LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Use asynchronous commit ioctl for display post

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bug: 7274951

Change-Id: I70b2a00d6a2558f533bd87c92038774126434f03
This commit is contained in:
Naseer Ahmed
2012-10-01 18:45:13 -04:00
committed by Iliyan Malchev
parent ff4f0254be
commit 32aa90fc54
2 changed files with 8 additions and 1 deletions
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3
libgralloc/fb_priv.h
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@@ -18,6 +18,7 @@
#ifndef FB_PRIV_H
#define FB_PRIV_H
#include <linux/fb.h>
#include <linux/msm_mdp.h>
#define NUM_FRAMEBUFFERS_MIN 2
#define NUM_FRAMEBUFFERS_MAX 3
@@ -44,6 +45,8 @@ struct private_module_t {
pthread_mutex_t lock;
private_handle_t *currentBuffer;
struct fb_var_screeninfo info;
struct mdp_buf_fence fence;
struct mdp_display_commit commit;
struct fb_fix_screeninfo finfo;
float xdpi;
float ydpi;

6
libgralloc/framebuffer.cpp
View File

@@ -111,7 +111,8 @@ static int fb_post(struct framebuffer_device_t* dev, buffer_handle_t buffer)
if (hnd && hnd->flags & private_handle_t::PRIV_FLAGS_FRAMEBUFFER) {
m->info.activate = FB_ACTIVATE_VBL | FB_ACTIVATE_FORCE;
m->info.yoffset = hnd->offset / m->finfo.line_length;
if (ioctl(m->framebuffer->fd, FBIOPUT_VSCREENINFO, &m->info) == -1) {
m->commit.var = m->info;
if (ioctl(m->framebuffer->fd, MSMFB_DISPLAY_COMMIT, &m->commit) == -1) {
ALOGE("%s: FBIOPUT_VSCREENINFO failed for external, err: %s", __FUNCTION__,
strerror(errno));
return -errno;
@@ -152,6 +153,9 @@ int mapFrameBufferLocked(struct private_module_t* module)
if (fd < 0)
return -errno;
memset(&module->fence, 0, sizeof(struct mdp_buf_fence));
memset(&module->commit, 0, sizeof(struct mdp_display_commit));
struct fb_fix_screeninfo finfo;
if (ioctl(fd, FBIOGET_FSCREENINFO, &finfo) == -1)
return -errno;