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author | Nicolas Pena <npm@chromium.org> | 2017-03-31 15:39:44 -0400 |
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committer | Chromium commit bot <commit-bot@chromium.org> | 2017-03-31 20:16:52 +0000 |
commit | bdbb0bd92bfca52e574106c4ce5f93d9d34d3373 (patch) | |
tree | 9fa4af5211b7bc655d73d7410af36a3e14e3cbb6 /core/fxge/dib/fx_dib_transform.cpp | |
parent | eb39cdb2efbc66e4566ba1f150cab7983362e13f (diff) | |
download | pdfium-bdbb0bd92bfca52e574106c4ce5f93d9d34d3373.tar.xz |
Split fx_dib part 3
Moved CFX_ImageRenderer, CFX_ImageTransformer to their own files.
Change-Id: Ic98403f62bea317600a933f79946a2a9bad30eeb
Reviewed-on: https://pdfium-review.googlesource.com/3551
Commit-Queue: Nicolás Peña <npm@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>
Reviewed-by: Tom Sepez <tsepez@chromium.org>
Diffstat (limited to 'core/fxge/dib/fx_dib_transform.cpp')
-rw-r--r-- | core/fxge/dib/fx_dib_transform.cpp | 827 |
1 files changed, 0 insertions, 827 deletions
diff --git a/core/fxge/dib/fx_dib_transform.cpp b/core/fxge/dib/fx_dib_transform.cpp deleted file mode 100644 index 72de148ecb..0000000000 --- a/core/fxge/dib/fx_dib_transform.cpp +++ /dev/null @@ -1,827 +0,0 @@ -// 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 "core/fxge/dib/dib_int.h" - -#include <memory> -#include <utility> - -#include "core/fxge/fx_dib.h" -#include "third_party/base/ptr_util.h" - -namespace { - -uint8_t bilinear_interpol(const uint8_t* 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; - const uint8_t* buf_u = buf + row_offset_l + c_offset; - const uint8_t* buf_d = buf + row_offset_r + c_offset; - const uint8_t* src_pos0 = buf_u + col_bpp_l; - const uint8_t* src_pos1 = buf_u + col_bpp_r; - const uint8_t* src_pos2 = buf_d + col_bpp_l; - const uint8_t* src_pos3 = buf_d + col_bpp_r; - uint8_t r_pos_0 = (*src_pos0 * i_resx + *src_pos1 * res_x) >> 8; - uint8_t 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; -} - -uint8_t bicubic_interpol(const uint8_t* 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] * (*(uint8_t*)(buf + pos_pixel[i + 4] * pitch + - pos_pixel[j] * bpp + c_offset)); - } - s_result += a_result * v_w[i]; - } - s_result >>= 16; - return (uint8_t)(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_RetainPtr<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; -} - -} // namespace - -const int16_t 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_Matrix& 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; - } -}; - -#define FIX16_005 0.05f -FX_RECT FXDIB_SwapClipBox(FX_RECT& clip, - int width, - int height, - bool bFlipX, - 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_ImageTransformer::CFX_ImageTransformer( - const CFX_RetainPtr<CFX_DIBSource>& pSrc, - const CFX_Matrix* pMatrix, - int flags, - const FX_RECT* pClip) - : m_pSrc(pSrc), - m_pMatrix(pMatrix), - m_pClip(pClip), - m_Flags(flags), - m_Status(0) {} - -CFX_ImageTransformer::~CFX_ImageTransformer() {} - -bool CFX_ImageTransformer::Start() { - CFX_FloatRect unit_rect = m_pMatrix->GetUnitRect(); - FX_RECT result_rect = unit_rect.GetClosestRect(); - FX_RECT result_clip = result_rect; - if (m_pClip) - result_clip.Intersect(*m_pClip); - - if (result_clip.IsEmpty()) - return false; - - m_result = result_clip; - if (FXSYS_fabs(m_pMatrix->a) < FXSYS_fabs(m_pMatrix->b) / 20 && - FXSYS_fabs(m_pMatrix->d) < FXSYS_fabs(m_pMatrix->c) / 20 && - FXSYS_fabs(m_pMatrix->a) < 0.5f && FXSYS_fabs(m_pMatrix->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, - m_pMatrix->c > 0, m_pMatrix->b < 0); - m_Stretcher = pdfium::MakeUnique<CFX_ImageStretcher>( - &m_Storer, m_pSrc, dest_height, dest_width, result_clip, m_Flags); - m_Stretcher->Start(); - m_Status = 1; - return true; - } - if (FXSYS_fabs(m_pMatrix->b) < FIX16_005 && - FXSYS_fabs(m_pMatrix->c) < FIX16_005) { - int dest_width = m_pMatrix->a > 0 ? (int)FXSYS_ceil(m_pMatrix->a) - : (int)FXSYS_floor(m_pMatrix->a); - int dest_height = m_pMatrix->d > 0 ? (int)-FXSYS_ceil(m_pMatrix->d) - : (int)-FXSYS_floor(m_pMatrix->d); - result_clip.Offset(-result_rect.left, -result_rect.top); - m_Stretcher = pdfium::MakeUnique<CFX_ImageStretcher>( - &m_Storer, m_pSrc, dest_width, dest_height, result_clip, m_Flags); - m_Stretcher->Start(); - m_Status = 2; - return true; - } - int stretch_width = (int)FXSYS_ceil(FXSYS_sqrt2(m_pMatrix->a, m_pMatrix->b)); - int stretch_height = (int)FXSYS_ceil(FXSYS_sqrt2(m_pMatrix->c, m_pMatrix->d)); - CFX_Matrix stretch2dest(1.0f, 0.0f, 0.0f, -1.0f, 0.0f, - (float)(stretch_height)); - stretch2dest.Concat( - CFX_Matrix(m_pMatrix->a / stretch_width, m_pMatrix->b / stretch_width, - m_pMatrix->c / stretch_height, m_pMatrix->d / stretch_height, - m_pMatrix->e, m_pMatrix->f)); - m_dest2stretch.SetReverse(stretch2dest); - - CFX_FloatRect clip_rect_f(result_clip); - m_dest2stretch.TransformRect(clip_rect_f); - m_StretchClip = clip_rect_f.GetOuterRect(); - m_StretchClip.Intersect(0, 0, stretch_width, stretch_height); - m_Stretcher = pdfium::MakeUnique<CFX_ImageStretcher>( - &m_Storer, m_pSrc, stretch_width, stretch_height, m_StretchClip, m_Flags); - m_Stretcher->Start(); - m_Status = 3; - return true; -} - -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; - } - - if (m_Status == 2) - return m_Stretcher->Continue(pPause); - - 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()) - return false; - - const uint8_t* stretch_buf = m_Storer.GetBitmap()->GetBuffer(); - const uint8_t* stretch_buf_mask = nullptr; - if (m_Storer.GetBitmap()->m_pAlphaMask) - stretch_buf_mask = m_Storer.GetBitmap()->m_pAlphaMask->GetBuffer(); - - int stretch_pitch = m_Storer.GetBitmap()->GetPitch(); - auto pTransformed = pdfium::MakeRetain<CFX_DIBitmap>(); - FXDIB_Format transformF = GetTransformedFormat(m_Stretcher->source()); - if (!pTransformed->Create(m_result.Width(), m_result.Height(), transformF)) - return false; - - pTransformed->Clear(0); - if (pTransformed->m_pAlphaMask) - pTransformed->m_pAlphaMask->Clear(0); - - CFX_Matrix result2stretch(1.0f, 0.0f, 0.0f, 1.0f, (float)(m_result.left), - (float)(m_result.top)); - result2stretch.Concat(m_dest2stretch); - result2stretch.Translate(-m_StretchClip.left, -m_StretchClip.top); - if (!stretch_buf_mask && 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_result.Height(); row++) { - uint8_t* dest_pos_mask = - (uint8_t*)pTransformed->m_pAlphaMask->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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); - for (int row = 0; row < m_result.Height(); row++) { - uint8_t* dest_pos_mask = - (uint8_t*)pTransformed->m_pAlphaMask->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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 pos_pixel[8]; - int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } - 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_result.Height(); row++) { - uint8_t* dest_pos_mask = - (uint8_t*)pTransformed->m_pAlphaMask->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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_result.Height(); row++) { - uint8_t* dest_scan = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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); - for (int row = 0; row < m_result.Height(); row++) { - uint8_t* dest_scan = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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 pos_pixel[8]; - int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } - 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_result.Height(); row++) { - uint8_t* dest_scan = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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--; - } - const uint8_t* src_pixel = - stretch_buf + stretch_pitch * src_row + src_col; - *dest_scan = *src_pixel; - } - dest_scan++; - } - } - } - } else { - int Bpp = m_Storer.GetBitmap()->GetBPP() / 8; - if (Bpp == 1) { - uint32_t 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); - } - } - } - 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_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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; - uint32_t 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] = (uint8_t)(r_bgra_cmyk >> 24); - dest_pos[1] = (uint8_t)(r_bgra_cmyk >> 16); - dest_pos[2] = (uint8_t)(r_bgra_cmyk >> 8); - } else { - *(uint32_t*)dest_pos = r_bgra_cmyk; - } - } - dest_pos += destBpp; - } - } - } else if (m_Flags & FXDIB_BICUBIC_INTERPOL) { - CFX_BilinearMatrix result2stretch_fix(result2stretch, 8); - for (int row = 0; row < m_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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 pos_pixel[8]; - int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } - bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, - res_x, res_y, stretch_width, - stretch_height); - uint32_t 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] = (uint8_t)(r_bgra_cmyk >> 24); - dest_pos[1] = (uint8_t)(r_bgra_cmyk >> 16); - dest_pos[2] = (uint8_t)(r_bgra_cmyk >> 8); - } else { - *(uint32_t*)dest_pos = r_bgra_cmyk; - } - } - dest_pos += destBpp; - } - } - } else { - CPDF_FixedMatrix result2stretch_fix(result2stretch, 8); - for (int row = 0; row < m_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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--; - } - uint32_t r_bgra_cmyk = - argb[stretch_buf[src_row * stretch_pitch + src_col]]; - if (transformF == FXDIB_Rgba) { - dest_pos[0] = (uint8_t)(r_bgra_cmyk >> 24); - dest_pos[1] = (uint8_t)(r_bgra_cmyk >> 16); - dest_pos[2] = (uint8_t)(r_bgra_cmyk >> 8); - } else { - *(uint32_t*)dest_pos = r_bgra_cmyk; - } - } - dest_pos += destBpp; - } - } - } - } else { - 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_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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; - uint8_t 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); - uint8_t 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); - uint8_t 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); - *(uint32_t*)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 { - uint8_t 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); - *(uint32_t*)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); - *(uint32_t*)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 { - *(uint32_t*)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); - for (int row = 0; row < m_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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 pos_pixel[8]; - int u_w[4], v_w[4]; - if (src_col_l == stretch_width) { - src_col_l--; - } - if (src_row_l == stretch_height) { - src_row_l--; - } - bicubic_get_pos_weight(pos_pixel, u_w, v_w, src_col_l, src_row_l, - res_x, res_y, stretch_width, - stretch_height); - uint8_t r_pos_red_y_r = - bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, - v_w, res_x, res_y, Bpp, 2); - uint8_t r_pos_green_m_r = - bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, u_w, - v_w, res_x, res_y, Bpp, 1); - uint8_t 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); - *(uint32_t*)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 { - uint8_t r_pos_a_r = - bicubic_interpol(stretch_buf, stretch_pitch, pos_pixel, - u_w, v_w, res_x, res_y, Bpp, 3); - *(uint32_t*)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); - *(uint32_t*)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 { - *(uint32_t*)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_result.Height(); row++) { - uint8_t* dest_pos = (uint8_t*)pTransformed->GetScanline(row); - for (int col = 0; col < m_result.Width(); 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--; - } - const uint8_t* 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 { - *(uint32_t*)dest_pos = FXCMYK_TODIB(CmykEncode( - src_pos[0], src_pos[1], src_pos[2], src_pos[3])); - } - } else { - *(uint32_t*)dest_pos = FXARGB_TODIB(FXARGB_MAKE( - src_pos[3], src_pos[2], src_pos[1], src_pos[0])); - } - } else { - if (transformF == FXDIB_Cmyka) { - *(uint32_t*)dest_pos = FXCMYK_TODIB(CmykEncode( - src_pos[0], src_pos[1], src_pos[2], src_pos[3])); - } else { - *(uint32_t*)dest_pos = FXARGB_TODIB( - FXARGB_MAKE(0xff, src_pos[2], src_pos[1], src_pos[0])); - } - } - } - dest_pos += destBpp; - } - } - } - } - } - m_Storer.Replace(std::move(pTransformed)); - return false; -} - -CFX_RetainPtr<CFX_DIBitmap> CFX_ImageTransformer::DetachBitmap() { - return m_Storer.Detach(); -} |