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LibGL+LibSoftGPU: Move rendering related code to LibSoftGPU library

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This introduces a new library, LibSoftGPU, that incorporates all
rendering related features that formerly resided within LibGL itself.

Going forward we will make both libraries completely independent from
each other allowing LibGL to load different, possibly accelerated,
rendering backends.
This commit is contained in:
Stephan Unverwerth 2021-12-16 20:32:38 +01:00 • committed by Brian Gianforcaro
parent 46b1c2d609
commit ad3d5d43bd
12 changed files with 58 additions and 45 deletions
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44
Userland/Libraries/LibSoftGPU/DepthBuffer.cpp Normal file
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/*
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibSoftGPU/DepthBuffer.h>
namespace SoftGPU {
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;
}
}
void DepthBuffer::clear(Gfx::IntRect bounds, float depth)
{
bounds.intersect({ 0, 0, m_size.width(), m_size.height() });
for (int y = bounds.top(); y <= bounds.bottom(); ++y)
for (int x = bounds.left(); x <= bounds.right(); ++x)
m_data[y * m_size.width() + x] = depth;
}
}