1 files changed, 0 insertions, 426 deletions
diff --git a/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp b/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp
deleted file mode 100644
index 24fd732..0000000
--- a/WebCore/platform/graphics/chromium/VideoLayerChromium.cpp
+++ /dev/null
@@ -1,426 +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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER OR 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 "VideoLayerChromium.h"
-
-#include "Extensions3DChromium.h"
-#include "GraphicsContext3D.h"
-#include "LayerRendererChromium.h"
-#include "RenderLayerBacking.h"
-#include "VideoFrameChromium.h"
-#include "VideoFrameProvider.h"
-
-namespace WebCore {
-
-// These values are magic numbers that are used in the transformation
-// from YUV to RGB color values.
-const float VideoLayerChromium::yuv2RGB[9] = {
-    1.f, 1.f, 1.f,
-    0.f, -.344f, 1.772f,
-    1.403f, -.714f, 0.f,
-};
-
-VideoLayerChromium::SharedValues::SharedValues(GraphicsContext3D* context)
-    : m_context(context)
-    , m_yuvShaderProgram(0)
-    , m_rgbaShaderProgram(0)
-    , m_yuvShaderMatrixLocation(0)
-    , m_yuvWidthScaleFactorLocation(0)
-    , m_rgbaShaderMatrixLocation(0)
-    , m_rgbaWidthScaleFactorLocation(0)
-    , m_ccMatrixLocation(0)
-    , m_yTextureLocation(0)
-    , m_uTextureLocation(0)
-    , m_vTextureLocation(0)
-    , m_rgbaTextureLocation(0)
-    , m_yuvAlphaLocation(0)
-    , m_rgbaAlphaLocation(0)
-    , m_initialized(false)
-{
-    // Frame textures are allocated based on stride width, not visible frame
-    // width, such that there is a guarantee that the frame rows line up
-    // properly and are not shifted by (stride - width) pixels. To hide the
-    // "padding" pixels between the edge of the visible frame width and the end
-    // of the stride, we give the shader a widthScaleFactor (<=1.0) of how much
-    // of the width of the texture should be shown when drawing the texture onto
-    // the vertices.
-    char vertexShaderString[] =
-        "precision mediump float;     \n"
-        "attribute vec4 a_position;   \n"
-        "attribute vec2 a_texCoord;   \n"
-        "uniform mat4 matrix;         \n"
-        "varying vec2 v_texCoord;     \n"
-        "uniform float widthScaleFactor;  \n"
-        "void main()                  \n"
-        "{                            \n"
-        "  gl_Position = matrix * a_position; \n"
-        "  v_texCoord = vec2(widthScaleFactor * a_texCoord.x, a_texCoord.y); \n"
-        "}                            \n";
-
-    char yuvFragmentShaderString[] =
-        "precision mediump float;                             \n"
-        "precision mediump int;                               \n"
-        "varying vec2 v_texCoord;                             \n"
-        "uniform sampler2D y_texture;                         \n"
-        "uniform sampler2D u_texture;                         \n"
-        "uniform sampler2D v_texture;                         \n"
-        "uniform float alpha;                                 \n"
-        "uniform mat3 cc_matrix;                              \n"
-        "void main()                                          \n"
-        "{                                                    \n"
-        "  float y = texture2D(y_texture, v_texCoord).x;      \n"
-        "  float u = texture2D(u_texture, v_texCoord).r - .5; \n"
-        "  float v = texture2D(v_texture, v_texCoord).r - .5; \n"
-        "  vec3 rgb = cc_matrix * vec3(y, u, v);              \n"
-        "  gl_FragColor = vec4(rgb.x, rgb.y, rgb.z, 1.0) * alpha; \n"
-        "}                                                    \n";
-
-    char rgbaFragmentShaderString[] =
-        "precision mediump float;                             \n"
-        "varying vec2 v_texCoord;                             \n"
-        "uniform sampler2D rgba_texture;                      \n"
-        "uniform float alpha;                                 \n"
-        "void main()                                          \n"
-        "{                                                    \n"
-        "  vec4 texColor = texture2D(rgba_texture, vec2(v_texCoord.x, 1.0 - v_texCoord.y)); \n"
-        "  gl_FragColor = vec4(texColor.x, texColor.y, texColor.z, texColor.w) * alpha; \n"
-        "}                                                    \n";
-
-    m_rgbaShaderProgram = createShaderProgram(m_context, vertexShaderString, rgbaFragmentShaderString);
-    if (!m_rgbaShaderProgram) {
-        LOG_ERROR("VideoLayerChromium: Failed to create rgba shader program");
-        return;
-    }
-
-    m_yuvShaderProgram = createShaderProgram(m_context, vertexShaderString, yuvFragmentShaderString);
-    if (!m_yuvShaderProgram) {
-        LOG_ERROR("VideoLayerChromium: Failed to create yuv shader program");
-        return;
-    }
-
-    m_yuvShaderMatrixLocation = m_context->getUniformLocation(m_yuvShaderProgram, "matrix");
-    m_yuvWidthScaleFactorLocation = m_context->getUniformLocation(m_yuvShaderProgram, "widthScaleFactor");
-    m_yTextureLocation = m_context->getUniformLocation(m_yuvShaderProgram, "y_texture");
-    m_uTextureLocation = m_context->getUniformLocation(m_yuvShaderProgram, "u_texture");
-    m_vTextureLocation = m_context->getUniformLocation(m_yuvShaderProgram, "v_texture");
-    m_ccMatrixLocation = m_context->getUniformLocation(m_yuvShaderProgram, "cc_matrix");
-    m_yuvAlphaLocation = m_context->getUniformLocation(m_yuvShaderProgram, "alpha");
-
-    ASSERT(m_yuvShaderMatrixLocation != -1);
-    ASSERT(m_yuvWidthScaleFactorLocation != -1);
-    ASSERT(m_yTextureLocation != -1);
-    ASSERT(m_uTextureLocation != -1);
-    ASSERT(m_vTextureLocation != -1);
-    ASSERT(m_ccMatrixLocation != -1);
-    ASSERT(m_yuvAlphaLocation != -1);
-
-    m_rgbaShaderMatrixLocation = m_context->getUniformLocation(m_rgbaShaderProgram, "matrix");
-    m_rgbaTextureLocation = m_context->getUniformLocation(m_rgbaShaderProgram, "rgba_texture");
-    m_rgbaWidthScaleFactorLocation = m_context->getUniformLocation(m_rgbaShaderProgram, "widthScaleFactor");
-    m_rgbaAlphaLocation = m_context->getUniformLocation(m_rgbaShaderProgram, "alpha");
-
-    ASSERT(m_rgbaShaderMatrixLocation != -1);
-    ASSERT(m_rgbaTextureLocation != -1);
-    ASSERT(m_rgbaWidthScaleFactorLocation != -1);
-    ASSERT(m_rgbaAlphaLocation != -1);
-
-    m_initialized = true;
-}
-
-VideoLayerChromium::SharedValues::~SharedValues()
-{
-    if (m_yuvShaderProgram)
-        GLC(m_context, m_context->deleteProgram(m_yuvShaderProgram));
-    if (m_rgbaShaderProgram)
-        GLC(m_context, m_context->deleteProgram(m_rgbaShaderProgram));
-}
-
-PassRefPtr<VideoLayerChromium> VideoLayerChromium::create(GraphicsLayerChromium* owner,
-                                                          VideoFrameProvider* provider)
-{
-    return adoptRef(new VideoLayerChromium(owner, provider));
-}
-
-VideoLayerChromium::VideoLayerChromium(GraphicsLayerChromium* owner, VideoFrameProvider* provider)
-    : LayerChromium(owner)
-    , m_skipsDraw(true)
-    , m_frameFormat(VideoFrameChromium::Invalid)
-    , m_provider(provider)
-    , m_currentFrame(0)
-{
-    resetFrameParameters();
-}
-
-VideoLayerChromium::~VideoLayerChromium()
-{
-    cleanupResources();
-}
-
-void VideoLayerChromium::cleanupResources()
-{
-    LayerChromium::cleanupResources();
-    releaseCurrentFrame();
-    if (!layerRenderer())
-        return;
-
-    GraphicsContext3D* context = layerRendererContext();
-    for (unsigned plane = 0; plane < VideoFrameChromium::maxPlanes; plane++) {
-        if (m_textures[plane])
-            GLC(context, context->deleteTexture(m_textures[plane]));
-    }
-}
-
-void VideoLayerChromium::updateContentsIfDirty()
-{
-    if (!m_contentsDirty)
-        return;
-
-    RenderLayerBacking* backing = static_cast<RenderLayerBacking*>(m_owner->client());
-    if (!backing || backing->paintingGoesToWindow())
-        return;
-
-    ASSERT(drawsContent());
-
-    m_skipsDraw = false;
-    VideoFrameChromium* frame = m_provider->getCurrentFrame();
-    if (!frame) {
-        m_skipsDraw = true;
-        m_provider->putCurrentFrame(frame);
-        return;
-    }
-
-    m_frameFormat = frame->format();
-    unsigned textureFormat = determineTextureFormat(frame);
-    if (textureFormat == GraphicsContext3D::INVALID_VALUE) {
-        // FIXME: Implement other paths.
-        notImplemented();
-        m_skipsDraw = true;
-        m_provider->putCurrentFrame(frame);
-        return;
-    }
-
-    if (frame->surfaceType() == VideoFrameChromium::TypeTexture) {
-        releaseCurrentFrame();
-        saveCurrentFrame(frame);
-        m_dirtyRect.setSize(FloatSize());
-        m_contentsDirty = false;
-        return;
-    }
-
-    // Allocate textures for planes if they are not allocated already, or
-    // reallocate textures that are the wrong size for the frame.
-    GraphicsContext3D* context = layerRendererContext();
-    bool texturesAllocated = allocateTexturesIfNeeded(context, frame, textureFormat);
-    if (!texturesAllocated) {
-        m_skipsDraw = true;
-        m_provider->putCurrentFrame(frame);
-        return;
-    }
-
-    // Update texture planes.
-    for (unsigned plane = 0; plane < frame->planes(); plane++) {
-        ASSERT(frame->requiredTextureSize(plane) == m_textureSizes[plane]);
-        updateTexture(context, m_textures[plane], frame->requiredTextureSize(plane), textureFormat, frame->data(plane));
-    }
-
-    m_dirtyRect.setSize(FloatSize());
-    m_contentsDirty = false;
-
-    m_provider->putCurrentFrame(frame);
-}
-
-unsigned VideoLayerChromium::determineTextureFormat(VideoFrameChromium* frame)
-{
-    switch (frame->format()) {
-    case VideoFrameChromium::YV12:
-        return GraphicsContext3D::LUMINANCE;
-    case VideoFrameChromium::RGBA:
-        return GraphicsContext3D::RGBA;
-    default:
-        break;
-    }
-    return GraphicsContext3D::INVALID_VALUE;
-}
-
-bool VideoLayerChromium::allocateTexturesIfNeeded(GraphicsContext3D* context, VideoFrameChromium* frame, unsigned textureFormat)
-{
-    ASSERT(context);
-    ASSERT(frame);
-
-    for (unsigned plane = 0; plane < frame->planes(); plane++) {
-        IntSize planeTextureSize = frame->requiredTextureSize(plane);
-
-        // If the renderer cannot handle this large of a texture, return false.
-        // FIXME: Remove this test when tiled layers are implemented.
-        if (!layerRenderer()->checkTextureSize(planeTextureSize))
-            return false;
-
-        if (!m_textures[plane])
-            m_textures[plane] = layerRenderer()->createLayerTexture();
-
-        if (!planeTextureSize.isZero() && planeTextureSize != m_textureSizes[plane]) {
-            allocateTexture(context, m_textures[plane], planeTextureSize, textureFormat);
-            m_textureSizes[plane] = planeTextureSize;
-            m_frameSizes[plane] = IntSize(frame->width(), frame->height());
-        }
-    }
-    return true;
-}
-
-void VideoLayerChromium::allocateTexture(GraphicsContext3D* context, unsigned textureId, const IntSize& dimensions, unsigned textureFormat)
-{
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, textureId));
-    GLC(context, context->texImage2DResourceSafe(GraphicsContext3D::TEXTURE_2D, 0, textureFormat, dimensions.width(), dimensions.height(), 0, textureFormat, GraphicsContext3D::UNSIGNED_BYTE));
-}
-
-void VideoLayerChromium::updateTexture(GraphicsContext3D* context, unsigned textureId, const IntSize& dimensions, unsigned format, const void* data)
-{
-    ASSERT(context);
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, textureId));
-    void* mem = static_cast<Extensions3DChromium*>(context->getExtensions())->mapTexSubImage2DCHROMIUM(GraphicsContext3D::TEXTURE_2D, 0, 0, 0, dimensions.width(), dimensions.height(), format, GraphicsContext3D::UNSIGNED_BYTE, Extensions3DChromium::WRITE_ONLY);
-    if (mem) {
-        memcpy(mem, data, dimensions.width() * dimensions.height());
-        GLC(context, static_cast<Extensions3DChromium*>(context->getExtensions())->unmapTexSubImage2DCHROMIUM(mem));
-    } else {
-        // FIXME: We should have some sort of code to handle the case when
-        // mapTexSubImage2D fails.
-        m_skipsDraw = true;
-    }
-}
-
-void VideoLayerChromium::draw()
-{
-    if (m_skipsDraw)
-        return;
-
-    ASSERT(layerRenderer());
-    const VideoLayerChromium::SharedValues* sv = layerRenderer()->videoLayerSharedValues();
-    ASSERT(sv && sv->initialized());
-
-    switch (m_frameFormat) {
-    case VideoFrameChromium::YV12:
-        drawYUV(sv);
-        break;
-    case VideoFrameChromium::RGBA:
-        drawRGBA(sv);
-        break;
-    default:
-        // FIXME: Implement other paths.
-        notImplemented();
-        break;
-    }
-    releaseCurrentFrame();
-}
-
-void VideoLayerChromium::releaseCurrentFrame()
-{
-    if (!m_currentFrame)
-        return;
-
-    m_provider->putCurrentFrame(m_currentFrame);
-    m_currentFrame = 0;
-    resetFrameParameters();
-}
-
-void VideoLayerChromium::drawYUV(const SharedValues* sv)
-{
-    GraphicsContext3D* context = layerRendererContext();
-    GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE1));
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::yPlane]));
-    GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE2));
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::uPlane]));
-    GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE3));
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::vPlane]));
-
-    layerRenderer()->useShader(sv->yuvShaderProgram());
-    unsigned frameWidth = m_frameSizes[VideoFrameChromium::yPlane].width();
-    unsigned textureWidth = m_textureSizes[VideoFrameChromium::yPlane].width();
-    float widthScaleFactor = static_cast<float>(frameWidth) / textureWidth;
-    GLC(context, context->uniform1f(sv->yuvWidthScaleFactorLocation(), widthScaleFactor));
-
-    GLC(context, context->uniform1i(sv->yTextureLocation(), 1));
-    GLC(context, context->uniform1i(sv->uTextureLocation(), 2));
-    GLC(context, context->uniform1i(sv->vTextureLocation(), 3));
-
-    GLC(context, context->uniformMatrix3fv(sv->ccMatrixLocation(), 0, const_cast<float*>(yuv2RGB), 1));
-
-    drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
-                     bounds().width(), bounds().height(), drawOpacity(),
-                     sv->yuvShaderMatrixLocation(), sv->yuvAlphaLocation());
-
-    // Reset active texture back to texture 0.
-    GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
-}
-
-void VideoLayerChromium::drawRGBA(const SharedValues* sv)
-{
-    GraphicsContext3D* context = layerRendererContext();
-    GLC(context, context->activeTexture(GraphicsContext3D::TEXTURE0));
-    GLC(context, context->bindTexture(GraphicsContext3D::TEXTURE_2D, m_textures[VideoFrameChromium::rgbPlane]));
-
-    layerRenderer()->useShader(sv->rgbaShaderProgram());
-    unsigned frameWidth = m_frameSizes[VideoFrameChromium::rgbPlane].width();
-    unsigned textureWidth = m_textureSizes[VideoFrameChromium::rgbPlane].width();
-    float widthScaleFactor = static_cast<float>(frameWidth) / textureWidth;
-    GLC(context, context->uniform1f(sv->rgbaWidthScaleFactorLocation(), widthScaleFactor));
-
-    GLC(context, context->uniform1i(sv->rgbaTextureLocation(), 0));
-
-    drawTexturedQuad(context, layerRenderer()->projectionMatrix(), drawTransform(),
-                     bounds().width(), bounds().height(), drawOpacity(),
-                     sv->rgbaShaderMatrixLocation(), sv->rgbaAlphaLocation());
-}
-
-void VideoLayerChromium::resetFrameParameters()
-{
-    for (unsigned plane = 0; plane < VideoFrameChromium::maxPlanes; plane++) {
-        m_textures[plane] = 0;
-        m_textureSizes[plane] = IntSize();
-        m_frameSizes[plane] = IntSize();
-    }
-}
-
-void VideoLayerChromium::saveCurrentFrame(VideoFrameChromium* frame)
-{
-    ASSERT(!m_currentFrame);
-    m_currentFrame = frame;
-    for (unsigned plane = 0; plane < frame->planes(); plane++) {
-        m_textures[plane] = frame->texture(plane);
-        m_textureSizes[plane] = frame->requiredTextureSize(plane);
-        m_frameSizes[plane] = m_textureSizes[plane];
-    }
-}
-
-} // namespace WebCore
-
-#endif // USE(ACCELERATED_COMPOSITING)