diff options
Diffstat (limited to 'tests/manual/rhi/triquadcube/quadrenderer.cpp')
-rw-r--r-- | tests/manual/rhi/triquadcube/quadrenderer.cpp | 148 |
1 files changed, 148 insertions, 0 deletions
diff --git a/tests/manual/rhi/triquadcube/quadrenderer.cpp b/tests/manual/rhi/triquadcube/quadrenderer.cpp new file mode 100644 index 0000000000..6137fb1b9a --- /dev/null +++ b/tests/manual/rhi/triquadcube/quadrenderer.cpp @@ -0,0 +1,148 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the examples of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, you may use this file under the terms of the BSD license +** as follows: +** +** "Redistribution and use in source and binary forms, with or without +** modification, are permitted provided that the following conditions are +** met: +** * Redistributions of source code must retain the above copyright +** notice, this list of conditions and the following disclaimer. +** * Redistributions in binary form must reproduce the above copyright +** notice, this list of conditions and the following disclaimer in +** the documentation and/or other materials provided with the +** distribution. +** * Neither the name of The Qt Company Ltd nor the names of its +** contributors may be used to endorse or promote products derived +** from this software without specific prior written permission. +** +** +** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "quadrenderer.h" +#include <QFile> +#include <QtGui/private/qshader_p.h> + +// Renders a quad using indexed drawing. No QRhiGraphicsPipeline is created, it +// expects to reuse the one created by TriangleRenderer. A separate +// QRhiShaderResourceBindings is still needed, this will override the one the +// QRhiGraphicsPipeline references. + +static float vertexData[] = +{ // Y up (note m_proj), CCW + -0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 0.0f, 0.0f, + -0.5f, -0.5f, 0.0f, 1.0f, 0.0f, 0.0f, 1.0f, + 0.5f, -0.5f, 0.0f, 0.0f, 1.0f, 1.0f, 1.0f, + 0.5f, 0.5f, 1.0f, 0.0f, 0.0f, 1.0f, 1.0f +}; + +static quint16 indexData[] = +{ + 0, 1, 2, 0, 2, 3 +}; + +void QuadRenderer::initResources(QRhiRenderPassDescriptor *) +{ + m_vbuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::VertexBuffer, sizeof(vertexData)); + m_vbuf->build(); + m_vbufReady = false; + + m_ibuf = m_r->newBuffer(QRhiBuffer::Immutable, QRhiBuffer::IndexBuffer, sizeof(indexData)); + m_ibuf->build(); + + m_ubuf = m_r->newBuffer(QRhiBuffer::Dynamic, QRhiBuffer::UniformBuffer, 68); + m_ubuf->build(); + + m_srb = m_r->newShaderResourceBindings(); + m_srb->setBindings({ + QRhiShaderResourceBinding::uniformBuffer(0, QRhiShaderResourceBinding::VertexStage | QRhiShaderResourceBinding::FragmentStage, m_ubuf) + }); + m_srb->build(); +} + +void QuadRenderer::setPipeline(QRhiGraphicsPipeline *ps) +{ + m_ps = ps; +} + +void QuadRenderer::resize(const QSize &pixelSize) +{ + m_proj = m_r->clipSpaceCorrMatrix(); + m_proj.perspective(45.0f, pixelSize.width() / (float) pixelSize.height(), 0.01f, 100.0f); + m_proj.translate(0, 0, -4); +} + +void QuadRenderer::releaseResources() +{ + delete m_srb; + m_srb = nullptr; + + delete m_ubuf; + m_ubuf = nullptr; + + delete m_ibuf; + m_ibuf = nullptr; + + delete m_vbuf; + m_vbuf = nullptr; +} + +void QuadRenderer::queueResourceUpdates(QRhiResourceUpdateBatch *resourceUpdates) +{ + if (!m_vbufReady) { + m_vbufReady = true; + resourceUpdates->uploadStaticBuffer(m_vbuf, vertexData); + resourceUpdates->uploadStaticBuffer(m_ibuf, indexData); + } + + m_rotation += 1.0f; + QMatrix4x4 mvp = m_proj; + mvp.translate(m_translation); + mvp.rotate(m_rotation, 0, 1, 0); + resourceUpdates->updateDynamicBuffer(m_ubuf, 0, 64, mvp.constData()); + + if (!m_opacityReady) { + m_opacityReady = true; + const float opacity = 1.0f; + resourceUpdates->updateDynamicBuffer(m_ubuf, 64, 4, &opacity); + } +} + +void QuadRenderer::queueDraw(QRhiCommandBuffer *cb, const QSize &/*outputSizeInPixels*/) +{ + cb->setGraphicsPipeline(m_ps); + //cb->setViewport(QRhiViewport(0, 0, outputSizeInPixels.width(), outputSizeInPixels.height())); + cb->setShaderResources(m_srb); + const QRhiCommandBuffer::VertexInput vbufBinding(m_vbuf, 0); + cb->setVertexInput(0, 1, &vbufBinding, m_ibuf, 0, QRhiCommandBuffer::IndexUInt16); + cb->drawIndexed(6); +} |