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LibGL: Add depth buffer class
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3 changed files with 64 additions and 0 deletions
36
Userland/Libraries/LibGL/DepthBuffer.cpp
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36
Userland/Libraries/LibGL/DepthBuffer.cpp
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/*
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* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@gmx.de>
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*
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* SPDX-License-Identifier: BSD-2-Clause
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*/
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#include "DepthBuffer.h"
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namespace GL {
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DepthBuffer::DepthBuffer(Gfx::IntSize const& size)
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: m_size(size)
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, m_data(new float[size.width() * size.height()])
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{
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}
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DepthBuffer::~DepthBuffer()
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{
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delete[] m_data;
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}
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float* DepthBuffer::scanline(int y)
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{
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VERIFY(y >= 0 && y < m_size.height());
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return &m_data[y * m_size.width()];
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}
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void DepthBuffer::clear(float depth)
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{
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int num_entries = m_size.width() * m_size.height();
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for (int i = 0; i < num_entries; ++i) {
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m_data[i] = depth;
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}
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}
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}
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