diff --git a/src/gpu/GrBackendSurface.cpp b/src/gpu/GrBackendSurface.cpp
index a9fd57f..406cb22 100644
--- a/src/gpu/GrBackendSurface.cpp
+++ b/src/gpu/GrBackendSurface.cpp
@@ -127,6 +127,19 @@
         , fBackend(kOpenGL_GrBackend)
         , fGLInfo(glInfo) {}
 
+GrBackendRenderTarget::GrBackendRenderTarget(int width,
+                                             int height,
+                                             int sampleCnt,
+                                             int stencilBits,
+                                             const GrGLFramebufferInfo& glInfo)
+        : fWidth(width)
+        , fHeight(height)
+        , fSampleCnt(sampleCnt)
+        , fStencilBits(stencilBits)
+        , fConfig(GrGLSizedFormatToPixelConfig(glInfo.fFormat))
+        , fBackend(kOpenGL_GrBackend)
+        , fGLInfo(glInfo) {}
+
 #ifdef SK_VULKAN
 const GrVkImageInfo* GrBackendRenderTarget::getVkImageInfo() const {
     if (kVulkan_GrBackend == fBackend) {
diff --git a/src/gpu/GrCaps.cpp b/src/gpu/GrCaps.cpp
index 598cb0a..da32ebf 100644
--- a/src/gpu/GrCaps.cpp
+++ b/src/gpu/GrCaps.cpp
@@ -218,11 +218,3 @@
     writer->endObject();
 }
 
-bool GrCaps::validateBackendTexture(GrBackendTexture* tex, SkColorType ct) const {
-    if (!this->onValidateBackendTexture(tex, ct)) {
-        return false;
-    }
-    return this->isConfigTexturable(tex->fConfig);
-}
-
-
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 86c8f92..60ecfd2 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -2361,62 +2361,82 @@
     return fConfigTable[config].fColorSampleCounts[count-1];
 }
 
-bool GrGLCaps::onValidateBackendTexture(GrBackendTexture* tex, SkColorType ct) const {
-    const GrGLTextureInfo* texInfo = tex->getGLTextureInfo();
-    if (!texInfo) {
-        return false;
-    }
-    GrGLenum format = texInfo->fFormat;
-    tex->fConfig = kUnknown_GrPixelConfig;
+bool validate_sized_format(GrGLenum format, SkColorType ct, GrPixelConfig* config,
+                           GrGLStandard standard) {
+    *config = kUnknown_GrPixelConfig;
 
     switch (ct) {
         case kUnknown_SkColorType:
             return false;
         case kAlpha_8_SkColorType:
             if (GR_GL_ALPHA8 == format) {
-                tex->fConfig = kAlpha_8_as_Alpha_GrPixelConfig;
+                *config = kAlpha_8_as_Alpha_GrPixelConfig;
             } else if (GR_GL_R8 == format) {
-                tex->fConfig = kAlpha_8_as_Red_GrPixelConfig;
+                *config = kAlpha_8_as_Red_GrPixelConfig;
             }
             break;
         case kRGB_565_SkColorType:
             if (GR_GL_RGB565 == format) {
-                tex->fConfig = kRGB_565_GrPixelConfig;
+                *config = kRGB_565_GrPixelConfig;
             }
             break;
         case kARGB_4444_SkColorType:
             if (GR_GL_RGBA4 == format) {
-                tex->fConfig = kRGBA_4444_GrPixelConfig;
+                *config = kRGBA_4444_GrPixelConfig;
             }
             break;
         case kRGBA_8888_SkColorType:
             if (GR_GL_RGBA8 == format) {
-                tex->fConfig = kRGBA_8888_GrPixelConfig;
+                *config = kRGBA_8888_GrPixelConfig;
             } else if (GR_GL_SRGB8_ALPHA8 == format) {
-                tex->fConfig = kSRGBA_8888_GrPixelConfig;
+                *config = kSRGBA_8888_GrPixelConfig;
             }
             break;
         case kBGRA_8888_SkColorType:
-            if (GR_GL_BGRA8 == format) {
-                tex->fConfig = kBGRA_8888_GrPixelConfig;
+            if (GR_GL_RGBA8 == format) {
+                if (kGL_GrGLStandard == standard) {
+                    *config = kBGRA_8888_GrPixelConfig;
+                }
+            } else if (GR_GL_BGRA8 == format) {
+                if (kGLES_GrGLStandard == standard) {
+                    *config = kBGRA_8888_GrPixelConfig;
+                }
             } else if (GR_GL_SRGB8_ALPHA8 == format) {
-                tex->fConfig = kSBGRA_8888_GrPixelConfig;
+                *config = kSBGRA_8888_GrPixelConfig;
             }
             break;
         case kGray_8_SkColorType:
             if (GR_GL_LUMINANCE8 == format) {
-                tex->fConfig = kGray_8_as_Lum_GrPixelConfig;
+                *config = kGray_8_as_Lum_GrPixelConfig;
             } else if (GR_GL_R8 == format) {
-                tex->fConfig = kGray_8_as_Red_GrPixelConfig;
+                *config = kGray_8_as_Red_GrPixelConfig;
             }
             break;
         case kRGBA_F16_SkColorType:
             if (GR_GL_RGBA16F == format) {
-                tex->fConfig = kRGBA_half_GrPixelConfig;
+                *config = kRGBA_half_GrPixelConfig;
             }
             break;
     }
 
-    return kUnknown_GrPixelConfig != tex->fConfig;
+    return kUnknown_GrPixelConfig != *config;
+}
+
+bool GrGLCaps::validateBackendTexture(const GrBackendTexture& tex, SkColorType ct,
+                                      GrPixelConfig* config) const {
+    const GrGLTextureInfo* texInfo = tex.getGLTextureInfo();
+    if (!texInfo) {
+        return false;
+    }
+    return validate_sized_format(texInfo->fFormat, ct, config, fStandard);
+}
+
+bool GrGLCaps::validateBackendRenderTarget(const GrBackendRenderTarget& rt, SkColorType ct,
+                                           GrPixelConfig* config) const {
+    const GrGLFramebufferInfo* fbInfo = rt.getGLFramebufferInfo();
+    if (!fbInfo) {
+        return false;
+    }
+    return validate_sized_format(fbInfo->fFormat, ct, config, fStandard);
 }
 
diff --git a/src/gpu/gl/GrGLCaps.h b/src/gpu/gl/GrGLCaps.h
index 38cbfe8..6efcc21 100644
--- a/src/gpu/gl/GrGLCaps.h
+++ b/src/gpu/gl/GrGLCaps.h
@@ -415,9 +415,12 @@
         return fProgramBinarySupport;
     }
 
-private:
-    bool onValidateBackendTexture(GrBackendTexture*, SkColorType) const override;
+    bool validateBackendTexture(const GrBackendTexture&, SkColorType,
+                                GrPixelConfig*) const override;
+    bool validateBackendRenderTarget(const GrBackendRenderTarget&, SkColorType,
+                                     GrPixelConfig*) const override;
 
+private:
     enum ExternalFormatUsage {
         kTexImage_ExternalFormatUsage,
         kOther_ExternalFormatUsage,
diff --git a/src/gpu/gl/GrGLRenderTarget.cpp b/src/gpu/gl/GrGLRenderTarget.cpp
index 3aa632c..443128d 100644
--- a/src/gpu/gl/GrGLRenderTarget.cpp
+++ b/src/gpu/gl/GrGLRenderTarget.cpp
@@ -82,6 +82,15 @@
     return sk_sp<GrGLRenderTarget>(new GrGLRenderTarget(gpu, desc, idDesc, sb));
 }
 
+GrBackendRenderTarget GrGLRenderTarget::getBackendRenderTarget() const {
+    GrGLFramebufferInfo fbi;
+    fbi.fFBOID = fRTFBOID;
+    fbi.fFormat = this->getGLGpu()->glCaps().configSizedInternalFormat(this->config());
+
+    return GrBackendRenderTarget(this->width(), this->height(), this->numColorSamples(),
+                                 this->numStencilSamples(), fbi);
+}
+
 size_t GrGLRenderTarget::onGpuMemorySize() const {
     return GrSurface::ComputeSize(this->config(), this->width(), this->height(),
                                   fNumSamplesOwnedPerPixel, GrMipMapped::kNo);
diff --git a/src/gpu/gl/GrGLRenderTarget.h b/src/gpu/gl/GrGLRenderTarget.h
index 28c6e3d..a448848 100644
--- a/src/gpu/gl/GrGLRenderTarget.h
+++ b/src/gpu/gl/GrGLRenderTarget.h
@@ -63,13 +63,7 @@
 
     GrBackendObject getRenderTargetHandle() const override { return fRTFBOID; }
 
-    GrBackendRenderTarget getBackendRenderTarget() const override {
-        GrGLFramebufferInfo fbi;
-        fbi.fFBOID = fRTFBOID;
-
-        return GrBackendRenderTarget(this->width(), this->height(), this->numColorSamples(),
-                                     this->numStencilSamples(), this->config(), fbi);
-    }
+    GrBackendRenderTarget getBackendRenderTarget() const override;
 
     bool canAttemptStencilAttachment() const override;
 
diff --git a/src/gpu/gl/GrGLTexture.cpp b/src/gpu/gl/GrGLTexture.cpp
index 597c213..9c7fe22 100644
--- a/src/gpu/gl/GrGLTexture.cpp
+++ b/src/gpu/gl/GrGLTexture.cpp
@@ -107,8 +107,7 @@
 }
 
 GrBackendTexture GrGLTexture::getBackendTexture() const {
-    return GrBackendTexture(this->width(), this->height(), this->config(),
-                            this->texturePriv().mipMapped(), fInfo);
+    return GrBackendTexture(this->width(), this->height(), this->texturePriv().mipMapped(), fInfo);
 }
 
 void GrGLTexture::setMemoryBacking(SkTraceMemoryDump* traceMemoryDump,
diff --git a/src/gpu/mock/GrMockCaps.h b/src/gpu/mock/GrMockCaps.h
index 37bde82..edec556 100644
--- a/src/gpu/mock/GrMockCaps.h
+++ b/src/gpu/mock/GrMockCaps.h
@@ -51,11 +51,17 @@
         return false;
     }
 
-private:
-    bool onValidateBackendTexture(GrBackendTexture* tex, SkColorType ct) const override {
-        return SkToBool(tex->getMockTextureInfo());
+    bool validateBackendTexture(const GrBackendTexture& tex, SkColorType,
+                                GrPixelConfig*) const override {
+        return SkToBool(tex.getMockTextureInfo());
     }
 
+    bool validateBackendRenderTarget(const GrBackendRenderTarget& rt, SkColorType,
+                                     GrPixelConfig*) const override {
+        return false;
+    }
+
+private:
     GrMockOptions fOptions;
     typedef GrCaps INHERITED;
 };
diff --git a/src/gpu/mtl/GrMtlCaps.h b/src/gpu/mtl/GrMtlCaps.h
index bc8aac9..70ff74f 100644
--- a/src/gpu/mtl/GrMtlCaps.h
+++ b/src/gpu/mtl/GrMtlCaps.h
@@ -56,11 +56,16 @@
         return false;
     }
 
-private:
-    bool onValidateBackendTexture(GrBackendTexture* tex, SkColorType ct) const override {
+    bool validateBackendTexture(const GrBackendTexture&, SkColorType,
+                                GrPixelConfig*) const override {
+        return false;
+    }
+    bool validateBackendRenderTarget(const GrBackendRenderTarget&, SkColorType,
+                                     GrPixelConfig*) const override {
         return false;
     }
 
+private:
     void initFeatureSet(MTLFeatureSet featureSet);
 
     void initGrCaps(const id<MTLDevice> device);
diff --git a/src/gpu/vk/GrVkCaps.cpp b/src/gpu/vk/GrVkCaps.cpp
index e6a018b..40cb38f 100644
--- a/src/gpu/vk/GrVkCaps.cpp
+++ b/src/gpu/vk/GrVkCaps.cpp
@@ -415,59 +415,67 @@
     return fConfigTable[config].fColorSampleCounts[count-1];
 }
 
-bool GrVkCaps::onValidateBackendTexture(GrBackendTexture* tex, SkColorType ct) const {
-    const GrVkImageInfo* imageInfo = tex->getVkImageInfo();
+bool validate_image_info(const GrVkImageInfo* imageInfo, SkColorType ct, GrPixelConfig* config) {
     if (!imageInfo) {
         return false;
     }
     VkFormat format = imageInfo->fFormat;
-    tex->fConfig = kUnknown_GrPixelConfig;
+    *config = kUnknown_GrPixelConfig;
 
     switch (ct) {
         case kUnknown_SkColorType:
             return false;
         case kAlpha_8_SkColorType:
             if (VK_FORMAT_R8_UNORM == format) {
-                tex->fConfig = kAlpha_8_as_Red_GrPixelConfig;
+                *config = kAlpha_8_as_Red_GrPixelConfig;
             }
             break;
         case kRGB_565_SkColorType:
             if (VK_FORMAT_R5G6B5_UNORM_PACK16 == format) {
-                tex->fConfig = kRGB_565_GrPixelConfig;
+                *config = kRGB_565_GrPixelConfig;
             }
             break;
         case kARGB_4444_SkColorType:
             if (VK_FORMAT_B4G4R4A4_UNORM_PACK16 == format) {
-                tex->fConfig = kRGBA_4444_GrPixelConfig;
+                *config = kRGBA_4444_GrPixelConfig;
             }
             break;
         case kRGBA_8888_SkColorType:
             if (VK_FORMAT_R8G8B8A8_UNORM == format) {
-                tex->fConfig = kRGBA_8888_GrPixelConfig;
+                *config = kRGBA_8888_GrPixelConfig;
             } else if (VK_FORMAT_R8G8B8A8_SRGB == format) {
-                tex->fConfig = kSRGBA_8888_GrPixelConfig;
+                *config = kSRGBA_8888_GrPixelConfig;
             }
             break;
         case kBGRA_8888_SkColorType:
             if (VK_FORMAT_B8G8R8A8_UNORM == format) {
-                tex->fConfig = kBGRA_8888_GrPixelConfig;
+                *config = kBGRA_8888_GrPixelConfig;
             } else if (VK_FORMAT_B8G8R8A8_SRGB == format) {
-                tex->fConfig = kSBGRA_8888_GrPixelConfig;
+                *config = kSBGRA_8888_GrPixelConfig;
             }
             break;
         case kGray_8_SkColorType:
             if (VK_FORMAT_R8_UNORM == format) {
-                tex->fConfig = kGray_8_as_Red_GrPixelConfig;
+                *config = kGray_8_as_Red_GrPixelConfig;
             }
             break;
         case kRGBA_F16_SkColorType:
             if (VK_FORMAT_R16G16B16A16_SFLOAT == format) {
-                tex->fConfig = kRGBA_half_GrPixelConfig;
+                *config = kRGBA_half_GrPixelConfig;
             }
             break;
     }
 
-    return kUnknown_GrPixelConfig != tex->fConfig;
+    return kUnknown_GrPixelConfig != *config;
 }
 
+bool GrVkCaps::validateBackendTexture(const GrBackendTexture& tex, SkColorType ct,
+                                      GrPixelConfig* config) const {
+    return validate_image_info(tex.getVkImageInfo(), ct, config);
+}
+
+bool GrVkCaps::validateBackendRenderTarget(const GrBackendRenderTarget& rt, SkColorType ct,
+                                           GrPixelConfig* config) const {
+    return validate_image_info(rt.getVkImageInfo(), ct, config);
+}
 
diff --git a/src/gpu/vk/GrVkCaps.h b/src/gpu/vk/GrVkCaps.h
index 8d0ab5d..ad0faf1 100644
--- a/src/gpu/vk/GrVkCaps.h
+++ b/src/gpu/vk/GrVkCaps.h
@@ -111,9 +111,12 @@
     bool initDescForDstCopy(const GrRenderTargetProxy* src, GrSurfaceDesc* desc,
                             bool* rectsMustMatch, bool* disallowSubrect) const override;
 
-private:
-    bool onValidateBackendTexture(GrBackendTexture*, SkColorType) const override;
+    bool validateBackendTexture(const GrBackendTexture&, SkColorType,
+                                GrPixelConfig*) const override;
+    bool validateBackendRenderTarget(const GrBackendRenderTarget&, SkColorType,
+                                     GrPixelConfig*) const override;
 
+private:
     enum VkVendor {
         kAMD_VkVendor = 4098,
         kImagination_VkVendor = 4112,