bootanimation: performance/speedup enhancements (squashed from CM11)

bootanim: Don't cache textures if they're expected to use a lot of VRAM (rmcc)
https://github.com/CyanogenMod/android_frameworks_base/commit/14f9eecd3f543a25c4a2053d6155a9396a777a3a#cmds/bootanimation

bootanimation: performance enhancements (turl)
https://github.com/CyanogenMod/android_frameworks_base/commit/e6b54405aa70d7503a114d9c90ef7518abdd7133#cmds/bootanimation

bootanimation: fix usage of LOGW (intervigilium)
https://github.com/CyanogenMod/android_frameworks_base/commit/e45cf7d232490f44aecf8f2447220a8b5ace4c10#cmds/bootanimation

bootanimation: allow using RGB565 instead of ARGB8888 (tpruvot)
https://github.com/CyanogenMod/android_frameworks_base/commit/204282870a9c69b04ad5ddecd73fafbd7996cbc0#cmds/bootanimation

[mikeioannina]: Adjust for cm-12.0

Change-Id: I203fa23f77d1349fb822a7662e2cd3998ba4c814

2 files changed, 61 insertions, 1 deletions

diff --git a/cmds/bootanimation/Android.mk b/cmds/bootanimation/Android.mk
index a2d5675..0c05ded 100644
--- a/cmds/bootanimation/Android.mk
+++ b/cmds/bootanimation/Android.mk
@@ -30,6 +30,22 @@ ifeq ($(TARGET_CONTINUOUS_SPLASH_ENABLED),true)
     LOCAL_CFLAGS += -DCONTINUOUS_SPLASH
 endif
 
+ifeq ($(TARGET_BOOTANIMATION_PRELOAD),true)
+    LOCAL_CFLAGS += -DPRELOAD_BOOTANIMATION
+endif
+
+ifeq ($(TARGET_BOOTANIMATION_TEXTURE_CACHE),true)
+    LOCAL_CFLAGS += -DNO_TEXTURE_CACHE=0
+endif
+
+ifeq ($(TARGET_BOOTANIMATION_TEXTURE_CACHE),false)
+    LOCAL_CFLAGS += -DNO_TEXTURE_CACHE=1
+endif
+
+ifeq ($(TARGET_BOOTANIMATION_USE_RGB565),true)
+    LOCAL_CFLAGS += -DUSE_565
+endif
+
 LOCAL_MODULE:= bootanimation
 
 ifdef TARGET_32_BIT_SURFACEFLINGER
diff --git a/cmds/bootanimation/BootAnimation.cpp b/cmds/bootanimation/BootAnimation.cpp
index e92e826..934539e 100644
--- a/cmds/bootanimation/BootAnimation.cpp
+++ b/cmds/bootanimation/BootAnimation.cpp
@@ -271,7 +271,11 @@ status_t BootAnimation::initTexture(const Animation::Frame& frame)
     if (codec != NULL) {
         codec->setDitherImage(false);
         codec->decode(&stream, &bitmap,
+                #ifdef USE_565
+                kRGB_565_SkColorType,
+                #else
                 kN32_SkColorType,
+                #endif
                 SkImageDecoder::kDecodePixels_Mode);
         delete codec;
     }
@@ -425,6 +429,37 @@ status_t BootAnimation::readyToRun() {
         mZip = zipFile;
     }
 
+#ifdef PRELOAD_BOOTANIMATION
+    // Preload the bootanimation zip on memory, so we don't stutter
+    // when showing the animation
+    FILE* fd;
+    if (encryptedAnimation && access(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, R_OK) == 0)
+        fd = fopen(SYSTEM_ENCRYPTED_BOOTANIMATION_FILE, "r");
+    else if (access(OEM_BOOTANIMATION_FILE, R_OK) == 0)
+        fd = fopen(OEM_BOOTANIMATION_FILE, "r");
+    else if (access(SYSTEM_BOOTANIMATION_FILE, R_OK) == 0)
+        fd = fopen(SYSTEM_BOOTANIMATION_FILE, "r");
+    else
+        return NO_ERROR;
+
+    if (fd != NULL) {
+        // We could use readahead..
+        // ... if bionic supported it :(
+        //readahead(fd, 0, INT_MAX);
+        void *crappyBuffer = malloc(2*1024*1024);
+        if (crappyBuffer != NULL) {
+            // Read all the zip
+            while (!feof(fd))
+                fread(crappyBuffer, 1024, 2*1024, fd);
+
+            free(crappyBuffer);
+        } else {
+            ALOGW("Unable to allocate memory to preload the animation");
+        }
+        fclose(fd);
+    }
+#endif
+
     return NO_ERROR;
 }
 
@@ -717,6 +752,15 @@ bool BootAnimation::movie()
     for (size_t i=0 ; i<pcount ; i++) {
         const Animation::Part& part(animation.parts[i]);
         const size_t fcount = part.frames.size();
+
+        // can be 1, 0, or not set
+        #ifdef NO_TEXTURE_CACHE
+        const int noTextureCache = NO_TEXTURE_CACHE;
+        #else
+        const int noTextureCache =
+                ((animation.width * animation.height * fcount) > 48 * 1024 * 1024) ? 1 : 0;
+        #endif
+
         glBindTexture(GL_TEXTURE_2D, 0);
 
         /*calculate if we need to runtime save memory
@@ -728,7 +772,7 @@ bool BootAnimation::movie()
         GLuint mTextureid;
         glGetIntegerv(GL_MAX_TEXTURE_SIZE, &mMaxTextureSize);
         //ALOGD("freemem:%ld, %d", getFreeMemory(), mMaxTextureSize);
-        if(getFreeMemory() < mMaxTextureSize * mMaxTextureSize * fcount / 1024) {
+        if(getFreeMemory() < mMaxTextureSize * mMaxTextureSize * fcount / 1024 || noTextureCache) {
             ALOGD("Use save memory method, maybe small fps in actual.");
             needSaveMem = true;
             glGenTextures(1, &mTextureid);