Add unsized color-renderable formats to getInternalformatParameter

third_party/WebKit/Source/modules/webgl/WebGL2RenderingContextBase.cpp

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "config.h"
 #include "modules/webgl/WebGL2RenderingContextBase.h"
 
 #include "bindings/modules/v8/WebGLAny.h"
 #include "core/html/HTMLCanvasElement.h"
 #include "core/html/HTMLImageElement.h"
@@ skipping 309 matching lines @@
         return ScriptValue::createNull(scriptState);
 
     if (target != GL_RENDERBUFFER) {
         synthesizeGLError(GL_INVALID_ENUM, "getInternalformatParameter", "invalid target");
         return ScriptValue::createNull(scriptState);
     }
 
     bool floatType = false;
 
     switch (internalformat) {
+    // Renderbuffer doesn't support unsized internal formats,
+    // though GL_RGB and GL_RGBA are color-renderable.
+    case GL_RGB:
+    case GL_RGBA:
+    // Multisampling is not supported for signed and unsigned integer internal formats.
     case GL_R8UI:
     case GL_R8I:
     case GL_R16UI:
     case GL_R16I:
     case GL_R32UI:
     case GL_R32I:
     case GL_RG8UI:
     case GL_RG8I:
     case GL_RG16UI:
     case GL_RG16I:
@@ skipping 3017 matching lines @@
 
     WebGLSampler* sampler = m_samplerUnits[unit];
 
     if (sampler)
         return sampler->getSamplerState();
 
     return WebGLRenderingContextBase::getTextureUnitSamplerState(target, unit);
 }
 
 } // namespace blink