senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2012 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 | |
| 8 | #include "SkImageFilter.h" |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 9 | |
| 10 | #include "SkBitmap.h" |
| 11 | #include "SkFlattenableBuffers.h" |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 12 | #include "SkRect.h" |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 13 | #if SK_SUPPORT_GPU |
| 14 | #include "GrContext.h" |
| 15 | #include "GrTexture.h" |
| 16 | #include "SkImageFilterUtils.h" |
| 17 | #endif |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 18 | |
| 19 | SK_DEFINE_INST_COUNT(SkImageFilter) |
| 20 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 21 | SkImageFilter::SkImageFilter(int inputCount, SkImageFilter** inputs, const CropRect* cropRect) |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 22 | : fInputCount(inputCount), |
| 23 | fInputs(new SkImageFilter*[inputCount]), |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 24 | #ifdef SK_CROP_RECT_IS_INT |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 25 | fCropRect(cropRect ? *cropRect : SkIRect::MakeLargest()) { |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 26 | #else |
| 27 | fCropRect(cropRect ? *cropRect : CropRect(SkRect(), 0x0)) { |
| 28 | #endif |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 29 | for (int i = 0; i < inputCount; ++i) { |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 30 | fInputs[i] = inputs[i]; |
| 31 | SkSafeRef(fInputs[i]); |
| 32 | } |
| 33 | } |
| 34 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 35 | SkImageFilter::SkImageFilter(SkImageFilter* input, const CropRect* cropRect) |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 36 | : fInputCount(1), |
| 37 | fInputs(new SkImageFilter*[1]), |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 38 | #ifdef SK_CROP_RECT_IS_INT |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 39 | fCropRect(cropRect ? *cropRect : SkIRect::MakeLargest()) { |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 40 | #else |
| 41 | fCropRect(cropRect ? *cropRect : CropRect(SkRect(), 0x0)) { |
| 42 | #endif |
senorblanco@chromium.org | c2e8cef | 2012-10-22 15:07:14 +0000 | [diff] [blame] | 43 | fInputs[0] = input; |
| 44 | SkSafeRef(fInputs[0]); |
| 45 | } |
| 46 | |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 47 | SkImageFilter::SkImageFilter(SkImageFilter* input1, SkImageFilter* input2, const CropRect* cropRect) |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 48 | : fInputCount(2), fInputs(new SkImageFilter*[2]), |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 49 | #ifdef SK_CROP_RECT_IS_INT |
| 50 | fCropRect(cropRect ? *cropRect : SkIRect::MakeLargest()) { |
| 51 | #else |
| 52 | fCropRect(cropRect ? *cropRect : CropRect(SkRect(), 0x0)) { |
| 53 | #endif |
senorblanco@chromium.org | c2e8cef | 2012-10-22 15:07:14 +0000 | [diff] [blame] | 54 | fInputs[0] = input1; |
| 55 | fInputs[1] = input2; |
| 56 | SkSafeRef(fInputs[0]); |
| 57 | SkSafeRef(fInputs[1]); |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 58 | } |
| 59 | |
| 60 | SkImageFilter::~SkImageFilter() { |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 61 | for (int i = 0; i < fInputCount; i++) { |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 62 | SkSafeUnref(fInputs[i]); |
| 63 | } |
| 64 | delete[] fInputs; |
| 65 | } |
| 66 | |
skia.committer@gmail.com | fc84359 | 2012-10-11 02:01:14 +0000 | [diff] [blame] | 67 | SkImageFilter::SkImageFilter(SkFlattenableReadBuffer& buffer) |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 68 | : fInputCount(buffer.readInt()), fInputs(new SkImageFilter*[fInputCount]) { |
| 69 | for (int i = 0; i < fInputCount; i++) { |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 70 | if (buffer.readBool()) { |
| 71 | fInputs[i] = static_cast<SkImageFilter*>(buffer.readFlattenable()); |
| 72 | } else { |
| 73 | fInputs[i] = NULL; |
| 74 | } |
| 75 | } |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 76 | #ifdef SK_CROP_RECT_IS_INT |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 77 | buffer.readIRect(&fCropRect); |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 78 | #else |
| 79 | buffer.readRect(&fCropRect.fRect); |
| 80 | fCropRect.fFlags = buffer.readUInt(); |
| 81 | #endif |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 82 | } |
| 83 | |
| 84 | void SkImageFilter::flatten(SkFlattenableWriteBuffer& buffer) const { |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 85 | buffer.writeInt(fInputCount); |
| 86 | for (int i = 0; i < fInputCount; i++) { |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 87 | SkImageFilter* input = getInput(i); |
| 88 | buffer.writeBool(input != NULL); |
| 89 | if (input != NULL) { |
| 90 | buffer.writeFlattenable(input); |
| 91 | } |
| 92 | } |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 93 | #ifdef SK_CROP_RECT_IS_INT |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 94 | buffer.writeIRect(fCropRect); |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 95 | #else |
| 96 | buffer.writeRect(fCropRect.fRect); |
| 97 | buffer.writeUInt(fCropRect.fFlags); |
| 98 | #endif |
senorblanco@chromium.org | 9f25de7 | 2012-10-10 20:36:13 +0000 | [diff] [blame] | 99 | } |
| 100 | |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 101 | bool SkImageFilter::filterImage(Proxy* proxy, const SkBitmap& src, |
| 102 | const SkMatrix& ctm, |
| 103 | SkBitmap* result, SkIPoint* loc) { |
| 104 | SkASSERT(result); |
| 105 | SkASSERT(loc); |
| 106 | /* |
| 107 | * Give the proxy first shot at the filter. If it returns false, ask |
| 108 | * the filter to do it. |
| 109 | */ |
| 110 | return (proxy && proxy->filterImage(this, src, ctm, result, loc)) || |
| 111 | this->onFilterImage(proxy, src, ctm, result, loc); |
| 112 | } |
| 113 | |
| 114 | bool SkImageFilter::filterBounds(const SkIRect& src, const SkMatrix& ctm, |
| 115 | SkIRect* dst) { |
| 116 | SkASSERT(&src); |
| 117 | SkASSERT(dst); |
| 118 | return this->onFilterBounds(src, ctm, dst); |
| 119 | } |
| 120 | |
| 121 | bool SkImageFilter::onFilterImage(Proxy*, const SkBitmap&, const SkMatrix&, |
| 122 | SkBitmap*, SkIPoint*) { |
| 123 | return false; |
| 124 | } |
| 125 | |
| 126 | bool SkImageFilter::canFilterImageGPU() const { |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 127 | return this->asNewEffect(NULL, NULL, SkMatrix::I()); |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 128 | } |
| 129 | |
commit-bot@chromium.org | 1aa54bf | 2013-08-05 16:53:50 +0000 | [diff] [blame] | 130 | bool SkImageFilter::filterImageGPU(Proxy* proxy, const SkBitmap& src, const SkMatrix& ctm, |
| 131 | SkBitmap* result, SkIPoint* offset) { |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 132 | #if SK_SUPPORT_GPU |
| 133 | SkBitmap input; |
| 134 | SkASSERT(fInputCount == 1); |
commit-bot@chromium.org | 1aa54bf | 2013-08-05 16:53:50 +0000 | [diff] [blame] | 135 | if (!SkImageFilterUtils::GetInputResultGPU(this->getInput(0), proxy, src, ctm, &input, offset)) { |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 136 | return false; |
| 137 | } |
commit-bot@chromium.org | b8d00db | 2013-06-26 19:18:23 +0000 | [diff] [blame] | 138 | GrTexture* srcTexture = input.getTexture(); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 139 | SkIRect bounds; |
| 140 | src.getBounds(&bounds); |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 141 | if (!this->applyCropRect(&bounds, ctm)) { |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 142 | return false; |
| 143 | } |
| 144 | SkRect srcRect = SkRect::Make(bounds); |
| 145 | SkRect dstRect = SkRect::MakeWH(srcRect.width(), srcRect.height()); |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 146 | GrContext* context = srcTexture->getContext(); |
| 147 | |
| 148 | GrTextureDesc desc; |
| 149 | desc.fFlags = kRenderTarget_GrTextureFlagBit, |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 150 | desc.fWidth = bounds.width(); |
| 151 | desc.fHeight = bounds.height(); |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 152 | desc.fConfig = kRGBA_8888_GrPixelConfig; |
| 153 | |
| 154 | GrAutoScratchTexture dst(context, desc); |
| 155 | GrContext::AutoMatrix am; |
| 156 | am.setIdentity(context); |
| 157 | GrContext::AutoRenderTarget art(context, dst.texture()->asRenderTarget()); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 158 | GrContext::AutoClip acs(context, dstRect); |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 159 | GrEffectRef* effect; |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 160 | SkMatrix matrix(ctm); |
| 161 | matrix.postTranslate(SkIntToScalar(-bounds.left()), SkIntToScalar(-bounds.top())); |
| 162 | this->asNewEffect(&effect, srcTexture, matrix); |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 163 | SkASSERT(effect); |
| 164 | SkAutoUnref effectRef(effect); |
| 165 | GrPaint paint; |
commit-bot@chromium.org | 42dacab | 2013-07-13 17:24:24 +0000 | [diff] [blame] | 166 | paint.addColorEffect(effect); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 167 | context->drawRectToRect(paint, dstRect, srcRect); |
| 168 | |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 169 | SkAutoTUnref<GrTexture> resultTex(dst.detach()); |
senorblanco@chromium.org | 4e16bb2 | 2013-07-26 00:10:07 +0000 | [diff] [blame] | 170 | SkImageFilterUtils::WrapTexture(resultTex, bounds.width(), bounds.height(), result); |
| 171 | offset->fX += bounds.left(); |
| 172 | offset->fY += bounds.top(); |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 173 | return true; |
| 174 | #else |
senorblanco@chromium.org | c2594f4 | 2013-01-30 19:08:47 +0000 | [diff] [blame] | 175 | return false; |
senorblanco@chromium.org | d043cce | 2013-04-08 19:43:22 +0000 | [diff] [blame] | 176 | #endif |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 177 | } |
| 178 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 179 | bool SkImageFilter::applyCropRect(SkIRect* rect, const SkMatrix& matrix) const { |
| 180 | SkRect cropRect; |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 181 | #ifdef SK_CROP_RECT_IS_INT |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 182 | matrix.mapRect(&cropRect, SkRect::Make(fCropRect)); |
| 183 | SkIRect cropRectI; |
| 184 | cropRect.roundOut(&cropRectI); |
| 185 | // If the original crop rect edges were unset, max out the new crop edges |
| 186 | if (fCropRect.fLeft == SK_MinS32) cropRectI.fLeft = SK_MinS32; |
| 187 | if (fCropRect.fTop == SK_MinS32) cropRectI.fTop = SK_MinS32; |
| 188 | if (fCropRect.fRight == SK_MaxS32) cropRectI.fRight = SK_MaxS32; |
| 189 | if (fCropRect.fBottom == SK_MaxS32) cropRectI.fBottom = SK_MaxS32; |
senorblanco@chromium.org | b295fb6 | 2013-10-10 13:51:19 +0000 | [diff] [blame^] | 190 | #else |
| 191 | matrix.mapRect(&cropRect, fCropRect.fRect); |
| 192 | SkIRect cropRectI; |
| 193 | cropRect.roundOut(&cropRectI); |
| 194 | // If the original crop rect edges were unset, max out the new crop edges |
| 195 | if (!(fCropRect.fFlags & CropRect::kHasLeft_CropEdge)) cropRectI.fLeft = SK_MinS32; |
| 196 | if (!(fCropRect.fFlags & CropRect::kHasTop_CropEdge)) cropRectI.fTop = SK_MinS32; |
| 197 | if (!(fCropRect.fFlags & CropRect::kHasRight_CropEdge)) cropRectI.fRight = SK_MaxS32; |
| 198 | if (!(fCropRect.fFlags & CropRect::kHasBottom_CropEdge)) cropRectI.fBottom = SK_MaxS32; |
| 199 | #endif |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 200 | return rect->intersect(cropRectI); |
senorblanco@chromium.org | 194d775 | 2013-07-24 22:19:24 +0000 | [diff] [blame] | 201 | } |
| 202 | |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 203 | bool SkImageFilter::onFilterBounds(const SkIRect& src, const SkMatrix& ctm, |
| 204 | SkIRect* dst) { |
| 205 | *dst = src; |
| 206 | return true; |
| 207 | } |
| 208 | |
senorblanco@chromium.org | fbaea53 | 2013-08-27 21:37:01 +0000 | [diff] [blame] | 209 | bool SkImageFilter::asNewEffect(GrEffectRef**, GrTexture*, const SkMatrix&) const { |
senorblanco@chromium.org | bf2768b | 2012-08-20 15:43:14 +0000 | [diff] [blame] | 210 | return false; |
| 211 | } |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 212 | |
sugoi@google.com | a1c511b | 2013-02-21 15:02:28 +0000 | [diff] [blame] | 213 | bool SkImageFilter::asColorFilter(SkColorFilter**) const { |
| 214 | return false; |
senorblanco@chromium.org | 8d21f6c | 2012-10-12 19:14:06 +0000 | [diff] [blame] | 215 | } |