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/*
* Copyright (c) 2022, Stephan Unverwerth <s.unverwerth@serenityos.org>
*
* SPDX-License-Identifier: BSD-2-Clause
*/
#include <AK/String.h>
#include <LibGL/Shaders/Shader.h>
#include <LibGLSL/Compiler.h>
namespace GL {
NonnullRefPtr<Shader> Shader::create(GLenum shader_type)
{
return adopt_ref(*new Shader(shader_type));
}
ErrorOr<void> Shader::add_source(StringView source_code)
{
auto source_code_content = TRY(String::from_utf8(source_code));
TRY(m_sources.try_append(move(source_code_content)));
return {};
}
ErrorOr<void> Shader::compile()
{
m_info_log = TRY(String::from_utf8(""sv));
GLSL::Compiler compiler;
auto object_file_or_error = compiler.compile(m_sources);
if (object_file_or_error.is_error()) {
m_compile_status = false;
m_info_log = compiler.messages();
return object_file_or_error.error();
}
m_object_file = object_file_or_error.release_value();
m_compile_status = true;
return {};
}
size_t Shader::info_log_length() const
{
if (!m_info_log.has_value())
return 0;
// Per the spec we return the size including the null terminator
return m_info_log.value().bytes().size() + 1;
}
size_t Shader::combined_source_length() const
{
if (m_sources.is_empty())
return 0;
size_t combined_size = 0;
for (auto source : m_sources)
combined_size += source.bytes().size();
// Per the spec we return the size including the null terminator
return combined_size + 1;
}
}
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