Rename GrGLBug to GrGLCapability.
Default all architectures to kProbe_GrGLCapability.
Use new facilities better from GrGpuGL.cpp



git-svn-id: http://skia.googlecode.com/svn/trunk@1613 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/gpu/src/GrGpuGL.cpp b/gpu/src/GrGpuGL.cpp
index 973e1e4..e40024a 100644
--- a/gpu/src/GrGpuGL.cpp
+++ b/gpu/src/GrGpuGL.cpp
@@ -471,11 +471,13 @@
     // TODO: Make these a preprocess that generate some compile time constants.
     // TODO: probe once at startup, rather than once per context creation.
 
-    if (GrGLGetGLInterface()->fNPOTRenderTargetSupport < 0) {
+    int expectNPOTTargets = GrGLGetGLInterface()->fNPOTRenderTargetSupport;
+    if (expectNPOTTargets == kProbe_GrGLCapability) {
         fNPOTRenderTargetSupport =
             probe_for_npot_render_target_support(fNPOTTextureSupport);
     } else {
-        fNPOTRenderTargetSupport = GrGLGetGLInterface()->fNPOTRenderTargetSupport;
+        GrAssert(expectNPOTTargets == 0 || expectNPOTTargets == 1);
+        fNPOTRenderTargetSupport = static_cast<bool>(expectNPOTTargets);
     }
 
     if (gPrintStartupSpew) {
@@ -503,14 +505,14 @@
     fMaxRenderTargetSize = GrMin(fMaxTextureSize, fMaxRenderTargetSize);
 
     fMinRenderTargetHeight = GrGLGetGLInterface()->fMinRenderTargetHeight;
-    if (fMinRenderTargetHeight < 0) {
+    if (fMinRenderTargetHeight == kProbe_GrGLCapability) {
         fMinRenderTargetHeight =
             probe_for_min_render_target_height(fNPOTRenderTargetSupport,
                                                fMaxRenderTargetSize);
     }
 
     fMinRenderTargetWidth = GrGLGetGLInterface()->fMinRenderTargetWidth;
-    if (fMinRenderTargetWidth < 0) {
+    if (fMinRenderTargetWidth == kProbe_GrGLCapability) {
         fMinRenderTargetWidth =
             probe_for_min_render_target_width(fNPOTRenderTargetSupport,
                                               fMaxRenderTargetSize);
diff --git a/gpu/src/android/GrGLDefaultInterface_android.cpp b/gpu/src/android/GrGLDefaultInterface_android.cpp
index 54bc2f6..4c06f17 100644
--- a/gpu/src/android/GrGLDefaultInterface_android.cpp
+++ b/gpu/src/android/GrGLDefaultInterface_android.cpp
@@ -19,9 +19,9 @@
 void GrGLSetDefaultGLInterface() {
   static GrGLInterface cmd_buffer_interface = {
     kES2_GrGLBinding,
-    kProbe_GrGLBug,  // fNPOTRenderTargetSupport
-    kProbe_GrGLBug,  // fMinRenderTargetHeight
-    kProbe_GrGLBug,  // fMinRenderTargetWidth
+    kProbe_GrGLCapability,  // fNPOTRenderTargetSupport
+    kProbe_GrGLCapability,  // fMinRenderTargetHeight
+    kProbe_GrGLCapability,  // fMinRenderTargetWidth
     glActiveTexture,
     glAttachShader,
     glBindAttribLocation,
diff --git a/gpu/src/mac/GrGLDefaultInterface_mac.cpp b/gpu/src/mac/GrGLDefaultInterface_mac.cpp
index cfa528a..d21bdda 100644
--- a/gpu/src/mac/GrGLDefaultInterface_mac.cpp
+++ b/gpu/src/mac/GrGLDefaultInterface_mac.cpp
@@ -23,9 +23,9 @@
     static GrGLInterface gDefaultInterface;
     static bool gDefaultInterfaceInit;
     if (!gDefaultInterfaceInit) {
-        gDefaultInterface.fNPOTRenderTargetSupport = true;
-        gDefaultInterface.fMinRenderTargetHeight = 1;
-        gDefaultInterface.fMinRenderTargetWidth = 1;
+        gDefaultInterface.fNPOTRenderTargetSupport = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetHeight = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetWidth = kProbe_GrGLCapability;
 
         gDefaultInterface.fActiveTexture = glActiveTexture;
         gDefaultInterface.fAttachShader = glAttachShader;
diff --git a/gpu/src/mesa/GrGLDefaultInterface_mesa.cpp b/gpu/src/mesa/GrGLDefaultInterface_mesa.cpp
index bc75a2c..1324649 100644
--- a/gpu/src/mesa/GrGLDefaultInterface_mesa.cpp
+++ b/gpu/src/mesa/GrGLDefaultInterface_mesa.cpp
@@ -38,9 +38,9 @@
             // We must have array and element_array buffer objects.
             return;
         }
-        gDefaultInterface.fNPOTRenderTargetSupport = true;
-        gDefaultInterface.fMinRenderTargetHeight = 1;
-        gDefaultInterface.fMinRenderTargetWidth = 1;
+        gDefaultInterface.fNPOTRenderTargetSupport = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetHeight = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetWidth = kProbe_GrGLCapability;
 
         gDefaultInterface.fActiveTexture = glActiveTexture;
         GR_GL_GET_PROC(AttachShader);
diff --git a/gpu/src/unix/GrGLDefaultInterface_unix.cpp b/gpu/src/unix/GrGLDefaultInterface_unix.cpp
index 2e233e0..724f438 100644
--- a/gpu/src/unix/GrGLDefaultInterface_unix.cpp
+++ b/gpu/src/unix/GrGLDefaultInterface_unix.cpp
@@ -40,9 +40,9 @@
             return;
         }
 
-        gDefaultInterface.fNPOTRenderTargetSupport = true;
-        gDefaultInterface.fMinRenderTargetHeight = 1;
-        gDefaultInterface.fMinRenderTargetWidth = 1;
+        gDefaultInterface.fNPOTRenderTargetSupport = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetHeight = kProbe_GrGLCapability;
+        gDefaultInterface.fMinRenderTargetWidth = kProbe_GrGLCapability;
 
         gDefaultInterface.fActiveTexture = glActiveTexture;
         GR_GL_GET_PROC(AttachShader);
diff --git a/gpu/src/win/GrGLDefaultInterface_win.cpp b/gpu/src/win/GrGLDefaultInterface_win.cpp
index 9b40a94..3bbd262 100644
--- a/gpu/src/win/GrGLDefaultInterface_win.cpp
+++ b/gpu/src/win/GrGLDefaultInterface_win.cpp
@@ -45,9 +45,9 @@
                 return;
             }
 
-            gDefaultInterface.fNPOTRenderTargetSupport = true;
-            gDefaultInterface.fMinRenderTargetHeight = 1;
-            gDefaultInterface.fMinRenderTargetWidth = 1;
+            gDefaultInterface.fNPOTRenderTargetSupport = kProbe_GrGLCapability;
+            gDefaultInterface.fMinRenderTargetHeight = kProbe_GrGLCapability;
+            gDefaultInterface.fMinRenderTargetWidth = kProbe_GrGLCapability;
 
             // Functions that are part of GL 1.1 will return NULL in
             // wglGetProcAddress