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/*
* Copyright (c) 2014 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
/** @file invocation-id.c
*
* Verifies reading GL_GEOMETRY_SHADER_INVOCATIONS
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 32;
config.supports_gl_core_version = 32;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
const char *vs_source = {
"#version 150\n"
"void main() {}\n"
};
const char *gs_source1 = {
"#version 150\n"
"#extension GL_ARB_gpu_shader5 : enable\n"
"layout(triangles) in;\n"
"layout(triangle_strip, max_vertices = 3) out;\n"
"\n"
"void main() {}\n"
};
const char *gs_source4 = {
"#version 150\n"
"#extension GL_ARB_gpu_shader5 : enable\n"
"layout(triangles, invocations = 4) in;\n"
"layout(triangle_strip, max_vertices = 3) out;\n"
"\n"
"void main() {}\n"
};
const char *fs_source = {
"#version 150\n"
"void main() {\n"
" gl_FragColor = vec4(0, 1, 0, 1);\n"
"}\n"
};
static bool
test_gs_invocations(const char *gs_src, GLint expected)
{
GLint program;
GLint invocations;
bool pass = true;
program = piglit_build_simple_program_multiple_shaders(
GL_VERTEX_SHADER, vs_source,
GL_GEOMETRY_SHADER, gs_src,
GL_FRAGMENT_SHADER, fs_source,
0);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
if (!pass)
return pass;
glGetProgramiv(program, GL_GEOMETRY_SHADER_INVOCATIONS, &invocations);
pass = piglit_check_gl_error(GL_NO_ERROR);
if (pass) {
pass = pass && (invocations == expected);
if (!pass) {
printf("GEOMETRY_SHADER_INVOCATIONS: "
"Expected=%d, Got=%d\n",
expected,
invocations);
}
}
glDeleteProgram(program);
return pass;
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
piglit_require_extension("GL_ARB_gpu_shader5");
pass = test_gs_invocations(gs_source1, 1) && pass;
pass = test_gs_invocations(gs_source4, 4) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
/* UNREACHABLE */
return PIGLIT_FAIL;
}
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