Style Change: NULL->nullptr

src/pdf/SkPDFShader.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 "SkPDFShader.h"
@@ skipping 477 matching lines @@
 static SkPDFObject* get_pdf_shader_by_state(
         SkPDFCanon* canon,
         SkScalar dpi,
         SkAutoTDelete<SkPDFShader::State>* autoState) {
     const SkPDFShader::State& state = **autoState;
     if (state.fType == SkShader::kNone_GradientType && state.fImage.isNull()) {
         // TODO(vandebo) This drops SKComposeShader on the floor.  We could
         // handle compose shader by pulling things up to a layer, drawing with
         // the first shader, applying the xfer mode and drawing again with the
         // second shader, then applying the layer to the original drawing.
-        return NULL;
+        return nullptr;
     } else if (state.fType == SkShader::kNone_GradientType) {
         SkPDFObject* shader = canon->findImageShader(state);
         return shader ? SkRef(shader)
                       : SkPDFImageShader::Create(canon, dpi, autoState);
     } else if (state.GradientHasAlpha()) {
         SkPDFObject* shader = canon->findAlphaShader(state);
         return shader ? SkRef(shader)
                       : SkPDFAlphaFunctionShader::Create(canon, dpi, autoState);
     } else {
         SkPDFObject* shader = canon->findFunctionShader(state);
@@ skipping 17 matching lines @@
         SkPDFObject* functionShader,
         SkPDFObject* gState) {
     SkTDArray<SkPDFObject*> patterns;
     if (functionShader) {
         patterns.push(functionShader);
     }
     SkTDArray<SkPDFObject*> graphicStates;
     if (gState) {
         graphicStates.push(gState);
     }
-    return SkPDFResourceDict::Create(&graphicStates, &patterns, NULL, NULL);
+    return SkPDFResourceDict::Create(&graphicStates, &patterns, nullptr, nullptr);
 }
 
 static void populate_tiling_pattern_dict(SkPDFDict* pattern,
                                          SkRect& bbox,
                                          SkPDFDict* resources,
                                          const SkMatrix& matrix) {
     const int kTiling_PatternType = 1;
     const int kColoredTilingPattern_PaintType = 1;
     const int kConstantSpacing_TilingType = 1;
 
@@ skipping 38 matching lines @@
     bbox.set(state.fBBox);
 
     SkAutoTDelete<SkPDFShader::State> alphaToLuminosityState(
             state.CreateAlphaToLuminosityState());
     SkAutoTUnref<SkPDFObject> luminosityShader(
             get_pdf_shader_by_state(canon, dpi, &alphaToLuminosityState));
 
     SkAutoTDelete<SkStream> alphaStream(create_pattern_fill_content(-1, bbox));
 
     SkAutoTUnref<SkPDFDict>
-        resources(get_gradient_resource_dict(luminosityShader, NULL));
+        resources(get_gradient_resource_dict(luminosityShader, nullptr));
 
     SkAutoTUnref<SkPDFFormXObject> alphaMask(
             new SkPDFFormXObject(alphaStream.get(), bbox, resources.get()));
 
     return SkPDFGraphicState::GetSMaskGraphicState(
             alphaMask.get(), false,
             SkPDFGraphicState::kLuminosity_SMaskMode);
 }
 
 SkPDFAlphaFunctionShader* SkPDFAlphaFunctionShader::Create(
         SkPDFCanon* canon,
         SkScalar dpi,
         SkAutoTDelete<SkPDFShader::State>* autoState) {
     const SkPDFShader::State& state = **autoState;
     SkRect bbox;
     bbox.set(state.fBBox);
 
     SkAutoTDelete<SkPDFShader::State> opaqueState(state.CreateOpaqueState());
 
     SkAutoTUnref<SkPDFObject> colorShader(
             get_pdf_shader_by_state(canon, dpi, &opaqueState));
     if (!colorShader) {
-        return NULL;
+        return nullptr;
     }
 
     // Create resource dict with alpha graphics state as G0 and
     // pattern shader as P0, then write content stream.
     SkAutoTUnref<SkPDFObject> alphaGs(
             create_smask_graphic_state(canon, dpi, state));
 
     SkPDFAlphaFunctionShader* alphaFunctionShader =
             new SkPDFAlphaFunctionShader(autoState->detach());
 
@@ skipping 76 matching lines @@
     result->insertObject("Domain", SkRef(domain));
     result->insertObject("Range", SkRef(rangeObject.get()));
     return result;
 }
 
 SkPDFFunctionShader* SkPDFFunctionShader::Create(
         SkPDFCanon* canon, SkAutoTDelete<SkPDFShader::State>* autoState) {
     const SkPDFShader::State& state = **autoState;
 
     SkString (*codeFunction)(const SkShader::GradientInfo& info,
-                             const SkMatrix& perspectiveRemover) = NULL;
+                             const SkMatrix& perspectiveRemover) = nullptr;
     SkPoint transformPoints[2];
 
     // Depending on the type of the gradient, we want to transform the
     // coordinate space in different ways.
     const SkShader::GradientInfo* info = &state.fInfo;
     transformPoints[0] = info->fPoint[0];
     transformPoints[1] = info->fPoint[1];
     switch (state.fType) {
         case SkShader::kLinear_GradientType:
             codeFunction = &linearCode;
@@ skipping 10 matching lines @@
             break;
         }
         case SkShader::kSweep_GradientType:
             transformPoints[1] = transformPoints[0];
             transformPoints[1].fX += SK_Scalar1;
             codeFunction = &sweepCode;
             break;
         case SkShader::kColor_GradientType:
         case SkShader::kNone_GradientType:
         default:
-            return NULL;
+            return nullptr;
     }
 
     // Move any scaling (assuming a unit gradient) or translation
     // (and rotation for linear gradient), of the final gradient from
     // info->fPoints to the matrix (updating bbox appropriately).  Now
     // the gradient can be drawn on on the unit segment.
     SkMatrix mapperMatrix;
     unitToPointsMatrix(transformPoints, &mapperMatrix);
 
     SkMatrix finalMatrix = state.fCanvasTransform;
     finalMatrix.preConcat(state.fShaderTransform);
     finalMatrix.preConcat(mapperMatrix);
 
     // Preserves as much as posible in the final matrix, and only removes
     // the perspective. The inverse of the perspective is stored in
     // perspectiveInverseOnly matrix and has 3 useful numbers
     // (p0, p1, p2), while everything else is either 0 or 1.
     // In this way the shader will handle it eficiently, with minimal code.
     SkMatrix perspectiveInverseOnly = SkMatrix::I();
     if (finalMatrix.hasPerspective()) {
         if (!split_perspective(finalMatrix,
                                &finalMatrix, &perspectiveInverseOnly)) {
-            return NULL;
+            return nullptr;
         }
     }
 
     SkRect bbox;
     bbox.set(state.fBBox);
     if (!inverse_transform_bbox(finalMatrix, &bbox)) {
-        return NULL;
+        return nullptr;
     }
 
     SkAutoTUnref<SkPDFArray> domain(new SkPDFArray);
     domain->reserve(4);
     domain->appendScalar(bbox.fLeft);
     domain->appendScalar(bbox.fRight);
     domain->appendScalar(bbox.fTop);
     domain->appendScalar(bbox.fBottom);
 
     SkString functionCode;
     // The two point radial gradient further references
     // state.fInfo
     // in translating from x, y coordinates to the t parameter. So, we have
     // to transform the points and radii according to the calculated matrix.
     if (state.fType == SkShader::kConical_GradientType) {
         SkShader::GradientInfo twoPointRadialInfo = *info;
         SkMatrix inverseMapperMatrix;
         if (!mapperMatrix.invert(&inverseMapperMatrix)) {
-            return NULL;
+            return nullptr;
         }
         inverseMapperMatrix.mapPoints(twoPointRadialInfo.fPoint, 2);
         twoPointRadialInfo.fRadius[0] =
             inverseMapperMatrix.mapRadius(info->fRadius[0]);
         twoPointRadialInfo.fRadius[1] =
             inverseMapperMatrix.mapRadius(info->fRadius[1]);
         functionCode = codeFunction(twoPointRadialInfo, perspectiveInverseOnly);
     } else {
         functionCode = codeFunction(*info, perspectiveInverseOnly);
     }
@@ skipping 30 matching lines @@
     // in pattern cell space (no scaling on the bitmap, though there may be
     // translations so that all content is in the device, coordinates > 0).
 
     // Map clip bounds to shader space to ensure the device is large enough
     // to handle fake clamping.
     SkMatrix finalMatrix = state.fCanvasTransform;
     finalMatrix.preConcat(state.fShaderTransform);
     SkRect deviceBounds;
     deviceBounds.set(state.fBBox);
     if (!inverse_transform_bbox(finalMatrix, &deviceBounds)) {
-        return NULL;
+        return nullptr;
     }
 
     const SkBitmap* image = &state.fImage;
     SkRect bitmapBounds;
     image->getBounds(&bitmapBounds);
 
     // For tiling modes, the bounds should be extended to include the bitmap,
     // otherwise the bitmap gets clipped out and the shader is empty and awful.
     // For clamp modes, we're only interested in the clip region, whether
     // or not the main bitmap is in it.
@@ skipping 235 matching lines @@
     }
     return true;
 }
 
 SkPDFShader::State::State(const SkShader& shader, const SkMatrix& canvasTransform,
                           const SkIRect& bbox, SkScalar rasterScale)
         : fCanvasTransform(canvasTransform),
           fBBox(bbox),
           fPixelGeneration(0) {
     fInfo.fColorCount = 0;
-    fInfo.fColors = NULL;
-    fInfo.fColorOffsets = NULL;
+    fInfo.fColors = nullptr;
+    fInfo.fColorOffsets = nullptr;
     fShaderTransform = shader.getLocalMatrix();
     fImageTileModes[0] = fImageTileModes[1] = SkShader::kClamp_TileMode;
 
     fType = shader.asAGradient(&fInfo);
 
     if (fType == SkShader::kNone_GradientType) {
         SkMatrix matrix;
         if (shader.isABitmap(&fImage, &matrix, fImageTileModes)) {
             SkASSERT(matrix.isIdentity());
         } else {
@@ skipping 115 matching lines @@
     return false;
 }
 
 void SkPDFShader::State::AllocateGradientInfoStorage() {
     fColorData.set(sk_malloc_throw(
                fInfo.fColorCount * (sizeof(SkColor) + sizeof(SkScalar))));
     fInfo.fColors = reinterpret_cast<SkColor*>(fColorData.get());
     fInfo.fColorOffsets =
             reinterpret_cast<SkScalar*>(fInfo.fColors + fInfo.fColorCount);
 }