disable floating point textures if GLSL version is < 330

src/gpu/gl/GrGLCaps.cpp

Index: src/gpu/gl/GrGLCaps.cpp
diff --git a/src/gpu/gl/GrGLCaps.cpp b/src/gpu/gl/GrGLCaps.cpp
index 63e215f58561ae4f6fecc538875933e6914e3e02..48c0c4ae3379681391102e288b390598146e2372 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -542,7 +542,8 @@ void GrGLCaps::initConfigRenderableTable(const GrGLContextInfo& ctxInfo) {
             fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = true;
             fConfigRenderSupport[kRGBA_float_GrPixelConfig][kYes_MSAA] = true;
         } else {
-            if (ctxInfo.hasExtension("GL_EXT_color_buffer_float")) {
+            if (ctxInfo.hasExtension("GL_EXT_color_buffer_float") &&
+                ctxInfo.glslGeneration() >= k330_GrGLSLGeneration) {

[bsalomon, 2015/06/17 20:10:46]

need this for desktop too?

                 fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = true;
             } else {
                 fConfigRenderSupport[kRGBA_float_GrPixelConfig][kNo_MSAA] = false;