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      1 /*
      2  * Copyright  2015 Intel Corporation
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
     20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
     21  * IN THE SOFTWARE.
     22  *
     23  * Authors:
     24  *    Jason Ekstrand (jason (at) jlekstrand.net)
     25  *
     26  */
     27 
     28 #ifndef _NIR_SPIRV_H_
     29 #define _NIR_SPIRV_H_
     30 
     31 #include "compiler/nir/nir.h"
     32 #include "compiler/shader_info.h"
     33 
     34 #ifdef __cplusplus
     35 extern "C" {
     36 #endif
     37 
     38 struct nir_spirv_specialization {
     39    uint32_t id;
     40    union {
     41       uint32_t data32;
     42       uint64_t data64;
     43    };
     44 };
     45 
     46 enum nir_spirv_debug_level {
     47    NIR_SPIRV_DEBUG_LEVEL_INFO,
     48    NIR_SPIRV_DEBUG_LEVEL_WARNING,
     49    NIR_SPIRV_DEBUG_LEVEL_ERROR,
     50 };
     51 
     52 struct spirv_to_nir_options {
     53    /* Whether or not to lower all workgroup variable access to offsets
     54     * up-front.  This means you will _shared intrinsics instead of _var
     55     * for workgroup data access.
     56     *
     57     * This is currently required for full variable pointers support.
     58     */
     59    bool lower_workgroup_access_to_offsets;
     60 
     61    struct spirv_supported_capabilities caps;
     62 
     63    struct {
     64       void (*func)(void *private_data,
     65                    enum nir_spirv_debug_level level,
     66                    size_t spirv_offset,
     67                    const char *message);
     68       void *private_data;
     69    } debug;
     70 };
     71 
     72 nir_function *spirv_to_nir(const uint32_t *words, size_t word_count,
     73                            struct nir_spirv_specialization *specializations,
     74                            unsigned num_specializations,
     75                            gl_shader_stage stage, const char *entry_point_name,
     76                            const struct spirv_to_nir_options *options,
     77                            const nir_shader_compiler_options *nir_options);
     78 
     79 #ifdef __cplusplus
     80 }
     81 #endif
     82 
     83 #endif /* _NIR_SPIRV_H_ */
     84