ladybird/Userland/Libraries/LibGL/Tex/NameAllocator.cpp
Jesse Buhagiar 21dff6d40b LibGL: Add Texture Name Allocation
Texture names can now be allocated via
`glGenTextures` and deallocated via `glDeleteTextures`.
2021-05-26 16:36:53 +04:30

33 lines
849 B
C++

/*
* Copyright (c) 2021, Jesse Buhagiar <jooster669@gmail.com>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <LibGL/Tex/NameAllocator.h>
namespace GL {
void TextureNameAllocator::allocate(GLsizei count, GLuint* textures)
{
for (auto i = 0; i < count; ++i) {
if (!m_free_texture_names.is_empty()) {
textures[i] = m_free_texture_names.top();
m_free_texture_names.pop();
} else {
// We're out of free previously allocated names. Let's allocate a new contiguous amount from the
// last known texture name
textures[i] = m_last_texture_id++;
}
}
}
void TextureNameAllocator::free(GLsizei count, const GLuint* textures)
{
size_t tex_array_index = 0;
while (count-- > 0)
m_free_texture_names.push(textures[tex_array_index++]);
}
}