1 files changed, 98 insertions, 0 deletions
diff --git a/chromium/third_party/skia/debugger/QT/SkGLWidget.cpp b/chromium/third_party/skia/debugger/QT/SkGLWidget.cpp
new file mode 100644
index 00000000000..019654fe0d2
--- /dev/null
+++ b/chromium/third_party/skia/debugger/QT/SkGLWidget.cpp
@@ -0,0 +1,98 @@
+
+/*
+ * Copyright 2012 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+
+#include "SkGLWidget.h"
+
+#if SK_SUPPORT_GPU
+
+SkGLWidget::SkGLWidget(SkDebugger* debugger) : QGLWidget() {
+    fDebugger = debugger;
+    fCurIntf = NULL;
+    fCurContext = NULL;
+    fGpuDevice = NULL;
+    fCanvas = NULL;
+}
+
+SkGLWidget::~SkGLWidget() {
+    SkSafeUnref(fCurIntf);
+    SkSafeUnref(fCurContext);
+    SkSafeUnref(fGpuDevice);
+    SkSafeUnref(fCanvas);
+}
+
+void SkGLWidget::setSampleCount(int sampleCount)
+{
+    QGLFormat currentFormat = format();
+    currentFormat.setSampleBuffers(sampleCount > 0);
+    currentFormat.setSamples(sampleCount);
+    setFormat(currentFormat);
+}
+
+void SkGLWidget::initializeGL() {
+    fCurIntf = GrGLCreateNativeInterface();
+    if (!fCurIntf) {
+        return;
+    }
+    glStencilMask(0xffffffff);
+    glClearStencil(0);
+    glClear(GL_STENCIL_BUFFER_BIT);
+
+    fCurContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext) fCurIntf);
+    GrBackendRenderTargetDesc desc = this->getDesc(this->width(), this->height());
+    desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
+    GrRenderTarget* curRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
+    fGpuDevice = new SkGpuDevice(fCurContext, curRenderTarget);
+    fCanvas = new SkCanvas(fGpuDevice);
+    curRenderTarget->unref();
+}
+
+void SkGLWidget::resizeGL(int w, int h) {
+    if (fCurContext) {
+        glDisable(GL_SCISSOR_TEST);
+        glStencilMask(0xffffffff);
+        glClearStencil(0);
+        glClear(GL_STENCIL_BUFFER_BIT);
+        fCurContext->resetContext();
+
+        GrBackendRenderTargetDesc desc = this->getDesc(w, h);
+        desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
+        GrRenderTarget* curRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
+        SkSafeUnref(fGpuDevice);
+        SkSafeUnref(fCanvas);
+        fGpuDevice = new SkGpuDevice(fCurContext, curRenderTarget);
+        fCanvas = new SkCanvas(fGpuDevice);
+    }
+    fDebugger->resize(w, h);
+    draw();
+}
+
+void SkGLWidget::paintGL() {
+    if (!this->isHidden() && fCanvas) {
+        fDebugger->draw(fCanvas);
+        // TODO(chudy): Implement an optional flush button in Gui.
+        fCanvas->flush();
+        emit drawComplete();
+    }
+}
+
+GrBackendRenderTargetDesc SkGLWidget::getDesc(int w, int h) {
+    GrBackendRenderTargetDesc desc;
+    desc.fWidth = SkScalarRoundToInt(this->width());
+    desc.fHeight = SkScalarRoundToInt(this->height());
+    desc.fConfig = kSkia8888_GrPixelConfig;
+    GR_GL_GetIntegerv(fCurIntf, GR_GL_SAMPLES, &desc.fSampleCnt);
+    GR_GL_GetIntegerv(fCurIntf, GR_GL_STENCIL_BITS, &desc.fStencilBits);
+    GrGLint buffer;
+    GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
+    desc.fRenderTargetHandle = buffer;
+
+    return desc;
+}
+
+#endif