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/*
* Copyright © 2017 Timothy Arceri
*
* 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 active-sampler-conflict.c
*
* Verify results of program validation when a conflicting sampler
* configuration is used via the binding layout qualifier.
*
* Section 11.1.3.11 (Validation) of the OpenGL 4.5 spec says:
*
* "An INVALID_OPERATION error is generated by any command that trans-
* fers vertices to the GL or launches compute work if the current set of
* active program objects cannot be executed, for reasons including:
*
* - any two active samplers in the current program object are
* of different types, but refer to the same texture image
* unit,"
*
* Here we test the INVALID_OPERATION by both calling glValidateProgram
* and glDrawArrays.
*/
#include "piglit-util-gl.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_core_version = 31;
config.khr_no_error_support = PIGLIT_HAS_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
static const char *vs_code_binding_0 =
"#version 140\n"
"#extension GL_ARB_shading_language_420pack: require\n"
"layout(binding = 0) uniform samplerBuffer buffer;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = texelFetch(buffer, 0);\n"
"}\n"
;
static const char *vs_code_binding_1 =
"#version 140\n"
"#extension GL_ARB_shading_language_420pack: require\n"
"layout(binding = 1) uniform samplerBuffer buffer;\n"
"\n"
"void main()\n"
"{\n"
" gl_Position = texelFetch(buffer, 0);\n"
"}\n"
;
static const char *fs_code_binding_0 =
"#version 140\n"
"#extension GL_ARB_shading_language_420pack: require\n"
"layout(binding = 0) uniform samplerCube cubemapTex;\n"
"\n"
"void main()\n"
"{\n"
" gl_FragColor = textureCube(cubemapTex, vec3(gl_FragCoord.xyz));\n"
"}\n"
;
static bool
program_check_status(GLuint prog)
{
GLchar *info = NULL;
GLint size;
GLint ok;
glValidateProgram(prog);
glGetProgramiv(prog, GL_VALIDATE_STATUS, &ok);
/* Some drivers return a size of 1 for an empty log. This is the size
* of a log that contains only a terminating NUL character.
*/
glGetProgramiv(prog, GL_INFO_LOG_LENGTH, &size);
if (size > 1) {
info = malloc(size);
glGetProgramInfoLog(prog, size, NULL, info);
}
if (!ok) {
printf("Failed to validate the program: %s\n",
(info != NULL) ? info : "<empty log>");
}
else if (0 && info != NULL) {
/* Enable this to get extra linking info.
* Even if there's no link errors, the info log may
* have some remarks.
*/
printf("Program validation warning: %s\n", info);
}
free(info);
return ok;
}
void piglit_init(int argc, char **argv)
{
GLuint prog;
bool pass = true;
piglit_require_extension("GL_ARB_shading_language_420pack");
GLuint vao;
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
/* First, try an invalid combination */
prog = piglit_build_simple_program(vs_code_binding_0,
fs_code_binding_0);
glUseProgram(prog);
if (program_check_status(prog)) {
fprintf(stderr,
"Program was validated with conflicting "
"sampler configuration.\n");
pass = false;
}
glDrawArrays(GL_TRIANGLE_STRIP, 0, 3);
pass = piglit_check_gl_error(GL_INVALID_OPERATION) && pass;
/* Re-validate the invalid program. */
if (program_check_status(prog)) {
fprintf(stderr,
"Program was validated with conflicting "
"sampler configuration (second attempt).\n");
pass = false;
}
/* Clean up. */
glUseProgram(0);
glDeleteProgram(prog);
/* Now try a valid combination. */
prog = piglit_build_simple_program(vs_code_binding_1,
fs_code_binding_0);
glUseProgram(prog);
if (!program_check_status(prog)) {
fprintf(stderr,
"Program was not validated with non-conflicting "
"sampler configuration.\n");
pass = false;
}
glDrawArrays(GL_TRIANGLE_STRIP, 0, 3);
pass = piglit_check_gl_error(GL_NO_ERROR) && pass;
/* Re-validate the valid program. */
if (!program_check_status(prog)) {
fprintf(stderr,
"Program was not validated with non-conflicting "
"sampler configuration (second attempt).\n");
pass = false;
}
/* Clean up. */
glUseProgram(0);
glDeleteProgram(prog);
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
enum piglit_result
piglit_display(void)
{
/* Not reached */
return PIGLIT_FAIL;
}
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