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// Copyright 2015 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.
#include "modules/webgl/WebGLTransformFeedback.h"
#include "gpu/command_buffer/client/gles2_interface.h"
#include "modules/webgl/WebGL2RenderingContextBase.h"
namespace blink {
WebGLTransformFeedback* WebGLTransformFeedback::create(
WebGL2RenderingContextBase* ctx) {
return new WebGLTransformFeedback(ctx);
}
WebGLTransformFeedback::WebGLTransformFeedback(WebGL2RenderingContextBase* ctx)
: WebGLSharedPlatform3DObject(ctx), m_target(0), m_program(nullptr) {
GLuint tf;
ctx->contextGL()->GenTransformFeedbacks(1, &tf);
setObject(tf);
}
WebGLTransformFeedback::~WebGLTransformFeedback() {
runDestructor();
}
void WebGLTransformFeedback::deleteObjectImpl(gpu::gles2::GLES2Interface* gl) {
gl->DeleteTransformFeedbacks(1, &m_object);
m_object = 0;
}
void WebGLTransformFeedback::setTarget(GLenum target) {
if (m_target)
return;
if (target == GL_TRANSFORM_FEEDBACK)
m_target = target;
}
void WebGLTransformFeedback::setProgram(WebGLProgram* program) {
m_program = program;
}
DEFINE_TRACE(WebGLTransformFeedback) {
visitor->trace(m_program);
WebGLSharedPlatform3DObject::trace(visitor);
}
} // namespace blink
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