16e3ddea6a
createPlatform -> wrapBackend R=robertphillips@google.com Review URL: https://codereview.appspot.com/6785044 git-svn-id: http://skia.googlecode.com/svn/trunk@6123 2bbb7eff-a529-9590-31e7-b0007b416f81
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
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/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#include "SkGLWidget.h"
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SkGLWidget::SkGLWidget(SkDebugger* debugger) : QGLWidget() {
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this->setStyleSheet("QWidget {background-color: white; border: 1px solid #cccccc;}");
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fDebugger = debugger;
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fCurIntf = NULL;
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fCurContext = NULL;
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fGpuDevice = NULL;
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fCanvas = NULL;
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}
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SkGLWidget::~SkGLWidget() {
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SkSafeUnref(fCurIntf);
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SkSafeUnref(fCurContext);
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SkSafeUnref(fGpuDevice);
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SkSafeUnref(fCanvas);
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}
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void SkGLWidget::initializeGL() {
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fCurIntf = GrGLCreateNativeInterface();
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fCurContext = GrContext::Create(kOpenGL_GrBackend, (GrBackendContext) fCurIntf);
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GrBackendRenderTargetDesc desc = this->getDesc(this->width(), this->height());
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GrRenderTarget* curRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
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fGpuDevice = new SkGpuDevice(fCurContext, curRenderTarget);
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fCanvas = new SkCanvas(fGpuDevice);
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curRenderTarget->unref();
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glClearColor(1, 1, 1, 0);
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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}
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void SkGLWidget::resizeGL(int w, int h) {
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GrBackendRenderTargetDesc desc = this->getDesc(w, h);
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GrRenderTarget* curRenderTarget = fCurContext->wrapBackendRenderTarget(desc);
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SkSafeUnref(fGpuDevice);
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SkSafeUnref(fCanvas);
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fGpuDevice = new SkGpuDevice(fCurContext, curRenderTarget);
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fCanvas = new SkCanvas(fGpuDevice);
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fDebugger->resize(w, h);
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draw();
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}
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void SkGLWidget::paintGL() {
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if (!this->isHidden()) {
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fDebugger->draw(fCanvas);
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// TODO(chudy): Implement an optional flush button in Gui.
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fCanvas->flush();
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emit drawComplete();
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}
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}
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GrBackendRenderTargetDesc SkGLWidget::getDesc(int w, int h) {
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GrBackendRenderTargetDesc desc;
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desc.fWidth = SkScalarRound(this->width());
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desc.fHeight = SkScalarRound(this->height());
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desc.fConfig = kSkia8888_PM_GrPixelConfig;
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GR_GL_GetIntegerv(fCurIntf, GR_GL_SAMPLES, &desc.fSampleCnt);
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GR_GL_GetIntegerv(fCurIntf, GR_GL_STENCIL_BITS, &desc.fStencilBits);
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GrGLint buffer;
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GR_GL_GetIntegerv(fCurIntf, GR_GL_FRAMEBUFFER_BINDING, &buffer);
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desc.fRenderTargetHandle = buffer;
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return desc;
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}
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