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 #include "errors.h"
  26 #include "util/u_atomic.h"
  27
  28 void
  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
  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
  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
 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 }