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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.
*/
/**
* \file clip-flag-behavior.c
*
* This test verifies the following basic behaviors of the GL_CLIP_PLANEi
* flags:
*
* - There are exactly MAX_CLIP_PLANES of them, and trying to access a
* nonexistent flag produces a GL_INVALID_ENUM error.
*
* - They default to false.
*
* - Their behavior under glGetBooleanv, glIsEnabled, glEnable, and
* glDisable is consistent.
*/
#include "piglit-util-gl-common.h"
PIGLIT_GL_TEST_CONFIG_BEGIN
config.supports_gl_compat_version = 10;
config.window_visual = PIGLIT_GL_VISUAL_RGB | PIGLIT_GL_VISUAL_DOUBLE;
PIGLIT_GL_TEST_CONFIG_END
enum piglit_result
piglit_display(void)
{
return PIGLIT_FAIL;
}
static char *bool_to_string(bool b)
{
if (b)
return "true";
else
return "false";
}
static bool
check_bool(GLboolean b, bool expected)
{
/* Negate the bools before comparing so that distinct nonzero
* values compare equal.
*/
if ((!b) == (!expected)) {
return true;
} else {
printf("Expected %s, got %s\n", bool_to_string(expected),
bool_to_string(b));
return false;
}
}
/**
* Print "OK" and return true. This is helpful in chaining with the
* functions above, e.g.:
*
* bool pass = piglit_check_gl_error(...) && check_bool(...) && print_ok();
*/
static bool
print_ok()
{
printf("OK\n");
return true;
}
static bool
check_enable_state(char *enum_name, GLenum enum_value, bool expected)
{
GLboolean b;
bool pass = true;
printf("Trying glIsEnabled(%s): ", enum_name);
b = glIsEnabled(enum_value);
pass = piglit_check_gl_error(GL_NO_ERROR) && check_bool(b, expected)
&& print_ok() && pass;
printf("Trying glGetBooleanv(%s): ", enum_name);
glGetBooleanv(enum_value, &b);
pass = piglit_check_gl_error(GL_NO_ERROR) && check_bool(b, expected)
&& print_ok() && pass;
return pass;
}
void
piglit_init(int argc, char **argv)
{
GLint max_clip_planes;
bool pass = true;
GLint plane;
GLboolean b;
char enum_name[38];
GLenum enum_value;
printf("Querying GL_MAX_CLIP_PLANES: ");
glGetIntegerv(GL_MAX_CLIP_PLANES, &max_clip_planes);
if (!piglit_check_gl_error(GL_NO_ERROR))
piglit_report_result(PIGLIT_FAIL);
printf("%d\n", max_clip_planes);
if (max_clip_planes < 0) {
printf("Error: GL_MAX_CLIP_PLANES must be >= 0\n");
piglit_report_result(PIGLIT_FAIL);
}
/* Check behavior of GL_CLIP_PLANE0 + i where i < max_clip_planes */
for (plane = 0; plane < max_clip_planes; ++plane) {
enum_value = GL_CLIP_PLANE0 + plane;
sprintf(enum_name, "GL_CLIP_PLANE0 + %d", plane);
pass = check_enable_state(enum_name, enum_value, false) && pass;
printf("Trying glEnable(%s): ", enum_name);
glEnable(enum_value);
pass = piglit_check_gl_error(GL_NO_ERROR) && print_ok() && pass;
pass = check_enable_state(enum_name, enum_value, true) && pass;
printf("Trying glDisable(%s): ", enum_name);
glDisable(enum_value);
pass = piglit_check_gl_error(GL_NO_ERROR) && print_ok() && pass;
pass = check_enable_state(enum_name, enum_value, false) && pass;
}
/* Check behavior of GL_CLIP_PLANE0 + n where n == max_clip_planes */
enum_value = GL_CLIP_PLANE0 + max_clip_planes;
sprintf(enum_name, "GL_CLIP_PLANE0 + %d", max_clip_planes);
printf("Trying glIsEnabled(%s): ", enum_name);
b = glIsEnabled(enum_value);
pass = piglit_check_gl_error(GL_INVALID_ENUM) && print_ok() && pass;
printf("Trying glGetBooleanv(%s): ", enum_name);
glGetBooleanv(enum_value, &b);
pass = piglit_check_gl_error(GL_INVALID_ENUM) && print_ok() && pass;
printf("Trying glEnable(%s): ", enum_name);
glEnable(enum_value);
pass = piglit_check_gl_error(GL_INVALID_ENUM) && print_ok() && pass;
printf("Trying glDisable(%s): ", enum_name);
glDisable(enum_value);
pass = piglit_check_gl_error(GL_INVALID_ENUM) && print_ok() && pass;
piglit_report_result(pass ? PIGLIT_PASS : PIGLIT_FAIL);
}
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