Beginning of support for texture rectangles.

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 0c2ed73d7cb237597d1f99f19d2767028209531d..bc49c20b35a86e65f95846b0a8c597916da67560 100644
--- a/src/gpu/gl/GrGLCaps.cpp
+++ b/src/gpu/gl/GrGLCaps.cpp
@@ -42,6 +42,7 @@ GrGLCaps::GrGLCaps(const GrContextOptions& contextOptions,
     fIsCoreProfile = false;
     fBindFragDataLocationSupport = false;
     fExternalTextureSupport = false;
+    fRectangleTextureSupport = false;
     fTextureSwizzleSupport = false;
     fSRGBWriteControl = false;
     fRGBA8888PixelsOpsAreSlow = false;
@@ -219,6 +220,11 @@ void GrGLCaps::init(const GrContextOptions& contextOptions,
         }
     }
 
+    if ((kGL_GrGLStandard == standard && version >= GR_GL_VER(3, 2)) ||
+        ctxInfo.hasExtension("GL_ARB_texture_rectangle")) {
+        fRectangleTextureSupport = true;
+    }
+
     if (kGL_GrGLStandard == standard) {
         if (version >= GR_GL_VER(3,3) || ctxInfo.hasExtension("GL_ARB_texture_swizzle")) {
             fTextureSwizzleSupport = true;
@@ -900,6 +906,7 @@ SkString GrGLCaps::dump() const {
     r.appendf("Partial FBO read is slow: %s\n", (fPartialFBOReadIsSlow ? "YES" : "NO"));
     r.appendf("Bind uniform location support: %s\n", (fBindUniformLocationSupport ? "YES" : "NO"));
     r.appendf("External texture support: %s\n", (fExternalTextureSupport ? "YES" : "NO"));
+    r.appendf("Rectangle texture support: %s\n", (fRectangleTextureSupport? "YES" : "NO"));
     r.appendf("Texture swizzle support: %s\n", (fTextureSwizzleSupport ? "YES" : "NO"));
 
     r.append("Configs\n-------\n");