Rename matrices for consistency

The projection matrix no longer contains viewing transformation, and
has thus been renamed.

Change-Id: I4f85ccdac97f4cb4f987bb05c389816680f1c94f

3 files changed, 19 insertions, 20 deletions

diff --git a/libs/hwui/DisplayListRenderer.cpp b/libs/hwui/DisplayListRenderer.cpp
index c2ce6ed..2391e80 100644
--- a/libs/hwui/DisplayListRenderer.cpp
+++ b/libs/hwui/DisplayListRenderer.cpp
@@ -58,7 +58,7 @@ DisplayListData* DisplayListRenderer::finishRecording() {
 
 void DisplayListRenderer::setViewport(int width, int height) {
     // TODO: DisplayListRenderer shouldn't have a projection matrix, as it should never be used
-    mViewProjMatrix.loadOrtho(0, width, height, 0, -1, 1);
+    mProjectionMatrix.loadOrtho(0, width, height, 0, -1, 1);
 
     initializeViewport(width, height);
 }
diff --git a/libs/hwui/OpenGLRenderer.cpp b/libs/hwui/OpenGLRenderer.cpp
index 87b07b3..77d2680 100644
--- a/libs/hwui/OpenGLRenderer.cpp
+++ b/libs/hwui/OpenGLRenderer.cpp
@@ -170,7 +170,7 @@ void OpenGLRenderer::setViewport(int width, int height) {
 }
 
 void OpenGLRenderer::initViewport(int width, int height) {
-    mViewProjMatrix.loadOrtho(0, width, height, 0, -1, 1);
+    mProjectionMatrix.loadOrtho(0, width, height, 0, -1, 1);
 
     initializeViewport(width, height);
 }
@@ -644,7 +644,7 @@ void OpenGLRenderer::onSnapshotRestored(const Snapshot& removed, const Snapshot&
     if (restoreOrtho) {
         const Rect& r = restored.viewport;
         glViewport(r.left, r.top, r.right, r.bottom);
-        mViewProjMatrix.load(removed.orthoMatrix); // TODO: should ortho be stored in 'restored'?
+        mProjectionMatrix.load(removed.orthoMatrix); // TODO: should ortho be stored in 'restored'?
     }
 
     if (restoreClip) {
@@ -870,7 +870,7 @@ bool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, Rect& clip) {
     mSnapshot->resetClip(clip.left, clip.top, clip.right, clip.bottom);
     mSnapshot->viewport.set(0.0f, 0.0f, bounds.getWidth(), bounds.getHeight());
     mSnapshot->height = bounds.getHeight();
-    mSnapshot->orthoMatrix.load(mViewProjMatrix);
+    mSnapshot->orthoMatrix.load(mProjectionMatrix);
 
     endTiling();
     debugOverdraw(false, false);
@@ -900,8 +900,7 @@ bool OpenGLRenderer::createFboLayer(Layer* layer, Rect& bounds, Rect& clip) {
     // Change the ortho projection
     glViewport(0, 0, bounds.getWidth(), bounds.getHeight());
 
-    // TODO: determine best way to support 3d drawing within HW layers
-    mViewProjMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f);
+    mProjectionMatrix.loadOrtho(0.0f, bounds.getWidth(), bounds.getHeight(), 0.0f, -1.0f, 1.0f);
 
     return true;
 }
@@ -1705,17 +1704,17 @@ void OpenGLRenderer::setupDrawDirtyRegionsDisabled() {
 
 void OpenGLRenderer::setupDrawModelView(ModelViewMode mode, bool offset,
         float left, float top, float right, float bottom, bool ignoreTransform) {
-    mModelView.loadTranslate(left, top, 0.0f);
+    mModelViewMatrix.loadTranslate(left, top, 0.0f);
     if (mode == kModelViewMode_TranslateAndScale) {
-        mModelView.scale(right - left, bottom - top, 1.0f);
+        mModelViewMatrix.scale(right - left, bottom - top, 1.0f);
     }
 
     bool dirty = right - left > 0.0f && bottom - top > 0.0f;
     if (!ignoreTransform) {
-        mCaches.currentProgram->set(mViewProjMatrix, mModelView, *currentTransform(), offset);
+        mCaches.currentProgram->set(mProjectionMatrix, mModelViewMatrix, *currentTransform(), offset);
         if (dirty && mTrackDirtyRegions) dirtyLayer(left, top, right, bottom, *currentTransform());
     } else {
-        mCaches.currentProgram->set(mViewProjMatrix, mModelView, mat4::identity(), offset);
+        mCaches.currentProgram->set(mProjectionMatrix, mModelViewMatrix, mat4::identity(), offset);
         if (dirty && mTrackDirtyRegions) dirtyLayer(left, top, right, bottom);
     }
 }
@@ -1740,11 +1739,11 @@ void OpenGLRenderer::setupDrawShaderUniforms(bool ignoreTransform) {
             // compensate.
             mat4 modelViewWithoutTransform;
             modelViewWithoutTransform.loadInverse(*currentTransform());
-            modelViewWithoutTransform.multiply(mModelView);
-            mModelView.load(modelViewWithoutTransform);
+            modelViewWithoutTransform.multiply(mModelViewMatrix);
+            mModelViewMatrix.load(modelViewWithoutTransform);
         }
         mDrawModifiers.mShader->setupProgram(mCaches.currentProgram,
-                mModelView, *mSnapshot, &mTextureUnit);
+                mModelViewMatrix, *mSnapshot, &mTextureUnit);
     }
 }
 
diff --git a/libs/hwui/OpenGLRenderer.h b/libs/hwui/OpenGLRenderer.h
index 1d46945..4f7f01e 100644
--- a/libs/hwui/OpenGLRenderer.h
+++ b/libs/hwui/OpenGLRenderer.h
@@ -930,8 +930,8 @@ private:
      */
     Texture* getTexture(const SkBitmap* bitmap);
 
-    // Matrix used for view/projection in shaders
-    mat4 mViewProjMatrix;
+    // Ortho matrix used for projection in shaders
+    mat4 mProjectionMatrix;
 
     /**
      * Model-view matrix used to position/size objects
@@ -939,15 +939,15 @@ private:
      * Stores operation-local modifications to the draw matrix that aren't incorporated into the
      * currentTransform().
      *
-     * If generated with kModelViewMode_Translate, the mModelView will reflect an x/y offset,
+     * If generated with kModelViewMode_Translate, mModelViewMatrix will reflect an x/y offset,
      * e.g. the offset in drawLayer(). If generated with kModelViewMode_TranslateAndScale,
-     * mModelView will reflect a translation and scale, e.g. the translation and scale required to
-     * make VBO 0 (a rect of (0,0,1,1)) scaled to match the x,y offset, and width/height of a
-     * bitmap.
+     * mModelViewMatrix will reflect a translation and scale, e.g. the translation and scale
+     * required to make VBO 0 (a rect of (0,0,1,1)) scaled to match the x,y offset, and width/height
+     * of a bitmap.
      *
      * Used as input to SkiaShader transformation.
      */
-    mat4 mModelView;
+    mat4 mModelViewMatrix;
 
     // State used to define the clipping region
     Rect mTilingClip;