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-rw-r--r--core/fpdfapi/fpdf_page/fpdf_page_func.cpp86
-rw-r--r--core/fpdfapi/fpdf_page/pageint.h28
-rw-r--r--core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp4
3 files changed, 63 insertions, 55 deletions
diff --git a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
index b00ab73af1..31faf6a2d7 100644
--- a/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
+++ b/core/fpdfapi/fpdf_page/fpdf_page_func.cpp
@@ -491,28 +491,40 @@ static uint32_t _GetBits32(const uint8_t* pData, int bitpos, int nbits) {
}
return result;
}
-typedef struct {
- FX_FLOAT encode_max, encode_min;
- int sizes;
-} SampleEncodeInfo;
-typedef struct { FX_FLOAT decode_max, decode_min; } SampleDecodeInfo;
-class CPDF_SampledFunc : public CPDF_Function {
+class CPDF_PSFunc : public CPDF_Function {
public:
- CPDF_SampledFunc();
- ~CPDF_SampledFunc() override;
-
+ CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {}
// CPDF_Function
FX_BOOL v_Init(CPDF_Object* pObj) override;
FX_BOOL v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const override;
- SampleEncodeInfo* m_pEncodeInfo;
- SampleDecodeInfo* m_pDecodeInfo;
- uint32_t m_nBitsPerSample;
- uint32_t m_SampleMax;
- CPDF_StreamAcc* m_pSampleStream;
+ private:
+ CPDF_PSEngine m_PS;
};
+FX_BOOL CPDF_PSFunc::v_Init(CPDF_Object* pObj) {
+ CPDF_StreamAcc acc;
+ acc.LoadAllData(pObj->AsStream(), FALSE);
+ return m_PS.Parse(reinterpret_cast<const FX_CHAR*>(acc.GetData()),
+ acc.GetSize());
+}
+
+FX_BOOL CPDF_PSFunc::v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const {
+ CPDF_PSEngine& PS = const_cast<CPDF_PSEngine&>(m_PS);
+ PS.Reset();
+ for (uint32_t i = 0; i < m_nInputs; i++)
+ PS.Push(inputs[i]);
+ PS.Execute();
+ if (PS.GetStackSize() < m_nOutputs)
+ return FALSE;
+ for (uint32_t i = 0; i < m_nOutputs; i++)
+ results[m_nOutputs - i - 1] = PS.Pop();
+ return TRUE;
+}
+
+} // namespace
+
CPDF_SampledFunc::CPDF_SampledFunc() : CPDF_Function(Type::kType0Sampled) {
m_pSampleStream = NULL;
m_pEncodeInfo = NULL;
@@ -524,6 +536,7 @@ CPDF_SampledFunc::~CPDF_SampledFunc() {
FX_Free(m_pEncodeInfo);
FX_Free(m_pDecodeInfo);
}
+
FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
CPDF_Stream* pStream = pObj->AsStream();
if (!pStream)
@@ -579,13 +592,14 @@ FX_BOOL CPDF_SampledFunc::v_Init(CPDF_Object* pObj) {
}
return TRUE;
}
+
FX_BOOL CPDF_SampledFunc::v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const {
int pos = 0;
CFX_FixedBufGrow<FX_FLOAT, 16> encoded_input_buf(m_nInputs);
FX_FLOAT* encoded_input = encoded_input_buf;
- CFX_FixedBufGrow<int, 32> int_buf(m_nInputs * 2);
- int* index = int_buf;
- int* blocksize = index + m_nInputs;
+ CFX_FixedBufGrow<uint32_t, 32> int_buf(m_nInputs * 2);
+ uint32_t* index = int_buf;
+ uint32_t* blocksize = index + m_nInputs;
for (uint32_t i = 0; i < m_nInputs; i++) {
if (i == 0)
blocksize[i] = 1;
@@ -594,11 +608,8 @@ FX_BOOL CPDF_SampledFunc::v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const {
encoded_input[i] = PDF_Interpolate(
inputs[i], m_pDomains[i * 2], m_pDomains[i * 2 + 1],
m_pEncodeInfo[i].encode_min, m_pEncodeInfo[i].encode_max);
- index[i] = (int)encoded_input[i];
- if (index[i] < 0)
- index[i] = 0;
- else if (index[i] > m_pEncodeInfo[i].sizes - 1)
- index[i] = m_pEncodeInfo[i].sizes - 1;
+ index[i] = std::min((uint32_t)std::max(0.f, encoded_input[i]),
+ m_pEncodeInfo[i].sizes - 1);
pos += index[i] * blocksize[i];
}
FX_SAFE_INT32 bits_to_output = m_nOutputs;
@@ -650,37 +661,6 @@ FX_BOOL CPDF_SampledFunc::v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const {
return TRUE;
}
-class CPDF_PSFunc : public CPDF_Function {
- public:
- // CPDF_Function
- CPDF_PSFunc() : CPDF_Function(Type::kType4PostScript) {}
- FX_BOOL v_Init(CPDF_Object* pObj) override;
- FX_BOOL v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const override;
-
- CPDF_PSEngine m_PS;
-};
-
-FX_BOOL CPDF_PSFunc::v_Init(CPDF_Object* pObj) {
- CPDF_Stream* pStream = pObj->AsStream();
- CPDF_StreamAcc acc;
- acc.LoadAllData(pStream, FALSE);
- return m_PS.Parse((const FX_CHAR*)acc.GetData(), acc.GetSize());
-}
-FX_BOOL CPDF_PSFunc::v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const {
- CPDF_PSEngine& PS = (CPDF_PSEngine&)m_PS;
- PS.Reset();
- for (uint32_t i = 0; i < m_nInputs; i++)
- PS.Push(inputs[i]);
- PS.Execute();
- if (PS.GetStackSize() < m_nOutputs)
- return FALSE;
- for (uint32_t i = 0; i < m_nOutputs; i++)
- results[m_nOutputs - i - 1] = PS.Pop();
- return TRUE;
-}
-
-} // namespace
-
CPDF_ExpIntFunc::CPDF_ExpIntFunc()
: CPDF_Function(Type::kType2ExpotentialInterpolation) {
m_pBeginValues = NULL;
diff --git a/core/fpdfapi/fpdf_page/pageint.h b/core/fpdfapi/fpdf_page/pageint.h
index e6496cfd20..98a05d5495 100644
--- a/core/fpdfapi/fpdf_page/pageint.h
+++ b/core/fpdfapi/fpdf_page/pageint.h
@@ -393,6 +393,7 @@ class CPDF_Function {
uint32_t CountInputs() const { return m_nInputs; }
uint32_t CountOutputs() const { return m_nOutputs; }
FX_FLOAT GetDomain(int i) const { return m_pDomains[i]; }
+ FX_FLOAT GetRange(int i) const { return m_pRanges[i]; }
Type GetType() const { return m_Type; }
protected:
@@ -423,6 +424,33 @@ class CPDF_ExpIntFunc : public CPDF_Function {
FX_FLOAT* m_pEndValues;
};
+class CPDF_SampledFunc : public CPDF_Function {
+ public:
+ struct SampleEncodeInfo {
+ FX_FLOAT encode_max;
+ FX_FLOAT encode_min;
+ uint32_t sizes;
+ };
+
+ struct SampleDecodeInfo {
+ FX_FLOAT decode_max;
+ FX_FLOAT decode_min;
+ };
+
+ CPDF_SampledFunc();
+ ~CPDF_SampledFunc() override;
+
+ // CPDF_Function
+ FX_BOOL v_Init(CPDF_Object* pObj) override;
+ FX_BOOL v_Call(FX_FLOAT* inputs, FX_FLOAT* results) const override;
+
+ SampleEncodeInfo* m_pEncodeInfo;
+ SampleDecodeInfo* m_pDecodeInfo;
+ uint32_t m_nBitsPerSample;
+ uint32_t m_SampleMax;
+ CPDF_StreamAcc* m_pSampleStream;
+};
+
class CPDF_StitchFunc : public CPDF_Function {
public:
CPDF_StitchFunc();
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
index 3f98279dbf..48f9f5d98a 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
@@ -855,8 +855,8 @@ void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
clip_rect.Intersect(rect.GetOutterRect());
}
if (m_pDevice->GetDeviceCaps(FXDC_RENDER_CAPS) & FXRC_SHADING &&
- m_pDevice->GetDeviceDriver()->DrawShading(pPattern, pMatrix, alpha,
- bAlphaMode)) {
+ m_pDevice->GetDeviceDriver()->DrawShading(pPattern, pMatrix, clip_rect,
+ alpha, bAlphaMode)) {
return;
}
CPDF_DeviceBuffer buffer;
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-06 06:01:58 +0000