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LibGL: Add depth buffer class

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Stephan Unverwerth 2021-05-08 22:18:34 +02:00 • committed by Andreas Kling
parent a8fc4be47a
commit 608f81e6c2
3 changed files with 64 additions and 0 deletions
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36
Userland/Libraries/LibGL/DepthBuffer.cpp Normal file
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/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@gmx.de>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include "DepthBuffer.h"
namespace GL {
DepthBuffer::DepthBuffer(Gfx::IntSize const& size)
: m_size(size)
, m_data(new float[size.width() * size.height()])
{
}
DepthBuffer::~DepthBuffer()
{
delete[] m_data;
}
float* DepthBuffer::scanline(int y)
{
VERIFY(y >= 0 && y < m_size.height());
return &m_data[y * m_size.width()];
}
void DepthBuffer::clear(float depth)
{
int num_entries = m_size.width() * m_size.height();
for (int i = 0; i < num_entries; ++i) {
m_data[i] = depth;
}
}
}