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      1 /*
      2  * Copyright (C) 2011 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
      6  * are met:
      7  *
      8  * 1.  Redistributions of source code must retain the above copyright
      9  *     notice, this list of conditions and the following disclaimer.
     10  * 2.  Redistributions in binary form must reproduce the above copyright
     11  *     notice, this list of conditions and the following disclaimer in the
     12  *     documentation and/or other materials provided with the distribution.
     13  *
     14  * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
     15  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
     16  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
     17  * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
     18  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
     19  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
     20  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
     21  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     23  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #include "config.h"
     27 
     28 #if USE(ACCELERATED_COMPOSITING)
     29 
     30 #include "cc/CCPluginLayerImpl.h"
     31 
     32 #include "GraphicsContext3D.h"
     33 #include "LayerRendererChromium.h"
     34 #include "PluginLayerChromium.h"
     35 #include <wtf/text/WTFString.h>
     36 
     37 namespace WebCore {
     38 
     39 CCPluginLayerImpl::CCPluginLayerImpl(LayerChromium* owner)
     40     : CCLayerImpl(owner)
     41     , m_textureId(0)
     42 {
     43 }
     44 
     45 CCPluginLayerImpl::~CCPluginLayerImpl()
     46 {
     47 }
     48 
     49 void CCPluginLayerImpl::draw(const IntRect&)
     50 {
     51     ASSERT(layerRenderer());
     52     const CCPluginLayerImpl::Program* program = layerRenderer()->pluginLayerProgram();
     53     ASSERT(program && program->initialized());
     54     GraphicsContext3D* context = layerRenderer()->context();
     55     GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
     56     GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textureId));
     57 
     58     // FIXME: setting the texture parameters every time is redundant. Move this code somewhere
     59     // where it will only happen once per texture.
     60     GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MIN_FILTER, GraphicsContext3D::LINEAR));
     61     GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_MAG_FILTER, GraphicsContext3D::LINEAR));
     62     GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_S, GraphicsContext3D::CLAMP_TO_EDGE));
     63     GLC(context, context->texParameteri(GraphicsContext3D::TEXTURE_2D, GraphicsContext3D::TEXTURE_WRAP_T, GraphicsContext3D::CLAMP_TO_EDGE));
     64 
     65     layerRenderer()->useShader(program->program());
     66     GLC(context, context->uniform1i(program->fragmentShader().samplerLocation(), 0));
     67     LayerChromium::drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
     68                                     bounds().width(), bounds().height(), drawOpacity(),
     69                                     program->vertexShader().matrixLocation(),
     70                                     program->fragmentShader().alphaLocation());
     71 }
     72 
     73 
     74 void CCPluginLayerImpl::dumpLayerProperties(TextStream& ts, int indent) const
     75 {
     76     writeIndent(ts, indent);
     77     ts << "plugin layer texture id: " << m_textureId << "\n";
     78     CCLayerImpl::dumpLayerProperties(ts, indent);
     79 }
     80 
     81 }
     82 
     83 #endif // USE(ACCELERATED_COMPOSITING)
     84