Initial commit of new Canvas operation recording / replay

Done:
- drawRect, drawBitmap, drawColor, drawPaint, drawRenderNode, drawRegion
- Recording with new DisplayList format
- batching & reordering
- Stateless op reorder
- Stateless op rendering
- Frame lifecycle (clear, geterror, cleanup)

Not done:
- SaveLayer (clipped and unclipped)
- HW layers
- Complex clipping
- Ripple projection
- Z reordering
- Z shadows
- onDefer prefetching (text + task kickoff)
- round rect clip
- linear allocation for std collections
- AssetAtlas support

Change-Id: Iaf98c1a3aeab5fa47cc8f9c6d964420abc0e7691
diff --git a/libs/hwui/BakedOpRenderer.cpp b/libs/hwui/BakedOpRenderer.cpp
new file mode 100644
index 0000000..4d9f9b4
--- /dev/null
+++ b/libs/hwui/BakedOpRenderer.cpp
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "BakedOpRenderer.h"
+
+#include "Caches.h"
+#include "Glop.h"
+#include "GlopBuilder.h"
+#include "renderstate/RenderState.h"
+#include "utils/GLUtils.h"
+
+namespace android {
+namespace uirenderer {
+
+Texture* BakedOpRenderer::Info::getTexture(const SkBitmap* bitmap) {
+    Texture* texture = renderState.assetAtlas().getEntryTexture(bitmap);
+    if (!texture) {
+        return caches.textureCache.get(bitmap);
+    }
+    return texture;
+}
+
+void BakedOpRenderer::Info::renderGlop(const BakedOpState& state, const Glop& glop) {
+    bool useScissor = state.computedState.clipSideFlags != OpClipSideFlags::None;
+    renderState.scissor().setEnabled(useScissor);
+    if (useScissor) {
+        const Rect& clip = state.computedState.clipRect;
+        renderState.scissor().set(clip.left, viewportHeight - clip.bottom,
+            clip.getWidth(), clip.getHeight());
+    }
+    renderState.render(glop, orthoMatrix);
+    didDraw = true;
+}
+
+void BakedOpRenderer::startFrame(Info& info) {
+    info.renderState.setViewport(info.viewportWidth, info.viewportHeight);
+    info.renderState.blend().syncEnabled();
+    Caches::getInstance().clearGarbage();
+
+    if (!info.opaque) {
+        // TODO: partial invalidate!
+        info.renderState.scissor().setEnabled(false);
+        glClear(GL_COLOR_BUFFER_BIT);
+        info.didDraw = true;
+    }
+}
+void BakedOpRenderer::endFrame(Info& info) {
+    info.caches.pathCache.trim();
+    info.caches.tessellationCache.trim();
+
+#if DEBUG_OPENGL
+    GLUtils::dumpGLErrors();
+#endif
+
+#if DEBUG_MEMORY_USAGE
+    info.caches.dumpMemoryUsage();
+#else
+    if (Properties::debugLevel & kDebugMemory) {
+        info.caches.dumpMemoryUsage();
+    }
+#endif
+}
+
+void BakedOpRenderer::onRenderNodeOp(Info*, const RenderNodeOp&, const BakedOpState&) {
+    LOG_ALWAYS_FATAL("unsupported operation");
+}
+
+void BakedOpRenderer::onBitmapOp(Info* info, const BitmapOp& op, const BakedOpState& state) {
+    info->caches.textureState().activateTexture(0); // TODO: should this be automatic, and/or elsewhere?
+    Texture* texture = info->getTexture(op.bitmap);
+    if (!texture) return;
+    const AutoTexture autoCleanup(texture);
+
+    const int textureFillFlags = (op.bitmap->colorType() == kAlpha_8_SkColorType)
+            ? TextureFillFlags::IsAlphaMaskTexture : TextureFillFlags::None;
+    Glop glop;
+    GlopBuilder(info->renderState, info->caches, &glop)
+            .setRoundRectClipState(state.roundRectClipState)
+            .setMeshTexturedUnitQuad(texture->uvMapper)
+            .setFillTexturePaint(*texture, textureFillFlags, op.paint, state.alpha)
+            .setTransform(state.computedState.transform, TransformFlags::None)
+            .setModelViewMapUnitToRectSnap(Rect(0, 0, texture->width, texture->height))
+            .build();
+    info->renderGlop(state, glop);
+}
+
+void BakedOpRenderer::onRectOp(Info* info, const RectOp& op, const BakedOpState& state) {
+    Glop glop;
+    GlopBuilder(info->renderState, info->caches, &glop)
+            .setRoundRectClipState(state.roundRectClipState)
+            .setMeshUnitQuad()
+            .setFillPaint(*op.paint, state.alpha)
+            .setTransform(state.computedState.transform, TransformFlags::None)
+            .setModelViewMapUnitToRect(op.unmappedBounds)
+            .build();
+    info->renderGlop(state, glop);
+}
+
+void BakedOpRenderer::onSimpleRectsOp(Info* info, const SimpleRectsOp& op, const BakedOpState& state) {
+    Glop glop;
+    GlopBuilder(info->renderState, info->caches, &glop)
+            .setRoundRectClipState(state.roundRectClipState)
+            .setMeshIndexedQuads(&op.vertices[0], op.vertexCount / 4)
+            .setFillPaint(*op.paint, state.alpha)
+            .setTransform(state.computedState.transform, TransformFlags::None)
+            .setModelViewOffsetRect(0, 0, op.unmappedBounds)
+            .build();
+    info->renderGlop(state, glop);
+}
+
+
+} // namespace uirenderer
+} // namespace android