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/*
* Copyright © 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 get-tcs-params.c
*
* Test tessellation control shader layout getters.
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 32;
config.supports_gl_core_version = 32;
PIGLIT_GL_TEST_CONFIG_END
unsigned int prog;
static const char *const vs_source =
"#version 150\n"
"void main() { gl_Position = vec4(0.0); }\n";
static const char *const tcs_source_template =
"#version 150\n"
"#extension GL_ARB_tessellation_shader: require\n"
"layout(vertices = %d) out;\n"
"void main() {\n"
" gl_out[gl_InvocationID].gl_Position = vec4(0.0);\n"
" gl_TessLevelOuter = float[4](1.0, 1.0, 1.0, 1.0);\n"
" gl_TessLevelInner = float[2](1.0, 1.0);\n"
"}\n";
static char *tcs_source;
static bool
test_tcs_params(const int vertices)
{
int v;
sprintf(tcs_source, tcs_source_template, vertices);
prog = piglit_build_simple_program_multiple_shaders(
GL_VERTEX_SHADER, vs_source,
GL_TESS_CONTROL_SHADER, tcs_source,
0);
glGetProgramiv(prog, GL_TESS_CONTROL_OUTPUT_VERTICES, &v);
if (v != vertices) {
fprintf(stderr, "GL_TESS_CONTROL_OUTPUT_VERTICES "
"is %d, expected %d for program \n%s\n",
v, vertices, tcs_source);
return false;
}
return true;
}
void
piglit_init(int argc, char **argv)
{
bool pass = true;
int i, max_vertices;
static const int vertices[] = {1, 2, 3, 4, 8, 16, 32};
piglit_require_extension("GL_ARB_tessellation_shader");
tcs_source = malloc(strlen(tcs_source_template) + 16);
for (i = 0; i < ARRAY_SIZE(vertices); ++i) {
pass = test_tcs_params(vertices[i]) && pass;
}
glGetIntegerv(GL_MAX_PATCH_VERTICES, &max_vertices);
pass = test_tcs_params(max_vertices) && pass;
free(tcs_source);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_PASS;
}
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