tests/spec/intel_blackhole_render/blackhole_dispatch.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 /** @file blackhole_draw.c
  25  *
  26  * Verifies that with GL_INTEL_black_render enabled, dispatch operations have no
  27  * effect.
  28  */
  29
  30 #include "piglit-util-gl.h"
  31
  32 PIGLIT_GL_TEST_CONFIG_BEGIN
  33
  34 #if defined(PIGLIT_USE_OPENGL)
  35         config.supports_gl_core_version = 42;
  36 #elif defined(PIGLIT_USE_OPENGL_ES2) || defined(PIGLIT_USE_OPENGL_ES3)
  37         config.supports_gl_es_version = 20;
  38 #endif
  39         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  40
  41 PIGLIT_GL_TEST_CONFIG_END
  42
  43 #define SIZE_X (4)
  44
  45 static const char *compute_shader =
  46         "#version 430\n"
  47         "layout (local_size_x = 1) in;"
  48         "uniform float value;"
  49         "\n"
  50         "layout (std430, binding = 0) buffer OutBuf { float output_values[]; };\n"
  51         "\n"
  52         "void main()\n"
  53         "{\n"
  54         "    uint pos = gl_GlobalInvocationID.x;\n"
  55         "    output_values[pos] = value;\n"
  56         "}\n";
  57
  58 enum piglit_result
  59 piglit_display(void)
  60 {
  61         return PIGLIT_FAIL;
  62 }
  63
  64 void
  65 piglit_init(int argc, char **argv)
  66 {
  67         GLuint data_bo = 0;
  68         GLfloat *data_buf;
  69         GLint ok = 1;
  70         GLint prog = 0;
  71         GLuint shader;
  72         const float one = 1.0f, three = 3.0f;
  73
  74         piglit_require_extension("GL_ARB_compute_shader");
  75         piglit_require_extension("GL_INTEL_blackhole_render");
  76
  77         data_buf = calloc(SIZE_X, sizeof(*data_buf));
  78         glGenBuffers(1, &data_bo);
  79         glBindBufferBase(GL_SHADER_STORAGE_BUFFER, 0, data_bo);
  80         glBufferData(GL_SHADER_STORAGE_BUFFER,
  81                      sizeof(float) * SIZE_X,
  82                      data_buf, GL_STATIC_DRAW);
  83         free(data_buf);
  84
  85         shader = glCreateShader(GL_COMPUTE_SHADER);
  86
  87         glShaderSource(shader, 1,
  88                        (const GLchar **) &compute_shader,
  89                        NULL);
  90
  91         glCompileShader(shader);
  92
  93         glGetShaderiv(shader, GL_COMPILE_STATUS, &ok);
  94         if (!ok) {
  95                 piglit_report_result(PIGLIT_SKIP);
  96                 return;
  97         }
  98
  99         prog = glCreateProgram();
 100
 101         glAttachShader(prog, shader);
 102
 103         glLinkProgram(prog);
 104
 105         glGetProgramiv(prog, GL_LINK_STATUS, &ok);
 106         if (!ok) {
 107                 piglit_report_result(PIGLIT_SKIP);
 108                 return;
 109         }
 110
 111         glUseProgram(prog);
 112
 113         if (glIsEnabled(GL_BLACKHOLE_RENDER_INTEL)) {
 114                 piglit_report_result(PIGLIT_FAIL);
 115                 return;
 116         }
 117
 118         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 119         glUniform1f(glGetUniformLocation(prog, "value"), 1.0f);
 120         glDispatchCompute(SIZE_X, 1, 1);
 121         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 122
 123         if (!piglit_probe_buffer(data_bo, GL_SHADER_STORAGE_BUFFER, "output_values",
 124                                  SIZE_X, 1, &one)) {
 125                 piglit_report_result(PIGLIT_FAIL);
 126                 return;
 127         }
 128
 129         glEnable(GL_BLACKHOLE_RENDER_INTEL);
 130         if (!glIsEnabled(GL_BLACKHOLE_RENDER_INTEL)) {
 131                 piglit_report_result(PIGLIT_FAIL);
 132                 return;
 133         }
 134
 135         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 136         glUniform1f(glGetUniformLocation(prog, "value"), 2.0f);
 137         glDispatchCompute(SIZE_X, 1, 1);
 138         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 139
 140         glDisable(GL_BLACKHOLE_RENDER_INTEL);
 141
 142         if (!piglit_probe_buffer(data_bo, GL_SHADER_STORAGE_BUFFER, "output_values",
 143                                  SIZE_X, 1, &one)) {
 144                 piglit_report_result(PIGLIT_FAIL);
 145                 return;
 146         }
 147
 148         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 149         glUniform1f(glGetUniformLocation(prog, "value"), 3.0f);
 150         glDispatchCompute(SIZE_X, 1, 1);
 151         glMemoryBarrier(GL_ALL_BARRIER_BITS);
 152
 153         if (!piglit_probe_buffer(data_bo, GL_SHADER_STORAGE_BUFFER, "output_values",
 154                                  SIZE_X, 1, &three)) {
 155                 piglit_report_result(PIGLIT_FAIL);
 156                 return;
 157         }
 158
 159         piglit_report_result(PIGLIT_PASS);
 160 }