From c5bfeec86aa70c2ec573c183bd3a8390a3d903e6 Mon Sep 17 00:00:00 2001 From: Lei Zhang Date: Mon, 4 Dec 2017 14:35:05 +0000 Subject: Add functions for common code in CFX_ImageTransformer. Change-Id: I556934f61f24883e684865e4a8fc5e0519248cee Reviewed-on: https://pdfium-review.googlesource.com/20251 Commit-Queue: dsinclair Reviewed-by: dsinclair --- core/fxge/dib/cfx_imagetransformer.cpp | 181 +++++++++------------------------ core/fxge/dib/cfx_imagetransformer.h | 15 +++ 2 files changed, 63 insertions(+), 133 deletions(-) (limited to 'core/fxge/dib') diff --git a/core/fxge/dib/cfx_imagetransformer.cpp b/core/fxge/dib/cfx_imagetransformer.cpp index 51b75350e6..3be1dbe463 100644 --- a/core/fxge/dib/cfx_imagetransformer.cpp +++ b/core/fxge/dib/cfx_imagetransformer.cpp @@ -40,9 +40,9 @@ uint8_t bilinear_interpol(const uint8_t* buf, uint8_t bicubic_interpol(const uint8_t* buf, int pitch, - int pos_pixel[], - int u_w[], - int v_w[], + const int pos_pixel[], + const int u_w[], + const int v_w[], int res_x, int res_y, int bpp, @@ -290,7 +290,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { pTransformed->m_pAlphaMask->Clear(0xff000000); } else if (pTransformed->m_pAlphaMask) { int stretch_pitch_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetPitch(); - if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + if (IsBilinear()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos_mask = @@ -302,22 +302,11 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && - src_row_l <= stretch_height) { - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + if (InStretchBounds(src_col_l, src_row_l)) { + AdjustCoords(&src_col_l, &src_row_l); int src_col_r = src_col_l + 1; int src_row_r = src_row_l + 1; - if (src_col_r == stretch_width) { - src_col_r--; - } - if (src_row_r == stretch_height) { - src_row_r--; - } + AdjustCoords(&src_col_r, &src_row_r); int row_offset_l = src_row_l * stretch_pitch_mask; int row_offset_r = src_row_r * stretch_pitch_mask; *dest_pos_mask = @@ -327,7 +316,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { dest_pos_mask++; } } - } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + } else if (IsBiCubic()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos_mask = @@ -339,16 +328,10 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && - src_row_l <= stretch_height) { + if (InStretchBounds(src_col_l, src_row_l)) { int pos_pixel[8]; int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + AdjustCoords(&src_col_l, &src_row_l); bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); *dest_pos_mask = @@ -367,14 +350,8 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int src_col = 0; int src_row = 0; result2stretch_fix.Transform(col, row, &src_col, &src_row); - if (src_col >= 0 && src_col <= stretch_width && src_row >= 0 && - src_row <= stretch_height) { - if (src_col == stretch_width) { - src_col--; - } - if (src_row == stretch_height) { - src_row--; - } + if (InStretchBounds(src_col, src_row)) { + AdjustCoords(&src_col, &src_row); *dest_pos_mask = stretch_buf_mask[src_row * stretch_pitch_mask + src_col]; } @@ -384,7 +361,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { } } if (m_Storer.GetBitmap()->IsAlphaMask()) { - if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + if (IsBilinear()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_scan = (uint8_t*)pTransformed->GetScanline(row); @@ -395,22 +372,11 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && - src_row_l <= stretch_height) { - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + if (InStretchBounds(src_col_l, src_row_l)) { + AdjustCoords(&src_col_l, &src_row_l); int src_col_r = src_col_l + 1; int src_row_r = src_row_l + 1; - if (src_col_r == stretch_width) { - src_col_r--; - } - if (src_row_r == stretch_height) { - src_row_r--; - } + AdjustCoords(&src_col_r, &src_row_r); int row_offset_l = src_row_l * stretch_pitch; int row_offset_r = src_row_r * stretch_pitch; *dest_scan = @@ -420,7 +386,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { dest_scan++; } } - } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + } else if (IsBiCubic()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_scan = (uint8_t*)pTransformed->GetScanline(row); @@ -431,16 +397,10 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && src_row_l >= 0 && - src_row_l <= stretch_height) { + if (InStretchBounds(src_col_l, src_row_l)) { int pos_pixel[8]; int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + AdjustCoords(&src_col_l, &src_row_l); bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); *dest_scan = bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, @@ -457,14 +417,8 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int src_col = 0; int src_row = 0; result2stretch_fix.Transform(col, row, &src_col, &src_row); - if (src_col >= 0 && src_col <= stretch_width && src_row >= 0 && - src_row <= stretch_height) { - if (src_col == stretch_width) { - src_col--; - } - if (src_row == stretch_height) { - src_row--; - } + if (InStretchBounds(src_col, src_row)) { + AdjustCoords(&src_col, &src_row); const uint8_t* src_pixel = stretch_buf + stretch_pitch * src_row + src_col; *dest_scan = *src_pixel; @@ -494,8 +448,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { } } int destBpp = pTransformed->GetBPP() / 8; - if (!(m_Flags & FXDIB_DOWNSAMPLE) && - !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + if (IsBilinear()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); @@ -506,22 +459,11 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && - src_row_l >= 0 && src_row_l <= stretch_height) { - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + if (InStretchBounds(src_col_l, src_row_l)) { + AdjustCoords(&src_col_l, &src_row_l); int src_col_r = src_col_l + 1; int src_row_r = src_row_l + 1; - if (src_col_r == stretch_width) { - src_col_r--; - } - if (src_row_r == stretch_height) { - src_row_r--; - } + AdjustCoords(&src_col_r, &src_row_r); int row_offset_l = src_row_l * stretch_pitch; int row_offset_r = src_row_r * stretch_pitch; uint32_t r_bgra_cmyk = argb[bilinear_interpol( @@ -538,7 +480,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { dest_pos += destBpp; } } - } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + } else if (IsBiCubic()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); @@ -549,16 +491,10 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int res_y = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && - src_row_l >= 0 && src_row_l <= stretch_height) { + if (InStretchBounds(src_col_l, src_row_l)) { int pos_pixel[8]; int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + AdjustCoords(&src_col_l, &src_row_l); bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); @@ -584,14 +520,8 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int src_col = 0; int src_row = 0; result2stretch_fix.Transform(col, row, &src_col, &src_row); - if (src_col >= 0 && src_col <= stretch_width && src_row >= 0 && - src_row <= stretch_height) { - if (src_col == stretch_width) { - src_col--; - } - if (src_row == stretch_height) { - src_row--; - } + if (InStretchBounds(src_col, src_row)) { + AdjustCoords(&src_col, &src_row); uint32_t r_bgra_cmyk = argb[stretch_buf[src_row * stretch_pitch + src_col]]; if (transformF == FXDIB_Rgba) { @@ -609,8 +539,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { } else { bool bHasAlpha = m_Storer.GetBitmap()->HasAlpha(); int destBpp = pTransformed->GetBPP() / 8; - if (!(m_Flags & FXDIB_DOWNSAMPLE) && - !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + if (IsBilinear()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); @@ -622,22 +551,11 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int r_pos_k_r = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && - src_row_l >= 0 && src_row_l <= stretch_height) { - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + if (InStretchBounds(src_col_l, src_row_l)) { + AdjustCoords(&src_col_l, &src_row_l); int src_col_r = src_col_l + 1; int src_row_r = src_row_l + 1; - if (src_col_r == stretch_width) { - src_col_r--; - } - if (src_row_r == stretch_height) { - src_row_r--; - } + AdjustCoords(&src_col_r, &src_row_r); int row_offset_l = src_row_l * stretch_pitch; int row_offset_r = src_row_r * stretch_pitch; uint8_t r_pos_red_y_r = @@ -690,7 +608,7 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { dest_pos += destBpp; } } - } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + } else if (IsBiCubic()) { CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); for (int row = 0; row < m_result.Height(); row++) { uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); @@ -702,16 +620,10 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int r_pos_k_r = 0; result2stretch_fix.Transform(col, row, &src_col_l, &src_row_l, &res_x, &res_y); - if (src_col_l >= 0 && src_col_l <= stretch_width && - src_row_l >= 0 && src_row_l <= stretch_height) { + if (InStretchBounds(src_col_l, src_row_l)) { int pos_pixel[8]; int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } + AdjustCoords(&src_col_l, &src_row_l); bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); @@ -773,14 +685,8 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { int src_col = 0; int src_row = 0; result2stretch_fix.Transform(col, row, &src_col, &src_row); - if (src_col >= 0 && src_col <= stretch_width && src_row >= 0 && - src_row <= stretch_height) { - if (src_col == stretch_width) { - src_col--; - } - if (src_row == stretch_height) { - src_row--; - } + if (InStretchBounds(src_col, src_row)) { + AdjustCoords(&src_col, &src_row); const uint8_t* src_pos = stretch_buf + src_row * stretch_pitch + src_col * Bpp; if (bHasAlpha) { @@ -820,3 +726,12 @@ bool CFX_ImageTransformer::Continue(IFX_PauseIndicator* pPause) { RetainPtr CFX_ImageTransformer::DetachBitmap() { return m_Storer.Detach(); } + +void CFX_ImageTransformer::AdjustCoords(int* col, int* row) const { + int& src_col = *col; + int& src_row = *row; + if (src_col == stretch_width()) + src_col--; + if (src_row == stretch_height()) + src_row--; +} diff --git a/core/fxge/dib/cfx_imagetransformer.h b/core/fxge/dib/cfx_imagetransformer.h index 40d51ec2a1..dcda687d42 100644 --- a/core/fxge/dib/cfx_imagetransformer.h +++ b/core/fxge/dib/cfx_imagetransformer.h @@ -32,6 +32,21 @@ class CFX_ImageTransformer { RetainPtr DetachBitmap(); private: + bool IsBilinear() const { + return !(m_Flags & FXDIB_DOWNSAMPLE) && !IsBiCubic(); + } + bool IsBiCubic() const { return !!(m_Flags & FXDIB_BICUBIC_INTERPOL); } + + int stretch_width() const { return m_StretchClip.Width(); } + int stretch_height() const { return m_StretchClip.Height(); } + + bool InStretchBounds(int col, int row) const { + return col >= 0 && col <= stretch_width() && row >= 0 && + row <= stretch_height(); + } + + void AdjustCoords(int* col, int* row) const; + const RetainPtr m_pSrc; UnownedPtr const m_pMatrix; const FX_RECT* const m_pClip; -- cgit v1.2.3