[PATCH] gui: handle the case where first frame isn't frame zero

[Rob Clark]

This gets the profile view properly zoomed in if we are, for example,
just profiling a single frame from a larger trace.
---
 lib/trace/trace_profiler.cpp | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/lib/trace/trace_profiler.cpp b/lib/trace/trace_profiler.cpp
index 65c91aa..5410e87 100644
--- a/lib/trace/trace_profiler.cpp
+++ b/lib/trace/trace_profiler.cpp
@@ -167,6 +167,8 @@ void Profiler::parseLine(const char* in, Profile* profile)
     std::string type;
     static int64_t lastGpuTime;
     static int64_t lastCpuTime;
+    static int64_t firstGpuTime;
+    static int64_t firstCpuTime;
     static int64_t lastVsizeUsage;
     static int64_t lastRssUsage;
 
@@ -176,6 +178,8 @@ void Profiler::parseLine(const char* in, Profile* profile)
     if (profile->programs.size() == 0 && profile->calls.size() == 0 && profile->frames.size() == 0) {
         lastGpuTime = 0;
         lastCpuTime = 0;
+        firstGpuTime = 0;
+        firstCpuTime = 0;
         lastVsizeUsage = 0;
         lastRssUsage = 0;
     }
@@ -214,6 +218,11 @@ void Profiler::parseLine(const char* in, Profile* profile)
             lastRssUsage = call.rssStart + call.rssDuration;
         }
 
+        if (profile->calls.size() == 0) {
+            firstGpuTime = call.gpuStart;
+            firstCpuTime = call.cpuStart;
+        }
+
         profile->calls.push_back(call);
 
         if (call.pixels >= 0) {
@@ -234,8 +243,8 @@ void Profiler::parseLine(const char* in, Profile* profile)
         frame.no = unsigned(profile->frames.size());
 
         if (frame.no == 0) {
-            frame.gpuStart = 0;
-            frame.cpuStart = 0;
+            frame.gpuStart = firstGpuTime;
+            frame.cpuStart = firstCpuTime;
             frame.vsizeStart = 0;
             frame.rssStart = 0;
             frame.calls.begin = 0;
-- 
2.7.4