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-rw-r--r--core/fpdfapi/page/cpdf_meshstream.cpp71
-rw-r--r--core/fpdfapi/page/cpdf_meshstream.h25
-rw-r--r--core/fpdfapi/page/cpdf_streamcontentparser.cpp10
3 files changed, 65 insertions, 41 deletions
diff --git a/core/fpdfapi/page/cpdf_meshstream.cpp b/core/fpdfapi/page/cpdf_meshstream.cpp
index b852901794..fbbd22276f 100644
--- a/core/fpdfapi/page/cpdf_meshstream.cpp
+++ b/core/fpdfapi/page/cpdf_meshstream.cpp
@@ -83,6 +83,12 @@ bool IsValidBitsPerFlag(uint32_t x) {
} // namespace
+CPDF_MeshVertex::CPDF_MeshVertex() = default;
+
+CPDF_MeshVertex::CPDF_MeshVertex(const CPDF_MeshVertex&) = default;
+
+CPDF_MeshVertex::~CPDF_MeshVertex() = default;
+
CPDF_MeshStream::CPDF_MeshStream(
ShadingType type,
const std::vector<std::unique_ptr<CPDF_Function>>& funcs,
@@ -148,37 +154,47 @@ bool CPDF_MeshStream::Load() {
return true;
}
-uint32_t CPDF_MeshStream::GetFlag() {
+uint32_t CPDF_MeshStream::ReadFlag() {
ASSERT(ShouldCheckBitsPerFlag(m_type));
return m_BitStream.GetBits(m_nFlagBits) & 0x03;
}
-void CPDF_MeshStream::GetCoords(FX_FLOAT& x, FX_FLOAT& y) {
+CFX_PointF CPDF_MeshStream::ReadCoords() {
ASSERT(ShouldCheckBPC(m_type));
+
+ CFX_PointF pos;
if (m_nCoordBits == 32) {
- x = m_xmin + (FX_FLOAT)(m_BitStream.GetBits(m_nCoordBits) *
- (m_xmax - m_xmin) / (double)m_CoordMax);
- y = m_ymin + (FX_FLOAT)(m_BitStream.GetBits(m_nCoordBits) *
- (m_ymax - m_ymin) / (double)m_CoordMax);
+ pos.x = m_xmin +
+ m_BitStream.GetBits(m_nCoordBits) * (m_xmax - m_xmin) /
+ static_cast<double>(m_CoordMax);
+ pos.y = m_ymin +
+ m_BitStream.GetBits(m_nCoordBits) * (m_ymax - m_ymin) /
+ static_cast<double>(m_CoordMax);
} else {
- x = m_xmin +
- m_BitStream.GetBits(m_nCoordBits) * (m_xmax - m_xmin) / m_CoordMax;
- y = m_ymin +
- m_BitStream.GetBits(m_nCoordBits) * (m_ymax - m_ymin) / m_CoordMax;
+ pos.x = m_xmin +
+ m_BitStream.GetBits(m_nCoordBits) * (m_xmax - m_xmin) / m_CoordMax;
+ pos.y = m_ymin +
+ m_BitStream.GetBits(m_nCoordBits) * (m_ymax - m_ymin) / m_CoordMax;
}
+ return pos;
}
-void CPDF_MeshStream::GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b) {
+std::tuple<FX_FLOAT, FX_FLOAT, FX_FLOAT> CPDF_MeshStream::ReadColor() {
ASSERT(ShouldCheckBPC(m_type));
+
FX_FLOAT color_value[kMaxComponents];
for (uint32_t i = 0; i < m_nComponents; ++i) {
color_value[i] = m_ColorMin[i] +
m_BitStream.GetBits(m_nComponentBits) *
(m_ColorMax[i] - m_ColorMin[i]) / m_ComponentMax;
}
+
+ FX_FLOAT r;
+ FX_FLOAT g;
+ FX_FLOAT b;
if (m_funcs.empty()) {
m_pCS->GetRGB(color_value, r, g, b);
- return;
+ return std::tuple<FX_FLOAT, FX_FLOAT, FX_FLOAT>(r, g, b);
}
FX_FLOAT result[kMaxComponents];
@@ -188,29 +204,34 @@ void CPDF_MeshStream::GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b) {
if (func && func->CountOutputs() <= kMaxComponents)
func->Call(color_value, 1, result, nResults);
}
+
m_pCS->GetRGB(result, r, g, b);
+ return std::tuple<FX_FLOAT, FX_FLOAT, FX_FLOAT>(r, g, b);
}
-uint32_t CPDF_MeshStream::GetVertex(CPDF_MeshVertex& vertex,
- CFX_Matrix* pObject2Bitmap) {
- uint32_t flag = GetFlag();
- GetCoords(vertex.x, vertex.y);
- pObject2Bitmap->TransformPoint(vertex.x, vertex.y);
- GetColor(vertex.r, vertex.g, vertex.b);
+CPDF_MeshVertex CPDF_MeshStream::ReadVertex(const CFX_Matrix& pObject2Bitmap,
+ uint32_t* flag) {
+ *flag = ReadFlag();
+
+ CPDF_MeshVertex vertex;
+ vertex.position = ReadCoords();
+ pObject2Bitmap.TransformPoint(vertex.position.x, vertex.position.y);
+ std::tie(vertex.r, vertex.g, vertex.b) = ReadColor();
m_BitStream.ByteAlign();
- return flag;
+
+ return vertex;
}
-bool CPDF_MeshStream::GetVertexRow(CPDF_MeshVertex* vertex,
- int count,
- CFX_Matrix* pObject2Bitmap) {
+bool CPDF_MeshStream::ReadVertexRow(const CFX_Matrix& pObject2Bitmap,
+ int count,
+ CPDF_MeshVertex* vertex) {
for (int i = 0; i < count; i++) {
if (m_BitStream.IsEOF())
return false;
- GetCoords(vertex[i].x, vertex[i].y);
- pObject2Bitmap->TransformPoint(vertex[i].x, vertex[i].y);
- GetColor(vertex[i].r, vertex[i].g, vertex[i].b);
+ vertex[i].position = ReadCoords();
+ pObject2Bitmap.TransformPoint(vertex[i].position.x, vertex[i].position.y);
+ std::tie(vertex[i].r, vertex[i].g, vertex[i].b) = ReadColor();
m_BitStream.ByteAlign();
}
return true;
diff --git a/core/fpdfapi/page/cpdf_meshstream.h b/core/fpdfapi/page/cpdf_meshstream.h
index 21a6c2fa8c..24f1d66cfd 100644
--- a/core/fpdfapi/page/cpdf_meshstream.h
+++ b/core/fpdfapi/page/cpdf_meshstream.h
@@ -8,6 +8,7 @@
#define CORE_FPDFAPI_PAGE_CPDF_MESHSTREAM_H_
#include <memory>
+#include <tuple>
#include <vector>
#include "core/fpdfapi/page/cpdf_shadingpattern.h"
@@ -15,9 +16,13 @@
#include "core/fxcrt/fx_basic.h"
#include "core/fxcrt/fx_system.h"
-struct CPDF_MeshVertex {
- FX_FLOAT x;
- FX_FLOAT y;
+class CPDF_MeshVertex {
+ public:
+ CPDF_MeshVertex();
+ CPDF_MeshVertex(const CPDF_MeshVertex&);
+ ~CPDF_MeshVertex();
+
+ CFX_PointF position;
FX_FLOAT r;
FX_FLOAT g;
FX_FLOAT b;
@@ -37,14 +42,14 @@ class CPDF_MeshStream {
bool Load();
- uint32_t GetFlag();
- void GetCoords(FX_FLOAT& x, FX_FLOAT& y);
- void GetColor(FX_FLOAT& r, FX_FLOAT& g, FX_FLOAT& b);
+ uint32_t ReadFlag();
+ CFX_PointF ReadCoords();
+ std::tuple<FX_FLOAT, FX_FLOAT, FX_FLOAT> ReadColor();
- uint32_t GetVertex(CPDF_MeshVertex& vertex, CFX_Matrix* pObject2Bitmap);
- bool GetVertexRow(CPDF_MeshVertex* vertex,
- int count,
- CFX_Matrix* pObject2Bitmap);
+ CPDF_MeshVertex ReadVertex(const CFX_Matrix& pObject2Bitmap, uint32_t* flag);
+ bool ReadVertexRow(const CFX_Matrix& pObject2Bitmap,
+ int count,
+ CPDF_MeshVertex* vertex);
CFX_BitStream* BitStream() { return &m_BitStream; }
uint32_t ComponentBits() const { return m_nComponentBits; }
diff --git a/core/fpdfapi/page/cpdf_streamcontentparser.cpp b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
index 61efb48529..0af43d08b2 100644
--- a/core/fpdfapi/page/cpdf_streamcontentparser.cpp
+++ b/core/fpdfapi/page/cpdf_streamcontentparser.cpp
@@ -99,7 +99,7 @@ CFX_FloatRect GetShadingBBox(CPDF_ShadingPattern* pShading,
while (!stream.BitStream()->IsEOF()) {
uint32_t flag = 0;
if (type != kLatticeFormGouraudTriangleMeshShading)
- flag = stream.GetFlag();
+ flag = stream.ReadFlag();
if (!bGouraud && flag) {
point_count -= 4;
@@ -107,13 +107,11 @@ CFX_FloatRect GetShadingBBox(CPDF_ShadingPattern* pShading,
}
for (int i = 0; i < point_count; i++) {
- FX_FLOAT x;
- FX_FLOAT y;
- stream.GetCoords(x, y);
+ CFX_PointF origin = stream.ReadCoords();
if (bStarted) {
- rect.UpdateRect(x, y);
+ rect.UpdateRect(origin.x, origin.y);
} else {
- rect.InitRect(x, y);
+ rect.InitRect(origin.x, origin.y);
bStarted = true;
}
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-09 12:52:42 +0000