SkGpuDevice: Delay locking bitmap pixels until we have a known texture cache miss.

Reivew URL: https://codereview.chromium.org/15035004/



git-svn-id: http://skia.googlecode.com/svn/trunk@9043 2bbb7eff-a529-9590-31e7-b0007b416f81

2 files changed, 5 insertions, 7 deletions

diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index 837ff8c245..22f01f92e8 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -1367,12 +1367,6 @@ void SkGpuDevice::internalDrawBitmap(const SkBitmap& bitmap,
     SkASSERT(bitmap.width() <= fContext->getMaxTextureSize() &&
              bitmap.height() <= fContext->getMaxTextureSize());
 
-    SkAutoLockPixels alp(bitmap, !bitmap.getTexture());
-    if (!bitmap.getTexture() && !bitmap.readyToDraw()) {
-        SkDebugf("nothing to draw\n");
-        return;
-    }
-
     GrTexture* texture;
     SkAutoCachedTexture act(this, bitmap, &params, &texture);
     if (NULL == texture) {
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index d76a34a1cf..1a330344a7 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -24,7 +24,7 @@
 static void build_compressed_data(void* buffer, const SkBitmap& bitmap) {
     SkASSERT(SkBitmap::kIndex8_Config == bitmap.config());
 
-    SkAutoLockPixels apl(bitmap);
+    SkAutoLockPixels alp(bitmap);
     if (!bitmap.readyToDraw()) {
         SkDEBUGFAIL("bitmap not ready to draw!");
         return;
@@ -135,6 +135,10 @@ static GrTexture* sk_gr_create_bitmap_texture(GrContext* ctx,
         }
     }
 
+    SkAutoLockPixels alp(*bitmap);
+    if (!bitmap->readyToDraw()) {
+        return NULL;
+    }
     if (cache) {
         // This texture is likely to be used again so leave it in the cache
         GrCacheID cacheID;