First pass at implementing Canvas.drawPosText() in GL

Change-Id: Ia3ac347e95d57eb86c63045156c8dbc0572b03cb

4 files changed, 50 insertions, 1 deletions

diff --git a/libs/hwui/DisplayListRenderer.cpp b/libs/hwui/DisplayListRenderer.cpp
index 656a384..824ab4f 100644
--- a/libs/hwui/DisplayListRenderer.cpp
+++ b/libs/hwui/DisplayListRenderer.cpp
@@ -60,6 +60,7 @@ const char* DisplayList::OP_NAMES[] = {
     "DrawLines",
     "DrawPoints",
     "DrawText",
+    "DrawPosText",
     "ResetShader",
     "SetupShader",
     "ResetColorFilter",
@@ -482,6 +483,15 @@ void DisplayList::output(OpenGLRenderer& renderer, uint32_t level) {
                     text.text(), text.length(), count, x, y, paint, length);
             }
             break;
+            case DrawPosText: {
+                getText(&text);
+                int count = getInt();
+                int positionsCount = 0;
+                float* positions = getFloats(positionsCount);
+                SkPaint* paint = getPaint();
+                ALOGD("%s%s %s, %d, %d, %p", (char*) indent, OP_NAMES[op],
+                    text.text(), text.length(), count, paint);
+            }
             case ResetShader: {
                 ALOGD("%s%s", (char*) indent, OP_NAMES[op]);
             }
@@ -844,6 +854,17 @@ bool DisplayList::replay(OpenGLRenderer& renderer, Rect& dirty, uint32_t level)
                 renderer.drawText(text.text(), text.length(), count, x, y, paint, length);
             }
             break;
+            case DrawPosText: {
+                getText(&text);
+                int count = getInt();
+                int positionsCount = 0;
+                float* positions = getFloats(positionsCount);
+                SkPaint* paint = getPaint();
+                DISPLAY_LIST_LOGD("%s%s %s, %d, %d, %p", (char*) indent,
+                        OP_NAMES[op], text.text(), text.length(), count, paint);
+                renderer.drawPosText(text.text(), text.length(), count, positions, paint);
+            }
+            break;
             case ResetShader: {
                 DISPLAY_LIST_LOGD("%s%s", (char*) indent, OP_NAMES[op]);
                 renderer.resetShader();
@@ -1216,6 +1237,17 @@ void DisplayListRenderer::drawText(const char* text, int bytesCount, int count,
     addFloat(length < 0.0f ? paint->measureText(text, bytesCount) : length);
 }
 
+void DisplayListRenderer::drawPosText(const char* text, int bytesCount, int count,
+        const float* positions, SkPaint* paint) {
+    if (count <= 0) return;
+    addOp(DisplayList::DrawPosText);
+    addText(text, bytesCount);
+    addInt(count);
+    addFloats(positions, count * 2);
+    paint->setAntiAlias(true);
+    addPaint(paint);
+}
+
 void DisplayListRenderer::resetShader() {
     addOp(DisplayList::ResetShader);
 }
diff --git a/libs/hwui/DisplayListRenderer.h b/libs/hwui/DisplayListRenderer.h
index 5d922db..dd7ec4f 100644
--- a/libs/hwui/DisplayListRenderer.h
+++ b/libs/hwui/DisplayListRenderer.h
@@ -96,6 +96,7 @@ public:
         DrawLines,
         DrawPoints,
         DrawText,
+        DrawPosText,
         ResetShader,
         SetupShader,
         ResetColorFilter,
@@ -291,6 +292,8 @@ public:
     virtual void drawPoints(float* points, int count, SkPaint* paint);
     virtual void drawText(const char* text, int bytesCount, int count, float x, float y,
             SkPaint* paint, float length = 1.0f);
+    virtual void drawPosText(const char* text, int bytesCount, int count, const float* positions,
+            SkPaint* paint);
 
     virtual void resetShader();
     virtual void setupShader(SkiaShader* shader);
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 12ed205..6ec87f3 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -2082,6 +2082,17 @@ void OpenGLRenderer::drawRect(float left, float top, float right, float bottom,
     }
 }
 
+void OpenGLRenderer::drawPosText(const char* text, int bytesCount, int count,
+        const float* positions, SkPaint* paint) {
+    if (text == NULL || count == 0) {
+        return;
+    }
+    if (mSnapshot->isIgnored()) return;
+
+    // TODO: implement properly
+    drawText(text, bytesCount, count, 0, 0, paint);
+}
+
 void OpenGLRenderer::drawText(const char* text, int bytesCount, int count,
         float x, float y, SkPaint* paint, float length) {
     if (text == NULL || count == 0) {
@@ -2120,10 +2131,11 @@ void OpenGLRenderer::drawText(const char* text, int bytesCount, int count,
         y = (int) floorf(y + mSnapshot->transform->getTranslateY() + 0.5f);
     }
 
-    FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint);
 #if DEBUG_GLYPHS
     ALOGD("OpenGLRenderer drawText() with FontID=%d", SkTypeface::UniqueID(paint->getTypeface()));
 #endif
+
+    FontRenderer& fontRenderer = mCaches.fontRenderer.getFontRenderer(paint);
     fontRenderer.setFont(paint, SkTypeface::UniqueID(paint->getTypeface()),
             paint->getTextSize());
 
diff --git a/libs/hwui/OpenGLRenderer.h b/libs/hwui/OpenGLRenderer.h
index 019e9b2..a9cda47 100644
--- a/libs/hwui/OpenGLRenderer.h
+++ b/libs/hwui/OpenGLRenderer.h
@@ -124,6 +124,8 @@ public:
     virtual void drawPoints(float* points, int count, SkPaint* paint);
     virtual void drawText(const char* text, int bytesCount, int count, float x, float y,
             SkPaint* paint, float length = -1.0f);
+    virtual void drawPosText(const char* text, int bytesCount, int count, const float* positions,
+            SkPaint* paint);
 
     virtual void resetShader();
     virtual void setupShader(SkiaShader* shader);