Add FontMgr to DirectWrite.

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"
 #include "GrGLContext.h"
@@ skipping 201 matching lines @@
      * GrDrawTargetCaps fields
      **************************************************************************/
     GrGLint maxTextureUnits;
     // check FS and fixed-function texture unit limits
     // we only use textures in the fragment stage currently.
     // checks are > to make sure we have a spare unit.
     GR_GL_GetIntegerv(gli, GR_GL_MAX_TEXTURE_IMAGE_UNITS, &maxTextureUnits);
 
     GrGLint numFormats;
     GR_GL_GetIntegerv(gli, GR_GL_NUM_COMPRESSED_TEXTURE_FORMATS, &numFormats);
-    SkAutoSTMalloc<10, GrGLint> formats(numFormats);
-    GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);
-    for (int i = 0; i < numFormats; ++i) {
-        if (formats[i] == GR_GL_PALETTE8_RGBA8) {
-            f8BitPaletteSupport = true;
-            break;
+    if (numFormats) {

[bungeman-skia, 2013/04/29 22:59:06]

The 'debug' gl context sets numFormats to 0.

+        SkAutoSTMalloc<10, GrGLint> formats(numFormats);

[bungeman-skia, 2013/04/29 22:59:06]

The new SkAutoSTMalloc fPtr is NULL when constructed with a count of 0.

+        GR_GL_GetIntegerv(gli, GR_GL_COMPRESSED_TEXTURE_FORMATS, formats);

[bungeman-skia, 2013/04/29 22:59:06]

The first thing GR_GL_GetIntegerv does is

*formats = 0

Which is an iffy thing to do when one has zero formats.

+        for (int i = 0; i < numFormats; ++i) {
+            if (formats[i] == GR_GL_PALETTE8_RGBA8) {
+                f8BitPaletteSupport = true;
+                break;
+            }
         }
     }
 
     if (kDesktop_GrGLBinding == binding) {
         // we could also look for GL_ATI_separate_stencil extension or
         // GL_EXT_stencil_two_side but they use different function signatures
         // than GL2.0+ (and than each other).
         fTwoSidedStencilSupport = (ctxInfo.version() >= GR_GL_VER(2,0));
         // supported on GL 1.4 and higher or by extension
         fStencilWrapOpsSupport = (ctxInfo.version() >= GR_GL_VER(1,4)) ||
@@ skipping 309 matching lines @@
     GrPrintf("GL_ARB_imaging support: %s\n", (fImagingSupport ? "YES": "NO"));
     GrPrintf("Two Format Limit: %s\n", (fTwoFormatLimit ? "YES": "NO"));
     GrPrintf("Fragment coord conventions support: %s\n",
              (fFragCoordsConventionSupport ? "YES": "NO"));
     GrPrintf("Vertex array object support: %s\n", (fVertexArrayObjectSupport ? "YES": "NO"));
     GrPrintf("Use non-VBO for dynamic data: %s\n",
              (fUseNonVBOVertexAndIndexDynamicData ? "YES" : "NO"));
     GrPrintf("Core Profile: %s\n", (fIsCoreProfile ? "YES" : "NO"));
     GrPrintf("Discard FrameBuffer support: %s\n", (fDiscardFBSupport ? "YES" : "NO"));
 }