1 /*

     2  * Copyright (C) 2010 Google Inc. All rights reserved.

     3  *

     4  * Redistribution and use in source and binary forms, with or without

     5  * modification, are permitted provided that the following conditions are

     6  * met:

     7  *

     8  *     * Redistributions of source code must retain the above copyright

     9  * notice, this list of conditions and the following disclaimer.

    10  *     * Redistributions in binary form must reproduce the above

    11  * copyright notice, this list of conditions and the following disclaimer

    12  * in the documentation and/or other materials provided with the

    13  * distribution.

    14  *     * Neither the name of Google Inc. nor the names of its

    15  * contributors may be used to endorse or promote products derived from

    16  * this software without specific prior written permission.

    17  *

    18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS

    19  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT

    20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR

    21  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT

    22  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,

    23  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT

    24  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,

    25  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY

    26  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT

    27  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE

    28  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

    29  */

    30 

    31 #include "config.h"

    32 

    33 #include "GLES2Context.h"

    34 #include "GLES2ContextInternal.h"

    35 #include "IntSize.h"

    36 #include "WebGLES2Context.h"

    37 #include "WebKit.h"

    38 #include "WebKitClient.h"

    39 #include "WebViewImpl.h"

    40 #include <wtf/OwnPtr.h>

    41 

    42 // There are two levels of delegation in this file:

    43 //

    44 //   1. GLES2Context delegates to GLES2ContextInternal. This is done

    45 //      so that we have some place to store data members common among

    46 //      implementations.

    47 //

    48 //   2. GLES2ContextInternal delegates to an implementation of

    49 //      WebGLES2Context. This is done so we have a place to inject an

    50 //      implementation which creates the GL ES context.

    51 

    52 using namespace WebKit;

    53 

    54 namespace WebCore {

    55 

    56 PassOwnPtr<GLES2ContextInternal> GLES2ContextInternal::create(WebGLES2Context* impl, bool owns)

    57 {

    58     PassOwnPtr<GLES2ContextInternal> result = new GLES2ContextInternal(impl, owns);

    59     return result;

    60 }

    61 

    62 PassOwnPtr<GLES2Context> GLES2Context::create(PassOwnPtr<GLES2ContextInternal> internal)

    63 {

    64     PassOwnPtr<GLES2Context> result = new GLES2Context();

    65     result->m_internal = internal;

    66     return result;

    67 }

    68 

    69 GLES2Context::GLES2Context()

    70 {

    71 }

    72 

    73 GLES2Context::~GLES2Context()

    74 {

    75 }

    76 

    77 bool GLES2Context::makeCurrent()

    78 {

    79     WebGLES2Context* webContext = m_internal->getWebGLES2Context();

    80     if (!webContext)

    81         return false;

    82     return webContext->makeCurrent();

    83 }

    84 

    85 bool GLES2Context::destroy()

    86 {

    87     WebGLES2Context* webContext = m_internal->getWebGLES2Context();

    88     if (!webContext)

    89         return false;

    90     return webContext->destroy();

    91 }

    92 

    93 bool GLES2Context::swapBuffers()

    94 {

    95     WebGLES2Context* webContext = m_internal->getWebGLES2Context();

    96     if (!webContext)

    97         return false;

    98     return webContext->swapBuffers();

    99 }

   100 

   101 void GLES2Context::resizeOffscreenContent(const IntSize& size)

   102 {

   103     WebGLES2Context* webContext = m_internal->getWebGLES2Context();

   104     ASSERT(webContext);

   105     webContext->resizeOffscreenContent(size);

   106 }

   107 

   108 unsigned GLES2Context::getOffscreenContentParentTextureId()

   109 {

   110     WebGLES2Context* webContext = m_internal->getWebGLES2Context();

   111     ASSERT(webContext);

   112     return webContext->getOffscreenContentParentTextureId();

   113 }

   114 

   115 }  // namespace WebCore