Add Gr*Proxy classes

tests/ProxyTest.cpp

+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+// This is a GPU-backend specific test.
+
+#include "Test.h"
+
+#if SK_SUPPORT_GPU
+#include "GrSurfaceProxy.h"
+#include "GrTextureProxy.h"
+#include "GrRenderTargetProxy.h"
+
+static void check_surface(skiatest::Reporter* reporter,
+                          GrSurfaceProxy* proxy,
+                          GrSurfaceOrigin origin,
+                          int width, int height, 
+                          GrPixelConfig config) {
+    REPORTER_ASSERT(reporter, proxy->origin() == origin);
+    REPORTER_ASSERT(reporter, proxy->width() == width);
+    REPORTER_ASSERT(reporter, proxy->height() == height);
+    REPORTER_ASSERT(reporter, proxy->config() == config);
+}
+
+static void check_rendertarget(skiatest::Reporter* reporter,
+                               GrTextureProvider* provider,
+                               GrRenderTargetProxy* rtProxy,
+                               GrSurfaceProxy::BackingFit fit) {
+    REPORTER_ASSERT(reporter, rtProxy->asTextureProxy() == nullptr); // for now
+    REPORTER_ASSERT(reporter, rtProxy->asRenderTargetProxy() == rtProxy);
+
+    GrRenderTarget* rt = rtProxy->instantiate(provider);
+    REPORTER_ASSERT(reporter, rt);
+
+    REPORTER_ASSERT(reporter, rt->origin() == rtProxy->origin());
+    if (GrSurfaceProxy::kExact_BackingFit == fit) {
+        REPORTER_ASSERT(reporter, rt->width() == rtProxy->width());
+        REPORTER_ASSERT(reporter, rt->height() == rtProxy->height());
+    } else {
+        REPORTER_ASSERT(reporter, rt->width() >= rtProxy->width());
+        REPORTER_ASSERT(reporter, rt->height() >= rtProxy->height());    
+    }
+    REPORTER_ASSERT(reporter, rt->config() == rtProxy->config());
+
+    REPORTER_ASSERT(reporter, rt->isUnifiedMultisampled() == rtProxy->isUnifiedMultisampled());
+    REPORTER_ASSERT(reporter, rt->isStencilBufferMultisampled() ==
+                              rtProxy->isStencilBufferMultisampled());
+    REPORTER_ASSERT(reporter, rt->numColorSamples() == rtProxy->numColorSamples());
+    REPORTER_ASSERT(reporter, rt->numStencilSamples() == rtProxy->numStencilSamples());
+    REPORTER_ASSERT(reporter, rt->hasMixedSamples() == rtProxy->hasMixedSamples());
+}
+
+static void check_texture(skiatest::Reporter* reporter,
+                          GrTextureProvider* provider,
+                          GrTextureProxy* texProxy,
+                          GrSurfaceProxy::BackingFit fit) {
+    REPORTER_ASSERT(reporter, texProxy->asTextureProxy() == texProxy);
+    REPORTER_ASSERT(reporter, texProxy->asRenderTargetProxy() == nullptr); // for now
+
+    GrTexture* tex = texProxy->instantiate(provider);
+    REPORTER_ASSERT(reporter, tex);
+
+    REPORTER_ASSERT(reporter, tex->origin() == texProxy->origin());
+    if (GrSurfaceProxy::kExact_BackingFit == fit) {
+        REPORTER_ASSERT(reporter, tex->width() == texProxy->width());
+        REPORTER_ASSERT(reporter, tex->height() == texProxy->height());
+    } else {
+        REPORTER_ASSERT(reporter, tex->width() >= texProxy->width());
+        REPORTER_ASSERT(reporter, tex->height() >= texProxy->height());
+    }
+    REPORTER_ASSERT(reporter, tex->config() == texProxy->config());
+}
+
+
+DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(AllocedProxyTest, reporter, ctxInfo) {
+    GrTextureProvider* provider = ctxInfo.fGrContext->textureProvider();
+
+    for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
+        for (auto widthHeight : { 100, 128 }) {
+            for (auto config : { kAlpha_8_GrPixelConfig, kRGBA_8888_GrPixelConfig }) {
+                for (auto fit : { GrSurfaceProxy::kExact_BackingFit,
+                                  GrSurfaceProxy::kApprox_BackingFit }) {
+                    for (auto budgeted : { SkBudgeted::kYes, SkBudgeted::kNo }) {
+                        for (auto numSamples : { 0, 4}) {
+                            GrSurfaceDesc desc;
+                            desc.fOrigin = origin;
+                            desc.fWidth = widthHeight;
+                            desc.fHeight = widthHeight;
+                            desc.fConfig = config;
+                            desc.fSampleCnt = numSamples;
+
+                            sk_sp<GrRenderTargetProxy> rtProxy(GrRenderTargetProxy::Make(
+                                                                    *ctxInfo.fGrContext->caps(),
+                                                                    desc, 
+                                                                    fit,
+                                                                    budgeted));
+                            check_surface(reporter, rtProxy.get(), origin,
+                                          widthHeight, widthHeight, config);
+                            check_rendertarget(reporter, provider, rtProxy.get(), fit);
+
+                            desc.fSampleCnt = 0;
+
+                            sk_sp<GrTextureProxy> texProxy(GrTextureProxy::Make(desc,
+                                                                                fit,
+                                                                                budgeted));
+                            check_surface(reporter, texProxy.get(), origin,
+                                          widthHeight, widthHeight, config);
+                            check_texture(reporter, provider, texProxy.get(), fit);
+                        }
+                    }
+                }
+            }
+        }
+    }
+}
+
+DEF_GPUTEST_FOR_GL_RENDERING_CONTEXTS(WrappedProxyTest, reporter, ctxInfo) {
+    GrTextureProvider* provider = ctxInfo.fGrContext->textureProvider();
+
+    static const int kWidthHeight = 100;
+
+    for (auto origin : { kBottomLeft_GrSurfaceOrigin, kTopLeft_GrSurfaceOrigin }) {
+        for (auto config : { kAlpha_8_GrPixelConfig, kRGBA_8888_GrPixelConfig }) {
+            for (auto budgeted : { SkBudgeted::kYes, SkBudgeted::kNo }) {
+                for (auto numSamples: { 0, 4}) {
+                    GrSurfaceDesc desc;
+                    desc.fFlags = kRenderTarget_GrSurfaceFlag;
+                    desc.fOrigin = origin;
+                    desc.fWidth = kWidthHeight;
+                    desc.fHeight = kWidthHeight;
+                    desc.fConfig = config;
+                    desc.fSampleCnt = numSamples;
+
+                    sk_sp<GrTexture> tex(provider->createTexture(desc, budgeted));
+                    sk_sp<GrRenderTarget> rt(sk_ref_sp(tex->asRenderTarget()));
+
+                    sk_sp<GrRenderTargetProxy> rtProxy(GrRenderTargetProxy::Make(rt));
+                    check_surface(reporter, rtProxy.get(), origin,
+                                  kWidthHeight, kWidthHeight, config);
+                    check_rendertarget(reporter, provider, rtProxy.get(),
+                                       GrSurfaceProxy::kExact_BackingFit);
+
+                    sk_sp<GrTextureProxy> texProxy(GrTextureProxy::Make(tex));
+                    check_surface(reporter, texProxy.get(), origin,
+                                  kWidthHeight, kWidthHeight, config);
+                    check_texture(reporter, provider, texProxy.get(),
+                                  GrSurfaceProxy::kExact_BackingFit);
+                }
+            }
+        }
+    }
+}
+
+#endif