1/* 2 * Copyright 2011 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.h" 11 12#if SK_SUPPORT_GPU 13#include "GrContext.h" 14#include "GrContextPriv.h" 15#include "GrProxyProvider.h" 16#include "GrRenderTargetContext.h" 17#include "GrTextureContext.h" 18#include "GrFixedClip.h" 19#include "SkColorPriv.h" 20#include "SkGr.h" 21#include "effects/GrPorterDuffXferProcessor.h" 22#include "effects/GrSimpleTextureEffect.h" 23 24constexpr int S = 200; 25constexpr int kStride = 2 * S; 26 27// Fill in the pixels: 28// gray | white 29// ------------- 30// black | gray 31static void fill_in_pixels(SkPMColor* pixels) { 32 const SkPMColor gray = SkPackARGB32(0x40, 0x40, 0x40, 0x40); 33 const SkPMColor white = SkPackARGB32(0xff, 0xff, 0xff, 0xff); 34 const SkPMColor black = SkPackARGB32(0x00, 0x00, 0x00, 0x00); 35 36 int offset = 0; 37 38 // fill upper-left 39 for (int y = 0; y < S; ++y) { 40 for (int x = 0; x < S; ++x) { 41 pixels[offset + y * kStride + x] = gray; 42 } 43 } 44 // fill upper-right 45 offset = S; 46 for (int y = 0; y < S; ++y) { 47 for (int x = 0; x < S; ++x) { 48 pixels[offset + y * kStride + x] = white; 49 } 50 } 51 // fill lower left 52 offset = S * kStride; 53 for (int y = 0; y < S; ++y) { 54 for (int x = 0; x < S; ++x) { 55 pixels[offset + y * kStride + x] = black; 56 } 57 } 58 // fill lower right 59 offset = S * kStride + S; 60 for (int y = 0; y < S; ++y) { 61 for (int x = 0; x < S; ++x) { 62 pixels[offset + y * kStride + x] = gray; 63 } 64 } 65} 66 67DEF_SIMPLE_GM_BG(texdata, canvas, 2 * S, 2 * S, SK_ColorBLACK) { 68 GrRenderTargetContext* renderTargetContext = 69 canvas->internal_private_accessTopLayerRenderTargetContext(); 70 if (!renderTargetContext) { 71 skiagm::GM::DrawGpuOnlyMessage(canvas); 72 return; 73 } 74 75 GrContext* context = canvas->getGrContext(); 76 if (!context) { 77 return; 78 } 79 80 GrProxyProvider* proxyProvider = context->contextPriv().proxyProvider(); 81 const SkImageInfo ii = SkImageInfo::Make(S, S, kBGRA_8888_SkColorType, kPremul_SkAlphaType); 82 83 SkAutoTArray<SkPMColor> gTextureData((2 * S) * (2 * S)); 84 const SkPMColor red = SkPackARGB32(0x80, 0x80, 0x00, 0x00); 85 const SkPMColor blue = SkPackARGB32(0x80, 0x00, 0x00, 0x80); 86 const SkPMColor green = SkPackARGB32(0x80, 0x00, 0x80, 0x00); 87 for (int i = 0; i < 2; ++i) { 88 fill_in_pixels(gTextureData.get()); 89 90 GrSurfaceDesc desc; 91 desc.fOrigin = i ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin; 92 desc.fWidth = 2 * S; 93 desc.fHeight = 2 * S; 94 desc.fConfig = SkImageInfo2GrPixelConfig(ii, *context->caps()); 95 96 sk_sp<GrTextureProxy> proxy = proxyProvider->createTextureProxy(desc, SkBudgeted::kNo, 97 gTextureData.get(), 0); 98 if (!proxy) { 99 return; 100 } 101 102 sk_sp<GrSurfaceContext> tContext = context->contextPriv().makeWrappedSurfaceContext( 103 std::move(proxy)); 104 105 if (!tContext) { 106 return; 107 } 108 109 // setup new clip 110 GrFixedClip clip(SkIRect::MakeWH(2*S, 2*S)); 111 112 GrPaint paint; 113 paint.setPorterDuffXPFactory(SkBlendMode::kSrcOver); 114 115 SkMatrix vm; 116 if (i) { 117 vm.setRotate(90 * SK_Scalar1, S * SK_Scalar1, S * SK_Scalar1); 118 } else { 119 vm.reset(); 120 } 121 paint.addColorTextureProcessor(tContext->asTextureProxyRef(), vm); 122 123 renderTargetContext->drawRect(clip, GrPaint::Clone(paint), GrAA::kNo, vm, 124 SkRect::MakeWH(2 * S, 2 * S)); 125 126 // now update the lower right of the texture in first pass 127 // or upper right in second pass 128 for (int y = 0; y < S; ++y) { 129 for (int x = 0; x < S; ++x) { 130 gTextureData[y * kStride + x] = ((x + y) % 2) ? (i ? green : red) : blue; 131 } 132 } 133 134 if (!tContext->writePixels(ii, gTextureData.get(), 4 * kStride, S, i ? 0 : S)) { 135 continue; 136 } 137 138 renderTargetContext->drawRect(clip, std::move(paint), GrAA::kNo, vm, 139 SkRect::MakeWH(2 * S, 2 * S)); 140 } 141} 142#endif 143 144