bdecacfbe4
This reverts commit 3a2cc2c2ec.
Fix code with samplecnt=0 that slipped in between trybots/CQ and landing of previous version
Change-Id: Iab19f2e8d1e9901601c8c76244d7a88c5d707fab
Reviewed-on: https://skia-review.googlesource.com/103181
Reviewed-by: Brian Salomon <bsalomon@google.com>
Commit-Queue: Brian Salomon <bsalomon@google.com>
104 lines
3.0 KiB
C++
104 lines
3.0 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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#if SK_SUPPORT_GPU
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SkGLWidget::SkGLWidget(SkDebugger* debugger) : QGLWidget() {
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fDebugger = debugger;
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}
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SkGLWidget::~SkGLWidget() {
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}
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void SkGLWidget::setSampleCount(int sampleCount) {
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QGLFormat currentFormat = format();
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currentFormat.setSampleBuffers(sampleCount > 1);
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currentFormat.setSamples(sampleCount);
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setFormat(currentFormat);
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}
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void SkGLWidget::initializeGL() {
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if (!fCurIntf) {
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fCurIntf = GrGLMakeNativeInterface();
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}
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if (!fCurIntf) {
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return;
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}
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// The call may come multiple times, for example after setSampleCount(). The QGLContext will be
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// different, but we do not have a mechanism to catch the destroying of QGLContext, so that
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// proper resource cleanup could be made.
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if (fCurContext) {
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fCurContext->abandonContext();
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}
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fGpuSurface = nullptr;
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fCanvas = nullptr;
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fCurContext = GrContext::MakeGL(fCurIntf.get());
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}
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void SkGLWidget::createRenderTarget() {
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if (!fCurContext) {
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return;
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}
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glDisable(GL_SCISSOR_TEST);
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glStencilMask(0xffffffff);
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glClearStencil(0);
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glClear(GL_STENCIL_BUFFER_BIT);
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fCurContext->resetContext();
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GrBackendRenderTarget backendRenderTarget = this->getBackendRenderTarget();
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SkColorType colorType;
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if (kRGBA_8888_GrPixelConfig == kSkia8888_GrPixelConfig) {
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colorType = kRGBA_8888_SkColorType;
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} else {
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colorType = kBGRA_8888_SkColorType;
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}
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fGpuSurface = SkSurface::MakeFromBackendRenderTarget(fCurContext.get(), backendRenderTarget,
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kBottomLeft_GrSurfaceOrigin, colorType,
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nullptr, nullptr);
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fCanvas = fGpuSurface->getCanvas();
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}
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void SkGLWidget::resizeGL(int w, int h) {
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SkASSERT(w == this->width() && h == this->height());
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this->createRenderTarget();
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}
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void SkGLWidget::paintGL() {
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if (!this->isHidden() && fCanvas) {
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fCurContext->resetContext();
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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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Q_EMIT drawComplete();
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}
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}
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GrBackendRenderTarget SkGLWidget::getBackendRenderTarget() {
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GrGLFramebufferInfo info;
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int stencilBits;
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int sampleCnt;
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GR_GL_GetIntegerv(fCurIntf.get(), GR_GL_FRAMEBUFFER_BINDING, &info.fFBOID);
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GR_GL_GetIntegerv(fCurIntf.get(), GR_GL_SAMPLES, &sampleCnt);
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sampleCnt = SkTMax(sampleCnt, 1);
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GR_GL_GetIntegerv(fCurIntf.get(), GR_GL_STENCIL_BITS, &stencilBits);
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// We are on desktop so we assume the internal config is RGBA
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info.fFormat = GR_GL_RGBA8;
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return GrBackendRenderTarget(SkScalarRoundToInt(this->width()),
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SkScalarRoundToInt(this->height()),
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sampleCnt,
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stencilBits,
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info);
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}
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#endif
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