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author | John Abd-El-Malek <jam@chromium.org> | 2014-06-11 13:34:16 -0700 |
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committer | John Abd-El-Malek <jam@chromium.org> | 2014-06-11 13:34:16 -0700 |
commit | 3084c79dce15a41c056d4e5c634e09010e7323e0 (patch) | |
tree | a1a4ba6a567b0688f257af318eeb1049b0030886 /core/src/fxge/skia/fx_skia_blitter_new.cpp | |
parent | d7d52f1b359458d5c90b182af68168bd9349f335 (diff) | |
download | pdfium-3084c79dce15a41c056d4e5c634e09010e7323e0.tar.xz |
Bring back the Skia files from the old repo.
BUG=11
Diffstat (limited to 'core/src/fxge/skia/fx_skia_blitter_new.cpp')
-rw-r--r-- | core/src/fxge/skia/fx_skia_blitter_new.cpp | 1606 |
1 files changed, 1606 insertions, 0 deletions
diff --git a/core/src/fxge/skia/fx_skia_blitter_new.cpp b/core/src/fxge/skia/fx_skia_blitter_new.cpp new file mode 100644 index 0000000000..5ba6e8a20f --- /dev/null +++ b/core/src/fxge/skia/fx_skia_blitter_new.cpp @@ -0,0 +1,1606 @@ +#include "../../../include/fxge/fx_ge.h" +//#define _SKIA_SUPPORT_ +#if defined(_SKIA_SUPPORT_) +#include "../../../include/fxcodec/fx_codec.h" +#include "SkBlitter.h" +#include "fx_skia_blitter_new.h" + // We use our own renderer here to make it simple + void CFX_SkiaRenderer::blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) + { + FXSYS_assert(m_Alpha); + if (m_pOriDevice == NULL && composite_span == NULL) return; + if (y < m_ClipBox.top || y >= m_ClipBox.bottom) return; + while (1) + { + int width = runs[0]; + SkASSERT(width >= 0); + if (width <= 0) + return; + unsigned aa = antialias[0]; + if (aa) + (this->*composite_span)(m_pDestScan, m_pOriScan, 0, x, width, y, aa, m_ClipBox.top, m_ClipBox.left, m_ClipBox.right, m_pClipScan, m_pDestExtraAlphaScan); + runs += width; + antialias += width; + x += width; + } + } + + void CFX_SkiaRenderer::blitH(int x, int y, int width) + { + FXSYS_assert(m_Alpha && width); + if (y < m_ClipBox.top || y >= m_ClipBox.bottom) return; + (this->*composite_span)(m_pDestScan, m_pOriScan, 0, x, width, y, 255, m_ClipBox.top, m_ClipBox.left, m_ClipBox.right, m_pClipScan, m_pDestExtraAlphaScan); + } + + void CFX_SkiaRenderer::blitV(int x, int y, int height, SkAlpha alpha) + { + FXSYS_assert(m_Alpha && alpha); + if (alpha == 255) { + this->blitRect(x, y, 1, height); + } else { + int16_t runs[2]; + runs[0] = 1; + runs[1] = 0; + while (--height >= 0) { + if (y >= m_ClipBox.bottom) + return; + this->blitAntiH(x, y ++, &alpha, runs); + } + } + } + void CFX_SkiaRenderer::blitRect(int x, int y, int width, int height) + { + FXSYS_assert(m_Alpha && width); + while (--height >= 0){ + if (y >= m_ClipBox.bottom) + return; + blitH(x, y ++, width); + } + } + + void CFX_SkiaRenderer::blitAntiRect(int x, int y, int width, int height, + SkAlpha leftAlpha, SkAlpha rightAlpha) + { + blitV(x++, y, height, leftAlpha); + if (width > 0) { + blitRect(x, y, width, height); + x += width; + } + blitV(x, y, height, rightAlpha); + } + /*---------------------------------------------------------------------------------------------------*/ + void CFX_SkiaRenderer::CompositeSpan1bpp_0(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_bRgbByteOrder); + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left/8; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start/8; + + int index = 0; + if (m_pDevice->GetPalette() == NULL) + index = ((FX_BYTE)m_Color == 0xff) ? 1 : 0; + else { + for (int i = 0; i < 2; i ++) + if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) + index = i; + } + FX_LPBYTE dest_scan1 = dest_scan; + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + 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 CFX_SkiaRenderer::CompositeSpan1bpp_4(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_bRgbByteOrder); + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left/8; + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start/8; + + int index = 0; + if (m_pDevice->GetPalette() == NULL) + index = ((FX_BYTE)m_Color == 0xff) ? 1 : 0; + else { + for (int i = 0; i < 2; i ++) + if (FXARGB_TODIB(m_pDevice->GetPalette()[i]) == m_Color) + index = i; + } + FX_LPBYTE dest_scan1 = dest_scan; + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (src_alpha1) { + 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 CFX_SkiaRenderer::CompositeSpanGray_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + ASSERT(!m_bRgbByteOrder); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start; + if (cover_scan == 255 && m_Alpha == 255) { + FXSYS_memset32(dest_scan, FXARGB_MAKE(m_Gray, m_Gray, m_Gray, m_Gray), col_end - col_start); + return; + } + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha); + dest_scan++; + } + } + void CFX_SkiaRenderer::CompositeSpanGray_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + ASSERT(!m_bRgbByteOrder); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start; + ori_scan += col_start; + if (m_Alpha == 255 && cover_scan == 255) { + FXSYS_memset32(dest_scan, FXARGB_MAKE(m_Gray, m_Gray, m_Gray, m_Gray), col_end - col_start); + } else { + int src_alpha = m_Alpha; +#if 1 + for (int col = col_start; col < col_end; col ++) { + int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); + dest_scan ++; + } +#else + if (m_bFullCover) { + if (src_alpha == 255) { + FXSYS_memset(dest_scan, FXARGB_MAKE(m_Gray, m_Gray, m_Gray, m_Gray), col_end - col_start); + return; + } + for (int col = col_start; col < col_end; col ++) + *dest_scan = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + } else { + for (int col = col_start; col < col_end; col ++) { + int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); + dest_scan++; + } + } +#endif + } + } + + void CFX_SkiaRenderer::CompositeSpanGray_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_bRgbByteOrder); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start; + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan ++; + continue; + } + if (src_alpha1 == 255) + *dest_scan++ = m_Gray; + else { + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Gray, src_alpha1); + dest_scan ++; + } + } + } + + void CFX_SkiaRenderer::CompositeSpanGray_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left; + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left; + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start; + ori_scan += col_start; +#if 1 + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *dest_scan++ = m_Gray; + ori_scan++; + continue; + } + int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); + dest_scan++; + } + +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + dest_scan++; + ori_scan++; + continue; + } + if (src_alpha == 255){ + *dest_scan++ = m_Gray; + ori_scan++; + continue; + } + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + } + } else { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *dest_scan++ = m_Gray; + ori_scan++; + continue; + } + int gray = FXDIB_ALPHA_MERGE(*ori_scan++, m_Gray, src_alpha); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, gray, cover_scan); + dest_scan++; + } + } +#endif + } + /*--------------------------------------------------------------------------------------------------*/ + + void CFX_SkiaRenderer::CompositeSpanARGB_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start<<2; + if (m_Alpha == 255 && cover_scan == 255) { + FXSYS_memset32(dest_scan, m_Color, (col_end - col_start)<<2); + return; + } + int src_alpha; +#if 0 + if (m_bFullCover) { + if (m_Alpha == 255) { + FXSYS_memset32(dest_scan, m_Color, (col_end - col_start)<<2); + return; + } + } + else +#endif + src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + // Dest format: Argb + // calculate destination alpha (it's union of source and dest alpha) + 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; + } + FX_BYTE 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; + } + } + + void CFX_SkiaRenderer::CompositeSpanARGB_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + //ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left<<2); + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; + //ori_scan += col_start << 2; + + if (m_Alpha == 255 && cover_scan == 255){ + FXSYS_memset32(dest_scan, m_Color, (col_end - col_start)<<2); + return; + } + if (cover_scan == 255) { + int dst_color = (0x00ffffff&m_Color)|(m_Alpha<<24); + FXSYS_memset32(dest_scan, dst_color, (col_end - col_start)<<2); + return; + } + // Do not need origin bitmap, because of merge in pure transparent background + int src_alpha_covered = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) + { + // shortcut + 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; + } + // We should do alpha transition and color transition + // alpha fg color fg + // alpha bg color bg + // alpha cover color cover + dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], m_Alpha, cover_scan); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover_scan); + dest_scan += 2; + } + } + void CFX_SkiaRenderer::CompositeSpanARGB_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; +#if 1 + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha* clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 4; + continue; + } + if (src_alpha1 == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + } else { + // Dest format: Argb + // calculate destination alpha (it's union of source and dest alpha) + if (dest_scan[3] == 0) { + dest_scan[3] = src_alpha1; + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } + FX_BYTE dest_alpha = dest_scan[3] + src_alpha1 - dest_scan[3] * src_alpha1 / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha1*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; + } + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + dest_scan += 4; + continue; + } + if (src_alpha == 255){ + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + continue; + } else { + // Dest format: Argb + // calculate destination alpha (it's union of source and dest alpha) + 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; + } + FX_BYTE 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; + } + } + } else { + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha* clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 4; + continue; + } + if (src_alpha1 == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + } else { + // Dest format: Argb + // calculate destination alpha (it's union of source and dest alpha) + if (dest_scan[3] == 0) { + dest_scan[3] = src_alpha1; + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } + FX_BYTE dest_alpha = dest_scan[3] + src_alpha1 - dest_scan[3] * src_alpha1 / 255; + dest_scan[3] = dest_alpha; + int alpha_ratio = src_alpha1*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; + } + } + } +#endif + } + + void CFX_SkiaRenderer::CompositeSpanARGB_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + //ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left<<2); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; + //ori_scan += col_start << 2; + // Do not need origin bitmap, because of merge in pure transparent background + for (int col = col_start; col < col_end; col ++) + { + int src_alpha = m_Alpha * clip_scan[col] / 255; + int src_alpha_covered = src_alpha * cover_scan / 255; + // shortcut + if (src_alpha_covered == 0){ + dest_scan += 4; + continue; + } + // shortcut + if (cover_scan == 255 || dest_scan[3] == 0) + { + // origin alpha always zero, just get src alpha + dest_scan[3] = src_alpha_covered; + *dest_scan ++ = m_Blue; + *dest_scan ++ = m_Green; + *dest_scan = m_Red; + dest_scan += 2; + continue; + } + // We should do alpha transition and color transition + // alpha fg color fg + // alpha bg color bg + // alpha cover color cover + dest_scan[3] = FXDIB_ALPHA_MERGE(dest_scan[3], src_alpha, cover_scan); + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, cover_scan); + dest_scan += 2; + } + } + + /*-----------------------------------------------------------------------------------------------------------*/ + void CFX_SkiaRenderer::CompositeSpanRGB32_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + 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 (col_end < col_start) return; // do nothing. + dest_scan += (col_start << 2); + if (m_Alpha == 255 && cover_scan == 255) { + FXSYS_memset32(dest_scan, m_Color, (col_end - col_start)<<2); + return; + } + int src_alpha; +#if 0 + if (m_bFullCover) + src_alpha = m_Alpha; + else +#endif + src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + // Dest format: Rgb32 + *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 += 2; + } + } + void CFX_SkiaRenderer::CompositeSpanRGB32_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left<<2); + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; + ori_scan += col_start << 2; + if (m_Alpha == 255 && cover_scan == 255) { + FXSYS_memset32(dest_scan, m_Color, (col_end - col_start)<<2); + return; + } + int src_alpha = m_Alpha; + for (int col = col_start; col < col_end; col ++) { +#if 0 + 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 += 2; ori_scan += 2; + continue; + } +#endif + 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 += 2; + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan += 2; + } + } + void CFX_SkiaRenderer::CompositeSpanRGB32_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; +#if 1 + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 4; + continue; + } + if (src_alpha1 == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + } else { + // Dest format: Rgb or Rgb32 + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); + dest_scan += 2; + } + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + dest_scan += 4; + continue; + } + if (src_alpha == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + } else { + // Dest format: Rgb or Rgb32 + *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 += 2; + } + } + } else { + // Rgb32 + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 4; + continue; + } + if (src_alpha1 == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + } else { + // Dest format: Rgb or Rgb32 + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); + dest_scan += 2; + } + } + } +#endif + } + void CFX_SkiaRenderer::CompositeSpanRGB32_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + (span_left<<2); + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + (span_left<<2); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start << 2; + ori_scan += col_start << 2; +#if 1 + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + ori_scan += 4; + 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 += 2; + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan += 2; + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + *(FX_DWORD*)dest_scan = *(FX_DWORD*)ori_scan; + dest_scan += 4; + ori_scan += 4; + continue; + } + if (src_alpha == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + ori_scan += 4; + continue; + } + *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 += 2; ori_scan += 2; + } + } else { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *(FX_DWORD*)dest_scan = m_Color; + dest_scan += 4; + ori_scan += 4; + 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 += 2; + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan += 2; + } + } +#endif + } + /*-----------------------------------------------------------------------------------------------------*/ + void CFX_SkiaRenderer::CompositeSpanRGB24_2(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_left<<1); + 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 (col_end < col_start) return; // do nothing. + dest_scan += (col_start<<1)+col_start; + int src_alpha; +#if 0 + if (m_bFullCover) + src_alpha = m_Alpha; + else +#endif + src_alpha = m_Alpha * cover_scan / 255; + if (src_alpha == 255) { + for (int col = col_start; col < col_end; col ++) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + } + return; + } + for (int col = col_start; col < col_end; col ++) { + *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 ++; + } + } + void CFX_SkiaRenderer::CompositeSpanRGB24_3(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left + (span_left<<1); + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left + (span_left<<1); + 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 (col_end < col_start) return; // do nothing. + dest_scan += (col_start<<1) + col_start; + ori_scan += (col_start<<1) + col_start; + if (m_Alpha == 255&&cover_scan == 255) { + for (int col = col_start; col < col_end; col ++) { + *dest_scan ++ = m_Blue; + *dest_scan ++ = m_Green; + *dest_scan ++ = m_Red; + } + return; + } + for (int col = col_start; col < col_end; col ++) { +#if 0 + if (m_bFullCover) { + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, m_Alpha); + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, m_Alpha); + *dest_scan++ = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, m_Alpha); + continue; + } +#endif + int b = FXDIB_ALPHA_MERGE(*ori_scan++, m_Blue, m_Alpha); + int g = FXDIB_ALPHA_MERGE(*ori_scan++, m_Green, m_Alpha); + int r = FXDIB_ALPHA_MERGE(*ori_scan++, m_Red, m_Alpha); + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan ++; + } + } + void CFX_SkiaRenderer::CompositeSpanRGB24_6(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left+(span_left<<1); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start + (col_start << 1); +#if 1 + int src_alpha = m_Alpha * cover_scan /255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 3; + continue; + } + if (src_alpha1 == 255) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + } else { + // Dest format: Rgb + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); + dest_scan ++; + } + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + dest_scan += 3; + continue; + } + if (src_alpha == 255) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + } else { + // Dest format: Rgb + *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 ++; + } + } + } else { + int src_alpha = m_Alpha * cover_scan /255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_scan += 3; + continue; + } + if (src_alpha1 == 255) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + } else { + // Dest format: Rgb + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Blue, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Green, src_alpha1); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, m_Red, src_alpha1); + dest_scan ++; + } + } + } +#endif + } + void CFX_SkiaRenderer::CompositeSpanRGB24_7(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_pDevice->IsCmykImage()); + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left+(span_left<<1); + ori_scan = (FX_BYTE*)m_pOriDevice->GetScanline(span_top) + span_left+(span_left<<1); + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start + (col_start<<1); + ori_scan += col_start + (col_start<<1); +#if 1 + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + ori_scan += 3; + 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); + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan ++; + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha){ + *dest_scan++ = *ori_scan++; + *dest_scan++ = *ori_scan++; + *dest_scan++ = *ori_scan++; + continue; + } + if (src_alpha == 255){ + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + ori_scan += 3; + continue; + } + *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); + } + } else { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (src_alpha == 255 && cover_scan == 255) { + *dest_scan++ = m_Blue; + *dest_scan++ = m_Green; + *dest_scan++ = m_Red; + ori_scan += 3; + 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); + *dest_scan = FXDIB_ALPHA_MERGE( *dest_scan, b, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, g, cover_scan); + dest_scan ++; + *dest_scan = FXDIB_ALPHA_MERGE(*dest_scan, r, cover_scan); + dest_scan ++; + } + } +#endif + } + void CFX_SkiaRenderer::CompositeSpanRGB24_10(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left+(span_left<<1); + dest_extra_alpha_scan = (FX_BYTE*)m_pDevice->m_pAlphaMask->GetScanline(span_top)+span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start+(col_start<<1); +#if 1 + if (m_Alpha == 255 && cover_scan == 255) { + for (int col = col_start; col < col_end; col ++) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = 255; + } + return; + } + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE 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 ++; + } +#else + if (m_bFullCover) { + if (m_Alpha == 255) { + for (int col = col_start; col < col_end; col ++) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = 255; + } + return; + } + for (int col = col_start; col < col_end; col ++) { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + m_Alpha - + (*dest_extra_alpha_scan) * m_Alpha / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = m_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 ++; + } + } else { + if (m_Alpha == 255 && cover_scan == 255) { + for (int col = col_start; col < col_end; col ++) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = 255; + } + return; + } + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE 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 ++; + } + } +#endif + } + void CFX_SkiaRenderer::CompositeSpanRGB24_14(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + dest_scan = (FX_BYTE*)m_pDevice->GetScanline(span_top) + span_left+(span_left<<1); + dest_extra_alpha_scan = (FX_BYTE*)m_pDevice->m_pAlphaMask->GetScanline(span_top)+span_left; + clip_scan = (FX_BYTE*)m_pClipMask->GetScanline(span_top-clip_top) - clip_left + span_left; + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start + (col_start << 1); +#if 1 + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = src_alpha * clip_scan[col] / 255; + if (!src_alpha1) { + dest_extra_alpha_scan++; + dest_scan += 3; + continue; + } + if (src_alpha1 == 255) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = (FX_BYTE)m_Alpha; + } else { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + src_alpha1 - + (*dest_extra_alpha_scan) * src_alpha1 / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = src_alpha1*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 ++; + } + } +#else + if (m_bFullCover) { + for (int col = col_start; col < col_end; col ++) { + int src_alpha = m_Alpha * clip_scan[col] / 255; + if (!src_alpha) { + dest_extra_alpha_scan++; + dest_scan += 3; + continue; + } + if (src_alpha == 255) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = (FX_BYTE)m_Alpha; + } else { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE 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 ++; + } + } + } else { + int src_alpha = m_Alpha * cover_scan / 255; + for (int col = col_start; col < col_end; col ++) { + int src_alpha1 = m_Alpha * cover_scan * clip_scan[col] / 255; + if (!src_alpha1) { + dest_extra_alpha_scan++; + dest_scan += 3; + continue; + } + if (src_alpha1 == 255) { + *dest_scan++ = (FX_BYTE)m_Blue; + *dest_scan++ = (FX_BYTE)m_Green; + *dest_scan++ = (FX_BYTE)m_Red; + *dest_extra_alpha_scan++ = (FX_BYTE)m_Alpha; + } else { + // Dest format: Rgba + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE dest_alpha = (*dest_extra_alpha_scan) + src_alpha1 - + (*dest_extra_alpha_scan) * src_alpha1 / 255; + *dest_extra_alpha_scan++ = dest_alpha; + int alpha_ratio = src_alpha1*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 ++; + } + } + } +#endif + } + /*-----------------------------------------------------------------------------------------------------*/ + + // A general alpha merge function (with clipping mask). Cmyka/Cmyk device. + void CFX_SkiaRenderer::CompositeSpanCMYK(FX_LPBYTE dest_scan, FX_LPBYTE ori_scan,int Bpp, + int span_left, int span_len, int span_top, FX_BYTE cover_scan, + int clip_top, int clip_left, int clip_right, FX_LPBYTE clip_scan, + FX_LPBYTE dest_extra_alpha_scan) + { + ASSERT(!m_bRgbByteOrder); + // Cmyk(a) + 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 (col_end < col_start) return; // do nothing. + dest_scan += col_start * 4; + Bpp; // for avoid compile warning. + + if (dest_extra_alpha_scan) { + // CMYKa + 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 * clip_scan[col] / 255 / 255; + else + src_alpha = m_Alpha * cover_scan / 255; + } + + if (src_alpha) { + if (src_alpha == 255) { + *(FX_CMYK*)dest_scan = m_Color; + *dest_extra_alpha_scan = (FX_BYTE)m_Alpha; + } else { + // Dest format: Cmyka + // calculate destination alpha (it's union of source and dest alpha) + FX_BYTE 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 { + // CMYK + for (int col = col_start; col < col_end; col ++) { + int src_alpha; + if (clip_scan) + src_alpha = m_Alpha * cover_scan * clip_scan[col] / 255 / 255; + else + src_alpha = m_Alpha * cover_scan / 255; + + if (src_alpha) { + if (src_alpha == 255) { + *(FX_CMYK*)dest_scan = m_Color; + } else { + // Dest format: cmyk + *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; + } + } + } + + + + //-------------------------------------------------------------------- + FX_BOOL CFX_SkiaRenderer::Init(CFX_DIBitmap* pDevice, CFX_DIBitmap* pOriDevice, const CFX_ClipRgn* pClipRgn, FX_DWORD color, FX_BOOL bFullCover, FX_BOOL bRgbByteOrder, + int alpha_flag, void* pIccTransform) //The alpha flag must be fill_flag if exist. + { + m_pDevice = pDevice; + m_pClipRgn = pClipRgn; + m_bRgbByteOrder = bRgbByteOrder; + m_pOriDevice = pOriDevice; + m_pDestScan = NULL; + m_pDestExtraAlphaScan = NULL; + m_pOriScan = NULL; + m_pClipScan = NULL; + composite_span = NULL; + 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_pClipScan = m_pClipMask->GetBuffer(); + } + if (m_pDevice->m_pAlphaMask) + m_pDestExtraAlphaScan = m_pDevice->m_pAlphaMask->GetBuffer(); + if (m_pOriDevice) + m_pOriScan = m_pOriDevice->GetBuffer(); + m_pDestScan = m_pDevice->GetBuffer(); + + 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; + // No lcms engine, we skip the transform + if (!CFX_GEModule::Get()->GetCodecModule() || !CFX_GEModule::Get()->GetCodecModule()->GetIccModule()) + pIccTransform = NULL; + else + pIccModule = CFX_GEModule::Get()->GetCodecModule()->GetIccModule(); + + if (m_pDevice->GetBPP() == 8) { // Gray(a) device + ASSERT(!m_bRgbByteOrder); + if (m_pDevice->IsAlphaMask()) { + //Alpha Mask + m_Gray = 255; + } else { + //Gray(a) device + if (pIccTransform) { + FX_BYTE gray; + color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, &gray, (FX_LPCBYTE)&color, 1); + m_Gray = gray; + } else { + if (bObjectCMYK) { + FX_BYTE 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)); + } + } + } + } else { + if (bDeviceCMYK) { // Cmyk(a) Device + ASSERT(!m_bRgbByteOrder); + //TODO... opt for cmyk + composite_span = &CFX_SkiaRenderer::CompositeSpanCMYK; + if (bObjectCMYK) { + m_Color = FXCMYK_TODIB(color); + if (pIccTransform) + pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_Color, (FX_LPCBYTE)&m_Color, 1); + } else { // Object RGB + if (!pIccTransform) + return FALSE; + color = FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_Color, (FX_LPCBYTE)&color, 1); + } + m_Red = ((FX_LPBYTE)&m_Color)[0]; + m_Green = ((FX_LPBYTE)&m_Color)[1]; + m_Blue = ((FX_LPBYTE)&m_Color)[2]; + m_Gray = ((FX_LPBYTE)&m_Color)[3]; + return TRUE; + } else { + if (pIccTransform) { + color = bObjectCMYK ? FXCMYK_TODIB(color) : FXARGB_TODIB(color); + pIccModule->TranslateScanline(pIccTransform, (FX_LPBYTE)&m_Color, (FX_LPCBYTE)&color, 1); + ((FX_LPBYTE)&m_Color)[3] = m_Alpha; + m_Red = ((FX_LPBYTE)&m_Color)[2]; + m_Green = ((FX_LPBYTE)&m_Color)[1]; + m_Blue = ((FX_LPBYTE)&m_Color)[0]; + // Need Johnson to improvement it. + if (m_bRgbByteOrder) { + // swap + m_Red = ((FX_LPBYTE)&m_Color)[0]; + m_Blue = ((FX_LPBYTE)&m_Color)[2]; + m_Color = FXARGB_TODIB(m_Color); + m_Color = FXARGB_TOBGRORDERDIB(m_Color); + } + } else { + if (bObjectCMYK) { + FX_BYTE 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); + m_Red = b; m_Green = g; m_Blue = r;// + }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); + ArgbDecode(color, m_Alpha, m_Blue, m_Green, m_Red); // + }else { + m_Color = FXARGB_TODIB(color); + ArgbDecode(color, m_Alpha, m_Red, m_Green, m_Blue); + } + } + } + } + } + // Get palette transparency selector + m_ProcessFilter = (m_pOriDevice? 1 : 0) /* has Ori Device flag */ + + (m_pDevice->GetBPP() >= 8 ? 2 : 0) /* bpp flag */ + + (m_pClipMask? 4 : 0) /* has clip region flag */ + + (m_pDevice->m_pAlphaMask? 8 : 0); /* has Alpha Mask chanel flag */ + switch(m_ProcessFilter) { + case 0: + composite_span = &CFX_SkiaRenderer::CompositeSpan1bpp_0; + break; + case 2: + { + if (m_pDevice->GetBPP() == 8) + composite_span = &CFX_SkiaRenderer::CompositeSpanGray_2; + else if (m_pDevice->GetBPP() == 24) + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_2; + else + composite_span = m_pDevice->HasAlpha()?&CFX_SkiaRenderer::CompositeSpanARGB_2 : &CFX_SkiaRenderer::CompositeSpanRGB32_2; + } + break; + case 3: + { + if (m_pDevice->GetBPP() == 8) + composite_span = &CFX_SkiaRenderer::CompositeSpanGray_3; + else if (m_pDevice->GetBPP() == 24) + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_3; + else + composite_span = m_pDevice->HasAlpha()?&CFX_SkiaRenderer::CompositeSpanARGB_3 : &CFX_SkiaRenderer::CompositeSpanRGB32_3; + } + break; + case 4: + composite_span = &CFX_SkiaRenderer::CompositeSpan1bpp_4; + break; + case 6: + { + if (m_pDevice->GetBPP() == 8) + composite_span = &CFX_SkiaRenderer::CompositeSpanGray_6; + else if (m_pDevice->GetBPP() == 24) + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_6; + else + composite_span = m_pDevice->HasAlpha()?&CFX_SkiaRenderer::CompositeSpanARGB_6 : &CFX_SkiaRenderer::CompositeSpanRGB32_6; + } + break; + case 7: + { + if (m_pDevice->GetBPP() == 8) + composite_span = &CFX_SkiaRenderer::CompositeSpanGray_7; + else if (m_pDevice->GetBPP() == 24) + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_7; + else + composite_span = m_pDevice->HasAlpha()?&CFX_SkiaRenderer::CompositeSpanARGB_7 : &CFX_SkiaRenderer::CompositeSpanRGB32_7; + } + break; + case 1: + case 5: + case 8: + case 9: + case 11: + case 12: + case 13: + case 15: + //TODO... + break; + case 10: + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_10; + break; + case 14: + composite_span = &CFX_SkiaRenderer::CompositeSpanRGB24_14; + break; + } + if (composite_span == NULL) + return FALSE; + return TRUE; + } + + /*----------------------------------------------------------------------------------------------------*/ + void CFX_SkiaA8Renderer::blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) + { + FXSYS_assert(m_pDevice); + int dst_y = y - m_Top; + if (dst_y < 0 || dst_y >= m_pDevice->GetHeight()) + return; + + FX_LPBYTE dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * dst_y; + FX_LPBYTE dest_pos = dest_scan; + while (1) + { + if (x >= m_dstWidth) + return; + int width = runs[0]; + SkASSERT(width >= 0); + if (width <= 0) + return; + unsigned aa = antialias[0]; + if (aa) { + int col_start = x < m_Left ? 0 : x - m_Left; + int col_end = x + width; + col_end = col_end < m_dstWidth ? col_end - m_Left: m_pDevice->GetWidth(); + int result = col_end - col_start; + if (result > 0) { + dest_pos = dest_scan + col_start; + if (result >= 4) + FXSYS_memset32(dest_pos, FXARGB_MAKE(aa, aa, aa, aa),result); + else + FXSYS_memset(dest_pos,aa,result); + } + } + runs += width; + antialias += width; + x += width; + } + } + void CFX_SkiaA8Renderer::blitH(int x, int y, int width) + { + FXSYS_assert(m_pDevice); + int dst_y = y - m_Top; + if (dst_y < 0 || dst_y >= m_pDevice->GetHeight()) + return; + if (x >= m_dstWidth) + return; + FX_LPBYTE dest_scan = m_pDevice->GetBuffer() + m_pDevice->GetPitch() * dst_y; + int col_start = x < m_Left ? 0 : x - m_Left; + int col_end = x + width; + col_end = col_end < m_dstWidth ? col_end - m_Left: m_pDevice->GetWidth(); + int result = col_end - col_start; + if (result > 0) { + FX_BYTE* dest_pos = dest_scan + col_start; + if (result >= 4) + FXSYS_memset32(dest_pos, 0xffffffff,result); + else + FXSYS_memset(dest_pos,255,result); + } + } + void CFX_SkiaA8Renderer::blitV(int x, int y, int height, SkAlpha alpha) + { + FXSYS_assert(alpha); + if (alpha == 255) { + this->blitRect(x, y, 1, height); + } else { + int16_t runs[2]; + runs[0] = 1; + runs[1] = 0; + while (--height >= 0) { + if (y >= m_dstHeight) + return; + this->blitAntiH(x, y ++, &alpha, runs); + } + } + } + void CFX_SkiaA8Renderer::blitRect(int x, int y, int width, int height) + { + FXSYS_assert(m_pDevice); + while (--height >= 0) { + if (y >= m_dstHeight) + return; + blitH(x , y ++, width); + } + } + + void CFX_SkiaA8Renderer::blitAntiRect(int x, int y, int width, int height, + SkAlpha leftAlpha, SkAlpha rightAlpha) + { + blitV(x++, y, height, leftAlpha); + if (width > 0) { + blitRect(x, y, width, height); + x += width; + } + blitV(x, y, height, rightAlpha); + } + + FX_BOOL CFX_SkiaA8Renderer::Init(CFX_DIBitmap* pDevice, int Left, int Top) + { + m_pDevice = pDevice; + m_Left = Left; + m_Top = Top; + if (pDevice){ + m_dstWidth = m_Left + pDevice->GetWidth(); + m_dstHeight = m_Top + pDevice->GetHeight(); + } + return TRUE; + } +#endif |