Generate list of GPU contexts outside tests

tests/WritePixelsTest.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkCanvas.h"
 #include "SkColorPriv.h"
 #include "SkMathPriv.h"
 #include "SkRegion.h"
 #include "SkSurface.h"
 #include "Test.h"
 #include "sk_tool_utils.h"
 
 #if SK_SUPPORT_GPU
-#include "GrContextFactory.h"
-#include "SkGpuDevice.h"
-#else
-class GrContext;
-class GrContextFactory;
+#include "GrContext.h"
 #endif
 
+#include <initializer_list>
+
 static const int DEV_W = 100, DEV_H = 100;
 static const SkIRect DEV_RECT = SkIRect::MakeWH(DEV_W, DEV_H);
 static const SkRect DEV_RECT_S = SkRect::MakeWH(DEV_W * SK_Scalar1,
                                                 DEV_H * SK_Scalar1);
 static const U8CPU DEV_PAD = 0xee;
 
 static SkPMColor get_canvas_color(int x, int y) {
     SkASSERT(x >= 0 && x < DEV_W);
     SkASSERT(y >= 0 && y < DEV_H);
 
@@ skipping 213 matching lines @@
                     return false;
                 }
             }
         }
         canvasPixels += canvasRowBytes/4;
     }
 
     return true;
 }
 
-enum DevType {
-    kRaster_DevType,
-#if SK_SUPPORT_GPU
-    kGpu_BottomLeft_DevType,
-    kGpu_TopLeft_DevType,
-#endif
-};
-
-struct CanvasConfig {
-    DevType fDevType;
-    bool fTightRowBytes;
-};
-
-static const CanvasConfig gCanvasConfigs[] = {
-    {kRaster_DevType, true},
-    {kRaster_DevType, false},
-#if SK_SUPPORT_GPU
-    {kGpu_BottomLeft_DevType, true}, // row bytes has no meaning on gpu devices
-    {kGpu_TopLeft_DevType, true}, // row bytes has no meaning on gpu devices
-#endif
-};
-
 #include "SkMallocPixelRef.h"
 
 // This is a tricky pattern, because we have to setConfig+rowBytes AND specify
 // a custom pixelRef (which also has to specify its rowBytes), so we have to be
 // sure that the two rowBytes match (and the infos match).
 //
 static bool alloc_row_bytes(SkBitmap* bm, const SkImageInfo& info, size_t rowBytes) {
     if (!bm->setInfo(info, rowBytes)) {
         return false;
     }
     SkPixelRef* pr = SkMallocPixelRef::NewAllocate(info, rowBytes, nullptr);
     bm->setPixelRef(pr)->unref();
     return true;
 }
 
 static void free_pixels(void* pixels, void* ctx) {
     sk_free(pixels);
 }
 
-static SkSurface* create_surface(const CanvasConfig& c, GrContext* grCtx) {
-    SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
-    switch (c.fDevType) {
-        case kRaster_DevType: {
-            const size_t rowBytes = c.fTightRowBytes ? info.minRowBytes() : 4 * DEV_W + 100;
-            const size_t size = info.getSafeSize(rowBytes);
-            void* pixels = sk_malloc_throw(size);
-            // if rowBytes isn't tight then set the padding to a known value
-            if (!c.fTightRowBytes) {
-                memset(pixels, DEV_PAD, size);
-            }
-            return SkSurface::NewRasterDirectReleaseProc(info, pixels, rowBytes, free_pixels, nullptr);
-        }
-#if SK_SUPPORT_GPU
-        case kGpu_BottomLeft_DevType:
-        case kGpu_TopLeft_DevType:
-            GrSurfaceDesc desc;
-            desc.fFlags = kRenderTarget_GrSurfaceFlag;
-            desc.fWidth = DEV_W;
-            desc.fHeight = DEV_H;
-            desc.fConfig = kSkia8888_GrPixelConfig;
-            desc.fOrigin = kGpu_TopLeft_DevType == c.fDevType ?
-                kTopLeft_GrSurfaceOrigin : kBottomLeft_GrSurfaceOrigin;
-            SkAutoTUnref<GrTexture> texture(grCtx->textureProvider()->createTexture(desc, false));
-            return SkSurface::NewRenderTargetDirect(texture->asRenderTarget());
-#endif
-    }
-    return nullptr;
-}
-
 static bool setup_bitmap(SkBitmap* bm, SkColorType ct, SkAlphaType at, int w, int h, int tightRB) {
     size_t rowBytes = tightRB ? 0 : 4 * w + 60;
     SkImageInfo info = SkImageInfo::Make(w, h, ct, at);
     if (!alloc_row_bytes(bm, info, rowBytes)) {
         return false;
     }
     SkAutoLockPixels alp(*bm);
     for (int y = 0; y < h; ++y) {
         for (int x = 0; x < w; ++x) {
             *bm->getAddr32(x, y) = get_bitmap_color(x, y, w, ct, at);
         }
     }
     return true;
 }
 
 static void call_writepixels(SkCanvas* canvas) {
     const SkImageInfo info = SkImageInfo::MakeN32Premul(1, 1);
     SkPMColor pixel = 0;
     canvas->writePixels(info, &pixel, sizeof(SkPMColor), 0, 0);
 }
 
-static void test_surface_genid(skiatest::Reporter* reporter) {
+DEF_TEST(WritePixelsSurfaceGenID, reporter) {
     const SkImageInfo info = SkImageInfo::MakeN32Premul(100, 100);
     SkAutoTUnref<SkSurface> surface(SkSurface::NewRaster(info));
     uint32_t genID1 = surface->generationID();
     call_writepixels(surface->getCanvas());
     uint32_t genID2 = surface->generationID();
     REPORTER_ASSERT(reporter, genID1 != genID2);
 }
 
-DEF_GPUTEST(WritePixels, reporter, factory) {
-    test_surface_genid(reporter);
-
-    SkCanvas canvas;
-
+static void test_write_pixels(skiatest::Reporter* reporter, SkSurface* surface) {
     const SkIRect testRects[] = {
         // entire thing
         DEV_RECT,
         // larger on all sides
         SkIRect::MakeLTRB(-10, -10, DEV_W + 10, DEV_H + 10),
         // fully contained
         SkIRect::MakeLTRB(DEV_W / 4, DEV_H / 4, 3 * DEV_W / 4, 3 * DEV_H / 4),
         // outside top left
         SkIRect::MakeLTRB(-10, -10, -1, -1),
         // touching top left corner
@@ skipping 27 matching lines @@
         // overlapping bottom left and bottom right corners
         SkIRect::MakeLTRB(-10, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
         // touching entire left edge
         SkIRect::MakeLTRB(0, DEV_H, DEV_W, DEV_H + 10),
         // overlapping bottom right corner
         SkIRect::MakeLTRB(3 * DEV_W / 4, 3 * DEV_H / 4, DEV_W + 10, DEV_H + 10),
         // overlapping top right and bottom right corners
         SkIRect::MakeLTRB(3 * DEV_W / 4, -10, DEV_W + 10, DEV_H + 10),
     };
 
-    for (size_t i = 0; i < SK_ARRAY_COUNT(gCanvasConfigs); ++i) {
-        int glCtxTypeCnt = 1;
-#if SK_SUPPORT_GPU
-        bool isGPUDevice = kGpu_TopLeft_DevType == gCanvasConfigs[i].fDevType ||
-                           kGpu_BottomLeft_DevType == gCanvasConfigs[i].fDevType;
-        if (isGPUDevice) {
-            glCtxTypeCnt = GrContextFactory::kGLContextTypeCnt;
-        }
-#endif
-        for (int glCtxType = 0; glCtxType < glCtxTypeCnt; ++glCtxType) {
-            GrContext* context = nullptr;
-#if SK_SUPPORT_GPU
-            if (isGPUDevice) {
-                GrContextFactory::GLContextType type =
-                    static_cast<GrContextFactory::GLContextType>(glCtxType);
-                if (!GrContextFactory::IsRenderingGLContext(type)) {
-                    continue;
-                }
-                context = factory->get(type);
-                if (nullptr == context) {
-                    continue;
-                }
-            }
-#endif
+    SkCanvas& canvas = *surface->getCanvas();
 
-            SkAutoTUnref<SkSurface> surface(create_surface(gCanvasConfigs[i], context));
-            SkCanvas& canvas = *surface->getCanvas();
+    static const struct {
+        SkColorType fColorType;
+        SkAlphaType fAlphaType;
+    } gSrcConfigs[] = {
+        { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
+        { kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
+        { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
+        { kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
+    };
+    for (size_t r = 0; r < SK_ARRAY_COUNT(testRects); ++r) {
+        const SkIRect& rect = testRects[r];
+        for (int tightBmp = 0; tightBmp < 2; ++tightBmp) {
+            for (size_t c = 0; c < SK_ARRAY_COUNT(gSrcConfigs); ++c) {
+                const SkColorType ct = gSrcConfigs[c].fColorType;
+                const SkAlphaType at = gSrcConfigs[c].fAlphaType;
 
-            static const struct {
-                SkColorType fColorType;
-                SkAlphaType fAlphaType;
-            } gSrcConfigs[] = {
-                { kRGBA_8888_SkColorType, kPremul_SkAlphaType },
-                { kRGBA_8888_SkColorType, kUnpremul_SkAlphaType },
-                { kBGRA_8888_SkColorType, kPremul_SkAlphaType },
-                { kBGRA_8888_SkColorType, kUnpremul_SkAlphaType },
-            };
-            for (size_t r = 0; r < SK_ARRAY_COUNT(testRects); ++r) {
-                const SkIRect& rect = testRects[r];
-                for (int tightBmp = 0; tightBmp < 2; ++tightBmp) {
-                    for (size_t c = 0; c < SK_ARRAY_COUNT(gSrcConfigs); ++c) {
-                        const SkColorType ct = gSrcConfigs[c].fColorType;
-                        const SkAlphaType at = gSrcConfigs[c].fAlphaType;
+                fill_canvas(&canvas);
+                SkBitmap bmp;
+                REPORTER_ASSERT(reporter, setup_bitmap(&bmp, ct, at, rect.width(),
+                                                       rect.height(), SkToBool(tightBmp)));
+                uint32_t idBefore = surface->generationID();
 
-                        fill_canvas(&canvas);
-                        SkBitmap bmp;
-                        REPORTER_ASSERT(reporter, setup_bitmap(&bmp, ct, at, rect.width(),
-                                                               rect.height(), SkToBool(tightBmp)));
-                        uint32_t idBefore = surface->generationID();
+                // sk_tool_utils::write_pixels(&canvas, bmp, rect.fLeft, rect.fTop, ct, at);
+                canvas.writePixels(bmp, rect.fLeft, rect.fTop);
 
-                       // sk_tool_utils::write_pixels(&canvas, bmp, rect.fLeft, rect.fTop, ct, at);
-                        canvas.writePixels(bmp, rect.fLeft, rect.fTop);
+                uint32_t idAfter = surface->generationID();
+                REPORTER_ASSERT(reporter, check_write(reporter, &canvas, bmp,
+                                                      rect.fLeft, rect.fTop));
 
-                        uint32_t idAfter = surface->generationID();
-                        REPORTER_ASSERT(reporter, check_write(reporter, &canvas, bmp,
-                                                              rect.fLeft, rect.fTop));
-
-                        // we should change the genID iff pixels were actually written.
-                        SkIRect canvasRect = SkIRect::MakeSize(canvas.getDeviceSize());
-                        SkIRect writeRect = SkIRect::MakeXYWH(rect.fLeft, rect.fTop,
-                                                              bmp.width(), bmp.height());
-                        bool intersects = SkIRect::Intersects(canvasRect, writeRect) ;
-                        REPORTER_ASSERT(reporter, intersects == (idBefore != idAfter));
-                    }
-                }
+                // we should change the genID iff pixels were actually written.
+                SkIRect canvasRect = SkIRect::MakeSize(canvas.getDeviceSize());
+                SkIRect writeRect = SkIRect::MakeXYWH(rect.fLeft, rect.fTop,
+                                                      bmp.width(), bmp.height());
+                bool intersects = SkIRect::Intersects(canvasRect, writeRect) ;
+                REPORTER_ASSERT(reporter, intersects == (idBefore != idAfter));
             }
         }
     }
 }
+DEF_TEST(WritePixels, reporter) {
+    const SkImageInfo info = SkImageInfo::MakeN32Premul(DEV_W, DEV_H);
+    for (auto& tightRowBytes : { true, false }) {
+        const size_t rowBytes = tightRowBytes ? info.minRowBytes() : 4 * DEV_W + 100;
+        const size_t size = info.getSafeSize(rowBytes);
+        void* pixels = sk_malloc_throw(size);
+        // if rowBytes isn't tight then set the padding to a known value
+        if (!tightRowBytes) {
+            memset(pixels, DEV_PAD, size);
+        }
+        SkAutoTUnref<SkSurface> surface(SkSurface::NewRasterDirectReleaseProc(info, pixels, rowBytes, free_pixels, nullptr));
+        test_write_pixels(reporter, surface);
+    }
+}
+#if SK_SUPPORT_GPU
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(WritePixels_Gpu, reporter, context) {
+    for (auto& origin : { kTopLeft_GrSurfaceOrigin, kBottomLeft_GrSurfaceOrigin }) {
+        GrSurfaceDesc desc;
+        desc.fFlags = kRenderTarget_GrSurfaceFlag;
+        desc.fWidth = DEV_W;
+        desc.fHeight = DEV_H;
+        desc.fConfig = kSkia8888_GrPixelConfig;
+        desc.fOrigin = origin;
+        SkAutoTUnref<GrTexture> texture(context->textureProvider()->createTexture(desc, false));
+        SkAutoTUnref<SkSurface> surface(SkSurface::NewRenderTargetDirect(texture->asRenderTarget()));
+        test_write_pixels(reporter, surface);
+    }
+}
+#endif