src/mesa/main/glspirv.c

   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
  26 #include "errors.h"
  27
  28 #include "errors.h"
  29
  30 #include "util/u_atomic.h"
  31
  32 void
  33 _mesa_spirv_module_reference(struct gl_spirv_module **dest,
  34                              struct gl_spirv_module *src)
  35 {
  36    struct gl_spirv_module *old = *dest;
  37
  38    if (old && p_atomic_dec_zero(&old->RefCount))
  39       free(old);
  40
  41    *dest = src;
  42
  43    if (src)
  44       p_atomic_inc(&src->RefCount);
  45 }
  46
  47 void
  48 _mesa_shader_spirv_data_reference(struct gl_shader_spirv_data **dest,
  49                                   struct gl_shader_spirv_data *src)
  50 {
  51    struct gl_shader_spirv_data *old = *dest;
  52
  53    if (old && p_atomic_dec_zero(&old->RefCount)) {
  54       _mesa_spirv_module_reference(&(*dest)->SpirVModule, NULL);
  55       ralloc_free(old);
  56    }
  57
  58    *dest = src;
  59
  60    if (src)
  61       p_atomic_inc(&src->RefCount);
  62 }
  63
  64 void
  65 _mesa_spirv_shader_binary(struct gl_context *ctx,
  66                           unsigned n, struct gl_shader **shaders,
  67                           const void* binary, size_t length)
  68 {
  69    struct gl_spirv_module *module;
  70    struct gl_shader_spirv_data *spirv_data;
  71
  72    assert(length >= 0);
  73
  74    module = malloc(sizeof(*module) + length);
  75    if (!module) {
  76       _mesa_error(ctx, GL_OUT_OF_MEMORY, "glShaderBinary");
  77       return;
  78    }
  79
  80    p_atomic_set(&module->RefCount, 0);
  81    module->Length = length;
  82    memcpy(&module->Binary[0], binary, length);
  83
  84    for (int i = 0; i < n; ++i) {
  85       struct gl_shader *sh = shaders[i];
  86
  87       spirv_data = rzalloc(NULL, struct gl_shader_spirv_data);
  88       _mesa_shader_spirv_data_reference(&sh->spirv_data, spirv_data);
  89       _mesa_spirv_module_reference(&spirv_data->SpirVModule, module);
  90
  91       sh->CompileStatus = compile_failure;
  92
  93       free((void *)sh->Source);
  94       sh->Source = NULL;
  95       free((void *)sh->FallbackSource);
  96       sh->FallbackSource = NULL;
  97
  98       ralloc_free(sh->ir);
  99       sh->ir = NULL;
 100       ralloc_free(sh->symbols);
 101       sh->symbols = NULL;
 102    }
 103 }
 104
 105 void GLAPIENTRY
 106 _mesa_SpecializeShaderARB(GLuint shader,
 107                           const GLchar *pEntryPoint,
 108                           GLuint numSpecializationConstants,
 109                           const GLuint *pConstantIndex,
 110                           const GLuint *pConstantValue)
 111 {
 112    GET_CURRENT_CONTEXT(ctx);
 113
 114    /* Just return GL_INVALID_OPERATION error while this is boilerplate */
 115    _mesa_error(ctx, GL_INVALID_OPERATION, "SpecializeShaderARB");
 116 }