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/*
* Copyright © 2012 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 getuniformindices.c
*
* Tests the glGetUniformIndices API: not writing on error conditions,
* invalid uniform names, and consecutive indices starting from 0.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_width = 100;
config.window_height = 100;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_ALPHA;
PIGLIT_GL_TEST_CONFIG_END
static GLuint prog;
static const char frag_shader_text[] =
"#extension GL_ARB_uniform_buffer_object : require\n"
"\n"
"uniform ub_a { vec4 a; vec4 b; };\n"
"uniform vec4 c;\n"
"\n"
"void main()\n"
"{\n"
" gl_FragColor = a + b + c;\n"
"}\n";
void
piglit_init(int argc, char **argv)
{
bool pass = true;
GLuint fs;
GLuint save_index = 0xaaaaaaaa;
const GLchar *one_uniform = "a";
const GLchar *bad_uniform = "d";
const GLchar *uniform_names[] = {"a", "b", "c"};
bool found_index[3] = {false, false, false};
GLuint indices[3], index;
int i;
piglit_require_extension("GL_ARB_uniform_buffer_object");
fs = piglit_compile_shader_text(GL_FRAGMENT_SHADER, frag_shader_text);
if (!fs) {
printf("Failed to compile FS:\n%s", frag_shader_text);
piglit_report_result(PIGLIT_FAIL);
}
prog = piglit_link_simple_program(0, fs);
if (!prog)
piglit_report_result(PIGLIT_FAIL);
/* From the GL_ARB_uniform_buffer_object spec:
*
* "The error INVALID_VALUE is generated by GetUniformIndices,
* GetActiveUniformsiv, GetActiveUniformName, GetUniformBlockIndex,
* GetActiveUniformBlockiv, GetActiveUniformBlockName, and
* UniformBlockBinding if <program> is not a value generated by GL.
*
* ...
*
* The error INVALID_VALUE is generated by GetUniformIndices and
* GetActiveUniformsiv if <uniformCount> is less than zero.
*
* ...
*
* "If an error occurs, nothing is written to <uniformIndices>."
*/
index = save_index;
glGetUniformIndices(prog, -1, &one_uniform, &index);
if (!piglit_check_gl_error(GL_INVALID_VALUE)) {
pass = false;
} else if (index != save_index) {
printf("Bad program uniform index: 0x%08x\n", index);
printf(" Expected 0x%08x\n", save_index);
pass = false;
}
index = save_index;
glGetUniformIndices(0xd0d0, 1, &one_uniform, &index);
if (!piglit_check_gl_error(GL_INVALID_VALUE)) {
pass = false;
} else if (index != save_index) {
printf("Bad program uniform index: 0x%08x\n", index);
printf(" Expected 0x%08x\n", save_index);
pass = false;
}
glGetUniformIndices(prog, 3, uniform_names, indices);
if (!piglit_check_gl_error(0))
piglit_report_result(PIGLIT_FAIL);
for (i = 0; i < 3; i++) {
printf("%s: index %d\n", uniform_names[i], indices[i]);
if (indices[i] > 2 || found_index[indices[i]]) {
printf("Expected consecutive numbers starting from 0\n");
pass = false;
}
found_index[indices[i]] = true;
}
/* "If a string in <uniformNames> is not the name of an
* active uniform, the value INVALID_INDEX will be
* written to the corresponding element of
* <uniformIndices>."
*/
glGetUniformIndices(prog, 1, &bad_uniform, &index);
if (!piglit_check_gl_error(0)) {
pass = false;
} else if (index != GL_INVALID_INDEX) {
printf("Bad uniform index for %s: 0x%08x\n", bad_uniform, index);
printf(" Expected 0x%08x\n", GL_INVALID_INDEX);
pass = false;
}
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result piglit_display(void)
{
/* UNREACHED */
return PIGLIT_FAIL;
}
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