tests/shaders/glsl-dlist-getattriblocation.c

   1 /*
   2  * Copyright © 2009 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 /**
  25  * \file glsl-dlist-getattriblocation.c
  26  *
  27  * Validate the behavior of \c glGetAttribLocation while compiling a display
  28  * list.  See also bugzilla #15202.
  29  *
  30  * \author Ian Romanick <ian.d.romanick@intel.com>
  31  */
  32
  33 #include "piglit-util.h"
  34 #include "piglit-framework.h"
  35
  36 int piglit_window_mode = GLUT_RGB;
  37 int piglit_width = 100;
  38 int piglit_height = 100;
  39
  40 static const GLchar *vertShaderText =
  41         "attribute vec4 attrib;\n"
  42         "void main()\n"
  43         "{\n"
  44         "       gl_Position = gl_ModelViewProjectionMatrix * attrib;\n"
  45         "} \n";
  46
  47
  48 enum piglit_result
  49 piglit_display(void)
  50 {
  51         GLboolean pass = GL_TRUE;
  52         GLint vs;
  53         GLint prog;
  54         GLint stat;
  55         GLint attrib_loc;
  56         GLint attrib_loc_in_dlist;
  57
  58
  59         vs = glCreateShader(GL_VERTEX_SHADER);
  60         glShaderSource(vs, 1, &vertShaderText, NULL);
  61
  62         glCompileShader(vs);
  63         glGetShaderiv(vs, GL_COMPILE_STATUS, &stat);
  64         if (!stat) {
  65                 printf("error compiling vertex shader1!\n");
  66                 exit(1);
  67         }
  68
  69         prog = glCreateProgram();
  70         glAttachShader(prog, vs);
  71         glBindAttribLocation(prog, 1, "attrib");
  72         glLinkProgram(prog);
  73
  74         attrib_loc = glGetAttribLocation(prog, "attrib");
  75         if (!piglit_automatic)
  76                 printf("attrib_loc = %d\n", attrib_loc);
  77
  78         glNewList(1, GL_COMPILE);
  79
  80         /* Notice the trickery here!  glBindAttribLocation does not take effect
  81          * until glLinkProgram is called!
  82          */
  83         glBindAttribLocation(prog, 2, "attrib");
  84         attrib_loc_in_dlist = glGetAttribLocation(prog, "attrib");
  85
  86         if (!piglit_automatic)
  87                 printf("attrib_loc_in_dlist = %d\n", attrib_loc_in_dlist);
  88         glEndList();
  89
  90         pass = (attrib_loc == 1) && (attrib_loc == attrib_loc_in_dlist);
  91         return pass ? PIGLIT_SUCCESS : PIGLIT_FAILURE;
  92 }
  93
  94
  95 void
  96 piglit_init(int argc, char **argv)
  97 {
  98         if (!GLEW_VERSION_2_0) {
  99                 printf("Requires OpenGL 2.0\n");
 100                 piglit_report_result(PIGLIT_SKIP);
 101                 exit(1);
 102         }
 103
 104         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 105 }