libadfhwc: support hwc2 display attributes
adf_getDisplayAttributes_hwc2 gets the display attributes using the updated
enums from HWC2
Test: run gtests located in frameworks/native/services/surfaceflinger/tests/hwc2
Change-Id: I31325c764ccaf65c6d970727b56327d24c7b16d8
diff --git a/adf/libadfhwc/adfhwc.cpp b/adf/libadfhwc/adfhwc.cpp
index a97862a..df2300e 100644
--- a/adf/libadfhwc/adfhwc.cpp
+++ b/adf/libadfhwc/adfhwc.cpp
@@ -166,6 +166,57 @@
return 0;
}
+static int32_t adf_display_attribute_hwc2(const adf_interface_data &data,
+ const drm_mode_modeinfo &mode, const uint32_t attribute)
+{
+ switch (attribute) {
+ case HWC2_ATTRIBUTE_VSYNC_PERIOD:
+ if (mode.vrefresh)
+ return 1000000000 / mode.vrefresh;
+ return 0;
+
+ case HWC2_ATTRIBUTE_WIDTH:
+ return mode.hdisplay;
+
+ case HWC2_ATTRIBUTE_HEIGHT:
+ return mode.vdisplay;
+
+ case HWC2_ATTRIBUTE_DPI_X:
+ return dpi(mode.hdisplay, data.width_mm);
+
+ case HWC2_ATTRIBUTE_DPI_Y:
+ return dpi(mode.vdisplay, data.height_mm);
+
+ default:
+ ALOGE("unknown display attribute %u", attribute);
+ return -EINVAL;
+ }
+}
+
+int adf_getDisplayAttributes_hwc2(struct adf_hwc_helper *dev, int disp,
+ uint32_t config, const uint32_t *attributes, int32_t *values)
+{
+ if ((size_t)disp >= dev->intf_fds.size())
+ return -EINVAL;
+
+ if (config >= dev->display_configs.size())
+ return -EINVAL;
+
+ adf_interface_data data;
+ int err = adf_get_interface_data(dev->intf_fds[disp], &data);
+ if (err < 0) {
+ ALOGE("failed to get ADF interface data: %s", strerror(err));
+ return err;
+ }
+
+ for (int i = 0; attributes[i] != HWC2_ATTRIBUTE_INVALID; i++)
+ values[i] = adf_display_attribute_hwc2(data,
+ dev->display_configs[config], attributes[i]);
+
+ adf_free_interface_data(&data);
+ return 0;
+}
+
static void handle_adf_event(struct adf_hwc_helper *dev, int disp)
{
adf_event *event;