tests/spec/arb_direct_state_access/bind-texture-unit.c

   1 /*
   2  * Copyright 2014 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 /** @file bind-texture-unit.c
  25  *
  26  * Tests glBindTextureUnit to see if it behaves in the expected way,
  27  * throwing the correct errors, etc.
  28  */
  29
  30 #include "piglit-util-gl.h"
  31 #include "dsa-utils.h"
  32
  33 PIGLIT_GL_TEST_CONFIG_BEGIN
  34
  35         config.supports_gl_core_version = 31;
  36         config.supports_gl_compat_version = 20;
  37
  38         config.window_visual = PIGLIT_GL_VISUAL_RGBA |
  39                 PIGLIT_GL_VISUAL_DOUBLE;
  40         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  41
  42 PIGLIT_GL_TEST_CONFIG_END
  43
  44 void
  45 piglit_init(int argc, char **argv)
  46 {
  47         piglit_require_extension("GL_ARB_direct_state_access");
  48 }
  49
  50 enum piglit_result
  51 piglit_display(void)
  52 {
  53         bool pass = true;
  54         GLuint name = 3;
  55         GLint nunits;
  56
  57         if (piglit_khr_no_error) {
  58                 glGenTextures(1, &name);
  59                 glCreateTextures(GL_TEXTURE_2D, 1, &name);
  60                 goto valid_call;
  61         }
  62
  63         /* Throw some invalid inputs at BindTextureUnit. */
  64
  65
  66         /* Section 8.1. of the OpenGL 4.5 Core Profile spec says:
  67          *
  68          *     "An INVALID_OPERATION error is generated by BindTextureUnit if
  69          *     texture is not zero or the name of an existing texture object."
  70          */
  71
  72         /* Texture name doesn't exist */
  73         glBindTextureUnit(0, name);
  74         pass = piglit_check_gl_error(GL_INVALID_OPERATION) && pass;
  75
  76         /* Texture name exists, but texture object does not */
  77         glGenTextures(1, &name);
  78         glBindTextureUnit(0, name);
  79         pass = piglit_check_gl_error(GL_INVALID_OPERATION) && pass;
  80
  81         /* Section 8.1. of the OpenGL 4.5 Core Profile spec says for
  82          * BindTextures:
  83          *
  84          *     "An INVALID_OPERATION error is generated if first + count is
  85          *     greater than the number of texture image units supported by the
  86          *     implementation."
  87          *
  88          * However, it doesn't say the same about BindTextureUnit. Table 2.3
  89          * implies that a numeric argument out of range yields INVALID_VALUE,
  90          * not INVALID_OPERATION.
  91          */
  92
  93         /* Texture unit doesn't exist */
  94         glDeleteTextures(1, &name);
  95         glCreateTextures(GL_TEXTURE_2D, 1, &name);
  96         glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &nunits);
  97         glBindTextureUnit(nunits, name); /* Too High */
  98         pass = piglit_check_gl_error(GL_INVALID_VALUE) && pass;
  99
 100 valid_call:
 101         /* Trivial, but should work. */
 102         glBindTextureUnit(1, name);
 103         pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
 104
 105         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 106 }
 107