make the filter mode for GrTextureAccess an enum so we can plumb down

src/core/SkBitmapProcShader.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 "SkBitmapProcShader.h"
 #include "SkColorPriv.h"
 #include "SkFlattenableBuffers.h"
 #include "SkPixelRef.h"
+#include "SkErrorInternals.h"
 
 bool SkBitmapProcShader::CanDo(const SkBitmap& bm, TileMode tx, TileMode ty) {
     switch (bm.config()) {
         case SkBitmap::kA8_Config:
         case SkBitmap::kRGB_565_Config:
         case SkBitmap::kIndex8_Config:
         case SkBitmap::kARGB_8888_Config:
     //        if (tx == ty && (kClamp_TileMode == tx || kRepeat_TileMode == tx))
                 return true;
         default:
@@ skipping 324 matching lines @@
             return NULL;
         }
         matrix.preConcat(inverse);
     }
     SkShader::TileMode tm[] = {
         (TileMode)fState.fTileModeX,
         (TileMode)fState.fTileModeY,
     };
 
     // Must set wrap and filter on the sampler before requesting a texture.
-    GrTextureParams params(tm, paint.isFilterBitmap());
+    SkPaint::FilterLevel paintFilterLevel = paint.getFilterLevel();
+    GrTextureParams::FilterMode textureFilterMode;
+    switch(paintFilterLevel) {
+        case SkPaint::kNone_FilterLevel:
+            textureFilterMode = GrTextureParams::kNone_FilterMode;
+            break;
+        case SkPaint::kLow_FilterLevel:
+            textureFilterMode = GrTextureParams::kBilerp_FilterMode;
+            break;
+        case SkPaint::kMedium_FilterLevel:
+            textureFilterMode = GrTextureParams::kMipMap_FilterMode;
+            break;
+        case SkPaint::kHigh_FilterLevel:
+            SkErrorInternals::SetError( kInvalidPaint_SkError,
+                                        "Sorry, I don't yet support high quality "
+                                        "filtering on the GPU; falling back to "
+                                        "MIPMaps.");
+            textureFilterMode = GrTextureParams::kMipMap_FilterMode;
+            break;
+    }
+    GrTextureParams params(tm, textureFilterMode);
     GrTexture* texture = GrLockAndRefCachedBitmapTexture(context, fRawBitmap, &params);
 
     if (NULL == texture) {
         SkDebugf("Couldn't convert bitmap to texture.\n");
         return NULL;
     }
 
     GrEffectRef* effect = GrSimpleTextureEffect::Create(texture, matrix, params);
     GrUnlockAndUnrefCachedBitmapTexture(texture);
     return effect;
 }
 #endif