mirror of
https://github.com/RGBCube/serenity
synced 2025-07-25 13:57:35 +00:00
LibSoftGPU: Add Image class
This serves as the storage for all image types. 1D, 2D, 3D, Cube and image arrays. Upon construction a full mipmap chain is generated and the image is immutable afterwards with respect to its layout.
This commit is contained in:
parent
a9e27b9a0f
commit
91ccf9958f
4 changed files with 235 additions and 0 deletions
44
Userland/Libraries/LibSoftGPU/Image.cpp
Normal file
44
Userland/Libraries/LibSoftGPU/Image.cpp
Normal file
|
@ -0,0 +1,44 @@
|
|||
/*
|
||||
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
|
||||
*
|
||||
* SPDX-License-Identifier: BSD-2-Clause
|
||||
*/
|
||||
|
||||
#include <LibSoftGPU/Image.h>
|
||||
|
||||
namespace SoftGPU {
|
||||
|
||||
Image::Image(ImageFormat format, unsigned width, unsigned height, unsigned depth, unsigned levels, unsigned layers)
|
||||
: m_format(format)
|
||||
, m_width(width)
|
||||
, m_height(height)
|
||||
, m_depth(depth)
|
||||
, m_num_layers(layers)
|
||||
{
|
||||
VERIFY(width > 0);
|
||||
VERIFY(height > 0);
|
||||
VERIFY(depth > 0);
|
||||
VERIFY(levels > 0);
|
||||
VERIFY(layers > 0);
|
||||
|
||||
m_mipmap_sizes.append({ width, height, depth });
|
||||
m_mipmap_offsets.append(0);
|
||||
|
||||
m_mipchain_size += width * height * depth * element_size(format);
|
||||
|
||||
while (--levels && (width > 1 || height > 1 || depth > 1)) {
|
||||
width = max(width / 2, 1);
|
||||
height = max(height / 2, 1);
|
||||
depth = max(depth / 2, 1);
|
||||
m_mipmap_sizes.append({ width, height, depth });
|
||||
m_mipmap_offsets.append(m_mipchain_size);
|
||||
|
||||
m_mipchain_size += width * height * depth * element_size(format);
|
||||
}
|
||||
|
||||
m_num_levels = m_mipmap_sizes.size();
|
||||
|
||||
m_data.resize(m_mipchain_size * m_num_layers);
|
||||
}
|
||||
|
||||
}
|
Loading…
Add table
Add a link
Reference in a new issue