Add graphics profiling

1 files changed, 47 insertions, 25 deletions

diff --git a/reduced_system_layer.c b/reduced_system_layer.c
index 7e0dcf7..131ee5c 100755
--- a/reduced_system_layer.c
+++ b/reduced_system_layer.c
@@ -268,7 +268,7 @@ i32 main(i32 argc, c8 **argv);
 #endif
 
 #ifndef STATIC_MEMORY_BUFFER_SIZE
-#define STATIC_MEMORY_BUFFER_SIZE (200 * 1024 * 1024)
+#define STATIC_MEMORY_BUFFER_SIZE (400 * 1024 * 1024)
 #endif
 
 #ifndef MEMORY_CHUNK_SIZE
@@ -756,10 +756,20 @@ extern Platform g_platform;
 Platform g_platform = {0};
 
 enum {
+  PROFILE_MEMORY,
   PROFILE_DOWNSCALE,
   PROFILE_RESIZE,
   PROFILE_WAITING,
   PROFILE_FRAME,
+  PROFILE_DRAW_PIXELS,
+  PROFILE_FILL_RECTANGLE,
+  PROFILE_FILL_TRIANGLE,
+  PROFILE_FILL_TRIANGLES,
+  PROFILE_FILL_QUAD,
+  PROFILE_FILL_ELLIPSE,
+  PROFILE_FILL_LINE,
+  PROFILE_DRAW_TEXT_AREA,
+  PROFILE_DRAW_TEXT_CURSOR,
 };
 
 //  ================================================================
@@ -1285,6 +1295,10 @@ static void *memory_buffer_allocate_from_(i64 memory_buffer_size, u8 *memory_buf
     return NULL;
   }
 
+  u8 *dst = NULL;
+
+  PROFILER_begin(PROFILE_MEMORY);
+
   i64 occupied_len       = memory_buffer_occupied_len_(memory_buffer_size);
   i64 occupied_len_bytes = occupied_len * 8;
   i64 occupied_len_bits  = occupied_len * 64;
@@ -1293,27 +1307,27 @@ static void *memory_buffer_allocate_from_(i64 memory_buffer_size, u8 *memory_buf
 
   if (memory_buffer_size <= occupied_len_bytes) {
     LOG_ERROR("Memory buffer too small.");
-    return NULL;
+    goto _finish;
   }
 
   if (alignment <= 0) {
     LOG_ERROR("Invalid alignment: %lld", alignment);
-    return NULL;
+    goto _finish;
   }
 
   if (size < 0) {
     LOG_ERROR("Invalid size: %lld", size);
-    return NULL;
+    goto _finish;
   }
 
   if (previous_size < 0) {
     LOG_ERROR("Invalid previous size: %lld", previous_size);
-    return NULL;
+    goto _finish;
   }
 
   if (previous_size > 0 && previous_data == NULL) {
     LOG_ERROR("Invalid previous data.");
-    return NULL;
+    goto _finish;
   }
 
   u8 *data = memory_buffer + occupied_len_bytes;
@@ -1329,10 +1343,10 @@ static void *memory_buffer_allocate_from_(i64 memory_buffer_size, u8 *memory_buf
   i64 num_chunks = (align_(size, alignment) + MEMORY_CHUNK_SIZE - 1) / MEMORY_CHUNK_SIZE;
   i64 chunk      = (memory_buffer_size      + MEMORY_CHUNK_SIZE - 1) / MEMORY_CHUNK_SIZE;
 
-  if (num_chunks == prev_num_chunks)
-    return previous_data;
-
-  u8 *dst = NULL;
+  if (num_chunks == prev_num_chunks) {
+    dst = (u8 *) previous_data;
+    goto _finish;
+  }
 
   if (num_chunks < prev_num_chunks) {
     //  Reuse previously allocated space.
@@ -1399,8 +1413,10 @@ static void *memory_buffer_allocate_from_(i64 memory_buffer_size, u8 *memory_buf
   }
 
   if (num_chunks == 0)
-    return NULL;
+    dst = NULL;
 
+_finish:
+  PROFILER_end(PROFILE_MEMORY);
   return dst;
 }
 
@@ -1493,10 +1509,8 @@ void PROFILER_init(u32 slot, c8 *name) {
 }
 
 void PROFILER_begin(u32 slot) {
-  if ((i64) (u64) slot >= _profiler_num_slots) {
-    LOG_ERROR("Invalid slot: %d", (i32) slot);
+  if ((i64) (u64) slot >= _profiler_num_slots)
     return;
-  }
 
   if (_profiler_slots[slot].count < 0) {
     LOG_ERROR("Sanity");
@@ -1533,10 +1547,8 @@ static void normalize_time_(i64 *sec, i64 *nsec) {
 }
 
 void PROFILER_end(u32 slot) {
-  if ((i64) (u64) slot >= _profiler_num_slots) {
-    LOG_ERROR("Invalid slot: %d", (i32) slot);
+  if ((i64) (u64) slot >= _profiler_num_slots)
     return;
-  }
 
   if (_profiler_slots[slot].count <= 0) {
     LOG_ERROR("Sanity");
@@ -3125,10 +3137,20 @@ void put_image_to_main_window_(void) {
 }
 
 void init_main_window(void) {
-  PROFILER_init(PROFILE_DOWNSCALE, "Downscale anti-aliasing");
-  PROFILER_init(PROFILE_RESIZE,    "Resize in-place");
-  PROFILER_init(PROFILE_WAITING,   "Waiting for events");
-  PROFILER_init(PROFILE_FRAME,     "Update frame");
+  PROFILER_init(PROFILE_MEMORY,           "Memory allocator");
+  PROFILER_init(PROFILE_DOWNSCALE,        "Downscale anti-aliasing");
+  PROFILER_init(PROFILE_RESIZE,           "Resize in-place");
+  PROFILER_init(PROFILE_WAITING,          "Waiting for events");
+  PROFILER_init(PROFILE_FRAME,            "Update frame");
+  PROFILER_init(PROFILE_DRAW_PIXELS,      "Draw pixels");
+  PROFILER_init(PROFILE_FILL_RECTANGLE,   "Fill rectangle");
+  PROFILER_init(PROFILE_FILL_TRIANGLE,    "Fill triangle");
+  PROFILER_init(PROFILE_FILL_TRIANGLES,   "Fill triangles");
+  PROFILER_init(PROFILE_FILL_QUAD,        "Fill quad");
+  PROFILER_init(PROFILE_FILL_ELLIPSE,     "Fill ellipse");
+  PROFILER_init(PROFILE_FILL_LINE,        "Fill line");
+  PROFILER_init(PROFILE_DRAW_TEXT_AREA,   "Draw text area");
+  PROFILER_init(PROFILE_DRAW_TEXT_CURSOR, "Draw text cursor");
 
   for (i64 i = 0; i < NUM_FRAMES_AVERAGED; ++i)
     _frame_duration[i] = (MIN_FRAME_DURATION + MAX_FRAME_DURATION) / 2;
@@ -3358,11 +3380,11 @@ void shutdown_all_systems(void) {
   if (_profiler_num_slots > 0) {
     printf("\nPROFILER REPORT\n\n");
     for (i64 i = 0; i < _profiler_num_slots; ++i) {
-      if (_profiler_slots[i].name == NULL)
-       continue;
-      f64 k = 1. / _profiler_slots[i].amount;
+      if (_profiler_slots[i].name == NULL || _profiler_slots[i].amount == 0)
+        continue;
+      f64 k = _profiler_slots[i].amount == 0 ? 0. : 1. / _profiler_slots[i].amount;
       f64 f = ((f64) _profiler_slots[i].time_sec) * k + ((f64 )_profiler_slots[i].time_nsec * .000000001) * k;
-      printf("%-31s %3lld.%09lld / %4lld = %g\n", _profiler_slots[i].name, _profiler_slots[i].time_sec, _profiler_slots[i].time_nsec, _profiler_slots[i].amount, f);
+      printf("%-31s %3lld.%09lld / %4lld = %.6f\n", _profiler_slots[i].name, _profiler_slots[i].time_sec, _profiler_slots[i].time_nsec, _profiler_slots[i].amount, f);
     }
     printf("\n");
   }