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64 lines
2.0 KiB
C
64 lines
2.0 KiB
C
/*
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* Copyright 2023 Conor McCarthy for CodeWeavers
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#ifndef __VKD3D_SHADER_UTILS_H
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#define __VKD3D_SHADER_UTILS_H
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#include "vkd3d_shader.h"
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#define TAG_DXIL VKD3D_MAKE_TAG('D', 'X', 'I', 'L')
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#define TAG_SHDR VKD3D_MAKE_TAG('S', 'H', 'D', 'R')
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#define TAG_SHEX VKD3D_MAKE_TAG('S', 'H', 'E', 'X')
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static inline enum vkd3d_result vkd3d_shader_parse_dxbc_source_type(const struct vkd3d_shader_code *dxbc,
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enum vkd3d_shader_source_type *type, char **messages)
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{
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struct vkd3d_shader_dxbc_desc desc;
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enum vkd3d_result ret;
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unsigned int i;
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*type = VKD3D_SHADER_SOURCE_NONE;
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if ((ret = vkd3d_shader_parse_dxbc(dxbc, 0, &desc, messages)) < 0)
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return ret;
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for (i = 0; i < desc.section_count; ++i)
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{
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uint32_t tag = desc.sections[i].tag;
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if (tag == TAG_SHDR || tag == TAG_SHEX)
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{
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*type = VKD3D_SHADER_SOURCE_DXBC_TPF;
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}
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else if (tag == TAG_DXIL)
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{
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*type = VKD3D_SHADER_SOURCE_DXBC_DXIL;
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/* Default to DXIL if both are present. */
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break;
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}
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}
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vkd3d_shader_free_dxbc(&desc);
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if (*type == VKD3D_SHADER_SOURCE_NONE)
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return VKD3D_ERROR_INVALID_SHADER;
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return VKD3D_OK;
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}
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#endif /* __VKD3D_SHADER_UTILS_H */
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