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      1 /*
      2  * Copyright  2011 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
     21  * DEALINGS IN THE SOFTWARE.
     22  */
     23 
     24 /* This file declares stripped-down versions of functions that
     25  * normally exist outside of the glsl folder, so that they can be used
     26  * when running the GLSL compiler standalone (for unit testing or
     27  * compiling builtins).
     28  */
     29 
     30 #pragma once
     31 #ifndef STANDALONE_SCAFFOLDING_H
     32 #define STANDALONE_SCAFFOLDING_H
     33 
     34 #include <assert.h>
     35 #include "main/mtypes.h"
     36 #include "program/prog_statevars.h"
     37 
     38 extern "C" void
     39 _mesa_warning(struct gl_context *ctx, const char *fmtString, ... );
     40 
     41 extern "C" void
     42 _mesa_reference_shader_program_data(struct gl_context *ctx,
     43                                     struct gl_shader_program_data **ptr,
     44                                     struct gl_shader_program_data *data);
     45 
     46 extern "C" void
     47 _mesa_reference_shader(struct gl_context *ctx, struct gl_shader **ptr,
     48                        struct gl_shader *sh);
     49 
     50 extern "C" void
     51 _mesa_reference_program_(struct gl_context *ctx, struct gl_program **ptr,
     52                          struct gl_program *prog);
     53 
     54 extern "C" struct gl_shader *
     55 _mesa_new_shader(GLuint name, gl_shader_stage stage);
     56 
     57 extern "C" void
     58 _mesa_delete_shader(struct gl_context *ctx, struct gl_shader *sh);
     59 
     60 extern "C" void
     61 _mesa_delete_linked_shader(struct gl_context *ctx,
     62                            struct gl_linked_shader *sh);
     63 
     64 extern "C" void
     65 _mesa_clear_shader_program_data(struct gl_context *ctx,
     66                                 struct gl_shader_program *);
     67 
     68 extern "C" void
     69 _mesa_shader_debug(struct gl_context *ctx, GLenum type, GLuint *id,
     70                    const char *msg);
     71 
     72 extern "C" GLbitfield
     73 _mesa_program_state_flags(const gl_state_index state[STATE_LENGTH]);
     74 
     75 
     76 extern "C" char *
     77 _mesa_program_state_string(const gl_state_index state[STATE_LENGTH]);
     78 
     79 static inline gl_shader_stage
     80 _mesa_shader_enum_to_shader_stage(GLenum v)
     81 {
     82    switch (v) {
     83    case GL_VERTEX_SHADER:
     84       return MESA_SHADER_VERTEX;
     85    case GL_FRAGMENT_SHADER:
     86       return MESA_SHADER_FRAGMENT;
     87    case GL_GEOMETRY_SHADER:
     88       return MESA_SHADER_GEOMETRY;
     89    case GL_TESS_CONTROL_SHADER:
     90       return MESA_SHADER_TESS_CTRL;
     91    case GL_TESS_EVALUATION_SHADER:
     92       return MESA_SHADER_TESS_EVAL;
     93    case GL_COMPUTE_SHADER:
     94       return MESA_SHADER_COMPUTE;
     95    default:
     96       assert(!"bad value in _mesa_shader_enum_to_shader_stage()");
     97       return MESA_SHADER_VERTEX;
     98    }
     99 }
    100 
    101 /**
    102  * Initialize the given gl_context structure to a reasonable set of
    103  * defaults representing the minimum capabilities required by the
    104  * OpenGL spec.
    105  *
    106  * This is used when compiling builtin functions and in testing, when
    107  * we don't have a connection to an actual driver.
    108  */
    109 void initialize_context_to_defaults(struct gl_context *ctx, gl_api api);
    110 
    111 
    112 #endif /* STANDALONE_SCAFFOLDING_H */
    113