Index: xfa/fxgraphics/cfx_shading.cpp |
diff --git a/xfa/fxgraphics/cfx_shading.cpp b/xfa/fxgraphics/cfx_shading.cpp |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8be8b03e2661aa84319ed37c949278d35dfa29fe |
--- /dev/null |
+++ b/xfa/fxgraphics/cfx_shading.cpp |
@@ -0,0 +1,78 @@ |
+// Copyright 2016 PDFium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
+ |
+#include "xfa/fxgraphics/cfx_shading.h" |
+ |
+CFX_Shading::CFX_Shading(const CFX_PointF& beginPoint, |
+ const CFX_PointF& endPoint, |
+ FX_BOOL isExtendedBegin, |
+ FX_BOOL isExtendedEnd, |
+ const FX_ARGB beginArgb, |
+ const FX_ARGB endArgb) |
+ : m_type(FX_SHADING_Axial), |
+ m_beginPoint(beginPoint), |
+ m_endPoint(endPoint), |
+ m_beginRadius(0), |
+ m_endRadius(0), |
+ m_isExtendedBegin(isExtendedBegin), |
+ m_isExtendedEnd(isExtendedEnd), |
+ m_beginArgb(beginArgb), |
+ m_endArgb(endArgb) { |
+ InitArgbArray(); |
+} |
+ |
+CFX_Shading::CFX_Shading(const CFX_PointF& beginPoint, |
+ const CFX_PointF& endPoint, |
+ const FX_FLOAT beginRadius, |
+ const FX_FLOAT endRadius, |
+ FX_BOOL isExtendedBegin, |
+ FX_BOOL isExtendedEnd, |
+ const FX_ARGB beginArgb, |
+ const FX_ARGB endArgb) |
+ : m_type(FX_SHADING_Radial), |
+ m_beginPoint(beginPoint), |
+ m_endPoint(endPoint), |
+ m_beginRadius(beginRadius), |
+ m_endRadius(endRadius), |
+ m_isExtendedBegin(isExtendedBegin), |
+ m_isExtendedEnd(isExtendedEnd), |
+ m_beginArgb(beginArgb), |
+ m_endArgb(endArgb) { |
+ InitArgbArray(); |
+} |
+ |
+CFX_Shading::~CFX_Shading() {} |
+ |
+void CFX_Shading::InitArgbArray() { |
+ int32_t a1; |
+ int32_t r1; |
+ int32_t g1; |
+ int32_t b1; |
+ ArgbDecode(m_beginArgb, a1, r1, g1, b1); |
+ |
+ int32_t a2; |
+ int32_t r2; |
+ int32_t g2; |
+ int32_t b2; |
+ ArgbDecode(m_endArgb, a2, r2, g2, b2); |
+ |
+ FX_FLOAT f = (FX_FLOAT)(FX_SHADING_Steps - 1); |
+ FX_FLOAT aScale = 1.0 * (a2 - a1) / f; |
+ FX_FLOAT rScale = 1.0 * (r2 - r1) / f; |
+ FX_FLOAT gScale = 1.0 * (g2 - g1) / f; |
+ FX_FLOAT bScale = 1.0 * (b2 - b1) / f; |
+ |
+ for (int32_t i = 0; i < FX_SHADING_Steps; i++) { |
+ int32_t a3 = static_cast<int32_t>(i * aScale); |
+ int32_t r3 = static_cast<int32_t>(i * rScale); |
+ int32_t g3 = static_cast<int32_t>(i * gScale); |
+ int32_t b3 = static_cast<int32_t>(i * bScale); |
+ |
+ // TODO(dsinclair): Add overloads for FX_ARGB. pdfium:437 |
+ m_argbArray[i] = |
+ FXARGB_TODIB(FXARGB_MAKE(a1 + a3, r1 + r3, g1 + g3, b1 + b3)); |
+ } |
+} |