diff options
Diffstat (limited to 'core/fxge/agg/fx_agg_driver.cpp')
| -rw-r--r-- | core/fxge/agg/fx_agg_driver.cpp | 1839 |
1 files changed, 1839 insertions, 0 deletions
diff --git a/core/fxge/agg/fx_agg_driver.cpp b/core/fxge/agg/fx_agg_driver.cpp new file mode 100644 index 0000000000..cd72865421 --- /dev/null +++ b/core/fxge/agg/fx_agg_driver.cpp @@ -0,0 +1,1839 @@ +// 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/agg/fx_agg_driver.h" + +#include <algorithm> + +#include "core/fxge/dib/dib_int.h" +#include "core/fxge/ge/fx_text_int.h" +#include "core/include/fxcodec/fx_codec.h" +#include "core/include/fxge/fx_ge.h" +#include "third_party/agg23/agg_conv_dash.h" +#include "third_party/agg23/agg_conv_stroke.h" +#include "third_party/agg23/agg_curves.h" +#include "third_party/agg23/agg_path_storage.h" +#include "third_party/agg23/agg_pixfmt_gray.h" +#include "third_party/agg23/agg_rasterizer_scanline_aa.h" +#include "third_party/agg23/agg_renderer_scanline.h" +#include "third_party/agg23/agg_scanline_u.h" + +namespace { + +void HardClip(FX_FLOAT& x, FX_FLOAT& y) { + x = std::max(std::min(x, 50000.0f), -50000.0f); + y = std::max(std::min(y, 50000.0f), -50000.0f); +} + +} // namespace + +void CAgg_PathData::BuildPath(const CFX_PathData* pPathData, + const CFX_Matrix* pObject2Device) { + int nPoints = pPathData->GetPointCount(); + FX_PATHPOINT* pPoints = pPathData->GetPoints(); + for (int i = 0; i < nPoints; i++) { + FX_FLOAT x = pPoints[i].m_PointX, y = pPoints[i].m_PointY; + if (pObject2Device) { + pObject2Device->Transform(x, y); + } + HardClip(x, y); + int point_type = pPoints[i].m_Flag & FXPT_TYPE; + if (point_type == FXPT_MOVETO) { + m_PathData.move_to(x, y); + } else if (point_type == FXPT_LINETO) { + if (pPoints[i - 1].m_Flag == FXPT_MOVETO && + (i == nPoints - 1 || pPoints[i + 1].m_Flag == FXPT_MOVETO) && + pPoints[i].m_PointX == pPoints[i - 1].m_PointX && + pPoints[i].m_PointY == pPoints[i - 1].m_PointY) { + x += 1; + } + m_PathData.line_to(x, y); + } else if (point_type == FXPT_BEZIERTO) { + FX_FLOAT x0 = pPoints[i - 1].m_PointX, y0 = pPoints[i - 1].m_PointY; + FX_FLOAT x2 = pPoints[i + 1].m_PointX, y2 = pPoints[i + 1].m_PointY; + FX_FLOAT x3 = pPoints[i + 2].m_PointX, y3 = pPoints[i + 2].m_PointY; + if (pObject2Device) { + pObject2Device->Transform(x0, y0); + pObject2Device->Transform(x2, y2); + pObject2Device->Transform(x3, y3); + } + agg::curve4 curve(x0, y0, x, y, x2, y2, x3, y3); + i += 2; + m_PathData.add_path_curve(curve); + } + if (pPoints[i].m_Flag & FXPT_CLOSEFIGURE) { + m_PathData.end_poly(); + } + } +} +namespace agg { + +template <class BaseRenderer> +class renderer_scanline_aa_offset { + public: + typedef BaseRenderer base_ren_type; + typedef typename base_ren_type::color_type color_type; + renderer_scanline_aa_offset(base_ren_type& ren, unsigned left, unsigned top) + : m_ren(&ren), m_left(left), m_top(top) {} + void color(const color_type& c) { m_color = c; } + const color_type& color() const { return m_color; } + void prepare(unsigned) {} + template <class Scanline> + void render(const Scanline& sl) { + int y = sl.y(); + unsigned num_spans = sl.num_spans(); + typename Scanline::const_iterator span = sl.begin(); + for (;;) { + int x = span->x; + if (span->len > 0) { + m_ren->blend_solid_hspan(x - m_left, y - m_top, (unsigned)span->len, + m_color, span->covers); + } else { + m_ren->blend_hline(x - m_left, y - m_top, (unsigned)(x - span->len - 1), + m_color, *(span->covers)); + } + if (--num_spans == 0) { + break; + } + ++span; + } + } + + private: + base_ren_type* m_ren; + color_type m_color; + unsigned m_left, m_top; +}; + +} // namespace agg + +static void RasterizeStroke(agg::rasterizer_scanline_aa& rasterizer, + agg::path_storage& path_data, + const CFX_Matrix* pObject2Device, + const CFX_GraphStateData* pGraphState, + FX_FLOAT scale = 1.0f, + FX_BOOL bStrokeAdjust = FALSE, + FX_BOOL bTextMode = FALSE) { + agg::line_cap_e cap; + switch (pGraphState->m_LineCap) { + case CFX_GraphStateData::LineCapRound: + cap = agg::round_cap; + break; + case CFX_GraphStateData::LineCapSquare: + cap = agg::square_cap; + break; + default: + cap = agg::butt_cap; + break; + } + agg::line_join_e join; + switch (pGraphState->m_LineJoin) { + case CFX_GraphStateData::LineJoinRound: + join = agg::round_join; + break; + case CFX_GraphStateData::LineJoinBevel: + join = agg::bevel_join; + break; + default: + join = agg::miter_join_revert; + break; + } + FX_FLOAT width = pGraphState->m_LineWidth * scale; + FX_FLOAT unit = 1.f; + if (pObject2Device) { + unit = + 1.0f / ((pObject2Device->GetXUnit() + pObject2Device->GetYUnit()) / 2); + } + if (width < unit) { + width = unit; + } + if (pGraphState->m_DashArray) { + typedef agg::conv_dash<agg::path_storage> dash_converter; + dash_converter dash(path_data); + for (int i = 0; i < (pGraphState->m_DashCount + 1) / 2; i++) { + FX_FLOAT on = pGraphState->m_DashArray[i * 2]; + if (on <= 0.000001f) { + on = 1.0f / 10; + } + FX_FLOAT off = i * 2 + 1 == pGraphState->m_DashCount + ? on + : pGraphState->m_DashArray[i * 2 + 1]; + if (off < 0) { + off = 0; + } + dash.add_dash(on * scale, off * scale); + } + dash.dash_start(pGraphState->m_DashPhase * scale); + typedef agg::conv_stroke<dash_converter> dash_stroke; + dash_stroke stroke(dash); + stroke.line_join(join); + stroke.line_cap(cap); + stroke.miter_limit(pGraphState->m_MiterLimit); + stroke.width(width); + rasterizer.add_path_transformed(stroke, pObject2Device); + } else { + agg::conv_stroke<agg::path_storage> stroke(path_data); + stroke.line_join(join); + stroke.line_cap(cap); + stroke.miter_limit(pGraphState->m_MiterLimit); + stroke.width(width); + rasterizer.add_path_transformed(stroke, pObject2Device); + } +} + +IFX_RenderDeviceDriver* IFX_RenderDeviceDriver::CreateFxgeDriver( + CFX_DIBitmap* pBitmap, + FX_BOOL bRgbByteOrder, + CFX_DIBitmap* pOriDevice, + FX_BOOL bGroupKnockout) { + return new CFX_AggDeviceDriver(pBitmap, 0, bRgbByteOrder, pOriDevice, + bGroupKnockout); +} + +CFX_AggDeviceDriver::CFX_AggDeviceDriver(CFX_DIBitmap* pBitmap, + int dither_bits, + FX_BOOL bRgbByteOrder, + CFX_DIBitmap* pOriDevice, + FX_BOOL bGroupKnockout) { + m_pBitmap = pBitmap; + m_DitherBits = dither_bits; + m_pClipRgn = NULL; + m_pPlatformBitmap = NULL; + m_pPlatformGraphics = NULL; + m_pDwRenderTartget = NULL; + m_bRgbByteOrder = bRgbByteOrder; + m_pOriDevice = pOriDevice; + m_bGroupKnockout = bGroupKnockout; + m_FillFlags = 0; + InitPlatform(); +} + +CFX_AggDeviceDriver::~CFX_AggDeviceDriver() { + delete m_pClipRgn; + for (int i = 0; i < m_StateStack.GetSize(); i++) + delete m_StateStack[i]; + DestroyPlatform(); +} + +uint8_t* CFX_AggDeviceDriver::GetBuffer() const { + return m_pBitmap->GetBuffer(); +} + +#if _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ +void CFX_AggDeviceDriver::InitPlatform() {} + +void CFX_AggDeviceDriver::DestroyPlatform() {} + +FX_BOOL CFX_AggDeviceDriver::DrawDeviceText(int nChars, + const FXTEXT_CHARPOS* pCharPos, + CFX_Font* pFont, + CFX_FontCache* pCache, + const CFX_Matrix* pObject2Device, + FX_FLOAT font_size, + FX_DWORD color, + int alpha_flag, + void* pIccTransform) { + return FALSE; +} // _FXM_PLATFORM_ != _FXM_PLATFORM_APPLE_ +#endif + +int CFX_AggDeviceDriver::GetDeviceCaps(int caps_id) { + switch (caps_id) { + case FXDC_DEVICE_CLASS: + return FXDC_DISPLAY; + case FXDC_PIXEL_WIDTH: + return m_pBitmap->GetWidth(); + case FXDC_PIXEL_HEIGHT: + return m_pBitmap->GetHeight(); + case FXDC_BITS_PIXEL: + return m_pBitmap->GetBPP(); + case FXDC_HORZ_SIZE: + case FXDC_VERT_SIZE: + return 0; + case FXDC_RENDER_CAPS: { + int flags = FXRC_GET_BITS | FXRC_ALPHA_PATH | FXRC_ALPHA_IMAGE | + FXRC_BLEND_MODE | FXRC_SOFT_CLIP; + if (m_pBitmap->HasAlpha()) { + flags |= FXRC_ALPHA_OUTPUT; + } else if (m_pBitmap->IsAlphaMask()) { + if (m_pBitmap->GetBPP() == 1) { + flags |= FXRC_BITMASK_OUTPUT; + } else { + flags |= FXRC_BYTEMASK_OUTPUT; + } + } + if (m_pBitmap->IsCmykImage()) { + flags |= FXRC_CMYK_OUTPUT; + } + return flags; + } + case FXDC_DITHER_BITS: + return m_DitherBits; + } + return 0; +} + +void CFX_AggDeviceDriver::SaveState() { + CFX_ClipRgn* pClip = NULL; + if (m_pClipRgn) { + pClip = new CFX_ClipRgn(*m_pClipRgn); + } + m_StateStack.Add(pClip); +} + +void CFX_AggDeviceDriver::RestoreState(FX_BOOL bKeepSaved) { + if (m_StateStack.GetSize() == 0) { + delete m_pClipRgn; + m_pClipRgn = NULL; + return; + } + CFX_ClipRgn* pSavedClip = m_StateStack[m_StateStack.GetSize() - 1]; + delete m_pClipRgn; + m_pClipRgn = NULL; + if (bKeepSaved) { + if (pSavedClip) { + m_pClipRgn = new CFX_ClipRgn(*pSavedClip); + } + } else { + m_StateStack.RemoveAt(m_StateStack.GetSize() - 1); + m_pClipRgn = pSavedClip; + } +} + +void CFX_AggDeviceDriver::SetClipMask(agg::rasterizer_scanline_aa& rasterizer) { + FX_RECT path_rect(rasterizer.min_x(), rasterizer.min_y(), + rasterizer.max_x() + 1, rasterizer.max_y() + 1); + path_rect.Intersect(m_pClipRgn->GetBox()); + CFX_DIBitmapRef mask; + CFX_DIBitmap* pThisLayer = mask.New(); + if (!pThisLayer) { + return; + } + pThisLayer->Create(path_rect.Width(), path_rect.Height(), FXDIB_8bppMask); + pThisLayer->Clear(0); + agg::rendering_buffer raw_buf(pThisLayer->GetBuffer(), pThisLayer->GetWidth(), + pThisLayer->GetHeight(), + pThisLayer->GetPitch()); + agg::pixfmt_gray8 pixel_buf(raw_buf); + agg::renderer_base<agg::pixfmt_gray8> base_buf(pixel_buf); + agg::renderer_scanline_aa_offset<agg::renderer_base<agg::pixfmt_gray8> > + final_render(base_buf, path_rect.left, path_rect.top); + final_render.color(agg::gray8(255)); + agg::scanline_u8 scanline; + agg::render_scanlines(rasterizer, scanline, final_render, + (m_FillFlags & FXFILL_NOPATHSMOOTH) != 0); + m_pClipRgn->IntersectMaskF(path_rect.left, path_rect.top, mask); +} + +FX_BOOL CFX_AggDeviceDriver::SetClip_PathFill(const CFX_PathData* pPathData, + const CFX_Matrix* pObject2Device, + int fill_mode) { + m_FillFlags = fill_mode; + if (!m_pClipRgn) { + m_pClipRgn = new CFX_ClipRgn(GetDeviceCaps(FXDC_PIXEL_WIDTH), + GetDeviceCaps(FXDC_PIXEL_HEIGHT)); + } + if (pPathData->GetPointCount() == 5 || pPathData->GetPointCount() == 4) { + CFX_FloatRect rectf; + if (pPathData->IsRect(pObject2Device, &rectf)) { + rectf.Intersect( + CFX_FloatRect(0, 0, (FX_FLOAT)GetDeviceCaps(FXDC_PIXEL_WIDTH), + (FX_FLOAT)GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + FX_RECT rect = rectf.GetOutterRect(); + m_pClipRgn->IntersectRect(rect); + return TRUE; + } + } + CAgg_PathData path_data; + path_data.BuildPath(pPathData, pObject2Device); + path_data.m_PathData.end_poly(); + agg::rasterizer_scanline_aa rasterizer; + rasterizer.clip_box(0.0f, 0.0f, (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_WIDTH)), + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + rasterizer.add_path(path_data.m_PathData); + rasterizer.filling_rule((fill_mode & 3) == FXFILL_WINDING + ? agg::fill_non_zero + : agg::fill_even_odd); + SetClipMask(rasterizer); + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::SetClip_PathStroke( + const CFX_PathData* pPathData, + const CFX_Matrix* pObject2Device, + const CFX_GraphStateData* pGraphState) { + if (!m_pClipRgn) { + m_pClipRgn = new CFX_ClipRgn(GetDeviceCaps(FXDC_PIXEL_WIDTH), + GetDeviceCaps(FXDC_PIXEL_HEIGHT)); + } + CAgg_PathData path_data; + path_data.BuildPath(pPathData, NULL); + agg::rasterizer_scanline_aa rasterizer; + rasterizer.clip_box(0.0f, 0.0f, (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_WIDTH)), + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + RasterizeStroke(rasterizer, path_data.m_PathData, pObject2Device, + pGraphState); + rasterizer.filling_rule(agg::fill_non_zero); + SetClipMask(rasterizer); + return TRUE; +} + +class CFX_Renderer { + private: + int m_Alpha, m_Red, m_Green, m_Blue, m_Gray; + FX_DWORD m_Color; + FX_BOOL m_bFullCover; + FX_BOOL m_bRgbByteOrder; + CFX_DIBitmap* m_pOriDevice; + FX_RECT m_ClipBox; + const CFX_DIBitmap* m_pClipMask; + CFX_DIBitmap* m_pDevice; + const CFX_ClipRgn* m_pClipRgn; + void (CFX_Renderer::*composite_span)(uint8_t*, + int, + int, + int, + uint8_t*, + int, + int, + uint8_t*, + uint8_t*); + + public: + void prepare(unsigned) {} + + void CompositeSpan(uint8_t* dest_scan, + uint8_t* ori_scan, + int Bpp, + FX_BOOL bDestAlpha, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan) { + ASSERT(!m_pDevice->IsCmykImage()); + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + if (Bpp) { + dest_scan += col_start * Bpp; + ori_scan += col_start * Bpp; + } else { + dest_scan += col_start / 8; + ori_scan += col_start / 8; + } + if (m_bRgbByteOrder) { + if (Bpp == 4 && bDestAlpha) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + uint8_t dest_alpha = + ori_scan[3] + src_alpha - ori_scan[3] * src_alpha / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + if (m_bFullCover) { + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio); + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio); + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio); + dest_scan++; + ori_scan++; + } else { + int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, alpha_ratio); + int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, alpha_ratio); + int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, alpha_ratio); + ori_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]); + dest_scan += 2; + } + } + return; + } + if (Bpp == 3 || Bpp == 4) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, src_alpha); + int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); + int b = FXDIB_ALPHA_MERGE(*ori_scan, m_Blue, src_alpha); + ori_scan += Bpp - 2; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]); + dest_scan += Bpp - 2; + } + } + return; + } + if (Bpp == 4 && bDestAlpha) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + int src_alpha_covered = src_alpha * cover_scan[col] / 255; + if (src_alpha_covered == 0) { + dest_scan += 4; + continue; + } + if (cover_scan[col] == 255) { + dest_scan[3] = src_alpha_covered; + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } else { + if (dest_scan[3] == 0) { + dest_scan[3] = src_alpha_covered; + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } + uint8_t cover = cover_scan[col]; + dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], src_alpha, cover); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover); + dest_scan += 2; + } + } + return; + } + if (Bpp == 3 || Bpp == 4) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + if (m_bFullCover) { + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha); + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha); + dest_scan += Bpp - 2; + ori_scan += Bpp - 2; + continue; + } + int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, src_alpha); + int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, src_alpha); + int r = FXDIB_ALPHA_MERGE(*ori_scan, m_Red, src_alpha); + ori_scan += Bpp - 2; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, b, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan[col]); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan[col]); + dest_scan += Bpp - 2; + continue; + } + return; + } + if (Bpp == 1) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + if (m_bFullCover) { + *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + } else { + int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan[col]); + dest_scan++; + } + } + } else { + int index = 0; + if (m_pDevice->GetPalette()) { + for (int i = 0; i < 2; i++) { + if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) { + index = i; + } + } + } else { + index = ((uint8_t)m_Color == 0xff) ? 1 : 0; + } + uint8_t* dest_scan1 = dest_scan; + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + if (src_alpha) { + if (!index) { + *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8)); + } else { + *dest_scan1 |= 1 << (7 - (col + span_left) % 8); + } + } + dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8; + } + } + } + + void CompositeSpan1bpp(uint8_t* dest_scan, + int Bpp, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan, + uint8_t* dest_extra_alpha_scan) { + ASSERT(!m_bRgbByteOrder); + ASSERT(!m_pDevice->IsCmykImage()); + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + dest_scan += col_start / 8; + int index = 0; + if (m_pDevice->GetPalette()) { + for (int i = 0; i < 2; i++) { + if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) { + index = i; + } + } + } else { + index = ((uint8_t)m_Color == 0xff) ? 1 : 0; + } + uint8_t* dest_scan1 = dest_scan; + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + if (src_alpha) { + if (!index) { + *dest_scan1 &= ~(1 << (7 - (col + span_left) % 8)); + } else { + *dest_scan1 |= 1 << (7 - (col + span_left) % 8); + } + } + dest_scan1 = dest_scan + (span_left % 8 + col - col_start + 1) / 8; + } + } + + void CompositeSpanGray(uint8_t* dest_scan, + int Bpp, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan, + uint8_t* dest_extra_alpha_scan) { + ASSERT(!m_bRgbByteOrder); + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + dest_scan += col_start; + if (dest_extra_alpha_scan) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + *dest_scan = m_Gray; + *dest_extra_alpha_scan = m_Alpha; + } else { + uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha - + (*dest_extra_alpha_scan) * src_alpha / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, alpha_ratio); + dest_scan++; + continue; + } + } + dest_extra_alpha_scan++; + dest_scan++; + } + } else { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + if (src_alpha) { + if (src_alpha == 255) { + *dest_scan = m_Gray; + } else { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha); + } + } + dest_scan++; + } + } + } + + void CompositeSpanARGB(uint8_t* dest_scan, + int Bpp, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan, + uint8_t* dest_extra_alpha_scan) { + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + dest_scan += col_start * Bpp; + if (m_bRgbByteOrder) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + *(FX_DWORD*)dest_scan = m_Color; + } else { + uint8_t dest_alpha = + dest_scan[3] + src_alpha - dest_scan[3] * src_alpha / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); + dest_scan += 2; + continue; + } + } + dest_scan += 4; + } + return; + } + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + *(FX_DWORD*)dest_scan = m_Color; + } else { + if (dest_scan[3] == 0) { + dest_scan[3] = src_alpha; + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } + uint8_t dest_alpha = + dest_scan[3] + src_alpha - dest_scan[3] * src_alpha / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); + dest_scan += 2; + continue; + } + } + dest_scan += Bpp; + } + } + + void CompositeSpanRGB(uint8_t* dest_scan, + int Bpp, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan, + uint8_t* dest_extra_alpha_scan) { + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + dest_scan += col_start * Bpp; + if (m_bRgbByteOrder) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + if (src_alpha) { + if (src_alpha == 255) { + if (Bpp == 4) { + *(FX_DWORD*)dest_scan = m_Color; + } else if (Bpp == 3) { + *dest_scan++ = m_Red; + *dest_scan++ = m_Green; + *dest_scan++ = m_Blue; + continue; + } + } else { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha); + dest_scan += Bpp - 2; + continue; + } + } + dest_scan += Bpp; + } + return; + } + if (Bpp == 3 && dest_extra_alpha_scan) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + *dest_scan++ = (uint8_t)m_Blue; + *dest_scan++ = (uint8_t)m_Green; + *dest_scan++ = (uint8_t)m_Red; + *dest_extra_alpha_scan++ = (uint8_t)m_Alpha; + continue; + } else { + uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha - + (*dest_extra_alpha_scan) * src_alpha / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); + dest_scan++; + continue; + } + } + dest_extra_alpha_scan++; + dest_scan += Bpp; + } + } else { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + if (Bpp == 4) { + *(FX_DWORD*)dest_scan = m_Color; + } else if (Bpp == 3) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + continue; + } + } else { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha); + dest_scan += Bpp - 2; + continue; + } + } + dest_scan += Bpp; + } + } + } + + void CompositeSpanCMYK(uint8_t* dest_scan, + int Bpp, + int span_left, + int span_len, + uint8_t* cover_scan, + int clip_left, + int clip_right, + uint8_t* clip_scan, + uint8_t* dest_extra_alpha_scan) { + ASSERT(!m_bRgbByteOrder); + int col_start = span_left < clip_left ? clip_left - span_left : 0; + int col_end = (span_left + span_len) < clip_right + ? span_len + : (clip_right - span_left); + dest_scan += col_start * 4; + if (dest_extra_alpha_scan) { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (m_bFullCover) { + if (clip_scan) { + src_alpha = m_Alpha * clip_scan[col] / 255; + } else { + src_alpha = m_Alpha; + } + } else { + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + } + if (src_alpha) { + if (src_alpha == 255) { + *(FX_CMYK*)dest_scan = m_Color; + *dest_extra_alpha_scan = (uint8_t)m_Alpha; + } else { + uint8_t dest_alpha = (*dest_extra_alpha_scan) + src_alpha - + (*dest_extra_alpha_scan) * src_alpha / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, alpha_ratio); + dest_scan++; + continue; + } + } + dest_extra_alpha_scan++; + dest_scan += 4; + } + } else { + for (int col = col_start; col < col_end; col++) { + int src_alpha; + if (clip_scan) { + src_alpha = m_Alpha * cover_scan[col] * clip_scan[col] / 255 / 255; + } else { + src_alpha = m_Alpha * cover_scan[col] / 255; + } + if (src_alpha) { + if (src_alpha == 255) { + *(FX_CMYK*)dest_scan = m_Color; + } else { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha); + dest_scan++; + continue; + } + } + dest_scan += 4; + } + } + } + + template <class Scanline> + void render(const Scanline& sl) { + if (!m_pOriDevice && !composite_span) { + return; + } + int y = sl.y(); + if (y < m_ClipBox.top || y >= m_ClipBox.bottom) { + return; + } + uint8_t* dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * y; + uint8_t* dest_scan_extra_alpha = NULL; + CFX_DIBitmap* pAlphaMask = m_pDevice->m_pAlphaMask; + if (pAlphaMask) { + dest_scan_extra_alpha = + pAlphaMask->GetBuffer() + pAlphaMask->GetPitch() * y; + } + uint8_t* ori_scan = NULL; + if (m_pOriDevice) { + ori_scan = m_pOriDevice->GetBuffer() + m_pOriDevice->GetPitch() * y; + } + int Bpp = m_pDevice->GetBPP() / 8; + FX_BOOL bDestAlpha = m_pDevice->HasAlpha() || m_pDevice->IsAlphaMask(); + unsigned num_spans = sl.num_spans(); + typename Scanline::const_iterator span = sl.begin(); + while (1) { + int x = span->x; + ASSERT(span->len > 0); + uint8_t* dest_pos = NULL; + uint8_t* dest_extra_alpha_pos = NULL; + uint8_t* ori_pos = NULL; + if (Bpp) { + ori_pos = ori_scan ? ori_scan + x * Bpp : NULL; + dest_pos = dest_scan + x * Bpp; + dest_extra_alpha_pos = + dest_scan_extra_alpha ? dest_scan_extra_alpha + x : NULL; + } else { + dest_pos = dest_scan + x / 8; + ori_pos = ori_scan ? ori_scan + x / 8 : NULL; + } + uint8_t* clip_pos = NULL; + if (m_pClipMask) { + clip_pos = m_pClipMask->GetBuffer() + + (y - m_ClipBox.top) * m_pClipMask->GetPitch() + x - + m_ClipBox.left; + } + if (ori_pos) { + CompositeSpan(dest_pos, ori_pos, Bpp, bDestAlpha, x, span->len, + span->covers, m_ClipBox.left, m_ClipBox.right, clip_pos); + } else { + (this->*composite_span)(dest_pos, Bpp, x, span->len, span->covers, + m_ClipBox.left, m_ClipBox.right, clip_pos, + dest_extra_alpha_pos); + } + if (--num_spans == 0) { + break; + } + ++span; + } + } + + FX_BOOL Init(CFX_DIBitmap* pDevice, + CFX_DIBitmap* pOriDevice, + const CFX_ClipRgn* pClipRgn, + FX_DWORD color, + FX_BOOL bFullCover, + FX_BOOL bRgbByteOrder, + int alpha_flag = 0, + void* pIccTransform = NULL) { + m_pDevice = pDevice; + m_pClipRgn = pClipRgn; + composite_span = NULL; + m_bRgbByteOrder = bRgbByteOrder; + m_pOriDevice = pOriDevice; + if (m_pClipRgn) { + m_ClipBox = m_pClipRgn->GetBox(); + } else { + m_ClipBox.left = m_ClipBox.top = 0; + m_ClipBox.right = m_pDevice->GetWidth(); + m_ClipBox.bottom = m_pDevice->GetHeight(); + } + m_pClipMask = NULL; + if (m_pClipRgn && m_pClipRgn->GetType() == CFX_ClipRgn::MaskF) { + m_pClipMask = m_pClipRgn->GetMask(); + } + m_bFullCover = bFullCover; + FX_BOOL bObjectCMYK = FXGETFLAG_COLORTYPE(alpha_flag); + FX_BOOL bDeviceCMYK = pDevice->IsCmykImage(); + m_Alpha = bObjectCMYK ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color); + ICodec_IccModule* pIccModule = NULL; + if (!CFX_GEModule::Get()->GetCodecModule() || + !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) { + pIccTransform = NULL; + } else { + pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); + } + if (m_pDevice->GetBPP() == 8) { + ASSERT(!m_bRgbByteOrder); + composite_span = &CFX_Renderer::CompositeSpanGray; + if (m_pDevice->IsAlphaMask()) { + m_Gray = 255; + } else { + if (pIccTransform) { + uint8_t gray; + color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, &gray, + (const uint8_t*)&color, 1); + m_Gray = gray; + } else { + if (bObjectCMYK) { + uint8_t r, g, b; + AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color), + FXSYS_GetYValue(color), FXSYS_GetKValue(color), + r, g, b); + m_Gray = FXRGB2GRAY(r, g, b); + } else { + m_Gray = + FXRGB2GRAY(FXARGB_R(color), FXARGB_G(color), FXARGB_B(color)); + } + } + } + return TRUE; + } + if (bDeviceCMYK) { + ASSERT(!m_bRgbByteOrder); + composite_span = &CFX_Renderer::CompositeSpanCMYK; + if (bObjectCMYK) { + m_Color = FXCMYK_TODIB(color); + if (pIccTransform) { + pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color, + (const uint8_t*)&m_Color, 1); + } + } else { + if (!pIccTransform) { + return FALSE; + } + color = FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color, + (const uint8_t*)&color, 1); + } + m_Red = ((uint8_t*)&m_Color)[0]; + m_Green = ((uint8_t*)&m_Color)[1]; + m_Blue = ((uint8_t*)&m_Color)[2]; + m_Gray = ((uint8_t*)&m_Color)[3]; + } else { + composite_span = (pDevice->GetFormat() == FXDIB_Argb) + ? &CFX_Renderer::CompositeSpanARGB + : &CFX_Renderer::CompositeSpanRGB; + if (pIccTransform) { + color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&m_Color, + (const uint8_t*)&color, 1); + ((uint8_t*)&m_Color)[3] = m_Alpha; + m_Red = ((uint8_t*)&m_Color)[2]; + m_Green = ((uint8_t*)&m_Color)[1]; + m_Blue = ((uint8_t*)&m_Color)[0]; + if (m_bRgbByteOrder) { + m_Color = FXARGB_TODIB(m_Color); + m_Color = FXARGB_TOBGRORDERDIB(m_Color); + } + } else { + if (bObjectCMYK) { + uint8_t r, g, b; + AdobeCMYK_to_sRGB1(FXSYS_GetCValue(color), FXSYS_GetMValue(color), + FXSYS_GetYValue(color), FXSYS_GetKValue(color), r, + g, b); + m_Color = FXARGB_MAKE(m_Alpha, r, g, b); + if (m_bRgbByteOrder) { + m_Color = FXARGB_TOBGRORDERDIB(m_Color); + } else { + m_Color = FXARGB_TODIB(m_Color); + } + m_Red = r; + m_Green = g; + m_Blue = b; + } else { + if (m_bRgbByteOrder) { + m_Color = FXARGB_TOBGRORDERDIB(color); + } else { + m_Color = FXARGB_TODIB(color); + } + ArgbDecode(color, m_Alpha, m_Red, m_Green, m_Blue); + } + } + } + if (m_pDevice->GetBPP() == 1) { + composite_span = &CFX_Renderer::CompositeSpan1bpp; + } + return TRUE; + } +}; + +FX_BOOL CFX_AggDeviceDriver::RenderRasterizer( + agg::rasterizer_scanline_aa& rasterizer, + FX_DWORD color, + FX_BOOL bFullCover, + FX_BOOL bGroupKnockout, + int alpha_flag, + void* pIccTransform) { + CFX_DIBitmap* pt = bGroupKnockout ? m_pOriDevice : NULL; + CFX_Renderer render; + if (!render.Init(m_pBitmap, pt, m_pClipRgn, color, bFullCover, + m_bRgbByteOrder, alpha_flag, pIccTransform)) { + return FALSE; + } + agg::scanline_u8 scanline; + agg::render_scanlines(rasterizer, scanline, render, + (m_FillFlags & FXFILL_NOPATHSMOOTH) != 0); + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::DrawPath(const CFX_PathData* pPathData, + const CFX_Matrix* pObject2Device, + const CFX_GraphStateData* pGraphState, + FX_DWORD fill_color, + FX_DWORD stroke_color, + int fill_mode, + int alpha_flag, + void* pIccTransform, + int blend_type) { + if (blend_type != FXDIB_BLEND_NORMAL) { + return FALSE; + } + if (!GetBuffer()) { + return TRUE; + } + m_FillFlags = fill_mode; + if ((fill_mode & 3) && fill_color) { + CAgg_PathData path_data; + path_data.BuildPath(pPathData, pObject2Device); + agg::rasterizer_scanline_aa rasterizer; + rasterizer.clip_box(0.0f, 0.0f, (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_WIDTH)), + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + rasterizer.add_path(path_data.m_PathData); + rasterizer.filling_rule((fill_mode & 3) == FXFILL_WINDING + ? agg::fill_non_zero + : agg::fill_even_odd); + if (!RenderRasterizer(rasterizer, fill_color, fill_mode & FXFILL_FULLCOVER, + FALSE, alpha_flag, pIccTransform)) { + return FALSE; + } + } + int stroke_alpha = FXGETFLAG_COLORTYPE(alpha_flag) + ? FXGETFLAG_ALPHA_STROKE(alpha_flag) + : FXARGB_A(stroke_color); + if (pGraphState && stroke_alpha) { + if (fill_mode & FX_ZEROAREA_FILL) { + CAgg_PathData path_data; + path_data.BuildPath(pPathData, pObject2Device); + agg::rasterizer_scanline_aa rasterizer; + rasterizer.clip_box(0.0f, 0.0f, + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_WIDTH)), + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + RasterizeStroke(rasterizer, path_data.m_PathData, NULL, pGraphState, 1, + FALSE, fill_mode & FX_STROKE_TEXT_MODE); + int fill_flag = FXGETFLAG_COLORTYPE(alpha_flag) << 8 | + FXGETFLAG_ALPHA_STROKE(alpha_flag); + if (!RenderRasterizer(rasterizer, stroke_color, + fill_mode & FXFILL_FULLCOVER, m_bGroupKnockout, + fill_flag, pIccTransform)) { + return FALSE; + } + return TRUE; + } + CFX_Matrix matrix1, matrix2; + if (pObject2Device) { + matrix1.a = std::max(FXSYS_fabs(pObject2Device->a), + FXSYS_fabs(pObject2Device->b)); + matrix1.d = matrix1.a; + matrix2.Set(pObject2Device->a / matrix1.a, pObject2Device->b / matrix1.a, + pObject2Device->c / matrix1.d, pObject2Device->d / matrix1.d, + 0, 0); + CFX_Matrix mtRervese; + mtRervese.SetReverse(matrix2); + matrix1 = *pObject2Device; + matrix1.Concat(mtRervese); + } + CAgg_PathData path_data; + path_data.BuildPath(pPathData, &matrix1); + agg::rasterizer_scanline_aa rasterizer; + rasterizer.clip_box(0.0f, 0.0f, (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_WIDTH)), + (FX_FLOAT)(GetDeviceCaps(FXDC_PIXEL_HEIGHT))); + RasterizeStroke(rasterizer, path_data.m_PathData, &matrix2, pGraphState, + matrix1.a, FALSE, fill_mode & FX_STROKE_TEXT_MODE); + int fill_flag = FXGETFLAG_COLORTYPE(alpha_flag) << 8 | + FXGETFLAG_ALPHA_STROKE(alpha_flag); + if (!RenderRasterizer(rasterizer, stroke_color, + fill_mode & FXFILL_FULLCOVER, m_bGroupKnockout, + fill_flag, pIccTransform)) { + return FALSE; + } + } + return TRUE; +} + +void RgbByteOrderSetPixel(CFX_DIBitmap* pBitmap, int x, int y, FX_DWORD argb) { + if (x < 0 || x >= pBitmap->GetWidth() || y < 0 || y >= pBitmap->GetHeight()) { + return; + } + uint8_t* pos = (uint8_t*)pBitmap->GetBuffer() + y * pBitmap->GetPitch() + + x * pBitmap->GetBPP() / 8; + if (pBitmap->GetFormat() == FXDIB_Argb) { + FXARGB_SETRGBORDERDIB(pos, ArgbGamma(argb)); + } else { + int alpha = FXARGB_A(argb); + pos[0] = (FXARGB_R(argb) * alpha + pos[0] * (255 - alpha)) / 255; + pos[1] = (FXARGB_G(argb) * alpha + pos[1] * (255 - alpha)) / 255; + pos[2] = (FXARGB_B(argb) * alpha + pos[2] * (255 - alpha)) / 255; + } +} + +void RgbByteOrderCompositeRect(CFX_DIBitmap* pBitmap, + int left, + int top, + int width, + int height, + FX_ARGB argb) { + int src_alpha = FXARGB_A(argb); + if (src_alpha == 0) { + return; + } + FX_RECT rect(left, top, left + width, top + height); + rect.Intersect(0, 0, pBitmap->GetWidth(), pBitmap->GetHeight()); + width = rect.Width(); + int src_r = FXARGB_R(argb), src_g = FXARGB_G(argb), src_b = FXARGB_B(argb); + int Bpp = pBitmap->GetBPP() / 8; + FX_BOOL bAlpha = pBitmap->HasAlpha(); + int dib_argb = FXARGB_TOBGRORDERDIB(argb); + uint8_t* pBuffer = pBitmap->GetBuffer(); + if (src_alpha == 255) { + for (int row = rect.top; row < rect.bottom; row++) { + uint8_t* dest_scan = + pBuffer + row * pBitmap->GetPitch() + rect.left * Bpp; + if (Bpp == 4) { + FX_DWORD* scan = (FX_DWORD*)dest_scan; + for (int col = 0; col < width; col++) { + *scan++ = dib_argb; + } + } else { + for (int col = 0; col < width; col++) { + *dest_scan++ = src_r; + *dest_scan++ = src_g; + *dest_scan++ = src_b; + } + } + } + return; + } + src_r = FX_GAMMA(src_r); + src_g = FX_GAMMA(src_g); + src_b = FX_GAMMA(src_b); + for (int row = rect.top; row < rect.bottom; row++) { + uint8_t* dest_scan = pBuffer + row * pBitmap->GetPitch() + rect.left * Bpp; + if (bAlpha) { + for (int col = 0; col < width; col++) { + uint8_t back_alpha = dest_scan[3]; + if (back_alpha == 0) { + FXARGB_SETRGBORDERDIB(dest_scan, + FXARGB_MAKE(src_alpha, src_r, src_g, src_b)); + dest_scan += 4; + continue; + } + uint8_t dest_alpha = + back_alpha + src_alpha - back_alpha * src_alpha / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha * 255 / dest_alpha; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, src_r, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, src_g, alpha_ratio); + dest_scan++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, src_b, alpha_ratio); + dest_scan += 2; + } + } else { + for (int col = 0; col < width; col++) { + *dest_scan = FX_GAMMA_INVERSE( + FXDIB_ALPHA_MERGE(FX_GAMMA(*dest_scan), src_r, src_alpha)); + dest_scan++; + *dest_scan = FX_GAMMA_INVERSE( + FXDIB_ALPHA_MERGE(FX_GAMMA(*dest_scan), src_g, src_alpha)); + dest_scan++; + *dest_scan = FX_GAMMA_INVERSE( + FXDIB_ALPHA_MERGE(FX_GAMMA(*dest_scan), src_b, src_alpha)); + dest_scan++; + if (Bpp == 4) { + dest_scan++; + } + } + } + } +} + +void RgbByteOrderTransferBitmap(CFX_DIBitmap* pBitmap, + int dest_left, + int dest_top, + int width, + int height, + const CFX_DIBSource* pSrcBitmap, + int src_left, + int src_top) { + if (!pBitmap) { + return; + } + pBitmap->GetOverlapRect(dest_left, dest_top, width, height, + pSrcBitmap->GetWidth(), pSrcBitmap->GetHeight(), + src_left, src_top, NULL); + if (width == 0 || height == 0) { + return; + } + int Bpp = pBitmap->GetBPP() / 8; + FXDIB_Format dest_format = pBitmap->GetFormat(); + FXDIB_Format src_format = pSrcBitmap->GetFormat(); + int pitch = pBitmap->GetPitch(); + uint8_t* buffer = pBitmap->GetBuffer(); + if (dest_format == src_format) { + for (int row = 0; row < height; row++) { + uint8_t* dest_scan = buffer + (dest_top + row) * pitch + dest_left * Bpp; + uint8_t* src_scan = + (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * Bpp; + if (Bpp == 4) { + for (int col = 0; col < width; col++) { + FXARGB_SETDIB(dest_scan, FXARGB_MAKE(src_scan[3], src_scan[0], + src_scan[1], src_scan[2])); + dest_scan += 4; + src_scan += 4; + } + } else { + for (int col = 0; col < width; col++) { + *dest_scan++ = src_scan[2]; + *dest_scan++ = src_scan[1]; + *dest_scan++ = src_scan[0]; + src_scan += 3; + } + } + } + return; + } + uint8_t* dest_buf = buffer + dest_top * pitch + dest_left * Bpp; + if (dest_format == FXDIB_Rgb) { + if (src_format == FXDIB_Rgb32) { + for (int row = 0; row < height; row++) { + uint8_t* dest_scan = dest_buf + row * pitch; + uint8_t* src_scan = + (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * 4; + for (int col = 0; col < width; col++) { + *dest_scan++ = src_scan[2]; + *dest_scan++ = src_scan[1]; + *dest_scan++ = src_scan[0]; + src_scan += 4; + } + } + } else { + ASSERT(FALSE); + } + } else if (dest_format == FXDIB_Argb || dest_format == FXDIB_Rgb32) { + if (src_format == FXDIB_Rgb) { + for (int row = 0; row < height; row++) { + uint8_t* dest_scan = (uint8_t*)(dest_buf + row * pitch); + uint8_t* src_scan = + (uint8_t*)pSrcBitmap->GetScanline(src_top + row) + src_left * 3; + if (src_format == FXDIB_Argb) { + for (int col = 0; col < width; col++) { + FXARGB_SETDIB(dest_scan, FXARGB_MAKE(0xff, FX_GAMMA(src_scan[0]), + FX_GAMMA(src_scan[1]), + FX_GAMMA(src_scan[2]))); + dest_scan += 4; + src_scan += 3; + } + } else { + for (int col = 0; col < width; col++) { + FXARGB_SETDIB(dest_scan, FXARGB_MAKE(0xff, src_scan[0], src_scan[1], + src_scan[2])); + dest_scan += 4; + src_scan += 3; + } + } + } + } else if (src_format == FXDIB_Rgb32) { + ASSERT(dest_format == FXDIB_Argb); + for (int row = 0; row < height; row++) { + uint8_t* dest_scan = dest_buf + row * pitch; + uint8_t* src_scan = + (uint8_t*)(pSrcBitmap->GetScanline(src_top + row) + src_left * 4); + for (int col = 0; col < width; col++) { + FXARGB_SETDIB(dest_scan, FXARGB_MAKE(0xff, src_scan[0], src_scan[1], + src_scan[2])); + src_scan += 4; + dest_scan += 4; + } + } + } + } else { + ASSERT(FALSE); + } +} + +FX_ARGB _DefaultCMYK2ARGB(FX_CMYK cmyk, uint8_t alpha) { + uint8_t r, g, b; + AdobeCMYK_to_sRGB1(FXSYS_GetCValue(cmyk), FXSYS_GetMValue(cmyk), + FXSYS_GetYValue(cmyk), FXSYS_GetKValue(cmyk), r, g, b); + return ArgbEncode(alpha, r, g, b); +} + +FX_BOOL _DibSetPixel(CFX_DIBitmap* pDevice, + int x, + int y, + FX_DWORD color, + int alpha_flag, + void* pIccTransform) { + FX_BOOL bObjCMYK = FXGETFLAG_COLORTYPE(alpha_flag); + int alpha = bObjCMYK ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color); + if (pIccTransform) { + ICodec_IccModule* pIccModule = + CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); + color = bObjCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, (uint8_t*)&color, + (uint8_t*)&color, 1); + color = bObjCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + if (!pDevice->IsCmykImage()) { + color = (color & 0xffffff) | (alpha << 24); + } + } else { + if (pDevice->IsCmykImage()) { + if (!bObjCMYK) { + return FALSE; + } + } else { + if (bObjCMYK) { + color = _DefaultCMYK2ARGB(color, alpha); + } + } + } + pDevice->SetPixel(x, y, color); + if (pDevice->m_pAlphaMask) { + pDevice->m_pAlphaMask->SetPixel(x, y, alpha << 24); + } + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::SetPixel(int x, + int y, + FX_DWORD color, + int alpha_flag, + void* pIccTransform) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + if (!CFX_GEModule::Get()->GetCodecModule() || + !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) { + pIccTransform = NULL; + } + if (!m_pClipRgn) { + if (m_bRgbByteOrder) { + RgbByteOrderSetPixel(m_pBitmap, x, y, color); + } else { + return _DibSetPixel(m_pBitmap, x, y, color, alpha_flag, pIccTransform); + } + } else if (m_pClipRgn->GetBox().Contains(x, y)) { + if (m_pClipRgn->GetType() == CFX_ClipRgn::RectI) { + if (m_bRgbByteOrder) { + RgbByteOrderSetPixel(m_pBitmap, x, y, color); + } else { + return _DibSetPixel(m_pBitmap, x, y, color, alpha_flag, pIccTransform); + } + } else if (m_pClipRgn->GetType() == CFX_ClipRgn::MaskF) { + const CFX_DIBitmap* pMask = m_pClipRgn->GetMask(); + FX_BOOL bCMYK = FXGETFLAG_COLORTYPE(alpha_flag); + int new_alpha = + bCMYK ? FXGETFLAG_ALPHA_FILL(alpha_flag) : FXARGB_A(color); + new_alpha = new_alpha * pMask->GetScanline(y)[x] / 255; + if (m_bRgbByteOrder) { + RgbByteOrderSetPixel(m_pBitmap, x, y, + (color & 0xffffff) | (new_alpha << 24)); + return TRUE; + } + if (bCMYK) { + FXSETFLAG_ALPHA_FILL(alpha_flag, new_alpha); + } else { + color = (color & 0xffffff) | (new_alpha << 24); + } + return _DibSetPixel(m_pBitmap, x, y, color, alpha_flag, pIccTransform); + } + } + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::FillRect(const FX_RECT* pRect, + FX_DWORD fill_color, + int alpha_flag, + void* pIccTransform, + int blend_type) { + if (blend_type != FXDIB_BLEND_NORMAL) { + return FALSE; + } + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + FX_RECT clip_rect; + GetClipBox(&clip_rect); + FX_RECT draw_rect = clip_rect; + if (pRect) { + draw_rect.Intersect(*pRect); + } + if (draw_rect.IsEmpty()) { + return TRUE; + } + if (!m_pClipRgn || m_pClipRgn->GetType() == CFX_ClipRgn::RectI) { + if (m_bRgbByteOrder) { + RgbByteOrderCompositeRect(m_pBitmap, draw_rect.left, draw_rect.top, + draw_rect.Width(), draw_rect.Height(), + fill_color); + } else { + m_pBitmap->CompositeRect(draw_rect.left, draw_rect.top, draw_rect.Width(), + draw_rect.Height(), fill_color, alpha_flag, + pIccTransform); + } + return TRUE; + } + m_pBitmap->CompositeMask( + draw_rect.left, draw_rect.top, draw_rect.Width(), draw_rect.Height(), + (const CFX_DIBitmap*)m_pClipRgn->GetMask(), fill_color, + draw_rect.left - clip_rect.left, draw_rect.top - clip_rect.top, + FXDIB_BLEND_NORMAL, NULL, m_bRgbByteOrder, alpha_flag, pIccTransform); + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::GetClipBox(FX_RECT* pRect) { + if (!m_pClipRgn) { + pRect->left = pRect->top = 0; + pRect->right = GetDeviceCaps(FXDC_PIXEL_WIDTH); + pRect->bottom = GetDeviceCaps(FXDC_PIXEL_HEIGHT); + return TRUE; + } + *pRect = m_pClipRgn->GetBox(); + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::GetDIBits(CFX_DIBitmap* pBitmap, + int left, + int top, + void* pIccTransform, + FX_BOOL bDEdge) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + if (bDEdge) { + if (m_bRgbByteOrder) { + RgbByteOrderTransferBitmap(pBitmap, 0, 0, pBitmap->GetWidth(), + pBitmap->GetHeight(), m_pBitmap, left, top); + } else { + return pBitmap->TransferBitmap(0, 0, pBitmap->GetWidth(), + pBitmap->GetHeight(), m_pBitmap, left, top, + pIccTransform); + } + return TRUE; + } + FX_RECT rect(left, top, left + pBitmap->GetWidth(), + top + pBitmap->GetHeight()); + CFX_DIBitmap* pBack = NULL; + if (m_pOriDevice) { + pBack = m_pOriDevice->Clone(&rect); + if (!pBack) { + return TRUE; + } + pBack->CompositeBitmap(0, 0, pBack->GetWidth(), pBack->GetHeight(), + m_pBitmap, 0, 0); + } else { + pBack = m_pBitmap->Clone(&rect); + } + if (!pBack) { + return TRUE; + } + FX_BOOL bRet = TRUE; + left = left >= 0 ? 0 : left; + top = top >= 0 ? 0 : top; + if (m_bRgbByteOrder) { + RgbByteOrderTransferBitmap(pBitmap, 0, 0, rect.Width(), rect.Height(), + pBack, left, top); + } else { + bRet = pBitmap->TransferBitmap(0, 0, rect.Width(), rect.Height(), pBack, + left, top, pIccTransform); + } + delete pBack; + return bRet; +} + +FX_BOOL CFX_AggDeviceDriver::SetDIBits(const CFX_DIBSource* pBitmap, + FX_DWORD argb, + const FX_RECT* pSrcRect, + int left, + int top, + int blend_type, + int alpha_flag, + void* pIccTransform) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + if (pBitmap->IsAlphaMask()) + return m_pBitmap->CompositeMask( + left, top, pSrcRect->Width(), pSrcRect->Height(), pBitmap, argb, + pSrcRect->left, pSrcRect->top, blend_type, m_pClipRgn, m_bRgbByteOrder, + alpha_flag, pIccTransform); + return m_pBitmap->CompositeBitmap( + left, top, pSrcRect->Width(), pSrcRect->Height(), pBitmap, pSrcRect->left, + pSrcRect->top, blend_type, m_pClipRgn, m_bRgbByteOrder, pIccTransform); +} + +FX_BOOL CFX_AggDeviceDriver::StretchDIBits(const CFX_DIBSource* pSource, + FX_DWORD argb, + int dest_left, + int dest_top, + int dest_width, + int dest_height, + const FX_RECT* pClipRect, + FX_DWORD flags, + int alpha_flag, + void* pIccTransform, + int blend_type) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + if (dest_width == pSource->GetWidth() && + dest_height == pSource->GetHeight()) { + FX_RECT rect(0, 0, dest_width, dest_height); + return SetDIBits(pSource, argb, &rect, dest_left, dest_top, blend_type, + alpha_flag, pIccTransform); + } + FX_RECT dest_rect(dest_left, dest_top, dest_left + dest_width, + dest_top + dest_height); + dest_rect.Normalize(); + FX_RECT dest_clip = dest_rect; + dest_clip.Intersect(*pClipRect); + CFX_BitmapComposer composer; + composer.Compose(m_pBitmap, m_pClipRgn, 255, argb, dest_clip, FALSE, FALSE, + FALSE, m_bRgbByteOrder, alpha_flag, pIccTransform, + blend_type); + dest_clip.Offset(-dest_rect.left, -dest_rect.top); + CFX_ImageStretcher stretcher; + if (stretcher.Start(&composer, pSource, dest_width, dest_height, dest_clip, + flags)) { + stretcher.Continue(NULL); + } + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::StartDIBits(const CFX_DIBSource* pSource, + int bitmap_alpha, + FX_DWORD argb, + const CFX_Matrix* pMatrix, + FX_DWORD render_flags, + void*& handle, + int alpha_flag, + void* pIccTransform, + int blend_type) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + CFX_ImageRenderer* pRenderer = new CFX_ImageRenderer; + pRenderer->Start(m_pBitmap, m_pClipRgn, pSource, bitmap_alpha, argb, pMatrix, + render_flags, m_bRgbByteOrder, alpha_flag, pIccTransform); + handle = pRenderer; + return TRUE; +} + +FX_BOOL CFX_AggDeviceDriver::ContinueDIBits(void* pHandle, IFX_Pause* pPause) { + if (!m_pBitmap->GetBuffer()) { + return TRUE; + } + return ((CFX_ImageRenderer*)pHandle)->Continue(pPause); +} + +void CFX_AggDeviceDriver::CancelDIBits(void* pHandle) { + if (!m_pBitmap->GetBuffer()) { + return; + } + delete (CFX_ImageRenderer*)pHandle; +} + +CFX_FxgeDevice::CFX_FxgeDevice() { + m_bOwnedBitmap = FALSE; +} + +bool CFX_FxgeDevice::Attach(CFX_DIBitmap* pBitmap, + int dither_bits, + bool bRgbByteOrder, + CFX_DIBitmap* pOriDevice, + bool bGroupKnockout) { + if (!pBitmap) { + return false; + } + SetBitmap(pBitmap); + IFX_RenderDeviceDriver* pDriver = new CFX_AggDeviceDriver( + pBitmap, dither_bits, bRgbByteOrder, pOriDevice, bGroupKnockout); + SetDeviceDriver(pDriver); + return true; +} + +bool CFX_FxgeDevice::Create(int width, + int height, + FXDIB_Format format, + int dither_bits, + CFX_DIBitmap* pOriDevice) { + m_bOwnedBitmap = true; + CFX_DIBitmap* pBitmap = new CFX_DIBitmap; + if (!pBitmap->Create(width, height, format)) { + delete pBitmap; + return false; + } + SetBitmap(pBitmap); + IFX_RenderDeviceDriver* pDriver = + new CFX_AggDeviceDriver(pBitmap, dither_bits, FALSE, pOriDevice, FALSE); + SetDeviceDriver(pDriver); + return true; +} + +CFX_FxgeDevice::~CFX_FxgeDevice() { + if (m_bOwnedBitmap) { + delete GetBitmap(); + } +} |