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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 array-elements.c
*
* Tests that array elements get sequential locations.
*
* The GL_ARB_explicit_uniform_location spec says:
* "Individual elements of a uniform array are assigned consecutive
* locations with the first element taking location <location>."
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_core_version = 33;
config.window_visual = PIGLIT_GL_VISUAL_RGB;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
static const char vs_text[] =
"vec4 vertex;\n"
"void main() {\n"
"gl_Position = vertex;\n"
"}";
static const char fs_text[] =
"#version 330\n"
"#extension GL_ARB_explicit_uniform_location: require\n"
"#define ARRAY_SIZE 16\n"
"layout(location = 1) uniform float r;\n"
"layout(location = 2) uniform float g;\n"
"layout(location = 3) uniform float a[ARRAY_SIZE];\n"
"layout(location = 19) uniform float b;\n"
"void main() {\n"
"gl_FragColor = vec4(r, g, b, a[ARRAY_SIZE - 1]);\n"
"}";
void
piglit_init(int argc, char **argv)
{
GLuint prog, i;
piglit_require_extension("GL_ARB_explicit_uniform_location");
prog = piglit_build_simple_program(vs_text, fs_text);
/* verify that locations are sequential */
for (i = 0; i < 16; i++) {
char *element;
if (asprintf(&element, "a[%d]", i) == -1)
piglit_report_result(PIGLIT_FAIL);
if (glGetUniformLocation(prog, element) != 3 + i)
piglit_report_result(PIGLIT_FAIL);
free(element);
}
glDeleteProgram(prog);
piglit_report_result(PIGLIT_PASS);
}
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