Revert of Sketch DM refactor. (patchset #45 id:850001 of https://codereview.chromium.org/788243008/)
Reason for revert:
plenty of data
Original issue's description:
> Sketch DM refactor.
>
> BUG=skia:3255
>
>
> I think this supports everything DM used to, but has completely refactored how
> it works to fit the design in the bug.
>
> Configs like "tiles-gpu" are automatically wired up.
>
> I wouldn't suggest looking at this as a diff. There's just a bunch of deleted
> files, a few new files, and one new file that shares a name with a deleted file
> (DM.cpp).
>
> NOTREECHECKS=true
>
> Committed: https://skia.googlesource.com/skia/+/709d2c3e5062c5b57f91273bfc11a751f5b2bb88
TBR=bsalomon@google.com,mtklein@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=skia:3255
Review URL: https://codereview.chromium.org/853883004
diff --git a/dm/DMImageTask.cpp b/dm/DMImageTask.cpp
new file mode 100644
index 0000000..1657984
--- /dev/null
+++ b/dm/DMImageTask.cpp
@@ -0,0 +1,78 @@
+#include "DMImageTask.h"
+#include "DMUtil.h"
+#include "DMWriteTask.h"
+#include "SkImageDecoder.h"
+#include "SkRandom.h"
+
+#include <string.h>
+
+namespace DM {
+
+// This converts file names like "mandrill_128.r11.ktx" into
+// "mandrill-128-r11_ktx" or "mandrill-128-r11-5-subsets_ktx".
+static SkString task_name(SkString filename, int subsets) {
+ const char* ext = strrchr(filename.c_str(), '.');
+ SkString name(filename.c_str(), ext - filename.c_str());
+ if (subsets > 0) {
+ name.appendf("_%d_subsets", subsets);
+ }
+ name = FileToTaskName(name); // Promote any stray '.' in the filename to '_'.
+ name.append(ext); // Tack on the extension, including the '.'.
+ return FileToTaskName(name); // Promote that last '.' to '_', other '_' to '-'.
+}
+
+ImageTask::ImageTask(Reporter* r, TaskRunner* t, const SkData* encoded, SkString name, int subsets)
+ : CpuTask(r, t)
+ , fEncoded(SkRef(encoded))
+ , fName(task_name(name, subsets))
+ , fSubsets(subsets) {}
+
+void ImageTask::draw() {
+ if (fSubsets == 0) {
+ // Decoding the whole image is considerably simpler than decoding subsets!
+ SkBitmap bitmap;
+ if (!SkImageDecoder::DecodeMemory(fEncoded->data(), fEncoded->size(), &bitmap)) {
+ return this->fail("Can't DecodeMemory");
+ }
+ this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "image", bitmap)));
+ return;
+ }
+
+ SkMemoryStream stream(fEncoded->data(), fEncoded->size());
+ SkAutoTDelete<SkImageDecoder> decoder(SkImageDecoder::Factory(&stream));
+ if (!decoder) {
+ return this->fail("Can't find good decoder.");
+ }
+
+ int w,h;
+ if (!decoder->buildTileIndex(&stream, &w, &h) || w*h == 1) {
+ return; // Subset decoding is not always supported.
+ }
+
+ SkBitmap composite;
+ composite.allocN32Pixels(w,h); // We're lazy here and just always use native 8888.
+ composite.eraseColor(SK_ColorTRANSPARENT);
+ SkCanvas canvas(composite);
+
+ SkRandom rand;
+ for (int i = 0; i < fSubsets; i++) {
+ SkIRect rect;
+ do {
+ rect.fLeft = rand.nextULessThan(w);
+ rect.fTop = rand.nextULessThan(h);
+ rect.fRight = rand.nextULessThan(w);
+ rect.fBottom = rand.nextULessThan(h);
+ rect.sort();
+ } while (rect.isEmpty());
+
+ SkBitmap subset;
+ if (!decoder->decodeSubset(&subset, rect, kN32_SkColorType)) {
+ return this->fail("Could not decode subset.");
+ }
+ canvas.drawBitmap(subset, SkIntToScalar(rect.fLeft), SkIntToScalar(rect.fTop));
+ }
+ canvas.flush();
+ this->spawnChild(SkNEW_ARGS(WriteTask, (*this, "image", composite)));
+}
+
+} // namespace DM