Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(87)

Issues Search
    My Issues | Starred     Open | Closed | All

Unified Diff: core/fxge/skia/fx_skia_device.cpp

Issue 2491693002: Create a subset of skia support for paths only (Closed)
Patch Set: fix wayward preprocessor defines Created 4 years, 1 month ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View side-by-side diff with in-line comments
Download patch
« no previous file with comments | « core/fxge/skia/fx_skia_device.h ('k') | core/fxge/skia/fx_skia_device_unittest.cpp » ('j') | no next file with comments »
Expand Comments ('e') | Collapse Comments ('c') | Show Comments Hide Comments ('s')
Index: core/fxge/skia/fx_skia_device.cpp
diff --git a/core/fxge/skia/fx_skia_device.cpp b/core/fxge/skia/fx_skia_device.cpp
index 5e91fbd8c331e1128666774b4133a4e425ab3113..3ab070916a101313ac497efbdd06de11315ca33a 100644
--- a/core/fxge/skia/fx_skia_device.cpp
+++ b/core/fxge/skia/fx_skia_device.cpp
@@ -19,20 +19,29 @@
#include "core/fxge/cfx_pathdata.h"
#include "core/fxge/cfx_renderdevice.h"
#include "core/fxge/skia/fx_skia_device.h"
+
+#ifndef _SKIA_SUPPORT_
+#include "core/fxge/ge/cfx_cliprgn.h"
+#endif
+
#include "third_party/base/ptr_util.h"
+
#include "third_party/skia/include/core/SkCanvas.h"
+#include "third_party/skia/include/core/SkPaint.h"
+#include "third_party/skia/include/core/SkPath.h"
+#include "third_party/skia/include/effects/SkDashPathEffect.h"
+#include "third_party/skia/include/pathops/SkPathOps.h"
+
+#ifdef _SKIA_SUPPORT_
#include "third_party/skia/include/core/SkColorFilter.h"
#include "third_party/skia/include/core/SkColorPriv.h"
#include "third_party/skia/include/core/SkMaskFilter.h"
-#include "third_party/skia/include/core/SkPaint.h"
-#include "third_party/skia/include/core/SkPath.h"
#include "third_party/skia/include/core/SkPictureRecorder.h"
#include "third_party/skia/include/core/SkShader.h"
#include "third_party/skia/include/core/SkStream.h"
#include "third_party/skia/include/core/SkTypeface.h"
-#include "third_party/skia/include/effects/SkDashPathEffect.h"
#include "third_party/skia/include/effects/SkGradientShader.h"
-#include "third_party/skia/include/pathops/SkPathOps.h"
+#endif
#ifdef SK_DEBUG
#include "third_party/skia/include/core/SkClipStack.h"
@@ -40,6 +49,108 @@
namespace {
+#ifndef _SKIA_SUPPORT_
+void RgbByteOrderTransferBitmap(CFX_DIBitmap* pBitmap,
+ int dest_left,
+ int dest_top,
+ int width,
+ int height,
+ const CFX_DIBSource* pSrcBitmap,
+ int src_left,
+ int src_top) {
+ if (!pBitmap)
+ return;
+
+ pBitmap->GetOverlapRect(dest_left, dest_top, width, height,
+ pSrcBitmap->GetWidth(), pSrcBitmap->GetHeight(),
+ src_left, src_top, nullptr);
+ if (width == 0 || height == 0)
+ return;
+
+ int Bpp = pBitmap->GetBPP() / 8;
+ FXDIB_Format dest_format = pBitmap->GetFormat();
+ FXDIB_Format src_format = pSrcBitmap->GetFormat();
+ int pitch = pBitmap->GetPitch();
+ uint8_t* buffer = pBitmap->GetBuffer();
+ if (dest_format == src_format) {
+ for (int row = 0; row < height; row++) {
+ uint8_t* dest_scan = buffer + (dest_top + row) * pitch + dest_left * Bpp;
+ uint8_t* src_scan =
+ (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp;
+ if (Bpp == 4) {
+ for (int col = 0; col < width; col++) {
+ FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_scan[3], src_scan[0],
+ src_scan[1], src_scan[2]));
+ dest_scan += 4;
+ src_scan += 4;
+ }
+ } else {
+ for (int col = 0; col < width; col++) {
+ *dest_scan++ = src_scan[2];
+ *dest_scan++ = src_scan[1];
+ *dest_scan++ = src_scan[0];
+ src_scan += 3;
+ }
+ }
+ }
+ return;
+ }
+
+ uint8_t* dest_buf = buffer + dest_top * pitch + dest_left * Bpp;
+ if (dest_format == FXDIB_Rgb) {
+ if (src_format == FXDIB_Rgb32) {
+ for (int row = 0; row < height; row++) {
+ uint8_t* dest_scan = dest_buf + row * pitch;
+ uint8_t* src_scan =
+ (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * 4;
+ for (int col = 0; col < width; col++) {
+ *dest_scan++ = src_scan[2];
+ *dest_scan++ = src_scan[1];
+ *dest_scan++ = src_scan[0];
+ src_scan += 4;
+ }
+ }
+ } else {
+ ASSERT(false);
+ }
+ return;
+ }
+
+ if (dest_format == FXDIB_Argb || dest_format == FXDIB_Rgb32) {
+ if (src_format == FXDIB_Rgb) {
+ for (int row = 0; row < height; row++) {
+ uint8_t* dest_scan = (uint8_t*)(dest_buf + row * pitch);
+ uint8_t* src_scan =
+ (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * 3;
+ for (int col = 0; col < width; col++) {
+ FXARGB_SETDIB(dest_scan, FXARGB_MAKE(0xff, src_scan[0], src_scan[1],
+ src_scan[2]));
+ dest_scan += 4;
+ src_scan += 3;
+ }
+ }
+ } else if (src_format == FXDIB_Rgb32) {
+ ASSERT(dest_format == FXDIB_Argb);
+ for (int row = 0; row < height; row++) {
+ uint8_t* dest_scan = dest_buf + row * pitch;
+ uint8_t* src_scan =
+ (uint8_t*)(pSrcBitmap->GetScanline(src_top + row) + src_left * 4);
+ for (int col = 0; col < width; col++) {
+ FXARGB_SETDIB(dest_scan, FXARGB_MAKE(0xff, src_scan[0], src_scan[1],
+ src_scan[2]));
+ src_scan += 4;
+ dest_scan += 4;
+ }
+ }
+ }
+ return;
+ }
+
+ ASSERT(false);
+}
+
+#endif
+
#define SHOW_SKIA_PATH 0 // set to 1 to print the path contents
#define DRAW_SKIA_CLIP 0 // set to 1 to draw a green rectangle around the clip
@@ -73,10 +184,12 @@ SkPaint DebugClipPaint() {
return paint;
}
+#ifdef _SKIA_SUPPORT_
void DebugDrawSkiaClipRect(SkCanvas* canvas, const SkRect& rect) {
SkPaint paint = DebugClipPaint();
canvas->drawRect(rect, paint);
}
+#endif
void DebugDrawSkiaClipPath(SkCanvas* canvas, const SkPath& path) {
SkPaint paint = DebugClipPaint();
@@ -85,7 +198,10 @@ void DebugDrawSkiaClipPath(SkCanvas* canvas, const SkPath& path) {
#else // DRAW_SKIA_CLIP
+#ifdef _SKIA_SUPPORT_
void DebugDrawSkiaClipRect(SkCanvas* canvas, const SkRect& rect) {}
+#endif
+
void DebugDrawSkiaClipPath(SkCanvas* canvas, const SkPath& path) {}
#endif // DRAW_SKIA_CLIP
@@ -93,6 +209,7 @@ void DebugDrawSkiaClipPath(SkCanvas* canvas, const SkPath& path) {}
#undef SHOW_SKIA_PATH
#undef DRAW_SKIA_CLIP
+#ifdef _SKIA_SUPPORT_
static void DebugValidate(const CFX_DIBitmap* bitmap,
const CFX_DIBitmap* device) {
if (bitmap) {
@@ -108,6 +225,7 @@ static void DebugValidate(const CFX_DIBitmap* bitmap,
}
}
}
+#endif
SkPath BuildPath(const CFX_PathData* pPathData) {
SkPath skPath;
@@ -140,6 +258,7 @@ SkMatrix ToSkMatrix(const CFX_Matrix& m) {
return skMatrix;
}
+#ifdef _SKIA_SUPPORT_
// use when pdf's y-axis points up insead of down
SkMatrix ToFlippedSkMatrix(const CFX_Matrix& m, SkScalar flip) {
SkMatrix skMatrix;
@@ -147,6 +266,7 @@ SkMatrix ToFlippedSkMatrix(const CFX_Matrix& m, SkScalar flip) {
0, 1);
return skMatrix;
}
+#endif
SkBlendMode GetSkiaBlendMode(int blend_type) {
switch (blend_type) {
@@ -186,6 +306,7 @@ SkBlendMode GetSkiaBlendMode(int blend_type) {
}
}
+#ifdef _SKIA_SUPPORT_
bool AddColors(const CPDF_ExpIntFunc* pFunc, SkTDArray<SkColor>* skColors) {
if (pFunc->CountInputs() != 1)
return false;
@@ -469,6 +590,7 @@ bool Upsample(const CFX_DIBSource* pSource,
*heightPtr = height;
return true;
}
+#endif
} // namespace
@@ -489,10 +611,13 @@ class SkiaState {
m_strokeColor(0),
m_blendType(0),
m_commandIndex(0),
+#if _SKIA_SUPPORT_
m_drawText(false),
+#endif
m_drawPath(false),
m_fillPath(false),
- m_debugDisable(false) {}
+ m_debugDisable(true) {
+ }
bool DrawPath(const CFX_PathData* pPathData,
const CFX_Matrix* pMatrix,
@@ -506,8 +631,10 @@ class SkiaState {
return false;
if (m_commandIndex < m_commands.count())
FlushCommands(pDriver);
+#if _SKIA_SUPPORT_
if (m_drawText)
FlushText(pDriver);
+#endif
if (m_drawPath && DrawChanged(pMatrix, pDrawState, fill_color, stroke_color,
fill_mode, blend_type)) {
FlushPath(pDriver);
@@ -574,6 +701,7 @@ class SkiaState {
m_drawPath = false;
}
+#ifdef _SKIA_SUPPORT_
bool DrawText(int nChars,
const FXTEXT_CHARPOS* pCharPos,
CFX_Font* pFont,
@@ -637,6 +765,7 @@ class SkiaState {
skCanvas->restore();
m_drawText = false;
}
+#endif
bool SetClipFill(const CFX_PathData* pPathData,
const CFX_Matrix* pMatrix,
@@ -826,8 +955,10 @@ class SkiaState {
void Flush(CFX_SkiaDeviceDriver* pDriver) {
if (m_drawPath)
FlushPath(pDriver);
+#ifdef _SKIA_SUPPORT_
if (m_drawText)
FlushText(pDriver);
+#endif
}
#ifdef SK_DEBUG
@@ -870,7 +1001,9 @@ class SkiaState {
uint32_t m_strokeColor;
int m_blendType;
int m_commandIndex; // active position in clip command stack
+#ifdef _SKIA_SUPPORT_
bool m_drawText;
+#endif
bool m_drawPath;
bool m_fillPath;
bool m_debugDisable; // turn off cache for debugging
@@ -949,6 +1082,11 @@ CFX_SkiaDeviceDriver::CFX_SkiaDeviceDriver(CFX_DIBitmap* pBitmap,
m_pOriDevice(pOriDevice),
m_pRecorder(nullptr),
m_pCache(new SkiaState),
+#ifndef _SKIA_SUPPORT_
+ m_pClipRgn(nullptr),
+ m_FillFlags(0),
+ m_bRgbByteOrder(bRgbByteOrder),
+#endif
m_bGroupKnockout(bGroupKnockout) {
SkBitmap skBitmap;
SkASSERT(pBitmap->GetBPP() == 8 || pBitmap->GetBPP() == 32);
@@ -957,13 +1095,12 @@ CFX_SkiaDeviceDriver::CFX_SkiaDeviceDriver(CFX_DIBitmap* pBitmap,
pBitmap->GetBPP() == 8 ? kAlpha_8_SkColorType : kN32_SkColorType,
kOpaque_SkAlphaType);
skBitmap.installPixels(imageInfo, pBitmap->GetBuffer(), pBitmap->GetPitch(),
- nullptr, /* to do : set color table */
+ nullptr, // FIXME(caryclark) set color table
nullptr, nullptr);
m_pCanvas = new SkCanvas(skBitmap);
- if (m_bGroupKnockout)
- SkDebugf(""); // FIXME(caryclark) suppress 'm_bGroupKnockout is unused'
}
+#ifdef _SKIA_SUPPORT_
CFX_SkiaDeviceDriver::CFX_SkiaDeviceDriver(int size_x, int size_y)
: m_pBitmap(nullptr),
m_pOriDevice(nullptr),
@@ -982,6 +1119,7 @@ CFX_SkiaDeviceDriver::CFX_SkiaDeviceDriver(SkPictureRecorder* recorder)
m_bGroupKnockout(false) {
m_pCanvas = m_pRecorder->getRecordingCanvas();
}
+#endif
CFX_SkiaDeviceDriver::~CFX_SkiaDeviceDriver() {
Flush();
@@ -1000,6 +1138,7 @@ bool CFX_SkiaDeviceDriver::DrawDeviceText(int nChars,
const CFX_Matrix* pObject2Device,
FX_FLOAT font_size,
uint32_t color) {
+#ifdef _SKIA_SUPPORT_
if (m_pCache->DrawText(nChars, pCharPos, pFont, pObject2Device, font_size,
color, this)) {
return true;
@@ -1029,12 +1168,16 @@ bool CFX_SkiaDeviceDriver::DrawDeviceText(int nChars,
m_pCanvas->drawPosText(glyphs.begin(), nChars * 2, positions.begin(), paint);
m_pCanvas->restore();
return true;
+#else
+ return false;
+#endif
}
int CFX_SkiaDeviceDriver::GetDeviceCaps(int caps_id) const {
switch (caps_id) {
case FXDC_DEVICE_CLASS:
return FXDC_DISPLAY;
+#ifdef _SKIA_SUPPORT_
case FXDC_PIXEL_WIDTH:
return m_pCanvas->imageInfo().width();
case FXDC_PIXEL_HEIGHT:
@@ -1048,21 +1191,103 @@ int CFX_SkiaDeviceDriver::GetDeviceCaps(int caps_id) const {
return FXRC_GET_BITS | FXRC_ALPHA_PATH | FXRC_ALPHA_IMAGE |
FXRC_BLEND_MODE | FXRC_SOFT_CLIP | FXRC_ALPHA_OUTPUT |
FXRC_FILLSTROKE_PATH | FXRC_SHADING;
+#else
+ case FXDC_PIXEL_WIDTH:
+ return m_pBitmap->GetWidth();
+ case FXDC_PIXEL_HEIGHT:
+ return m_pBitmap->GetHeight();
+ case FXDC_BITS_PIXEL:
+ return m_pBitmap->GetBPP();
+ case FXDC_HORZ_SIZE:
+ case FXDC_VERT_SIZE:
+ return 0;
+ case FXDC_RENDER_CAPS: {
+ int flags = FXRC_GET_BITS | FXRC_ALPHA_PATH | FXRC_ALPHA_IMAGE |
+ FXRC_BLEND_MODE | FXRC_SOFT_CLIP;
+ if (m_pBitmap->HasAlpha()) {
+ flags |= FXRC_ALPHA_OUTPUT;
+ } else if (m_pBitmap->IsAlphaMask()) {
+ if (m_pBitmap->GetBPP() == 1) {
+ flags |= FXRC_BITMASK_OUTPUT;
+ } else {
+ flags |= FXRC_BYTEMASK_OUTPUT;
+ }
+ }
+ if (m_pBitmap->IsCmykImage()) {
+ flags |= FXRC_CMYK_OUTPUT;
+ }
+ return flags;
+ }
+#endif
}
return 0;
}
void CFX_SkiaDeviceDriver::SaveState() {
+#ifdef _SKIA_SUPPORT_
if (!m_pCache->ClipSave(this))
m_pCanvas->save();
+#else
+ std::unique_ptr<CFX_ClipRgn> pClip;
+ if (m_pClipRgn)
+ pClip = pdfium::MakeUnique<CFX_ClipRgn>(*m_pClipRgn);
+ m_StateStack.push_back(std::move(pClip));
+#endif
}
void CFX_SkiaDeviceDriver::RestoreState(bool bKeepSaved) {
+#ifdef _SKIA_SUPPORT_
if (!m_pCache->ClipRestore(this))
m_pCanvas->restore();
if (bKeepSaved)
SaveState();
+#else
+ m_pClipRgn.reset();
+
+ if (m_StateStack.empty())
+ return;
+
+ if (bKeepSaved) {
+ if (m_StateStack.back())
+ m_pClipRgn = pdfium::MakeUnique<CFX_ClipRgn>(*m_StateStack.back());
+ } else {
+ m_pClipRgn = std::move(m_StateStack.back());
+ m_StateStack.pop_back();
+ }
+#endif
+}
+
+#ifndef _SKIA_SUPPORT_
+void CFX_SkiaDeviceDriver::SetClipMask(const FX_RECT& clipBox,
+ const SkPath& path) {
+ FX_RECT path_rect(clipBox.left, clipBox.top, clipBox.right + 1,
+ clipBox.bottom + 1);
+ path_rect.Intersect(m_pClipRgn->GetBox());
+ CFX_DIBitmapRef mask;
+ CFX_DIBitmap* pThisLayer = mask.Emplace();
+ pThisLayer->Create(path_rect.Width(), path_rect.Height(), FXDIB_8bppMask);
+ pThisLayer->Clear(0);
+
+ SkImageInfo imageInfo =
+ SkImageInfo::Make(pThisLayer->GetWidth(), pThisLayer->GetHeight(),
+ SkColorType::kAlpha_8_SkColorType, kOpaque_SkAlphaType);
+ SkBitmap bitmap;
+ bitmap.installPixels(imageInfo, pThisLayer->GetBuffer(),
+ pThisLayer->GetPitch(), nullptr, nullptr, nullptr);
+ SkCanvas* canvas = new SkCanvas(bitmap);
+ canvas->translate(
+ clipBox.left,
+ clipBox.top); // FIXME(caryclark) wrong sign(s)? upside down?
+ SkPaint paint;
+ paint.setAntiAlias((m_FillFlags & FXFILL_NOPATHSMOOTH) == 0);
+ canvas->drawPath(path, paint);
+ std::unique_ptr<uint8_t, FxFreeDeleter> raw_buf;
+ raw_buf.reset(
+ FX_Alloc2D(uint8_t, pThisLayer->GetWidth(), pThisLayer->GetHeight()));
+ m_pClipRgn->IntersectMaskF(path_rect.left, path_rect.top, mask);
+ delete canvas;
}
+#endif
bool CFX_SkiaDeviceDriver::SetClip_PathFill(
const CFX_PathData* pPathData, // path info
@@ -1071,19 +1296,32 @@ bool CFX_SkiaDeviceDriver::SetClip_PathFill(
) {
CFX_Matrix identity;
const CFX_Matrix* deviceMatrix = pObject2Device ? pObject2Device : &identity;
+#ifdef _SKIA_SUPPORT_
if (m_pCache->SetClipFill(pPathData, deviceMatrix, fill_mode, this))
return true;
+#else
+ m_FillFlags = fill_mode;
+ if (!m_pClipRgn) {
+ m_pClipRgn = pdfium::MakeUnique<CFX_ClipRgn>(
+ GetDeviceCaps(FXDC_PIXEL_WIDTH), GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+ }
+#endif
if (pPathData->GetPointCount() == 5 || pPathData->GetPointCount() == 4) {
CFX_FloatRect rectf;
if (pPathData->IsRect(deviceMatrix, &rectf)) {
rectf.Intersect(
CFX_FloatRect(0, 0, (FX_FLOAT)GetDeviceCaps(FXDC_PIXEL_WIDTH),
(FX_FLOAT)GetDeviceCaps(FXDC_PIXEL_HEIGHT)));
+#ifdef _SKIA_SUPPORT_
// note that PDF's y-axis goes up; Skia's y-axis goes down
SkRect skClipRect =
SkRect::MakeLTRB(rectf.left, rectf.bottom, rectf.right, rectf.top);
DebugDrawSkiaClipRect(m_pCanvas, skClipRect);
m_pCanvas->clipRect(skClipRect, SkCanvas::kIntersect_Op, true);
+#else
+ FX_RECT rect = rectf.GetOuterRect();
+ m_pClipRgn->IntersectRect(rect);
+#endif
return true;
}
}
@@ -1096,7 +1334,11 @@ bool CFX_SkiaDeviceDriver::SetClip_PathFill(
DebugShowSkiaPath(skClipPath);
DebugDrawSkiaClipPath(m_pCanvas, skClipPath);
m_pCanvas->clipPath(skClipPath, SkCanvas::kIntersect_Op, true);
-
+#ifndef _SKIA_SUPPORT_
+ FX_RECT clipBox(0, 0, GetDeviceCaps(FXDC_PIXEL_WIDTH),
+ GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+ SetClipMask(clipBox, skClipPath);
+#endif
return true;
}
@@ -1105,8 +1347,15 @@ bool CFX_SkiaDeviceDriver::SetClip_PathStroke(
const CFX_Matrix* pObject2Device, // optional transformation
const CFX_GraphStateData* pGraphState // graphic state, for pen attributes
) {
+#ifdef _SKIA_SUPPORT_
if (m_pCache->SetClipStroke(pPathData, pObject2Device, pGraphState, this))
return true;
+#else
+ if (!m_pClipRgn) {
+ m_pClipRgn = pdfium::MakeUnique<CFX_ClipRgn>(
+ GetDeviceCaps(FXDC_PIXEL_WIDTH), GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+ }
+#endif
// build path data
SkPath skPath = BuildPath(pPathData);
SkMatrix skMatrix = ToSkMatrix(*pObject2Device);
@@ -1116,7 +1365,13 @@ bool CFX_SkiaDeviceDriver::SetClip_PathStroke(
skPaint.getFillPath(skPath, &dst_path);
dst_path.transform(skMatrix);
DebugDrawSkiaClipPath(m_pCanvas, dst_path);
+#ifdef _SKIA_SUPPORT_
m_pCanvas->clipPath(dst_path, SkCanvas::kIntersect_Op, true);
+#else
+ FX_RECT clipBox(0, 0, GetDeviceCaps(FXDC_PIXEL_WIDTH),
+ GetDeviceCaps(FXDC_PIXEL_HEIGHT));
+ SetClipMask(clipBox, dst_path);
+#endif
return true;
}
@@ -1142,6 +1397,8 @@ bool CFX_SkiaDeviceDriver::DrawPath(
skMatrix.setIdentity();
SkPaint skPaint;
skPaint.setAntiAlias(true);
+ if (fill_mode & FXFILL_FULLCOVER)
+ skPaint.setBlendMode(SkBlendMode::kPlus);
int stroke_alpha = FXARGB_A(stroke_color);
if (pGraphState && stroke_alpha)
PaintStroke(&skPaint, pGraphState, skMatrix);
@@ -1155,9 +1412,7 @@ bool CFX_SkiaDeviceDriver::DrawPath(
SkPath strokePath;
const SkPath* fillPath = &skPath;
if (pGraphState && stroke_alpha) {
- SkAlpha fillA = SkColorGetA(fill_color);
- SkAlpha strokeA = SkColorGetA(stroke_color);
- if (fillA && fillA < 0xFF && strokeA && strokeA < 0xFF) {
+ if (m_bGroupKnockout) {
skPaint.getFillPath(skPath, &strokePath);
if (Op(skPath, strokePath, SkPathOp::kDifference_SkPathOp,
&strokePath)) {
@@ -1203,6 +1458,7 @@ bool CFX_SkiaDeviceDriver::FillRectWithBlend(const FX_RECT* pRect,
return true;
}
+#ifdef _SKIA_SUPPORT_
bool CFX_SkiaDeviceDriver::DrawShading(const CPDF_ShadingPattern* pPattern,
const CFX_Matrix* pMatrix,
const FX_RECT& clip_rect,
@@ -1336,6 +1592,7 @@ bool CFX_SkiaDeviceDriver::DrawShading(const CPDF_ShadingPattern* pPattern,
m_pCanvas->restore();
return true;
}
+#endif
uint8_t* CFX_SkiaDeviceDriver::GetBuffer() const {
return m_pBitmap->GetBuffer();
@@ -1357,6 +1614,7 @@ bool CFX_SkiaDeviceDriver::GetDIBits(CFX_DIBitmap* pBitmap, int left, int top) {
uint8_t* srcBuffer = m_pBitmap->GetBuffer();
if (!srcBuffer)
return true;
+#ifdef _SKIA_SUPPORT_
int srcWidth = m_pBitmap->GetWidth();
int srcHeight = m_pBitmap->GetHeight();
int srcRowBytes = srcWidth * sizeof(uint32_t);
@@ -1379,6 +1637,36 @@ bool CFX_SkiaDeviceDriver::GetDIBits(CFX_DIBitmap* pBitmap, int left, int top) {
SkCanvas canvas(skDstBitmap);
canvas.drawBitmap(skSrcBitmap, left, top, nullptr);
return true;
+#else
+ FX_RECT rect(left, top, left + pBitmap->GetWidth(),
+ top + pBitmap->GetHeight());
+ CFX_DIBitmap* pBack = nullptr;
+ if (m_pOriDevice) {
+ pBack = m_pOriDevice->Clone(&rect);
+ if (!pBack)
+ return true;
+
+ pBack->CompositeBitmap(0, 0, pBack->GetWidth(), pBack->GetHeight(),
+ m_pBitmap, 0, 0);
+ } else {
+ pBack = m_pBitmap->Clone(&rect);
+ if (!pBack)
+ return true;
+ }
+
+ bool bRet = true;
+ left = std::min(left, 0);
+ top = std::min(top, 0);
+ if (m_bRgbByteOrder) {
+ RgbByteOrderTransferBitmap(pBitmap, 0, 0, rect.Width(), rect.Height(),
+ pBack, left, top);
+ } else {
+ bRet = pBitmap->TransferBitmap(0, 0, rect.Width(), rect.Height(), pBack,
+ left, top);
+ }
+ delete pBack;
+ return bRet;
+#endif
}
CFX_DIBitmap* CFX_SkiaDeviceDriver::GetBackDrop() {
@@ -1394,10 +1682,22 @@ bool CFX_SkiaDeviceDriver::SetDIBits(const CFX_DIBSource* pBitmap,
if (!m_pBitmap || !m_pBitmap->GetBuffer())
return true;
+#ifdef _SKIA_SUPPORT_
CFX_Matrix m(pBitmap->GetWidth(), 0, 0, -pBitmap->GetHeight(), left,
top + pBitmap->GetHeight());
void* dummy;
return StartDIBits(pBitmap, 0xFF, argb, &m, 0, dummy, blend_type);
+#else
+ if (pBitmap->IsAlphaMask()) {
+ return m_pBitmap->CompositeMask(
+ left, top, pSrcRect->Width(), pSrcRect->Height(), pBitmap, argb,
+ pSrcRect->left, pSrcRect->top, blend_type, m_pClipRgn.get(),
+ m_bRgbByteOrder, 0, nullptr);
+ }
+ return m_pBitmap->CompositeBitmap(
+ left, top, pSrcRect->Width(), pSrcRect->Height(), pBitmap, pSrcRect->left,
+ pSrcRect->top, blend_type, m_pClipRgn.get(), m_bRgbByteOrder, nullptr);
+#endif
}
bool CFX_SkiaDeviceDriver::StretchDIBits(const CFX_DIBSource* pSource,
@@ -1409,6 +1709,7 @@ bool CFX_SkiaDeviceDriver::StretchDIBits(const CFX_DIBSource* pSource,
const FX_RECT* pClipRect,
uint32_t flags,
int blend_type) {
+#ifdef _SKIA_SUPPORT_
if (!m_pBitmap->GetBuffer())
return true;
CFX_Matrix m(dest_width, 0, 0, -dest_height, dest_left,
@@ -1423,6 +1724,27 @@ bool CFX_SkiaDeviceDriver::StretchDIBits(const CFX_DIBSource* pSource,
m_pCanvas->restore();
return result;
+#else
+ if (dest_width == pSource->GetWidth() &&
+ dest_height == pSource->GetHeight()) {
+ FX_RECT rect(0, 0, dest_width, dest_height);
+ return SetDIBits(pSource, argb, &rect, dest_left, dest_top, blend_type);
+ }
+ FX_RECT dest_rect(dest_left, dest_top, dest_left + dest_width,
+ dest_top + dest_height);
+ dest_rect.Normalize();
+ FX_RECT dest_clip = dest_rect;
+ dest_clip.Intersect(*pClipRect);
+ CFX_BitmapComposer composer;
+ composer.Compose(m_pBitmap, m_pClipRgn.get(), 255, argb, dest_clip, false,
+ false, false, m_bRgbByteOrder, 0, nullptr, blend_type);
+ dest_clip.Offset(-dest_rect.left, -dest_rect.top);
+ CFX_ImageStretcher stretcher(&composer, pSource, dest_width, dest_height,
+ dest_clip, flags);
+ if (stretcher.Start())
+ stretcher.Continue(nullptr);
+ return true;
+#endif
}
bool CFX_SkiaDeviceDriver::StartDIBits(const CFX_DIBSource* pSource,
@@ -1432,6 +1754,7 @@ bool CFX_SkiaDeviceDriver::StartDIBits(const CFX_DIBSource* pSource,
uint32_t render_flags,
void*& handle,
int blend_type) {
+#ifdef _SKIA_SUPPORT_
DebugValidate(m_pBitmap, m_pOriDevice);
SkColorTable* ct = nullptr;
std::unique_ptr<uint8_t, FxFreeDeleter> dst8Storage;
@@ -1470,13 +1793,30 @@ bool CFX_SkiaDeviceDriver::StartDIBits(const CFX_DIBSource* pSource,
if (ct)
ct->unref();
DebugValidate(m_pBitmap, m_pOriDevice);
+#else
+ if (!m_pBitmap->GetBuffer())
+ return true;
+
+ CFX_ImageRenderer* pRenderer = new CFX_ImageRenderer;
+ pRenderer->Start(m_pBitmap, m_pClipRgn.get(), pSource, bitmap_alpha, argb,
+ pMatrix, render_flags, m_bRgbByteOrder, 0, nullptr);
+ handle = pRenderer;
+#endif
return true;
}
bool CFX_SkiaDeviceDriver::ContinueDIBits(void* handle, IFX_Pause* pPause) {
+#ifdef _SKIA_SUPPORT_
return false;
+#else
+ if (!m_pBitmap->GetBuffer()) {
+ return true;
+ }
+ return static_cast<CFX_ImageRenderer*>(handle)->Continue(pPause);
+#endif
}
+#ifdef _SKIA_SUPPORT_
void CFX_SkiaDeviceDriver::PreMultiply(CFX_DIBitmap* pDIBitmap) {
void* buffer = pDIBitmap->GetBuffer();
if (!buffer)
@@ -1557,6 +1897,7 @@ bool CFX_SkiaDeviceDriver::SetBitsWithMask(const CFX_DIBSource* pBitmap,
void CFX_SkiaDeviceDriver::Clear(uint32_t color) {
m_pCanvas->clear(color);
}
+#endif
void CFX_SkiaDeviceDriver::Dump() const {
#ifdef SK_DEBUG
@@ -1565,15 +1906,20 @@ void CFX_SkiaDeviceDriver::Dump() const {
#endif
}
+#ifdef _SKIA_SUPPORT_
void CFX_SkiaDeviceDriver::DebugVerifyBitmapIsPreMultiplied() const {
if (m_pOriDevice)
m_pOriDevice->DebugVerifyBitmapIsPreMultiplied();
}
+#endif
CFX_FxgeDevice::CFX_FxgeDevice() {
+#ifdef _SKIA_SUPPORT_
m_bOwnedBitmap = false;
+#endif
}
+#ifdef _SKIA_SUPPORT_
void CFX_FxgeDevice::Clear(uint32_t color) {
CFX_SkiaDeviceDriver* skDriver =
static_cast<CFX_SkiaDeviceDriver*>(GetDeviceDriver());
@@ -1585,6 +1931,7 @@ SkPictureRecorder* CFX_FxgeDevice::CreateRecorder(int size_x, int size_y) {
SetDeviceDriver(pdfium::WrapUnique(skDriver));
return skDriver->GetRecorder();
}
+#endif
bool CFX_FxgeDevice::Attach(CFX_DIBitmap* pBitmap,
bool bRgbByteOrder,
@@ -1598,12 +1945,14 @@ bool CFX_FxgeDevice::Attach(CFX_DIBitmap* pBitmap,
return true;
}
+#ifdef _SKIA_SUPPORT_
bool CFX_FxgeDevice::AttachRecorder(SkPictureRecorder* recorder) {
if (!recorder)
return false;
SetDeviceDriver(pdfium::MakeUnique<CFX_SkiaDeviceDriver>(recorder));
return true;
}
+#endif
bool CFX_FxgeDevice::Create(int width,
int height,
@@ -1622,12 +1971,15 @@ bool CFX_FxgeDevice::Create(int width,
}
CFX_FxgeDevice::~CFX_FxgeDevice() {
+#ifdef _SKIA_SUPPORT_
Flush();
// call destructor of CFX_RenderDevice / CFX_SkiaDeviceDriver immediately
if (m_bOwnedBitmap && GetBitmap())
delete GetBitmap();
+#endif
}
+#ifdef _SKIA_SUPPORT_
void CFX_FxgeDevice::DebugVerifyBitmapIsPreMultiplied() const {
#ifdef SK_DEBUG
CFX_SkiaDeviceDriver* skDriver =
@@ -1673,3 +2025,835 @@ void CFX_DIBSource::DebugVerifyBitmapIsPreMultiplied(void* opt) const {
}
#endif
}
+#endif
+
+#ifndef _SKIA_SUPPORT_
+class CFX_Renderer {
+ private:
+ int m_Alpha, m_Red, m_Green, m_Blue, m_Gray;
+ uint32_t m_Color;
+ bool m_bFullCover;
+ bool m_bRgbByteOrder;
+ CFX_DIBitmap* m_pOriDevice;
+ FX_RECT m_ClipBox;
+ const CFX_DIBitmap* m_pClipMask;
+ CFX_DIBitmap* m_pDevice;
+ const CFX_ClipRgn* m_pClipRgn;
+ void (CFX_Renderer::*composite_span)(uint8_t*,
+ int,
+ int,
+ int,
+ uint8_t*,
+ int,
+ int,
+ uint8_t*,
+ uint8_t*);
+
+ public:
+ void prepare(unsigned) {}
+
+ void CompositeSpan(uint8_t* dest_scan,
+ uint8_t* ori_scan,
+ int Bpp,
+ bool bDestAlpha,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan) {
+ ASSERT(!m_pDevice->IsCmykImage());
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ if (Bpp) {
+ dest_scan += col_start * Bpp;
+ ori_scan += col_start * Bpp;
+ } else {
+ dest_scan += col_start / 8;
+ ori_scan += col_start / 8;
+ }
+ if (m_bRgbByteOrder) {
+ if (Bpp == 4 && bDestAlpha) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ uint8_t dest_alpha =
+ ori_scan[3] + src_alpha - ori_scan[3] * src_alpha / 255;
+ dest_scan[3] = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ if (m_bFullCover) {
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio);
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio);
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio);
+ dest_scan++;
+ ori_scan++;
+ } else {
+ int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio);
+ int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio);
+ int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio);
+ ori_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]);
+ dest_scan += 2;
+ }
+ }
+ return;
+ }
+ if (Bpp == 3 || Bpp == 4) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, src_alpha);
+ int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
+ int b = FXDIB_ALPHA_MERGE(*ori_scan, m_Blue, src_alpha);
+ ori_scan += Bpp - 2;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]);
+ dest_scan += Bpp - 2;
+ }
+ }
+ return;
+ }
+ if (Bpp == 4 && bDestAlpha) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ int src_alpha_covered = src_alpha * cover_scan[col] / 255;
+ if (src_alpha_covered == 0) {
+ dest_scan += 4;
+ continue;
+ }
+ if (cover_scan[col] == 255) {
+ dest_scan[3] = src_alpha_covered;
+ *dest_scan++ = m_Blue;
+ *dest_scan++ = m_Green;
+ *dest_scan = m_Red;
+ dest_scan += 2;
+ continue;
+ } else {
+ if (dest_scan[3] == 0) {
+ dest_scan[3] = src_alpha_covered;
+ *dest_scan++ = m_Blue;
+ *dest_scan++ = m_Green;
+ *dest_scan = m_Red;
+ dest_scan += 2;
+ continue;
+ }
+ uint8_t cover = cover_scan[col];
+ dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], src_alpha, cover);
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover);
+ dest_scan += 2;
+ }
+ }
+ return;
+ }
+ if (Bpp == 3 || Bpp == 4) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ if (m_bFullCover) {
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha);
+ *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
+ *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha);
+ dest_scan += Bpp - 2;
+ ori_scan += Bpp - 2;
+ continue;
+ }
+ int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha);
+ int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha);
+ int r = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha);
+ ori_scan += Bpp - 2;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]);
+ dest_scan += Bpp - 2;
+ continue;
+ }
+ return;
+ }
+ if (Bpp == 1) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ if (m_bFullCover) {
+ *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha);
+ } else {
+ int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha);
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan[col]);
+ dest_scan++;
+ }
+ }
+ } else {
+ int index = 0;
+ if (m_pDevice->GetPalette()) {
+ for (int i = 0; i < 2; i++) {
+ if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) {
+ index = i;
+ }
+ }
+ } else {
+ index = ((uint8_t)m_Color == 0xff) ? 1 : 0;
+ }
+ uint8_t* dest_scan1 = dest_scan;
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ if (src_alpha) {
+ if (!index) {
+ *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8));
+ } else {
+ *dest_scan1 |= 1 << (7 - (col + span_left) % 8);
+ }
+ }
+ dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8;
+ }
+ }
+ }
+
+ void CompositeSpan1bpp(uint8_t* dest_scan,
+ int Bpp,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan,
+ uint8_t* dest_extra_alpha_scan) {
+ ASSERT(!m_bRgbByteOrder);
+ ASSERT(!m_pDevice->IsCmykImage());
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ dest_scan += col_start / 8;
+ int index = 0;
+ if (m_pDevice->GetPalette()) {
+ for (int i = 0; i < 2; i++) {
+ if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) {
+ index = i;
+ }
+ }
+ } else {
+ index = ((uint8_t)m_Color == 0xff) ? 1 : 0;
+ }
+ uint8_t* dest_scan1 = dest_scan;
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ if (src_alpha) {
+ if (!index) {
+ *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8));
+ } else {
+ *dest_scan1 |= 1 << (7 - (col + span_left) % 8);
+ }
+ }
+ dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8;
+ }
+ }
+
+ void CompositeSpanGray(uint8_t* dest_scan,
+ int Bpp,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan,
+ uint8_t* dest_extra_alpha_scan) {
+ ASSERT(!m_bRgbByteOrder);
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ dest_scan += col_start;
+ if (dest_extra_alpha_scan) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *dest_scan = m_Gray;
+ *dest_extra_alpha_scan = m_Alpha;
+ } else {
+ uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha -
+ (*dest_extra_alpha_scan) * src_alpha / 255;
+ *dest_extra_alpha_scan++ = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, alpha_ratio);
+ dest_scan++;
+ continue;
+ }
+ }
+ dest_extra_alpha_scan++;
+ dest_scan++;
+ }
+ } else {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *dest_scan = m_Gray;
+ } else {
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha);
+ }
+ }
+ dest_scan++;
+ }
+ }
+ }
+
+ void CompositeSpanARGB(uint8_t* dest_scan,
+ int Bpp,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan,
+ uint8_t* dest_extra_alpha_scan) {
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ dest_scan += col_start * Bpp;
+ if (m_bRgbByteOrder) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *(uint32_t*)dest_scan = m_Color;
+ } else {
+ uint8_t dest_alpha =
+ dest_scan[3] + src_alpha - dest_scan[3] * src_alpha / 255;
+ dest_scan[3] = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio);
+ dest_scan += 2;
+ continue;
+ }
+ }
+ dest_scan += 4;
+ }
+ return;
+ }
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *(uint32_t*)dest_scan = m_Color;
+ } else {
+ if (dest_scan[3] == 0) {
+ dest_scan[3] = src_alpha;
+ *dest_scan++ = m_Blue;
+ *dest_scan++ = m_Green;
+ *dest_scan = m_Red;
+ dest_scan += 2;
+ continue;
+ }
+ uint8_t dest_alpha =
+ dest_scan[3] + src_alpha - dest_scan[3] * src_alpha / 255;
+ dest_scan[3] = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio);
+ dest_scan += 2;
+ continue;
+ }
+ }
+ dest_scan += Bpp;
+ }
+ }
+
+ void CompositeSpanRGB(uint8_t* dest_scan,
+ int Bpp,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan,
+ uint8_t* dest_extra_alpha_scan) {
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ dest_scan += col_start * Bpp;
+ if (m_bRgbByteOrder) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ if (Bpp == 4) {
+ *(uint32_t*)dest_scan = m_Color;
+ } else if (Bpp == 3) {
+ *dest_scan++ = m_Red;
+ *dest_scan++ = m_Green;
+ *dest_scan++ = m_Blue;
+ continue;
+ }
+ } else {
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha);
+ dest_scan += Bpp - 2;
+ continue;
+ }
+ }
+ dest_scan += Bpp;
+ }
+ return;
+ }
+ if (Bpp == 3 && dest_extra_alpha_scan) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *dest_scan++ = (uint8_t)m_Blue;
+ *dest_scan++ = (uint8_t)m_Green;
+ *dest_scan++ = (uint8_t)m_Red;
+ *dest_extra_alpha_scan++ = (uint8_t)m_Alpha;
+ continue;
+ } else {
+ uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha -
+ (*dest_extra_alpha_scan) * src_alpha / 255;
+ *dest_extra_alpha_scan++ = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio);
+ dest_scan++;
+ continue;
+ }
+ }
+ dest_extra_alpha_scan++;
+ dest_scan += Bpp;
+ }
+ } else {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ if (Bpp == 4) {
+ *(uint32_t*)dest_scan = m_Color;
+ } else if (Bpp == 3) {
+ *dest_scan++ = m_Blue;
+ *dest_scan++ = m_Green;
+ *dest_scan++ = m_Red;
+ continue;
+ }
+ } else {
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha);
+ dest_scan += Bpp - 2;
+ continue;
+ }
+ }
+ dest_scan += Bpp;
+ }
+ }
+ }
+
+ void CompositeSpanCMYK(uint8_t* dest_scan,
+ int Bpp,
+ int span_left,
+ int span_len,
+ uint8_t* cover_scan,
+ int clip_left,
+ int clip_right,
+ uint8_t* clip_scan,
+ uint8_t* dest_extra_alpha_scan) {
+ ASSERT(!m_bRgbByteOrder);
+ int col_start = span_left < clip_left ? clip_left - span_left : 0;
+ int col_end = (span_left + span_len) < clip_right
+ ? span_len
+ : (clip_right - span_left);
+ dest_scan += col_start * 4;
+ if (dest_extra_alpha_scan) {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (m_bFullCover) {
+ if (clip_scan) {
+ src_alpha = m_Alpha * clip_scan[col] / 255;
+ } else {
+ src_alpha = m_Alpha;
+ }
+ } else {
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *(FX_CMYK*)dest_scan = m_Color;
+ *dest_extra_alpha_scan = (uint8_t)m_Alpha;
+ } else {
+ uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha -
+ (*dest_extra_alpha_scan) * src_alpha / 255;
+ *dest_extra_alpha_scan++ = dest_alpha;
+ int alpha_ratio = src_alpha * 255 / dest_alpha;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, alpha_ratio);
+ dest_scan++;
+ continue;
+ }
+ }
+ dest_extra_alpha_scan++;
+ dest_scan += 4;
+ }
+ } else {
+ for (int col = col_start; col < col_end; col++) {
+ int src_alpha;
+ if (clip_scan) {
+ src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255;
+ } else {
+ src_alpha = m_Alpha * cover_scan[col] / 255;
+ }
+ if (src_alpha) {
+ if (src_alpha == 255) {
+ *(FX_CMYK*)dest_scan = m_Color;
+ } else {
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha);
+ dest_scan++;
+ *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha);
+ dest_scan++;
+ continue;
+ }
+ }
+ dest_scan += 4;
+ }
+ }
+ }
+
+ template <class Scanline>
+ void render(const Scanline& sl) {
+ if (!m_pOriDevice && !composite_span) {
+ return;
+ }
+ int y = sl.y();
+ if (y < m_ClipBox.top || y >= m_ClipBox.bottom) {
+ return;
+ }
+ uint8_t* dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * y;
+ uint8_t* dest_scan_extra_alpha = nullptr;
+ CFX_DIBitmap* pAlphaMask = m_pDevice->m_pAlphaMask;
+ if (pAlphaMask) {
+ dest_scan_extra_alpha =
+ pAlphaMask->GetBuffer() + pAlphaMask->GetPitch() * y;
+ }
+ uint8_t* ori_scan = nullptr;
+ if (m_pOriDevice) {
+ ori_scan = m_pOriDevice->GetBuffer() + m_pOriDevice->GetPitch() * y;
+ }
+ int Bpp = m_pDevice->GetBPP() / 8;
+ bool bDestAlpha = m_pDevice->HasAlpha() || m_pDevice->IsAlphaMask();
+ unsigned num_spans = sl.num_spans();
+ typename Scanline::const_iterator span = sl.begin();
+ while (1) {
+ int x = span->x;
+ ASSERT(span->len > 0);
+ uint8_t* dest_pos = nullptr;
+ uint8_t* dest_extra_alpha_pos = nullptr;
+ uint8_t* ori_pos = nullptr;
+ if (Bpp) {
+ ori_pos = ori_scan ? ori_scan + x * Bpp : nullptr;
+ dest_pos = dest_scan + x * Bpp;
+ dest_extra_alpha_pos =
+ dest_scan_extra_alpha ? dest_scan_extra_alpha + x : nullptr;
+ } else {
+ dest_pos = dest_scan + x / 8;
+ ori_pos = ori_scan ? ori_scan + x / 8 : nullptr;
+ }
+ uint8_t* clip_pos = nullptr;
+ if (m_pClipMask) {
+ clip_pos = m_pClipMask->GetBuffer() +
+ (y - m_ClipBox.top) * m_pClipMask->GetPitch() + x -
+ m_ClipBox.left;
+ }
+ if (ori_pos) {
+ CompositeSpan(dest_pos, ori_pos, Bpp, bDestAlpha, x, span->len,
+ span->covers, m_ClipBox.left, m_ClipBox.right, clip_pos);
+ } else {
+ (this->*composite_span)(dest_pos, Bpp, x, span->len, span->covers,
+ m_ClipBox.left, m_ClipBox.right, clip_pos,
+ dest_extra_alpha_pos);
+ }
+ if (--num_spans == 0) {
+ break;
+ }
+ ++span;
+ }
+ }
+
+ bool Init(CFX_DIBitmap* pDevice,
+ CFX_DIBitmap* pOriDevice,
+ const CFX_ClipRgn* pClipRgn,
+ uint32_t color,
+ bool bFullCover,
+ bool bRgbByteOrder,
+ int alpha_flag = 0,
+ void* pIccTransform = nullptr) {
+ m_pDevice = pDevice;
+ m_pClipRgn = pClipRgn;
+ composite_span = nullptr;
+ m_bRgbByteOrder = bRgbByteOrder;
+ m_pOriDevice = pOriDevice;
+ if (m_pClipRgn) {
+ m_ClipBox = m_pClipRgn->GetBox();
+ } else {
+ m_ClipBox.left = m_ClipBox.top = 0;
+ m_ClipBox.right = m_pDevice->GetWidth();
+ m_ClipBox.bottom = m_pDevice->GetHeight();
+ }
+ m_pClipMask = nullptr;
+ if (m_pClipRgn && m_pClipRgn->GetType() == CFX_ClipRgn::MaskF) {
+ m_pClipMask = m_pClipRgn->GetMask().GetObject();
+ }
+ m_bFullCover = bFullCover;
+ bool bObjectCMYK = !!FXGETFLAG_COLORTYPE(alpha_flag);
+ bool bDeviceCMYK = pDevice->IsCmykImage();
+ m_Alpha = bObjectCMYK ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color);
+ CCodec_IccModule* pIccModule = nullptr;
+ if (!CFX_GEModule::Get()->GetCodecModule() ||
+ !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) {
+ pIccTransform = nullptr;
+ } else {
+ pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule();
+ }
+ if (m_pDevice->GetBPP() == 8) {
+ ASSERT(!m_bRgbByteOrder);
+ composite_span = &CFX_Renderer::CompositeSpanGray;
+ if (m_pDevice->IsAlphaMask()) {
+ m_Gray = 255;
+ } else {
+ if (pIccTransform) {
+ uint8_t gray;
+ color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
+ pIccModule->TranslateScanline(pIccTransform, &gray,
+ (const uint8_t*)&color, 1);
+ m_Gray = gray;
+ } else {
+ if (bObjectCMYK) {
+ uint8_t r, g, b;
+ AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color),
+ FXSYS_GetYValue(color), FXSYS_GetKValue(color),
+ r, g, b);
+ m_Gray = FXRGB2GRAY(r, g, b);
+ } else {
+ m_Gray =
+ FXRGB2GRAY(FXARGB_R(color), FXARGB_G(color), FXARGB_B(color));
+ }
+ }
+ }
+ return true;
+ }
+ if (bDeviceCMYK) {
+ ASSERT(!m_bRgbByteOrder);
+ composite_span = &CFX_Renderer::CompositeSpanCMYK;
+ if (bObjectCMYK) {
+ m_Color = FXCMYK_TODIB(color);
+ if (pIccTransform) {
+ pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color,
+ (const uint8_t*)&m_Color, 1);
+ }
+ } else {
+ if (!pIccTransform) {
+ return false;
+ }
+ color = FXARGB_TODIB(color);
+ pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color,
+ (const uint8_t*)&color, 1);
+ }
+ m_Red = ((uint8_t*)&m_Color)[0];
+ m_Green = ((uint8_t*)&m_Color)[1];
+ m_Blue = ((uint8_t*)&m_Color)[2];
+ m_Gray = ((uint8_t*)&m_Color)[3];
+ } else {
+ composite_span = (pDevice->GetFormat() == FXDIB_Argb)
+ ? &CFX_Renderer::CompositeSpanARGB
+ : &CFX_Renderer::CompositeSpanRGB;
+ if (pIccTransform) {
+ color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color);
+ pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color,
+ (const uint8_t*)&color, 1);
+ ((uint8_t*)&m_Color)[3] = m_Alpha;
+ m_Red = ((uint8_t*)&m_Color)[2];
+ m_Green = ((uint8_t*)&m_Color)[1];
+ m_Blue = ((uint8_t*)&m_Color)[0];
+ if (m_bRgbByteOrder) {
+ m_Color = FXARGB_TODIB(m_Color);
+ m_Color = FXARGB_TOBGRORDERDIB(m_Color);
+ }
+ } else {
+ if (bObjectCMYK) {
+ uint8_t r, g, b;
+ AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color),
+ FXSYS_GetYValue(color), FXSYS_GetKValue(color), r,
+ g, b);
+ m_Color = FXARGB_MAKE(m_Alpha, r, g, b);
+ if (m_bRgbByteOrder) {
+ m_Color = FXARGB_TOBGRORDERDIB(m_Color);
+ } else {
+ m_Color = FXARGB_TODIB(m_Color);
+ }
+ m_Red = r;
+ m_Green = g;
+ m_Blue = b;
+ } else {
+ if (m_bRgbByteOrder) {
+ m_Color = FXARGB_TOBGRORDERDIB(color);
+ } else {
+ m_Color = FXARGB_TODIB(color);
+ }
+ ArgbDecode(color, m_Alpha, m_Red, m_Green, m_Blue);
+ }
+ }
+ }
+ if (m_pDevice->GetBPP() == 1) {
+ composite_span = &CFX_Renderer::CompositeSpan1bpp;
+ }
+ return true;
+ }
+};
+
+#endif
« no previous file with comments | « core/fxge/skia/fx_skia_device.h ('k') | core/fxge/skia/fx_skia_device_unittest.cpp » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698