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/*
* Copyright © 2013 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 max-counters.c
*
* Test that using more than the maximum number of suported atomic
* counters, buffers or bindings fails with a linking error.
*/
#include "common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_core_version = 31;
config.window_width = 1;
config.window_height = 1;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGBA;
config.khr_no_error_support = PIGLIT_NO_ERRORS;
PIGLIT_GL_TEST_CONFIG_END
static char *
iterate_template(const char *template, unsigned n)
{
char *ss;
int i, ret;
ss = strdup("");
assert(ss);
for (i = 0; i < n; ++i) {
char *s, *tmp = ss;
ret = asprintf(&s, template, i);
assert(ret >= 0);
ret = asprintf(&ss, "%s%s", tmp, s);
assert(ret >= 0);
free(tmp);
free(s);
}
return ss;
}
/**
* Generate source code by substituting the first occurrence of "%s"
* in \a src_template with \a n copies of \a decl_template and the
* second occurrence of "%s" with \a n copies of \a insn_template.
*/
static char *
generate_source(const char *src_template,
const char *decl_template, const char *insn_template,
unsigned n)
{
char *decls = iterate_template(decl_template, n);
char *insns = iterate_template(insn_template, n);
char *src;
int ret;
ret = asprintf(&src, src_template, decls, insns);
assert(ret);
free(decls);
free(insns);
return src;
}
static bool
run_test_vertex_max_counters(unsigned num_counters)
{
/* Generate a shader with 'num_counters' counters. */
char *vs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"%s\n"
"\n"
"in vec4 position;\n"
"flat out ivec4 vcolor;\n"
"\n"
"void main() {\n"
" uint y = 0u;\n"
" %s\n"
" vcolor.x = int(y);\n"
" gl_Position = position;\n"
"}\n",
"layout(binding=0) uniform atomic_uint x%d;\n",
" y += atomicCounterDecrement(x%d);\n",
num_counters);
GLuint prog = glCreateProgram();
bool ret = atomic_counters_compile(prog, GL_VERTEX_SHADER, vs_source) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(vs_source);
return ret;
}
static bool
run_test_fragment_max_counters(unsigned num_counters)
{
/* Generate a shader with 'num_counters' counters. */
char *fs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"%s\n"
"\n"
"out ivec4 fcolor;\n"
"\n"
"void main() {\n"
" uint y = 0u;\n"
" %s\n"
" fcolor.x = int(y);\n"
"}\n",
"layout(binding=0) uniform atomic_uint x%d;\n",
" y += atomicCounterDecrement(x%d);\n",
num_counters);
GLuint prog = glCreateProgram();
bool ret = atomic_counters_compile(prog, GL_FRAGMENT_SHADER, fs_source) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(fs_source);
return ret;
}
static bool
run_test_combined_max_counters(unsigned num_fragment_counters,
unsigned num_vertex_counters)
{
/* Generate a shader with 'num_fragment_counters' counters. */
char *fs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"%s\n"
"\n"
"flat in ivec4 vcolor;\n"
"out ivec4 fcolor;\n"
"\n"
"void main() {\n"
" uint y = uint(vcolor.x);\n"
" %s\n"
" fcolor.x = int(y);\n"
"}\n",
"layout(binding=0) uniform atomic_uint fx%d;\n",
" y += atomicCounterDecrement(fx%d);\n",
num_fragment_counters);
/* Generate a shader with 'num_vertex_counters' counters. */
char *vs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"%s\n"
"\n"
"in vec4 position;\n"
"flat out ivec4 vcolor;\n"
"\n"
"void main() {\n"
" uint y = 0u;\n"
" %s\n"
" vcolor.x = int(y);\n"
" gl_Position = position;\n"
"}\n",
"layout(binding=1) uniform atomic_uint vx%d;\n",
" y += atomicCounterDecrement(vx%d);\n",
num_vertex_counters);
GLuint prog = glCreateProgram();
bool ret = atomic_counters_compile(prog, GL_FRAGMENT_SHADER, fs_source) &&
atomic_counters_compile(prog, GL_VERTEX_SHADER, vs_source) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(fs_source);
free(vs_source);
return ret;
}
static bool
run_test_fragment_max_buffers(unsigned num_buffers)
{
/* Generate a shader with 'num_buffers' buffers. */
char *src = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"#define PASTE(A,B) A ## B\n"
"#define Y(I) PASTE(y, I)\n"
"\n"
"out ivec4 fcolor;\n"
"\n"
"%s"
"\n"
"void main() {\n"
" uint x = 0u;\n"
" %s\n"
" fcolor.x = int(x);\n"
"}\n",
"#define I %d\n"
"layout(binding=I, offset=0) uniform atomic_uint Y(I);\n"
"#undef I\n",
" x += atomicCounterDecrement(y%d);\n",
num_buffers);
GLuint prog = glCreateProgram();
bool ret = atomic_counters_compile(prog, GL_FRAGMENT_SHADER, src) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(src);
return ret;
}
static bool
run_test_vertex_max_buffers(unsigned num_buffers)
{
/* Generate a shader with 'num_buffers' buffers. */
char *src = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"#define PASTE(A,B) A ## B\n"
"#define X(I) PASTE(x, I)\n"
"\n"
"in vec4 position;\n"
"flat out ivec4 vcolor;\n"
"\n"
"%s"
"\n"
"void main() {\n"
" uint x = 0u;\n"
" %s\n"
" vcolor.x = int(x);\n"
" gl_Position = position;\n"
"}\n",
"#define I %d\n"
"layout(binding=I, offset=0) uniform atomic_uint X(I);\n"
"#undef I\n",
" x += atomicCounterDecrement(x%d);\n",
num_buffers);
GLuint prog = glCreateProgram();
bool ret = atomic_counters_compile(prog, GL_VERTEX_SHADER, src) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(src);
return ret;
}
static bool
run_test_combined_max_buffers(unsigned num_fragment_buffers,
unsigned num_vertex_buffers)
{
/* Generate a shader with 'num_fragment_buffers' buffers. */
char *fs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"#define PASTE(A,B) A ## B\n"
"#define Y(I) PASTE(y, I)\n"
"\n"
"out ivec4 fcolor;\n"
"\n"
"%s"
"\n"
"void main() {\n"
" uint x = 0u;\n"
" %s\n"
" fcolor.x = int(x);\n"
"}\n",
"#define I %d\n"
"layout(binding=I, offset=0) uniform atomic_uint Y(I);\n"
"#undef I\n",
" x += atomicCounterDecrement(y%d);\n",
num_fragment_buffers);
/* Generate a shader with 'num_vertex_buffers' buffers. */
char *vs_source = generate_source(
"#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"#define PASTE(A,B) A ## B\n"
"#define X(I) PASTE(x, I)\n"
"\n"
"in vec4 position;\n"
"flat out ivec4 vcolor;\n"
"\n"
"%s"
"\n"
"void main() {\n"
" uint x = 0u;\n"
" %s\n"
" vcolor.x = int(x);\n"
" gl_Position = position;\n"
"}\n",
"#define I %d\n"
"layout(binding=I, offset=4) uniform atomic_uint X(I);\n"
"#undef I\n",
" x += atomicCounterDecrement(x%d);\n",
num_vertex_buffers);
GLuint prog = glCreateProgram();
bool ret =
atomic_counters_compile(prog, GL_FRAGMENT_SHADER, fs_source) &&
atomic_counters_compile(prog, GL_VERTEX_SHADER, vs_source) &&
atomic_counters_link(prog);
glDeleteProgram(prog);
free(fs_source);
free(vs_source);
return ret;
}
static bool
run_test_fragment_max_bindings(unsigned binding)
{
const char *src_template = "#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"layout(binding=%d) uniform atomic_uint x;"
"\n"
"void main() {\n"
"}\n";
char *src;
GLuint prog = glCreateProgram();
int ret;
ret = asprintf(&src, src_template, binding);
assert(ret);
ret = atomic_counters_compile(prog, GL_FRAGMENT_SHADER, src);
glDeleteProgram(prog);
free(src);
return ret;
}
static bool
run_test_vertex_max_bindings(unsigned binding)
{
const char *src_template = "#version 140\n"
"#extension GL_ARB_shader_atomic_counters : enable\n"
"\n"
"in vec4 position;\n"
"layout(binding=%d) uniform atomic_uint x;"
"\n"
"void main() {\n"
" gl_Position = position;\n"
"}\n";
char *src;
GLuint prog = glCreateProgram();
int ret;
ret = asprintf(&src, src_template, binding);
assert(ret);
ret = atomic_counters_compile(prog, GL_VERTEX_SHADER, src);
glDeleteProgram(prog);
free(src);
return ret;
}
void
piglit_init(int argc, char **argv)
{
enum piglit_result status = PIGLIT_PASS;
struct atomic_counters_limits ls = atomic_counters_get_limits();
piglit_require_gl_version(31);
piglit_require_extension("GL_ARB_shader_atomic_counters");
printf("Max combined: %d\n", ls.combined_counters);
printf("Max VS: %d\n", ls.vertex_counters);
printf("Max FS: %d\n", ls.fragment_counters);
atomic_counters_subtest(&status, GL_VERTEX_SHADER,
"Vertex shader test above maximum "
"number of atomic counters",
!run_test_vertex_max_counters,
ls.vertex_counters + 1);
atomic_counters_subtest(&status, GL_FRAGMENT_SHADER,
"Fragment shader test above maximum "
"number of atomic counters",
!run_test_fragment_max_counters,
ls.fragment_counters + 1);
if (ls.vertex_counters + ls.fragment_counters > ls.combined_counters) {
atomic_counters_subtest(&status, GL_NONE,
"Combined test above maximum number "
"of atomic counters",
!run_test_combined_max_counters,
ls.fragment_counters,
ls.combined_counters
- ls.fragment_counters + 1);
} else {
piglit_report_subtest_result(
PIGLIT_SKIP, "Combined test above maximum number "
"of atomic counters");
}
atomic_counters_subtest(&status, GL_FRAGMENT_SHADER,
"Fragment shader test under maximum "
"number of atomic counter buffers",
run_test_fragment_max_buffers,
ls.fragment_buffers);
atomic_counters_subtest(&status, GL_FRAGMENT_SHADER,
"Fragment shader test above maximum "
"number of atomic counter buffers",
!run_test_fragment_max_buffers,
ls.fragment_buffers + 1);
atomic_counters_subtest(&status, GL_VERTEX_SHADER,
"Vertex shader test under maximum "
"number of atomic counter buffers",
run_test_vertex_max_buffers,
ls.vertex_buffers);
atomic_counters_subtest(&status, GL_VERTEX_SHADER,
"Vertex shader test above maximum "
"number of atomic counter buffers",
!run_test_vertex_max_buffers,
ls.vertex_buffers + 1);
const int combined_test_max_vs_bufs =
MIN2(ls.vertex_buffers, ls.combined_buffers - ls.fragment_buffers);
if (combined_test_max_vs_bufs > 0) {
atomic_counters_subtest(&status, GL_NONE,
"Combined test under maximum "
"number of atomic counter buffers",
run_test_combined_max_buffers,
ls.fragment_buffers,
combined_test_max_vs_bufs);
} else {
piglit_report_subtest_result(
PIGLIT_SKIP, "Combined test under maximum "
"number of atomic counter buffers");
}
if (combined_test_max_vs_bufs < ls.vertex_buffers) {
atomic_counters_subtest(&status, GL_NONE,
"Combined test above maximum "
"number of atomic counter buffers",
!run_test_combined_max_buffers,
ls.fragment_buffers,
combined_test_max_vs_bufs + 1);
} else {
piglit_report_subtest_result(
PIGLIT_SKIP, "Combined test above maximum "
"number of atomic counter buffers");
}
atomic_counters_subtest(&status, GL_FRAGMENT_SHADER,
"Fragment shader test above maximum "
"number of atomic counter bindings",
!run_test_fragment_max_bindings,
ls.bindings + 1);
atomic_counters_subtest(&status, GL_VERTEX_SHADER,
"Vertex shader test above maximum "
"number of atomic counter bindings",
!run_test_vertex_max_bindings,
ls.bindings + 1);
piglit_report_result(status);
}
enum piglit_result
piglit_display(void)
{
return PIGLIT_PASS;
}
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