Polygonal rendering of simple fill shapes

bug:4419017

Change-Id: If0428e1732139786cba15f54b285d880e4a56b89

Author: ChrisCraik

libs/hwui/Android.mk

@@ -21,6 +21,7 @@ ifeq ($(USE_OPENGL_RENDERER),true)
 		LayerRenderer.cpp \
 		Matrix.cpp \
 		OpenGLRenderer.cpp \
+		PathRenderer.cpp \
 		Patch.cpp \
 		PatchCache.cpp \
 		PathCache.cpp \
@@ -34,7 +35,7 @@ ifeq ($(USE_OPENGL_RENDERER),true)
 		Stencil.cpp \
 		TextureCache.cpp \
 		TextDropShadowCache.cpp
-	
+
 	LOCAL_C_INCLUDES += \
 		$(JNI_H_INCLUDE) \
 		$(LOCAL_PATH)/../../include/utils \

libs/hwui/LayerRenderer.cpp

@@ -345,7 +345,7 @@ void LayerRenderer::flushLayer(Layer* layer) {
 
 bool LayerRenderer::copyLayer(Layer* layer, SkBitmap* bitmap) {
     Caches& caches = Caches::getInstance();
-    if (layer && layer->isTextureLayer() && bitmap->width() <= caches.maxTextureSize &&
+    if (layer && bitmap->width() <= caches.maxTextureSize &&
             bitmap->height() <= caches.maxTextureSize) {
 
         GLuint fbo = caches.fboCache.get();
@@ -358,6 +358,7 @@ bool LayerRenderer::copyLayer(Layer* layer, SkBitmap* bitmap) {
 
         GLuint texture;
         GLuint previousFbo;
+        GLuint previousViewport[4];
 
         GLenum format;
         GLenum type;
@@ -387,11 +388,13 @@ bool LayerRenderer::copyLayer(Layer* layer, SkBitmap* bitmap) {
 
         float alpha = layer->getAlpha();
         SkXfermode::Mode mode = layer->getMode();
+        GLuint previousLayerFbo = layer->getFbo();
 
         layer->setAlpha(255, SkXfermode::kSrc_Mode);
         layer->setFbo(fbo);
 
         glGetIntegerv(GL_FRAMEBUFFER_BINDING, (GLint*) &previousFbo);
+        glGetIntegerv(GL_VIEWPORT, (GLint*) &previousViewport);
         glBindFramebuffer(GL_FRAMEBUFFER, fbo);
 
         glGenTextures(1, &texture);
@@ -459,9 +462,11 @@ bool LayerRenderer::copyLayer(Layer* layer, SkBitmap* bitmap) {
 
         glBindFramebuffer(GL_FRAMEBUFFER, previousFbo);
         layer->setAlpha(alpha, mode);
-        layer->setFbo(0);
+        layer->setFbo(previousLayerFbo);
         glDeleteTextures(1, &texture);
         caches.fboCache.put(fbo);
+        glViewport(previousViewport[0], previousViewport[1],
+                previousViewport[2], previousViewport[3]);
 
         return status;
     }

libs/hwui/Matrix.cpp

@@ -55,21 +55,21 @@ void Matrix4::loadIdentity() {
     mSimpleMatrix = true;
 }
 
-bool Matrix4::changesBounds() {
+bool Matrix4::changesBounds() const {
     return !(data[0] == 1.0f && data[1] == 0.0f && data[2] == 0.0f && data[4] == 0.0f &&
              data[5] == 1.0f && data[6] == 0.0f && data[8] == 0.0f && data[9] == 0.0f &&
              data[10] == 1.0f);
 }
 
-bool Matrix4::isPureTranslate() {
+bool Matrix4::isPureTranslate() const {
     return mSimpleMatrix && data[kScaleX] == 1.0f && data[kScaleY] == 1.0f;
 }
 
-bool Matrix4::isSimple() {
+bool Matrix4::isSimple() const {
     return mSimpleMatrix;
 }
 
-bool Matrix4::isIdentity() {
+bool Matrix4::isIdentity() const {
     return mIsIdentity;
 }
 

libs/hwui/Matrix.h

@@ -112,11 +112,11 @@ class ANDROID_API Matrix4 {
         multiply(u);
     }
 
-    bool isPureTranslate();
-    bool isSimple();
-    bool isIdentity();
+    bool isPureTranslate() const;
+    bool isSimple() const;
+    bool isIdentity() const;
 
-    bool changesBounds();
+    bool changesBounds() const;
 
     void copyTo(float* v) const;
     void copyTo(SkMatrix& v) const;