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/*
* Copyright © 2013 Chris Forbes
*
* 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.
*/
#include "piglit-util-gl-common.h"
/**
* @file negative-max-samples.c
*
* Tests that asking for more than the appropriate sample count limit fails,
* with the correct errors.
*
* See also EXT_framebuffer_multisample/negative-max-samples for the simpler
* case prior to ARB_texture_multisample.
*
* Skips if ARB_internalformat_query is supported -- ARB_internalformat_query allows
* the limit to be higher for particular internalformats.
*/
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_DOUBLE | PIGLIT_GL_VISUAL_RGB;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
/* UNREACHED */
return PIGLIT_FAIL;
}
struct subtest
{
const char *name;
int use_texture;
GLenum internalformat;
GLenum limit;
GLenum error;
} subtests[] =
{
/* multisample textures have separate limits for each of color/depth/integer,
* all of which must be <= MAX_SAMPLES; GL_INVALID_OPERATION is generated if the
* limit is exceeded. */
{ "tex_color", GL_TRUE, GL_RGBA,
GL_MAX_COLOR_TEXTURE_SAMPLES, GL_INVALID_OPERATION },
{ "tex_depth", GL_TRUE, GL_DEPTH_COMPONENT,
GL_MAX_DEPTH_TEXTURE_SAMPLES, GL_INVALID_OPERATION },
{ "tex_integer", GL_TRUE, GL_RGBA16I,
GL_MAX_INTEGER_SAMPLES, GL_INVALID_OPERATION },
/* non-integer formats for renderbuffers are still only checked against
* MAX_SAMPLES, and generate GL_INVALID_VALUE if exceeded. */
{ "rb_color", GL_FALSE, GL_RGBA,
GL_MAX_SAMPLES, GL_INVALID_VALUE },
{ "rb_depth", GL_FALSE, GL_DEPTH_COMPONENT,
GL_MAX_SAMPLES, GL_INVALID_VALUE },
/* integer formats for renderbuffers are checked against MAX_INTEGER_SAMPLES */
{ "rb_integer", GL_FALSE, GL_RGBA16I,
GL_MAX_INTEGER_SAMPLES, GL_INVALID_OPERATION },
/* sentinel */
{ 0 },
};
static void
check_subtest(struct subtest *t)
{
int limit;
glGetIntegerv(t->limit, &limit);
if (t->use_texture) {
GLuint texture;
glGenTextures(1, &texture);
glBindTexture(GL_TEXTURE_2D_MULTISAMPLE, texture);
glTexImage2DMultisample(GL_TEXTURE_2D_MULTISAMPLE, limit+1,
t->internalformat, 64, 64, GL_TRUE);
} else {
GLuint rb;
glGenRenderbuffers(1, &rb);
glBindRenderbuffer(GL_RENDERBUFFER, rb);
glRenderbufferStorageMultisample(GL_RENDERBUFFER,
limit + 1, t->internalformat, 64, 64);
}
piglit_report_subtest_result(
piglit_check_gl_error(t->error) ? PIGLIT_PASS : PIGLIT_FAIL,
t->name);
}
void
piglit_init(int argc, char **argv)
{
struct subtest *t;
piglit_require_extension("GL_ARB_texture_multisample");
if (piglit_is_extension_supported("GL_ARB_internalformat_query")) {
printf("ARB_internalformat_query is supported and "
"redefines this behavior; skipping\n");
piglit_report_result(PIGLIT_SKIP);
}
for (t = subtests; t->name; t++)
check_subtest(t);
piglit_report_result(PIGLIT_PASS);
}
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