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Diffstat (limited to 'core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp')
-rw-r--r--core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp77
1 files changed, 37 insertions, 40 deletions
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
index b51520aa84..0a45167632 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_image.cpp
@@ -104,36 +104,40 @@ void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
int back_left, back_top;
FX_RECT rect(left, top, left + pDIBitmap->GetWidth(),
top + pDIBitmap->GetHeight());
- CFX_DIBitmap* pBackdrop =
+ nonstd::unique_ptr<CFX_DIBitmap> pBackdrop(
GetBackdrop(m_pCurObj, rect, back_left, back_top,
- blend_mode > FXDIB_BLEND_NORMAL && bIsolated);
- if (!pBackdrop) {
+ blend_mode > FXDIB_BLEND_NORMAL && bIsolated));
+ if (!pBackdrop)
return;
- }
- if (!pDIBitmap->IsAlphaMask())
+
+ if (!pDIBitmap->IsAlphaMask()) {
pBackdrop->CompositeBitmap(left - back_left, top - back_top,
pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
pDIBitmap, 0, 0, blend_mode);
- else
+ } else {
pBackdrop->CompositeMask(left - back_left, top - back_top,
pDIBitmap->GetWidth(), pDIBitmap->GetHeight(),
pDIBitmap, mask_argb, 0, 0, blend_mode);
- CFX_DIBitmap* pBackdrop1 = new CFX_DIBitmap;
+ }
+
+ nonstd::unique_ptr<CFX_DIBitmap> pBackdrop1(new CFX_DIBitmap);
pBackdrop1->Create(pBackdrop->GetWidth(), pBackdrop->GetHeight(),
FXDIB_Rgb32);
pBackdrop1->Clear((FX_DWORD)-1);
pBackdrop1->CompositeBitmap(0, 0, pBackdrop->GetWidth(),
- pBackdrop->GetHeight(), pBackdrop, 0, 0);
- delete pBackdrop;
- pBackdrop = pBackdrop1;
- m_pDevice->SetDIBits(pBackdrop, back_left, back_top);
- delete pBackdrop;
+ pBackdrop->GetHeight(), pBackdrop.get(), 0, 0);
+ pBackdrop = nonstd::move(pBackdrop1);
+ m_pDevice->SetDIBits(pBackdrop.get(), back_left, back_top);
}
-FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) {
+
+CPDF_TransferFunc::CPDF_TransferFunc(CPDF_Document* pDoc) : m_pPDFDoc(pDoc) {}
+
+FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF rgb) const {
return FXSYS_RGB(m_Samples[FXSYS_GetRValue(rgb)],
m_Samples[256 + FXSYS_GetGValue(rgb)],
m_Samples[512 + FXSYS_GetBValue(rgb)]);
}
+
CFX_DIBSource* CPDF_TransferFunc::TranslateImage(const CFX_DIBSource* pSrc,
FX_BOOL bAutoDropSrc) {
CPDF_DIBTransferFunc* pDest = new CPDF_DIBTransferFunc(this);
@@ -770,14 +774,12 @@ FX_BOOL CPDF_ImageRenderer::StartDIBSource() {
FX_RECT dest_clip(
dest_rect.left - image_rect.left, dest_rect.top - image_rect.top,
dest_rect.right - image_rect.left, dest_rect.bottom - image_rect.top);
- CFX_DIBitmap* pStretched =
- m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip);
+ nonstd::unique_ptr<CFX_DIBitmap> pStretched(
+ m_pDIBSource->StretchTo(dest_width, dest_height, m_Flags, &dest_clip));
if (pStretched) {
- m_pRenderStatus->CompositeDIBitmap(pStretched, dest_rect.left,
+ m_pRenderStatus->CompositeDIBitmap(pStretched.get(), dest_rect.left,
dest_rect.top, m_FillArgb, m_BitmapAlpha,
m_BlendType, FALSE);
- delete pStretched;
- pStretched = NULL;
}
return FALSE;
}
@@ -797,15 +799,14 @@ FX_BOOL CPDF_ImageRenderer::StartBitmapAlpha() {
if (FXSYS_fabs(m_ImageMatrix.b) >= 0.5f ||
FXSYS_fabs(m_ImageMatrix.c) >= 0.5f) {
int left, top;
- CFX_DIBitmap* pTransformed =
- pAlphaMask->TransformTo(&m_ImageMatrix, left, top);
- if (pTransformed == NULL) {
+ nonstd::unique_ptr<CFX_DIBitmap> pTransformed(
+ pAlphaMask->TransformTo(&m_ImageMatrix, left, top));
+ if (!pTransformed)
return TRUE;
- }
+
m_pRenderStatus->m_pDevice->SetBitMask(
- pTransformed, left, top,
+ pTransformed.get(), left, top,
ArgbEncode(0xff, m_BitmapAlpha, m_BitmapAlpha, m_BitmapAlpha));
- delete pTransformed;
} else {
CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
FX_RECT image_rect = image_rect_f.GetOutterRect();
@@ -1045,7 +1046,6 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
if (pSMaskDict == NULL) {
return NULL;
}
- CFX_DIBitmap* pMask = NULL;
int width = pClipRect->right - pClipRect->left;
int height = pClipRect->bottom - pClipRect->top;
FX_BOOL bLuminosity = FALSE;
@@ -1054,10 +1054,10 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
if (pGroup == NULL) {
return NULL;
}
- CPDF_Function* pFunc = NULL;
+ nonstd::unique_ptr<CPDF_Function> pFunc;
CPDF_Object* pFuncObj = pSMaskDict->GetElementValue(FX_BSTRC("TR"));
if (pFuncObj && (pFuncObj->IsDictionary() || pFuncObj->IsStream()))
- pFunc = CPDF_Function::Load(pFuncObj);
+ pFunc.reset(CPDF_Function::Load(pFuncObj));
CFX_AffineMatrix matrix = *pMatrix;
matrix.TranslateI(-pClipRect->left, -pClipRect->top);
@@ -1128,27 +1128,26 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
&options, 0, m_bDropObjects, pFormResource, TRUE, NULL, 0,
pCS ? pCS->GetFamily() : 0, bLuminosity);
status.RenderObjectList(&form, &matrix);
- pMask = new CFX_DIBitmap;
- if (!pMask->Create(width, height, FXDIB_8bppMask)) {
- delete pMask;
- return NULL;
- }
+ nonstd::unique_ptr<CFX_DIBitmap> pMask(new CFX_DIBitmap);
+ if (!pMask->Create(width, height, FXDIB_8bppMask))
+ return nullptr;
+
uint8_t* dest_buf = pMask->GetBuffer();
int dest_pitch = pMask->GetPitch();
uint8_t* src_buf = bitmap.GetBuffer();
int src_pitch = bitmap.GetPitch();
- uint8_t* pTransfer = FX_Alloc(uint8_t, 256);
+ std::vector<uint8_t> transfers(256);
if (pFunc) {
CFX_FixedBufGrow<FX_FLOAT, 16> results(pFunc->CountOutputs());
for (int i = 0; i < 256; i++) {
FX_FLOAT input = (FX_FLOAT)i / 255.0f;
int nresult;
pFunc->Call(&input, 1, results, nresult);
- pTransfer[i] = FXSYS_round(results[0] * 255);
+ transfers[i] = FXSYS_round(results[0] * 255);
}
} else {
for (int i = 0; i < 256; i++) {
- pTransfer[i] = i;
+ transfers[i] = i;
}
}
if (bLuminosity) {
@@ -1157,19 +1156,17 @@ CFX_DIBitmap* CPDF_RenderStatus::LoadSMask(CPDF_Dictionary* pSMaskDict,
uint8_t* dest_pos = dest_buf + row * dest_pitch;
uint8_t* src_pos = src_buf + row * src_pitch;
for (int col = 0; col < width; col++) {
- *dest_pos++ = pTransfer[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
+ *dest_pos++ = transfers[FXRGB2GRAY(src_pos[2], src_pos[1], *src_pos)];
src_pos += Bpp;
}
}
} else if (pFunc) {
int size = dest_pitch * height;
for (int i = 0; i < size; i++) {
- dest_buf[i] = pTransfer[src_buf[i]];
+ dest_buf[i] = transfers[src_buf[i]];
}
} else {
FXSYS_memcpy(dest_buf, src_buf, dest_pitch * height);
}
- delete pFunc;
- FX_Free(pTransfer);
- return pMask;
+ return pMask.release();
}
generated by cgit v1.2.3 (git 2.25.1) at 2024-06-02 08:43:13 +0000