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/* Copyright © 2011 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.
*/
#include "piglit-util-gl.h"
#include "piglit-glx-util.h"
#include "common.h"
static bool check_version(int major, int minor)
{
const int attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, major,
GLX_CONTEXT_MINOR_VERSION_ARB, minor,
None
};
GLXContext ctx;
ctx = glXCreateContextAttribsARB(dpy, fbconfig, NULL, True, attribs);
if (ctx != NULL) {
glXDestroyContext(dpy, ctx);
return true;
}
return false;
}
/**
* Try to create a context with the GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB
*
* Versions previous to OpenGL 3.0 should always reject the
* GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB as it is non-sense.
*
* \return
* If the context is (correctly) not created, \c true is returned. If the
* context is (incorrectly) created, \c false is returned.
*/
static bool try_version(int major, int minor)
{
const int attribs[] = {
GLX_CONTEXT_MAJOR_VERSION_ARB, major,
GLX_CONTEXT_MINOR_VERSION_ARB, minor,
GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
None
};
GLXContext ctx;
bool pass = true;
ctx = glXCreateContextAttribsARB(dpy, fbconfig, NULL, True, attribs);
XSync(dpy, 0);
if (ctx != NULL) {
fprintf(stderr,
"Created OpenGL context %d.%d with forward-compatible "
"flag, but this should have failed.\n",
major, minor);
glXDestroyContext(dpy, ctx);
pass = false;
}
/* The GLX_ARB_create_context spec says:
*
* "If attributes GLX_CONTEXT_MAJOR_VERSION_ARB and
* GLX_CONTEXT_MINOR_VERSION_ARB, when considered together with
* attributes GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB and
* GLX_RENDER_TYPE, specify an OpenGL version and feature set that
* are not defined, BadMatch is generated."
*/
if (!validate_glx_error_code(BadMatch, -1)) {
if (ctx == NULL)
fprintf(stderr, "Version = %d.%d\n", major, minor);
pass = false;
}
return pass;
}
int main(int argc, char **argv)
{
static const struct {
int major;
int minor;
/** Linux OpenGL ABI only requires OpenGL 1.2. */
bool version_must_be_supported;
} all_gl_versions[] = {
{ 1, 0, true },
{ 1, 1, true },
{ 1, 2, true },
{ 1, 3, false },
{ 1, 4, false },
{ 1, 5, false },
{ 2, 0, false },
{ 2, 1, false }
};
bool pass = true;
unsigned i;
GLX_ARB_create_context_setup();
/* The GLX_ARB_create_context spec says:
*
* "The defined versions of OpenGL at the time of writing are
* OpenGL 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 2.0, 2.1, 3.0, 3.1, and
* 3.2. Feature deprecation was introduced with OpenGL 3.0, so
* forward-compatible contexts may only be requested for OpenGL
* 3.0 and above. Thus, examples of invalid combinations of
* attributes include:
*
* - Major version < 1 or > 3
* - Major version == 1 and minor version < 0 or > 5
* - Major version == 2 and minor version < 0 or > 1
* - Major version == 3 and minor version > 2
* - Forward-compatible flag set and major version < 3
* - Color index rendering and major version >= 3"
*/
for (i = 0; i < ARRAY_SIZE(all_gl_versions); i++) {
if (!all_gl_versions[i].version_must_be_supported
&& !check_version(all_gl_versions[i].major,
all_gl_versions[i].minor)) {
printf("OpenGL version %d.%d not supported by this "
"implementation. Skipping forward-"
"compatibility flag check.\n",
all_gl_versions[i].major,
all_gl_versions[i].minor);
continue;
}
pass = try_version(all_gl_versions[i].major,
all_gl_versions[i].minor)
&& pass;
}
GLX_ARB_create_context_teardown();
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
return 0;
}
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