diff options
author | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-23 17:28:10 -0700 |
---|---|---|
committer | John Abd-El-Malek <jabdelmalek@google.com> | 2014-05-23 17:41:56 -0700 |
commit | 3f3b45cc74b0499912409f766a595945dbbfc4c5 (patch) | |
tree | ec400b6965477b88ea7f0d335f7e5c52044c346c /core/src/fxge/dib/fx_dib_transform.cpp | |
parent | 6fe4aed948337175f6f7f81bb03c37b9c7f535da (diff) | |
download | pdfium-3f3b45cc74b0499912409f766a595945dbbfc4c5.tar.xz |
Convert all line endings to LF.
Diffstat (limited to 'core/src/fxge/dib/fx_dib_transform.cpp')
-rw-r--r-- | core/src/fxge/dib/fx_dib_transform.cpp | 1594 |
1 files changed, 797 insertions, 797 deletions
diff --git a/core/src/fxge/dib/fx_dib_transform.cpp b/core/src/fxge/dib/fx_dib_transform.cpp index 4d83005161..80475cbb1f 100644 --- a/core/src/fxge/dib/fx_dib_transform.cpp +++ b/core/src/fxge/dib/fx_dib_transform.cpp @@ -1,797 +1,797 @@ -// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
-
-#include "../../../include/fxge/fx_dib.h"
-#include "dib_int.h"
-int SDP_Table[513] = {
- 256, 256, 256, 256, 256, 256, 256, 256, 256, 255, 255, 255, 255, 255, 255, 254, 254, 254, 254,
- 253, 253, 253, 252, 252, 252, 251, 251, 251, 250, 250, 249, 249, 249, 248, 248, 247, 247, 246,
- 246, 245, 244, 244, 243, 243, 242, 242, 241, 240, 240, 239, 238, 238, 237, 236, 236, 235, 234,
- 233, 233, 232, 231, 230, 230, 229, 228, 227, 226, 226, 225, 224, 223, 222, 221, 220, 219, 218,
- 218, 217, 216, 215, 214, 213, 212, 211, 210, 209, 208, 207, 206, 205, 204, 203, 202, 201, 200,
- 199, 198, 196, 195, 194, 193, 192, 191, 190, 189, 188, 186, 185, 184, 183, 182, 181, 179, 178,
- 177, 176, 175, 173, 172, 171, 170, 169, 167, 166, 165, 164, 162, 161, 160, 159, 157, 156, 155,
- 154, 152, 151, 150, 149, 147, 146, 145, 143, 142, 141, 140, 138, 137, 136, 134, 133, 132, 130,
- 129, 128, 126, 125, 124, 122, 121, 120, 119, 117, 116, 115, 113, 112, 111, 109, 108, 107, 105,
- 104, 103, 101, 100, 99, 97, 96, 95, 93, 92, 91, 89, 88, 87, 85, 84, 83, 81, 80, 79, 77, 76, 75,
- 73, 72, 71, 69, 68, 67, 66, 64, 63, 62, 60, 59, 58, 57, 55, 54, 53, 52, 50, 49, 48, 47, 45, 44,
- 43, 42, 40, 39, 38, 37, 36, 34, 33, 32, 31, 30, 28, 27, 26, 25, 24, 23, 21, 20, 19, 18, 17, 16,
- 15, 14, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, -1, -2, -3, -4, -5, -6, -7, -7, -8, -9, -10,
- -11, -12, -12, -13, -14, -15, -15, -16, -17, -17, -18, -19, -19, -20, -21, -21, -22, -22, -23, -24,
- -24, -25, -25, -26, -26, -27, -27, -27, -28, -28, -29, -29, -30, -30, -30, -31, -31, -31, -32, -32,
- -32, -33, -33, -33, -33, -34, -34, -34, -34, -35, -35, -35, -35, -35, -36, -36, -36, -36, -36, -36,
- -36, -36, -36, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37,
- -37, -37, -37, -37, -36, -36, -36, -36, -36, -36, -36, -36, -36, -35, -35, -35, -35, -35, -35, -34,
- -34, -34, -34, -34, -33, -33, -33, -33, -33, -32, -32, -32, -32, -31, -31, -31, -31, -30, -30, -30,
- -30, -29, -29, -29, -29, -28, -28, -28, -27, -27, -27, -27, -26, -26, -26, -25, -25, -25, -24, -24,
- -24, -23, -23, -23, -22, -22, -22, -22, -21, -21, -21, -20, -20, -20, -19, -19, -19, -18, -18, -18,
- -17, -17, -17, -16, -16, -16, -15, -15, -15, -14, -14, -14, -13, -13, -13, -12, -12, -12, -11, -11,
- -11, -10, -10, -10, -9, -9, -9, -9, -8, -8, -8, -7, -7, -7, -7, -6, -6, -6, -6, -5, -5, -5, -5, -4,
- -4, -4, -4, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
-};
-class CFX_BilinearMatrix : public CPDF_FixedMatrix
-{
-public:
- CFX_BilinearMatrix(const CFX_AffineMatrix& src, int bits): CPDF_FixedMatrix(src, bits)
- {}
- inline void Transform(int x, int y, int& x1, int& y1, int&res_x, int&res_y)
- {
- x1 = a * x + c * y + e + base / 2;
- y1 = b * x + d * y + f + base / 2;
- res_x = x1 % base;
- res_y = y1 % base;
- if (res_x < 0 && res_x > -base) {
- res_x = base + res_x;
- }
- if (res_y < 0 && res_x > -base) {
- res_y = base + res_y;
- }
- x1 /= base;
- y1 /= base;
- }
-};
-CFX_DIBitmap* CFX_DIBSource::SwapXY(FX_BOOL bXFlip, FX_BOOL bYFlip, const FX_RECT* pDestClip) const
-{
- FX_RECT dest_clip(0, 0, m_Height, m_Width);
- if (pDestClip) {
- dest_clip.Intersect(*pDestClip);
- }
- if (dest_clip.IsEmpty()) {
- return NULL;
- }
- CFX_DIBitmap* pTransBitmap = FX_NEW CFX_DIBitmap;
- if (!pTransBitmap) {
- return NULL;
- }
- int result_height = dest_clip.Height(), result_width = dest_clip.Width();
- if (!pTransBitmap->Create(result_width, result_height, GetFormat())) {
- delete pTransBitmap;
- return NULL;
- }
- pTransBitmap->CopyPalette(m_pPalette);
- int src_pitch = m_Pitch;
- int dest_pitch = pTransBitmap->GetPitch();
- FX_LPBYTE dest_buf = pTransBitmap->GetBuffer();
- int row_start = bXFlip ? m_Height - dest_clip.right : dest_clip.left;
- int row_end = bXFlip ? m_Height - dest_clip.left : dest_clip.right;
- int col_start = bYFlip ? m_Width - dest_clip.bottom : dest_clip.top;
- int col_end = bYFlip ? m_Width - dest_clip.top : dest_clip.bottom;
- if (GetBPP() == 1) {
- FXSYS_memset8(dest_buf, 0xff, dest_pitch * result_height);
- for (int row = row_start; row < row_end; row ++) {
- FX_LPCBYTE src_scan = GetScanline(row);
- int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left;
- FX_LPBYTE dest_scan = dest_buf;
- if (bYFlip) {
- dest_scan += (result_height - 1) * dest_pitch;
- }
- int dest_step = bYFlip ? -dest_pitch : dest_pitch;
- for (int col = col_start; col < col_end; col ++) {
- if (!(src_scan[col / 8] & (1 << (7 - col % 8)))) {
- dest_scan[dest_col / 8] &= ~(1 << (7 - dest_col % 8));
- }
- dest_scan += dest_step;
- }
- }
- } else {
- int nBytes = GetBPP() / 8;
- int dest_step = bYFlip ? -dest_pitch : dest_pitch;
- if (nBytes == 3) {
- dest_step -= 2;
- }
- for (int row = row_start; row < row_end; row ++) {
- int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left;
- FX_LPBYTE dest_scan = dest_buf + dest_col * nBytes;
- if (bYFlip) {
- dest_scan += (result_height - 1) * dest_pitch;
- }
- if (nBytes == 4) {
- FX_DWORD* src_scan = (FX_DWORD*)GetScanline(row) + col_start;
- for (int col = col_start; col < col_end; col ++) {
- *(FX_DWORD*)dest_scan = *src_scan++;
- dest_scan += dest_step;
- }
- } else {
- FX_LPCBYTE src_scan = GetScanline(row) + col_start * nBytes;
- if (nBytes == 1)
- for (int col = col_start; col < col_end; col ++) {
- *dest_scan = *src_scan++;
- dest_scan += dest_step;
- }
- else
- for (int col = col_start; col < col_end; col ++) {
- *dest_scan++ = *src_scan++;
- *dest_scan++ = *src_scan++;
- *dest_scan = *src_scan++;
- dest_scan += dest_step;
- }
- }
- }
- }
- if (m_pAlphaMask) {
- src_pitch = m_pAlphaMask->m_Pitch;
- dest_pitch = pTransBitmap->m_pAlphaMask->GetPitch();
- dest_buf = pTransBitmap->m_pAlphaMask->GetBuffer();
- int dest_step = bYFlip ? -dest_pitch : dest_pitch;
- for (int row = row_start; row < row_end; row ++) {
- int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left;
- FX_LPBYTE dest_scan = dest_buf + dest_col;
- if (bYFlip) {
- dest_scan += (result_height - 1) * dest_pitch;
- }
- FX_LPCBYTE src_scan = m_pAlphaMask->GetScanline(row) + col_start;
- for (int col = col_start; col < col_end; col ++) {
- *dest_scan = *src_scan++;
- dest_scan += dest_step;
- }
- }
- }
- return pTransBitmap;
-}
-#define FIX16_005 0.05f
-FX_RECT _FXDIB_SwapClipBox(FX_RECT& clip, int width, int height, FX_BOOL bFlipX, FX_BOOL bFlipY)
-{
- FX_RECT rect;
- if (bFlipY) {
- rect.left = height - clip.top;
- rect.right = height - clip.bottom;
- } else {
- rect.left = clip.top;
- rect.right = clip.bottom;
- }
- if (bFlipX) {
- rect.top = width - clip.left;
- rect.bottom = width - clip.right;
- } else {
- rect.top = clip.left;
- rect.bottom = clip.right;
- }
- rect.Normalize();
- return rect;
-}
-CFX_DIBitmap* CFX_DIBSource::TransformTo(const CFX_AffineMatrix* pDestMatrix, int& result_left, int& result_top,
- FX_DWORD flags, const FX_RECT* pDestClip) const
-{
- CFX_ImageTransformer transformer;
- transformer.Start(this, pDestMatrix, flags, pDestClip);
- transformer.Continue(NULL);
- result_left = transformer.m_ResultLeft;
- result_top = transformer.m_ResultTop;
- CFX_DIBitmap* pTransformed = transformer.m_Storer.Detach();
- return pTransformed;
-}
-CFX_DIBitmap* CFX_DIBSource::StretchTo(int dest_width, int dest_height, FX_DWORD flags, const FX_RECT* pClip) const
-{
- FX_RECT clip_rect(0, 0, FXSYS_abs(dest_width), FXSYS_abs(dest_height));
- if (pClip) {
- clip_rect.Intersect(*pClip);
- }
- if (clip_rect.IsEmpty()) {
- return NULL;
- }
- if (dest_width == m_Width && dest_height == m_Height) {
- return Clone(&clip_rect);
- }
- CFX_ImageStretcher stretcher;
- CFX_BitmapStorer storer;
- if (stretcher.Start(&storer, this, dest_width, dest_height, clip_rect, flags)) {
- stretcher.Continue(NULL);
- }
- return storer.Detach();
-}
-CFX_ImageTransformer::CFX_ImageTransformer()
-{
- m_Status = 0;
- m_pMatrix = NULL;
-}
-CFX_ImageTransformer::~CFX_ImageTransformer()
-{
-}
-FX_BOOL CFX_ImageTransformer::Start(const CFX_DIBSource* pSrc, const CFX_AffineMatrix* pDestMatrix, int flags, const FX_RECT* pDestClip)
-{
- m_pMatrix = (CFX_AffineMatrix*)pDestMatrix;
- CFX_FloatRect unit_rect = pDestMatrix->GetUnitRect();
- FX_RECT result_rect = unit_rect.GetClosestRect();
- FX_RECT result_clip = result_rect;
- if (pDestClip) {
- result_clip.Intersect(*pDestClip);
- }
- if (result_clip.IsEmpty()) {
- return FALSE;
- }
- m_ResultLeft = result_clip.left;
- m_ResultTop = result_clip.top;
- m_ResultWidth = result_clip.Width();
- m_ResultHeight = result_clip.Height();
- m_Flags = flags;
- if (FXSYS_fabs(pDestMatrix->a) < FXSYS_fabs(pDestMatrix->b) / 20 &&
- FXSYS_fabs(pDestMatrix->d) < FXSYS_fabs(pDestMatrix->c) / 20 &&
- FXSYS_fabs(pDestMatrix->a) < 0.5f && FXSYS_fabs(pDestMatrix->d) < 0.5f) {
- int dest_width = result_rect.Width();
- int dest_height = result_rect.Height();
- result_clip.Offset(-result_rect.left, -result_rect.top);
- result_clip = _FXDIB_SwapClipBox(result_clip, dest_width, dest_height, pDestMatrix->c > 0, pDestMatrix->b < 0);
- m_Stretcher.Start(&m_Storer, pSrc, dest_height, dest_width, result_clip, flags);
- m_Status = 1;
- return TRUE;
- }
- if (FXSYS_fabs(pDestMatrix->b) < FIX16_005 && FXSYS_fabs(pDestMatrix->c) < FIX16_005) {
- int dest_width = pDestMatrix->a > 0 ? (int)FXSYS_ceil(pDestMatrix->a) : (int)FXSYS_floor(pDestMatrix->a);
- int dest_height = pDestMatrix->d > 0 ? (int) - FXSYS_ceil(pDestMatrix->d) : (int) - FXSYS_floor(pDestMatrix->d);
- result_clip.Offset(-result_rect.left, -result_rect.top);
- m_Stretcher.Start(&m_Storer, pSrc, dest_width, dest_height, result_clip, flags);
- m_Status = 2;
- return TRUE;
- }
- int stretch_width = (int)FXSYS_ceil(FXSYS_sqrt2(pDestMatrix->a, pDestMatrix->b));
- int stretch_height = (int)FXSYS_ceil(FXSYS_sqrt2(pDestMatrix->c, pDestMatrix->d));
- CFX_AffineMatrix stretch2dest(1.0f, 0.0f, 0.0f, -1.0f, 0.0f, (FX_FLOAT)(stretch_height));
- stretch2dest.Concat(pDestMatrix->a / stretch_width, pDestMatrix->b / stretch_width,
- pDestMatrix->c / stretch_height, pDestMatrix->d / stretch_height, pDestMatrix->e, pDestMatrix->f);
- m_dest2stretch.SetReverse(stretch2dest);
- CFX_FloatRect clip_rect_f(result_clip);
- clip_rect_f.Transform(&m_dest2stretch);
- m_StretchClip = clip_rect_f.GetOutterRect();
- m_StretchClip.Intersect(0, 0, stretch_width, stretch_height);
- m_Stretcher.Start(&m_Storer, pSrc, stretch_width, stretch_height, m_StretchClip, flags);
- m_Status = 3;
- return TRUE;
-}
-FX_BYTE _bilinear_interpol(FX_LPCBYTE buf, int row_offset_l, int row_offset_r,
- int src_col_l, int src_col_r, int res_x, int res_y,
- int bpp, int c_offset)
-{
- int i_resx = 255 - res_x;
- int col_bpp_l = src_col_l * bpp;
- int col_bpp_r = src_col_r * bpp;
- FX_LPCBYTE buf_u = buf + row_offset_l + c_offset;
- FX_LPCBYTE buf_d = buf + row_offset_r + c_offset;
- FX_LPCBYTE src_pos0 = buf_u + col_bpp_l;
- FX_LPCBYTE src_pos1 = buf_u + col_bpp_r;
- FX_LPCBYTE src_pos2 = buf_d + col_bpp_l;
- FX_LPCBYTE src_pos3 = buf_d + col_bpp_r;
- FX_BYTE r_pos_0 = (*src_pos0 * i_resx + *src_pos1 * res_x) >> 8;
- FX_BYTE r_pos_1 = (*src_pos2 * i_resx + *src_pos3 * res_x) >> 8;
- return (r_pos_0 * (255 - res_y) + r_pos_1 * res_y) >> 8;
-}
-FX_BYTE _bicubic_interpol(FX_LPCBYTE buf, int pitch, int pos_pixel[], int u_w[], int v_w[], int res_x, int res_y,
- int bpp, int c_offset)
-{
- int s_result = 0;
- for (int i = 0; i < 4; i ++) {
- int a_result = 0;
- for (int j = 0; j < 4; j ++) {
- a_result += u_w[j] * (*(FX_BYTE*)(buf + pos_pixel[i + 4] * pitch + pos_pixel[j] * bpp + c_offset));
- }
- s_result += a_result * v_w[i];
- }
- s_result >>= 16;
- return (FX_BYTE)(s_result < 0 ? 0 : s_result > 255 ? 255 : s_result);
-}
-void _bicubic_get_pos_weight(int pos_pixel[], int u_w[], int v_w[], int src_col_l, int src_row_l,
- int res_x, int res_y, int stretch_width, int stretch_height)
-{
- pos_pixel[0] = src_col_l - 1;
- pos_pixel[1] = src_col_l;
- pos_pixel[2] = src_col_l + 1;
- pos_pixel[3] = src_col_l + 2;
- pos_pixel[4] = src_row_l - 1;
- pos_pixel[5] = src_row_l;
- pos_pixel[6] = src_row_l + 1;
- pos_pixel[7] = src_row_l + 2;
- for (int i = 0 ; i < 4; i ++) {
- if (pos_pixel[i] < 0) {
- pos_pixel[i] = 0;
- }
- if (pos_pixel[i] >= stretch_width) {
- pos_pixel[i] = stretch_width - 1;
- }
- if (pos_pixel[i + 4] < 0) {
- pos_pixel[i + 4] = 0;
- }
- if (pos_pixel[i + 4] >= stretch_height) {
- pos_pixel[i + 4] = stretch_height - 1;
- }
- }
- u_w[0] = SDP_Table[256 + res_x];
- u_w[1] = SDP_Table[res_x];
- u_w[2] = SDP_Table[256 - res_x];
- u_w[3] = SDP_Table[512 - res_x];
- v_w[0] = SDP_Table[256 + res_y];
- v_w[1] = SDP_Table[res_y];
- v_w[2] = SDP_Table[256 - res_y];
- v_w[3] = SDP_Table[512 - res_y];
-}
-FXDIB_Format _GetTransformedFormat(const CFX_DIBSource* pDrc)
-{
- FXDIB_Format format = pDrc->GetFormat();
- if (pDrc->IsAlphaMask()) {
- format = FXDIB_8bppMask;
- } else if (format >= 1025) {
- format = FXDIB_Cmyka;
- } else if (format <= 32 || format == FXDIB_Argb) {
- format = FXDIB_Argb;
- } else {
- format = FXDIB_Rgba;
- }
- return format;
-}
-FX_BOOL CFX_ImageTransformer::Continue(IFX_Pause* pPause)
-{
- if (m_Status == 1) {
- if (m_Stretcher.Continue(pPause)) {
- return TRUE;
- }
- if (m_Storer.GetBitmap()) {
- m_Storer.Replace(m_Storer.GetBitmap()->SwapXY(m_pMatrix->c > 0, m_pMatrix->b < 0));
- }
- return FALSE;
- } else if (m_Status == 2) {
- return m_Stretcher.Continue(pPause);
- } else if (m_Status != 3) {
- return FALSE;
- }
- if (m_Stretcher.Continue(pPause)) {
- return TRUE;
- }
- int stretch_width = m_StretchClip.Width();
- int stretch_height = m_StretchClip.Height();
- if (m_Storer.GetBitmap() == NULL) {
- return FALSE;
- }
- FX_LPCBYTE stretch_buf = m_Storer.GetBitmap()->GetBuffer();
- FX_LPCBYTE stretch_buf_mask = NULL;
- if (m_Storer.GetBitmap()->m_pAlphaMask) {
- stretch_buf_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetBuffer();
- }
- int stretch_pitch = m_Storer.GetBitmap()->GetPitch();
- CFX_DIBitmap* pTransformed = FX_NEW CFX_DIBitmap;
- if (!pTransformed) {
- return FALSE;
- }
- FXDIB_Format transformF = _GetTransformedFormat(m_Stretcher.m_pSource);
- if (!pTransformed->Create(m_ResultWidth, m_ResultHeight, transformF)) {
- delete pTransformed;
- return FALSE;
- }
- pTransformed->Clear(0);
- if (pTransformed->m_pAlphaMask) {
- pTransformed->m_pAlphaMask->Clear(0);
- }
- CFX_AffineMatrix result2stretch(1.0f, 0.0f, 0.0f, 1.0f, (FX_FLOAT)(m_ResultLeft), (FX_FLOAT)(m_ResultTop));
- result2stretch.Concat(m_dest2stretch);
- result2stretch.TranslateI(-m_StretchClip.left, -m_StretchClip.top);
- if (stretch_buf_mask == NULL && pTransformed->m_pAlphaMask) {
- 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)) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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--;
- }
- 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--;
- }
- int row_offset_l = src_row_l * stretch_pitch_mask;
- int row_offset_r = src_row_r * stretch_pitch_mask;
- *dest_pos_mask = _bilinear_interpol(stretch_buf_mask, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0);
- }
- dest_pos_mask++;
- }
- }
- } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- int pos_pixel[8];
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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) {
- 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--;
- }
- _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 = _bicubic_interpol(stretch_buf_mask, stretch_pitch_mask, pos_pixel, u_w, v_w, res_x, res_y, 1, 0);
- }
- dest_pos_mask++;
- }
- }
- } else {
- CPDF_FixedMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col, src_row;
- 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 --;
- }
- *dest_pos_mask = stretch_buf_mask[src_row * stretch_pitch_mask + src_col];
- }
- dest_pos_mask++;
- }
- }
- }
- }
- if (m_Storer.GetBitmap()->IsAlphaMask()) {
- if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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--;
- }
- 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--;
- }
- int row_offset_l = src_row_l * stretch_pitch;
- int row_offset_r = src_row_r * stretch_pitch;
- *dest_scan = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0);
- }
- dest_scan ++;
- }
- }
- } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- int pos_pixel[8];
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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) {
- 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--;
- }
- _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, u_w, v_w, res_x, res_y, 1, 0);
- }
- dest_scan ++;
- }
- }
- } else {
- CPDF_FixedMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col, src_row;
- 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 --;
- }
- FX_LPCBYTE src_pixel = stretch_buf + stretch_pitch * src_row + src_col;
- *dest_scan = *src_pixel;
- }
- dest_scan ++;
- }
- }
- }
- } else {
- int Bpp = m_Storer.GetBitmap()->GetBPP() / 8;
- int destBpp = pTransformed->GetBPP() / 8;
- if (Bpp == 1) {
- FX_BOOL bHasAlpha = m_Storer.GetBitmap()->HasAlpha();
- FX_DWORD argb[256];
- FX_ARGB* pPal = m_Storer.GetBitmap()->GetPalette();
- if (pPal) {
- for (int i = 0; i < 256; i ++) {
- argb[i] = pPal[i];
- }
- } else {
- if (m_Storer.GetBitmap()->IsCmykImage())
- for (int i = 0; i < 256; i ++) {
- argb[i] = 255 - i;
- }
- else
- for (int i = 0; i < 256; i ++) {
- argb[i] = 0xff000000 | (i * 0x010101);
- }
- }
- if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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--;
- }
- 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--;
- }
- int row_offset_l = src_row_l * stretch_pitch;
- int row_offset_r = src_row_r * stretch_pitch;
- FX_DWORD r_bgra_cmyk = argb[_bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0)];
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24);
- dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16);
- dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8);
- } else {
- *(FX_DWORD*)dest_pos = r_bgra_cmyk;
- }
- }
- dest_pos += destBpp;
- }
- }
- } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- int pos_pixel[8];
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y;
- 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) {
- 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--;
- }
- _bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height);
- FX_DWORD r_bgra_cmyk = argb[_bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, 1, 0)];
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24);
- dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16);
- dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8);
- } else {
- *(FX_DWORD*)dest_pos = r_bgra_cmyk;
- }
- }
- dest_pos += destBpp;
- }
- }
- } else {
- CPDF_FixedMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col, src_row;
- 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 --;
- }
- FX_DWORD r_bgra_cmyk = argb[stretch_buf[src_row * stretch_pitch + src_col]];
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24);
- dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16);
- dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8);
- } else {
- *(FX_DWORD*)dest_pos = r_bgra_cmyk;
- }
- }
- dest_pos += destBpp;
- }
- }
- }
- } else {
- FX_BOOL bHasAlpha = m_Storer.GetBitmap()->HasAlpha();
- int destBpp = pTransformed->GetBPP() / 8;
- if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y, 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--;
- }
- 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--;
- }
- int row_offset_l = src_row_l * stretch_pitch;
- int row_offset_r = src_row_r * stretch_pitch;
- FX_BYTE r_pos_red_y_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 2);
- FX_BYTE r_pos_green_m_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 1);
- FX_BYTE r_pos_blue_c_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 0);
- if (bHasAlpha) {
- if (transformF != FXDIB_Argb) {
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = r_pos_blue_c_r;
- dest_pos[1] = r_pos_green_m_r;
- dest_pos[2] = r_pos_red_y_r;
- } else {
- r_pos_k_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r));
- }
- } else {
- FX_BYTE r_pos_a_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_a_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r));
- }
- } else {
- r_pos_k_r = 0xff;
- if (transformF == FXDIB_Cmyka) {
- r_pos_k_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r));
- } else {
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_k_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r));
- }
- }
- }
- dest_pos += destBpp;
- }
- }
- } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) {
- CFX_BilinearMatrix result2stretch_fix(result2stretch, 8);
- int pos_pixel[8];
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col_l, src_row_l, res_x, res_y, 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) {
- 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--;
- }
- _bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height);
- FX_BYTE r_pos_red_y_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 2);
- FX_BYTE r_pos_green_m_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 1);
- FX_BYTE r_pos_blue_c_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 0);
- if (bHasAlpha) {
- if (transformF != FXDIB_Argb) {
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = r_pos_blue_c_r;
- dest_pos[1] = r_pos_green_m_r;
- dest_pos[2] = r_pos_red_y_r;
- } else {
- r_pos_k_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r));
- }
- } else {
- FX_BYTE r_pos_a_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_a_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r));
- }
- } else {
- r_pos_k_r = 0xff;
- if (transformF == FXDIB_Cmyka) {
- r_pos_k_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3);
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r));
- } else {
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_k_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r));
- }
- }
- }
- dest_pos += destBpp;
- }
- }
- } else {
- CPDF_FixedMatrix result2stretch_fix(result2stretch, 8);
- for (int row = 0; row < m_ResultHeight; row ++) {
- FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row);
- for (int col = 0; col < m_ResultWidth; col ++) {
- int src_col, src_row;
- 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 --;
- }
- FX_LPCBYTE src_pos = stretch_buf + src_row * stretch_pitch + src_col * Bpp;
- if (bHasAlpha) {
- if (transformF != FXDIB_Argb) {
- if (transformF == FXDIB_Rgba) {
- dest_pos[0] = src_pos[0];
- dest_pos[1] = src_pos[1];
- dest_pos[2] = src_pos[2];
- } else {
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(src_pos[0], src_pos[1], src_pos[2], src_pos[3]));
- }
- } else {
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(src_pos[3], src_pos[2], src_pos[1], src_pos[0]));
- }
- } else {
- if (transformF == FXDIB_Cmyka) {
- *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(src_pos[0], src_pos[1], src_pos[2], src_pos[3]));
- } else {
- *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(0xff, src_pos[2], src_pos[1], src_pos[0]));
- }
- }
- }
- dest_pos += destBpp;
- }
- }
- }
- }
- }
- m_Storer.Replace(pTransformed);
- return FALSE;
-}
+// Copyright 2014 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com + +#include "../../../include/fxge/fx_dib.h" +#include "dib_int.h" +int SDP_Table[513] = { + 256, 256, 256, 256, 256, 256, 256, 256, 256, 255, 255, 255, 255, 255, 255, 254, 254, 254, 254, + 253, 253, 253, 252, 252, 252, 251, 251, 251, 250, 250, 249, 249, 249, 248, 248, 247, 247, 246, + 246, 245, 244, 244, 243, 243, 242, 242, 241, 240, 240, 239, 238, 238, 237, 236, 236, 235, 234, + 233, 233, 232, 231, 230, 230, 229, 228, 227, 226, 226, 225, 224, 223, 222, 221, 220, 219, 218, + 218, 217, 216, 215, 214, 213, 212, 211, 210, 209, 208, 207, 206, 205, 204, 203, 202, 201, 200, + 199, 198, 196, 195, 194, 193, 192, 191, 190, 189, 188, 186, 185, 184, 183, 182, 181, 179, 178, + 177, 176, 175, 173, 172, 171, 170, 169, 167, 166, 165, 164, 162, 161, 160, 159, 157, 156, 155, + 154, 152, 151, 150, 149, 147, 146, 145, 143, 142, 141, 140, 138, 137, 136, 134, 133, 132, 130, + 129, 128, 126, 125, 124, 122, 121, 120, 119, 117, 116, 115, 113, 112, 111, 109, 108, 107, 105, + 104, 103, 101, 100, 99, 97, 96, 95, 93, 92, 91, 89, 88, 87, 85, 84, 83, 81, 80, 79, 77, 76, 75, + 73, 72, 71, 69, 68, 67, 66, 64, 63, 62, 60, 59, 58, 57, 55, 54, 53, 52, 50, 49, 48, 47, 45, 44, + 43, 42, 40, 39, 38, 37, 36, 34, 33, 32, 31, 30, 28, 27, 26, 25, 24, 23, 21, 20, 19, 18, 17, 16, + 15, 14, 13, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0, 0, -1, -2, -3, -4, -5, -6, -7, -7, -8, -9, -10, + -11, -12, -12, -13, -14, -15, -15, -16, -17, -17, -18, -19, -19, -20, -21, -21, -22, -22, -23, -24, + -24, -25, -25, -26, -26, -27, -27, -27, -28, -28, -29, -29, -30, -30, -30, -31, -31, -31, -32, -32, + -32, -33, -33, -33, -33, -34, -34, -34, -34, -35, -35, -35, -35, -35, -36, -36, -36, -36, -36, -36, + -36, -36, -36, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, -37, + -37, -37, -37, -37, -36, -36, -36, -36, -36, -36, -36, -36, -36, -35, -35, -35, -35, -35, -35, -34, + -34, -34, -34, -34, -33, -33, -33, -33, -33, -32, -32, -32, -32, -31, -31, -31, -31, -30, -30, -30, + -30, -29, -29, -29, -29, -28, -28, -28, -27, -27, -27, -27, -26, -26, -26, -25, -25, -25, -24, -24, + -24, -23, -23, -23, -22, -22, -22, -22, -21, -21, -21, -20, -20, -20, -19, -19, -19, -18, -18, -18, + -17, -17, -17, -16, -16, -16, -15, -15, -15, -14, -14, -14, -13, -13, -13, -12, -12, -12, -11, -11, + -11, -10, -10, -10, -9, -9, -9, -9, -8, -8, -8, -7, -7, -7, -7, -6, -6, -6, -6, -5, -5, -5, -5, -4, + -4, -4, -4, -3, -3, -3, -3, -3, -2, -2, -2, -2, -2, -1, -1, -1, -1, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0, + 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, +}; +class CFX_BilinearMatrix : public CPDF_FixedMatrix +{ +public: + CFX_BilinearMatrix(const CFX_AffineMatrix& src, int bits): CPDF_FixedMatrix(src, bits) + {} + inline void Transform(int x, int y, int& x1, int& y1, int&res_x, int&res_y) + { + x1 = a * x + c * y + e + base / 2; + y1 = b * x + d * y + f + base / 2; + res_x = x1 % base; + res_y = y1 % base; + if (res_x < 0 && res_x > -base) { + res_x = base + res_x; + } + if (res_y < 0 && res_x > -base) { + res_y = base + res_y; + } + x1 /= base; + y1 /= base; + } +}; +CFX_DIBitmap* CFX_DIBSource::SwapXY(FX_BOOL bXFlip, FX_BOOL bYFlip, const FX_RECT* pDestClip) const +{ + FX_RECT dest_clip(0, 0, m_Height, m_Width); + if (pDestClip) { + dest_clip.Intersect(*pDestClip); + } + if (dest_clip.IsEmpty()) { + return NULL; + } + CFX_DIBitmap* pTransBitmap = FX_NEW CFX_DIBitmap; + if (!pTransBitmap) { + return NULL; + } + int result_height = dest_clip.Height(), result_width = dest_clip.Width(); + if (!pTransBitmap->Create(result_width, result_height, GetFormat())) { + delete pTransBitmap; + return NULL; + } + pTransBitmap->CopyPalette(m_pPalette); + int src_pitch = m_Pitch; + int dest_pitch = pTransBitmap->GetPitch(); + FX_LPBYTE dest_buf = pTransBitmap->GetBuffer(); + int row_start = bXFlip ? m_Height - dest_clip.right : dest_clip.left; + int row_end = bXFlip ? m_Height - dest_clip.left : dest_clip.right; + int col_start = bYFlip ? m_Width - dest_clip.bottom : dest_clip.top; + int col_end = bYFlip ? m_Width - dest_clip.top : dest_clip.bottom; + if (GetBPP() == 1) { + FXSYS_memset8(dest_buf, 0xff, dest_pitch * result_height); + for (int row = row_start; row < row_end; row ++) { + FX_LPCBYTE src_scan = GetScanline(row); + int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left; + FX_LPBYTE dest_scan = dest_buf; + if (bYFlip) { + dest_scan += (result_height - 1) * dest_pitch; + } + int dest_step = bYFlip ? -dest_pitch : dest_pitch; + for (int col = col_start; col < col_end; col ++) { + if (!(src_scan[col / 8] & (1 << (7 - col % 8)))) { + dest_scan[dest_col / 8] &= ~(1 << (7 - dest_col % 8)); + } + dest_scan += dest_step; + } + } + } else { + int nBytes = GetBPP() / 8; + int dest_step = bYFlip ? -dest_pitch : dest_pitch; + if (nBytes == 3) { + dest_step -= 2; + } + for (int row = row_start; row < row_end; row ++) { + int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left; + FX_LPBYTE dest_scan = dest_buf + dest_col * nBytes; + if (bYFlip) { + dest_scan += (result_height - 1) * dest_pitch; + } + if (nBytes == 4) { + FX_DWORD* src_scan = (FX_DWORD*)GetScanline(row) + col_start; + for (int col = col_start; col < col_end; col ++) { + *(FX_DWORD*)dest_scan = *src_scan++; + dest_scan += dest_step; + } + } else { + FX_LPCBYTE src_scan = GetScanline(row) + col_start * nBytes; + if (nBytes == 1) + for (int col = col_start; col < col_end; col ++) { + *dest_scan = *src_scan++; + dest_scan += dest_step; + } + else + for (int col = col_start; col < col_end; col ++) { + *dest_scan++ = *src_scan++; + *dest_scan++ = *src_scan++; + *dest_scan = *src_scan++; + dest_scan += dest_step; + } + } + } + } + if (m_pAlphaMask) { + src_pitch = m_pAlphaMask->m_Pitch; + dest_pitch = pTransBitmap->m_pAlphaMask->GetPitch(); + dest_buf = pTransBitmap->m_pAlphaMask->GetBuffer(); + int dest_step = bYFlip ? -dest_pitch : dest_pitch; + for (int row = row_start; row < row_end; row ++) { + int dest_col = (bXFlip ? dest_clip.right - (row - row_start) - 1 : row) - dest_clip.left; + FX_LPBYTE dest_scan = dest_buf + dest_col; + if (bYFlip) { + dest_scan += (result_height - 1) * dest_pitch; + } + FX_LPCBYTE src_scan = m_pAlphaMask->GetScanline(row) + col_start; + for (int col = col_start; col < col_end; col ++) { + *dest_scan = *src_scan++; + dest_scan += dest_step; + } + } + } + return pTransBitmap; +} +#define FIX16_005 0.05f +FX_RECT _FXDIB_SwapClipBox(FX_RECT& clip, int width, int height, FX_BOOL bFlipX, FX_BOOL bFlipY) +{ + FX_RECT rect; + if (bFlipY) { + rect.left = height - clip.top; + rect.right = height - clip.bottom; + } else { + rect.left = clip.top; + rect.right = clip.bottom; + } + if (bFlipX) { + rect.top = width - clip.left; + rect.bottom = width - clip.right; + } else { + rect.top = clip.left; + rect.bottom = clip.right; + } + rect.Normalize(); + return rect; +} +CFX_DIBitmap* CFX_DIBSource::TransformTo(const CFX_AffineMatrix* pDestMatrix, int& result_left, int& result_top, + FX_DWORD flags, const FX_RECT* pDestClip) const +{ + CFX_ImageTransformer transformer; + transformer.Start(this, pDestMatrix, flags, pDestClip); + transformer.Continue(NULL); + result_left = transformer.m_ResultLeft; + result_top = transformer.m_ResultTop; + CFX_DIBitmap* pTransformed = transformer.m_Storer.Detach(); + return pTransformed; +} +CFX_DIBitmap* CFX_DIBSource::StretchTo(int dest_width, int dest_height, FX_DWORD flags, const FX_RECT* pClip) const +{ + FX_RECT clip_rect(0, 0, FXSYS_abs(dest_width), FXSYS_abs(dest_height)); + if (pClip) { + clip_rect.Intersect(*pClip); + } + if (clip_rect.IsEmpty()) { + return NULL; + } + if (dest_width == m_Width && dest_height == m_Height) { + return Clone(&clip_rect); + } + CFX_ImageStretcher stretcher; + CFX_BitmapStorer storer; + if (stretcher.Start(&storer, this, dest_width, dest_height, clip_rect, flags)) { + stretcher.Continue(NULL); + } + return storer.Detach(); +} +CFX_ImageTransformer::CFX_ImageTransformer() +{ + m_Status = 0; + m_pMatrix = NULL; +} +CFX_ImageTransformer::~CFX_ImageTransformer() +{ +} +FX_BOOL CFX_ImageTransformer::Start(const CFX_DIBSource* pSrc, const CFX_AffineMatrix* pDestMatrix, int flags, const FX_RECT* pDestClip) +{ + m_pMatrix = (CFX_AffineMatrix*)pDestMatrix; + CFX_FloatRect unit_rect = pDestMatrix->GetUnitRect(); + FX_RECT result_rect = unit_rect.GetClosestRect(); + FX_RECT result_clip = result_rect; + if (pDestClip) { + result_clip.Intersect(*pDestClip); + } + if (result_clip.IsEmpty()) { + return FALSE; + } + m_ResultLeft = result_clip.left; + m_ResultTop = result_clip.top; + m_ResultWidth = result_clip.Width(); + m_ResultHeight = result_clip.Height(); + m_Flags = flags; + if (FXSYS_fabs(pDestMatrix->a) < FXSYS_fabs(pDestMatrix->b) / 20 && + FXSYS_fabs(pDestMatrix->d) < FXSYS_fabs(pDestMatrix->c) / 20 && + FXSYS_fabs(pDestMatrix->a) < 0.5f && FXSYS_fabs(pDestMatrix->d) < 0.5f) { + int dest_width = result_rect.Width(); + int dest_height = result_rect.Height(); + result_clip.Offset(-result_rect.left, -result_rect.top); + result_clip = _FXDIB_SwapClipBox(result_clip, dest_width, dest_height, pDestMatrix->c > 0, pDestMatrix->b < 0); + m_Stretcher.Start(&m_Storer, pSrc, dest_height, dest_width, result_clip, flags); + m_Status = 1; + return TRUE; + } + if (FXSYS_fabs(pDestMatrix->b) < FIX16_005 && FXSYS_fabs(pDestMatrix->c) < FIX16_005) { + int dest_width = pDestMatrix->a > 0 ? (int)FXSYS_ceil(pDestMatrix->a) : (int)FXSYS_floor(pDestMatrix->a); + int dest_height = pDestMatrix->d > 0 ? (int) - FXSYS_ceil(pDestMatrix->d) : (int) - FXSYS_floor(pDestMatrix->d); + result_clip.Offset(-result_rect.left, -result_rect.top); + m_Stretcher.Start(&m_Storer, pSrc, dest_width, dest_height, result_clip, flags); + m_Status = 2; + return TRUE; + } + int stretch_width = (int)FXSYS_ceil(FXSYS_sqrt2(pDestMatrix->a, pDestMatrix->b)); + int stretch_height = (int)FXSYS_ceil(FXSYS_sqrt2(pDestMatrix->c, pDestMatrix->d)); + CFX_AffineMatrix stretch2dest(1.0f, 0.0f, 0.0f, -1.0f, 0.0f, (FX_FLOAT)(stretch_height)); + stretch2dest.Concat(pDestMatrix->a / stretch_width, pDestMatrix->b / stretch_width, + pDestMatrix->c / stretch_height, pDestMatrix->d / stretch_height, pDestMatrix->e, pDestMatrix->f); + m_dest2stretch.SetReverse(stretch2dest); + CFX_FloatRect clip_rect_f(result_clip); + clip_rect_f.Transform(&m_dest2stretch); + m_StretchClip = clip_rect_f.GetOutterRect(); + m_StretchClip.Intersect(0, 0, stretch_width, stretch_height); + m_Stretcher.Start(&m_Storer, pSrc, stretch_width, stretch_height, m_StretchClip, flags); + m_Status = 3; + return TRUE; +} +FX_BYTE _bilinear_interpol(FX_LPCBYTE buf, int row_offset_l, int row_offset_r, + int src_col_l, int src_col_r, int res_x, int res_y, + int bpp, int c_offset) +{ + int i_resx = 255 - res_x; + int col_bpp_l = src_col_l * bpp; + int col_bpp_r = src_col_r * bpp; + FX_LPCBYTE buf_u = buf + row_offset_l + c_offset; + FX_LPCBYTE buf_d = buf + row_offset_r + c_offset; + FX_LPCBYTE src_pos0 = buf_u + col_bpp_l; + FX_LPCBYTE src_pos1 = buf_u + col_bpp_r; + FX_LPCBYTE src_pos2 = buf_d + col_bpp_l; + FX_LPCBYTE src_pos3 = buf_d + col_bpp_r; + FX_BYTE r_pos_0 = (*src_pos0 * i_resx + *src_pos1 * res_x) >> 8; + FX_BYTE r_pos_1 = (*src_pos2 * i_resx + *src_pos3 * res_x) >> 8; + return (r_pos_0 * (255 - res_y) + r_pos_1 * res_y) >> 8; +} +FX_BYTE _bicubic_interpol(FX_LPCBYTE buf, int pitch, int pos_pixel[], int u_w[], int v_w[], int res_x, int res_y, + int bpp, int c_offset) +{ + int s_result = 0; + for (int i = 0; i < 4; i ++) { + int a_result = 0; + for (int j = 0; j < 4; j ++) { + a_result += u_w[j] * (*(FX_BYTE*)(buf + pos_pixel[i + 4] * pitch + pos_pixel[j] * bpp + c_offset)); + } + s_result += a_result * v_w[i]; + } + s_result >>= 16; + return (FX_BYTE)(s_result < 0 ? 0 : s_result > 255 ? 255 : s_result); +} +void _bicubic_get_pos_weight(int pos_pixel[], int u_w[], int v_w[], int src_col_l, int src_row_l, + int res_x, int res_y, int stretch_width, int stretch_height) +{ + pos_pixel[0] = src_col_l - 1; + pos_pixel[1] = src_col_l; + pos_pixel[2] = src_col_l + 1; + pos_pixel[3] = src_col_l + 2; + pos_pixel[4] = src_row_l - 1; + pos_pixel[5] = src_row_l; + pos_pixel[6] = src_row_l + 1; + pos_pixel[7] = src_row_l + 2; + for (int i = 0 ; i < 4; i ++) { + if (pos_pixel[i] < 0) { + pos_pixel[i] = 0; + } + if (pos_pixel[i] >= stretch_width) { + pos_pixel[i] = stretch_width - 1; + } + if (pos_pixel[i + 4] < 0) { + pos_pixel[i + 4] = 0; + } + if (pos_pixel[i + 4] >= stretch_height) { + pos_pixel[i + 4] = stretch_height - 1; + } + } + u_w[0] = SDP_Table[256 + res_x]; + u_w[1] = SDP_Table[res_x]; + u_w[2] = SDP_Table[256 - res_x]; + u_w[3] = SDP_Table[512 - res_x]; + v_w[0] = SDP_Table[256 + res_y]; + v_w[1] = SDP_Table[res_y]; + v_w[2] = SDP_Table[256 - res_y]; + v_w[3] = SDP_Table[512 - res_y]; +} +FXDIB_Format _GetTransformedFormat(const CFX_DIBSource* pDrc) +{ + FXDIB_Format format = pDrc->GetFormat(); + if (pDrc->IsAlphaMask()) { + format = FXDIB_8bppMask; + } else if (format >= 1025) { + format = FXDIB_Cmyka; + } else if (format <= 32 || format == FXDIB_Argb) { + format = FXDIB_Argb; + } else { + format = FXDIB_Rgba; + } + return format; +} +FX_BOOL CFX_ImageTransformer::Continue(IFX_Pause* pPause) +{ + if (m_Status == 1) { + if (m_Stretcher.Continue(pPause)) { + return TRUE; + } + if (m_Storer.GetBitmap()) { + m_Storer.Replace(m_Storer.GetBitmap()->SwapXY(m_pMatrix->c > 0, m_pMatrix->b < 0)); + } + return FALSE; + } else if (m_Status == 2) { + return m_Stretcher.Continue(pPause); + } else if (m_Status != 3) { + return FALSE; + } + if (m_Stretcher.Continue(pPause)) { + return TRUE; + } + int stretch_width = m_StretchClip.Width(); + int stretch_height = m_StretchClip.Height(); + if (m_Storer.GetBitmap() == NULL) { + return FALSE; + } + FX_LPCBYTE stretch_buf = m_Storer.GetBitmap()->GetBuffer(); + FX_LPCBYTE stretch_buf_mask = NULL; + if (m_Storer.GetBitmap()->m_pAlphaMask) { + stretch_buf_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetBuffer(); + } + int stretch_pitch = m_Storer.GetBitmap()->GetPitch(); + CFX_DIBitmap* pTransformed = FX_NEW CFX_DIBitmap; + if (!pTransformed) { + return FALSE; + } + FXDIB_Format transformF = _GetTransformedFormat(m_Stretcher.m_pSource); + if (!pTransformed->Create(m_ResultWidth, m_ResultHeight, transformF)) { + delete pTransformed; + return FALSE; + } + pTransformed->Clear(0); + if (pTransformed->m_pAlphaMask) { + pTransformed->m_pAlphaMask->Clear(0); + } + CFX_AffineMatrix result2stretch(1.0f, 0.0f, 0.0f, 1.0f, (FX_FLOAT)(m_ResultLeft), (FX_FLOAT)(m_ResultTop)); + result2stretch.Concat(m_dest2stretch); + result2stretch.TranslateI(-m_StretchClip.left, -m_StretchClip.top); + if (stretch_buf_mask == NULL && pTransformed->m_pAlphaMask) { + 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)) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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--; + } + 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--; + } + int row_offset_l = src_row_l * stretch_pitch_mask; + int row_offset_r = src_row_r * stretch_pitch_mask; + *dest_pos_mask = _bilinear_interpol(stretch_buf_mask, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0); + } + dest_pos_mask++; + } + } + } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + int pos_pixel[8]; + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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) { + 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--; + } + _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 = _bicubic_interpol(stretch_buf_mask, stretch_pitch_mask, pos_pixel, u_w, v_w, res_x, res_y, 1, 0); + } + dest_pos_mask++; + } + } + } else { + CPDF_FixedMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos_mask = (FX_BYTE*)pTransformed->m_pAlphaMask->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col, src_row; + 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 --; + } + *dest_pos_mask = stretch_buf_mask[src_row * stretch_pitch_mask + src_col]; + } + dest_pos_mask++; + } + } + } + } + if (m_Storer.GetBitmap()->IsAlphaMask()) { + if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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--; + } + 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--; + } + int row_offset_l = src_row_l * stretch_pitch; + int row_offset_r = src_row_r * stretch_pitch; + *dest_scan = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0); + } + dest_scan ++; + } + } + } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + int pos_pixel[8]; + for (int row = 0; row < m_ResultHeight; row ++) { + FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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) { + 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--; + } + _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, u_w, v_w, res_x, res_y, 1, 0); + } + dest_scan ++; + } + } + } else { + CPDF_FixedMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_LPBYTE dest_scan = (FX_LPBYTE)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col, src_row; + 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 --; + } + FX_LPCBYTE src_pixel = stretch_buf + stretch_pitch * src_row + src_col; + *dest_scan = *src_pixel; + } + dest_scan ++; + } + } + } + } else { + int Bpp = m_Storer.GetBitmap()->GetBPP() / 8; + int destBpp = pTransformed->GetBPP() / 8; + if (Bpp == 1) { + FX_BOOL bHasAlpha = m_Storer.GetBitmap()->HasAlpha(); + FX_DWORD argb[256]; + FX_ARGB* pPal = m_Storer.GetBitmap()->GetPalette(); + if (pPal) { + for (int i = 0; i < 256; i ++) { + argb[i] = pPal[i]; + } + } else { + if (m_Storer.GetBitmap()->IsCmykImage()) + for (int i = 0; i < 256; i ++) { + argb[i] = 255 - i; + } + else + for (int i = 0; i < 256; i ++) { + argb[i] = 0xff000000 | (i * 0x010101); + } + } + if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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--; + } + 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--; + } + int row_offset_l = src_row_l * stretch_pitch; + int row_offset_r = src_row_r * stretch_pitch; + FX_DWORD r_bgra_cmyk = argb[_bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, 1, 0)]; + if (transformF == FXDIB_Rgba) { + dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24); + dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16); + dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8); + } else { + *(FX_DWORD*)dest_pos = r_bgra_cmyk; + } + } + dest_pos += destBpp; + } + } + } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + int pos_pixel[8]; + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y; + 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) { + 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--; + } + _bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); + FX_DWORD r_bgra_cmyk = argb[_bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, 1, 0)]; + if (transformF == FXDIB_Rgba) { + dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24); + dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16); + dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8); + } else { + *(FX_DWORD*)dest_pos = r_bgra_cmyk; + } + } + dest_pos += destBpp; + } + } + } else { + CPDF_FixedMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col, src_row; + 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 --; + } + FX_DWORD r_bgra_cmyk = argb[stretch_buf[src_row * stretch_pitch + src_col]]; + if (transformF == FXDIB_Rgba) { + dest_pos[0] = (FX_BYTE)(r_bgra_cmyk >> 24); + dest_pos[1] = (FX_BYTE)(r_bgra_cmyk >> 16); + dest_pos[2] = (FX_BYTE)(r_bgra_cmyk >> 8); + } else { + *(FX_DWORD*)dest_pos = r_bgra_cmyk; + } + } + dest_pos += destBpp; + } + } + } + } else { + FX_BOOL bHasAlpha = m_Storer.GetBitmap()->HasAlpha(); + int destBpp = pTransformed->GetBPP() / 8; + if (!(m_Flags & FXDIB_DOWNSAMPLE) && !(m_Flags & FXDIB_BICUBIC_INTERPOL)) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y, 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--; + } + 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--; + } + int row_offset_l = src_row_l * stretch_pitch; + int row_offset_r = src_row_r * stretch_pitch; + FX_BYTE r_pos_red_y_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 2); + FX_BYTE r_pos_green_m_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 1); + FX_BYTE r_pos_blue_c_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 0); + if (bHasAlpha) { + if (transformF != FXDIB_Argb) { + if (transformF == FXDIB_Rgba) { + dest_pos[0] = r_pos_blue_c_r; + dest_pos[1] = r_pos_green_m_r; + dest_pos[2] = r_pos_red_y_r; + } else { + r_pos_k_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r)); + } + } else { + FX_BYTE r_pos_a_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_a_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r)); + } + } else { + r_pos_k_r = 0xff; + if (transformF == FXDIB_Cmyka) { + r_pos_k_r = _bilinear_interpol(stretch_buf, row_offset_l, row_offset_r, src_col_l, src_col_r, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r)); + } else { + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_k_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r)); + } + } + } + dest_pos += destBpp; + } + } + } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { + CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); + int pos_pixel[8]; + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col_l, src_row_l, res_x, res_y, 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) { + 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--; + } + _bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, res_x, res_y, stretch_width, stretch_height); + FX_BYTE r_pos_red_y_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 2); + FX_BYTE r_pos_green_m_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 1); + FX_BYTE r_pos_blue_c_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 0); + if (bHasAlpha) { + if (transformF != FXDIB_Argb) { + if (transformF == FXDIB_Rgba) { + dest_pos[0] = r_pos_blue_c_r; + dest_pos[1] = r_pos_green_m_r; + dest_pos[2] = r_pos_red_y_r; + } else { + r_pos_k_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r)); + } + } else { + FX_BYTE r_pos_a_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_a_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r)); + } + } else { + r_pos_k_r = 0xff; + if (transformF == FXDIB_Cmyka) { + r_pos_k_r = _bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, v_w, res_x, res_y, Bpp, 3); + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(r_pos_blue_c_r, r_pos_green_m_r, r_pos_red_y_r, r_pos_k_r)); + } else { + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(r_pos_k_r, r_pos_red_y_r, r_pos_green_m_r, r_pos_blue_c_r)); + } + } + } + dest_pos += destBpp; + } + } + } else { + CPDF_FixedMatrix result2stretch_fix(result2stretch, 8); + for (int row = 0; row < m_ResultHeight; row ++) { + FX_BYTE* dest_pos = (FX_BYTE*)pTransformed->GetScanline(row); + for (int col = 0; col < m_ResultWidth; col ++) { + int src_col, src_row; + 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 --; + } + FX_LPCBYTE src_pos = stretch_buf + src_row * stretch_pitch + src_col * Bpp; + if (bHasAlpha) { + if (transformF != FXDIB_Argb) { + if (transformF == FXDIB_Rgba) { + dest_pos[0] = src_pos[0]; + dest_pos[1] = src_pos[1]; + dest_pos[2] = src_pos[2]; + } else { + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(src_pos[0], src_pos[1], src_pos[2], src_pos[3])); + } + } else { + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(src_pos[3], src_pos[2], src_pos[1], src_pos[0])); + } + } else { + if (transformF == FXDIB_Cmyka) { + *(FX_DWORD*)dest_pos = FXCMYK_TODIB(CmykEncode(src_pos[0], src_pos[1], src_pos[2], src_pos[3])); + } else { + *(FX_DWORD*)dest_pos = FXARGB_TODIB(FXARGB_MAKE(0xff, src_pos[2], src_pos[1], src_pos[0])); + } + } + } + dest_pos += destBpp; + } + } + } + } + } + m_Storer.Replace(pTransformed); + return FALSE; +} |