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Re: [PATCH v2 2/9] hw/audio/fmopl: Move ENV_CURVE to .heap to save 32KiB


From: Philippe Mathieu-Daudé
Subject: Re: [PATCH v2 2/9] hw/audio/fmopl: Move ENV_CURVE to .heap to save 32KiB of .bss
Date: Thu, 5 Mar 2020 14:50:47 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:68.0) Gecko/20100101 Thunderbird/68.4.1

On 3/5/20 2:48 PM, Stefano Garzarella wrote:
On Thu, Mar 05, 2020 at 02:44:03PM +0100, Stefano Garzarella wrote:
On Thu, Mar 05, 2020 at 01:45:18PM +0100, Philippe Mathieu-Daudé wrote:
This buffer is only used by the adlib audio device. Move it to
the .heap to release 32KiB of .bss (size reported on x86_64 host).

Signed-off-by: Philippe Mathieu-Daudé <address@hidden>
---
  hw/audio/fmopl.c | 4 +++-
  1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/audio/fmopl.c b/hw/audio/fmopl.c
index 173a7521f2..356d4dfbca 100644
--- a/hw/audio/fmopl.c
+++ b/hw/audio/fmopl.c
@@ -186,7 +186,7 @@ static int32_t *VIB_TABLE;
/* envelope output curve table */
  /* attack + decay + OFF */
-static int32_t ENV_CURVE[2*EG_ENT+1];
+static int32_t *ENV_CURVE;
/* multiple table */
  #define ML 2
@@ -1090,6 +1090,7 @@ FM_OPL *OPLCreate(int clock, int rate)
        OPL->clock = clock;
        OPL->rate  = rate;
        OPL->max_ch = max_ch;
+    ENV_CURVE = g_new(int32_t, 2 * EG_ENT + 1);

Should we use g_new0() ?

No because the array is filled before being used. I can add a note about this.


        /* init grobal tables */
        OPL_initialize(OPL);
        /* reset chip */
@@ -1127,6 +1128,7 @@ void OPLDestroy(FM_OPL *OPL)
  #endif
        OPL_UnLockTable();
        free(OPL);
+    g_free(ENV_CURVE);

Just for curiosity, here the entire fmopl.c is indented with tabs.

In this case, is it better to continue with the tabs or use spaces
for new changes?

Anyway the changes LGTM:
Reviewed-by: Stefano Garzarella <address@hidden>





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