trace: Enable dumping to be turned on and off

src/gallium/drivers/trace/tr_context.c

@@ -1089,7 +1089,7 @@ trace_context_create(struct pipe_screen *_screen,
    if(!pipe)
       goto error1;
 
-   if(!trace_dump_enabled())
+   if(!trace_dump_trace_enabled())
       goto error1;
 
    tr_scr = trace_screen(_screen);

src/gallium/drivers/trace/tr_dump.c

@@ -61,6 +61,7 @@ static struct util_stream *stream = NULL;
 static unsigned refcount = 0;
 static pipe_mutex call_mutex;
 static long unsigned call_no = 0;
+static boolean dumping = FALSE;
 
 
 static INLINE void
@@ -258,7 +259,7 @@ boolean trace_dump_trace_begin()
    return TRUE;
 }
 
-boolean trace_dump_enabled(void)
+boolean trace_dump_trace_enabled(void)
 {
    return stream ? TRUE : FALSE;
 }
@@ -270,9 +271,71 @@ void trace_dump_trace_end(void)
          trace_dump_trace_close();
 }
 
-void trace_dump_call_begin(const char *klass, const char *method)
+/*
+ * Call lock
+ */
+
+void trace_dump_call_lock(void)
+{
+   pipe_mutex_lock(call_mutex);
+}
+
+void trace_dump_call_unlock(void)
+{
+   pipe_mutex_unlock(call_mutex);
+}
+
+/*
+ * Dumping control
+ */
+
+void trace_dumping_start_locked(void)
+{
+   dumping = TRUE;
+}
+
+void trace_dumping_stop_locked(void)
+{
+   dumping = FALSE;
+}
+
+boolean trace_dumping_enabled_locked(void)
+{
+   return dumping;
+}
+
+void trace_dumping_start(void)
+{
+   pipe_mutex_lock(call_mutex);
+   trace_dumping_start_locked();
+   pipe_mutex_unlock(call_mutex);
+}
+
+void trace_dumping_stop(void)
 {
    pipe_mutex_lock(call_mutex);
+   trace_dumping_stop_locked();
+   pipe_mutex_unlock(call_mutex);
+}
+
+boolean trace_dumping_enabled(void)
+{
+   boolean ret;
+   pipe_mutex_lock(call_mutex);
+   ret = trace_dumping_enabled_locked();
+   pipe_mutex_unlock(call_mutex);
+   return ret;
+}
+
+/*
+ * Dump functions
+ */
+
+void trace_dump_call_begin_locked(const char *klass, const char *method)
+{
+   if (!dumping)
+      return;
+
    ++call_no;
    trace_dump_indent(1);
    trace_dump_writes("<call no=\'");
@@ -285,56 +348,94 @@ void trace_dump_call_begin(const char *klass, const char *method)
    trace_dump_newline();
 }
 
-void trace_dump_call_end(void)
+void trace_dump_call_end_locked(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_indent(1);
    trace_dump_tag_end("call");
    trace_dump_newline();
    util_stream_flush(stream);
+}
+
+void trace_dump_call_begin(const char *klass, const char *method)
+{
+   pipe_mutex_lock(call_mutex);
+   trace_dump_call_begin_locked(klass, method);
+}
+
+void trace_dump_call_end(void)
+{
+   trace_dump_call_end_locked();
    pipe_mutex_unlock(call_mutex);
 }
 
 void trace_dump_arg_begin(const char *name)
 {
+   if (!dumping)
+      return;
+
    trace_dump_indent(2);
    trace_dump_tag_begin1("arg", "name", name);
 }
 
 void trace_dump_arg_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_tag_end("arg");
    trace_dump_newline();
 }
 
 void trace_dump_ret_begin(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_indent(2);
    trace_dump_tag_begin("ret");
 }
 
 void trace_dump_ret_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_tag_end("ret");
    trace_dump_newline();
 }
 
 void trace_dump_bool(int value)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<bool>%c</bool>", value ? '1' : '0');
 }
 
 void trace_dump_int(long long int value)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<int>%lli</int>", value);
 }
 
 void trace_dump_uint(long long unsigned value)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<uint>%llu</uint>", value);
 }
 
 void trace_dump_float(double value)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<float>%g</float>", value);
 }
 
@@ -344,6 +445,10 @@ void trace_dump_bytes(const void *data,
    static const char hex_table[16] = "0123456789ABCDEF";
    const uint8_t *p = data;
    long unsigned i;
+
+   if (!dumping)
+      return;
+
    trace_dump_writes("<bytes>");
    for(i = 0; i < size; ++i) {
       uint8_t byte = *p++;
@@ -357,6 +462,9 @@ void trace_dump_bytes(const void *data,
 
 void trace_dump_string(const char *str)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("<string>");
    trace_dump_escape(str);
    trace_dump_writes("</string>");
@@ -364,6 +472,9 @@ void trace_dump_string(const char *str)
 
 void trace_dump_enum(const char *value)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("<enum>");
    trace_dump_escape(value);
    trace_dump_writes("</enum>");
@@ -371,51 +482,81 @@ void trace_dump_enum(const char *value)
 
 void trace_dump_array_begin(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("<array>");
 }
 
 void trace_dump_array_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("</array>");
 }
 
 void trace_dump_elem_begin(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("<elem>");
 }
 
 void trace_dump_elem_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("</elem>");
 }
 
 void trace_dump_struct_begin(const char *name)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<struct name='%s'>", name);
 }
 
 void trace_dump_struct_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("</struct>");
 }
 
 void trace_dump_member_begin(const char *name)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writef("<member name='%s'>", name);
 }
 
 void trace_dump_member_end(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("</member>");
 }
 
 void trace_dump_null(void)
 {
+   if (!dumping)
+      return;
+
    trace_dump_writes("<null/>");
 }
 
 void trace_dump_ptr(const void *value)
 {
+   if (!dumping)
+      return;
+
    if(value)
       trace_dump_writef("<ptr>0x%08lx</ptr>", (unsigned long)(uintptr_t)value);
    else
@@ -424,6 +565,9 @@ void trace_dump_ptr(const void *value)
 
 void trace_dump_buffer_ptr(struct pipe_buffer *_buffer)
 {
+   if (!dumping)
+      return;
+
    if (_buffer) {
       struct trace_buffer *tr_buf = trace_buffer(_buffer);
       trace_dump_ptr(tr_buf->buffer);
@@ -434,6 +578,9 @@ void trace_dump_buffer_ptr(struct pipe_buffer *_buffer)
 
 void trace_dump_texture_ptr(struct pipe_texture *_texture)
 {
+   if (!dumping)
+      return;
+
    if (_texture) {
       struct trace_texture *tr_tex = trace_texture(_texture);
       trace_dump_ptr(tr_tex->texture);
@@ -444,6 +591,9 @@ void trace_dump_texture_ptr(struct pipe_texture *_texture)
 
 void trace_dump_surface_ptr(struct pipe_surface *_surface)
 {
+   if (!dumping)
+      return;
+
    if (_surface) {
       struct trace_surface *tr_surf = trace_surface(_surface);
       trace_dump_ptr(tr_surf->surface);
@@ -454,6 +604,9 @@ void trace_dump_surface_ptr(struct pipe_surface *_surface)
 
 void trace_dump_transfer_ptr(struct pipe_transfer *_transfer)
 {
+   if (!dumping)
+      return;
+
    if (_transfer) {
       struct trace_transfer *tr_tran = trace_transfer(_transfer);
       trace_dump_ptr(tr_tran->transfer);

src/gallium/drivers/trace/tr_dump.h

@@ -42,11 +42,42 @@ struct pipe_texture;
 struct pipe_surface;
 struct pipe_transfer;
 
+/*
+ * Low level dumping controls.
+ *
+ * Opening the trace file and checking if that is opened.
+ */
 boolean trace_dump_trace_begin(void);
-boolean trace_dump_enabled(void);
+boolean trace_dump_trace_enabled(void);
 void trace_dump_trace_end(void);
+
+/*
+ * Lock and unlock the call mutex.
+ *
+ * It used by the none locked version of dumping control
+ * and begin/end call dump functions.
+ *
+ * Begin takes the lock while end unlocks it. Use the _locked
+ * version to avoid locking/unlocking it.
+ */
+void trace_dump_call_lock(void);
+void trace_dump_call_unlock(void);
+
+/*
+ * High level dumping control.
+ */
+void trace_dumping_start_locked(void);
+void trace_dumping_stop_locked(void);
+boolean trace_dumping_enabled_locked(void);
+void trace_dumping_start(void);
+void trace_dumping_stop(void);
+boolean trace_dumping_enabled(void);
+
+void trace_dump_call_begin_locked(const char *klass, const char *method);
+void trace_dump_call_end_locked(void);
 void trace_dump_call_begin(const char *klass, const char *method);
 void trace_dump_call_end(void);
+
 void trace_dump_arg_begin(const char *name);
 void trace_dump_arg_end(void);
 void trace_dump_ret_begin(void);

src/gallium/drivers/trace/tr_screen.c

@@ -843,6 +843,8 @@ trace_screen_create(struct pipe_screen *screen)
    if(!trace_dump_trace_begin())
       goto error1;
 
+   trace_dumping_start();
+
    trace_dump_call_begin("", "pipe_screen_create");
 
    tr_scr = CALLOC_STRUCT(trace_screen);