blitters for sRGB and float16

src/views/SkWindow.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkWindow.h"
 #include "SkCanvas.h"
 #include "SkOSMenu.h"
 #include "SkSurface.h"
 #include "SkSystemEventTypes.h"
 #include "SkTime.h"
 
 #define SK_EventDelayInval "\xd" "n" "\xa" "l"
 
 SkWindow::SkWindow()
     : fSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType)
     , fFocusView(nullptr)
 {
     fClicks.reset();
     fWaitingOnInval = false;
     fMatrix.reset();
+
+    fBitmap.allocN32Pixels(0, 0);
 }
 
 SkWindow::~SkWindow() {
     fClicks.deleteAll();
     fMenus.deleteAll();
 }
 
 SkSurface* SkWindow::createSurface() {
     const SkBitmap& bm = this->getBitmap();
     return SkSurface::NewRasterDirect(bm.info(), bm.getPixels(), bm.rowBytes(), &fSurfaceProps);
@@ skipping 11 matching lines @@
     m.setConcat(fMatrix, matrix);
     this->setMatrix(m);
 }
 
 void SkWindow::postConcat(const SkMatrix& matrix) {
     SkMatrix m;
     m.setConcat(matrix, fMatrix);
     this->setMatrix(m);
 }
 
-void SkWindow::resize(int width, int height) {
-    if (width != fBitmap.width() || height != fBitmap.height()) {
-        fBitmap.allocPixels(SkImageInfo::Make(width, height, kN32_SkColorType,
-                                              kPremul_SkAlphaType));
+void SkWindow::resize(const SkImageInfo& info) {
+    if (fBitmap.info() != info) {
+        fBitmap.allocPixels(info);
         this->inval(nullptr);
     }
-    this->setSize(SkIntToScalar(width), SkIntToScalar(height));
+    this->setSize(SkIntToScalar(fBitmap.width()), SkIntToScalar(fBitmap.height()));
+}
+
+void SkWindow::resize(int width, int height) {
+    this->resize(fBitmap.info().makeWH(width, height));
+}
+
+void SkWindow::setColorType(SkColorType ct, SkColorProfileType pt) {
+    const SkImageInfo& info = fBitmap.info();
+    this->resize(SkImageInfo::Make(info.width(), info.height(), ct, kPremul_SkAlphaType, pt));
 }
 
 bool SkWindow::handleInval(const SkRect* localR) {
     SkIRect ir;
 
     if (localR) {
         SkRect devR;
         SkMatrix inverse;
         if (!fMatrix.invert(&inverse)) {
             return false;
@@ skipping 248 matching lines @@
     desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
     desc.fSampleCnt = attachmentInfo.fSampleCount;
     desc.fStencilBits = attachmentInfo.fStencilBits;
     GrGLint buffer;
     GR_GL_GetIntegerv(interface, GR_GL_FRAMEBUFFER_BINDING, &buffer);
     desc.fRenderTargetHandle = buffer;
     return grContext->textureProvider()->wrapBackendRenderTarget(desc);
 }
 
 #endif