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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
* The Original Code is Copyright (C) 2021 Blender Foundation.
* All rights reserved.
*/
/** \file
* \ingroup gpu
*/
#pragma once
#include "BLI_string_ref.hh"
#include "BLI_vector.hh"
namespace blender::gpu {
enum class GLShaderConverterState {
Ok,
NOT_MATCHING_PUSH_CONSTANT_NAME,
};
class GLShaderConverter {
public:
struct {
std::string name;
} push_constants;
GLShaderConverterState status = GLShaderConverterState::Ok;
private:
Vector<std::string> patched_sources_;
public:
void patch(MutableSpan<const char *> sources);
bool has_error() const;
void free();
private:
std::string patch(StringRef src);
bool is_valid_name_char(const char c) const;
StringRef skip_whitespace(StringRef src);
StringRef extract_name(StringRef src);
std::string patch_push_constants(StringRef src);
MEM_CXX_CLASS_ALLOC_FUNCS("GLShaderConverter");
};
} // namespace blender::gpu
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