LineageOS/android_vendor_qcom_opensource_display-commonsys-intf
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hwc: Add dynamic fps support for PPP

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Some apps like camera and video are running on
less fps than panel refresh rate. Hence setting
dynamic fps will help in reducing BW voting for PPP.

Change-Id: I236fe96d5c6547044083774388887638f9e32958
This commit is contained in:
Ramakant Singh
2015-01-08 23:45:04 +05:30
committed by Gerrit - the friendly Code Review server
parent a7696ddf86
commit 140965d6a4
3 changed files with 20 additions and 3 deletions
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13
libcopybit/copybit.cpp
View File

@@ -64,6 +64,7 @@ struct copybit_context_t {
int relFence;
struct mdp_buf_sync sync;
struct blitReq list;
uint8_t dynamic_fps;
};
/**
@@ -219,6 +220,7 @@ static void set_infos(struct copybit_context_t *dev,
struct mdp_blit_req *req, int flags)
{
req->alpha = dev->mAlpha;
req->fps = dev->dynamic_fps;
req->transp_mask = MDP_TRANSP_NOP;
req->flags = dev->mFlags | flags;
// check if we are blitting to f/b
@@ -250,7 +252,7 @@ static int msm_copybit(struct copybit_context_t *dev, void const *list)
for (unsigned int i=0 ; i<l->count ; i++) {
ALOGE("%d: src={w=%d, h=%d, f=%d, rect={%d,%d,%d,%d}}\n"
" dst={w=%d, h=%d, f=%d, rect={%d,%d,%d,%d}}\n"
" flags=%08x"
" flags=%08x, fps=%d"
,
i,
l->req[i].src.width,
@@ -267,7 +269,8 @@ static int msm_copybit(struct copybit_context_t *dev, void const *list)
l->req[i].dst_rect.y,
l->req[i].dst_rect.w,
l->req[i].dst_rect.h,
l->req[i].flags
l->req[i].flags,
l->req[i].fps
);
}
#endif
@@ -315,6 +318,9 @@ static int set_parameter_copybit(
if (value >= 256) value = 255;
ctx->mAlpha = (uint8_t)value;
break;
case COPYBIT_DYNAMIC_FPS:
ctx->dynamic_fps = (uint8_t)value;
break;
case COPYBIT_DITHER:
if (value == COPYBIT_ENABLE) {
ctx->mFlags |= MDP_DITHER;
@@ -747,6 +753,9 @@ static int open_copybit(const struct hw_module_t* module, const char* name,
ctx->device.flush_get_fence = flush_get_fence;
ctx->device.clear = clear_copybit;
ctx->mAlpha = MDP_ALPHA_NOP;
//dynamic_fps is zero means default
//panel refresh rate for driver.
ctx->dynamic_fps = 0;
ctx->mFlags = 0;
ctx->sync.flags = 0;
ctx->relFence = -1;

1
libcopybit/copybit.h
View File

@@ -79,6 +79,7 @@ enum {
/* FB height */
COPYBIT_FRAMEBUFFER_HEIGHT = 8,
COPYBIT_FG_LAYER = 9,
COPYBIT_DYNAMIC_FPS = 10,
};
/* values for copybit_set_parameter(COPYBIT_TRANSFORM) */

9
libhwcomposer/hwc_copybit.cpp
View File

@@ -810,7 +810,13 @@ int CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
ALOGE("%s: Framebuffer handle is NULL", __FUNCTION__);
return -1;
}
uint32_t dynamic_fps = 0;
#ifdef DYNAMIC_FPS
MetaData_t *mdata = hnd ? (MetaData_t *)hnd->base_metadata : NULL;
if (mdata && (mdata->operation & UPDATE_REFRESH_RATE)) {
dynamic_fps = roundOff(mdata->refreshrate);
}
#endif
// Set the copybit source:
copybit_image_t src;
src.w = getWidth(hnd);
@@ -1025,6 +1031,7 @@ int CopyBit::drawLayerUsingCopybit(hwc_context_t *dev, hwc_layer_1_t *layer,
layerTransform);
//TODO: once, we are able to read layer alpha, update this
copybit->set_parameter(copybit, COPYBIT_PLANE_ALPHA, 255);
copybit->set_parameter(copybit, COPYBIT_DYNAMIC_FPS, dynamic_fps);
copybit->set_parameter(copybit, COPYBIT_BLEND_MODE,
layer->blending);
copybit->set_parameter(copybit, COPYBIT_DITHER,