tests/spec/arb_shader_objects/clear-with-deleted.c

   1 /* Copyright © 2011 Intel Corporation
   2  *
   3  * Permission is hereby granted, free of charge, to any person obtaining a
   4  * copy of this software and associated documentation files (the "Software"),
   5  * to deal in the Software without restriction, including without limitation
   6  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   7  * and/or sell copies of the Software, and to permit persons to whom the
   8  * Software is furnished to do so, subject to the following conditions:
   9  *
  10  * The above copyright notice and this permission notice (including the next
  11  * paragraph) shall be included in all copies or substantial portions of the
  12  * Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  19  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  20  * IN THE SOFTWARE.
  21  */
  22
  23 #include "piglit-util-gl.h"
  24
  25 /**
  26  * @file clear-with-deleted.c
  27  *
  28  * Tests that refcounting of deleted shader objects is correct across
  29  * glClear().  This is similar to shaders/useprogram-refcount-1, but
  30  * uses glClear() instead of glDrawPixels() and is a bit more thorough
  31  * (makes sure it isn't deleted late, in addition to not being deleted
  32  * early).
  33  */
  34
  35 PIGLIT_GL_TEST_CONFIG_BEGIN
  36
  37         config.supports_gl_compat_version = 10;
  38
  39         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  40
  41         config.khr_no_error_support = PIGLIT_NO_ERRORS;
  42
  43 PIGLIT_GL_TEST_CONFIG_END
  44
  45 static const char *vs_source =
  46         "void main()\n"
  47         "{"
  48         "       gl_Position = gl_Vertex;\n"
  49         "}\n";
  50
  51 static const char *fs_source =
  52         "void main()\n"
  53         "{"
  54         "       gl_FragColor = vec4(0.0, 1.0, 0.0, 0.0);\n"
  55         "}\n";
  56
  57 enum piglit_result
  58 piglit_display(void)
  59 {
  60         bool pass = true;
  61         GLuint prog;
  62         float green[] = {0.0, 1.0, 0.0, 0.0};
  63         GLint status;
  64
  65         /* Initial buffer clear. */
  66         glClearColor(1.0, 0.0, 0.0, 0.0);
  67         glClear(GL_COLOR_BUFFER_BIT);
  68
  69         prog = piglit_build_simple_program(vs_source, fs_source);
  70
  71         glUseProgram(prog);
  72         glDeleteProgram(prog);
  73
  74         /* Since the program is in use, it should be flagged for
  75          * deletion but not deleted.
  76          */
  77         glGetProgramiv(prog, GL_DELETE_STATUS, &status);
  78         if (!piglit_check_gl_error(0))
  79                 piglit_report_result(PIGLIT_FAIL);
  80         if (status != GL_TRUE) {
  81                 fprintf(stderr,
  82                         "GL_DELETE_STATUS when deleted reported non-true %d\n",
  83                         status);
  84                 pass = false;
  85         }
  86
  87         /* Sanity check: deleting didn't already unbind our shader program. */
  88         piglit_draw_rect(-1, -1, 2, 2);
  89         pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
  90                                       green) && pass;
  91
  92         glClearColor(1.0, 0.0, 0.0, 0.0);
  93         glClear(GL_COLOR_BUFFER_BIT);
  94
  95         /* The main test: Can we still draw after a clear with a
  96          * delete program?
  97          */
  98         piglit_draw_rect(-1, -1, 2, 2);
  99         pass = piglit_probe_rect_rgba(0, 0, piglit_width, piglit_height,
 100                                       green) && pass;
 101
 102         /* The program should still report being deleted. */
 103         glGetProgramiv(prog, GL_DELETE_STATUS, &status);
 104         if (!piglit_check_gl_error(0))
 105                 piglit_report_result(PIGLIT_FAIL);
 106         if (status != GL_TRUE) {
 107                 fprintf(stderr,
 108                         "GL_DELETE_STATUS after a clear reported non-true %d\n",
 109                         status);
 110                 pass = false;
 111         }
 112
 113         /* Now, disable the program and it should be finally deleted. */
 114         glUseProgram(0);
 115
 116         if (!piglit_khr_no_error) {
 117                 glGetProgramiv(prog, GL_DELETE_STATUS, &status);
 118                 pass = piglit_check_gl_error(GL_INVALID_VALUE) && pass;
 119         }
 120
 121         piglit_present_results();
 122
 123         return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 124 }
 125
 126 void
 127 piglit_init(int argc, char **argv)
 128 {
 129         piglit_require_vertex_shader();
 130         piglit_require_fragment_shader();
 131 }