3a2cc2c2ec
This reverts commit5bb82cbecd. Reason for revert: <INSERT REASONING HERE> Original change's description: > Revert "Revert "Revert "Revert "Redefine the meaning of sample counts in GPU backend."""" > > This reverts commit18c52a7b52. > > Also relands "More sample count cleanup:" and "Add new GrContext queries for imagability, surfacability, and max sample count of color types" > > > Bug: skia: > Change-Id: I4028105a3a1f16ce3944e134619eb6245af6b947 > Reviewed-on: https://skia-review.googlesource.com/102940 > Reviewed-by: Brian Salomon <bsalomon@google.com> > Commit-Queue: Brian Salomon <bsalomon@google.com> TBR=egdaniel@google.com,bsalomon@google.com Change-Id: Idee23be2f1719f0bdc9305043e95a2d589bee8d1 No-Presubmit: true No-Tree-Checks: true No-Try: true Bug: skia: Reviewed-on: https://skia-review.googlesource.com/103220 Reviewed-by: Brian Salomon <bsalomon@google.com> Commit-Queue: Brian Salomon <bsalomon@google.com>
103 lines
3.0 KiB
C++
103 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 > 0);
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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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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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