tests/spec/intel_blackhole_render/blackhole_draw.c

   1 /*
   2  * Copyright © 2018 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 blackhole_draw.c
  26  *
  27  * Verifies that with GL_INTEL_black_render enabled, rendering operations have
  28  * no effect.
  29  */
  30
  31 #include "piglit-util-gl.h"
  32 #include "piglit-matrix.h"
  33
  34 PIGLIT_GL_TEST_CONFIG_BEGIN
  35
  36 #if defined(PIGLIT_USE_OPENGL)
  37         config.supports_gl_core_version = 42;
  38 #elif defined(PIGLIT_USE_OPENGL_ES2) || defined(PIGLIT_USE_OPENGL_ES3)
  39         config.supports_gl_es_version = 20;
  40 #endif
  41
  42         config.window_width = 400;
  43         config.window_height = 400;
  44         config.window_visual = PIGLIT_GL_VISUAL_RGBA | PIGLIT_GL_VISUAL_DOUBLE;
  45
  46 PIGLIT_GL_TEST_CONFIG_END
  47
  48 static enum piglit_result
  49 run(void)
  50 {
  51         float delta = 1.01 / piglit_width;
  52         GLuint prog;
  53
  54         /* This atom should be disabled by default */
  55         if (glIsEnabled(GL_BLACKHOLE_RENDER_INTEL))
  56                 return PIGLIT_FAIL;
  57
  58         prog = piglit_build_simple_program(
  59 #if defined(PIGLIT_USE_OPENGL)
  60                 "#version 330\n"
  61                 "in vec4 piglit_vertex;\n"
  62 #elif defined(PIGLIT_USE_OPENGL_ES2) || defined(PIGLIT_USE_OPENGL_ES3)
  63                 "#version 100\n"
  64                 "attribute vec4 piglit_vertex;\n"
  65 #endif
  66                 "void main()\n"
  67                 "{\n"
  68                 "  gl_Position = piglit_vertex;\n"
  69                 "}\n",
  70 #if defined(PIGLIT_USE_OPENGL)
  71                 "#version 330\n"
  72 #elif defined(PIGLIT_USE_OPENGL_ES2) || defined(PIGLIT_USE_OPENGL_ES3)
  73                 "#version 100\n"
  74 #endif
  75                 "void main()\n"
  76                 "{\n"
  77                 "  gl_FragColor = vec4(1.0, 0.0, 0.0, 1.0);\n"
  78                 "}\n");
  79         if (!prog)
  80                 piglit_report_result(PIGLIT_FAIL);
  81
  82         glBindFramebuffer(GL_DRAW_FRAMEBUFFER, piglit_winsys_fbo);
  83         glViewport(0, 0, piglit_width, piglit_height);
  84
  85         glClearColor(0.0, 0.0, 0.0, 0.0);
  86
  87         glUseProgram(prog);
  88
  89         GLuint vao;
  90         glGenVertexArrays(1, &vao);
  91         glBindVertexArray(vao);
  92
  93         GLuint vbo;
  94         float vertices[3][2] = {
  95                 { -0.5, -1 + delta, },
  96                 { 0, 0.8, },
  97                 { 0.5, -1 + delta, },
  98         };
  99         glGenBuffers(1, &vbo);
 100         glBindBuffer(GL_ARRAY_BUFFER, vbo);
 101         glBufferData(GL_ARRAY_BUFFER, sizeof(vertices), vertices, GL_STATIC_DRAW);
 102         glVertexAttribPointer(0, 2, GL_FLOAT, GL_FALSE, 2 * sizeof(GLfloat), NULL);
 103         glEnableVertexAttribArray(0);
 104
 105         glDisable(GL_BLACKHOLE_RENDER_INTEL);
 106         glClear(GL_COLOR_BUFFER_BIT);
 107         glDrawArrays(GL_TRIANGLES, 0, 3);
 108
 109         if(!piglit_check_gl_error(GL_NO_ERROR))
 110                 return PIGLIT_FAIL;
 111
 112         piglit_present_results();
 113
 114         const float normal_expected[] = { 1.0, 0.0, 0.0, 1.0 };
 115         if (!piglit_probe_pixel_rgba(piglit_width / 2,
 116                                      piglit_height / 2,
 117                                      normal_expected))
 118                 return PIGLIT_FAIL;
 119
 120         glClearColor(0.0, 1.0, 0.0, 1.0);
 121         glClear(GL_COLOR_BUFFER_BIT);
 122
 123         const float blackhole_draw_expected[] = { 0.0, 1.0, 0.0, 1.0 };
 124         if (!piglit_probe_pixel_rgba(piglit_width / 2,
 125                                      piglit_height / 2,
 126                                      blackhole_draw_expected))
 127                 return PIGLIT_FAIL;
 128
 129         glEnable(GL_BLACKHOLE_RENDER_INTEL);
 130
 131         if (!glIsEnabled(GL_BLACKHOLE_RENDER_INTEL))
 132                 return PIGLIT_FAIL;
 133
 134         glDrawArrays(GL_TRIANGLES, 0, 3);
 135
 136         if(!piglit_check_gl_error(GL_NO_ERROR))
 137                 return PIGLIT_FAIL;
 138
 139         piglit_present_results();
 140
 141         glDisable(GL_BLACKHOLE_RENDER_INTEL);
 142
 143         if (!piglit_probe_pixel_rgba(piglit_width / 2,
 144                                      piglit_height / 2,
 145                                      blackhole_draw_expected))
 146                 return PIGLIT_FAIL;
 147
 148         glEnable(GL_BLACKHOLE_RENDER_INTEL);
 149
 150         glClearColor(1.0, 0.0, 0.0, 1.0);
 151
 152         if(!piglit_check_gl_error(GL_NO_ERROR))
 153                 return PIGLIT_FAIL;
 154
 155         piglit_present_results();
 156
 157         glDisable(GL_BLACKHOLE_RENDER_INTEL);
 158
 159         const float blackhole_clear_expected[] = { 0.0, 1.0, 0.0, 1.0 };
 160         if (!piglit_probe_pixel_rgba(piglit_width / 2,
 161                                      piglit_height / 2,
 162                                      blackhole_clear_expected))
 163                 return PIGLIT_FAIL;
 164
 165         glClearColor(1.0, 0.0, 0.0, 1.0);
 166         glClear(GL_COLOR_BUFFER_BIT);
 167
 168         piglit_present_results();
 169
 170         if (!piglit_probe_pixel_rgba(piglit_width / 2,
 171                                      piglit_height / 2,
 172                                      normal_expected))
 173                 return PIGLIT_FAIL;
 174
 175         return PIGLIT_PASS;
 176 }
 177
 178 enum piglit_result
 179 piglit_display(void)
 180 {
 181         enum piglit_result result = run();
 182
 183         glDisable(GL_BLACKHOLE_RENDER_INTEL);
 184
 185         return result;
 186 }
 187
 188 void piglit_init(int argc, char **argv)
 189 {
 190         piglit_require_extension("GL_INTEL_blackhole_render");
 191 }