void setListStats(hwc_context_t *ctx,
const hwc_display_contents_1_t *list, int dpy) {
ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
ctx->listStats[dpy].skipCount = 0;
ctx->listStats[dpy].needsAlphaScale = false;
ctx->listStats[dpy].yuvCount = 0;
for (size_t i = 0; i < list->numHwLayers; i++) {
hwc_layer_1_t const* layer = &list->hwLayers[i];
private_handle_t *hnd = (private_handle_t *)layer->handle;
//reset stored yuv index
ctx->listStats[dpy].yuvIndices[i] = -1;
if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
continue;
//We disregard FB being skip for now! so the else if
} else if (isSkipLayer(&list->hwLayers[i])) {
ctx->listStats[dpy].skipCount++;
} else if (UNLIKELY(isYuvBuffer(hnd))) {
int& yuvCount = ctx->listStats[dpy].yuvCount;
ctx->listStats[dpy].yuvIndices[yuvCount] = i;
yuvCount++;
}
if(!ctx->listStats[dpy].needsAlphaScale)
ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
}
}
void setListStats(hwc_context_t *ctx,
const hwc_display_contents_1_t *list, int dpy) {
const int prevYuvCount = ctx->listStats[dpy].yuvCount;
ctx->listStats[dpy].numAppLayers = list->numHwLayers - 1;
ctx->listStats[dpy].fbLayerIndex = list->numHwLayers - 1;
ctx->listStats[dpy].skipCount = 0;
ctx->listStats[dpy].needsAlphaScale = false;
ctx->listStats[dpy].preMultipliedAlpha = false;
ctx->listStats[dpy].planeAlpha = false;
ctx->listStats[dpy].yuvCount = 0;
//reset yuv indices
memset(ctx->listStats[dpy].yuvIndices, -1, MAX_NUM_APP_LAYERS);
for (size_t i = 0; i < (list->numHwLayers - 1); i++) {
hwc_layer_1_t const* layer = &list->hwLayers[i];
private_handle_t *hnd = (private_handle_t *)layer->handle;
// continue if i reaches MAX_NUM_APP_LAYERS
if(i >= MAX_NUM_APP_LAYERS)
continue;
if(list->hwLayers[i].compositionType == HWC_FRAMEBUFFER_TARGET) {
continue;
//We disregard FB being skip for now! so the else if
} else if (isSkipLayer(&list->hwLayers[i])) {
ctx->listStats[dpy].skipCount++;
} else if (UNLIKELY(isYuvBuffer(hnd))) {
int& yuvCount = ctx->listStats[dpy].yuvCount;
ctx->listStats[dpy].yuvIndices[yuvCount] = i;
yuvCount++;
if(layer->transform & HWC_TRANSFORM_ROT_90)
ctx->mNeedsRotator = true;
}
if(layer->blending == HWC_BLENDING_PREMULT)
ctx->listStats[dpy].preMultipliedAlpha = true;
if(layer->planeAlpha < 0xFF)
ctx->listStats[dpy].planeAlpha = true;
if(!ctx->listStats[dpy].needsAlphaScale)
ctx->listStats[dpy].needsAlphaScale = isAlphaScaled(layer);
}
//The marking of video begin/end is useful on some targets where we need
//to have a padding round to be able to shift pipes across mixers.
if(prevYuvCount != ctx->listStats[dpy].yuvCount) {
ctx->mVideoTransFlag = true;
}
if (dpy == HWC_DISPLAY_PRIMARY)
configurePPD(ctx, ctx->listStats[dpy].yuvCount);
}