static void
fill_data_and_copy(test_data *data,
test_data *data_copy)
{
unsigned i;
for (i = 0; i < test_data_get_params_size(data); i++) {
/* It seems very unlikely that an implementation will
* support 0xDEADBEEF samples*/
test_data_set_value_at_index(data, i, 0xDEADBEEF);
test_data_set_value_at_index(data_copy, i, 0xDEADBEEF);
}
}
static bool
check_params_unmodified(test_data *data,
test_data *data_copy)
{
unsigned i;
bool result;
for (i = 0; i < test_data_get_params_size(data); i++) {
result = test_data_equal_at_index(data, data_copy, i);
if (!result)
break;
}
return result;
}
static bool
real_try(GLenum target, GLenum format, GLint max_samples,
const char *max_samples_name,
test_data *data_counts,
test_data *data_samples)
{
bool pass = true;
int buffer_size_in_elements = 0;
unsigned i;
GLint previous;
test_data_set_params_size(data_counts, 1);
test_data_execute(data_counts, target, format,
GL_NUM_SAMPLE_COUNTS);
buffer_size_in_elements = test_data_value_at_index(data_counts, 0);
pass = piglit_check_gl_error(0)
&& pass;
/* The GL_ARB_internalformat_query spec says:
*
* "Add new table 6.X Internalformat-specific
* Implementation Dependent Values after 6.52"
*
* Minimum
* Get Value Type Get Command Value
* --------- ---- ----------- -------
* SAMPLES 0*xZ+ GetInternalformativ fn1
* NUM_SAMPLE_COUNTS Z+ GetInternalformativ 1
*
* fn1: see section 6.X."
*/
if (buffer_size_in_elements < 1) {
ERROR_HEADER(data_counts);
fprintf(stderr,
"GL_NUM_SAMPLE_COUNTS is %d for %s/%s\n",
buffer_size_in_elements,
piglit_get_gl_enum_name(target),
piglit_get_gl_enum_name(format));
return false;
}
test_data_set_params_size(data_samples, buffer_size_in_elements);
/* Try GL_SAMPLES
*/
test_data_execute(data_samples, target,
format, GL_SAMPLES);
pass = piglit_check_gl_error(0)
&& pass;
/* The GL_ARB_internalformat_query spec says:
*
* "- SAMPLES: The sample counts supported for this
* <format> and <target> are written into <params>, in
* descending order. Only positive values are
* returned."
*
* We take "positive" to mean greater than zero. Zero isn't a
* valid sample count for multisampling. It's the special
* value used to request non-multisampling.
*/
previous = INT_MAX;
for (i = 0; i < test_data_get_params_size(data_samples); i++) {
if (test_data_value_at_index(data_samples, i) <= 0) {
ERROR_HEADER(data_samples);
fprintf(stderr,
"Invalid sample count [%u] = %" PRIi64 " returned "
"for %s/%s (num sample counts = %i)\n",
i, test_data_value_at_index(data_samples, i),
piglit_get_gl_enum_name(target),
piglit_get_gl_enum_name(format),
buffer_size_in_elements);
pass = false;
}
if (previous == test_data_value_at_index(data_samples, i)) {
ERROR_HEADER(data_samples);
fprintf(stderr,
"Duplicate values [%u] = [%u] = %" PRIi64 " returned "
"for %s/%s (num sample counts = %i)\n",
i - 1, i, test_data_value_at_index(data_samples, i),
piglit_get_gl_enum_name(target),
piglit_get_gl_enum_name(format),
buffer_size_in_elements);
pass = false;
}
if (previous < test_data_value_at_index(data_samples, i)) {
ERROR_HEADER(data_samples);
fprintf(stderr,
"Values not in descending order "
"([%u] = %d) < ([%u] = %" PRIi64 ") returned "
"for %s/%s (num sample counts = %i)\n",
i - 1, previous,
i, test_data_value_at_index(data_samples, i),
piglit_get_gl_enum_name(target),
piglit_get_gl_enum_name(format),
buffer_size_in_elements);
pass = false;
}
previous = test_data_value_at_index(data_samples, i);
}
/* The GL_ARB_internalformat_query spec says:
*
* "The maximum value in SAMPLES is guaranteed to be at
* least the lowest of the following:
*
* - The value of GetIntegerv(MAX_INTEGER_SAMPLES), if
* <internalformat> is a signed or unsigned integer format.
* - The value of GetIntegerv(MAX_DEPTH_TEXTURE_SAMPLES), if
* <internalformat> is a depth/stencil-renderable format and
* <target> is TEXTURE_2D_MULTISAMPLE or
* TEXTURE_2D_MULTISAMPLE_ARRAY.
* - The value of GetIntegerv(MAX_COLOR_TEXTURE_SAMPLES), if
* <internalformat> is a color-renderable format and <target>
* is TEXTURE_2D_MULTISAMPLE or TEXTURE_2D_MULTISAMPLE_ARRAY.
* - The value of GetIntegerv(MAX_SAMPLES)."
*
* Separate tests will verify the values for GL_MAX_*_SAMPLES.
*/
if (test_data_value_at_index(data_samples, 0) < max_samples) {
ERROR_HEADER(data_samples);
fprintf(stderr,
"GL_SAMPLES (%" PRIi64 ") smaller than %s (%d) "
"for %s/%s\n",
test_data_value_at_index(data_samples, 0),
max_samples_name,
max_samples,
piglit_get_gl_enum_name(target),
piglit_get_gl_enum_name(format));
pass = false;
}
return pass;
}
