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Unified Diff: core/src/fxge/skia/fx_skia_blitter_new.cpp

Issue 402463002: Replace agg with skia (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Fix clang compile error Created 6 years, 5 months ago
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Index: core/src/fxge/skia/fx_skia_blitter_new.cpp
diff --git a/core/src/fxge/skia/fx_skia_blitter_new.cpp b/core/src/fxge/skia/fx_skia_blitter_new.cpp
deleted file mode 100644
index a107485d72164060f65ec52f0ab8e48f5ce7e6e2..0000000000000000000000000000000000000000
--- a/core/src/fxge/skia/fx_skia_blitter_new.cpp
+++ /dev/null
@@ -1,1610 +0,0 @@
-// Copyright 2014 PDFium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#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
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