When setting up a copySurface dst texture make the orientation match the src when glBlitFramebuffer…

src/gpu/gl/GrGLGpu.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 "GrGLGpu.h"
 #include "GrGLBuffer.h"
 #include "GrGLGLSL.h"
@@ skipping 3484 matching lines @@
     if (srcTexture && srcTexture->target() != GR_GL_TEXTURE_2D) {
         // Not supported for FBO blit or CopyTexSubImage
         return false;
     }
 
     // We look for opportunities to use CopyTexSubImage, or fbo blit. If neither are
     // possible and we return false to fallback to creating a render target dst for render-to-
     // texture. This code prefers CopyTexSubImage to fbo blit and avoids triggering temporary fbo
     // creation. It isn't clear that avoiding temporary fbo creation is actually optimal.
 
+    GrSurfaceOrigin originForBlitFramebuffer = kDefault_GrSurfaceOrigin;
+    if (this->glCaps().blitFramebufferSupport() ==
+        GrGLCaps::kNoScalingNoMirroring_BlitFramebufferSupport) {
+        originForBlitFramebuffer = src->origin();
+    }
+
     // Check for format issues with glCopyTexSubImage2D
     if (kGLES_GrGLStandard == this->glStandard() && this->glCaps().bgraIsInternalFormat() &&
         kBGRA_8888_GrPixelConfig == src->config()) {
         // glCopyTexSubImage2D doesn't work with this config. If the bgra can be used with fbo blit
         // then we set up for that, otherwise fail.
         if (this->caps()->isConfigRenderable(kBGRA_8888_GrPixelConfig, false)) {
-            desc->fOrigin = kDefault_GrSurfaceOrigin;
+            desc->fOrigin = originForBlitFramebuffer;
             desc->fFlags = kRenderTarget_GrSurfaceFlag;
             desc->fConfig = kBGRA_8888_GrPixelConfig;
             return true;
         }
         return false;
     } else if (nullptr == src->asRenderTarget()) {
         // CopyTexSubImage2D or fbo blit would require creating a temp fbo for the src.
         return false;
     }
 
     const GrGLRenderTarget* srcRT = static_cast<const GrGLRenderTarget*>(src->asRenderTarget());
     if (srcRT && srcRT->renderFBOID() != srcRT->textureFBOID()) {
         // It's illegal to call CopyTexSubImage2D on a MSAA renderbuffer. Set up for FBO blit or
         // fail.
         if (this->caps()->isConfigRenderable(src->config(), false)) {
-            desc->fOrigin = kDefault_GrSurfaceOrigin;
+            desc->fOrigin = originForBlitFramebuffer;
             desc->fFlags = kRenderTarget_GrSurfaceFlag;
             desc->fConfig = src->config();
             return true;
         }
         return false;
     }
 
     // We'll do a CopyTexSubImage. Make the dst a plain old texture.
     desc->fConfig = src->config();
     desc->fOrigin = src->origin();
@@ skipping 709 matching lines @@
         if (GR_GL_TEXTURE_EXTERNAL == glTexture->target() ||
             GR_GL_TEXTURE_RECTANGLE == glTexture->target()) {
             copyParams->fFilter = GrTextureParams::kNone_FilterMode;
             copyParams->fWidth = texture->width();
             copyParams->fHeight = texture->height();
             return true;
         }
     }
     return false;
 }