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1 /*
2  * Copyright 2017 Advanced Micro Devices, Inc.
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  * on the rights to use, copy, modify, merge, publish, distribute, sub
8  * license, and/or sell copies of the Software, and to permit persons to whom
9  * the 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 NON-INFRINGEMENT. IN NO EVENT SHALL
18  * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
19  * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
20  * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
21  * USE OR OTHER DEALINGS IN THE SOFTWARE.
22  */
23 
24 #include "glspirv.h"
25 #include "errors.h"
26 #include "util/u_atomic.h"
27 
28 void
_mesa_spirv_module_reference(struct gl_spirv_module ** dest,struct gl_spirv_module * src)29 _mesa_spirv_module_reference(struct gl_spirv_module **dest,
30                              struct gl_spirv_module *src)
31 {
32    struct gl_spirv_module *old = *dest;
33 
34    if (old && p_atomic_dec_zero(&old->RefCount))
35       free(old);
36 
37    *dest = src;
38 
39    if (src)
40       p_atomic_inc(&src->RefCount);
41 }
42 
43 void
_mesa_shader_spirv_data_reference(struct gl_shader_spirv_data ** dest,struct gl_shader_spirv_data * src)44 _mesa_shader_spirv_data_reference(struct gl_shader_spirv_data **dest,
45                                   struct gl_shader_spirv_data *src)
46 {
47    struct gl_shader_spirv_data *old = *dest;
48 
49    if (old && p_atomic_dec_zero(&old->RefCount)) {
50       _mesa_spirv_module_reference(&(*dest)->SpirVModule, NULL);
51       ralloc_free(old);
52    }
53 
54    *dest = src;
55 
56    if (src)
57       p_atomic_inc(&src->RefCount);
58 }
59 
60 void
_mesa_spirv_shader_binary(struct gl_context * ctx,unsigned n,struct gl_shader ** shaders,const void * binary,size_t length)61 _mesa_spirv_shader_binary(struct gl_context *ctx,
62                           unsigned n, struct gl_shader **shaders,
63                           const void* binary, size_t length)
64 {
65    struct gl_spirv_module *module;
66    struct gl_shader_spirv_data *spirv_data;
67 
68    assert(length >= 0);
69 
70    module = malloc(sizeof(*module) + length);
71    if (!module) {
72       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderBinary");
73       return;
74    }
75 
76    p_atomic_set(&module->RefCount, 0);
77    module->Length = length;
78    memcpy(&module->Binary[0], binary, length);
79 
80    for (int i = 0; i < n; ++i) {
81       struct gl_shader *sh = shaders[i];
82 
83       spirv_data = rzalloc(NULL, struct gl_shader_spirv_data);
84       _mesa_shader_spirv_data_reference(&sh->spirv_data, spirv_data);
85       _mesa_spirv_module_reference(&spirv_data->SpirVModule, module);
86 
87       sh->CompileStatus = compile_failure;
88 
89       free((void *)sh->Source);
90       sh->Source = NULL;
91       free((void *)sh->FallbackSource);
92       sh->FallbackSource = NULL;
93 
94       ralloc_free(sh->ir);
95       sh->ir = NULL;
96       ralloc_free(sh->symbols);
97       sh->symbols = NULL;
98    }
99 }
100 
101 void GLAPIENTRY
_mesa_SpecializeShaderARB(GLuint shader,const GLchar * pEntryPoint,GLuint numSpecializationConstants,const GLuint * pConstantIndex,const GLuint * pConstantValue)102 _mesa_SpecializeShaderARB(GLuint shader,
103                           const GLchar *pEntryPoint,
104                           GLuint numSpecializationConstants,
105                           const GLuint *pConstantIndex,
106                           const GLuint *pConstantValue)
107 {
108    GET_CURRENT_CONTEXT(ctx);
109 
110    /* Just return GL_INVALID_OPERATION error while this is boilerplate */
111    _mesa_error(ctx, GL_INVALID_OPERATION, "SpecializeShaderARB");
112 }
113