示例#1
0
        protected override void RenderSolidSingleScanLine(IImageByte destImage, IScanlineCache scanLineCache, Color color)
        {
            int          y            = scanLineCache.y();
            int          num_spans    = scanLineCache.num_spans();
            ScanlineSpan scanlineSpan = scanLineCache.begin();

            byte[] ManagedCoversArray = scanLineCache.GetCovers();
            for (; ;)
            {
                int x          = scanlineSpan.x;
                int num_pix    = scanlineSpan.len;
                int coverIndex = scanlineSpan.cover_index;

                do
                {
                    int a = (ManagedCoversArray[coverIndex++] * color.Alpha0To255) >> 8;
                    m_square.draw(destImage.NewGraphics2D().Rasterizer, m_sl, destImage,
                                  new Color(color.Red0To255, color.Green0To255, color.Blue0To255, a),
                                  x, y);
                    ++x;
                }while (--num_pix > 0);
                if (--num_spans == 0)
                {
                    break;
                }
                scanlineSpan = scanLineCache.GetNextScanlineSpan();
            }
        }
示例#2
0
		protected override void RenderSolidSingleScanLine(IImageByte destImage, IScanlineCache scanLineCache, RGBA_Bytes color)
		{
			int y = scanLineCache.y();
			int num_spans = scanLineCache.num_spans();
			ScanlineSpan scanlineSpan = scanLineCache.begin();

			byte[] ManagedCoversArray = scanLineCache.GetCovers();
			for (; ; )
			{
				int x = scanlineSpan.x;
				int num_pix = scanlineSpan.len;
				int coverIndex = scanlineSpan.cover_index;

				do
				{
					int a = (ManagedCoversArray[coverIndex++] * color.Alpha0To255) >> 8;
					m_square.draw(destImage.NewGraphics2D().Rasterizer, m_sl, destImage,
									new RGBA_Bytes(color.Red0To255, color.Green0To255, color.Blue0To255, a),
									x, y);
					++x;
				}
				while (--num_pix > 0);
				if (--num_spans == 0) break;
				scanlineSpan = scanLineCache.GetNextScanlineSpan();
			}
		}
示例#3
0
        private void GenerateAndRenderSingleScanline(IScanlineCache scanLineCache, IImageFloat destImageFloat, span_allocator alloc, ISpanGeneratorFloat span_gen)
        {
            int          y            = scanLineCache.y();
            int          num_spans    = scanLineCache.num_spans();
            ScanlineSpan scanlineSpan = scanLineCache.begin();

            byte[] ManagedCoversArray = scanLineCache.GetCovers();
            for (; ;)
            {
                int x   = scanlineSpan.x;
                int len = scanlineSpan.len;
                if (len < 0)
                {
                    len = -len;
                }

                if (tempSpanColorsFloats.Capacity() < len)
                {
                    tempSpanColorsFloats.Capacity(len);
                }

                span_gen.generate(tempSpanColorsFloats.Array, 0, x, y, len);
                bool useFirstCoverForAll = scanlineSpan.len < 0;
                destImageFloat.blend_color_hspan(x, y, len, tempSpanColorsFloats.Array, 0, ManagedCoversArray, scanlineSpan.cover_index, useFirstCoverForAll);

                if (--num_spans == 0)
                {
                    break;
                }
                scanlineSpan = scanLineCache.GetNextScanlineSpan();
            }
        }
示例#4
0
        private void RenderSolidSingleScanLine(IImageFloat destImage, IScanlineCache scanLine, RGBA_Floats color)
        {
            int          y            = scanLine.y();
            int          num_spans    = scanLine.num_spans();
            ScanlineSpan scanlineSpan = scanLine.begin();

            byte[] ManagedCoversArray = scanLine.GetCovers();
            for (; ;)
            {
                int x = scanlineSpan.x;
                if (scanlineSpan.len > 0)
                {
                    destImage.blend_solid_hspan(x, y, scanlineSpan.len, color, ManagedCoversArray, scanlineSpan.cover_index);
                }
                else
                {
                    int x2 = (x - (int)scanlineSpan.len - 1);
                    destImage.blend_hline(x, y, x2, color, ManagedCoversArray[scanlineSpan.cover_index]);
                }
                if (--num_spans == 0)
                {
                    break;
                }
                scanlineSpan = scanLine.GetNextScanlineSpan();
            }
        }
示例#5
0
        //================================================render_scanline_aa_solid
        private static void RenderSolidSingleScanLine(IPixelFormat pixFormat, IScanlineCache scanLine, RGBA_Bytes color)
        {
#if use_timers
            render_scanline_aa_solidTimer.Start();
#endif
            int y = scanLine.Y;
            uint num_spans = scanLine.NumSpans;
            ScanlineSpan scanlineSpan = scanLine.Begin();

            byte[] ManagedCoversArray = scanLine.Covers;
            unsafe
            {
                fixed (byte* pCovers = ManagedCoversArray)
                {
                    for (; ; )
                    {
                        int x = scanlineSpan.X;
                        if (scanlineSpan.Len > 0)
                        {
#if use_timers
                            render_scanline_aa_solid_blend_solid_hspan.Start();
#endif
                            pixFormat.BlendSolidHSpan(x, y, (uint)scanlineSpan.Len, color, &pCovers[scanlineSpan.CoverIndex]);
#if use_timers
                            render_scanline_aa_solid_blend_solid_hspan.Stop();
#endif
                        }
                        else
                        {
#if use_timers
                            render_scanline_aa_solid_blend_hline.Start();
#endif
                            pixFormat.BlendHLine(x, y, (x - (int)scanlineSpan.Len - 1), color, pCovers[scanlineSpan.CoverIndex]);
#if use_timers
                            render_scanline_aa_solid_blend_hline.Stop();
#endif
                        }
                        if (--num_spans == 0) break;
                        scanlineSpan = scanLine.GetNextScanlineSpan();
                    }
                }
            }
#if use_timers
            render_scanline_aa_solidTimer.Stop();
#endif
        }
示例#6
0
        //======================================================render_scanline_aa
        private static void GenerateAndRenderSingleScanline(IScanlineCache sl, IPixelFormat ren,
                                SpanAllocator alloc, ISpanGenerator<T> span_gen)
        {
            int y = sl.Y;
            uint num_spans = sl.NumSpans;
            ScanlineSpan scanlineSpan = sl.Begin();

            byte[] ManagedCoversArray = sl.Covers;
            unsafe
            {
                fixed (byte* pCovers = ManagedCoversArray)
                {
                    for (; ; )
                    {
                        int x = scanlineSpan.X;
                        int len = scanlineSpan.Len;
                        if (len < 0) len = -len;

                        if (tempSpanColors.Capacity() < len)
                        {
                            tempSpanColors.Allocate((uint)(len));
                        }

                        fixed (RGBA_Bytes* pColors = tempSpanColors.Array)
                        {
                            span_gen.Generate(pColors, x, y, (uint)len);
#if use_timers
                            blend_color_hspan.Start();
#endif
                            ren.BlendColorHSpan(x, y, (uint)len, pColors, (scanlineSpan.Len < 0) ? null : &pCovers[scanlineSpan.CoverIndex], pCovers[scanlineSpan.CoverIndex]);
#if use_timers
                            blend_color_hspan.Stop();
#endif
                        }

                        if (--num_spans == 0) break;
                        scanlineSpan = sl.GetNextScanlineSpan();
                    }
                }
            }
        }
示例#7
0
		private void RenderSolidSingleScanLine(IImageFloat destImage, IScanlineCache scanLine, RGBA_Floats color)
		{
			int y = scanLine.y();
			int num_spans = scanLine.num_spans();
			ScanlineSpan scanlineSpan = scanLine.begin();

			byte[] ManagedCoversArray = scanLine.GetCovers();
			for (; ; )
			{
				int x = scanlineSpan.x;
				if (scanlineSpan.len > 0)
				{
					destImage.blend_solid_hspan(x, y, scanlineSpan.len, color, ManagedCoversArray, scanlineSpan.cover_index);
				}
				else
				{
					int x2 = (x - (int)scanlineSpan.len - 1);
					destImage.blend_hline(x, y, x2, color, ManagedCoversArray[scanlineSpan.cover_index]);
				}
				if (--num_spans == 0) break;
				scanlineSpan = scanLine.GetNextScanlineSpan();
			}
		}
示例#8
0
        public void RenderCompound(rasterizer_compound_aa ras, IScanlineCache sl_aa, IScanlineCache sl_bin, IImageByte imageFormat, span_allocator alloc, IStyleHandler sh)
        {
#if false
            unsafe
            {
                if (ras.rewind_scanlines())
                {
                    int min_x = ras.min_x();
                    int len   = ras.max_x() - min_x + 2;
                    sl_aa.reset(min_x, ras.max_x());
                    sl_bin.reset(min_x, ras.max_x());

                    //typedef typename BaseRenderer::color_type color_type;
                    ArrayPOD <RGBA_Bytes> color_span = alloc.allocate((int)len * 2);
                    byte[] ManagedCoversArray        = sl_aa.GetCovers();
                    fixed(byte *pCovers = ManagedCoversArray)
                    {
                        fixed(RGBA_Bytes *pColorSpan = color_span.Array)
                        {
                            int mix_bufferOffset = len;
                            int num_spans;

                            int  num_styles;
                            int  style;
                            bool solid;

                            while ((num_styles = ras.sweep_styles()) > 0)
                            {
                                if (num_styles == 1)
                                {
                                    // Optimization for a single style. Happens often
                                    //-------------------------
                                    if (ras.sweep_scanline(sl_aa, 0))
                                    {
                                        style = ras.style(0);
                                        if (sh.is_solid(style))
                                        {
                                            // Just solid fill
                                            //-----------------------
                                            RenderSolidSingleScanLine(imageFormat, sl_aa, sh.color(style));
                                        }
                                        else
                                        {
                                            // Arbitrary span generator
                                            //-----------------------
                                            ScanlineSpan span_aa = sl_aa.Begin();
                                            num_spans = sl_aa.num_spans();
                                            for (; ;)
                                            {
                                                len = span_aa.len;
                                                sh.generate_span(pColorSpan,
                                                                 span_aa.x,
                                                                 sl_aa.y(),
                                                                 (int)len,
                                                                 style);

                                                imageFormat.blend_color_hspan(span_aa.x,
                                                                              sl_aa.y(),
                                                                              (int)span_aa.len,
                                                                              pColorSpan,
                                                                              &pCovers[span_aa.cover_index], 0);
                                                if (--num_spans == 0)
                                                {
                                                    break;
                                                }
                                                span_aa = sl_aa.GetNextScanlineSpan();
                                            }
                                        }
                                    }
                                }
                                else // there are multiple styles
                                {
                                    if (ras.sweep_scanline(sl_bin, -1))
                                    {
                                        // Clear the spans of the mix_buffer
                                        //--------------------
                                        ScanlineSpan span_bin = sl_bin.Begin();
                                        num_spans = sl_bin.num_spans();
                                        for (; ;)
                                        {
                                            agg_basics.MemClear((byte *)&pColorSpan[mix_bufferOffset + span_bin.x - min_x],
                                                                span_bin.len * sizeof(RGBA_Bytes));

                                            if (--num_spans == 0)
                                            {
                                                break;
                                            }
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }

                                        for (int i = 0; i < num_styles; i++)
                                        {
                                            style = ras.style(i);
                                            solid = sh.is_solid(style);

                                            if (ras.sweep_scanline(sl_aa, (int)i))
                                            {
                                                //IColorType* colors;
                                                //IColorType* cspan;
                                                //typename ScanlineAA::cover_type* covers;
                                                ScanlineSpan span_aa = sl_aa.Begin();
                                                num_spans = sl_aa.num_spans();
                                                if (solid)
                                                {
                                                    // Just solid fill
                                                    //-----------------------
                                                    for (; ;)
                                                    {
                                                        RGBA_Bytes c = sh.color(style);
                                                        len = span_aa.len;
                                                        RGBA_Bytes *colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
                                                        byte *      covers = &pCovers[span_aa.cover_index];
                                                        do
                                                        {
                                                            if (*covers == cover_full)
                                                            {
                                                                *colors = c;
                                                            }
                                                            else
                                                            {
                                                                colors->add(c, *covers);
                                                            }
                                                            ++colors;
                                                            ++covers;
                                                        }while (--len != 0);
                                                        if (--num_spans == 0)
                                                        {
                                                            break;
                                                        }
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                                else
                                                {
                                                    // Arbitrary span generator
                                                    //-----------------------
                                                    for (; ;)
                                                    {
                                                        len = span_aa.len;
                                                        RGBA_Bytes *colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
                                                        RGBA_Bytes *cspan  = pColorSpan;
                                                        sh.generate_span(cspan,
                                                                         span_aa.x,
                                                                         sl_aa.y(),
                                                                         (int)len,
                                                                         style);
                                                        byte *covers = &pCovers[span_aa.cover_index];
                                                        do
                                                        {
                                                            if (*covers == cover_full)
                                                            {
                                                                *colors = *cspan;
                                                            }
                                                            else
                                                            {
                                                                colors->add(*cspan, *covers);
                                                            }
                                                            ++cspan;
                                                            ++colors;
                                                            ++covers;
                                                        }while (--len != 0);
                                                        if (--num_spans == 0)
                                                        {
                                                            break;
                                                        }
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                            }
                                        }

                                        // Emit the blended result as a color hspan
                                        //-------------------------
                                        span_bin  = sl_bin.Begin();
                                        num_spans = sl_bin.num_spans();
                                        for (; ;)
                                        {
                                            imageFormat.blend_color_hspan(span_bin.x,
                                                                          sl_bin.y(),
                                                                          (int)span_bin.len,
                                                                          &pColorSpan[mix_bufferOffset + span_bin.x - min_x],
                                                                          null,
                                                                          cover_full);
                                            if (--num_spans == 0)
                                            {
                                                break;
                                            }
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }
                                    } // if(ras.sweep_scanline(sl_bin, -1))
                                }     // if(num_styles == 1) ... else
                            }         // while((num_styles = ras.sweep_styles()) > 0)
                        }
                    }
                } // if(ras.rewind_scanlines())
            }
#endif
        }
示例#9
0
        public static void RenderCompound(RasterizerCompoundAA<T> ras,
                                       IScanlineCache sl_aa,
                                       IScanlineCache sl_bin,
                                       IPixelFormat pixelFormat,
                                       SpanAllocator alloc,
                                       IStyleHandler sh)
        {
#if true
            unsafe
            {
                if (ras.RewindScanlines())
                {
                    int min_x = ras.MinX;
                    int len = ras.MaxX - min_x + 2;
                    sl_aa.Reset(min_x, ras.MaxX);
                    sl_bin.Reset(min_x, ras.MaxX);

                    //typedef typename BaseRenderer::color_type color_type;
                    ArrayPOD<RGBA_Bytes> color_span = alloc.Allocate((uint)len * 2);
                    byte[] ManagedCoversArray = sl_aa.Covers;
                    fixed (byte* pCovers = ManagedCoversArray)
                    {
                        fixed (RGBA_Bytes* pColorSpan = color_span.Array)
                        {
                            int mix_bufferOffset = len;
                            uint num_spans;

                            uint num_styles;
                            uint style;
                            bool solid;
                            while ((num_styles = ras.SweepStyles()) > 0)
                            {
                                if (num_styles == 1)
                                {
                                    // Optimization for a single style. Happens often
                                    //-------------------------
                                    if (ras.SweepScanline(sl_aa, 0))
                                    {
                                        style = ras.Style(0);
                                        if (sh.IsSolid(style))
                                        {
                                            // Just solid fill
                                            //-----------------------
                                            RenderSolidSingleScanLine(pixelFormat, sl_aa, sh.Color(style));
                                        }
                                        else
                                        {
                                            // Arbitrary span generator
                                            //-----------------------
                                            ScanlineSpan span_aa = sl_aa.Begin();
                                            num_spans = sl_aa.NumSpans;
                                            for (; ; )
                                            {
                                                len = span_aa.Len;
                                                sh.GenerateSpan(pColorSpan,
                                                                 span_aa.X,
                                                                 sl_aa.Y,
                                                                 (uint)len,
                                                                 style);

                                                pixelFormat.BlendColorHSpan(span_aa.X,
                                                                      sl_aa.Y,
                                                                      (uint)span_aa.Len,
                                                                      pColorSpan,
                                                                      &pCovers[span_aa.CoverIndex], 0);
                                                if (--num_spans == 0) break;
                                                span_aa = sl_aa.GetNextScanlineSpan();
                                            }
                                        }
                                    }
                                }
                                else // there are multiple styles
                                {
                                    if (ras.SweepScanline(sl_bin, -1))
                                    {
                                        // Clear the spans of the mix_buffer
                                        //--------------------
                                        ScanlineSpan span_bin = sl_bin.Begin();
                                        num_spans = sl_bin.NumSpans;
                                        for (; ; )
                                        {
                                            Basics.MemClear((byte*)&pColorSpan[mix_bufferOffset + span_bin.X - min_x],
                                                   span_bin.Len * sizeof(RGBA_Bytes));

                                            if (--num_spans == 0) break;
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }

                                        for (uint i = 0; i < num_styles; i++)
                                        {
                                            style = ras.Style(i);
                                            solid = sh.IsSolid(style);

                                            if (ras.SweepScanline(sl_aa, (int)i))
                                            {
                                                //IColorType* colors;
                                                //IColorType* cspan;
                                                //typename ScanlineAA::cover_type* covers;
                                                ScanlineSpan span_aa = sl_aa.Begin();
                                                num_spans = sl_aa.NumSpans;
                                                if (solid)
                                                {
                                                    // Just solid fill
                                                    //-----------------------
                                                    for (; ; )
                                                    {
                                                        RGBA_Bytes c = sh.Color(style);
                                                        len = span_aa.Len;
                                                        RGBA_Bytes* colors = &pColorSpan[mix_bufferOffset + span_aa.X - min_x];
                                                        byte* covers = &pCovers[span_aa.CoverIndex];
                                                        do
                                                        {
                                                            if (*covers == CoverFull)
                                                            {
                                                                *colors = c;
                                                            }
                                                            else
                                                            {
                                                                colors->Add(c, *covers);
                                                            }
                                                            ++colors;
                                                            ++covers;
                                                        }
                                                        while (--len != 0);
                                                        if (--num_spans == 0) break;
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                                else
                                                {
                                                    // Arbitrary span generator
                                                    //-----------------------
                                                    for (; ; )
                                                    {
                                                        len = span_aa.Len;
                                                        RGBA_Bytes* colors = &pColorSpan[mix_bufferOffset + span_aa.X - min_x];
                                                        RGBA_Bytes* cspan = pColorSpan;
                                                        sh.GenerateSpan(cspan,
                                                                         span_aa.X,
                                                                         sl_aa.Y,
                                                                         (uint)len,
                                                                         style);
                                                        byte* covers = &pCovers[span_aa.CoverIndex];
                                                        do
                                                        {
                                                            if (*covers == CoverFull)
                                                            {
                                                                *colors = *cspan;
                                                            }
                                                            else
                                                            {
                                                                colors->Add(*cspan, *covers);
                                                            }
                                                            ++cspan;
                                                            ++colors;
                                                            ++covers;
                                                        }
                                                        while (--len != 0);
                                                        if (--num_spans == 0) break;
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                            }
                                        }

                                        // Emit the blended result as a color hspan
                                        //-------------------------
                                        span_bin = sl_bin.Begin();
                                        num_spans = sl_bin.NumSpans;
                                        for (; ; )
                                        {
                                            pixelFormat.BlendColorHSpan(span_bin.X,
                                                                  sl_bin.Y,
                                                                  (uint)span_bin.Len,
                                                                  &pColorSpan[mix_bufferOffset + span_bin.X - min_x],
                                                                  null,
                                                                  CoverFull);
                                            if (--num_spans == 0) break;
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }
                                    } // if(ras.sweep_scanline(sl_bin, -1))
                                } // if(num_styles == 1) ... else
                            } // while((num_styles = ras.sweep_styles()) > 0)
                        }
                    }
                } // if(ras.rewind_scanlines())
#endif
            }
        }
示例#10
0
		public void RenderCompound(rasterizer_compound_aa ras, IScanlineCache sl_aa, IScanlineCache sl_bin, IImageByte imageFormat, span_allocator alloc, IStyleHandler sh)
		{
#if false
            unsafe
            {
                if (ras.rewind_scanlines())
                {
                    int min_x = ras.min_x();
                    int len = ras.max_x() - min_x + 2;
                    sl_aa.reset(min_x, ras.max_x());
                    sl_bin.reset(min_x, ras.max_x());

                    //typedef typename BaseRenderer::color_type color_type;
                    ArrayPOD<RGBA_Bytes> color_span = alloc.allocate((int)len * 2);
                    byte[] ManagedCoversArray = sl_aa.GetCovers();
                    fixed (byte* pCovers = ManagedCoversArray)
                    {
                        fixed (RGBA_Bytes* pColorSpan = color_span.Array)
                        {
                            int mix_bufferOffset = len;
                            int num_spans;

                            int num_styles;
                            int style;
                            bool solid;
                            while ((num_styles = ras.sweep_styles()) > 0)
                            {
                                if (num_styles == 1)
                                {
                                    // Optimization for a single style. Happens often
                                    //-------------------------
                                    if (ras.sweep_scanline(sl_aa, 0))
                                    {
                                        style = ras.style(0);
                                        if (sh.is_solid(style))
                                        {
                                            // Just solid fill
                                            //-----------------------
                                            RenderSolidSingleScanLine(imageFormat, sl_aa, sh.color(style));
                                        }
                                        else
                                        {
                                            // Arbitrary span generator
                                            //-----------------------
                                            ScanlineSpan span_aa = sl_aa.Begin();
                                            num_spans = sl_aa.num_spans();
                                            for (; ; )
                                            {
                                                len = span_aa.len;
                                                sh.generate_span(pColorSpan,
                                                                 span_aa.x,
                                                                 sl_aa.y(),
                                                                 (int)len,
                                                                 style);

                                                imageFormat.blend_color_hspan(span_aa.x,
                                                                      sl_aa.y(),
                                                                      (int)span_aa.len,
                                                                      pColorSpan,
                                                                      &pCovers[span_aa.cover_index], 0);
                                                if (--num_spans == 0) break;
                                                span_aa = sl_aa.GetNextScanlineSpan();
                                            }
                                        }
                                    }
                                }
                                else // there are multiple styles
                                {
                                    if (ras.sweep_scanline(sl_bin, -1))
                                    {
                                        // Clear the spans of the mix_buffer
                                        //--------------------
                                        ScanlineSpan span_bin = sl_bin.Begin();
                                        num_spans = sl_bin.num_spans();
                                        for (; ; )
                                        {
                                            agg_basics.MemClear((byte*)&pColorSpan[mix_bufferOffset + span_bin.x - min_x],
                                                   span_bin.len * sizeof(RGBA_Bytes));

                                            if (--num_spans == 0) break;
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }

                                        for (int i = 0; i < num_styles; i++)
                                        {
                                            style = ras.style(i);
                                            solid = sh.is_solid(style);

                                            if (ras.sweep_scanline(sl_aa, (int)i))
                                            {
                                                //IColorType* colors;
                                                //IColorType* cspan;
                                                //typename ScanlineAA::cover_type* covers;
                                                ScanlineSpan span_aa = sl_aa.Begin();
                                                num_spans = sl_aa.num_spans();
                                                if (solid)
                                                {
                                                    // Just solid fill
                                                    //-----------------------
                                                    for (; ; )
                                                    {
                                                        RGBA_Bytes c = sh.color(style);
                                                        len = span_aa.len;
                                                        RGBA_Bytes* colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
                                                        byte* covers = &pCovers[span_aa.cover_index];
                                                        do
                                                        {
                                                            if (*covers == cover_full)
                                                            {
                                                                *colors = c;
                                                            }
                                                            else
                                                            {
                                                                colors->add(c, *covers);
                                                            }
                                                            ++colors;
                                                            ++covers;
                                                        }
                                                        while (--len != 0);
                                                        if (--num_spans == 0) break;
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                                else
                                                {
                                                    // Arbitrary span generator
                                                    //-----------------------
                                                    for (; ; )
                                                    {
                                                        len = span_aa.len;
                                                        RGBA_Bytes* colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
                                                        RGBA_Bytes* cspan = pColorSpan;
                                                        sh.generate_span(cspan,
                                                                         span_aa.x,
                                                                         sl_aa.y(),
                                                                         (int)len,
                                                                         style);
                                                        byte* covers = &pCovers[span_aa.cover_index];
                                                        do
                                                        {
                                                            if (*covers == cover_full)
                                                            {
                                                                *colors = *cspan;
                                                            }
                                                            else
                                                            {
                                                                colors->add(*cspan, *covers);
                                                            }
                                                            ++cspan;
                                                            ++colors;
                                                            ++covers;
                                                        }
                                                        while (--len != 0);
                                                        if (--num_spans == 0) break;
                                                        span_aa = sl_aa.GetNextScanlineSpan();
                                                    }
                                                }
                                            }
                                        }

                                        // Emit the blended result as a color hspan
                                        //-------------------------
                                        span_bin = sl_bin.Begin();
                                        num_spans = sl_bin.num_spans();
                                        for (; ; )
                                        {
                                            imageFormat.blend_color_hspan(span_bin.x,
                                                                  sl_bin.y(),
                                                                  (int)span_bin.len,
                                                                  &pColorSpan[mix_bufferOffset + span_bin.x - min_x],
                                                                  null,
                                                                  cover_full);
                                            if (--num_spans == 0) break;
                                            span_bin = sl_bin.GetNextScanlineSpan();
                                        }
                                    } // if(ras.sweep_scanline(sl_bin, -1))
                                } // if(num_styles == 1) ... else
                            } // while((num_styles = ras.sweep_styles()) > 0)
                        }
                    }
                } // if(ras.rewind_scanlines())
            }
#endif
		}
示例#11
0
		private void GenerateAndRenderSingleScanline(IScanlineCache scanLineCache, IImageFloat destImageFloat, span_allocator alloc, ISpanGeneratorFloat span_gen)
		{
			int y = scanLineCache.y();
			int num_spans = scanLineCache.num_spans();
			ScanlineSpan scanlineSpan = scanLineCache.begin();

			byte[] ManagedCoversArray = scanLineCache.GetCovers();
			for (; ; )
			{
				int x = scanlineSpan.x;
				int len = scanlineSpan.len;
				if (len < 0) len = -len;

				if (tempSpanColorsFloats.Capacity() < len)
				{
					tempSpanColorsFloats.Capacity(len);
				}

				span_gen.generate(tempSpanColorsFloats.Array, 0, x, y, len);
				bool useFirstCoverForAll = scanlineSpan.len < 0;
				destImageFloat.blend_color_hspan(x, y, len, tempSpanColorsFloats.Array, 0, ManagedCoversArray, scanlineSpan.cover_index, useFirstCoverForAll);

				if (--num_spans == 0) break;
				scanlineSpan = scanLineCache.GetNextScanlineSpan();
			}
		}