Update all callsites to use info for pixelrefs

#define SK_SUPPORT_LEGACY_PIXELREF_CONSTRUCTOR in chrome to keep old API signature (for now)

BUG=
R=scroggo@google.com

Review URL: https://codereview.chromium.org/100723005

git-svn-id: http://skia.googlecode.com/svn/trunk@12677 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrSurface.cpp b/src/gpu/GrSurface.cpp
index fed95f2..1fcc4ff 100644
--- a/src/gpu/GrSurface.cpp
+++ b/src/gpu/GrSurface.cpp
@@ -8,9 +8,19 @@
 #include "GrSurface.h"
 
 #include "SkBitmap.h"
+#include "SkGr.h"
 #include "SkImageEncoder.h"
 #include <stdio.h>
 
+void GrSurface::asImageInfo(SkImageInfo* info) const {
+    if (!GrPixelConfig2ColorType(this->config(), &info->fColorType)) {
+        sk_throw();
+    }
+    info->fWidth = this->width();
+    info->fHeight = this->height();
+    info->fAlphaType = kPremul_SkAlphaType;
+}
+
 bool GrSurface::savePixels(const char* filename) {
     SkBitmap bm;
     bm.setConfig(SkBitmap::kARGB_8888_Config, this->width(), this->height());
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index ce02f2c..a413d04 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -214,7 +214,10 @@
     if (NULL == surface) {
         surface = fRenderTarget;
     }
-    SkPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (surface, cached));
+
+    SkImageInfo info;
+    surface->asImageInfo(&info);
+    SkPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (info, surface, cached));
 
     this->setPixelRef(pr, 0)->unref();
 }
@@ -224,8 +227,8 @@
                          int width,
                          int height,
                          int sampleCount)
-    : SkBitmapDevice(make_bitmap(config, width, height, false /*isOpaque*/)) {
-
+    : SkBitmapDevice(make_bitmap(config, width, height, false /*isOpaque*/))
+{
     fDrawProcs = NULL;
 
     fContext = context;
@@ -245,6 +248,14 @@
     desc.fConfig = SkBitmapConfig2GrPixelConfig(config);
     desc.fSampleCnt = sampleCount;
 
+    SkImageInfo info;
+    if (!GrPixelConfig2ColorType(desc.fConfig, &info.fColorType)) {
+        sk_throw();
+    }
+    info.fWidth = width;
+    info.fHeight = height;
+    info.fAlphaType = kPremul_SkAlphaType;
+        
     SkAutoTUnref<GrTexture> texture(fContext->createUncachedTexture(desc, NULL, 0));
 
     if (NULL != texture) {
@@ -254,7 +265,7 @@
         SkASSERT(NULL != fRenderTarget);
 
         // wrap the bitmap with a pixelref to expose our texture
-        SkGrPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (texture));
+        SkGrPixelRef* pr = SkNEW_ARGS(SkGrPixelRef, (info, texture));
         this->setPixelRef(pr, 0)->unref();
     } else {
         GrPrintf("--- failed to create gpu-offscreen [%d %d]\n",
@@ -840,11 +851,12 @@
 }
 
 SkBitmap wrap_texture(GrTexture* texture) {
+    SkImageInfo info;
+    texture->asImageInfo(&info);
+
     SkBitmap result;
-    bool dummy;
-    SkBitmap::Config config = grConfig2skConfig(texture->config(), &dummy);
-    result.setConfig(config, texture->width(), texture->height());
-    result.setPixelRef(SkNEW_ARGS(SkGrPixelRef, (texture)))->unref();
+    result.setConfig(info);
+    result.setPixelRef(SkNEW_ARGS(SkGrPixelRef, (info, texture)))->unref();
     return result;
 }
 
diff --git a/src/gpu/SkGr.cpp b/src/gpu/SkGr.cpp
index c7ae0c8..a3f0eef 100644
--- a/src/gpu/SkGr.cpp
+++ b/src/gpu/SkGr.cpp
@@ -258,3 +258,33 @@
             return kUnknown_GrPixelConfig;
     }
 }
+
+bool GrPixelConfig2ColorType(GrPixelConfig config, SkColorType* ctOut) {
+    SkColorType ct;
+    switch (config) {
+        case kAlpha_8_GrPixelConfig:
+            ct = kAlpha_8_SkColorType;
+            break;
+        case kIndex_8_GrPixelConfig:
+            ct = kIndex_8_SkColorType;
+            break;
+        case kRGB_565_GrPixelConfig:
+            ct = kRGB_565_SkColorType;
+            break;
+        case kRGBA_4444_GrPixelConfig:
+            ct = kARGB_4444_SkColorType;
+            break;
+        case kRGBA_8888_GrPixelConfig:
+            ct = kRGBA_8888_SkColorType;
+            break;
+        case kBGRA_8888_GrPixelConfig:
+            ct = kBGRA_8888_SkColorType;
+            break;
+        default:
+            return false;
+    }
+    if (ctOut) {
+        *ctOut = ct;
+    }
+    return true;
+}
diff --git a/src/gpu/SkGrPixelRef.cpp b/src/gpu/SkGrPixelRef.cpp
index 0129426..ddd60ff 100644
--- a/src/gpu/SkGrPixelRef.cpp
+++ b/src/gpu/SkGrPixelRef.cpp
@@ -18,11 +18,10 @@
 // to avoid deadlock with the default one provided by SkPixelRef.
 SK_DECLARE_STATIC_MUTEX(gROLockPixelsPixelRefMutex);
 
-SkROLockPixelsPixelRef::SkROLockPixelsPixelRef() : INHERITED(&gROLockPixelsPixelRefMutex) {
-}
+SkROLockPixelsPixelRef::SkROLockPixelsPixelRef(const SkImageInfo& info)
+    : INHERITED(info, &gROLockPixelsPixelRefMutex) {}
 
-SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() {
-}
+SkROLockPixelsPixelRef::~SkROLockPixelsPixelRef() {}
 
 void* SkROLockPixelsPixelRef::onLockPixels(SkColorTable** ctable) {
     if (ctable) {
@@ -76,6 +75,14 @@
     desc.fFlags = kRenderTarget_GrTextureFlagBit | kNoStencil_GrTextureFlagBit;
     desc.fConfig = SkBitmapConfig2GrPixelConfig(dstConfig);
 
+    SkImageInfo info;
+    if (!GrPixelConfig2ColorType(desc.fConfig, &info.fColorType)) {
+        return NULL;
+    }
+    info.fWidth = desc.fWidth;
+    info.fHeight = desc.fHeight;
+    info.fAlphaType = kPremul_SkAlphaType;
+    
     GrTexture* dst = context->createUncachedTexture(desc, NULL, 0);
     if (NULL == dst) {
         return NULL;
@@ -93,31 +100,15 @@
     dst->releaseRenderTarget();
 #endif
 
-    SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (dst));
+    SkGrPixelRef* pixelRef = SkNEW_ARGS(SkGrPixelRef, (info, dst));
     SkSafeUnref(dst);
     return pixelRef;
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 
-SkGrPixelRef::SkGrPixelRef(GrSurface* surface, bool transferCacheLock) {
-    // TODO: figure out if this is responsible for Chrome canvas errors
-#if 0
-    // The GrTexture has a ref to the GrRenderTarget but not vice versa.
-    // If the GrTexture exists take a ref to that (rather than the render
-    // target)
-    fSurface = surface->asTexture();
-#else
-    fSurface = NULL;
-#endif
-    if (NULL == fSurface) {
-        fSurface = surface;
-    }
-    fUnlock = transferCacheLock;
-    SkSafeRef(surface);
-}
-
-SkGrPixelRef::SkGrPixelRef(const SkImageInfo&, GrSurface* surface, bool transferCacheLock) {
+SkGrPixelRef::SkGrPixelRef(const SkImageInfo& info, GrSurface* surface,
+                           bool transferCacheLock) : INHERITED(info) {
     // TODO: figure out if this is responsible for Chrome canvas errors
 #if 0
     // The GrTexture has a ref to the GrRenderTarget but not vice versa.