Generate list of GPU contexts outside tests

tests/ReadWriteAlphaTest.cpp

Index: tests/ReadWriteAlphaTest.cpp
diff --git a/tests/ReadWriteAlphaTest.cpp b/tests/ReadWriteAlphaTest.cpp
index 301bf6b78e428c9d256d6dba0906ca174f10f33f..a40f2c64576c4f498a3993834550234bd7109314 100644
--- a/tests/ReadWriteAlphaTest.cpp
+++ b/tests/ReadWriteAlphaTest.cpp
@@ -10,106 +10,95 @@
 // This test is specific to the GPU backend.
 #if SK_SUPPORT_GPU && !defined(SK_BUILD_FOR_ANDROID)
 
-#include "GrContextFactory.h"
+#include "GrContext.h"
 #include "SkGpuDevice.h"
 
 static const int X_SIZE = 12;
 static const int Y_SIZE = 12;
 
-DEF_GPUTEST(ReadWriteAlpha, reporter, factory) {
-    for (int type = 0; type < GrContextFactory::kLastGLContextType; ++type) {
-        GrContextFactory::GLContextType glType = static_cast<GrContextFactory::GLContextType>(type);
-        if (!GrContextFactory::IsRenderingGLContext(glType)) {
-            continue;
-        }
-        GrContext* context = factory->get(glType);
-        if (nullptr == context) {
-            continue;
-        }
-
-        unsigned char textureData[X_SIZE][Y_SIZE];
+DEF_GPUTEST_FOR_RENDERING_CONTEXTS(ReadWriteAlpha, reporter, context) {
+    unsigned char textureData[X_SIZE][Y_SIZE];
 
-        memset(textureData, 0, X_SIZE * Y_SIZE);
+    memset(textureData, 0, X_SIZE * Y_SIZE);
 
-        GrSurfaceDesc desc;
+    GrSurfaceDesc desc;
 
-        // let Skia know we will be using this texture as a render target
-        desc.fFlags     = kRenderTarget_GrSurfaceFlag;
-        // it is a single channel texture
-        desc.fConfig    = kAlpha_8_GrPixelConfig;
-        desc.fWidth     = X_SIZE;
-        desc.fHeight    = Y_SIZE;
+    // let Skia know we will be using this texture as a render target
+    desc.fFlags     = kRenderTarget_GrSurfaceFlag;
+    // it is a single channel texture
+    desc.fConfig    = kAlpha_8_GrPixelConfig;
+    desc.fWidth     = X_SIZE;
+    desc.fHeight    = Y_SIZE;
 
-        // We are initializing the texture with zeros here
-        GrTexture* texture = context->textureProvider()->createTexture(desc, false, textureData, 0);
-        if (!texture) {
-            return;
-        }
+    // We are initializing the texture with zeros here
+    GrTexture* texture = context->textureProvider()->createTexture(desc, false, textureData, 0);
+    if (!texture) {
+        return;
+    }
 
-        SkAutoTUnref<GrTexture> au(texture);
+    SkAutoTUnref<GrTexture> au(texture);
 
-        // create a distinctive texture
-        for (int y = 0; y < Y_SIZE; ++y) {
-            for (int x = 0; x < X_SIZE; ++x) {
-                textureData[x][y] = x*Y_SIZE+y;
-            }
+    // create a distinctive texture
+    for (int y = 0; y < Y_SIZE; ++y) {
+        for (int x = 0; x < X_SIZE; ++x) {
+            textureData[x][y] = x*Y_SIZE+y;
         }
+    }
 
-        // upload the texture
-        texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
-                             textureData, 0);
+    // upload the texture
+    texture->writePixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
+                         textureData, 0);
 
-        unsigned char readback[X_SIZE][Y_SIZE];
+    unsigned char readback[X_SIZE][Y_SIZE];
 
-        // clear readback to something non-zero so we can detect readback failures
-        memset(readback, 0x1, X_SIZE * Y_SIZE);
+    // clear readback to something non-zero so we can detect readback failures
+    memset(readback, 0x1, X_SIZE * Y_SIZE);
 
-        // read the texture back
-        texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
-                            readback, 0);
+    // read the texture back
+    texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
+                        readback, 0);
 
-        // make sure the original & read back versions match
-        bool match = true;
+    // make sure the original & read back versions match
+    bool match = true;
 
-        for (int y = 0; y < Y_SIZE; ++y) {
-            for (int x = 0; x < X_SIZE; ++x) {
-                if (textureData[x][y] != readback[x][y]) {
-                    match = false;
-                }
+    for (int y = 0; y < Y_SIZE; ++y) {
+        for (int x = 0; x < X_SIZE; ++x) {
+            if (textureData[x][y] != readback[x][y]) {
+                match = false;
             }
         }
+    }
 
-        REPORTER_ASSERT(reporter, match);
+    REPORTER_ASSERT(reporter, match);
 
-        // Now try writing on the single channel texture
-        SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
-        SkAutoTUnref<SkBaseDevice> device(SkGpuDevice::Create(texture->asRenderTarget(), &props,
-                                                              SkGpuDevice::kUninit_InitContents));
-        SkCanvas canvas(device);
+    // Now try writing on the single channel texture
+    SkSurfaceProps props(SkSurfaceProps::kLegacyFontHost_InitType);
+    SkAutoTUnref<SkBaseDevice> device(SkGpuDevice::Create(texture->asRenderTarget(), &props,
+                                                          SkGpuDevice::kUninit_InitContents));
+    SkCanvas canvas(device);
 
-        SkPaint paint;
+    SkPaint paint;
 
-        const SkRect rect = SkRect::MakeLTRB(-10, -10, X_SIZE + 10, Y_SIZE + 10);
+    const SkRect rect = SkRect::MakeLTRB(-10, -10, X_SIZE + 10, Y_SIZE + 10);
 
-        paint.setColor(SK_ColorWHITE);
+    paint.setColor(SK_ColorWHITE);
 
-        canvas.drawRect(rect, paint);
+    canvas.drawRect(rect, paint);
 
-        texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
-                            readback, 0);
+    texture->readPixels(0, 0, desc.fWidth, desc.fHeight, desc.fConfig,
+                        readback, 0);
 
-        match = true;
+    match = true;
 
-        for (int y = 0; y < Y_SIZE; ++y) {
-            for (int x = 0; x < X_SIZE; ++x) {
-                if (0xFF != readback[x][y]) {
-                    match = false;
-                }
+    for (int y = 0; y < Y_SIZE; ++y) {
+        for (int x = 0; x < X_SIZE; ++x) {
+            if (0xFF != readback[x][y]) {
+                match = false;
             }
         }
-
-        REPORTER_ASSERT(reporter, match);
     }
+
+    REPORTER_ASSERT(reporter, match);
 }
 
 #endif