LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Change default app buffers count for ferrum.

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Set application buffer count to "2" based on
*RAM size(512 and below)
*Screen Resolution(qHd and below)

Change-Id: I40a6c5f93611e7122b038767d49b3b6344a1d715
This commit is contained in:
Ramakant Singh
2014-09-30 19:01:54 +05:30
parent 1192cd2bd6
commit 98c533c60c
1 changed files with 29 additions and 0 deletions
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29
libhwcomposer/hwc_utils.cpp
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@@ -43,6 +43,7 @@
#include "comptype.h" #include "comptype.h"
#include "hwc_virtual.h" #include "hwc_virtual.h"
#include "qd_utils.h" #include "qd_utils.h"
#include <sys/sysinfo.h>
using namespace qClient; using namespace qClient;
using namespace qService; using namespace qService;
@@ -73,6 +74,11 @@ EGLAPI EGLBoolean eglGpuPerfHintQCOM(EGLDisplay dpy, EGLContext ctx,
#endif #endif
#endif #endif
#define PROP_DEFAULT_APPBUFFER "ro.sf.default_app_buffer"
#define MAX_RAM_SIZE 512*1024*1024
#define qHD_WIDTH 540
namespace qhwc { namespace qhwc {
//Std refresh rates for digital videos- 24p, 30p and 48p //Std refresh rates for digital videos- 24p, 30p and 48p
@@ -232,6 +238,25 @@ static int openFramebufferDevice(hwc_context_t *ctx)
return 0; return 0;
} }
static void changeDefaultAppBufferCount() {
struct sysinfo info;
unsigned long int ramSize = 0;
if (!sysinfo(&info)) {
ramSize = info.totalram ;
}
int fb_fd = -1;
struct fb_var_screeninfo sInfo ={0};
fb_fd = open("/dev/graphics/fb0", O_RDONLY);
if (fb_fd >=0) {
ioctl(fb_fd, FBIOGET_VSCREENINFO, &sInfo);
close(fb_fd);
}
if ((ramSize && ramSize < MAX_RAM_SIZE) &&
(sInfo.xres && sInfo.xres <= qHD_WIDTH )) {
property_set(PROP_DEFAULT_APPBUFFER, "2");
}
}
void initContext(hwc_context_t *ctx) void initContext(hwc_context_t *ctx)
{ {
openFramebufferDevice(ctx); openFramebufferDevice(ctx);
@@ -243,6 +268,10 @@ void initContext(hwc_context_t *ctx)
ctx->mOverlay = overlay::Overlay::getInstance(); ctx->mOverlay = overlay::Overlay::getInstance();
ctx->mRotMgr = RotMgr::getInstance(); ctx->mRotMgr = RotMgr::getInstance();
//default_app_buffer for ferrum
if (ctx->mMDP.version == qdutils::MDP_V3_0_5) {
changeDefaultAppBufferCount();
}
// Initialize composition objects for the primary display // Initialize composition objects for the primary display
initCompositionResources(ctx, HWC_DISPLAY_PRIMARY); initCompositionResources(ctx, HWC_DISPLAY_PRIMARY);