tests/spec/arb_texture_buffer_range/errors.c

   1 /*
   2  * Copyright © 2011 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 DEALINGS
  21  * IN THE SOFTWARE.
  22  */
  23
  24 #include "piglit-util-gl.h"
  25
  26 /**
  27  * @file errors.c
  28  *
  29  * Tests error conditions and queries for glTexBufferRange.
  30  */
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34         config.supports_gl_compat_version = 10;
  35         config.supports_gl_core_version = 31;
  36
  37         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  38         config.khr_no_error_support = PIGLIT_HAS_ERRORS;
  39
  40 PIGLIT_GL_TEST_CONFIG_END
  41
  42 enum piglit_result
  43 piglit_display(void)
  44 {
  45         /* UNREACHED */
  46         return PIGLIT_FAIL;
  47 }
  48
  49 /* use min of MAX_TEXTURE_BUFFER_SIZE */
  50 #define TBO_SIZE (1 << 16)
  51
  52 void
  53 piglit_init(int argc, char **argv)
  54 {
  55         GLint align, value[2];
  56         GLuint tex, bo;
  57
  58         piglit_require_gl_version(20);
  59         piglit_require_extension("GL_ARB_texture_buffer_range");
  60
  61         glGenTextures(1, &tex);
  62         glBindTexture(GL_TEXTURE_BUFFER, tex);
  63         glGenBuffers(1, &bo);
  64         glBindBuffer(GL_TEXTURE_BUFFER, bo);
  65
  66         glGetIntegerv(GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT, &align);
  67         if (align < 1) {
  68                 fprintf(stderr, "GL_TEXTURE_BUFFER_OFFSET_ALIGNMENT == %i, "
  69                         "should be >= 1\n", align);
  70                 piglit_report_result(PIGLIT_FAIL);
  71         }
  72
  73         /* From OpenGL 4.5 spec, section 8.9 Buffer Textures:
  74          *
  75          * "An INVALID_ENUM error is generated if the effective target is not
  76          *  TEXTURE_BUFFER."
  77          */
  78         glTexBufferRange(GL_TEXTURE_2D, GL_RGBA8, bo, 0, 4);
  79         if (!piglit_check_gl_error(GL_INVALID_ENUM))
  80                 piglit_report_result(PIGLIT_FAIL);
  81
  82         /* If <offset> is negative or if <size> is
  83          * less than or equal to zero or if <offset> + <size> is greater than
  84          * the value of BUFFER_SIZE for the buffer bound to <target>, of if
  85          * <offset> is not an integer multiple of
  86          * TEXTURE_BUFFER_OFFSET_ALIGNMENT, then the error INVALID_VALUE
  87          * is generated.
  88          */
  89
  90         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo, 0, 4);
  91         if (!piglit_check_gl_error(GL_INVALID_VALUE))
  92                 piglit_report_result(PIGLIT_FAIL);
  93
  94         glBufferData(GL_TEXTURE_BUFFER, TBO_SIZE, NULL, GL_STATIC_DRAW);
  95
  96         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo, -align, 4);
  97         if (!piglit_check_gl_error(GL_INVALID_VALUE))
  98                 piglit_report_result(PIGLIT_FAIL);
  99
 100         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo, 0, 0);
 101         if (!piglit_check_gl_error(GL_INVALID_VALUE))
 102                 piglit_report_result(PIGLIT_FAIL);
 103
 104         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo, 0, -16);
 105         if (!piglit_check_gl_error(GL_INVALID_VALUE))
 106                 piglit_report_result(PIGLIT_FAIL);
 107
 108         if (align > 1) {
 109                 glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo, align / 2, 16);
 110                 if (!piglit_check_gl_error(GL_INVALID_VALUE))
 111                         piglit_report_result(PIGLIT_FAIL);
 112         }
 113
 114         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, bo,
 115                          align, TBO_SIZE - align);
 116         if (!piglit_check_gl_error(GL_NO_ERROR)) {
 117                 fprintf(stderr, "glTexBufferRange failed\n");
 118                 piglit_report_result(PIGLIT_FAIL);
 119         }
 120         glGetTexLevelParameteriv(GL_TEXTURE_BUFFER, 0, GL_TEXTURE_BUFFER_OFFSET,
 121                                  &value[0]);
 122         glGetTexLevelParameteriv(GL_TEXTURE_BUFFER, 0, GL_TEXTURE_BUFFER_SIZE,
 123                                  &value[1]);
 124         if (value[0] != align || value[1] != TBO_SIZE - align) {
 125                 fprintf(stderr, "GL_TEXTURE_BUFFER_OFFSET/SIZE returned %i/%i, "
 126                         "expected %i/%i\n",
 127                         value[0], value[1], align, TBO_SIZE - align);
 128                 piglit_report_result(PIGLIT_FAIL);
 129         }
 130
 131         /* If <buffer> is zero, then any buffer object attached to the
 132          * buffer texture is detached, the values <offset> and <size> are
 133          * ignored and the state for <offset> and <size> for the
 134          * buffer texture are reset to zero.
 135          */
 136
 137         glTexBufferRange(GL_TEXTURE_BUFFER, GL_RGBA8, 0, -align, TBO_SIZE * 2);
 138         if (!piglit_check_gl_error(GL_NO_ERROR))
 139                 piglit_report_result(PIGLIT_FAIL);
 140
 141         glGetTexLevelParameteriv(GL_TEXTURE_BUFFER, 0, GL_TEXTURE_BUFFER_OFFSET,
 142                                  &value[0]);
 143         glGetTexLevelParameteriv(GL_TEXTURE_BUFFER, 0, GL_TEXTURE_BUFFER_SIZE,
 144                                  &value[1]);
 145         if (value[0] || value[1]) {
 146                 fprintf(stderr, "buffer detached but "
 147                         "GL_TEXTURE_BUFFER_OFFSET/SIZE "
 148                         "not reset to 0\n");
 149                 piglit_report_result(PIGLIT_FAIL);
 150         }
 151
 152         piglit_report_result(PIGLIT_PASS);
 153 }
 154