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-gl.h"
  34
  35 PIGLIT_GL_TEST_CONFIG_BEGIN
  36
  37         config.supports_gl_compat_version = 10;
  38
  39         config.window_visual = PIGLIT_GL_VISUAL_RGB;
  40
  41 PIGLIT_GL_TEST_CONFIG_END
  42
  43 static const GLchar *vertShaderText =
  44         "attribute vec4 attrib;\n"
  45         "void main()\n"
  46         "{\n"
  47         "       gl_Position = gl_ModelViewProjectionMatrix * attrib;\n"
  48         "} \n";
  49
  50
  51 enum piglit_result
  52 piglit_display(void)
  53 {
  54         GLboolean pass = GL_TRUE;
  55         GLint vs;
  56         GLint prog;
  57         GLint stat;
  58         GLint attrib_loc;
  59         GLint attrib_loc_in_dlist;
  60
  61
  62         vs = glCreateShader(GL_VERTEX_SHADER);
  63         glShaderSource(vs, 1, &vertShaderText, NULL);
  64
  65         glCompileShader(vs);
  66         glGetShaderiv(vs, GL_COMPILE_STATUS, &stat);
  67         if (!stat) {
  68                 printf("error compiling vertex shader1!\n");
  69                 exit(1);
  70         }
  71
  72         prog = glCreateProgram();
  73         glAttachShader(prog, vs);
  74         glBindAttribLocation(prog, 1, "attrib");
  75         glLinkProgram(prog);
  76
  77         attrib_loc = glGetAttribLocation(prog, "attrib");
  78         if (!piglit_automatic)
  79                 printf("attrib_loc = %d\n", attrib_loc);
  80
  81         glNewList(1, GL_COMPILE);
  82
  83         /* Notice the trickery here!  glBindAttribLocation does not take effect
  84          * until glLinkProgram is called!
  85          */
  86         glBindAttribLocation(prog, 2, "attrib");
  87         attrib_loc_in_dlist = glGetAttribLocation(prog, "attrib");
  88
  89         if (!piglit_automatic)
  90                 printf("attrib_loc_in_dlist = %d\n", attrib_loc_in_dlist);
  91         glEndList();
  92
  93         pass = (attrib_loc == 1) && (attrib_loc == attrib_loc_in_dlist);
  94         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
  95 }
  96
  97
  98 void
  99 piglit_init(int argc, char **argv)
 100 {
 101         piglit_require_gl_version(20);
 102
 103         piglit_ortho_projection(piglit_width, piglit_height, GL_FALSE);
 104 }