tests/spec/arb_compute_shader/compute-and-render-bug-109630.c

   1 /*
   2  * Copyright © 2020 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 /*
  25  * \file compute-and-render-bug-109630
  26  *
  27  * Test verifies that after compute workload geometry renders fine.
  28  * This exercises hardware issue in Intel's GEN9 GPU which resulted
  29  * in geometry flickering see https://bugs.freedesktop.org/show_bug.cgi?id=109630
  30  * There is no guaranteed way to reproduce the issue but to run the
  31  * core part of the test many times.
  32  *
  33  * \author Andrii Kryvytskyi <andrii.o.kryvytskyi@globallogic.com>
  34  */
  35
  36 #include "piglit-util-gl.h"
  37 PIGLIT_GL_TEST_CONFIG_BEGIN
  38
  39 config.supports_gl_core_version = 42;
  40 config.window_height = 1024;
  41 config.window_width = 1024;
  42 config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  43
  44 PIGLIT_GL_TEST_CONFIG_END
  45
  46 static const char *cs_text =
  47     "#version 420\n"
  48     "#extension GL_ARB_compute_shader: require\n"
  49     "\n"
  50     "layout(local_size_x = 1) in; \n"
  51     "\n"
  52     "void main()\n"
  53     "{\n"
  54     "}\n";
  55
  56 static const GLchar* vs_text =
  57     "#version 140\n"
  58     "\n"
  59     "in vec3 pos;\n"
  60     "uniform mat3 transform;\n"
  61     "\n"
  62     "void main()\n"
  63     "{\n"
  64     "   gl_Position = vec4(pos * transform, 1.0f);\n"
  65     "}\n";
  66
  67 static const GLchar* fs_text =
  68     "#version 140\n"
  69     "\n"
  70     "uniform vec4 color;\n"
  71     "out vec4 fragColor;\n"
  72     "\n"
  73     "void main()\n"
  74     "{\n"
  75     "   fragColor = color;\n"
  76     "}\n";
  77
  78 static GLuint cs_prog;
  79 static GLuint prog;
  80 static GLuint vao;
  81 static GLuint vbo;
  82
  83 void
  84 piglit_init(int argc, char **argv)
  85 {
  86     piglit_require_extension("GL_ARB_compute_shader");
  87
  88     cs_prog = glCreateProgram();
  89     GLint compute_shader =
  90         piglit_compile_shader_text(GL_COMPUTE_SHADER, cs_text);
  91
  92     glAttachShader(cs_prog, compute_shader);
  93     glLinkProgram(cs_prog);
  94
  95     if (!piglit_link_check_status(cs_prog))
  96         piglit_report_result(PIGLIT_FAIL);
  97
  98     const float vertices[] = {
  99         -1.0f, -1.0f,  1.0f,
 100         -1.0f,  1.0f,  1.0f,
 101          1.0f, -1.0f,  1.0f,
 102          1.0f,  1.0f,  1.0f
 103     };
 104
 105     prog = piglit_build_simple_program(vs_text, fs_text);
 106
 107     glGenVertexArrays(1, &vao);
 108     glBindVertexArray(vao);
 109     glGenBuffers(1, &vbo);
 110     glBindBuffer(GL_ARRAY_BUFFER, vbo);
 111     glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
 112
 113     glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 3 * sizeof(float), (void*)0);
 114     glEnableVertexAttribArray(0);
 115
 116     if (!piglit_check_gl_error(GL_NO_ERROR))
 117         piglit_report_result(PIGLIT_FAIL);
 118 }
 119
 120 enum piglit_result
 121 piglit_display(void) {
 122     //Transform matrix is required for reproducing flickers.
 123     const float transform_matr[] = {
 124         1.0, 0.0, 0.0,
 125         0.0, 1.0, 0.0,
 126         0.0, 0.0, 1.0
 127     };
 128
 129     bool pass = true;
 130
 131     const float expected[] = { 0.0f, 1.0f, 0.0f, 1.0f };
 132
 133     glBindBuffer(GL_ARRAY_BUFFER, vao);
 134     glBindVertexArray(vbo);
 135
 136     GLint transform_loc = glGetUniformLocation(prog, "transform");
 137     GLint color_loc = glGetUniformLocation(prog, "color");
 138
 139     for (int i = 0; i < 50; i++) {
 140         glClearColor(1.0, 0.0, 0.0, 1.0);
 141         glClear(GL_COLOR_BUFFER_BIT);
 142
 143         glUseProgram(cs_prog);
 144         glDispatchCompute(1, 1, 1);
 145
 146         glUseProgram(prog);
 147
 148         glUniformMatrix3fv(transform_loc, 1, GL_FALSE, transform_matr);
 149         glUniform4f(color_loc, 1.0f, 1.0f, 0.0f, 1.0f);
 150
 151         glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, 200);
 152
 153         glUniform4f(color_loc, 0.0f, 1.0f, 0.0f, 1.0f);
 154
 155         glDrawArraysInstanced(GL_TRIANGLE_STRIP, 0, 4, 1);
 156
 157         glFinish();
 158
 159         if (!piglit_probe_pixel_rgba(0, 0, expected)) {
 160             printf("Failed on iteration #%d \n", i);
 161             pass = false;
 162             break;
 163         }
 164     }
 165
 166     glBindBuffer(GL_ARRAY_BUFFER, 0);
 167     glBindVertexArray(0);
 168
 169     piglit_present_results();
 170
 171     return pass ? PIGLIT_PASS : PIGLIT_FAIL;
 172 }