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path: root/core/fxge/dib/cstretchengine.cpp
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Diffstat (limited to 'core/fxge/dib/cstretchengine.cpp')
-rw-r--r--core/fxge/dib/cstretchengine.cpp62
1 files changed, 32 insertions, 30 deletions
diff --git a/core/fxge/dib/cstretchengine.cpp b/core/fxge/dib/cstretchengine.cpp
index 969ab03667..7a582b537f 100644
--- a/core/fxge/dib/cstretchengine.cpp
+++ b/core/fxge/dib/cstretchengine.cpp
@@ -43,12 +43,12 @@ bool CStretchEngine::CWeightTable::Calc(int dest_len,
int src_len,
int src_min,
int src_max,
- int flags) {
+ const FXDIB_ResampleOptions& options) {
m_WeightTables.clear();
m_dwWeightTablesSize = 0;
const double scale = static_cast<float>(src_len) / dest_len;
const double base = dest_len < 0 ? src_len : 0;
- const int ext_size = flags & FXDIB_BICUBIC_INTERPOL ? 3 : 1;
+ const int ext_size = options.bInterpolateBicubic ? 3 : 1;
m_ItemSize =
sizeof(int) * 2 +
static_cast<int>(sizeof(int) *
@@ -60,11 +60,11 @@ bool CStretchEngine::CWeightTable::Calc(int dest_len,
m_dwWeightTablesSize = (dest_max - dest_min) * m_ItemSize + 4;
m_WeightTables.resize(m_dwWeightTablesSize);
- if ((flags & FXDIB_NOSMOOTH) != 0 || fabs(static_cast<float>(scale)) < 1.0f) {
+ if (options.bNoSmoothing || fabs(static_cast<float>(scale)) < 1.0f) {
for (int dest_pixel = dest_min; dest_pixel < dest_max; ++dest_pixel) {
PixelWeight& pixel_weights = *GetPixelWeight(dest_pixel);
double src_pos = dest_pixel * scale + scale / 2 + base;
- if (flags & FXDIB_INTERPOL) {
+ if (options.bInterpolateBilinear) {
pixel_weights.m_SrcStart =
static_cast<int>(floor(static_cast<float>(src_pos) - 1.0f / 2));
pixel_weights.m_SrcEnd =
@@ -80,7 +80,7 @@ bool CStretchEngine::CWeightTable::Calc(int dest_len,
65536);
pixel_weights.m_Weights[0] = 65536 - pixel_weights.m_Weights[1];
}
- } else if (flags & FXDIB_BICUBIC_INTERPOL) {
+ } else if (options.bInterpolateBicubic) {
pixel_weights.m_SrcStart =
static_cast<int>(floor(static_cast<float>(src_pos) - 1.0f / 2));
pixel_weights.m_SrcEnd =
@@ -229,7 +229,7 @@ CStretchEngine::CStretchEngine(ScanlineComposerIface* pDestBitmap,
int dest_height,
const FX_RECT& clip_rect,
const RetainPtr<CFX_DIBBase>& pSrcBitmap,
- int flags)
+ const FXDIB_ResampleOptions& options)
: m_DestFormat(dest_format),
m_DestBpp(GetBppFromFormat(dest_format)),
m_SrcBpp(GetBppFromFormat(pSrcBitmap->GetFormat())),
@@ -256,18 +256,19 @@ CStretchEngine::CStretchEngine(ScanlineComposerIface* pDestBitmap,
std::fill(m_DestScanline.begin(), m_DestScanline.end(), 255);
m_InterPitch = GetPitchRoundUpTo4Bytes(m_DestClip.Width() * m_DestBpp);
m_ExtraMaskPitch = GetPitchRoundUpTo4Bytes(m_DestClip.Width() * 8);
- if ((flags & FXDIB_NOSMOOTH) == 0) {
- bool bInterpol = flags & FXDIB_INTERPOL || flags & FXDIB_BICUBIC_INTERPOL;
+ if (options.bNoSmoothing) {
+ m_ResampleOptions.bNoSmoothing = true;
+ m_ResampleOptions.bInterpolateDownsample = options.bInterpolateDownsample;
+ } else {
+ bool bInterpol =
+ options.bInterpolateBilinear || options.bInterpolateBicubic;
if (!bInterpol && abs(dest_width) != 0 &&
abs(dest_height) / 8 < static_cast<long long>(m_SrcWidth) *
m_SrcHeight / abs(dest_width)) {
- flags = FXDIB_INTERPOL;
+ m_ResampleOptions.bInterpolateBilinear = true;
+ } else {
+ m_ResampleOptions = options;
}
- m_Flags = flags;
- } else {
- m_Flags = FXDIB_NOSMOOTH;
- if (flags & FXDIB_DOWNSAMPLE)
- m_Flags |= FXDIB_DOWNSAMPLE;
}
double scale_x = static_cast<float>(m_SrcWidth) / m_DestWidth;
double scale_y = static_cast<float>(m_SrcHeight) / m_DestHeight;
@@ -336,9 +337,9 @@ bool CStretchEngine::StartStretchHorz() {
m_ExtraAlphaBuf.resize(m_SrcClip.Height(), m_ExtraMaskPitch);
m_DestMaskScanline.resize(m_ExtraMaskPitch);
}
- bool ret =
- m_WeightTable.Calc(m_DestWidth, m_DestClip.left, m_DestClip.right,
- m_SrcWidth, m_SrcClip.left, m_SrcClip.right, m_Flags);
+ bool ret = m_WeightTable.Calc(m_DestWidth, m_DestClip.left, m_DestClip.right,
+ m_SrcWidth, m_SrcClip.left, m_SrcClip.right,
+ m_ResampleOptions);
if (!ret)
return false;
@@ -390,7 +391,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
if (src_scan[j / 8] & (1 << (7 - j % 8)))
dest_a += pixel_weight * 255;
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL)
+ if (m_ResampleOptions.bInterpolateBicubic)
dest_a = pdfium::clamp(dest_a, 0, kMaxDestValue);
*dest_scan++ = static_cast<uint8_t>(dest_a >> 16);
}
@@ -408,7 +409,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
int pixel_weight = *pWeight;
dest_a += pixel_weight * src_scan[j];
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL)
+ if (m_ResampleOptions.bInterpolateBicubic)
dest_a = pdfium::clamp(dest_a, 0, kMaxDestValue);
*dest_scan++ = static_cast<uint8_t>(dest_a >> 16);
}
@@ -429,7 +430,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
dest_r += pixel_weight * src_scan[j];
dest_a += pixel_weight;
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_r = pdfium::clamp(dest_r, 0, kMaxDestValue);
dest_a = pdfium::clamp(dest_a, 0, 65536);
}
@@ -461,7 +462,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
dest_r_y += pixel_weight * static_cast<uint8_t>(argb_cmyk >> 8);
}
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
@@ -498,7 +499,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
}
dest_a += pixel_weight;
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
@@ -528,7 +529,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
dest_g_m += pixel_weight * (*src_pixel++);
dest_r_y += pixel_weight * (*src_pixel);
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
@@ -564,7 +565,7 @@ bool CStretchEngine::ContinueStretchHorz(PauseIndicatorIface* pPause) {
dest_r_y += pixel_weight * (*src_pixel);
dest_a += pixel_weight;
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
@@ -592,8 +593,9 @@ void CStretchEngine::StretchVert() {
return;
CWeightTable table;
- bool ret = table.Calc(m_DestHeight, m_DestClip.top, m_DestClip.bottom,
- m_SrcHeight, m_SrcClip.top, m_SrcClip.bottom, m_Flags);
+ bool ret =
+ table.Calc(m_DestHeight, m_DestClip.top, m_DestClip.bottom, m_SrcHeight,
+ m_SrcClip.top, m_SrcClip.bottom, m_ResampleOptions);
if (!ret)
return;
@@ -619,7 +621,7 @@ void CStretchEngine::StretchVert() {
dest_a +=
pixel_weight * src_scan[(j - m_SrcClip.top) * m_InterPitch];
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL)
+ if (m_ResampleOptions.bInterpolateBicubic)
dest_a = pdfium::clamp(dest_a, 0, kMaxDestValue);
*dest_scan = static_cast<uint8_t>(dest_a >> 16);
dest_scan += DestBpp;
@@ -645,7 +647,7 @@ void CStretchEngine::StretchVert() {
dest_a += pixel_weight *
src_scan_mask[(j - m_SrcClip.top) * m_ExtraMaskPitch];
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_k = pdfium::clamp(dest_k, 0, kMaxDestValue);
dest_a = pdfium::clamp(dest_a, 0, kMaxDestValue);
}
@@ -675,7 +677,7 @@ void CStretchEngine::StretchVert() {
dest_g_m += pixel_weight * (*src_pixel++);
dest_r_y += pixel_weight * (*src_pixel);
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
@@ -718,7 +720,7 @@ void CStretchEngine::StretchVert() {
else
dest_a += pixel_weight * mask_v;
}
- if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
+ if (m_ResampleOptions.bInterpolateBicubic) {
dest_r_y = pdfium::clamp(dest_r_y, 0, kMaxDestValue);
dest_g_m = pdfium::clamp(dest_g_m, 0, kMaxDestValue);
dest_b_c = pdfium::clamp(dest_b_c, 0, kMaxDestValue);
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-19 09:01:37 +0000