remove pixelflinger from healthd

The minui library has changed to no longer use libpixelflinger.  It
also offers a more efficient way of storing and loading frames of
animation; use it to represent the battery-full state images.

Also removes the unused battery_charge.png image.

Bug: 12131110
Change-Id: I6cc8b19f36a806c99cda30cc47b5968daf6b333b

healthd/Android.mk

@@ -36,7 +36,7 @@ endif
 
 LOCAL_C_INCLUDES := bootable/recovery
 
-LOCAL_STATIC_LIBRARIES := libbatteryservice libbinder libminui libpixelflinger_static libpng libz libutils libstdc++ libcutils liblog libm libc
+LOCAL_STATIC_LIBRARIES := libbatteryservice libbinder libminui libpng libz libutils libstdc++ libcutils liblog libm libc
 
 ifeq ($(strip $(BOARD_CHARGER_ENABLE_SUSPEND)),true)
 LOCAL_STATIC_LIBRARIES += libsuspend

healthd/healthd_mode_charger.cpp

@@ -81,7 +81,6 @@ struct key_state {
 };
 
 struct frame {
-    const char *name;
     int disp_time;
     int min_capacity;
     bool level_only;
@@ -119,42 +118,36 @@ struct charger {
 
 static struct frame batt_anim_frames[] = {
     {
-        .name = "charger/battery_0",
         .disp_time = 750,
         .min_capacity = 0,
         .level_only = false,
         .surface = NULL,
     },
     {
-        .name = "charger/battery_1",
         .disp_time = 750,
         .min_capacity = 20,
         .level_only = false,
         .surface = NULL,
     },
     {
-        .name = "charger/battery_2",
         .disp_time = 750,
         .min_capacity = 40,
         .level_only = false,
         .surface = NULL,
     },
     {
-        .name = "charger/battery_3",
         .disp_time = 750,
         .min_capacity = 60,
         .level_only = false,
         .surface = NULL,
     },
     {
-        .name = "charger/battery_4",
         .disp_time = 750,
         .min_capacity = 80,
         .level_only = true,
         .surface = NULL,
     },
     {
-        .name = "charger/battery_5",
         .disp_time = 750,
         .min_capacity = BATTERY_FULL_THRESH,
         .level_only = false,
@@ -188,8 +181,8 @@ static int64_t curr_time_ms(void)
 static void clear_screen(void)
 {
     gr_color(0, 0, 0, 255);
-    gr_fill(0, 0, gr_fb_width(), gr_fb_height());
-};
+    gr_clear();
+}
 
 #define MAX_KLOG_WRITE_BUF_SZ 256
 
@@ -317,8 +310,8 @@ static void draw_battery(struct charger *charger)
 
     if (batt_anim->num_frames != 0) {
         draw_surface_centered(charger, frame->surface);
-        LOGV("drawing frame #%d name=%s min_cap=%d time=%d\n",
-             batt_anim->cur_frame, frame->name, frame->min_capacity,
+        LOGV("drawing frame #%d min_cap=%d time=%d\n",
+             batt_anim->cur_frame, frame->min_capacity,
              frame->disp_time);
     }
 }
@@ -655,22 +648,27 @@ void healthd_mode_charger_init(struct healthd_config *config)
 
     ret = res_create_surface("charger/battery_fail", &charger->surf_unknown);
     if (ret < 0) {
-        LOGE("Cannot load image\n");
+        LOGE("Cannot load battery_fail image\n");
         charger->surf_unknown = NULL;
     }
 
     charger->batt_anim = &battery_animation;
 
-    for (i = 0; i < charger->batt_anim->num_frames; i++) {
-        struct frame *frame = &charger->batt_anim->frames[i];
-
-        ret = res_create_surface(frame->name, &frame->surface);
-        if (ret < 0) {
-            LOGE("Cannot load image %s\n", frame->name);
-            /* TODO: free the already allocated surfaces... */
-            charger->batt_anim->num_frames = 0;
-            charger->batt_anim->num_cycles = 1;
-            break;
+    gr_surface* scale_frames;
+    int scale_count;
+    ret = res_create_multi_surface("charger/battery_scale", &scale_count, &scale_frames);
+    if (ret < 0) {
+        LOGE("Cannot load battery_scale image\n");
+        charger->batt_anim->num_frames = 0;
+        charger->batt_anim->num_cycles = 1;
+    } else if (scale_count != charger->batt_anim->num_frames) {
+        LOGE("battery_scale image has unexpected frame count (%d, expected %d)\n",
+             scale_count, charger->batt_anim->num_frames);
+        charger->batt_anim->num_frames = 0;
+        charger->batt_anim->num_cycles = 1;
+    } else {
+        for (i = 0; i < charger->batt_anim->num_frames; i++) {
+            charger->batt_anim->frames[i].surface = scale_frames[i];
         }
     }