Imported WebKit commit 2ea9d364d0f6efa8fa64acf19f451504c59be0e4 (http://svn.webkit.org/repository/webkit/trunk@104285)

1 files changed, 326 insertions, 0 deletions

diff --git a/Tools/DumpRenderTree/chromium/TestWebPlugin.cpp b/Tools/DumpRenderTree/chromium/TestWebPlugin.cpp
new file mode 100644
index 000000000..ac2336664
--- /dev/null
+++ b/Tools/DumpRenderTree/chromium/TestWebPlugin.cpp
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+/*
+ * Copyright (C) 2011 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"
+#include "TestWebPlugin.h"
+
+#include "WebFrame.h"
+#include "platform/WebGraphicsContext3D.h"
+#include "WebKit.h"
+#include "platform/WebKitPlatformSupport.h"
+#include "WebPluginContainer.h"
+#include "WebPluginParams.h"
+#include <wtf/Assertions.h>
+#include <wtf/text/CString.h>
+
+using namespace WebKit;
+
+// GLenum values copied from gl2.h.
+#define GL_FALSE                  0
+#define GL_TRUE                   1
+#define GL_ONE                    1
+#define GL_TRIANGLES              0x0004
+#define GL_ONE_MINUS_SRC_ALPHA    0x0303
+#define GL_BLEND                  0x0BE2
+#define GL_FLOAT                  0x1406
+#define GL_COLOR_BUFFER_BIT       0x4000
+#define GL_ARRAY_BUFFER           0x8892
+#define GL_STATIC_DRAW            0x88E4
+#define GL_FRAGMENT_SHADER        0x8B30
+#define GL_VERTEX_SHADER          0x8B31
+#define GL_COMPILE_STATUS         0x8B81
+#define GL_LINK_STATUS            0x8B82
+
+static void premultiplyAlpha(const unsigned colorIn[3], float alpha, float colorOut[4])
+{
+    for (int i = 0; i < 3; ++i)
+        colorOut[i] = (colorIn[i] / 255.0f) * alpha;
+
+    colorOut[3] = alpha;
+}
+
+TestWebPlugin::TestWebPlugin(WebKit::WebFrame* frame,
+                             const WebKit::WebPluginParams& params)
+    : m_frame(frame)
+    , m_container(0)
+    , m_context(0)
+{
+    static const WebString kAttributePrimitive = WebString::fromUTF8("primitive");
+    static const WebString kAttributeBackgroundColor = WebString::fromUTF8("background-color");
+    static const WebString kAttributePrimitiveColor = WebString::fromUTF8("primitive-color");
+    static const WebString kAttributeOpacity = WebString::fromUTF8("opacity");
+
+    ASSERT(params.attributeNames.size() == params.attributeValues.size());
+    size_t size = params.attributeNames.size();
+    for (size_t i = 0; i < size; ++i) {
+        const WebString& attributeName = params.attributeNames[i];
+        const WebString& attributeValue = params.attributeValues[i];
+
+        if (attributeName == kAttributePrimitive)
+            m_scene.primitive = parsePrimitive(attributeValue);
+        else if (attributeName == kAttributeBackgroundColor)
+            parseColor(attributeValue, m_scene.backgroundColor);
+        else if (attributeName == kAttributePrimitiveColor)
+            parseColor(attributeValue, m_scene.primitiveColor);
+        else if (attributeName == kAttributeOpacity)
+            m_scene.opacity = parseOpacity(attributeValue);
+    }
+}
+
+TestWebPlugin::~TestWebPlugin()
+{
+}
+
+const WebString& TestWebPlugin::mimeType()
+{
+    static const WebString kMimeType = WebString::fromUTF8("application/x-webkit-test-webplugin");
+    return kMimeType;
+}
+
+bool TestWebPlugin::initialize(WebPluginContainer* container)
+{
+    m_context = webKitPlatformSupport()->createGraphicsContext3D();
+    if (!m_context)
+        return false;
+
+    WebGraphicsContext3D::Attributes attrs;
+    if (!m_context->initialize(attrs, m_frame->view(), false))
+        return false;
+
+    if (!m_context->makeContextCurrent())
+        return false;
+
+    if (!initScene())
+        return false;
+
+    m_container = container;
+    m_container->setBackingTextureId(m_context->getPlatformTextureId());
+    return true;
+}
+
+void TestWebPlugin::destroy()
+{
+    destroyScene();
+
+    delete m_context;
+    m_context = 0;
+
+    m_container = 0;
+    m_frame = 0;
+}
+
+void TestWebPlugin::updateGeometry(const WebRect& frameRect,
+                                   const WebRect& clipRect,
+                                   const WebVector<WebRect>& cutOutsRects,
+                                   bool isVisible)
+{
+    if (clipRect == m_rect)
+        return;
+    m_rect = clipRect;
+
+    m_context->reshape(m_rect.width, m_rect.height);
+    drawScene();
+    m_context->prepareTexture();
+
+    m_container->commitBackingTexture();
+}
+
+TestWebPlugin::Primitive TestWebPlugin::parsePrimitive(const WebString& string)
+{
+    static const WebString kPrimitiveNone = WebString::fromUTF8("none");
+    static const WebString kPrimitiveTriangle = WebString::fromUTF8("triangle");
+
+    Primitive primitive = PrimitiveNone;
+    if (string == kPrimitiveNone)
+        primitive = PrimitiveNone;
+    else if (string == kPrimitiveTriangle)
+        primitive = PrimitiveTriangle;
+    else
+        ASSERT_NOT_REACHED();
+    return primitive;
+}
+
+// FIXME: This method should already exist. Use it.
+// For now just parse primary colors.
+void TestWebPlugin::parseColor(const WebString& string, unsigned color[3])
+{
+    color[0] = color[1] = color[2] = 0;
+    if (string == "black")
+        return;
+
+    if (string == "red")
+        color[0] = 255;
+    else if (string == "green")
+        color[1] = 255;
+    else if (string == "blue")
+        color[2] = 255;
+    else
+        ASSERT_NOT_REACHED();
+}
+
+float TestWebPlugin::parseOpacity(const WebString& string)
+{
+    return static_cast<float>(atof(string.utf8().data()));
+}
+
+bool TestWebPlugin::initScene()
+{
+    float color[4];
+    premultiplyAlpha(m_scene.backgroundColor, m_scene.opacity, color);
+    m_context->clearColor(color[0], color[1], color[2], color[3]);
+
+    m_context->enable(GL_BLEND);
+    m_context->blendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+
+    return m_scene.primitive != PrimitiveNone ? initProgram() && initPrimitive() : true;
+}
+
+void TestWebPlugin::drawScene()
+{
+    m_context->viewport(0, 0, m_rect.width, m_rect.height);
+    m_context->clear(GL_COLOR_BUFFER_BIT);
+
+    if (m_scene.primitive != PrimitiveNone)
+        drawPrimitive();
+}
+
+void TestWebPlugin::destroyScene()
+{
+    if (m_scene.program) {
+        m_context->deleteProgram(m_scene.program);
+        m_scene.program = 0;
+    }
+    if (m_scene.vbo) {
+        m_context->deleteBuffer(m_scene.vbo);
+        m_scene.vbo = 0;
+    }
+}
+
+bool TestWebPlugin::initProgram()
+{
+    const CString vertexSource(
+        "attribute vec4 position;  \n"
+        "void main() {             \n"
+        "  gl_Position = position; \n"
+        "}                         \n"
+    );
+
+    const CString fragmentSource(
+        "precision mediump float; \n"
+        "uniform vec4 color;      \n"
+        "void main() {            \n"
+        "  gl_FragColor = color;  \n"
+        "}                        \n"
+    );
+
+    m_scene.program = loadProgram(vertexSource, fragmentSource);
+    if (!m_scene.program)
+        return false;
+
+    m_scene.colorLocation = m_context->getUniformLocation(m_scene.program, "color");
+    m_scene.positionLocation = m_context->getAttribLocation(m_scene.program, "position");
+    return true;
+}
+
+bool TestWebPlugin::initPrimitive()
+{
+    ASSERT(m_scene.primitive == PrimitiveTriangle);
+
+    m_scene.vbo = m_context->createBuffer();
+    if (!m_scene.vbo)
+        return false;
+
+    const float vertices[] = { 0.0f,  0.8f, 0.0f,
+                              -0.8f, -0.8f, 0.0f,
+                               0.8f, -0.8f, 0.0f };
+    m_context->bindBuffer(GL_ARRAY_BUFFER, m_scene.vbo);
+    m_context->bufferData(GL_ARRAY_BUFFER, sizeof(vertices), 0, GL_STATIC_DRAW);
+    m_context->bufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices);
+    return true;
+}
+
+void TestWebPlugin::drawPrimitive()
+{
+    ASSERT(m_scene.primitive == PrimitiveTriangle);
+    ASSERT(m_scene.vbo);
+    ASSERT(m_scene.program);
+
+    m_context->useProgram(m_scene.program);
+
+    // Bind primitive color.
+    float color[4];
+    premultiplyAlpha(m_scene.primitiveColor, m_scene.opacity, color);
+    m_context->uniform4f(m_scene.colorLocation, color[0], color[1], color[2], color[3]);
+
+    // Bind primitive vertices.
+    m_context->bindBuffer(GL_ARRAY_BUFFER, m_scene.vbo);
+    m_context->enableVertexAttribArray(m_scene.positionLocation);
+    m_context->vertexAttribPointer(m_scene.positionLocation, 3, GL_FLOAT, GL_FALSE, 0, 0);
+    m_context->drawArrays(GL_TRIANGLES, 0, 3);
+}
+
+unsigned TestWebPlugin::loadShader(unsigned type, const CString& source)
+{
+    unsigned shader = m_context->createShader(type);
+    if (shader) {
+        m_context->shaderSource(shader, source.data());
+        m_context->compileShader(shader);
+
+        int compiled = 0;
+        m_context->getShaderiv(shader, GL_COMPILE_STATUS, &compiled);
+        if (!compiled) {
+            m_context->deleteShader(shader);
+            shader = 0;
+        }
+    }
+    return shader;
+}
+
+unsigned TestWebPlugin::loadProgram(const CString& vertexSource,
+                                    const CString& fragmentSource)
+{
+    unsigned vertexShader = loadShader(GL_VERTEX_SHADER, vertexSource);
+    unsigned fragmentShader = loadShader(GL_FRAGMENT_SHADER, fragmentSource);
+    unsigned program = m_context->createProgram();
+    if (vertexShader && fragmentShader && program) {
+        m_context->attachShader(program, vertexShader);
+        m_context->attachShader(program, fragmentShader);
+        m_context->linkProgram(program);
+
+        int linked = 0;
+        m_context->getProgramiv(program, GL_LINK_STATUS, &linked);
+        if (!linked) {
+            m_context->deleteProgram(program);
+            program = 0;
+        }
+    }
+    if (vertexShader)
+        m_context->deleteShader(vertexShader);
+    if (fragmentShader)
+        m_context->deleteShader(fragmentShader);
+
+    return program;
+}
+