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-rw-r--r--core/fpdfapi/fpdf_render/fpdf_render.cpp41
-rw-r--r--core/fpdfapi/fpdf_render/fpdf_render_image.cpp19
-rw-r--r--core/fpdfapi/fpdf_render/render_int.h4
3 files changed, 59 insertions, 5 deletions
diff --git a/core/fpdfapi/fpdf_render/fpdf_render.cpp b/core/fpdfapi/fpdf_render/fpdf_render.cpp
index add2a8ae23..81a02cc6a7 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render.cpp
@@ -213,6 +213,9 @@ FX_BOOL CPDF_RenderStatus::Initialize(CPDF_RenderContext* pContext,
void CPDF_RenderStatus::RenderObjectList(
const CPDF_PageObjectHolder* pObjectHolder,
const CFX_Matrix* pObj2Device) {
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
CFX_FloatRect clip_rect(m_pDevice->GetClipBox());
CFX_Matrix device2object;
device2object.SetReverse(*pObj2Device);
@@ -236,9 +239,16 @@ void CPDF_RenderStatus::RenderObjectList(
if (m_bStopped)
return;
}
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
}
+
void CPDF_RenderStatus::RenderSingleObject(const CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device) {
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
CFX_AutoRestorer<int> restorer(&s_CurrentRecursionDepth);
if (++s_CurrentRecursionDepth > kRenderMaxRecursionDepth) {
return;
@@ -254,6 +264,9 @@ void CPDF_RenderStatus::RenderSingleObject(const CPDF_PageObject* pObj,
return;
}
ProcessObjectNoClip(pObj, pObj2Device);
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
}
FX_BOOL CPDF_RenderStatus::ContinueSingleObject(const CPDF_PageObject* pObj,
@@ -319,6 +332,9 @@ FX_BOOL CPDF_RenderStatus::GetObjectClippedRect(const CPDF_PageObject* pObj,
void CPDF_RenderStatus::ProcessObjectNoClip(const CPDF_PageObject* pObj,
const CFX_Matrix* pObj2Device) {
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
FX_BOOL bRet = FALSE;
switch (pObj->GetType()) {
case CPDF_PageObject::TEXT:
@@ -339,6 +355,9 @@ void CPDF_RenderStatus::ProcessObjectNoClip(const CPDF_PageObject* pObj,
}
if (!bRet)
DrawObjWithBackground(pObj, pObj2Device);
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
}
FX_BOOL CPDF_RenderStatus::DrawObjWithBlend(const CPDF_PageObject* pObj,
@@ -396,8 +415,12 @@ void CPDF_RenderStatus::DrawObjWithBackground(const CPDF_PageObject* pObj,
status.RenderSingleObject(pObj, &matrix);
buffer.OutputToDevice();
}
+
FX_BOOL CPDF_RenderStatus::ProcessForm(const CPDF_FormObject* pFormObj,
const CFX_Matrix* pObj2Device) {
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
CPDF_Dictionary* pOC = pFormObj->m_pForm->m_pFormDict->GetDictBy("OC");
if (pOC && m_Options.m_pOCContext &&
!m_Options.m_pOCContext->CheckOCGVisible(pOC)) {
@@ -418,8 +441,12 @@ FX_BOOL CPDF_RenderStatus::ProcessForm(const CPDF_FormObject* pFormObj,
status.RenderObjectList(pFormObj->m_pForm, &matrix);
m_bStopped = status.m_bStopped;
m_pDevice->RestoreState(false);
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
return TRUE;
}
+
FX_BOOL IsAvailableMatrix(const CFX_Matrix& matrix) {
if (matrix.a == 0 || matrix.d == 0) {
return matrix.b != 0 && matrix.c != 0;
@@ -645,6 +672,9 @@ FX_BOOL CPDF_RenderStatus::SelectClipPath(const CPDF_PathObject* pPathObj,
}
FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj,
const CFX_Matrix* pObj2Device) {
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
const CPDF_GeneralStateData* pGeneralState =
pPageObj->m_GeneralState.GetObject();
int blend_type =
@@ -745,12 +775,10 @@ FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj,
oriDevice.reset(new CFX_DIBitmap);
if (!m_pDevice->CreateCompatibleBitmap(oriDevice.get(), width, height))
return TRUE;
-
m_pDevice->GetDIBits(oriDevice.get(), rect.left, rect.top);
}
if (!bitmap_device.Create(width, height, FXDIB_Argb, oriDevice.get()))
return TRUE;
-
CFX_DIBitmap* bitmap = bitmap_device.GetBitmap();
bitmap->Clear(0);
CFX_Matrix new_matrix = *pObj2Device;
@@ -813,6 +841,9 @@ FX_BOOL CPDF_RenderStatus::ProcessTransparency(const CPDF_PageObject* pPageObj,
}
CompositeDIBitmap(bitmap, rect.left, rect.top, 0, blitAlpha, blend_type,
Transparency);
+#if defined _SKIA_SUPPORT_
+ DebugVerifyDeviceIsPreMultiplied();
+#endif
return TRUE;
}
@@ -1263,3 +1294,9 @@ void CPDF_ScaledRenderBuffer::OutputToDevice() {
m_Rect.top, m_Rect.Width(), m_Rect.Height());
}
}
+
+#if defined _SKIA_SUPPORT_
+void CPDF_RenderStatus::DebugVerifyDeviceIsPreMultiplied() const {
+ m_pDevice->DebugVerifyBitmapIsPreMultiplied();
+}
+#endif
diff --git a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
index 10fd5f3f15..b9826a9338 100644
--- a/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
+++ b/core/fpdfapi/fpdf_render/fpdf_render_image.cpp
@@ -63,8 +63,7 @@ void CPDF_RenderStatus::CompositeDIBitmap(CFX_DIBitmap* pDIBitmap,
#endif
}
#ifdef _SKIA_SUPPORT_
- static_cast<CFX_SkiaDeviceDriver*>(m_pDevice->GetDeviceDriver())
- ->PreMultiply(pDIBitmap);
+ CFX_SkiaDeviceDriver::PreMultiply(pDIBitmap);
#endif
if (m_pDevice->SetDIBits(pDIBitmap, left, top)) {
return;
@@ -717,7 +716,7 @@ FX_BOOL CPDF_ImageRenderer::DrawMaskedImage() {
bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
#ifdef _SKIA_SUPPORT_
- bitmap_device1.PreMultiply(); // convert unpremultiplied to premultiplied
+ CFX_SkiaDeviceDriver::PreMultiply(bitmap_device1.GetBitmap());
#endif
if (m_BitmapAlpha < 255) {
bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
@@ -737,6 +736,19 @@ FX_BOOL CPDF_ImageRenderer::StartDIBSource() {
m_Flags |= RENDER_FORCE_DOWNSAMPLE;
}
}
+#ifdef _SKIA_SUPPORT_
+ CFX_DIBitmap* premultiplied = m_pDIBSource->Clone();
+ CFX_SkiaDeviceDriver::PreMultiply(premultiplied);
+ if (m_pRenderStatus->m_pDevice->StartDIBitsWithBlend(
+ premultiplied, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags,
+ m_DeviceHandle, m_BlendType)) {
+ if (m_DeviceHandle) {
+ m_Status = 3;
+ return TRUE;
+ }
+ return FALSE;
+ }
+#else
if (m_pRenderStatus->m_pDevice->StartDIBitsWithBlend(
m_pDIBSource, m_BitmapAlpha, m_FillArgb, &m_ImageMatrix, m_Flags,
m_DeviceHandle, m_BlendType)) {
@@ -746,6 +758,7 @@ FX_BOOL CPDF_ImageRenderer::StartDIBSource() {
}
return FALSE;
}
+#endif
CFX_FloatRect image_rect_f = m_ImageMatrix.GetUnitRect();
FX_RECT image_rect = image_rect_f.GetOutterRect();
int dest_width = image_rect.Width();
diff --git a/core/fpdfapi/fpdf_render/render_int.h b/core/fpdfapi/fpdf_render/render_int.h
index 67eae91f59..d86a62ab19 100644
--- a/core/fpdfapi/fpdf_render/render_int.h
+++ b/core/fpdfapi/fpdf_render/render_int.h
@@ -150,6 +150,10 @@ class CPDF_RenderStatus {
IFX_Pause* pPause);
CPDF_RenderContext* GetContext() { return m_pContext; }
+#if defined _SKIA_SUPPORT_
+ void DebugVerifyDeviceIsPreMultiplied() const;
+#endif
+
CPDF_RenderOptions m_Options;
CPDF_Dictionary* m_pFormResource;
CPDF_Dictionary* m_pPageResource;
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-11 17:51:12 +0000