diff options
| author | Simon Glass <sjg@chromium.org> | 2012-09-06 16:57:07 -0700 |
|---|---|---|
| committer | Gerrit <chrome-bot@google.com> | 2012-09-07 00:21:35 -0700 |
| commit | cf67ca4eb3ddbfc1699de1810478f765ac9575b7 (patch) | |
| tree | 04d3c60ac75e76c04d9d3740571132004e407144 /firmware | |
| parent | 2607e39f0eb9fde26297894b646c65d59990bb7b (diff) | |
| download | vboot-cf67ca4eb3ddbfc1699de1810478f765ac9575b7.tar.gz | |
Cache GBB images to speed up display
Rather than read the images from slow flash every time we need them, cache
them the first time and use that cache thereafter.
BUG=none
BRANCH=snow,link
TEST=manual
Go into recovery mode on link
See that we can display a new screen in roughly 20ms instead of the 250ms
it previously took on link.
Also tested on snow and shown to have no ill effects.
Change-Id: Ieb39c44bddeb6315da8983669f19f550888659bd
Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-on: https://gerrit.chromium.org/gerrit/32462
Commit-Ready: Tom Wai-Hong Tam <waihong@chromium.org>
Reviewed-by: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Diffstat (limited to 'firmware')
| -rw-r--r-- | firmware/lib/vboot_display.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/firmware/lib/vboot_display.c b/firmware/lib/vboot_display.c index 16b1ea1a..b15b5183 100644 --- a/firmware/lib/vboot_display.c +++ b/firmware/lib/vboot_display.c @@ -161,7 +161,7 @@ static void VbRenderTextAtPos(char *text, int right_to_left, VbError_t VbDisplayScreenFromGBB(VbCommonParams* cparams, uint32_t screen, VbNvContext *vncptr) { GoogleBinaryBlockHeader* gbb = (GoogleBinaryBlockHeader*)cparams->gbb_data; - uint8_t* bmpfv = NULL; + static uint8_t* bmpfv; void* fullimage = NULL; BmpBlockHeader* hdr; ScreenLayout* layout; @@ -187,8 +187,10 @@ VbError_t VbDisplayScreenFromGBB(VbCommonParams* cparams, uint32_t screen, } /* Copy bitmap data from GBB into RAM for speed */ - bmpfv = (uint8_t*)VbExMalloc(gbb->bmpfv_size); - Memcpy(bmpfv, ((uint8_t*)gbb) + gbb->bmpfv_offset, gbb->bmpfv_size); + if (!bmpfv) { + bmpfv = (uint8_t*)VbExMalloc(gbb->bmpfv_size); + Memcpy(bmpfv, ((uint8_t*)gbb) + gbb->bmpfv_offset, gbb->bmpfv_size); + } /* Sanity-check the bitmap block header */ hdr = (BmpBlockHeader *)bmpfv; @@ -341,8 +343,6 @@ VbError_t VbDisplayScreenFromGBB(VbCommonParams* cparams, uint32_t screen, VbDisplayScreenFromGBB_exit: VBDEBUG(("leaving VbDisplayScreenFromGBB() with %d\n",retval)); - /* Free the bitmap data copy */ - VbExFree(bmpfv); return retval; } |