diff options
Diffstat (limited to 'WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp')
| -rw-r--r-- | WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp | 157 |
1 files changed, 0 insertions, 157 deletions
diff --git a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp b/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp deleted file mode 100644 index e8b9a12..0000000 --- a/WebCore/platform/graphics/chromium/RenderSurfaceChromium.cpp +++ /dev/null @@ -1,157 +0,0 @@ -/* - * Copyright (C) 2010 Google Inc. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in the - * documentation and/or other materials provided with the distribution. - * - * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY - * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED - * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE - * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY - * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES - * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND - * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF - * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - */ - -#include "config.h" - -#if USE(ACCELERATED_COMPOSITING) - -#include "RenderSurfaceChromium.h" - -#include "GraphicsContext3D.h" -#include "LayerRendererChromium.h" -#include "LayerTexture.h" - -namespace WebCore { - -RenderSurfaceChromium::SharedValues::SharedValues(GraphicsContext3D* context) - : m_context(context) - , m_shaderProgram(0) - , m_shaderSamplerLocation(-1) - , m_shaderMatrixLocation(-1) - , m_shaderAlphaLocation(-1) - , m_initialized(false) -{ - // The following program composites layers whose contents are the results of a previous - // render operation and therefore doesn't perform any color swizzling. It is used - // in scrolling and for compositing offscreen textures. - char renderSurfaceVertexShaderString[] = - "attribute vec4 a_position; \n" - "attribute vec2 a_texCoord; \n" - "uniform mat4 matrix; \n" - "varying vec2 v_texCoord; \n" - "void main() \n" - "{ \n" - " gl_Position = matrix * a_position; \n" - " v_texCoord = a_texCoord; \n" - "} \n"; - char renderSurfaceFragmentShaderString[] = - "precision mediump float; \n" - "varying vec2 v_texCoord; \n" - "uniform sampler2D s_texture; \n" - "uniform float alpha; \n" - "void main() \n" - "{ \n" - " vec4 texColor = texture2D(s_texture, v_texCoord); \n" - " gl_FragColor = vec4(texColor.x, texColor.y, texColor.z, texColor.w) * alpha; \n" - "} \n"; - - m_shaderProgram = LayerChromium::createShaderProgram(m_context, renderSurfaceVertexShaderString, renderSurfaceFragmentShaderString); - if (!m_shaderProgram) { - LOG_ERROR("RenderSurfaceChromium: Failed to create shader program"); - return; - } - - GLC(m_context, m_shaderSamplerLocation = m_context->getUniformLocation(m_shaderProgram, "s_texture")); - GLC(m_context, m_shaderMatrixLocation = m_context->getUniformLocation(m_shaderProgram, "matrix")); - GLC(m_context, m_shaderAlphaLocation = m_context->getUniformLocation(m_shaderProgram, "alpha")); - if (m_shaderSamplerLocation == -1 || m_shaderMatrixLocation == -1 || m_shaderAlphaLocation == -1) { - LOG_ERROR("Failed to initialize texture layer shader."); - return; - } - m_initialized = true; -} - -RenderSurfaceChromium::SharedValues::~SharedValues() -{ - if (m_shaderProgram) - GLC(m_context, m_context->deleteProgram(m_shaderProgram)); -} - -RenderSurfaceChromium::RenderSurfaceChromium(LayerChromium* owningLayer) - : m_owningLayer(owningLayer) - , m_skipsDraw(false) -{ -} - -RenderSurfaceChromium::~RenderSurfaceChromium() -{ - cleanupResources(); -} - -void RenderSurfaceChromium::cleanupResources() -{ - if (!m_contentsTexture) - return; - - ASSERT(layerRenderer()); - - m_contentsTexture.clear(); -} - -LayerRendererChromium* RenderSurfaceChromium::layerRenderer() -{ - ASSERT(m_owningLayer); - return m_owningLayer->layerRenderer(); -} - -bool RenderSurfaceChromium::prepareContentsTexture() -{ - IntSize requiredSize(m_contentRect.size()); - TextureManager* textureManager = layerRenderer()->textureManager(); - - if (!m_contentsTexture) - m_contentsTexture = LayerTexture::create(layerRenderer()->context(), textureManager); - - if (!m_contentsTexture->reserve(requiredSize, GraphicsContext3D::RGBA)) { - m_skipsDraw = true; - return false; - } - - m_skipsDraw = false; - return true; -} - -void RenderSurfaceChromium::draw() -{ - if (m_skipsDraw || !m_contentsTexture) - return; - - m_contentsTexture->bindTexture(); - - const RenderSurfaceChromium::SharedValues* sv = layerRenderer()->renderSurfaceSharedValues(); - ASSERT(sv && sv->initialized()); - - layerRenderer()->useShader(sv->shaderProgram()); - layerRenderer()->setScissorToRect(m_scissorRect); - - LayerChromium::drawTexturedQuad(layerRenderer()->context(), layerRenderer()->projectionMatrix(), m_drawTransform, - m_contentRect.width(), m_contentRect.height(), m_drawOpacity, - sv->shaderMatrixLocation(), sv->shaderAlphaLocation()); - - m_contentsTexture->unreserve(); -} - -} -#endif // USE(ACCELERATED_COMPOSITING) |