src/glsl/program.h

   1 /*
   2  * Copyright (C) 1999-2008  Brian Paul   All Rights Reserved.
   3  * Copyright (C) 2009  VMware, Inc.  All Rights Reserved.
   4  * Copyright © 2010 Intel Corporation
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included
  14  * in all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  17  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
  20  * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
  21  * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  22  */
  23
  24 #include <GL/gl.h>
  25 #include "main/mtypes.h"
  26
  27 extern "C" {
  28 #include "shader/prog_parameter.h"
  29 #include "shader/prog_uniform.h"
  30 }
  31
  32 /**
  33  * Based on gl_shader in Mesa's mtypes.h.
  34  */
  35 struct glsl_shader {
  36    GLenum Type;
  37    GLuint Name;
  38    GLint RefCount;
  39    GLboolean DeletePending;
  40    GLboolean CompileStatus;
  41    const GLchar *Source;  /**< Source code string */
  42    size_t SourceLen;
  43    GLchar *InfoLog;
  44
  45    struct exec_list ir;
  46    struct glsl_symbol_table *symbols;
  47    struct gl_shader *mesa_shader;
  48 };
  49
  50 /**
  51  * Based on gl_shader_program in Mesa's mtypes.h.
  52  */
  53 struct glsl_program {
  54    GLenum Type;  /**< Always GL_SHADER_PROGRAM (internal token) */
  55    GLuint Name;  /**< aka handle or ID */
  56    GLint RefCount;  /**< Reference count */
  57    GLboolean DeletePending;
  58
  59    GLuint NumShaders;          /**< number of attached shaders */
  60    struct glsl_shader **Shaders; /**< List of attached the shaders */
  61
  62    /**
  63     * Per-stage shaders resulting from the first stage of linking.
  64     */
  65    /*@{*/
  66    unsigned _NumLinkedShaders;
  67    struct glsl_shader **_LinkedShaders;
  68    /*@}*/
  69
  70    /** User-defined attribute bindings (glBindAttribLocation) */
  71    struct gl_program_parameter_list *Attributes;
  72
  73    /* post-link info: */
  74    struct gl_uniform_list *Uniforms;
  75    struct gl_program_parameter_list *Varying;
  76    GLboolean LinkStatus;   /**< GL_LINK_STATUS */
  77    GLboolean Validated;
  78    GLboolean _Used;        /**< Ever used for drawing? */
  79    GLchar *InfoLog;
  80 };
  81
  82 extern void
  83 link_shaders(struct glsl_program *prog);