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" |
Mike Klein | e28a6b5 | 2018-07-25 13:05:17 -0400 | [diff] [blame] | 10 | #include "SkColorSpacePriv.h" |
Mike Klein | fcc10da | 2018-07-11 14:30:27 -0400 | [diff] [blame] | 11 | #include "SkColorSpaceXformSteps.h" |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 12 | #include "SkCoreBlitters.h" |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 13 | #include "SkOpts.h" |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 14 | #include "SkPM4fPriv.h" |
| 15 | #include "SkRasterPipeline.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 16 | #include "SkSpriteBlitter.h" |
Mike Klein | 45c16fa | 2017-07-18 18:15:13 -0400 | [diff] [blame] | 17 | #include "../jumper/SkJumper.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 19 | SkSpriteBlitter::SkSpriteBlitter(const SkPixmap& source) |
| 20 | : fSource(source) {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 21 | |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 22 | void SkSpriteBlitter::setup(const SkPixmap& dst, int left, int top, const SkPaint& paint) { |
| 23 | fDst = dst; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 24 | fLeft = left; |
| 25 | fTop = top; |
| 26 | fPaint = &paint; |
| 27 | } |
| 28 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 29 | void SkSpriteBlitter::blitH(int x, int y, int width) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 30 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 31 | |
| 32 | // Fallback to blitRect. |
| 33 | this->blitRect(x, y, width, 1); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 34 | } |
| 35 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 36 | 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] | 37 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 38 | |
| 39 | // No fallback strategy. |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 40 | } |
| 41 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 42 | void SkSpriteBlitter::blitV(int x, int y, int height, SkAlpha alpha) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 43 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 44 | |
| 45 | // Fall back to superclass if the code gets here in release mode. |
| 46 | INHERITED::blitV(x, y, height, alpha); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 47 | } |
| 48 | |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 49 | void SkSpriteBlitter::blitMask(const SkMask& mask, const SkIRect& clip) { |
tomhudson@google.com | 0c00f21 | 2011-12-28 14:59:50 +0000 | [diff] [blame] | 50 | SkDEBUGFAIL("how did we get here?"); |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 51 | |
| 52 | // Fall back to superclass if the code gets here in release mode. |
| 53 | INHERITED::blitMask(mask, clip); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 55 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 56 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 57 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 58 | class SkSpriteBlitter_Memcpy final : public SkSpriteBlitter { |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 59 | public: |
| 60 | static bool Supports(const SkPixmap& dst, const SkPixmap& src, const SkPaint& paint) { |
| 61 | if (dst.colorType() != src.colorType()) { |
| 62 | return false; |
| 63 | } |
Mike Klein | 2398033 | 2017-05-31 12:13:42 -0400 | [diff] [blame] | 64 | if (!SkColorSpace::Equals(dst.colorSpace(), src.colorSpace())) { |
| 65 | return false; |
| 66 | } |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 67 | if (paint.getMaskFilter() || paint.getColorFilter() || paint.getImageFilter()) { |
| 68 | return false; |
| 69 | } |
| 70 | if (0xFF != paint.getAlpha()) { |
| 71 | return false; |
| 72 | } |
reed | 374772b | 2016-10-05 17:33:02 -0700 | [diff] [blame] | 73 | SkBlendMode mode = paint.getBlendMode(); |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 74 | return SkBlendMode::kSrc == mode || (SkBlendMode::kSrcOver == mode && src.isOpaque()); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 75 | } |
| 76 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 77 | SkSpriteBlitter_Memcpy(const SkPixmap& src) |
herb | 7df9e4a | 2016-06-10 13:01:27 -0700 | [diff] [blame] | 78 | : INHERITED(src) {} |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 79 | |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 80 | void blitRect(int x, int y, int width, int height) override { |
| 81 | SkASSERT(fDst.colorType() == fSource.colorType()); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 82 | SkASSERT(width > 0 && height > 0); |
| 83 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 84 | char* dst = (char*)fDst.writable_addr(x, y); |
| 85 | const char* src = (const char*)fSource.addr(x - fLeft, y - fTop); |
| 86 | const size_t dstRB = fDst.rowBytes(); |
| 87 | const size_t srcRB = fSource.rowBytes(); |
| 88 | const size_t bytesToCopy = width << fSource.shiftPerPixel(); |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 89 | |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 90 | while (height --> 0) { |
| 91 | memcpy(dst, src, bytesToCopy); |
| 92 | dst += dstRB; |
| 93 | src += srcRB; |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 94 | } |
| 95 | } |
| 96 | |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 97 | private: |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 98 | typedef SkSpriteBlitter INHERITED; |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 99 | }; |
reed | 8c3fd4f | 2016-04-15 06:59:38 -0700 | [diff] [blame] | 100 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 101 | class SkRasterPipelineSpriteBlitter : public SkSpriteBlitter { |
| 102 | public: |
| 103 | SkRasterPipelineSpriteBlitter(const SkPixmap& src, SkArenaAlloc* alloc) |
| 104 | : INHERITED(src) |
| 105 | , fAlloc(alloc) |
| 106 | , fBlitter(nullptr) |
Mike Klein | 45c16fa | 2017-07-18 18:15:13 -0400 | [diff] [blame] | 107 | , fSrcPtr{nullptr, 0} |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 108 | {} |
| 109 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 110 | void setup(const SkPixmap& dst, int left, int top, const SkPaint& paint) override { |
| 111 | fDst = dst; |
| 112 | fLeft = left; |
| 113 | fTop = top; |
Mike Klein | be56949 | 2018-09-14 09:34:21 -0400 | [diff] [blame] | 114 | fPaintColor = paint.getColor4f(); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 115 | |
| 116 | SkRasterPipeline p(fAlloc); |
Mike Klein | afa3502 | 2018-09-17 16:41:26 -0400 | [diff] [blame] | 117 | p.append_load(fSource.colorType(), &fSrcPtr); |
Mike Klein | 9fb5a53 | 2018-09-13 15:23:38 -0400 | [diff] [blame] | 118 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 119 | if (fSource.colorType() == kAlpha_8_SkColorType) { |
Mike Klein | fcc10da | 2018-07-11 14:30:27 -0400 | [diff] [blame] | 120 | // The color for A8 images comes from the (sRGB) paint color. |
Mike Klein | be56949 | 2018-09-14 09:34:21 -0400 | [diff] [blame] | 121 | p.append_set_rgb(fAlloc, fPaintColor); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 122 | p.append(SkRasterPipeline::premul); |
| 123 | } |
Mike Klein | fcc10da | 2018-07-11 14:30:27 -0400 | [diff] [blame] | 124 | if (auto dstCS = fDst.colorSpace()) { |
| 125 | auto srcCS = fSource.colorSpace(); |
| 126 | if (!srcCS || fSource.colorType() == kAlpha_8_SkColorType) { |
| 127 | // We treat untagged images as sRGB. |
| 128 | // A8 images get their r,g,b from the paint color, so they're also sRGB. |
Mike Klein | e28a6b5 | 2018-07-25 13:05:17 -0400 | [diff] [blame] | 129 | srcCS = sk_srgb_singleton(); |
Mike Klein | fcc10da | 2018-07-11 14:30:27 -0400 | [diff] [blame] | 130 | } |
Mike Klein | e28c791 | 2018-08-14 11:49:34 -0400 | [diff] [blame] | 131 | auto srcAT = fSource.isOpaque() ? kOpaque_SkAlphaType |
| 132 | : kPremul_SkAlphaType; |
| 133 | fAlloc->make<SkColorSpaceXformSteps>(srcCS, srcAT, |
Mike Klein | 8f3d36c | 2018-08-14 10:28:05 -0400 | [diff] [blame] | 134 | dstCS, kPremul_SkAlphaType) |
Mike Klein | fcc10da | 2018-07-11 14:30:27 -0400 | [diff] [blame] | 135 | ->apply(&p); |
| 136 | } |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 137 | if (fPaintColor.fA != 1.0f) { |
| 138 | p.append(SkRasterPipeline::scale_1_float, &fPaintColor.fA); |
| 139 | } |
| 140 | |
Mike Reed | eb7dc79 | 2017-06-12 12:48:45 -0400 | [diff] [blame] | 141 | bool is_opaque = fSource.isOpaque() && fPaintColor.fA == 1.0f; |
| 142 | fBlitter = SkCreateRasterPipelineBlitter(fDst, paint, p, is_opaque, fAlloc); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 143 | } |
| 144 | |
| 145 | void blitRect(int x, int y, int width, int height) override { |
Mike Klein | 45c16fa | 2017-07-18 18:15:13 -0400 | [diff] [blame] | 146 | fSrcPtr.stride = fSource.rowBytesAsPixels(); |
Mike Klein | 548d387 | 2018-01-24 15:36:35 -0500 | [diff] [blame] | 147 | |
| 148 | // We really want fSrcPtr.pixels = fSource.addr(-fLeft, -fTop) here, but that asserts. |
| 149 | // Instead we ask for addr(-fLeft+x, -fTop+y), then back up (x,y) manually. |
| 150 | // Representing bpp as a size_t keeps all this math in size_t instead of int, |
| 151 | // which could wrap around with large enough fSrcPtr.stride and y. |
| 152 | size_t bpp = fSource.info().bytesPerPixel(); |
| 153 | fSrcPtr.pixels = (char*)fSource.addr(-fLeft+x, -fTop+y) - bpp * x |
| 154 | - bpp * y * fSrcPtr.stride; |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 155 | |
Mike Klein | 45c16fa | 2017-07-18 18:15:13 -0400 | [diff] [blame] | 156 | fBlitter->blitRect(x,y,width,height); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 157 | } |
| 158 | |
| 159 | private: |
Mike Klein | 45c16fa | 2017-07-18 18:15:13 -0400 | [diff] [blame] | 160 | SkArenaAlloc* fAlloc; |
| 161 | SkBlitter* fBlitter; |
| 162 | SkJumper_MemoryCtx fSrcPtr; |
| 163 | SkColor4f fPaintColor; |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 164 | |
| 165 | typedef SkSpriteBlitter INHERITED; |
| 166 | }; |
| 167 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 168 | // returning null means the caller will call SkBlitter::Choose() and |
| 169 | // have wrapped the source bitmap inside a shader |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 170 | SkBlitter* SkBlitter::ChooseSprite(const SkPixmap& dst, const SkPaint& paint, |
Herb Derby | 57bfa02 | 2017-02-09 17:25:43 -0500 | [diff] [blame] | 171 | const SkPixmap& source, int left, int top, SkArenaAlloc* allocator) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 172 | /* We currently ignore antialiasing and filtertype, meaning we will take our |
| 173 | special blitters regardless of these settings. Ignoring filtertype seems fine |
| 174 | since by definition there is no scale in the matrix. Ignoring antialiasing is |
| 175 | a bit of a hack, since we "could" pass in the fractional left/top for the bitmap, |
| 176 | and respect that by blending the edges of the bitmap against the device. To support |
| 177 | this we could either add more special blitters here, or detect antialiasing in the |
| 178 | paint and return null if it is set, forcing the client to take the slow shader case |
| 179 | (which does respect soft edges). |
| 180 | */ |
halcanary | 96fcdcc | 2015-08-27 07:41:13 -0700 | [diff] [blame] | 181 | SkASSERT(allocator != nullptr); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 182 | |
herb | 5823846 | 2016-06-03 09:44:53 -0700 | [diff] [blame] | 183 | if (source.alphaType() == kUnpremul_SkAlphaType) { |
| 184 | return nullptr; |
| 185 | } |
| 186 | |
herb | a62038c | 2016-05-26 10:56:17 -0700 | [diff] [blame] | 187 | SkSpriteBlitter* blitter = nullptr; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 188 | |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 189 | if (!blitter && SkSpriteBlitter_Memcpy::Supports(dst, source, paint)) { |
Mike Reed | 1919dc4 | 2017-05-31 09:25:18 -0400 | [diff] [blame] | 190 | blitter = allocator->make<SkSpriteBlitter_Memcpy>(source); |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 191 | } |
Mike Reed | ef8ce28 | 2017-10-05 16:04:41 -0400 | [diff] [blame] | 192 | if (!blitter && !dst.colorSpace()) { |
| 193 | switch (dst.colorType()) { |
| 194 | case kN32_SkColorType: |
| 195 | blitter = SkSpriteBlitter::ChooseL32(source, paint, allocator); |
| 196 | break; |
| 197 | case kRGB_565_SkColorType: |
| 198 | blitter = SkSpriteBlitter::ChooseL565(source, paint, allocator); |
| 199 | break; |
| 200 | case kAlpha_8_SkColorType: |
| 201 | blitter = SkSpriteBlitter::ChooseLA8(source, paint, allocator); |
| 202 | break; |
| 203 | default: |
| 204 | break; |
| 205 | } |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 206 | } |
Mike Reed | 2826627 | 2018-01-17 23:04:04 -0500 | [diff] [blame] | 207 | if (!blitter && !paint.getMaskFilter()) { |
Mike Klein | 5cc9da6 | 2017-05-31 14:18:07 -0400 | [diff] [blame] | 208 | blitter = allocator->make<SkRasterPipelineSpriteBlitter>(source, allocator); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 209 | } |
| 210 | |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 211 | if (blitter) { |
reed | cb67414 | 2015-06-05 06:58:22 -0700 | [diff] [blame] | 212 | blitter->setup(dst, left, top, paint); |
mike@reedtribe.org | ebe5bcd | 2011-04-20 11:01:37 +0000 | [diff] [blame] | 213 | } |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 214 | return blitter; |
| 215 | } |