Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 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 | // This test only works with the GPU backend. |
| 9 | |
| 10 | #include "gm/gm.h" |
| 11 | #include "include/core/SkBitmap.h" |
| 12 | #include "include/core/SkCanvas.h" |
| 13 | #include "include/core/SkColor.h" |
| 14 | #include "include/core/SkMatrix.h" |
| 15 | #include "include/core/SkPaint.h" |
| 16 | #include "include/core/SkRect.h" |
| 17 | #include "include/core/SkSize.h" |
| 18 | #include "include/core/SkString.h" |
| 19 | #include "include/effects/SkGradientShader.h" |
| 20 | #include "include/private/GrTypesPriv.h" |
| 21 | #include "include/private/SkTArray.h" |
| 22 | #include "src/gpu/GrBitmapTextureMaker.h" |
| 23 | #include "src/gpu/GrContextPriv.h" |
| 24 | #include "src/gpu/GrProxyProvider.h" |
| 25 | #include "src/gpu/GrRenderTargetContext.h" |
| 26 | #include "src/gpu/GrRenderTargetContextPriv.h" |
| 27 | #include "src/gpu/GrSamplerState.h" |
| 28 | #include "src/gpu/GrTextureProxy.h" |
| 29 | #include "tools/Resources.h" |
| 30 | #include "tools/gpu/TestOps.h" |
| 31 | |
| 32 | #include <memory> |
| 33 | #include <utility> |
| 34 | |
| 35 | namespace skiagm { |
| 36 | /** |
| 37 | * This GM directly exercises GrTextureEffect::MakeTexelSubset. |
| 38 | */ |
| 39 | class TexelSubset : public GpuGM { |
| 40 | public: |
| 41 | TexelSubset(GrSamplerState::Filter filter, bool upscale) : fFilter(filter), fUpscale(upscale) { |
| 42 | this->setBGColor(0xFFFFFFFF); |
| 43 | } |
| 44 | |
| 45 | protected: |
| 46 | SkString onShortName() override { |
| 47 | SkString name("texel_subset"); |
| 48 | switch (fFilter) { |
| 49 | case GrSamplerState::Filter::kNearest: |
| 50 | name.append("_nearest"); |
| 51 | break; |
| 52 | case GrSamplerState::Filter::kBilerp: |
| 53 | name.append("_bilerp"); |
| 54 | break; |
| 55 | case GrSamplerState::Filter::kMipMap: |
| 56 | name.append("_mip_map"); |
| 57 | break; |
| 58 | } |
| 59 | name.append(fUpscale ? "_up" : "_down"); |
| 60 | return name; |
| 61 | } |
| 62 | |
| 63 | SkISize onISize() override { |
| 64 | int n = GrSamplerState::kWrapModeCount; |
| 65 | if (fFilter != GrSamplerState::Filter::kNearest) { |
| 66 | // Account for not supporting kMirror or kMirrorRepeat with filtering. |
| 67 | n -= 2; |
| 68 | } |
| 69 | int w = kTestPad + 2 * n * (kImageSize.width() + 2 * kDrawPad + kTestPad); |
| 70 | int h = kTestPad + 2 * n * (kImageSize.height() + 2 * kDrawPad + kTestPad); |
| 71 | return {w, h}; |
| 72 | } |
| 73 | |
| 74 | void onOnceBeforeDraw() override { |
| 75 | GetResourceAsBitmap("images/mandrill_128.png", &fBitmap); |
| 76 | // Make the bitmap non-square to detect any width/height confusion. |
| 77 | fBitmap.extractSubset(&fBitmap, SkIRect::MakeSize(fBitmap.dimensions()).makeInset(0, 20)); |
| 78 | SkASSERT(fBitmap.dimensions() == kImageSize); |
| 79 | } |
| 80 | |
| 81 | DrawResult onDraw(GrContext* context, GrRenderTargetContext* renderTargetContext, |
| 82 | SkCanvas* canvas, SkString* errorMsg) override { |
| 83 | GrMipMapped mipMapped = fFilter == GrSamplerState::Filter::kMipMap && |
| 84 | context->priv().caps()->mipMapSupport() |
| 85 | ? GrMipMapped::kYes : GrMipMapped::kNo; |
| 86 | GrBitmapTextureMaker maker(context, fBitmap); |
Greg Daniel | c61d7e3 | 2020-02-04 14:27:45 -0500 | [diff] [blame] | 87 | auto[view, grCT] = maker.view(mipMapped); |
Greg Daniel | cc104db | 2020-02-03 14:17:08 -0500 | [diff] [blame] | 88 | if (!view.proxy()) { |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 89 | *errorMsg = "Failed to create proxy."; |
| 90 | return DrawResult::kFail; |
| 91 | } |
| 92 | |
| 93 | SkIRect texelSubset; |
| 94 | // Use a smaller subset when upscaling so that wrap is hit on all sides of the rect we |
| 95 | // will draw. |
| 96 | if (fUpscale) { |
| 97 | texelSubset = SkIRect::MakeXYWH(fBitmap.width()/3 - 1, 2*fBitmap.height()/5 - 1, |
| 98 | fBitmap.width()/4 + 2, fBitmap.height()/5 + 2); |
| 99 | } else { |
| 100 | texelSubset = SkIRect::MakeXYWH( fBitmap.width()/8 - 1, fBitmap.height()/7 - 1, |
| 101 | 3*fBitmap.width()/5 + 2, 4*fBitmap.height()/5 + 2); |
| 102 | } |
| 103 | |
| 104 | SkTArray<SkMatrix> textureMatrices; |
| 105 | |
| 106 | SkRect a = SkRect::Make(texelSubset); |
Brian Salomon | 63a04a8 | 2020-02-03 10:47:05 -0500 | [diff] [blame] | 107 | SkRect b = fUpscale ? a.makeInset (.31f * a.width(), .31f * a.height()) |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 108 | : a.makeOutset(.25f * a.width(), .25f * a.height()); |
| 109 | textureMatrices.push_back().setRectToRect(a, b, SkMatrix::kFill_ScaleToFit); |
| 110 | |
| 111 | b = fUpscale ? a.makeInset (.25f * a.width(), .35f * a.height()) |
| 112 | : a.makeOutset(.20f * a.width(), .35f * a.height()); |
| 113 | textureMatrices.push_back().setRectToRect(a, b, SkMatrix::kFill_ScaleToFit); |
| 114 | textureMatrices.back().preRotate(45.f, a.centerX(), a.centerY()); |
| 115 | textureMatrices.back().postSkew(.05f, -.05f); |
| 116 | |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 117 | SkBitmap subsetBmp; |
| 118 | fBitmap.extractSubset(&subsetBmp, texelSubset); |
| 119 | subsetBmp.setImmutable(); |
| 120 | GrBitmapTextureMaker subsetMaker(context, subsetBmp); |
Greg Daniel | c61d7e3 | 2020-02-04 14:27:45 -0500 | [diff] [blame] | 121 | auto[subsetView, subsetCT] = subsetMaker.view(mipMapped); |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 122 | |
| 123 | SkRect localRect = SkRect::Make(fBitmap.bounds()).makeOutset(kDrawPad, kDrawPad); |
| 124 | |
| 125 | auto size = this->onISize(); |
| 126 | |
| 127 | SkScalar y = kDrawPad + kTestPad; |
| 128 | SkRect drawRect; |
| 129 | for (int tm = 0; tm < textureMatrices.count(); ++tm) { |
| 130 | for (int mx = 0; mx < GrSamplerState::kWrapModeCount; ++mx) { |
| 131 | SkScalar x = kDrawPad + kTestPad; |
| 132 | auto wmx = static_cast<GrSamplerState::WrapMode>(mx); |
| 133 | if (fFilter != GrSamplerState::Filter::kNearest && |
| 134 | (wmx == GrSamplerState::WrapMode::kRepeat || |
| 135 | wmx == GrSamplerState::WrapMode::kMirrorRepeat)) { |
| 136 | // [Mirror] Repeat mode doesn't produce correct results with bilerp |
| 137 | // filtering |
| 138 | continue; |
| 139 | } |
| 140 | for (int my = 0; my < GrSamplerState::kWrapModeCount; ++my) { |
| 141 | auto wmy = static_cast<GrSamplerState::WrapMode>(my); |
| 142 | if (fFilter != GrSamplerState::Filter::kNearest && |
| 143 | (wmy == GrSamplerState::WrapMode::kRepeat || |
| 144 | wmy == GrSamplerState::WrapMode::kMirrorRepeat)) { |
| 145 | continue; |
| 146 | } |
| 147 | GrSamplerState sampler(wmx, wmy, fFilter); |
| 148 | const auto& caps = *context->priv().caps(); |
Greg Daniel | d2ccbb5 | 2020-02-05 10:45:39 -0500 | [diff] [blame] | 149 | auto fp1 = GrTextureEffect::MakeTexelSubset(view, |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 150 | fBitmap.alphaType(), |
| 151 | textureMatrices[tm], |
| 152 | sampler, |
| 153 | texelSubset, |
| 154 | caps); |
| 155 | if (!fp1) { |
| 156 | continue; |
| 157 | } |
| 158 | drawRect = localRect.makeOffset(x, y); |
| 159 | // Throw a translate in the local matrix just to test having something other |
| 160 | // than identity. Compensate with an offset local rect. |
| 161 | static constexpr SkVector kT = {-100, 300}; |
| 162 | if (auto op = sk_gpu_test::test_ops::MakeRect(context, |
| 163 | std::move(fp1), |
| 164 | drawRect, |
| 165 | localRect.makeOffset(kT), |
| 166 | SkMatrix::MakeTrans(-kT))) { |
| 167 | renderTargetContext->priv().testingOnly_addDrawOp(std::move(op)); |
| 168 | } |
| 169 | x += localRect.width() + kTestPad; |
| 170 | |
| 171 | SkMatrix subsetTextureMatrix = SkMatrix::Concat( |
| 172 | SkMatrix::MakeTrans(-texelSubset.topLeft()), textureMatrices[tm]); |
| 173 | |
| 174 | // Now draw with a subsetted proxy using fixed function texture sampling rather |
| 175 | // than a texture subset as a comparison. |
| 176 | drawRect = localRect.makeOffset(x, y); |
Greg Daniel | d2ccbb5 | 2020-02-05 10:45:39 -0500 | [diff] [blame] | 177 | auto fp2 = GrTextureEffect::Make(subsetView, fBitmap.alphaType(), |
| 178 | subsetTextureMatrix, |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 179 | GrSamplerState(wmx, wmy, fFilter), caps); |
| 180 | if (auto op = sk_gpu_test::test_ops::MakeRect(context, std::move(fp2), drawRect, |
| 181 | localRect)) { |
| 182 | renderTargetContext->priv().testingOnly_addDrawOp(std::move(op)); |
| 183 | } |
| 184 | if (my < GrSamplerState::kWrapModeCount - 1) { |
Brian Salomon | f1e316f | 2020-02-02 07:57:38 -0500 | [diff] [blame] | 185 | SkScalar midX = |
| 186 | SkScalarFloorToScalar(drawRect.right() + kTestPad/2.f) + 0.5f; |
| 187 | canvas->drawLine({midX, -1}, {midX, (float)size.fHeight+1}, {}); |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 188 | } |
| 189 | x += localRect.width() + kTestPad; |
| 190 | } |
| 191 | if (mx < GrSamplerState::kWrapModeCount - 1) { |
Brian Salomon | f1e316f | 2020-02-02 07:57:38 -0500 | [diff] [blame] | 192 | SkScalar midY = SkScalarFloorToScalar(drawRect.bottom() + kTestPad/2.f) + 0.5f; |
| 193 | canvas->drawLine({-1, midY}, {(float)size.fWidth+1, midY}, {}); |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 194 | } |
| 195 | y += localRect.height() + kTestPad; |
| 196 | } |
| 197 | if (tm < textureMatrices.count() - 1) { |
| 198 | SkPaint paint; |
| 199 | paint.setColor(SK_ColorRED); |
Brian Salomon | f1e316f | 2020-02-02 07:57:38 -0500 | [diff] [blame] | 200 | SkScalar midY = SkScalarFloorToScalar(drawRect.bottom() + kTestPad/2.f) + 0.5f; |
| 201 | canvas->drawLine({-1, midY}, {(float)size.fWidth + 1, midY}, paint); |
Brian Salomon | f033404 | 2020-01-31 16:16:39 -0500 | [diff] [blame] | 202 | } |
| 203 | } |
| 204 | return DrawResult::kOk; |
| 205 | } |
| 206 | |
| 207 | private: |
| 208 | static constexpr SkISize kImageSize = {128, 88}; |
| 209 | static constexpr SkScalar kDrawPad = 10.f; |
| 210 | static constexpr SkScalar kTestPad = 10.f; |
| 211 | SkBitmap fBitmap; |
| 212 | GrSamplerState::Filter fFilter; |
| 213 | bool fUpscale; |
| 214 | |
| 215 | typedef GM INHERITED; |
| 216 | }; |
| 217 | |
| 218 | DEF_GM(return new TexelSubset(GrSamplerState::Filter::kNearest, false);) |
| 219 | DEF_GM(return new TexelSubset(GrSamplerState::Filter::kNearest, true);) |
| 220 | DEF_GM(return new TexelSubset(GrSamplerState::Filter::kBilerp , false);) |
| 221 | DEF_GM(return new TexelSubset(GrSamplerState::Filter::kBilerp , true);) |
| 222 | // It doesn't make sense to have upscaling MIP map. |
| 223 | DEF_GM(return new TexelSubset(GrSamplerState::Filter::kMipMap, false);) |
| 224 | |
| 225 | } |