tests/spec/arb_viewport_array/minmax.c

   1 /*
   2  * Copyright © 2013 LunarG, Inc.
   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 DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  * Author: Jon Ashburn <jon@lunarg.com>
  24  */
  25
  26 /** @file minmax.c
  27  *
  28  * Test for the minimum maximum values listed in section 23 "State Tables"
  29  * (23.54) of the GL Core profile 4.3 spec relating to ARB_viewport_array.
  30  * Tested GLenums are GL_MAX_VIEWPORT_DIMS, GL_MAX_VIEWPORTS,
  31  * GL_VIEWPORT_SUBPIXEL_BITS, GL_VIEWPORT_BOUNDS_RANGE,
  32  * GL_LAYER_PROVOKING_VERTEX, GL_VIEWPORT_INDEX_PROVOKING_VERTEX.
  33  */
  34
  35 #include "piglit-util-gl.h"
  36 #include "minmax-test.h"
  37
  38 PIGLIT_GL_TEST_CONFIG_BEGIN
  39
  40         config.supports_gl_core_version = 32;
  41         config.supports_gl_compat_version = 32;
  42         config.supports_gl_es_version = 31;
  43
  44         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  45         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  46
  47 PIGLIT_GL_TEST_CONFIG_END
  48
  49 enum piglit_result
  50 piglit_display(void)
  51 {
  52         /* UNREACHED */
  53         return PIGLIT_FAIL;
  54 }
  55
  56 void
  57 piglit_init(int argc, char **argv)
  58 {
  59         GLint layer, index;
  60
  61 #ifdef PIGLIT_USE_OPENGL
  62         piglit_require_extension("GL_ARB_viewport_array");
  63 #else
  64         piglit_require_extension("GL_OES_viewport_array");
  65 #endif
  66         piglit_print_minmax_header();
  67
  68         piglit_test_min_viewport_dimensions(); /* GL_MAX_VIEWPORT_DIMS */
  69         piglit_test_min_int(GL_MAX_VIEWPORTS, 16);
  70         piglit_test_min_int(GL_VIEWPORT_SUBPIXEL_BITS, 0);
  71
  72         /* ARB_viewport_array extension spec says:
  73          *    "NOTE 2: range for viewport bounds:
  74          *    On GL3-capable hardware the VIEWPORT_BOUNDS_RANGE should be at
  75          *    least [-16384, 16383].
  76          *    On GL4-capable hardware the VIEWPORT_BOUNDS_RANGE should be at
  77          *    least [-32768, 32767]."
  78          *
  79          * OES_viewport_array requires the larger range.
  80          */
  81         /* Since no known way to determine GL3 versus GL4 capable hardware use
  82            GL version instead */
  83 #ifdef PIGLIT_USE_OPENGL
  84         if (piglit_get_gl_version() < 40)
  85                 piglit_test_range_float(GL_VIEWPORT_BOUNDS_RANGE, -16384, 16383);
  86         else
  87 #endif
  88                 piglit_test_range_float(GL_VIEWPORT_BOUNDS_RANGE, -32768, 32767);
  89
  90         /**
  91          * ARB_viewport_array extension spec says regarding PROVOKING_VERTEX:
  92          *    "NOTE 3: Valid values are: FIRST_VERTEX_CONVENTION,
  93          *    LAST_VERTEX_CONVENTION, PROVOKING_VERTEX, UNDEFINED_VERTEX."
  94          */
  95         glGetIntegerv(GL_LAYER_PROVOKING_VERTEX, &layer);
  96         piglit_minmax_pass = piglit_check_gl_error(GL_NO_ERROR)
  97                 && piglit_minmax_pass;
  98
  99         switch (layer) {
 100         case GL_FIRST_VERTEX_CONVENTION:
 101         case GL_LAST_VERTEX_CONVENTION:
 102         case GL_PROVOKING_VERTEX:
 103         case GL_UNDEFINED_VERTEX:
 104                 printf("%s                                    %s\n",
 105                        piglit_get_gl_enum_name(GL_LAYER_PROVOKING_VERTEX),
 106                        piglit_get_gl_enum_name(layer));
 107                 break;
 108         default:
 109                  piglit_minmax_pass = false;
 110                  printf("Invalid value for GL_LAYER_PROVOKING_VERTEX\n");
 111                  break;
 112         }
 113
 114         glGetIntegerv(GL_VIEWPORT_INDEX_PROVOKING_VERTEX, &index);
 115         piglit_minmax_pass = piglit_check_gl_error(GL_NO_ERROR)
 116                 && piglit_minmax_pass;
 117
 118         switch (index) {
 119         case GL_FIRST_VERTEX_CONVENTION:
 120         case GL_LAST_VERTEX_CONVENTION:
 121         case GL_PROVOKING_VERTEX:
 122         case GL_UNDEFINED_VERTEX:
 123                 printf("%s                            %s\n",
 124                        piglit_get_gl_enum_name(GL_VIEWPORT_INDEX_PROVOKING_VERTEX),
 125                        piglit_get_gl_enum_name(index));
 126                 break;
 127         default:
 128                 piglit_minmax_pass = false;
 129                 printf("Invalid value for GL_VIEWPORT_INDEX_PROVOKING_VERTEX\n");
 130                 break;
 131         }
 132
 133         piglit_report_result(piglit_minmax_pass ? PIGLIT_PASS : PIGLIT_FAIL);
 134 }