Prepare profiling macros

1 files changed, 201 insertions, 0 deletions

diff --git a/src/profiling.c b/src/profiling.c
new file mode 100644
index 0000000..de969d2
--- /dev/null
+++ b/src/profiling.c
@@ -0,0 +1,201 @@
+//
+// Profiling macros.
+//
+
+#ifndef PROF_ENABLE
+#define PROF_ENABLE 0
+#endif
+
+#if PROF_ENABLE > 0 && PROF_ENABLE < 3
+
+#ifndef PROF_N_FRAMES
+#define PROF_N_FRAMES 30
+#endif
+
+// Profile method 1: Average per N frames.
+#if PROF_ENABLE == 1
+#define TEXT_ENABLE 1
+#define PROF(F,VAR) \
+    do { \
+        u32 __tmp_prof = profile_measure();\
+        F;\
+        (VAR) += profile_measure() - __tmp_prof;\
+    } while (0)
+
+// Profile method 2: Maximum in N frames.
+#elif PROF_ENABLE == 2
+#define TEXT_ENABLE 1
+#define PROF(F,VAR) \
+    do { \
+        u32 __tmp_prof = profile_measure();\
+        (F);\
+        (VAR) = MAX(profile_measure() - __tmp_prof, (VAR));\
+    } while (0)
+#endif
+
+#ifndef PROF_SHOW_X
+#define PROF_SHOW_X 0
+#endif
+#ifndef PROF_SHOW_Y
+#define PROF_SHOW_Y 0
+#endif
+
+static bool profile_show = true;
+static bool profile_bg_show = true;
+
+#define PROF_SHOW() \
+    do { \
+        if (key_tap(KEY_START)) {\
+            profile_show ^= 1;\
+        }\
+        if (key_tap(KEY_SELECT)) {\
+            profile_bg_show ^= 1;\
+        }\
+        if (profile_show) {\
+            txt_position((PROF_SHOW_X), (PROF_SHOW_Y));\
+            draw_filled_rect((PROF_SHOW_X), (PROF_SHOW_X), 8 * 18, 8 * 16, 0);\
+            txt_printf("VIDEO\n");\
+            txt_printf(">CLEAR  %.8lu\n", avg_clear_cycles);\
+            txt_printf(">LINES  %.8lu\n", avg_line_cycles);\
+            txt_printf(">RECT   %.8lu\n", avg_rect_cycles);\
+            txt_printf(">FRECT  %.8lu\n", avg_fill_rect_cycles);\
+            txt_printf(">1BPP   %.8lu\n", avg_icn_cycles);\
+            txt_printf(">2BPP   %.8lu\n", avg_chr_cycles);\
+            txt_printf(">FLIP   %.8lu\n", avg_flip_cycles);\
+            txt_printf("TEXT\n");\
+            txt_printf(">DRAWF  %.8lu\n", avg_txt_drawf_cycles);\
+            txt_printf(">PRINTF %.8lu\n", avg_txt_printf_cycles);\
+            txt_printf(">RENDER %.8lu\n", avg_txt_render_cycles);\
+            txt_printf(">CLEAR  %.8lu\n", avg_txt_clear_cycles);\
+            txt_printf("TOTAL   %.8lu\n", avg_frame_cycles);\
+        }\
+        if (profile_bg_show) {\
+            u32 frame_time =\
+                FP_DIV(\
+                    FP_NUM(avg_frame_cycles + 1, 2),\
+                    FP_NUM(2809, 2),\
+                    2) * 166;\
+            u32 fps =\
+                FP_DIV(\
+                    FP_NUM(280896 * 60, 2),\
+                    FP_NUM(avg_frame_cycles + 1, 2),\
+                    2);\
+            txt_printf("TIME    %.8lu\n", frame_time >> 2);\
+            txt_printf("FPS     %.8lu\n", (fps >> 2) + 1);\
+        }\
+    } while (0)
+
+static u32 prof_frame_counter = 0;
+
+static u32 frame_cycles      = 0;
+static u32 flip_cycles       = 0;
+static u32 clear_cycles      = 0;
+static u32 line_cycles       = 0;
+static u32 rect_cycles       = 0;
+static u32 fill_rect_cycles  = 0;
+static u32 chr_cycles        = 0;
+static u32 icn_cycles        = 0;
+static u32 txt_drawf_cycles  = 0;
+static u32 txt_printf_cycles = 0;
+static u32 txt_render_cycles = 0;
+static u32 txt_clear_cycles  = 0;
+static u32 input_cycles      = 0;
+
+static u32 avg_frame_cycles      = 0;
+static u32 avg_flip_cycles       = 0;
+static u32 avg_clear_cycles      = 0;
+static u32 avg_line_cycles       = 0;
+static u32 avg_rect_cycles       = 0;
+static u32 avg_fill_rect_cycles  = 0;
+static u32 avg_chr_cycles        = 0;
+static u32 avg_icn_cycles        = 0;
+static u32 avg_txt_drawf_cycles  = 0;
+static u32 avg_txt_printf_cycles = 0;
+static u32 avg_txt_render_cycles = 0;
+static u32 avg_txt_clear_cycles  = 0;
+static u32 avg_input_cycles      = 0;
+
+#if PROF_ENABLE == 1
+#define FRAME_START()\
+    do { \
+        if (prof_frame_counter == PROF_N_FRAMES) {\
+            avg_frame_cycles      = frame_cycles      / prof_frame_counter;\
+            avg_flip_cycles       = flip_cycles       / prof_frame_counter;\
+            avg_clear_cycles      = clear_cycles      / prof_frame_counter;\
+            avg_line_cycles       = line_cycles       / prof_frame_counter;\
+            avg_rect_cycles       = rect_cycles       / prof_frame_counter;\
+            avg_fill_rect_cycles  = fill_rect_cycles  / prof_frame_counter;\
+            avg_chr_cycles        = chr_cycles        / prof_frame_counter;\
+            avg_icn_cycles        = icn_cycles        / prof_frame_counter;\
+            avg_txt_drawf_cycles  = txt_drawf_cycles  / prof_frame_counter;\
+            avg_txt_printf_cycles = txt_printf_cycles / prof_frame_counter;\
+            avg_txt_render_cycles = txt_render_cycles / prof_frame_counter;\
+            avg_txt_clear_cycles  = txt_clear_cycles  / prof_frame_counter;\
+            avg_input_cycles      = input_cycles  / prof_frame_counter;\
+            frame_cycles          = 0;\
+            flip_cycles           = 0;\
+            clear_cycles          = 0;\
+            line_cycles           = 0;\
+            rect_cycles           = 0;\
+            fill_rect_cycles      = 0;\
+            chr_cycles            = 0;\
+            icn_cycles            = 0;\
+            txt_drawf_cycles      = 0;\
+            txt_printf_cycles     = 0;\
+            txt_render_cycles     = 0;\
+            txt_clear_cycles      = 0;\
+            input_cycles          = 0;\
+            prof_frame_counter    = 0;\
+        }\
+        profile_start();\
+    } while (0)
+#elif PROF_ENABLE == 2
+#define FRAME_START()\
+    do { \
+        if (prof_frame_counter == PROF_N_FRAMES) {\
+            avg_frame_cycles      = frame_cycles;\
+            avg_flip_cycles       = flip_cycles;\
+            avg_clear_cycles      = clear_cycles;\
+            avg_line_cycles       = line_cycles;\
+            avg_rect_cycles       = rect_cycles;\
+            avg_fill_rect_cycles  = fill_rect_cycles;\
+            avg_chr_cycles        = chr_cycles;\
+            avg_icn_cycles        = icn_cycles;\
+            avg_txt_drawf_cycles  = txt_drawf_cycles;\
+            avg_txt_printf_cycles = txt_printf_cycles;\
+            avg_txt_render_cycles = txt_render_cycles;\
+            avg_txt_clear_cycles  = txt_clear_cycles;\
+            avg_input_cycles      = input_cycles;\
+            frame_cycles          = 0;\
+            flip_cycles           = 0;\
+            clear_cycles          = 0;\
+            line_cycles           = 0;\
+            rect_cycles           = 0;\
+            fill_rect_cycles      = 0;\
+            chr_cycles            = 0;\
+            icn_cycles            = 0;\
+            txt_drawf_cycles      = 0;\
+            txt_printf_cycles     = 0;\
+            txt_render_cycles     = 0;\
+            txt_clear_cycles      = 0;\
+            input_cycles          = 0;\
+            prof_frame_counter    = 0;\
+        }\
+        profile_start();\
+    } while (0)
+#endif
+
+#define FRAME_END() \
+    do { \
+        prof_frame_counter++;\
+        frame_cycles += profile_stop();\
+    } while (0)
+
+#else
+
+// No profiling.
+#define PROF(F,VAR) (F)
+#define PROF_SHOW()
+#define FRAME_START()
+#define FRAME_END()
+#endif