tests/spec/arb_pipeline_statistics_query/pipeline_stats_vert_adj.c

   1 /*
   2  * Copyright © 2014 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
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   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 pipeline_stats_vert_adj.c
  25  *
  26  * This test verifies that the vertex shader related tokens of
  27  * ARB_pipeline_statistics_query() work as expected. Much of this was derived
  28  * from ignore-adjacent-vertices.c
  29  *
  30  * 10.11
  31  *  In case of primitive types with adjacency information (see sections 10.1.11
  32  *  through 10.1.14) only the vertices belonging to the main primitive are
  33  *  counted but not the adjacent vertices. In case of line loop primitives
  34  *  implementations are allowed to count the first vertex twice for the
  35  *  purposes of VERTICES_SUBMITTED_ARB queries. Additionally, vertices
  36  *  corresponding to incomplete primitives may or may not be counted.
  37  *
  38  * I read this as: the only definite thing we can test across implementation is
  39  * discarding adjacent vertices.
  40  */
  41
  42 #include "piglit-util-gl.h"
  43 #include "pipestat_help.h"
  44
  45 PIGLIT_GL_TEST_CONFIG_BEGIN
  46 /* I believe the adjacency tokens require 3.2 GS */
  47         config.supports_gl_compat_version = 32;
  48         config.supports_gl_core_version = 32;
  49         config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
  50 PIGLIT_GL_TEST_CONFIG_END
  51
  52 static const char *vs_src =
  53         "#version 130                   \n"
  54         "                               \n"
  55         "in vec4 piglit_vertex;         \n"
  56         "void main()                    \n"
  57         "{                              \n"
  58         "   gl_Position = piglit_vertex;\n"
  59         "}                              \n";
  60
  61 static const char *fs_src =
  62         "#version 110                   \n"
  63         "                               \n"
  64         "void main()                    \n"
  65         "{                              \n"
  66         "   gl_FragColor = vec4(0, 1, 0, 1); \n"
  67         "}                              \n";
  68
  69 static struct query queries[] = {
  70         {
  71          .query = GL_PRIMITIVES_SUBMITTED_ARB,
  72          .min = 1}, /* Going to emit a line */
  73         {
  74          .query = GL_VERTICES_SUBMITTED_ARB,
  75          .min = 2,
  76          .max = 4}, /*(26) Should VERTICES_SUBMITTED_ARB count adjacent
  77                            vertices in case of primitives with adjacency? */
  78         {
  79          .query = GL_VERTEX_SHADER_INVOCATIONS_ARB,
  80          .min = 2,
  81          .max = 4}
  82 };
  83
  84 static void
  85 draw(void)
  86 {
  87         /* 4 components, 2 verts for a line, and 1 vert for adjacency per vertex
  88          * that makes up the line. The values really don't matter for this.
  89          */
  90         static const float vertex_data[] = {
  91                 0.0f, 0.0f, 0.0f, 1.0f, /* Adjacent vert */
  92                 0.2f, 0.5f, 0.0f, 1.0f, /* Vert 0 */
  93                 0.8f, 0.5f, 0.0f, 1.0f, /* Vert 1 */
  94                 1.0f, 0.0f, 0.0f, 1.0f /* Adjacent vert */
  95         };
  96
  97         glBufferData(GL_ARRAY_BUFFER, sizeof(vertex_data), vertex_data, GL_STREAM_DRAW);
  98         glDrawArrays(GL_LINES_ADJACENCY, 0, 4);
  99 #ifdef DISPLAY
 100         piglit_present_results();
 101 #endif
 102 }
 103
 104 enum piglit_result
 105 piglit_display(void)
 106 {
 107         return do_query_func(queries, ARRAY_SIZE(queries), draw);
 108 }
 109
 110 void
 111 piglit_init(int argc, char *argv[])
 112 {
 113         GLuint prog, array, buf;
 114
 115         glGenVertexArrays(1, &array);
 116         glBindVertexArray(array);
 117         glGenBuffers(1, &buf);
 118         glBindBuffer(GL_ARRAY_BUFFER, buf);
 119
 120         prog = piglit_build_simple_program(vs_src, fs_src);
 121
 122         glVertexAttribPointer(0, /* index */
 123                               4, /* size */
 124                               GL_FLOAT, /* type */
 125                               GL_FALSE, /* normalized */
 126                               0, /* stride */
 127                               NULL /* pointer */);
 128         glEnableVertexAttribArray(0);
 129
 130 #ifndef DISPLAY
 131         glEnable(GL_RASTERIZER_DISCARD);
 132 #endif
 133
 134         do_query_init(queries, ARRAY_SIZE(queries));
 135
 136         if (!piglit_link_check_status(prog)) {
 137                 glDeleteProgram(prog);
 138                 piglit_report_result(PIGLIT_FAIL);
 139         }
 140
 141         glUseProgram(prog);
 142 }