GLuint64 timestamp = 0;
- if (retrace::profilingGpuTimes) {
+ if (retrace::profilingGpuTimes && supportsTimestamp) {
glGenQueries(1, &query);
glQueryCounter(query, GL_TIMESTAMP);
glGetQueryObjectui64vEXT(query, GL_QUERY_RESULT, ×tamp);
GLuint64 timestamp = 0, duration = 0, samples = 0;
if (retrace::profilingGpuTimes) {
- glGetQueryObjectui64vEXT(query.ids[0], GL_QUERY_RESULT, ×tamp);
- glGetQueryObjectui64vEXT(query.ids[1], GL_QUERY_RESULT, &duration);
+ if (supportsTimestamp) {
+ glGetQueryObjectui64vEXT(query.ids[0], GL_QUERY_RESULT, ×tamp);
+ }
+
+ if (supportsElapsed) {
+ glGetQueryObjectui64vEXT(query.ids[1], GL_QUERY_RESULT, &duration);
+ }
}
- if (retrace::profilingPixelsDrawn) {
+ if (retrace::profilingPixelsDrawn && supportsOcclusion) {
glGetQueryObjectui64vEXT(query.ids[2], GL_QUERY_RESULT, &samples);
}
callQueries.clear();
}
-void setActiveProgram(GLuint program)
-{
- activePrograms[glretrace::currentContext] = program;
-}
-
-static GLuint
-getActiveProgram()
-{
- std::map<glws::Context*, GLuint>::iterator it;
- it = activePrograms.find(glretrace::currentContext);
- if (it == activePrograms.end())
- return 0;
-
- return it->second;
-}
-
void
beginProfile(trace::Call &call) {
if (firstFrame) {
- const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
- if (!glws::checkExtension("GL_ARB_timer_query", extensions)) {
- std::cout << "Error: Cannot run profile, GL_ARB_timer_query extension is not supported." << std::endl;
- exit(-1);
- }
-
frame_start();
}
CallQuery query;
query.call = call.no;
query.sig = call.sig;
- query.program = getActiveProgram();
+ query.program = glretrace::currentContext ? glretrace::currentContext->activeProgram : 0;
glGenQueries(3, query.ids);
if (retrace::profilingGpuTimes) {
- glQueryCounter(query.ids[0], GL_TIMESTAMP);
- glBeginQuery(GL_TIME_ELAPSED, query.ids[1]);
+ if (supportsTimestamp) {
+ glQueryCounter(query.ids[0], GL_TIMESTAMP);
+ }
+
+ if (supportsElapsed) {
+ glBeginQuery(GL_TIME_ELAPSED, query.ids[1]);
+ }
}
- if (retrace::profilingPixelsDrawn) {
+ if (retrace::profilingPixelsDrawn && supportsOcclusion) {
glBeginQuery(GL_SAMPLES_PASSED, query.ids[2]);
}
query.duration = (os::getTime() - query.start) * (1.0E9 / os::timeFrequency);
}
- if (retrace::profilingGpuTimes) {
+ if (retrace::profilingGpuTimes && supportsElapsed) {
glEndQuery(GL_TIME_ELAPSED);
}
- if (retrace::profilingPixelsDrawn) {
+ if (retrace::profilingPixelsDrawn && supportsOcclusion) {
glEndQuery(GL_SAMPLES_PASSED);
}
}
+void
+initContext() {
+ /* Check for extension support */
+ const char* extensions = (const char*)glGetString(GL_EXTENSIONS);
+ GLint bits;
+
+ supportsTimestamp = glws::checkExtension("GL_ARB_timer_query", extensions);
+ supportsElapsed = glws::checkExtension("GL_EXT_timer_query", extensions) || supportsTimestamp;
+ supportsOcclusion = glws::checkExtension("GL_ARB_occlusion_query", extensions);
+
+ if (retrace::profilingGpuTimes) {
+ if (!supportsTimestamp && !supportsElapsed) {
+ std::cout << "Error: Cannot run profile, GL_EXT_timer_query extension is not supported." << std::endl;
+ exit(-1);
+ }
+
+ glGetQueryiv(GL_TIME_ELAPSED, GL_QUERY_COUNTER_BITS, &bits);
+
+ if (!bits) {
+ std::cout << "Error: Cannot run profile, GL_QUERY_COUNTER_BITS == 0." << std::endl;
+ exit(-1);
+ }
+ }
+
+ if (retrace::profilingPixelsDrawn && !supportsOcclusion) {
+ std::cout << "Error: Cannot run profile, GL_ARB_occlusion_query extension is not supported." << std::endl;
+ exit(-1);
+ }
+}
+
void
frame_start() {
firstFrame = false;