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LibGL: Check that texture name is allocated before marking it as free

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glDeleteTextures previously did not check that the texture name was
allocated by glGenTextures before adding it to the free texture name
list.

This means that if you delete a texture twice in a row, the name will
appear twice in the free texture list, making glGenTextures return the
same texture name twice in a row.
This commit is contained in:
Luke Wilde 2022-06-01 14:38:58 +01:00 • committed by Andreas Kling
parent a88e3bde18
commit bc5dd8dd0f
3 changed files with 46 additions and 2 deletions
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5
Userland/Libraries/LibGL/Textures.cpp
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@ -107,11 +107,12 @@ void GLContext::gl_delete_textures(GLsizei n, GLuint const* textures)
if (name == 0)
continue;
m_name_allocator.free(name);
auto texture_object = m_allocated_textures.find(name);
if (texture_object == m_allocated_textures.end() || texture_object->value.is_null())
continue;
m_name_allocator.free(name);
auto texture = texture_object->value;
// Check all texture units