mirror of
https://github.com/RGBCube/serenity
synced 2025-10-31 19:02:44 +00:00
49 lines
1.2 KiB
C++
49 lines
1.2 KiB
C++
/*
|
|
* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
|
|
* Copyright (c) 2021, Stephan Unverwerth <s.unverwerth@serenityos.org>
|
|
*
|
|
* SPDX-License-Identifier: BSD-2-Clause
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#include <AK/Vector.h>
|
|
#include <LibGL/GL/gl.h>
|
|
#include <LibGfx/Vector4.h>
|
|
|
|
namespace GL {
|
|
|
|
class MipMap {
|
|
public:
|
|
MipMap() = default;
|
|
~MipMap() = default;
|
|
|
|
void set_width(GLsizei width) { m_width = width; }
|
|
void set_height(GLsizei height) { m_height = height; }
|
|
GLsizei width() const { return m_width; }
|
|
GLsizei height() const { return m_height; }
|
|
|
|
Vector<u32>& pixel_data() { return m_pixel_data; }
|
|
const Vector<u32>& pixel_data() const { return m_pixel_data; }
|
|
|
|
FloatVector4 texel(unsigned x, unsigned y) const
|
|
{
|
|
if (x >= (unsigned)m_width || y >= (unsigned)m_height)
|
|
return { 0, 0, 0, 0 };
|
|
|
|
u32 texel = m_pixel_data.at(y * m_width + x);
|
|
|
|
return {
|
|
((texel >> 16) & 0xff) / 255.f,
|
|
((texel >> 8) & 0xff) / 255.f,
|
|
(texel & 0xff) / 255.f,
|
|
((texel >> 24) & 0xff) / 255.f
|
|
};
|
|
}
|
|
|
|
private:
|
|
GLsizei m_width { 0 };
|
|
GLsizei m_height { 0 };
|
|
Vector<u32> m_pixel_data;
|
|
};
|
|
}
|