Index: third_party/WebKit/Source/modules/webgl/GLStringQuery.h |
diff --git a/third_party/WebKit/Source/modules/webgl/GLStringQuery.h b/third_party/WebKit/Source/modules/webgl/GLStringQuery.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..bfe15886a3c4589a0f9bcd5e88240020da1417cb |
--- /dev/null |
+++ b/third_party/WebKit/Source/modules/webgl/GLStringQuery.h |
@@ -0,0 +1,73 @@ |
+// Copyright 2010 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef GLStringQuery_h |
+#define GLStringQuery_h |
+ |
+#include "gpu/command_buffer/client/gles2_interface.h" |
+#include "wtf/text/WTFString.h" |
+ |
+namespace blink { |
+ |
+// Performs a query for a string on GLES2Interface and returns a WTF::String. If |
+// it is unable to query the string, it wil return an empty WTF::String. |
+class GLStringQuery { |
+public: |
+ struct ProgramInfoLog { |
+ static void LengthFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint* length) |
+ { |
+ return gl->GetProgramiv(id, GL_INFO_LOG_LENGTH, length); |
+ } |
+ static void LogFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint length, GLint* returnedLength, LChar* ptr) |
+ { |
+ return gl->GetProgramInfoLog(id, length, returnedLength, reinterpret_cast<GLchar*>(ptr)); |
+ } |
+ }; |
+ |
+ struct ShaderInfoLog { |
+ static void LengthFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint* length) |
+ { |
+ gl->GetShaderiv(id, GL_INFO_LOG_LENGTH, length); |
+ } |
+ static void LogFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint length, GLint* returnedLength, LChar* ptr) |
+ { |
+ gl->GetShaderInfoLog(id, length, returnedLength, reinterpret_cast<GLchar*>(ptr)); |
+ } |
+ }; |
+ |
+ struct TranslatedShaderSourceANGLE { |
+ static void LengthFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint* length) |
+ { |
+ gl->GetShaderiv(id, GL_TRANSLATED_SHADER_SOURCE_LENGTH_ANGLE, length); |
+ } |
+ static void LogFunction(gpu::gles2::GLES2Interface* gl, GLuint id, GLint length, GLint* returnedLength, LChar* ptr) |
+ { |
+ gl->GetTranslatedShaderSourceANGLE(id, length, returnedLength, reinterpret_cast<GLchar*>(ptr)); |
+ } |
+ }; |
+ |
+ GLStringQuery(gpu::gles2::GLES2Interface* gl) : m_gl(gl) {} |
+ |
+ template<class Traits> |
+ WTF::String Run(GLuint id) { |
+ GLint length = 0; |
+ Traits::LengthFunction(m_gl, id, &length); |
+ if (!length) |
+ return WTF::emptyString(); |
esprehn
2016/03/28 21:44:15
you don't need to write WTF:: on all these.
danakj
2016/03/28 21:45:34
Oh that stack of using's at the bottom of WTFStrin
|
+ LChar* logPtr; |
+ RefPtr<WTF::StringImpl> nameImpl = WTF::StringImpl::createUninitialized(length, logPtr); |
esprehn
2016/03/28 21:44:15
ditto, don't write WTF::
|
+ GLsizei returnedLength = 0; |
+ Traits::LogFunction(m_gl, id, length, &returnedLength, logPtr); |
+ // The returnedLength excludes the null terminator. If this check wasn't |
+ // true, then we'd need to tell the returned String the real length. |
+ DCHECK_EQ(returnedLength + 1, length); |
+ return String(nameImpl.release()); |
+ } |
+ |
+private: |
+ gpu::gles2::GLES2Interface* m_gl; |
+}; |
+ |
+} // namespace blink |
+#endif // GLStringQuery_h |