Proposed SkCanvas API for preLoading textures to VRAM v2.0

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
===================================================================
--- src/gpu/SkGpuDevice.cpp	(revision 13762)
+++ src/gpu/SkGpuDevice.cpp	(working copy)
@@ -25,6 +25,7 @@
 #include "SkImageFilter.h"
 #include "SkMaskFilter.h"
 #include "SkPathEffect.h"
+#include "SkPicture.h"
 #include "SkRRect.h"
 #include "SkStroke.h"
 #include "SkSurface.h"
@@ -1999,3 +2000,37 @@
     this->initFromRenderTarget(context, texture->asRenderTarget(), true);
     fNeedClear = needClear;
 }
+
+class SkGPUAccelData : public SkPicture::SkAccelData {
+public:
+    static const int32_t kGPUID = 0x01;

[bsalomon, 2014/03/12 15:34:34]

Maybe can grab this from an atomic inc at runtime (a la GrEffect class IDs).

[robertphillips, 2014/03/13 12:43:42]

Done.

+
+    SkGPUAccelData() : INHERITED(kGPUID) { }
+
+protected:
+
+private:
+    typedef SkPicture::SkAccelData INHERITED;
+};
+
+void SkGpuDevice::optimize(SkPicture* picture) {
+    SkGPUAccelData* data = SkNEW(SkGPUAccelData);
+
+    picture->setAccelData(data);
+}
+
+bool SkGpuDevice::optimizedRender(SkPicture& picture) {
+    const SkPicture::SkAccelData* data = picture.getAccelData();
+    if (NULL == data) {
+        return false;
+    }
+
+    if (SkGPUAccelData::kGPUID != data->getID()) {
+        return false;
+    }
+
+    const SkGPUAccelData *gpuData = static_cast<const SkGPUAccelData*>(data);
+    gpuData;
+
+    return false;
+}