1
Fork 0
mirror of https://github.com/RGBCube/serenity synced 2025-07-25 06:47:35 +00:00

LibGL: Only pass bound texture units to rasterizer

Before, `SoftwareRasterizer` was iterating over all 32 possible texture
units for each fragment and checking each if they're bound to a texture.

After this change, an intrusive list containing only texture units with
bound textures is passed to the rasterizer. In GLQuake, this results in
a performance improvement of ~30% (from 12 to 16 FPS in the first demo)
on my machine.
This commit is contained in:
Jelle Raaijmakers 2021-12-12 21:43:21 +01:00 committed by Brian Gianforcaro
parent f201567153
commit 4e3ed16527
5 changed files with 16 additions and 10 deletions

View file

@ -328,6 +328,12 @@ void SoftwareGLContext::gl_end()
}
}
m_bound_texture_units.clear();
for (auto& texture_unit : m_texture_units) {
if (texture_unit.is_bound())
m_bound_texture_units.append(texture_unit);
}
for (size_t i = 0; i < processed_triangles.size(); i++) {
GLTriangle& triangle = processed_triangles.at(i);
@ -356,7 +362,7 @@ void SoftwareGLContext::gl_end()
swap(triangle.vertices[0], triangle.vertices[1]);
}
m_rasterizer.submit_triangle(triangle, m_texture_units);
m_rasterizer.submit_triangle(triangle, m_bound_texture_units);
}
}