Don't allow BGRA rendertargets on iOS w/ES 3.0+.

src/gpu/gl/GrGLCaps.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrGLCaps.h"
 
@@ skipping 712 matching lines @@
     // we no longer support 444 as a render target
     fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kNo_MSAA]  = false;
     fConfigRenderSupport[kRGBA_4444_GrPixelConfig][kYes_MSAA]  = false;
 
     if (this->fRGBA8RenderbufferSupport) {
         fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kNo_MSAA]  = true;
         fConfigRenderSupport[kRGBA_8888_GrPixelConfig][kYes_MSAA]  = true;
     }
 
     if (this->isConfigTexturable(kBGRA_8888_GrPixelConfig)) {
-        fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kNo_MSAA]  = true;
-        // The GL_EXT_texture_format_BGRA8888 extension does not add BGRA to the list of
-        // configs that are color-renderable and can be passed to glRenderBufferStorageMultisample.
-        // Chromium may have an extension to allow BGRA renderbuffers to work on desktop platforms.
-        if (ctxInfo.hasExtension("GL_CHROMIUM_renderbuffer_format_BGRA8888")) {
-            fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] = true;
-        } else {
-            fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] =
-                !fBGRAIsInternalFormat || !this->usesMSAARenderBuffers();
+        // On iOS, BGRA is not supported as a renderable target on ES 3.0+
+        if (!ctxInfo.hasExtension("GL_APPLE_texture_format_BGRA8888") ||
+            ctxInfo.version() < GR_GL_VER(3,0)) {
+            fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kNo_MSAA]  = true;
+            // The GL_EXT_texture_format_BGRA8888 extension does not add BGRA to the list of
+            // configs that are color-renderable and can be passed to glRenderBufferStorageMultisample.
+            // Chromium may have an extension to allow BGRA renderbuffers to work on desktop platforms.
+            if (ctxInfo.hasExtension("GL_CHROMIUM_renderbuffer_format_BGRA8888")) {
+                fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] = true;
+            } else {
+                fConfigRenderSupport[kBGRA_8888_GrPixelConfig][kYes_MSAA] =
+                    !fBGRAIsInternalFormat || !this->usesMSAARenderBuffers();
+            }
         }
     }
 
     if (this->fRGBA8RenderbufferSupport && srgbSupport) {
         fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kNo_MSAA] = true;
         fConfigRenderSupport[kSRGBA_8888_GrPixelConfig][kYes_MSAA] = true;
     }
     
     if (this->isConfigTexturable(kRGBA_float_GrPixelConfig)) {
         if (kGL_GrGLStandard == standard) {
@@ skipping 596 matching lines @@
     glslCaps->fConfigSwizzle[kR11_EAC_GrPixelConfig] = "rrrr";
     glslCaps->fConfigSwizzle[kASTC_12x12_GrPixelConfig] = "rgba";
     glslCaps->fConfigSwizzle[kRGBA_float_GrPixelConfig] = "rgba";
     glslCaps->fConfigSwizzle[kRGBA_half_GrPixelConfig] = "rgba";
 
 }
 
 void GrGLCaps::onApplyOptionsOverrides(const GrContextOptions& options) {}