epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2006 The Android Open Source Project |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
Herb Derby | 57bfa02 | 2017-02-09 17:25:43 -0500 | [diff] [blame] | 8 | #include "SkArenaAlloc.h" |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 9 | #include "SkColorSpace.h" |
| 10 | #include "SkCoreBlitters.h" |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 11 | #include "SkOpts.h" |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 12 | #include "SkPM4fPriv.h" |
| 13 | #include "SkRasterPipeline.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 14 | #include "SkSpriteBlitter.h" |
| 15 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 16 | SkSpriteBlitter::SkSpriteBlitter(const SkPixmap& source) |
| 17 | : fSource(source) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 19 | void SkSpriteBlitter::setup(const SkPixmap& dst, int left, int top, const SkPaint& paint) { |
| 20 | fDst = dst; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | fLeft = left; |
| 22 | fTop = top; |
| 23 | fPaint = &paint; |
| 24 | } |
| 25 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 26 | void SkSpriteBlitter::blitH(int x, int y, int width) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 27 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 28 | |
| 29 | // Fallback to blitRect. |
| 30 | this->blitRect(x, y, width, 1); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 31 | } |
| 32 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 33 | void SkSpriteBlitter::blitAntiH(int x, int y, const SkAlpha antialias[], const int16_t runs[]) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 34 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 35 | |
| 36 | // No fallback strategy. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 37 | } |
| 38 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 39 | void SkSpriteBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 40 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 41 | |
| 42 | // Fall back to superclass if the code gets here in release mode. |
| 43 | INHERITED::blitV(x, y, height, alpha); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | } |
| 45 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 46 | void SkSpriteBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 47 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 48 | |
| 49 | // Fall back to superclass if the code gets here in release mode. |
| 50 | INHERITED::blitMask(mask, clip); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 51 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 52 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 53 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 55 | class SkSpriteBlitter_Memcpy final : public SkSpriteBlitter { |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 56 | public: |
| 57 | static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) { |
| 58 | if (dst.colorType() != src.colorType()) { |
| 59 | return false; |
| 60 | } |
Mike Klein | 2398033 | 2017-05-31 12:13:42 -0400 | [diff] [blame] | 61 | if (!SkColorSpace::Equals(dst.colorSpace(), src.colorSpace())) { |
| 62 | return false; |
| 63 | } |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 64 | if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) { |
| 65 | return false; |
| 66 | } |
| 67 | if (0xFF != paint.getAlpha()) { |
| 68 | return false; |
| 69 | } |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 70 | SkBlendMode mode = paint.getBlendMode(); |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 71 | return SkBlendMode::kSrc == mode || (SkBlendMode::kSrcOver == mode && src.isOpaque()); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 72 | } |
| 73 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 74 | SkSpriteBlitter_Memcpy(const SkPixmap& src) |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 75 | : INHERITED(src) {} |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 76 | |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 77 | void blitRect(int x, int y, int width, int height) override { |
| 78 | SkASSERT(fDst.colorType() == fSource.colorType()); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 79 | SkASSERT(width > 0 && height > 0); |
| 80 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 81 | char* dst = (char*)fDst.writable_addr(x, y); |
| 82 | const char* src = (const char*)fSource.addr(x - fLeft, y - fTop); |
| 83 | const size_t dstRB = fDst.rowBytes(); |
| 84 | const size_t srcRB = fSource.rowBytes(); |
| 85 | const size_t bytesToCopy = width << fSource.shiftPerPixel(); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 86 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 87 | while (height --> 0) { |
| 88 | memcpy(dst, src, bytesToCopy); |
| 89 | dst += dstRB; |
| 90 | src += srcRB; |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 91 | } |
| 92 | } |
| 93 | |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 94 | private: |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 95 | typedef SkSpriteBlitter INHERITED; |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 96 | }; |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 97 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 98 | class SkRasterPipelineSpriteBlitter : public SkSpriteBlitter { |
| 99 | public: |
| 100 | SkRasterPipelineSpriteBlitter(const SkPixmap& src, SkArenaAlloc* alloc) |
| 101 | : INHERITED(src) |
| 102 | , fAlloc(alloc) |
| 103 | , fBlitter(nullptr) |
| 104 | , fSrcPtr(nullptr) |
| 105 | {} |
| 106 | |
| 107 | static bool Supports(const SkPixmap& src) { |
| 108 | // We'd need to add a load_i8 stage. |
| 109 | return src.colorType() != kIndex_8_SkColorType; |
| 110 | } |
| 111 | |
| 112 | void setup(const SkPixmap& dst, int left, int top, const SkPaint& paint) override { |
| 113 | fDst = dst; |
| 114 | fLeft = left; |
| 115 | fTop = top; |
| 116 | |
| 117 | fPaintColor = SkColor4f_from_SkColor(paint.getColor(), fDst.colorSpace()); |
| 118 | |
| 119 | SkRasterPipeline p(fAlloc); |
| 120 | switch (fSource.colorType()) { |
| 121 | case kAlpha_8_SkColorType: p.append(SkRasterPipeline::load_a8, &fSrcPtr); break; |
| 122 | case kGray_8_SkColorType: p.append(SkRasterPipeline::load_g8, &fSrcPtr); break; |
| 123 | case kRGB_565_SkColorType: p.append(SkRasterPipeline::load_565, &fSrcPtr); break; |
| 124 | case kARGB_4444_SkColorType: p.append(SkRasterPipeline::load_4444, &fSrcPtr); break; |
Mike Klein | c2d2076 | 2017-06-27 19:53:21 -0400 | [diff] [blame^] | 125 | case kBGRA_8888_SkColorType: p.append(SkRasterPipeline::load_bgra, &fSrcPtr); break; |
| 126 | case kRGBA_8888_SkColorType: p.append(SkRasterPipeline::load_8888, &fSrcPtr); break; |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 127 | case kRGBA_F16_SkColorType: p.append(SkRasterPipeline::load_f16, &fSrcPtr); break; |
| 128 | default: SkASSERT(false); |
| 129 | } |
| 130 | if (fDst.colorSpace() && |
| 131 | (!fSource.colorSpace() || fSource.colorSpace()->gammaCloseToSRGB())) { |
| 132 | p.append_from_srgb(fSource.alphaType()); |
| 133 | } |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 134 | if (fSource.colorType() == kAlpha_8_SkColorType) { |
| 135 | p.append(SkRasterPipeline::set_rgb, &fPaintColor); |
| 136 | p.append(SkRasterPipeline::premul); |
| 137 | } |
| 138 | append_gamut_transform(&p, fAlloc, |
| 139 | fSource.colorSpace(), fDst.colorSpace(), kPremul_SkAlphaType); |
| 140 | if (fPaintColor.fA != 1.0f) { |
| 141 | p.append(SkRasterPipeline::scale_1_float, &fPaintColor.fA); |
| 142 | } |
| 143 | |
Mike Reed | eb7dc79 | 2017-06-12 12:48:45 -0400 | [diff] [blame] | 144 | bool is_opaque = fSource.isOpaque() && fPaintColor.fA == 1.0f; |
| 145 | fBlitter = SkCreateRasterPipelineBlitter(fDst, paint, p, is_opaque, fAlloc); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 146 | } |
| 147 | |
| 148 | void blitRect(int x, int y, int width, int height) override { |
| 149 | fSrcPtr = (const char*)fSource.addr(x-fLeft,y-fTop); |
| 150 | |
| 151 | // Our pipeline will load from fSrcPtr+x, fSrcPtr+x+1, etc., |
| 152 | // so we back up an extra x pixels to start at 0. |
| 153 | fSrcPtr -= fSource.info().bytesPerPixel() * x; |
| 154 | |
| 155 | while (height --> 0) { |
| 156 | fBlitter->blitH(x,y++, width); |
| 157 | fSrcPtr += fSource.rowBytes(); |
| 158 | } |
| 159 | } |
| 160 | |
| 161 | private: |
| 162 | SkArenaAlloc* fAlloc; |
| 163 | SkBlitter* fBlitter; |
| 164 | const char* fSrcPtr; |
| 165 | SkColor4f fPaintColor; |
| 166 | |
| 167 | typedef SkSpriteBlitter INHERITED; |
| 168 | }; |
| 169 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 170 | // returning null means the caller will call SkBlitter::Choose() and |
| 171 | // have wrapped the source bitmap inside a shader |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 172 | SkBlitter* SkBlitter::ChooseSprite(const SkPixmap& dst, const SkPaint& paint, |
Herb Derby | 57bfa02 | 2017-02-09 17:25:43 -0500 | [diff] [blame] | 173 | const SkPixmap& source, int left, int top, SkArenaAlloc* allocator) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 174 | /* We currently ignore antialiasing and filtertype, meaning we will take our |
| 175 | special blitters regardless of these settings. Ignoring filtertype seems fine |
| 176 | since by definition there is no scale in the matrix. Ignoring antialiasing is |
| 177 | a bit of a hack, since we "could" pass in the fractional left/top for the bitmap, |
| 178 | and respect that by blending the edges of the bitmap against the device. To support |
| 179 | this we could either add more special blitters here, or detect antialiasing in the |
| 180 | paint and return null if it is set, forcing the client to take the slow shader case |
| 181 | (which does respect soft edges). |
| 182 | */ |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 183 | SkASSERT(allocator != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 184 | |
herb | 5823846 | 2016-06-03 09:44:53 -0700 | [diff] [blame] | 185 | if (source.alphaType() == kUnpremul_SkAlphaType) { |
| 186 | return nullptr; |
| 187 | } |
Mike Reed | 428266d | 2017-06-24 18:17:49 -0400 | [diff] [blame] | 188 | #ifndef SK_SUPPORT_LEGACY_COLORFILTER_FILTERSPAN |
| 189 | if (paint.getColorFilter()) { |
| 190 | return nullptr; |
| 191 | } |
| 192 | #endif |
herb | 5823846 | 2016-06-03 09:44:53 -0700 | [diff] [blame] | 193 | |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 194 | SkSpriteBlitter* blitter = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 195 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 196 | if (!blitter && SkSpriteBlitter_Memcpy::Supports(dst, source, paint)) { |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 197 | blitter = allocator->make<SkSpriteBlitter_Memcpy>(source); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 198 | } |
| 199 | if (!blitter && !dst.colorSpace() && dst.colorType() == kN32_SkColorType) { |
| 200 | blitter = SkSpriteBlitter::ChooseL32(source, paint, allocator); |
| 201 | } |
| 202 | if (!blitter && SkRasterPipelineSpriteBlitter::Supports(source)) { |
| 203 | blitter = allocator->make<SkRasterPipelineSpriteBlitter>(source, allocator); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 204 | } |
| 205 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 206 | if (blitter) { |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 207 | blitter->setup(dst, left, top, paint); |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 208 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 209 | return blitter; |
| 210 | } |