a8d7f0b13c
This paves the way for removing the 'fTile' parameter from SkPictureShader (although that should be a different CL). If we like this we could also move to providing an entire cull SkRect. R=reed@google.com, mtklein@google.com, fmalita@google.com, fmalita@chromium.org Author: robertphillips@google.com Review URL: https://codereview.chromium.org/513983002
99 lines
2.7 KiB
C++
99 lines
2.7 KiB
C++
|
|
/*
|
|
* 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 = SkGpuDevice::Create(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 = SkGpuDevice::Create(curRenderTarget);
|
|
fCanvas = new SkCanvas(fGpuDevice);
|
|
}
|
|
fDebugger->setWindowSize(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
|