introduce Props to surface

src/image/SkSurface.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkSurface_Base.h"
 #include "SkImagePriv.h"
 #include "SkCanvas.h"
 
+#include "SkFontLCDConfig.h"
+static SkPixelGeometry compute_default_geometry() {
+    SkFontLCDConfig::LCDOrder order = SkFontLCDConfig::GetSubpixelOrder();
+    if (SkFontLCDConfig::kNONE_LCDOrder == order) {
+        return kUnknown_SkPixelGeometry;
+    } else {
+        // Bit0 is RGB(0), BGR(1)
+        // Bit1 is H(0), V(1)
+        const SkPixelGeometry gGeo[] = {
+            kRGB_H_SkPixelGeometry,
+            kBGR_H_SkPixelGeometry,
+            kRGB_V_SkPixelGeometry,
+            kBGR_V_SkPixelGeometry,
+        };
+        int index = 0;
+        if (SkFontLCDConfig::kBGR_LCDOrder == order) {
+            index |= 1;
+        }
+        if (SkFontLCDConfig::kVertical_LCDOrientation == SkFontLCDConfig::GetSubpixelOrientation()){
+            index |= 2;
+        }
+        return gGeo[index];
+    }
+}
+
+SkSurfaceProps::SkSurfaceProps() : fFlags(0), fPixelGeometry(kUnknown_SkPixelGeometry) {}
+
+SkSurfaceProps::SkSurfaceProps(InitType) : fFlags(0), fPixelGeometry(compute_default_geometry()) {}
+
+SkSurfaceProps::SkSurfaceProps(uint32_t flags, InitType)
+    : fFlags(flags)
+    , fPixelGeometry(compute_default_geometry())
+{}
+
+SkSurfaceProps::SkSurfaceProps(uint32_t flags, SkPixelGeometry pg)
+    : fFlags(flags), fPixelGeometry(pg)
+{}
+
 ///////////////////////////////////////////////////////////////////////////////
 
-SkSurface_Base::SkSurface_Base(int width, int height) : INHERITED(width, height) {
+SkSurface_Base::SkSurface_Base(int width, int height, const SkSurfaceProps* props)
+    : INHERITED(width, height, props)
+{
     fCachedCanvas = NULL;
     fCachedImage = NULL;
 }
 
-SkSurface_Base::SkSurface_Base(const SkImageInfo& info) : INHERITED(info) {
+SkSurface_Base::SkSurface_Base(const SkImageInfo& info, const SkSurfaceProps* props)
+    : INHERITED(info, props)
+{
     fCachedCanvas = NULL;
     fCachedImage = NULL;
 }
 
 SkSurface_Base::~SkSurface_Base() {
     // in case the canvas outsurvives us, we null the callback
     if (fCachedCanvas) {
         fCachedCanvas->setSurfaceBase(NULL);
     }
 
     SkSafeUnref(fCachedImage);
     SkSafeUnref(fCachedCanvas);
 }
 
-void SkSurface_Base::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y,
-                            const SkPaint* paint) {
+void SkSurface_Base::onDraw(SkCanvas* canvas, SkScalar x, SkScalar y, const SkPaint* paint) {
     SkImage* image = this->newImageSnapshot();
     if (image) {
         image->draw(canvas, x, y, paint);
         image->unref();
     }
 }
 
 void SkSurface_Base::aboutToDraw(ContentChangeMode mode) {
     this->dirtyGenerationID();
 
@@ skipping 20 matching lines @@
     SkASSERT(!fCachedCanvas || fCachedCanvas->getSurfaceBase() == this);
     static int32_t gID;
     return sk_atomic_inc(&gID) + 1;
 }
 
 static SkSurface_Base* asSB(SkSurface* surface) {
     return static_cast<SkSurface_Base*>(surface);
 }
 
 ///////////////////////////////////////////////////////////////////////////////
 

[robertphillips, 2014/09/19 18:25:37]

Use CopyOrLegacy?

[reed1, 2014/09/19 19:16:34]

Done.

-SkSurface::SkSurface(int width, int height) : fWidth(width), fHeight(height) {
+static SkSurfaceProps props_or_default(const SkSurfaceProps* props) {
+    if (props) {
+        return *props;
+    } else {
+        return SkSurfaceProps(SkSurfaceProps::kLegacyFontHost_InitType);
+    }
+}
+
+SkSurface::SkSurface(int width, int height, const SkSurfaceProps* props)
+    : fProps(props_or_default(props)), fWidth(width), fHeight(height)
+{
     SkASSERT(fWidth >= 0);
     SkASSERT(fHeight >= 0);
     fGenerationID = 0;
 }
 
-SkSurface::SkSurface(const SkImageInfo& info) : fWidth(info.width()), fHeight(info.height()) {
+SkSurface::SkSurface(const SkImageInfo& info, const SkSurfaceProps* props)
+    : fProps(props_or_default(props)), fWidth(info.width()), fHeight(info.height())
+{
     SkASSERT(fWidth >= 0);
     SkASSERT(fHeight >= 0);
     fGenerationID = 0;
 }
 
 uint32_t SkSurface::generationID() {
     if (0 == fGenerationID) {
         fGenerationID = asSB(this)->newGenerationID();
     }
     return fGenerationID;
@@ skipping 18 matching lines @@
 }
 
 void SkSurface::draw(SkCanvas* canvas, SkScalar x, SkScalar y,
                      const SkPaint* paint) {
     return asSB(this)->onDraw(canvas, x, y, paint);
 }
 
 const void* SkSurface::peekPixels(SkImageInfo* info, size_t* rowBytes) {
     return this->getCanvas()->peekPixels(info, rowBytes);
 }
+
+//////////////////////////////////////////////////////////////////////////////////////
+#ifdef SK_SUPPORT_LEGACY_TEXTRENDERMODE
+
+static SkSurfaceProps make_props(SkSurface::TextRenderMode trm) {
+    uint32_t propsFlags = 0;
+    if (SkSurface::kDistanceField_TextRenderMode == trm) {
+        propsFlags |= SkSurfaceProps::kUseDistanceFieldFonts_Flag;
+    }
+    return SkSurfaceProps(propsFlags, SkSurfaceProps::kLegacyFontHost_InitType);
+}
+
+SkSurface* SkSurface::NewRenderTargetDirect(GrRenderTarget* target, TextRenderMode trm,
+                                            RenderTargetFlags flags) {
+    SkSurfaceProps props = make_props(trm);
+    return NewRenderTargetDirect(target, &props, flags);
+}
+
+SkSurface* SkSurface::NewRenderTarget(GrContext* gr, const SkImageInfo& info, int sampleCount,
+                                      TextRenderMode trm, RenderTargetFlags flags) {
+    SkSurfaceProps props = make_props(trm);
+    return NewRenderTarget(gr, info, sampleCount, &props, flags);
+}
+

[robertphillips, 2014/09/19 18:25:37]

overlength

+SkSurface* SkSurface::NewScratchRenderTarget(GrContext* gr, const SkImageInfo& info, int sampleCount,
+                                             TextRenderMode trm, RenderTargetFlags flags) {
+    SkSurfaceProps props = make_props(trm);
+    return NewScratchRenderTarget(gr, info, sampleCount, &props, flags);
+}
+
+#endif
+
+#if !SK_SUPPORT_GPU
+
+SkSurface* SkSurface::NewRenderTargetDirect(GrRenderTarget*, const SkSurfaceProps*,
+                                            RenderTargetFlags) {
+    return NULL;
+}
+
+SkSurface* SkSurface::NewRenderTarget(GrContext*, const SkImageInfo&, int, const SkSurfaceProps*,
+                                      RenderTargetFlags) {
+    return NULL;
+}
+
+SkSurface* SkSurface::NewScratchRenderTarget(GrContext*, const SkImageInfo&, int,
+                                             const SkSurfaceProps*, RenderTargetFlags) {
+    return NULL;
+}
+
+#endif