// 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; | |
} |